realtek: copy config/files/patches to 5.10

this patch copies the following files from 5.4 to 5.10:

- config-5.4   -> config-5.10
- files-5.4/   -> files-5.10/
- patches-5.4/ -> patches-5.10/

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[rebase on change in files-5.4]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/realtek/config-5.10

@@ -0,0 +1,192 @@
+CONFIG_ARCH_32BIT_OFF_T=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MMAP_RND_BITS_MAX=15
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_CEVT_R4K=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_HAVE_CLK=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_BOSTON=y
+CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
+CONFIG_CPU_BIG_ENDIAN=y
+CONFIG_CPU_GENERIC_DUMP_TLB=y
+CONFIG_CPU_HAS_LOAD_STORE_LR=y
+CONFIG_CPU_HAS_PREFETCH=y
+CONFIG_CPU_HAS_RIXI=y
+CONFIG_CPU_HAS_SYNC=y
+CONFIG_CPU_MIPS32=y
+# CONFIG_CPU_MIPS32_R1 is not set
+CONFIG_CPU_MIPS32_R2=y
+CONFIG_CPU_MIPSR2=y
+CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y
+CONFIG_CPU_R4K_CACHE_TLB=y
+CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
+CONFIG_CPU_SUPPORTS_HIGHMEM=y
+CONFIG_CPU_SUPPORTS_MSA=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CSRC_R4K=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_DMA_NONCOHERENT=y
+CONFIG_DMA_NONCOHERENT_CACHE_SYNC=y
+CONFIG_DTC=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_EARLY_PRINTK_8250=y
+CONFIG_EFI_EARLYCON=y
+CONFIG_ETHERNET_PACKET_MANGLE=y
+CONFIG_EXTRA_FIRMWARE="rtl838x_phy/rtl838x_8214fc.fw rtl838x_phy/rtl838x_8218b.fw rtl838x_phy/rtl838x_8380.fw"
+CONFIG_EXTRA_FIRMWARE_DIR="firmware"
+CONFIG_FIXED_PHY=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_AUTOSELECT=y
+CONFIG_FONT_SUPPORT=y
+CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_IOMAP=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_LIB_ASHLDI3=y
+CONFIG_GENERIC_LIB_ASHRDI3=y
+CONFIG_GENERIC_LIB_CMPDI2=y
+CONFIG_GENERIC_LIB_LSHRDI3=y
+CONFIG_GENERIC_LIB_UCMPDI2=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PHY=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_RTL8231=y
+CONFIG_GPIO_RTL838X=y
+CONFIG_REALTEK_SOC_PHY=y
+CONFIG_GRO_CELLS=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDWARE_WATCHPOINTS=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+# CONFIG_HIGH_RES_TIMERS is not set
+CONFIG_HWMON=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_I2C=y
+CONFIG_I2C_ALGOBIT=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_GPIO=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_MIPS_CPU=y
+CONFIG_IRQ_WORK=y
+CONFIG_JFFS2_ZLIB=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_LIBFDT=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_MARVELL_PHY=y
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MDIO_I2C=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MFD_SYSCON=y
+CONFIG_MIGRATION=y
+CONFIG_MIPS=y
+CONFIG_MIPS_ASID_BITS=8
+CONFIG_MIPS_ASID_SHIFT=0
+CONFIG_MIPS_CBPF_JIT=y
+CONFIG_MIPS_CLOCK_VSYSCALL=y
+# CONFIG_MIPS_CMDLINE_DTB_EXTEND is not set
+# CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER is not set
+CONFIG_MIPS_CMDLINE_FROM_DTB=y
+# CONFIG_MIPS_ELF_APPENDED_DTB is not set
+CONFIG_MIPS_L1_CACHE_SHIFT=5
+# CONFIG_MIPS_NO_APPENDED_DTB is not set
+CONFIG_MIPS_RAW_APPENDED_DTB=y
+CONFIG_MIPS_SPRAM=y
+CONFIG_MODULES_USE_ELF_REL=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_GEOMETRY=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPLIT_BRNIMAGE_FW=y
+CONFIG_MTD_SPLIT_EVA_FW=y
+CONFIG_MTD_SPLIT_FIRMWARE=y
+CONFIG_MTD_SPLIT_TPLINK_FW=y
+CONFIG_MTD_SPLIT_UIMAGE_FW=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NET_DEVLINK=y
+CONFIG_NET_DSA=y
+CONFIG_NET_DSA_RTL83XX=y
+CONFIG_NET_DSA_TAG_TRAILER=y
+CONFIG_NET_RTL838X=y
+CONFIG_NET_SWITCHDEV=y
+CONFIG_NO_GENERIC_PCI_IOPORT_MAP=y
+CONFIG_NVMEM=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_PCI_DRIVERS_LEGACY=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+CONFIG_PHYLINK=y
+CONFIG_PINCTRL=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_PSB6970_PHY=y
+CONFIG_REALTEK_PHY=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RTL838X=y
+CONFIG_RTL9300_TIMER=y
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SFP=y
+CONFIG_SPI=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_MEM=y
+CONFIG_SPI_RTL838X=y
+CONFIG_SRCU=y
+CONFIG_SWAP_IO_SPACE=y
+CONFIG_SWPHY=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_SYS_HAS_CPU_MIPS32_R2=y
+CONFIG_SYS_HAS_EARLY_PRINTK=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
+CONFIG_SYS_SUPPORTS_MIPS16=y
+CONFIG_TARGET_ISA_REV=2
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TINY_SRCU=y
+CONFIG_USE_GENERIC_EARLY_PRINTK_8250=y
+CONFIG_USE_OF=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y

target/linux/realtek/files-5.10/arch/mips/include/asm/mach-rtl838x/ioremap.h

@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef RTL838X_IOREMAP_H_
+#define RTL838X_IOREMAP_H_
+
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+{
+	return phys_addr;
+}
+
+static inline int is_rtl838x_internal_registers(phys_addr_t offset)
+{
+	/* IO-Block */
+	if (offset >= 0xb8000000 && offset < 0xb9000000)
+		return 1;
+	/* Switch block */
+	if (offset >= 0xbb000000 && offset < 0xbc000000)
+		return 1;
+	return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+					 unsigned long flags)
+{
+	if (is_rtl838x_internal_registers(offset))
+		return (void __iomem *)offset;
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return is_rtl838x_internal_registers((unsigned long)addr);
+}
+
+#endif

target/linux/realtek/files-5.10/arch/mips/include/asm/mach-rtl838x/irq.h

@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#ifndef _RTL83XX_IRQ_H_
+#define _RTL83XX_IRQ_H_
+
+#define NR_IRQS 32
+#include_next <irq.h>
+
+/* Global Interrupt Mask Register */
+#define RTL83XX_ICTL_GIMR	0x00
+/* Global Interrupt Status Register */
+#define RTL83XX_ICTL_GISR	0x04
+
+#define RTL83XX_IRQ_CPU_BASE	0
+#define RTL83XX_IRQ_CPU_NUM	8
+#define RTL83XX_IRQ_ICTL_BASE	(RTL83XX_IRQ_CPU_BASE + RTL83XX_IRQ_CPU_NUM)
+#define RTL83XX_IRQ_ICTL_NUM	32
+
+/* Cascaded interrupts */
+#define RTL83XX_ICTL1_IRQ	(RTL83XX_IRQ_CPU_BASE + 2)
+#define RTL83XX_ICTL2_IRQ	(RTL83XX_IRQ_CPU_BASE + 3)
+#define RTL83XX_ICTL3_IRQ	(RTL83XX_IRQ_CPU_BASE + 4)
+#define RTL83XX_ICTL4_IRQ	(RTL83XX_IRQ_CPU_BASE + 5)
+#define RTL83XX_ICTL5_IRQ	(RTL83XX_IRQ_CPU_BASE + 6)
+
+/* Interrupt routing register */
+#define RTL83XX_IRR0		0x08
+#define RTL83XX_IRR1		0x0c
+#define RTL83XX_IRR2		0x10
+#define RTL83XX_IRR3		0x14
+
+/* Cascade map */
+#define UART0_CASCADE		2
+#define UART1_CASCADE		1
+#define TC0_CASCADE		5
+#define TC1_CASCADE		1
+#define TC2_CASCADE		1
+#define TC3_CASCADE		1
+#define TC4_CASCADE		1
+#define OCPTO_CASCADE		1
+#define HLXTO_CASCADE		1
+#define SLXTO_CASCADE		1
+#define NIC_CASCADE		4
+#define GPIO_ABCD_CASCADE	4
+#define GPIO_EFGH_CASCADE	4
+#define RTC_CASCADE		4
+#define	SWCORE_CASCADE		3
+#define WDT_IP1_CASCADE		4
+#define WDT_IP2_CASCADE		5
+#define USB_H2_CASCADE		1
+
+/* Pack cascade map into interrupt routing registers */
+#define RTL83XX_IRR0_SETTING (\
+	(UART0_CASCADE		<< 28) | \
+	(UART1_CASCADE		<< 24) | \
+	(TC0_CASCADE		<< 20) | \
+	(TC1_CASCADE		<< 16) | \
+	(OCPTO_CASCADE		<< 12) | \
+	(HLXTO_CASCADE		<< 8)  | \
+	(SLXTO_CASCADE		<< 4)  | \
+	(NIC_CASCADE		<< 0))
+#define RTL83XX_IRR1_SETTING (\
+	(GPIO_ABCD_CASCADE	<< 28) | \
+	(GPIO_EFGH_CASCADE	<< 24) | \
+	(RTC_CASCADE		<< 20) | \
+	(SWCORE_CASCADE		<< 16))
+#define RTL83XX_IRR2_SETTING	0
+#define RTL83XX_IRR3_SETTING	0
+
+/* On the RTL8390 there is no GPIO_EFGH and RTC IRQ */
+#define RTL8390_IRR1_SETTING (\
+	(GPIO_ABCD_CASCADE	<< 28) | \
+	(SWCORE_CASCADE		<< 16))
+
+/* The RTL9300 has a different external IRQ numbering scheme */
+#define RTL9300_IRR0_SETTING (\
+	(UART1_CASCADE		<< 28) | \
+	(UART0_CASCADE		<< 24) | \
+	(USB_H2_CASCADE		<< 16) | \
+	(NIC_CASCADE		<< 0))
+#define RTL9300_IRR1_SETTING (\
+	(SWCORE_CASCADE		<< 28))
+#define RTL9300_IRR2_SETTING (\
+	(GPIO_ABCD_CASCADE	<< 20) | \
+	(TC4_CASCADE		<< 12) | \
+	(TC3_CASCADE		<< 8) | \
+	(TC2_CASCADE		<< 4) | \
+	(TC1_CASCADE		<< 0))
+#define RTL9300_IRR3_SETTING (\
+	(TC0_CASCADE		<< 28) | \
+	(WDT_IP1_CASCADE	<< 20))
+
+#endif /* _RTL83XX_IRQ_H_ */

target/linux/realtek/files-5.10/arch/mips/include/asm/mach-rtl838x/mach-rtl83xx.h

@@ -0,0 +1,418 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2006-2012 Tony Wu (tonywu@realtek.com)
+ * Copyright (C) 2020 B. Koblitz
+ */
+#ifndef _MACH_RTL838X_H_
+#define _MACH_RTL838X_H_
+
+#include <asm/types.h>
+/*
+ * Register access macros
+ */
+
+#define RTL838X_SW_BASE		((volatile void *) 0xBB000000)
+
+#define rtl83xx_r32(reg)	readl(reg)
+#define rtl83xx_w32(val, reg)	writel(val, reg)
+#define rtl83xx_w32_mask(clear, set, reg) rtl83xx_w32((rtl83xx_r32(reg) & ~(clear)) | (set), reg)
+
+#define rtl83xx_r8(reg)		readb(reg)
+#define rtl83xx_w8(val, reg)	writeb(val, reg)
+
+#define sw_r32(reg)		readl(RTL838X_SW_BASE + reg)
+#define sw_w32(val, reg)	writel(val, RTL838X_SW_BASE + reg)
+#define sw_w32_mask(clear, set, reg)	\
+				sw_w32((sw_r32(reg) & ~(clear)) | (set), reg)
+#define sw_r64(reg)		((((u64)readl(RTL838X_SW_BASE + reg)) << 32) | \
+				readl(RTL838X_SW_BASE + reg + 4))
+
+#define sw_w64(val, reg)	do { \
+					writel((u32)((val) >> 32), RTL838X_SW_BASE + reg); \
+					writel((u32)((val) & 0xffffffff), \
+							RTL838X_SW_BASE + reg + 4); \
+				} while (0)
+
+/*
+ * SPRAM
+ */
+#define RTL838X_ISPRAM_BASE	0x0
+#define RTL838X_DSPRAM_BASE	0x0
+
+/*
+ * IRQ Controller
+ */
+#define RTL838X_IRQ_CPU_BASE	0
+#define RTL838X_IRQ_CPU_NUM	8
+#define RTL838X_IRQ_ICTL_BASE	(RTL838X_IRQ_CPU_BASE + RTL838X_IRQ_CPU_NUM)
+#define RTL838X_IRQ_ICTL_NUM	32
+
+#define RTL83XX_IRQ_UART0		31
+#define RTL83XX_IRQ_UART1		30
+#define RTL83XX_IRQ_TC0			29
+#define RTL83XX_IRQ_TC1			28
+#define RTL83XX_IRQ_OCPTO		27
+#define RTL83XX_IRQ_HLXTO		26
+#define RTL83XX_IRQ_SLXTO		25
+#define RTL83XX_IRQ_NIC			24
+#define RTL83XX_IRQ_GPIO_ABCD		23
+#define RTL83XX_IRQ_GPIO_EFGH		22
+#define RTL83XX_IRQ_RTC			21
+#define RTL83XX_IRQ_SWCORE		20
+#define RTL83XX_IRQ_WDT_IP1		19
+#define RTL83XX_IRQ_WDT_IP2		18
+
+#define RTL9300_UART1_IRQ		31
+#define RTL9300_UART0_IRQ		30
+#define RTL9300_USB_H2_IRQ		28
+#define RTL9300_NIC_IRQ			24
+#define RTL9300_SWCORE_IRQ		23
+#define RTL9300_GPIO_ABC_IRQ		13
+#define RTL9300_TC4_IRQ			11
+#define RTL9300_TC3_IRQ			10
+#define RTL9300_TC2_IRQ			 9
+#define RTL9300_TC1_IRQ			 8
+#define RTL9300_TC0_IRQ			 7
+
+
+/*
+ * MIPS32R2 counter
+ */
+#define RTL838X_COMPARE_IRQ	(RTL838X_IRQ_CPU_BASE + 7)
+
+/*
+ *  ICTL
+ *  Base address 0xb8003000UL
+ */
+#define RTL838X_ICTL1_IRQ	(RTL838X_IRQ_CPU_BASE + 2)
+#define RTL838X_ICTL2_IRQ	(RTL838X_IRQ_CPU_BASE + 3)
+#define RTL838X_ICTL3_IRQ	(RTL838X_IRQ_CPU_BASE + 4)
+#define RTL838X_ICTL4_IRQ	(RTL838X_IRQ_CPU_BASE + 5)
+#define RTL838X_ICTL5_IRQ	(RTL838X_IRQ_CPU_BASE + 6)
+
+#define GIMR			(0x00)
+#define UART0_IE		(1 << 31)
+#define UART1_IE		(1 << 30)
+#define TC0_IE			(1 << 29)
+#define TC1_IE			(1 << 28)
+#define OCPTO_IE		(1 << 27)
+#define HLXTO_IE		(1 << 26)
+#define SLXTO_IE		(1 << 25)
+#define NIC_IE			(1 << 24)
+#define GPIO_ABCD_IE		(1 << 23)
+#define GPIO_EFGH_IE		(1 << 22)
+#define RTC_IE			(1 << 21)
+#define WDT_IP1_IE		(1 << 19)
+#define WDT_IP2_IE		(1 << 18)
+
+#define GISR			(0x04)
+#define UART0_IP		(1 << 31)
+#define UART1_IP		(1 << 30)
+#define TC0_IP			(1 << 29)
+#define TC1_IP			(1 << 28)
+#define OCPTO_IP		(1 << 27)
+#define HLXTO_IP		(1 << 26)
+#define SLXTO_IP		(1 << 25)
+#define NIC_IP			(1 << 24)
+#define GPIO_ABCD_IP		(1 << 23)
+#define GPIO_EFGH_IP		(1 << 22)
+#define RTC_IP			(1 << 21)
+#define WDT_IP1_IP		(1 << 19)
+#define WDT_IP2_IP		(1 << 18)
+
+
+/* Interrupt Routing Selection */
+#define UART0_RS		2
+#define UART1_RS		1
+#define TC0_RS			5
+#define TC1_RS			1
+#define OCPTO_RS		1
+#define HLXTO_RS		1
+#define SLXTO_RS		1
+#define NIC_RS			4
+#define GPIO_ABCD_RS		4
+#define GPIO_EFGH_RS		4
+#define RTC_RS			4
+#define	SWCORE_RS		3
+#define WDT_IP1_RS		4
+#define WDT_IP2_RS		5
+
+/* Interrupt IRQ Assignments */
+#define UART0_IRQ		31
+#define UART1_IRQ		30
+#define TC0_IRQ			29
+#define TC1_IRQ			28
+#define OCPTO_IRQ		27
+#define HLXTO_IRQ		26
+#define SLXTO_IRQ		25
+#define NIC_IRQ			24
+#define GPIO_ABCD_IRQ		23
+#define GPIO_EFGH_IRQ		22
+#define RTC_IRQ			21
+#define	SWCORE_IRQ		20
+#define WDT_IP1_IRQ		19
+#define WDT_IP2_IRQ		18
+
+#define SYSTEM_FREQ		200000000
+#define RTL838X_UART0_BASE	((volatile void *)(0xb8002000UL))
+#define RTL838X_UART0_BAUD	38400  /* ex. 19200 or 38400 or 57600 or 115200 */
+#define RTL838X_UART0_FREQ	(SYSTEM_FREQ - RTL838X_UART0_BAUD * 24)
+#define RTL838X_UART0_MAPBASE	0x18002000UL
+#define RTL838X_UART0_MAPSIZE	0x100
+#define RTL838X_UART0_IRQ	UART0_IRQ
+
+#define RTL838X_UART1_BASE	((volatile void *)(0xb8002100UL))
+#define RTL838X_UART1_BAUD	38400  /* ex. 19200 or 38400 or 57600 or 115200 */
+#define RTL838X_UART1_FREQ	(SYSTEM_FREQ - RTL838X_UART1_BAUD * 24)
+#define RTL838X_UART1_MAPBASE	0x18002100UL
+#define RTL838X_UART1_MAPSIZE	0x100
+#define RTL838X_UART1_IRQ	UART1_IRQ
+
+#define UART0_RBR		(RTL838X_UART0_BASE + 0x000)
+#define UART0_THR		(RTL838X_UART0_BASE + 0x000)
+#define UART0_DLL		(RTL838X_UART0_BASE + 0x000)
+#define UART0_IER		(RTL838X_UART0_BASE + 0x004)
+#define UART0_DLM		(RTL838X_UART0_BASE + 0x004)
+#define UART0_IIR		(RTL838X_UART0_BASE + 0x008)
+#define UART0_FCR		(RTL838X_UART0_BASE + 0x008)
+#define UART0_LCR		(RTL838X_UART0_BASE + 0x00C)
+#define UART0_MCR		(RTL838X_UART0_BASE + 0x010)
+#define UART0_LSR		(RTL838X_UART0_BASE + 0x014)
+
+#define UART1_RBR		(RTL838X_UART1_BASE + 0x000)
+#define UART1_THR		(RTL838X_UART1_BASE + 0x000)
+#define UART1_DLL		(RTL838X_UART1_BASE + 0x000)
+#define UART1_IER		(RTL838X_UART1_BASE + 0x004)
+#define UART1_DLM		(RTL838X_UART1_BASE + 0x004)
+#define UART1_IIR		(RTL838X_UART1_BASE + 0x008)
+#define UART1_FCR		(RTL838X_UART1_BASE + 0x008)
+#define UART1_LCR		(RTL838X_UART1_BASE + 0x00C)
+#define UART1_MCR		(RTL838X_UART1_BASE + 0x010)
+#define UART1_LSR		(RTL838X_UART1_BASE + 0x014)
+
+/*
+ * Memory Controller
+ */
+#define MC_MCR			0xB8001000
+#define MC_MCR_VAL		0x00000000
+
+#define MC_DCR			0xB8001004
+#define MC_DCR0_VAL		0x54480000
+
+#define MC_DTCR			0xB8001008
+#define MC_DTCR_VAL		0xFFFF05C0
+
+/*
+ * GPIO
+ */
+#define GPIO_CTRL_REG_BASE		((volatile void *) 0xb8003500)
+#define RTL838X_GPIO_PABC_CNR		(GPIO_CTRL_REG_BASE + 0x0)
+#define RTL838X_GPIO_PABC_TYPE		(GPIO_CTRL_REG_BASE + 0x04)
+#define RTL838X_GPIO_PABC_DIR		(GPIO_CTRL_REG_BASE + 0x8)
+#define RTL838X_GPIO_PABC_DATA		(GPIO_CTRL_REG_BASE + 0xc)
+#define RTL838X_GPIO_PABC_ISR		(GPIO_CTRL_REG_BASE + 0x10)
+#define RTL838X_GPIO_PAB_IMR		(GPIO_CTRL_REG_BASE + 0x14)
+#define RTL838X_GPIO_PC_IMR		(GPIO_CTRL_REG_BASE + 0x18)
+
+#define RTL838X_MODEL_NAME_INFO		(0x00D4)
+#define RTL839X_MODEL_NAME_INFO		(0x0FF0)
+#define RTL93XX_MODEL_NAME_INFO		(0x0004)
+
+#define RTL838X_LED_GLB_CTRL		(0xA000)
+#define RTL839X_LED_GLB_CTRL		(0x00E4)
+#define RTL9302_LED_GLB_CTRL		(0xcc00)
+#define RTL930X_LED_GLB_CTRL		(0xC400)
+#define RTL931X_LED_GLB_CTRL		(0x0600)
+
+#define RTL838X_EXT_GPIO_DIR		(0xA08C)
+#define RTL839X_EXT_GPIO_DIR		(0x0214)
+#define RTL838X_EXT_GPIO_DATA		(0xA094)
+#define RTL839X_EXT_GPIO_DATA		(0x021c)
+#define RTL838X_EXT_GPIO_INDRT_ACCESS	(0xA09C)
+#define RTL839X_EXT_GPIO_INDRT_ACCESS	(0x0224)
+#define RTL838X_EXTRA_GPIO_CTRL		(0xA0E0)
+#define RTL838X_DMY_REG5		(0x0144)
+#define RTL838X_EXTRA_GPIO_CTRL		(0xA0E0)
+
+#define RTL838X_GMII_INTF_SEL		(0x1000)
+#define RTL838X_IO_DRIVING_ABILITY_CTRL	(0x1010)
+
+#define RTL838X_GPIO_A7		31
+#define RTL838X_GPIO_A6		30
+#define RTL838X_GPIO_A5		29
+#define RTL838X_GPIO_A4		28
+#define RTL838X_GPIO_A3		27
+#define RTL838X_GPIO_A2		26
+#define RTL838X_GPIO_A1		25
+#define RTL838X_GPIO_A0		24
+#define RTL838X_GPIO_B7		23
+#define RTL838X_GPIO_B6		22
+#define RTL838X_GPIO_B5		21
+#define RTL838X_GPIO_B4		20
+#define RTL838X_GPIO_B3		19
+#define RTL838X_GPIO_B2		18
+#define RTL838X_GPIO_B1		17
+#define RTL838X_GPIO_B0		16
+#define RTL838X_GPIO_C7		15
+#define RTL838X_GPIO_C6		14
+#define RTL838X_GPIO_C5		13
+#define RTL838X_GPIO_C4		12
+#define RTL838X_GPIO_C3		11
+#define RTL838X_GPIO_C2		10
+#define RTL838X_GPIO_C1		9
+#define RTL838X_GPIO_C0		8
+
+#define RTL838X_INT_RW_CTRL		(0x0058)
+#define RTL838X_EXT_VERSION		(0x00D0)
+#define RTL838X_PLL_CML_CTRL		(0x0FF8)
+#define RTL838X_STRAP_DBG		(0x100C)
+
+/*
+ * Reset
+ */
+#define	RGCR				(0x1E70)
+#define RTL838X_RST_GLB_CTRL_0		(0x003c)
+#define RTL838X_RST_GLB_CTRL_1		(0x0040)
+#define RTL839X_RST_GLB_CTRL		(0x0014)
+#define RTL930X_RST_GLB_CTRL_0		(0x000c)
+#define RTL931X_RST_GLB_CTRL		(0x0400)
+
+/* LED control by switch */
+#define RTL838X_LED_MODE_SEL		(0x1004)
+#define RTL838X_LED_MODE_CTRL		(0xA004)
+#define RTL838X_LED_P_EN_CTRL		(0xA008)
+
+/* LED control by software */
+#define RTL838X_LED_SW_CTRL		(0x0128)
+#define RTL839X_LED_SW_CTRL		(0xA00C)
+#define RTL838X_LED_SW_P_EN_CTRL	(0xA010)
+#define RTL839X_LED_SW_P_EN_CTRL	(0x012C)
+#define RTL838X_LED0_SW_P_EN_CTRL	(0xA010)
+#define RTL839X_LED0_SW_P_EN_CTRL	(0x012C)
+#define RTL838X_LED1_SW_P_EN_CTRL	(0xA014)
+#define RTL839X_LED1_SW_P_EN_CTRL	(0x0130)
+#define RTL838X_LED2_SW_P_EN_CTRL	(0xA018)
+#define RTL839X_LED2_SW_P_EN_CTRL	(0x0134)
+#define RTL838X_LED_SW_P_CTRL		(0xA01C)
+#define RTL839X_LED_SW_P_CTRL		(0x0144)
+
+#define RTL839X_MAC_EFUSE_CTRL		(0x02ac)
+
+/*
+ * MDIO via Realtek's SMI interface
+ */
+#define RTL838X_SMI_GLB_CTRL		(0xa100)
+#define RTL838X_SMI_ACCESS_PHY_CTRL_0	(0xa1b8)
+#define RTL838X_SMI_ACCESS_PHY_CTRL_1	(0xa1bc)
+#define RTL838X_SMI_ACCESS_PHY_CTRL_2	(0xa1c0)
+#define RTL838X_SMI_ACCESS_PHY_CTRL_3	(0xa1c4)
+#define RTL838X_SMI_PORT0_5_ADDR_CTRL	(0xa1c8)
+#define RTL838X_SMI_POLL_CTRL		(0xa17c)
+
+#define RTL839X_SMI_GLB_CTRL		(0x03f8)
+#define RTL839X_SMI_PORT_POLLING_CTRL	(0x03fc)
+#define RTL839X_PHYREG_ACCESS_CTRL	(0x03DC)
+#define RTL839X_PHYREG_CTRL		(0x03E0)
+#define RTL839X_PHYREG_PORT_CTRL	(0x03E4)
+#define RTL839X_PHYREG_DATA_CTRL	(0x03F0)
+#define RTL839X_PHYREG_MMD_CTRL		(0x3F4)
+
+#define RTL930X_SMI_GLB_CTRL		(0xCA00)
+#define RTL930X_SMI_POLL_CTRL		(0xca90)
+#define RTL930X_SMI_PORT0_15_POLLING_SEL (0xCA08)
+#define RTL930X_SMI_PORT16_27_POLLING_SEL (0xCA0C)
+#define RTL930X_SMI_PORT0_5_ADDR	(0xCB80)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_0	(0xCB70)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_1	(0xCB74)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_2	(0xCB78)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_3	(0xCB7C)
+
+#define RTL931X_SMI_GLB_CTRL1		(0x0CBC)
+#define RTL931X_SMI_GLB_CTRL0		(0x0CC0)
+#define RTL931X_SMI_PORT_POLLING_CTRL	(0x0CCC)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_0	(0x0C00)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_1	(0x0C04)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_2	(0x0C08)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_3	(0x0C10)
+#define RTL931X_SMI_INDRT_ACCESS_BC_PHYID_CTRL (0x0C14)
+#define RTL931X_SMI_INDRT_ACCESS_MMD_CTRL (0xC18)
+
+#define RTL930X_SMI_GLB_CTRL		(0xCA00)
+#define RTL930X_SMI_POLL_CTRL		(0xca90)
+#define RTL930X_SMI_PORT0_15_POLLING_SEL (0xCA08)
+#define RTL930X_SMI_PORT16_27_POLLING_SEL (0xCA0C)
+#define RTL930X_SMI_PORT0_5_ADDR	(0xCB80)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_0	(0xCB70)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_1	(0xCB74)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_2	(0xCB78)
+#define RTL930X_SMI_ACCESS_PHY_CTRL_3	(0xCB7C)
+
+#define RTL931X_SMI_GLB_CTRL1		(0x0CBC)
+#define RTL931X_SMI_GLB_CTRL0		(0x0CC0)
+#define RTL931X_SMI_PORT_POLLING_CTRL	(0x0CCC)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_0	(0x0C00)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_1	(0x0C04)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_2	(0x0C08)
+#define RTL931X_SMI_INDRT_ACCESS_CTRL_3	(0x0C10)
+
+/*
+ * Switch interrupts
+ */
+#define RTL838X_IMR_GLB			(0x1100)
+#define RTL838X_IMR_PORT_LINK_STS_CHG	(0x1104)
+#define RTL838X_ISR_GLB_SRC		(0x1148)
+#define RTL838X_ISR_PORT_LINK_STS_CHG	(0x114C)
+
+#define RTL839X_IMR_GLB			(0x0064)
+#define RTL839X_IMR_PORT_LINK_STS_CHG	(0x0068)
+#define RTL839X_ISR_GLB_SRC		(0x009c)
+#define RTL839X_ISR_PORT_LINK_STS_CHG	(0x00a0)
+
+#define RTL930X_IMR_GLB			(0xC628)
+#define RTL930X_IMR_PORT_LINK_STS_CHG	(0xC62C)
+#define RTL930X_ISR_GLB			(0xC658)
+#define RTL930X_ISR_PORT_LINK_STS_CHG	(0xC660)
+
+// IMR_GLB does not exit on RTL931X
+#define RTL931X_IMR_PORT_LINK_STS_CHG	(0x126C)
+#define RTL931X_ISR_GLB_SRC		(0x12B4)
+#define RTL931X_ISR_PORT_LINK_STS_CHG	(0x12B8)
+
+/* Definition of family IDs */
+#define RTL8389_FAMILY_ID   (0x8389)
+#define RTL8328_FAMILY_ID   (0x8328)
+#define RTL8390_FAMILY_ID   (0x8390)
+#define RTL8350_FAMILY_ID   (0x8350)
+#define RTL8380_FAMILY_ID   (0x8380)
+#define RTL8330_FAMILY_ID   (0x8330)
+#define RTL9300_FAMILY_ID   (0x9300)
+#define RTL9310_FAMILY_ID   (0x9310)
+
+/* Basic SoC Features */
+#define RTL838X_CPU_PORT			28
+#define RTL839X_CPU_PORT			52
+#define RTL930X_CPU_PORT			28
+#define RTL931X_CPU_PORT			56
+
+struct rtl83xx_soc_info {
+	unsigned char *name;
+	unsigned int id;
+	unsigned int family;
+	unsigned char *compatible;
+	volatile void *sw_base;
+	volatile void *icu_base;
+	int cpu_port;
+};
+
+/* rtl83xx-related functions used across subsystems */
+int rtl838x_smi_wait_op(int timeout);
+int rtl838x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int rtl838x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+int rtl839x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int rtl839x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+int rtl930x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int rtl930x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+int rtl931x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int rtl931x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+
+#endif   /* _MACH_RTL838X_H_ */

target/linux/realtek/files-5.10/arch/mips/rtl838x/Makefile

@@ -0,0 +1,5 @@
+#
+# Makefile for the rtl838x specific parts of the kernel
+#
+
+obj-y := setup.o prom.o irq.o

target/linux/realtek/files-5.10/arch/mips/rtl838x/Platform

@@ -0,0 +1,6 @@
+#
+# Realtek RTL838x SoCs
+#
+platform-$(CONFIG_RTL838X) += rtl838x/
+cflags-$(CONFIG_RTL838X)   += -I$(srctree)/arch/mips/include/asm/mach-rtl838x/
+load-$(CONFIG_RTL838X)     += 0xffffffff80000000

target/linux/realtek/files-5.10/arch/mips/rtl838x/irq.c

@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Realtek RTL83XX architecture specific IRQ handling
+ *
+ * based on the original BSP
+ * Copyright (C) 2006-2012 Tony Wu (tonywu@realtek.com)
+ * Copyright (C) 2020 B. Koblitz
+ * Copyright (C) 2020 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2020 John Crispin <john@phrozen.org>
+ */
+
+#include <linux/irqchip.h>
+#include <linux/spinlock.h>
+#include <linux/of_address.h>
+#include <asm/irq_cpu.h>
+#include <linux/of_irq.h>
+#include <asm/cevt-r4k.h>
+
+#include <mach-rtl83xx.h>
+#include "irq.h"
+
+#define REALTEK_CPU_IRQ_SHARED0		(MIPS_CPU_IRQ_BASE + 2)
+#define REALTEK_CPU_IRQ_UART		(MIPS_CPU_IRQ_BASE + 3)
+#define REALTEK_CPU_IRQ_SWITCH		(MIPS_CPU_IRQ_BASE + 4)
+#define REALTEK_CPU_IRQ_SHARED1		(MIPS_CPU_IRQ_BASE + 5)
+#define REALTEK_CPU_IRQ_EXTERNAL	(MIPS_CPU_IRQ_BASE + 6)
+#define REALTEK_CPU_IRQ_COUNTER		(MIPS_CPU_IRQ_BASE + 7)
+
+#define REG(x)				(rtl83xx_ictl_base + x)
+
+extern struct rtl83xx_soc_info soc_info;
+
+static DEFINE_RAW_SPINLOCK(irq_lock);
+static void __iomem *rtl83xx_ictl_base;
+
+static void rtl83xx_ictl_enable_irq(struct irq_data *i)
+{
+	unsigned long flags;
+	u32 value;
+
+	raw_spin_lock_irqsave(&irq_lock, flags);
+
+	value = rtl83xx_r32(REG(RTL83XX_ICTL_GIMR));
+	value |= BIT(i->hwirq);
+	rtl83xx_w32(value, REG(RTL83XX_ICTL_GIMR));
+
+	raw_spin_unlock_irqrestore(&irq_lock, flags);
+}
+
+static void rtl83xx_ictl_disable_irq(struct irq_data *i)
+{
+	unsigned long flags;
+	u32 value;
+
+	raw_spin_lock_irqsave(&irq_lock, flags);
+
+	value = rtl83xx_r32(REG(RTL83XX_ICTL_GIMR));
+	value &= ~BIT(i->hwirq);
+	rtl83xx_w32(value, REG(RTL83XX_ICTL_GIMR));
+
+	raw_spin_unlock_irqrestore(&irq_lock, flags);
+}
+
+static struct irq_chip rtl83xx_ictl_irq = {
+	.name = "RTL83xx",
+	.irq_enable = rtl83xx_ictl_enable_irq,
+	.irq_disable = rtl83xx_ictl_disable_irq,
+	.irq_ack = rtl83xx_ictl_disable_irq,
+	.irq_mask = rtl83xx_ictl_disable_irq,
+	.irq_unmask = rtl83xx_ictl_enable_irq,
+	.irq_eoi = rtl83xx_ictl_enable_irq,
+};
+
+static int intc_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
+{
+	irq_set_chip_and_handler(hw, &rtl83xx_ictl_irq, handle_level_irq);
+
+	return 0;
+}
+
+static const struct irq_domain_ops irq_domain_ops = {
+	.map = intc_map,
+	.xlate = irq_domain_xlate_onecell,
+};
+
+static void rtl838x_irq_dispatch(struct irq_desc *desc)
+{
+	unsigned int pending = rtl83xx_r32(REG(RTL83XX_ICTL_GIMR)) &
+				rtl83xx_r32(REG(RTL83XX_ICTL_GISR));
+
+	if (pending) {
+		struct irq_domain *domain = irq_desc_get_handler_data(desc);
+		generic_handle_irq(irq_find_mapping(domain, __ffs(pending)));
+	} else {
+		spurious_interrupt();
+	}
+}
+
+asmlinkage void plat_rtl83xx_irq_dispatch(void)
+{
+	unsigned int pending;
+
+	pending =  read_c0_cause() & read_c0_status() & ST0_IM;
+
+	if (pending & CAUSEF_IP7)
+		do_IRQ(REALTEK_CPU_IRQ_COUNTER);
+
+	else if (pending & CAUSEF_IP6)
+		do_IRQ(REALTEK_CPU_IRQ_EXTERNAL);
+
+	else if (pending & CAUSEF_IP5)
+		do_IRQ(REALTEK_CPU_IRQ_SHARED1);
+
+	else if (pending & CAUSEF_IP4)
+		do_IRQ(REALTEK_CPU_IRQ_SWITCH);
+
+	else if (pending & CAUSEF_IP3)
+		do_IRQ(REALTEK_CPU_IRQ_UART);
+
+	else if (pending & CAUSEF_IP2)
+		do_IRQ(REALTEK_CPU_IRQ_SHARED0);
+
+	else
+		spurious_interrupt();
+}
+
+static int icu_setup_domain(struct device_node *node)
+{
+	struct irq_domain *domain;
+
+	domain = irq_domain_add_simple(node, 32, 0,
+				       &irq_domain_ops, NULL);
+	irq_set_chained_handler_and_data(2, rtl838x_irq_dispatch, domain);
+	irq_set_chained_handler_and_data(3, rtl838x_irq_dispatch, domain);
+	irq_set_chained_handler_and_data(4, rtl838x_irq_dispatch, domain);
+	irq_set_chained_handler_and_data(5, rtl838x_irq_dispatch, domain);
+
+	rtl83xx_ictl_base = of_iomap(node, 0);
+	if (!rtl83xx_ictl_base)
+		return -EINVAL;
+
+	return 0;
+}
+
+static void __init rtl8380_icu_of_init(struct device_node *node, struct device_node *parent)
+{
+	if (icu_setup_domain(node))
+		return;
+
+	/* Disable all cascaded interrupts */
+	rtl83xx_w32(0, REG(RTL83XX_ICTL_GIMR));
+
+	/* Set up interrupt routing */
+	rtl83xx_w32(RTL83XX_IRR0_SETTING, REG(RTL83XX_IRR0));
+	rtl83xx_w32(RTL83XX_IRR1_SETTING, REG(RTL83XX_IRR1));
+	rtl83xx_w32(RTL83XX_IRR2_SETTING, REG(RTL83XX_IRR2));
+	rtl83xx_w32(RTL83XX_IRR3_SETTING, REG(RTL83XX_IRR3));
+
+	/* Clear timer interrupt */
+	write_c0_compare(0);
+
+	/* Enable all CPU interrupts */
+	write_c0_status(read_c0_status() | ST0_IM);
+
+	/* Enable timer0 and uart0 interrupts */
+	rtl83xx_w32(BIT(RTL83XX_IRQ_TC0) | BIT(RTL83XX_IRQ_UART0), REG(RTL83XX_ICTL_GIMR));
+}
+
+static void __init rtl8390_icu_of_init(struct device_node *node, struct device_node *parent)
+{
+	if (icu_setup_domain(node))
+		return;
+
+	/* Disable all cascaded interrupts */
+	rtl83xx_w32(0, REG(RTL83XX_ICTL_GIMR));
+
+	/* Set up interrupt routing */
+	rtl83xx_w32(RTL83XX_IRR0_SETTING, REG(RTL83XX_IRR0));
+	rtl83xx_w32(RTL8390_IRR1_SETTING, REG(RTL83XX_IRR1));
+	rtl83xx_w32(RTL83XX_IRR2_SETTING, REG(RTL83XX_IRR2));
+	rtl83xx_w32(RTL83XX_IRR3_SETTING, REG(RTL83XX_IRR3));
+
+	/* Clear timer interrupt */
+	write_c0_compare(0);
+
+	/* Enable all CPU interrupts */
+	write_c0_status(read_c0_status() | ST0_IM);
+
+	/* Enable timer0 and uart0 interrupts */
+	rtl83xx_w32(BIT(RTL83XX_IRQ_TC0) | BIT(RTL83XX_IRQ_UART0), REG(RTL83XX_ICTL_GIMR));
+}
+
+static void __init rtl9300_icu_of_init(struct device_node *node, struct device_node *parent)
+{
+	pr_info("RTL9300: Setting up IRQs\n");
+	if (icu_setup_domain(node))
+		return;
+
+	/* Disable all cascaded interrupts */
+	rtl83xx_w32(0, REG(RTL83XX_ICTL_GIMR));
+
+	/* Set up interrupt routing */
+	rtl83xx_w32(RTL9300_IRR0_SETTING, REG(RTL83XX_IRR0));
+	rtl83xx_w32(RTL9300_IRR1_SETTING, REG(RTL83XX_IRR1));
+	rtl83xx_w32(RTL9300_IRR2_SETTING, REG(RTL83XX_IRR2));
+	rtl83xx_w32(RTL9300_IRR3_SETTING, REG(RTL83XX_IRR3));
+
+	/* Clear timer interrupt */
+	write_c0_compare(0);
+
+	/* Enable all CPU interrupts */
+	write_c0_status(read_c0_status() | ST0_IM);
+}
+
+static struct of_device_id __initdata of_irq_ids[] = {
+	{ .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_irq_of_init },
+	{ .compatible = "realtek,rt8380-intc", .data = rtl8380_icu_of_init },
+	{ .compatible = "realtek,rt8390-intc", .data = rtl8390_icu_of_init },
+	{ .compatible = "realtek,rt9300-intc", .data = rtl9300_icu_of_init },
+	{},
+};
+
+void __init arch_init_irq(void)
+{
+	of_irq_init(of_irq_ids);
+}

target/linux/realtek/files-5.10/arch/mips/rtl838x/prom.c

@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * prom.c
+ * Early intialization code for the Realtek RTL838X SoC
+ *
+ * based on the original BSP by
+ * Copyright (C) 2006-2012 Tony Wu (tonywu@realtek.com)
+ * Copyright (C) 2020 B. Koblitz
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/of_fdt.h>
+#include <linux/libfdt.h>
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+#include <asm/page.h>
+#include <asm/cpu.h>
+
+#include <mach-rtl83xx.h>
+
+extern char arcs_cmdline[];
+extern const char __appended_dtb;
+
+struct rtl83xx_soc_info soc_info;
+const void *fdt;
+
+const char *get_system_type(void)
+{
+	return soc_info.name;
+}
+
+void __init prom_free_prom_memory(void)
+{
+
+}
+
+void __init device_tree_init(void)
+{
+	if (!fdt_check_header(&__appended_dtb)) {
+		fdt = &__appended_dtb;
+		pr_info("Using appended Device Tree.\n");
+	}
+	initial_boot_params = (void *)fdt;
+	unflatten_and_copy_device_tree();
+}
+
+static void __init prom_init_cmdline(void)
+{
+	int argc = fw_arg0;
+	char **argv = (char **) KSEG1ADDR(fw_arg1);
+	int i;
+
+	arcs_cmdline[0] = '\0';
+
+	for (i = 0; i < argc; i++) {
+		char *p = (char *) KSEG1ADDR(argv[i]);
+
+		if (CPHYSADDR(p) && *p) {
+			strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
+			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
+		}
+	}
+	pr_info("Kernel command line: %s\n", arcs_cmdline);
+}
+
+void __init identify_rtl9302(void)
+{
+	switch (sw_r32(RTL93XX_MODEL_NAME_INFO) & 0xfffffff0) {
+	case 0x93020810:
+		soc_info.name = "RTL9302A 12x2.5G";
+		break;
+	case 0x93021010:
+		soc_info.name = "RTL9302B 8x2.5G";
+		break;
+	case 0x93021810:
+		soc_info.name = "RTL9302C 16x2.5G";
+		break;
+	case 0x93022010:
+		soc_info.name = "RTL9302D 24x2.5G";
+		break;
+	case 0x93020800:
+		soc_info.name = "RTL9302A";
+		break;
+	case 0x93021000:
+		soc_info.name = "RTL9302B";
+		break;
+	case 0x93021800:
+		soc_info.name = "RTL9302C";
+		break;
+	case 0x93022000:
+		soc_info.name = "RTL9302D";
+		break;
+	case 0x93023001:
+		soc_info.name = "RTL9302F";
+		break;
+	default:
+		soc_info.name = "RTL9302";
+	}
+}
+
+void __init prom_init(void)
+{
+	uint32_t model;
+
+	/* uart0 */
+	setup_8250_early_printk_port(0xb8002000, 2, 0);
+
+	model = sw_r32(RTL838X_MODEL_NAME_INFO);
+	pr_info("RTL838X model is %x\n", model);
+	model = model >> 16 & 0xFFFF;
+
+	if ((model != 0x8328) && (model != 0x8330) && (model != 0x8332)
+	    && (model != 0x8380) && (model != 0x8382)) {
+		model = sw_r32(RTL839X_MODEL_NAME_INFO);
+		pr_info("RTL839X model is %x\n", model);
+		model = model >> 16 & 0xFFFF;
+	}
+
+	if ((model & 0x8390) != 0x8380 && (model & 0x8390) != 0x8390) {
+		model = sw_r32(RTL93XX_MODEL_NAME_INFO);
+		pr_info("RTL93XX model is %x\n", model);
+		model = model >> 16 & 0xFFFF;
+	}
+
+	soc_info.id = model;
+
+	switch (model) {
+	case 0x8328:
+		soc_info.name = "RTL8328";
+		soc_info.family = RTL8328_FAMILY_ID;
+		break;
+	case 0x8332:
+		soc_info.name = "RTL8332";
+		soc_info.family = RTL8380_FAMILY_ID;
+		break;
+	case 0x8380:
+		soc_info.name = "RTL8380";
+		soc_info.family = RTL8380_FAMILY_ID;
+		break;
+	case 0x8382:
+		soc_info.name = "RTL8382";
+		soc_info.family = RTL8380_FAMILY_ID;
+		break;
+	case 0x8390:
+		soc_info.name = "RTL8390";
+		soc_info.family = RTL8390_FAMILY_ID;
+		break;
+	case 0x8391:
+		soc_info.name = "RTL8391";
+		soc_info.family = RTL8390_FAMILY_ID;
+		break;
+	case 0x8392:
+		soc_info.name = "RTL8392";
+		soc_info.family = RTL8390_FAMILY_ID;
+		break;
+	case 0x8393:
+		soc_info.name = "RTL8393";
+		soc_info.family = RTL8390_FAMILY_ID;
+		break;
+	case 0x9301:
+		soc_info.name = "RTL9301";
+		soc_info.family = RTL9300_FAMILY_ID;
+		break;
+	case 0x9302:
+		identify_rtl9302();
+		soc_info.family = RTL9300_FAMILY_ID;
+		break;
+	case 0x9313:
+		soc_info.name = "RTL9313";
+		soc_info.family = RTL9310_FAMILY_ID;
+		break;
+	default:
+		soc_info.name = "DEFAULT";
+		soc_info.family = 0;
+	}
+
+	pr_info("SoC Type: %s\n", get_system_type());
+
+	prom_init_cmdline();
+}

target/linux/realtek/files-5.10/arch/mips/rtl838x/setup.c

@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Setup for the Realtek RTL838X SoC:
+ *	Memory, Timer and Serial
+ *
+ * Copyright (C) 2020 B. Koblitz
+ * based on the original BSP by
+ * Copyright (C) 2006-2012 Tony Wu (tonywu@realtek.com)
+ *
+ */
+
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/of_fdt.h>
+
+#include <asm/addrspace.h>
+#include <asm/io.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/prom.h>
+#include <asm/smp-ops.h>
+
+#include "mach-rtl83xx.h"
+
+extern struct rtl83xx_soc_info soc_info;
+
+u32 pll_reset_value;
+
+static void rtl838x_restart(char *command)
+{
+	u32 pll = sw_r32(RTL838X_PLL_CML_CTRL);
+
+	pr_info("System restart.\n");
+	pr_info("PLL control register: %x, applying reset value %x\n",
+		pll, pll_reset_value);
+
+	sw_w32(3, RTL838X_INT_RW_CTRL);
+	sw_w32(pll_reset_value, RTL838X_PLL_CML_CTRL);
+	sw_w32(0, RTL838X_INT_RW_CTRL);
+
+	/* Reset Global Control1 Register */
+	sw_w32(1, RTL838X_RST_GLB_CTRL_1);
+}
+
+static void rtl839x_restart(char *command)
+{
+	/* SoC reset vector (in flash memory): on RTL839x platform preferred way to reset */
+	void (*f)(void) = (void *) 0xbfc00000;
+
+	pr_info("System restart.\n");
+	/* Reset SoC */
+	sw_w32(0xFFFFFFFF, RTL839X_RST_GLB_CTRL);
+	/* and call reset vector */
+	f();
+	/* If this fails, halt the CPU */
+	while
+		(1);
+}
+
+static void rtl930x_restart(char *command)
+{
+	pr_info("System restart.\n");
+	sw_w32(0x1, RTL930X_RST_GLB_CTRL_0);
+	while
+		(1);
+}
+
+static void rtl931x_restart(char *command)
+{
+	u32 v;
+
+	pr_info("System restart.\n");
+	sw_w32(1, RTL931X_RST_GLB_CTRL);
+	v = sw_r32(RTL931X_RST_GLB_CTRL);
+	sw_w32(0x101, RTL931X_RST_GLB_CTRL);
+	msleep(15);
+	sw_w32(v, RTL931X_RST_GLB_CTRL);
+	msleep(15);
+	sw_w32(0x101, RTL931X_RST_GLB_CTRL);
+}
+
+static void rtl838x_halt(void)
+{
+	pr_info("System halted.\n");
+	while
+		(1);
+}
+
+static void __init rtl838x_setup(void)
+{
+	pr_info("Registering _machine_restart\n");
+	_machine_restart = rtl838x_restart;
+	_machine_halt = rtl838x_halt;
+
+	/* This PLL value needs to be restored before a reset and will then be
+	 * preserved over a SoC reset. A wrong value prevents the SoC from
+	 * connecting to the SPI flash controller at boot and reading the
+	 * reset routine */
+	pll_reset_value = sw_r32(RTL838X_PLL_CML_CTRL);
+
+	/* Setup System LED. Bit 15 then allows to toggle it */
+	sw_w32_mask(0, 3 << 16, RTL838X_LED_GLB_CTRL);
+}
+
+static void __init rtl839x_setup(void)
+{
+	pr_info("Registering _machine_restart\n");
+	_machine_restart = rtl839x_restart;
+	_machine_halt = rtl838x_halt;
+
+	/* Setup System LED. Bit 14 of RTL839X_LED_GLB_CTRL then allows to toggle it */
+	sw_w32_mask(0, 3 << 15, RTL839X_LED_GLB_CTRL);
+}
+
+static void __init rtl930x_setup(void)
+{
+	pr_info("Registering _machine_restart\n");
+	_machine_restart = rtl930x_restart;
+	_machine_halt = rtl838x_halt;
+
+	if (soc_info.id == 0x9302)
+		sw_w32_mask(0, 3 << 13, RTL9302_LED_GLB_CTRL);
+	else
+		sw_w32_mask(0, 3 << 13, RTL930X_LED_GLB_CTRL);
+}
+
+static void __init rtl931x_setup(void)
+{
+	pr_info("Registering _machine_restart\n");
+	_machine_restart = rtl931x_restart;
+	_machine_halt = rtl838x_halt;
+	sw_w32_mask(0, 3 << 12, RTL931X_LED_GLB_CTRL);
+}
+
+void __init plat_mem_setup(void)
+{
+	void *dtb;
+
+	set_io_port_base(KSEG1);
+	_machine_restart = rtl838x_restart;
+
+	if (fw_passed_dtb) /* UHI interface */
+		dtb = (void *)fw_passed_dtb;
+	else if (__dtb_start != __dtb_end)
+		dtb = (void *)__dtb_start;
+	else
+		panic("no dtb found");
+
+	/*
+	 * Load the devicetree. This causes the chosen node to be
+	 * parsed resulting in our memory appearing
+	 */
+	__dt_setup_arch(dtb);
+
+	switch (soc_info.family) {
+	case RTL8380_FAMILY_ID:
+		rtl838x_setup();
+		break;
+	case RTL8390_FAMILY_ID:
+		rtl839x_setup();
+		break;
+	case RTL9300_FAMILY_ID:
+		rtl930x_setup();
+		break;
+	case RTL9310_FAMILY_ID:
+		rtl931x_setup();
+		break;
+	}
+}
+
+void __init plat_time_init(void)
+{
+	struct device_node *np;
+	u32 freq = 500000000;
+
+	of_clk_init(NULL);
+	timer_probe();
+
+	np = of_find_node_by_name(NULL, "cpus");
+	if (!np) {
+		pr_err("Missing 'cpus' DT node, using default frequency.");
+	} else {
+		if (of_property_read_u32(np, "frequency", &freq) < 0)
+			pr_err("No 'frequency' property in DT, using default.");
+		else
+			pr_info("CPU frequency from device tree: %dMHz", freq / 1000000);
+		of_node_put(np);
+	}
+
+	mips_hpt_frequency = freq / 2;
+}

target/linux/realtek/files-5.10/drivers/clocksource/timer-rtl9300.c

@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/clockchips.h>
+#include <linux/init.h>
+#include <asm/time.h>
+#include <linux/interrupt.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
+#include "timer-of.h"
+
+#include <mach-rtl83xx.h>
+
+/* 
+ * Timer registers
+ * the RTL9300/9310 SoCs have 6 timers, each register block 0x10 apart
+ */
+#define RTL9300_TC_DATA		0x0
+#define RTL9300_TC_CNT		0x4
+#define RTL9300_TC_CTRL		0x8
+#define RTL9300_TC_CTRL_MODE	BIT(24)
+#define RTL9300_TC_CTRL_EN	BIT(28)
+#define RTL9300_TC_INT		0xc
+#define RTL9300_TC_INT_IP	BIT(16)
+#define RTL9300_TC_INT_IE	BIT(20)
+
+// Clocksource is using timer 0, clock event uses timer 1
+#define TIMER_CLK_SRC		0
+#define TIMER_CLK_EVT		1
+#define TIMER_BLK_EVT		(TIMER_CLK_EVT << 4)
+
+// Timer modes
+#define TIMER_MODE_REPEAT	1
+#define TIMER_MODE_ONCE		0
+
+// Minimum divider is 2
+#define DIVISOR_RTL9300		2
+
+#define N_BITS			28
+
+static void __iomem *rtl9300_sched_reg __read_mostly;
+
+static u64 notrace rtl9300_sched_clock_read(void)
+{
+/*	pr_info("In %s: %x\n", __func__, readl_relaxed(rtl9300_sched_reg));
+	dump_stack();*/
+	return readl_relaxed(rtl9300_sched_reg);
+}
+
+static irqreturn_t rtl9300_timer_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *clk = dev_id;
+	struct timer_of *to = to_timer_of(clk);
+	u32 v = readl(timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_INT);
+
+	// Acknowledge the IRQ
+	v |= RTL9300_TC_INT_IP;
+	writel(v, timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_INT);
+
+	clk->event_handler(clk);
+	return IRQ_HANDLED;
+}
+
+static void rtl9300_timer_stop(struct timer_of *to)
+{
+	u32 v;
+
+	writel(0, timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_CTRL);
+
+	// Acknowledge possibly pending IRQ
+	v = readl(timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_INT);
+	if (v & RTL9300_TC_INT_IP)
+		writel(v, timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_INT);
+}
+
+static void rtl9300_timer_start(struct timer_of *to, int timer, bool periodic)
+{
+	u32 v = (periodic ? RTL9300_TC_CTRL_MODE : 0) | RTL9300_TC_CTRL_EN | DIVISOR_RTL9300;
+	writel(v, timer_of_base(to) + timer * 0x10 + RTL9300_TC_CTRL);
+}
+
+static int rtl9300_set_next_event(unsigned long delta, struct clock_event_device *clk)
+{
+	struct timer_of *to = to_timer_of(clk);
+
+	rtl9300_timer_stop(to);
+	writel(delta, timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_DATA);
+	rtl9300_timer_start(to, TIMER_CLK_EVT, TIMER_MODE_ONCE);
+	return 0;
+}
+
+static int rtl9300_set_state_periodic(struct clock_event_device *clk)
+{
+	struct timer_of *to = to_timer_of(clk);
+
+	rtl9300_timer_stop(to);
+	writel(to->of_clk.period, timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_DATA);
+	rtl9300_timer_start(to, TIMER_CLK_EVT, TIMER_MODE_REPEAT);
+	return 0;
+}
+
+static int rtl9300_set_state_oneshot(struct clock_event_device *clk)
+{
+	struct timer_of *to = to_timer_of(clk);
+
+	rtl9300_timer_stop(to);
+	writel(to->of_clk.period, timer_of_base(to) + TIMER_BLK_EVT + RTL9300_TC_DATA);
+	rtl9300_timer_start(to, TIMER_CLK_EVT, TIMER_MODE_ONCE);
+	return 0;
+}
+
+static int rtl9300_set_state_shutdown(struct clock_event_device *clk)
+{
+	struct timer_of *to = to_timer_of(clk);
+
+	rtl9300_timer_stop(to);
+	return 0;
+}
+
+static struct timer_of t_of = {
+	.flags = TIMER_OF_BASE | TIMER_OF_IRQ | TIMER_OF_CLOCK,
+
+	.clkevt = {
+		.name = "rtl9300_timer",
+		.rating = 350,
+		.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+		.set_next_event	= rtl9300_set_next_event,
+		.set_state_oneshot = rtl9300_set_state_oneshot,
+		.set_state_periodic = rtl9300_set_state_periodic,
+		.set_state_shutdown = rtl9300_set_state_shutdown,
+	},
+
+	.of_irq = {
+		.name = "ostimer",
+		.handler = rtl9300_timer_interrupt,
+		.flags = IRQF_TIMER,
+	},
+};
+
+static void __init rtl9300_timer_setup(u8 timer)
+{
+	u32 v;
+
+	// Disable timer
+	writel(0, timer_of_base(&t_of) + 0x10 * timer + RTL9300_TC_CTRL);
+
+	// Acknowledge possibly pending IRQ
+	v = readl(timer_of_base(&t_of) + 0x10 * timer + RTL9300_TC_INT);
+	if (v & RTL9300_TC_INT_IP)
+		writel(v, timer_of_base(&t_of) + 0x10 * timer + RTL9300_TC_INT);
+
+	// Setup maximum period (for use as clock-source)
+	writel(0x0fffffff, timer_of_base(&t_of) + 0x10 * timer + RTL9300_TC_DATA);
+}
+
+
+static int __init rtl9300_timer_init(struct device_node *node)
+{
+	int err = 0;
+	unsigned long rate;
+
+	pr_info("%s: setting up timer\n", __func__);
+
+	err = timer_of_init(node, &t_of);
+	if (err)
+		return err;
+
+	rate = timer_of_rate(&t_of) / DIVISOR_RTL9300;
+	pr_info("Frequency in dts: %ld, my rate is %ld, period %ld\n",
+		timer_of_rate(&t_of), rate, timer_of_period(&t_of));
+	pr_info("With base %08x IRQ: %d\n", (u32)timer_of_base(&t_of), timer_of_irq(&t_of));
+
+	// Configure clock source and register it for scheduling
+	rtl9300_timer_setup(TIMER_CLK_SRC);
+	rtl9300_timer_start(&t_of, TIMER_CLK_SRC, TIMER_MODE_REPEAT);
+
+	rtl9300_sched_reg = timer_of_base(&t_of) + TIMER_CLK_SRC * 0x10 + RTL9300_TC_CNT;
+
+	err = clocksource_mmio_init(rtl9300_sched_reg, node->name, rate , 100, N_BITS,
+				    clocksource_mmio_readl_up);
+	if (err)
+		return err;
+
+	sched_clock_register(rtl9300_sched_clock_read, N_BITS, rate);
+
+	// Configure clock event source
+	rtl9300_timer_setup(TIMER_CLK_EVT);
+	clockevents_config_and_register(&t_of.clkevt, rate, 100, 0x0fffffff);
+
+	// Enable interrupt
+	writel(RTL9300_TC_INT_IE, timer_of_base(&t_of) + TIMER_BLK_EVT + RTL9300_TC_INT);
+
+	return err;
+}
+
+TIMER_OF_DECLARE(rtl9300_timer, "realtek,rtl9300-timer", rtl9300_timer_init);

target/linux/realtek/files-5.10/drivers/gpio/gpio-rtl8231.c

@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/gpio/driver.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+
+/* RTL8231 registers for LED control */
+#define RTL8231_LED_FUNC0			0x0000
+#define RTL8231_GPIO_PIN_SEL(gpio)		((0x0002) + ((gpio) >> 4))
+#define RTL8231_GPIO_DIR(gpio)			((0x0005) + ((gpio) >> 4))
+#define RTL8231_GPIO_DATA(gpio)			((0x001C) + ((gpio) >> 4))
+
+#define USEC_TIMEOUT 5000
+
+struct rtl8231_gpios {
+	struct gpio_chip gc;
+	struct device *dev;
+	u32 id;
+	int smi_bus_id;
+	u16 reg_shadow[0x20];
+	u32 reg_cached;
+	int ext_gpio_indrt_access;
+};
+
+extern struct mutex smi_lock;
+extern struct rtl83xx_soc_info soc_info;
+
+static u32 rtl8231_read(struct rtl8231_gpios *gpios, u32 reg)
+{
+	u32 t = 0, n = 0;
+	u8 bus_id = gpios->smi_bus_id;
+
+	reg &= 0x1f;
+	bus_id &= 0x1f;
+
+	/* Calculate read register address */
+	t = (bus_id << 2) | (reg << 7);
+
+	/* Set execution bit: cleared when operation completed */
+	t |= 1;
+
+	// Start execution
+	sw_w32(t, gpios->ext_gpio_indrt_access);
+	do {
+		udelay(1);
+		t = sw_r32(gpios->ext_gpio_indrt_access);
+		n++;
+	} while ((t & 1) && (n < USEC_TIMEOUT));
+
+	if (n >= USEC_TIMEOUT)
+		return 0x80000000;
+	
+	pr_debug("%s: %x, %x, %x\n", __func__, bus_id, reg, (t & 0xffff0000) >> 16);
+
+	return (t & 0xffff0000) >> 16;
+}
+
+static int rtl8231_write(struct rtl8231_gpios *gpios, u32 reg, u32 data)
+{
+	u32 t = 0, n = 0;
+	u8 bus_id = gpios->smi_bus_id;
+
+	pr_debug("%s: %x, %x, %x\n", __func__, bus_id, reg, data);
+	reg &= 0x1f;
+	bus_id &= 0x1f;
+
+	t = (bus_id << 2) | (reg << 7) | (data << 16);
+	/* Set write bit */
+	t |= 2;
+
+	/* Set execution bit: cleared when operation completed */
+	t |= 1;
+
+	// Start execution
+	sw_w32(t, gpios->ext_gpio_indrt_access);
+	do {
+		udelay(1);
+		t = sw_r32(gpios->ext_gpio_indrt_access);
+	} while ((t & 1) && (n < USEC_TIMEOUT));
+
+	if (n >= USEC_TIMEOUT)
+		return -1;
+
+	return 0;
+}
+
+static u32 rtl8231_read_cached(struct rtl8231_gpios *gpios, u32 reg)
+{
+	if (reg > 0x1f)
+		return 0;
+
+	if (gpios->reg_cached & (1 << reg))
+		return gpios->reg_shadow[reg];
+
+	return rtl8231_read(gpios, reg);
+}
+
+/* Set Direction of the RTL8231 pin:
+ * dir 1: input
+ * dir 0: output
+ */
+static int rtl8231_pin_dir(struct rtl8231_gpios *gpios, u32 gpio, u32 dir)
+{
+	u32 v;
+	int pin_sel_addr = RTL8231_GPIO_PIN_SEL(gpio);
+	int pin_dir_addr = RTL8231_GPIO_DIR(gpio);
+	int dpin = gpio % 16;
+
+	if (gpio > 31) {
+		pr_debug("WARNING: HIGH pin\n");
+		dpin += 5;
+		pin_dir_addr = pin_sel_addr;
+	}
+
+	v = rtl8231_read_cached(gpios, pin_dir_addr);
+	if (v & 0x80000000) {
+		pr_err("Error reading RTL8231\n");
+		return -1;
+	}
+
+	v = (v & ~(1 << dpin)) | (dir << dpin);
+	rtl8231_write(gpios, pin_dir_addr, v);
+	gpios->reg_shadow[pin_dir_addr] = v;
+	gpios->reg_cached |= 1 << pin_dir_addr;
+	return 0;
+}
+
+static int rtl8231_pin_dir_get(struct rtl8231_gpios *gpios, u32 gpio, u32 *dir)
+{
+	/* dir 1: input
+	 * dir 0: output
+	 */
+
+	u32  v;
+	int pin_dir_addr = RTL8231_GPIO_DIR(gpio);
+	int pin = gpio % 16;
+
+	if (gpio > 31) {
+		pin_dir_addr = RTL8231_GPIO_PIN_SEL(gpio);
+		pin += 5;
+	}
+
+	v = rtl8231_read(gpios, pin_dir_addr);
+	if (v & (1 << pin))
+		*dir = 1;
+	else
+		*dir = 0;
+	return 0;
+}
+
+static int rtl8231_pin_set(struct rtl8231_gpios *gpios, u32 gpio, u32 data)
+{
+	u32 v = rtl8231_read(gpios, RTL8231_GPIO_DATA(gpio));
+
+	pr_debug("%s: %d to %d\n", __func__, gpio, data);
+	if (v & 0x80000000) {
+		pr_err("Error reading RTL8231\n");
+		return -1;
+	}
+	v = (v & ~(1 << (gpio % 16))) | (data << (gpio % 16));
+	rtl8231_write(gpios, RTL8231_GPIO_DATA(gpio), v);
+	gpios->reg_shadow[RTL8231_GPIO_DATA(gpio)] = v;
+	gpios->reg_cached |= 1 << RTL8231_GPIO_DATA(gpio);
+	return 0;
+}
+
+static int rtl8231_pin_get(struct rtl8231_gpios *gpios, u32 gpio, u16 *state)
+{
+	u32 v = rtl8231_read(gpios, RTL8231_GPIO_DATA(gpio));
+
+	if (v & 0x80000000) {
+		pr_err("Error reading RTL8231\n");
+		return -1;
+	}
+
+	*state = v & 0xffff;
+	return 0;
+}
+
+static int rtl8231_direction_input(struct gpio_chip *gc, unsigned int offset)
+{
+	int err;
+	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
+
+	pr_debug("%s: %d\n", __func__, offset);
+	mutex_lock(&smi_lock);
+	err = rtl8231_pin_dir(gpios, offset, 1);
+	mutex_unlock(&smi_lock);
+	return err;
+}
+
+static int rtl8231_direction_output(struct gpio_chip *gc, unsigned int offset, int value)
+{
+	int err;
+	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
+
+	pr_debug("%s: %d\n", __func__, offset);
+	mutex_lock(&smi_lock);
+	err = rtl8231_pin_dir(gpios, offset, 0);
+	mutex_unlock(&smi_lock);
+	if (!err)
+		err = rtl8231_pin_set(gpios, offset, value);
+	return err;
+}
+
+static int rtl8231_get_direction(struct gpio_chip *gc, unsigned int offset)
+{
+	u32 v = 0;
+	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
+
+	pr_debug("%s: %d\n", __func__, offset);
+	mutex_lock(&smi_lock);
+	rtl8231_pin_dir_get(gpios, offset, &v);
+	mutex_unlock(&smi_lock);
+	return v;
+}
+
+static int rtl8231_gpio_get(struct gpio_chip *gc, unsigned int offset)
+{
+	u16 state = 0;
+	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
+
+	mutex_lock(&smi_lock);
+	rtl8231_pin_get(gpios, offset, &state);
+	mutex_unlock(&smi_lock);
+	if (state & (1 << (offset % 16)))
+		return 1;
+	return 0;
+}
+
+void rtl8231_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
+{
+	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
+
+	rtl8231_pin_set(gpios, offset, value);
+}
+
+int rtl8231_init(struct rtl8231_gpios *gpios)
+{
+	u32 v;
+
+	pr_info("%s called, MDIO bus ID: %d\n", __func__, gpios->smi_bus_id);
+
+	gpios->reg_cached = 0;
+
+	if (soc_info.family == RTL8390_FAMILY_ID) {
+		// RTL8390: Enable external gpio in global led control register
+		sw_w32_mask(0x7 << 18, 0x4 << 18, RTL839X_LED_GLB_CTRL);
+	} else if (soc_info.family == RTL8380_FAMILY_ID) {
+		// RTL8380: Enable RTL8231 indirect access mode
+		sw_w32_mask(0, 1, RTL838X_EXTRA_GPIO_CTRL);
+		sw_w32_mask(3, 1, RTL838X_DMY_REG5);
+	}
+
+	/* Select GPIO functionality for pins 0-34 */
+	rtl8231_write(gpios, RTL8231_GPIO_PIN_SEL(0), 0xffff);
+	rtl8231_write(gpios, RTL8231_GPIO_PIN_SEL(16), 0xffff);
+	v = rtl8231_read(gpios, RTL8231_GPIO_PIN_SEL(32));
+	rtl8231_write(gpios, RTL8231_GPIO_PIN_SEL(32), v | 0x7);
+
+	return 0;
+}
+
+static const struct of_device_id rtl8231_gpio_of_match[] = {
+	{ .compatible = "realtek,rtl8231-gpio" },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, rtl8231_gpio_of_match);
+
+static int rtl8231_gpio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct rtl8231_gpios *gpios;
+	int err;
+	u32 indirect_bus_id;
+
+	pr_info("Probing RTL8231 GPIOs\n");
+
+	if (!np) {
+		dev_err(&pdev->dev, "No DT found\n");
+		return -EINVAL;
+	}
+
+	gpios = devm_kzalloc(dev, sizeof(*gpios), GFP_KERNEL);
+	if (!gpios)
+		return -ENOMEM;
+
+	gpios->id = soc_info.id;
+	if (soc_info.family == RTL8380_FAMILY_ID) {
+		gpios->ext_gpio_indrt_access = RTL838X_EXT_GPIO_INDRT_ACCESS;
+	}
+
+	if (soc_info.family == RTL8390_FAMILY_ID) {
+		gpios->ext_gpio_indrt_access = RTL839X_EXT_GPIO_INDRT_ACCESS;
+	}
+
+	/*
+	 * We use a default MDIO bus ID for the 8231 of 0, which can be overriden
+	 * by the indirect-access-bus-id property in the dts.
+	 */
+	gpios->smi_bus_id = 0;
+	of_property_read_u32(np, "indirect-access-bus-id", &indirect_bus_id);
+	gpios->smi_bus_id = indirect_bus_id;
+
+	rtl8231_init(gpios);
+
+	gpios->dev = dev;
+	gpios->gc.base = 160;
+	gpios->gc.ngpio = 36;
+	gpios->gc.label = "rtl8231";
+	gpios->gc.parent = dev;
+	gpios->gc.owner = THIS_MODULE;
+	gpios->gc.can_sleep = true;
+
+	gpios->gc.direction_input = rtl8231_direction_input;
+	gpios->gc.direction_output = rtl8231_direction_output;
+	gpios->gc.set = rtl8231_gpio_set;
+	gpios->gc.get = rtl8231_gpio_get;
+	gpios->gc.get_direction = rtl8231_get_direction;
+
+	err = devm_gpiochip_add_data(dev, &gpios->gc, gpios);
+	return err;
+}
+
+static struct platform_driver rtl8231_gpio_driver = {
+	.driver = {
+		.name = "rtl8231-gpio",
+		.of_match_table	= rtl8231_gpio_of_match,
+	},
+	.probe = rtl8231_gpio_probe,
+};
+
+module_platform_driver(rtl8231_gpio_driver);
+
+MODULE_DESCRIPTION("Realtek RTL8231 GPIO expansion chip support");
+MODULE_LICENSE("GPL v2");

target/linux/realtek/files-5.10/drivers/gpio/gpio-rtl838x.c

@@ -0,0 +1,425 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/gpio/driver.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+
+/* RTL8231 registers for LED control */
+#define RTL8231_LED_FUNC0			0x0000
+#define RTL8231_GPIO_PIN_SEL(gpio)		((0x0002) + ((gpio) >> 4))
+#define RTL8231_GPIO_DIR(gpio)			((0x0005) + ((gpio) >> 4))
+#define RTL8231_GPIO_DATA(gpio)			((0x001C) + ((gpio) >> 4))
+
+struct rtl838x_gpios {
+	struct gpio_chip gc;
+	u32 id;
+	struct device *dev;
+	int irq;
+	int num_leds;
+	int min_led;
+	int leds_per_port;
+	u32 led_mode;
+	int led_glb_ctrl;
+	int led_sw_ctrl;
+	int (*led_sw_p_ctrl)(int port);
+	int (*led_sw_p_en_ctrl)(int port);
+	int (*ext_gpio_dir)(int i);
+	int (*ext_gpio_data)(int i);
+};
+
+inline int rtl838x_ext_gpio_dir(int i)
+{
+	return RTL838X_EXT_GPIO_DIR + ((i >>5) << 2);
+}
+
+inline int rtl839x_ext_gpio_dir(int i)
+{
+	return RTL839X_EXT_GPIO_DIR + ((i >>5) << 2);
+}
+
+inline int rtl838x_ext_gpio_data(int i)
+{
+	return RTL838X_EXT_GPIO_DATA + ((i >>5) << 2);
+}
+
+inline int rtl839x_ext_gpio_data(int i)
+{
+	return RTL839X_EXT_GPIO_DATA + ((i >>5) << 2);
+}
+
+inline int rtl838x_led_sw_p_ctrl(int p)
+{
+	return RTL838X_LED_SW_P_CTRL + (p << 2);
+}
+
+inline int rtl839x_led_sw_p_ctrl(int p)
+{
+	return RTL839X_LED_SW_P_CTRL + (p << 2);
+}
+
+inline int rtl838x_led_sw_p_en_ctrl(int p)
+{
+	return RTL838X_LED_SW_P_EN_CTRL + ((p / 10) << 2);
+}
+
+inline int rtl839x_led_sw_p_en_ctrl(int p)
+{
+	return RTL839X_LED_SW_P_EN_CTRL + ((p / 10) << 2);
+}
+
+extern struct mutex smi_lock;
+extern struct rtl83xx_soc_info soc_info;
+
+
+void rtl838x_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
+{
+	int bit;
+	struct rtl838x_gpios *gpios = gpiochip_get_data(gc);
+
+	pr_debug("rtl838x_set: %d, value: %d\n", offset, value);
+	/* Internal GPIO of the RTL8380 */
+	if (offset < 32) {
+		if (value)
+			rtl83xx_w32_mask(0, BIT(offset), RTL838X_GPIO_PABC_DATA);
+		else
+			rtl83xx_w32_mask(BIT(offset), 0, RTL838X_GPIO_PABC_DATA);
+	}
+
+	/* LED driver for PWR and SYS */
+	if (offset >= 32 && offset < 64) {
+		bit = offset - 32;
+		if (value)
+			sw_w32_mask(0, BIT(bit), gpios->led_glb_ctrl);
+		else
+			sw_w32_mask(BIT(bit), 0, gpios->led_glb_ctrl);
+		return;
+	}
+
+	bit = (offset - 64) % 32;
+	/* First Port-LED */
+	if (offset >= 64 && offset < 96
+	   && offset >= (64 + gpios->min_led)
+	   && offset < (64 + gpios->min_led + gpios->num_leds)) {
+		if (value)
+			sw_w32_mask(7, 5, gpios->led_sw_p_ctrl(bit));
+		else
+			sw_w32_mask(7, 0, gpios->led_sw_p_ctrl(bit));
+	}
+	if (offset >= 96 && offset < 128
+	    && offset >= (96 + gpios->min_led)
+	    && offset < (96 + gpios->min_led + gpios->num_leds)) {
+		if (value)
+			sw_w32_mask(7 << 3, 5 << 3, gpios->led_sw_p_ctrl(bit));
+		else
+			sw_w32_mask(7 << 3, 0, gpios->led_sw_p_ctrl(bit));
+	}
+	if (offset >= 128 && offset < 160
+	    && offset >= (128 + gpios->min_led)
+	    && offset < (128 + gpios->min_led + gpios->num_leds)) {
+		if (value)
+			sw_w32_mask(7 << 6, 5 << 6, gpios->led_sw_p_ctrl(bit));
+		else
+			sw_w32_mask(7 << 6, 0, gpios->led_sw_p_ctrl(bit));
+	}
+	__asm__ volatile ("sync");
+}
+
+static int rtl838x_direction_input(struct gpio_chip *gc, unsigned int offset)
+{
+	pr_debug("%s: %d\n", __func__, offset);
+
+	if (offset < 32) {
+		rtl83xx_w32_mask(BIT(offset), 0, RTL838X_GPIO_PABC_DIR);
+		return 0;
+	}
+
+	/* Internal LED driver does not support input */
+	return -ENOTSUPP;
+}
+
+static int rtl838x_direction_output(struct gpio_chip *gc, unsigned int offset, int value)
+{
+	pr_debug("%s: %d\n", __func__, offset);
+	if (offset < 32)
+		rtl83xx_w32_mask(0, BIT(offset), RTL838X_GPIO_PABC_DIR);
+	rtl838x_gpio_set(gc, offset, value);
+
+	/* LED for PWR and SYS driver is direction output by default */
+	return 0;
+}
+
+static int rtl838x_get_direction(struct gpio_chip *gc, unsigned int offset)
+{
+	u32 v = 0;
+
+	pr_debug("%s: %d\n", __func__, offset);
+	if (offset < 32) {
+		v = rtl83xx_r32(RTL838X_GPIO_PABC_DIR);
+		if (v & BIT(offset))
+			return 0;
+		return 1;
+	}
+
+	/* LED driver for PWR and SYS is direction output by default */
+	if (offset >= 32 && offset < 64)
+		return 0;
+
+	return 0;
+}
+
+static int rtl838x_gpio_get(struct gpio_chip *gc, unsigned int offset)
+{
+	u32 v;
+	struct rtl838x_gpios *gpios = gpiochip_get_data(gc);
+
+	pr_debug("%s: %d\n", __func__, offset);
+
+	/* Internal GPIO of the RTL8380 */
+	if (offset < 32) {
+		v = rtl83xx_r32(RTL838X_GPIO_PABC_DATA);
+		if (v & BIT(offset))
+			return 1;
+		return 0;
+	}
+
+	/* LED driver for PWR and SYS */
+	if (offset >= 32 && offset < 64) {
+		v = sw_r32(gpios->led_glb_ctrl);
+		if (v & BIT(offset-32))
+			return 1;
+		return 0;
+	}
+
+/* BUG:
+	bit = (offset - 64) % 32;
+	if (offset >= 64 && offset < 96) {
+		if (sw_r32(RTL838X_LED1_SW_P_EN_CTRL) & BIT(bit))
+			return 1;
+		return 0;
+	}
+	if (offset >= 96 && offset < 128) {
+		if (sw_r32(RTL838X_LED1_SW_P_EN_CTRL) & BIT(bit))
+			return 1;
+		return 0;
+	}
+	if (offset >= 128 && offset < 160) {
+		if (sw_r32(RTL838X_LED1_SW_P_EN_CTRL) & BIT(bit))
+			return 1;
+		return 0;
+	}
+	*/ 
+	return 0;
+}
+
+void rtl8380_led_test(struct rtl838x_gpios *gpios, u32 mask)
+{
+	int i;
+	u32 led_gbl = sw_r32(gpios->led_glb_ctrl);
+	u32 mode_sel, led_p_en;
+
+	if (soc_info.family == RTL8380_FAMILY_ID) {
+		mode_sel = sw_r32(RTL838X_LED_MODE_SEL);
+		led_p_en = sw_r32(RTL838X_LED_P_EN_CTRL);
+	}
+
+	/* 2 Leds for ports 0-23 and 24-27, 3 would be 0x7 */
+	sw_w32_mask(0x3f, 0x3 | (0x3 << 3), gpios->led_glb_ctrl);
+
+	if(soc_info.family == RTL8380_FAMILY_ID) {
+		/* Enable all leds */
+		sw_w32(0xFFFFFFF, RTL838X_LED_P_EN_CTRL);
+	}
+	/* Enable software control of all leds */
+	sw_w32(0xFFFFFFF, gpios->led_sw_ctrl);
+	sw_w32(0xFFFFFFF, gpios->led_sw_p_en_ctrl(0));
+	sw_w32(0xFFFFFFF, gpios->led_sw_p_en_ctrl(10));
+	sw_w32(0x0000000, gpios->led_sw_p_en_ctrl(20));
+
+	for (i = 0; i < 28; i++) {
+		if (mask & BIT(i))
+			sw_w32(5 | (5 << 3) | (5 << 6), gpios->led_sw_p_ctrl(i));
+	}
+	msleep(3000);
+
+	if (soc_info.family == RTL8380_FAMILY_ID)
+		sw_w32(led_p_en, RTL838X_LED_P_EN_CTRL);
+	/* Disable software control of all leds */
+	sw_w32(0x0000000, gpios->led_sw_ctrl);
+	sw_w32(0x0000000, gpios->led_sw_p_en_ctrl(0));
+	sw_w32(0x0000000, gpios->led_sw_p_en_ctrl(10));
+	sw_w32(0x0000000, gpios->led_sw_p_en_ctrl(20));
+
+	sw_w32(led_gbl, gpios->led_glb_ctrl);
+	if (soc_info.family == RTL8380_FAMILY_ID)
+		sw_w32(mode_sel, RTL838X_LED_MODE_SEL);
+}
+
+void take_port_leds(struct rtl838x_gpios *gpios)
+{
+	int leds_per_port = gpios->leds_per_port;
+	int mode = gpios->led_mode;
+
+	pr_info("%s, %d, %x\n", __func__, leds_per_port, mode);
+	pr_debug("Bootloader settings: %x %x %x\n",
+		sw_r32(gpios->led_sw_p_en_ctrl(0)),
+		sw_r32(gpios->led_sw_p_en_ctrl(10)),
+		sw_r32(gpios->led_sw_p_en_ctrl(20))
+	);
+
+	if (soc_info.family == RTL8380_FAMILY_ID) {
+		pr_debug("led glb: %x, sel %x\n",
+			sw_r32(gpios->led_glb_ctrl), sw_r32(RTL838X_LED_MODE_SEL));
+		pr_debug("RTL838X_LED_P_EN_CTRL: %x", sw_r32(RTL838X_LED_P_EN_CTRL));
+		pr_debug("RTL838X_LED_MODE_CTRL: %x", sw_r32(RTL838X_LED_MODE_CTRL));
+		sw_w32_mask(3, 0, RTL838X_LED_MODE_SEL);
+		sw_w32(mode, RTL838X_LED_MODE_CTRL);
+	}
+
+	/* Enable software control of all leds */
+	sw_w32(0xFFFFFFF, gpios->led_sw_ctrl);
+	if (soc_info.family == RTL8380_FAMILY_ID)
+		sw_w32(0xFFFFFFF, RTL838X_LED_P_EN_CTRL);
+
+	sw_w32(0x0000000, gpios->led_sw_p_en_ctrl(0));
+	sw_w32(0x0000000, gpios->led_sw_p_en_ctrl(10));
+	sw_w32(0x0000000, gpios->led_sw_p_en_ctrl(20));
+
+	sw_w32_mask(0x3f, 0, gpios->led_glb_ctrl);
+	switch (leds_per_port) {
+	case 3:
+		sw_w32_mask(0, 0x7 | (0x7 << 3), gpios->led_glb_ctrl);
+		sw_w32(0xFFFFFFF, gpios->led_sw_p_en_ctrl(20));
+		/* FALLTHRU */
+	case 2:
+		sw_w32_mask(0, 0x3 | (0x3 << 3), gpios->led_glb_ctrl);
+		sw_w32(0xFFFFFFF, gpios->led_sw_p_en_ctrl(10));
+		/* FALLTHRU */
+	case 1:
+		sw_w32_mask(0, 0x1 | (0x1 << 3), gpios->led_glb_ctrl);
+		sw_w32(0xFFFFFFF, gpios->led_sw_p_en_ctrl(0));
+		break;
+	default:
+		pr_err("No LEDS configured for software control\n");
+	}
+}
+
+static const struct of_device_id rtl838x_gpio_of_match[] = {
+	{ .compatible = "realtek,rtl838x-gpio" },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, rtl838x_gpio_of_match);
+
+static int rtl838x_gpio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct rtl838x_gpios *gpios;
+	int err;
+
+	pr_info("Probing RTL838X GPIOs\n");
+
+	if (!np) {
+		dev_err(&pdev->dev, "No DT found\n");
+		return -EINVAL;
+	}
+
+	gpios = devm_kzalloc(dev, sizeof(*gpios), GFP_KERNEL);
+	if (!gpios)
+		return -ENOMEM;
+
+	gpios->id = soc_info.id;
+
+	switch (gpios->id) {
+	case 0x8332:
+		pr_debug("Found RTL8332M GPIO\n");
+		break;
+	case 0x8380:
+		pr_debug("Found RTL8380M GPIO\n");
+		break;
+	case 0x8381:
+		pr_debug("Found RTL8381M GPIO\n");
+		break;
+	case 0x8382:
+		pr_debug("Found RTL8382M GPIO\n");
+		break;
+	case 0x8391:
+		pr_debug("Found RTL8391 GPIO\n");
+		break;
+	case 0x8393:
+		pr_debug("Found RTL8393 GPIO\n");
+		break;
+	default:
+		pr_err("Unknown GPIO chip id (%04x)\n", gpios->id);
+		return -ENODEV;
+	}
+
+	if (soc_info.family == RTL8380_FAMILY_ID) {
+		gpios->led_glb_ctrl = RTL838X_LED_GLB_CTRL;
+		gpios->led_sw_ctrl = RTL838X_LED_SW_CTRL;
+		gpios->led_sw_p_ctrl = rtl838x_led_sw_p_ctrl;
+		gpios->led_sw_p_en_ctrl = rtl838x_led_sw_p_en_ctrl;
+		gpios->ext_gpio_dir = rtl838x_ext_gpio_dir;
+		gpios->ext_gpio_data = rtl838x_ext_gpio_data;
+	}
+
+	if (soc_info.family == RTL8390_FAMILY_ID) {
+		gpios->led_glb_ctrl = RTL839X_LED_GLB_CTRL;
+		gpios->led_sw_ctrl = RTL839X_LED_SW_CTRL;
+		gpios->led_sw_p_ctrl = rtl839x_led_sw_p_ctrl;
+		gpios->led_sw_p_en_ctrl = rtl839x_led_sw_p_en_ctrl;
+		gpios->ext_gpio_dir = rtl839x_ext_gpio_dir;
+		gpios->ext_gpio_data = rtl839x_ext_gpio_data;
+	}
+
+	gpios->dev = dev;
+	gpios->gc.base = 0;
+	/* 0-31: internal
+	 * 32-63, LED control register
+	 * 64-95: PORT-LED 0
+	 * 96-127: PORT-LED 1
+	 * 128-159: PORT-LED 2
+	 */
+	gpios->gc.ngpio = 160;
+	gpios->gc.label = "rtl838x";
+	gpios->gc.parent = dev;
+	gpios->gc.owner = THIS_MODULE;
+	gpios->gc.can_sleep = true;
+	gpios->irq = 31;
+
+	gpios->gc.direction_input = rtl838x_direction_input;
+	gpios->gc.direction_output = rtl838x_direction_output;
+	gpios->gc.set = rtl838x_gpio_set;
+	gpios->gc.get = rtl838x_gpio_get;
+	gpios->gc.get_direction = rtl838x_get_direction;
+
+	if (of_property_read_bool(np, "take-port-leds")) {
+		if (of_property_read_u32(np, "leds-per-port", &gpios->leds_per_port))
+			gpios->leds_per_port = 2;
+		if (of_property_read_u32(np, "led-mode", &gpios->led_mode))
+			gpios->led_mode = (0x1ea << 15) | 0x1ea;
+		if (of_property_read_u32(np, "num-leds", &gpios->num_leds))
+			gpios->num_leds = 32;
+		if (of_property_read_u32(np, "min-led", &gpios->min_led))
+			gpios->min_led = 0;
+		take_port_leds(gpios);
+	}
+
+	err = devm_gpiochip_add_data(dev, &gpios->gc, gpios);
+	return err;
+}
+
+static struct platform_driver rtl838x_gpio_driver = {
+	.driver = {
+		.name = "rtl838x-gpio",
+		.of_match_table	= rtl838x_gpio_of_match,
+	},
+	.probe = rtl838x_gpio_probe,
+};
+
+module_platform_driver(rtl838x_gpio_driver);
+
+MODULE_DESCRIPTION("Realtek RTL838X GPIO API support");
+MODULE_LICENSE("GPL v2");

target/linux/realtek/files-5.10/drivers/mtd/spi-nor/rtl838x-nor.c

@@ -0,0 +1,603 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/spi-nor.h>
+
+#include "rtl838x-spi.h"
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+
+extern struct rtl83xx_soc_info soc_info;
+
+struct rtl838x_nor {
+	struct spi_nor nor;
+	struct device *dev;
+	volatile void __iomem *base;
+	bool fourByteMode;
+	u32 chipSize;
+	uint32_t flags;
+	uint32_t io_status;
+};
+
+static uint32_t spi_prep(struct rtl838x_nor *rtl838x_nor)
+{
+	/* Needed because of MMU constraints */
+	SPI_WAIT_READY;
+	spi_w32w(SPI_CS_INIT, SFCSR);	//deactivate CS0, CS1
+	spi_w32w(0, SFCSR);		//activate CS0,CS1
+	spi_w32w(SPI_CS_INIT, SFCSR);	//deactivate CS0, CS1
+
+	return (CS0 & rtl838x_nor->flags) ? (SPI_eCS0 & SPI_LEN_INIT)
+			: ((SPI_eCS1 & SPI_LEN_INIT) | SFCSR_CHIP_SEL);
+}
+
+static uint32_t rtl838x_nor_get_SR(struct rtl838x_nor *rtl838x_nor)
+{
+	uint32_t sfcsr, sfdr;
+
+	sfcsr = spi_prep(rtl838x_nor);
+	sfdr  = (SPINOR_OP_RDSR)<<24;
+
+	pr_debug("%s: rdid,sfcsr_val = %.8x,SFDR = %.8x\n", __func__, sfcsr, sfdr);
+	pr_debug("rdid,sfcsr = %.8x\n", sfcsr | SPI_LEN4);
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+	spi_w32_mask(0, SPI_LEN4, SFCSR);
+	SPI_WAIT_READY;
+
+	return spi_r32(SFDR);
+}
+
+static void spi_write_disable(struct rtl838x_nor *rtl838x_nor)
+{
+	uint32_t sfcsr, sfdr;
+
+	sfcsr = spi_prep(rtl838x_nor);
+	sfdr = (SPINOR_OP_WRDI) << 24;
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+	pr_debug("%s: sfcsr_val = %.8x,SFDR = %.8x", __func__, sfcsr, sfdr);
+
+	spi_prep(rtl838x_nor);
+}
+
+static void spi_write_enable(struct rtl838x_nor *rtl838x_nor)
+{
+	uint32_t sfcsr, sfdr;
+
+	sfcsr = spi_prep(rtl838x_nor);
+	sfdr = (SPINOR_OP_WREN) << 24;
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+	pr_debug("%s: sfcsr_val = %.8x,SFDR = %.8x", __func__, sfcsr, sfdr);
+
+	spi_prep(rtl838x_nor);
+}
+
+static void spi_4b_set(struct rtl838x_nor *rtl838x_nor, bool enable)
+{
+	uint32_t sfcsr, sfdr;
+
+	sfcsr = spi_prep(rtl838x_nor);
+	if (enable)
+		sfdr = (SPINOR_OP_EN4B) << 24;
+	else
+		sfdr = (SPINOR_OP_EX4B) << 24;
+
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+	pr_debug("%s: sfcsr_val = %.8x,SFDR = %.8x", __func__, sfcsr, sfdr);
+
+	spi_prep(rtl838x_nor);
+}
+
+static int rtl838x_get_addr_mode(struct rtl838x_nor *rtl838x_nor)
+{
+	int res = 3;
+	u32 reg;
+
+	sw_w32(0x3, RTL838X_INT_RW_CTRL);
+	if (!sw_r32(RTL838X_EXT_VERSION)) {
+		if (sw_r32(RTL838X_STRAP_DBG) & (1 << 29))
+			res = 4;
+	} else {
+		reg = sw_r32(RTL838X_PLL_CML_CTRL);
+		if ((reg & (1 << 30)) && (reg & (1 << 31)))
+			res = 4;
+		if ((!(reg & (1 << 30)))
+		     && sw_r32(RTL838X_STRAP_DBG) & (1 << 29))
+			res = 4;
+	}
+	sw_w32(0x0, RTL838X_INT_RW_CTRL);
+	return res;
+}
+
+static int rtl8390_get_addr_mode(struct rtl838x_nor *rtl838x_nor)
+{
+	if (spi_r32(RTL8390_SOC_SPI_MMIO_CONF) & (1 << 9))
+		return 4;
+	return 3;
+}
+
+ssize_t rtl838x_do_read(struct rtl838x_nor *rtl838x_nor, loff_t from,
+			       size_t length, u_char *buffer, uint8_t command)
+{
+	uint32_t sfcsr, sfdr;
+	uint32_t len = length;
+
+	sfcsr = spi_prep(rtl838x_nor);
+	sfdr = command << 24;
+
+	/* Perform SPINOR_OP_READ: 1 byte command & 3 byte addr*/
+	sfcsr |= SPI_LEN4;
+	sfdr |= from;
+
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+
+	/* Read Data, 4 bytes at a time */
+	while (length >= 4) {
+		SPI_WAIT_READY;
+		*((uint32_t *) buffer) = spi_r32(SFDR);
+		buffer += 4;
+		length -= 4;
+	}
+
+	/* The rest needs to be read 1 byte a time */
+	sfcsr &= SPI_LEN_INIT|SPI_LEN1;
+	SPI_WAIT_READY;
+	spi_w32w(sfcsr, SFCSR);
+	while (length > 0) {
+		SPI_WAIT_READY;
+		*(buffer) = spi_r32(SFDR) >> 24;
+		buffer++;
+		length--;
+	}
+	return len;
+}
+
+/*
+ * Do fast read in 3 or 4 Byte addressing mode
+ */
+static ssize_t rtl838x_do_4bf_read(struct rtl838x_nor *rtl838x_nor, loff_t from,
+			       size_t length, u_char *buffer, uint8_t command)
+{
+	int sfcsr_addr_len = rtl838x_nor->fourByteMode ? 0x3 : 0x2;
+	int sfdr_addr_shift = rtl838x_nor->fourByteMode ? 0 : 8;
+	uint32_t sfcsr;
+	uint32_t len = length;
+
+	pr_debug("Fast read from %llx, len %x, shift %d\n",
+		 from, sfcsr_addr_len, sfdr_addr_shift);
+	sfcsr = spi_prep(rtl838x_nor);
+
+	/* Send read command */
+	spi_w32w(sfcsr | SPI_LEN1, SFCSR);
+	spi_w32w(command << 24, SFDR);
+
+	/* Send address */
+	spi_w32w(sfcsr | (sfcsr_addr_len << 28), SFCSR);
+	spi_w32w(from << sfdr_addr_shift, SFDR);
+
+	/* Dummy cycles */
+	spi_w32w(sfcsr | SPI_LEN1, SFCSR);
+	spi_w32w(0, SFDR);
+
+	/* Start reading */
+	spi_w32w(sfcsr | SPI_LEN4, SFCSR);
+
+	/* Read Data, 4 bytes at a time */
+	while (length >= 4) {
+		SPI_WAIT_READY;
+		*((uint32_t *) buffer) = spi_r32(SFDR);
+		buffer += 4;
+		length -= 4;
+	}
+
+	/* The rest needs to be read 1 byte a time */
+	sfcsr &= SPI_LEN_INIT|SPI_LEN1;
+	SPI_WAIT_READY;
+	spi_w32w(sfcsr, SFCSR);
+	while (length > 0) {
+		SPI_WAIT_READY;
+		*(buffer) = spi_r32(SFDR) >> 24;
+		buffer++;
+		length--;
+	}
+	return len;
+
+}
+
+/*
+ * Do write (Page Programming) in 3 or 4 Byte addressing mode
+ */
+static ssize_t rtl838x_do_4b_write(struct rtl838x_nor *rtl838x_nor, loff_t to,
+				    size_t length, const u_char *buffer,
+				    uint8_t command)
+{
+	int sfcsr_addr_len = rtl838x_nor->fourByteMode ? 0x3 : 0x2;
+	int sfdr_addr_shift = rtl838x_nor->fourByteMode ? 0 : 8;
+	uint32_t sfcsr;
+	uint32_t len = length;
+
+	pr_debug("Write to %llx, len %x, shift %d\n",
+		 to, sfcsr_addr_len, sfdr_addr_shift);
+	sfcsr = spi_prep(rtl838x_nor);
+
+	/* Send write command, command IO-width is 1 (bit 25/26) */
+	spi_w32w(sfcsr | SPI_LEN1 | (0 << 25), SFCSR);
+	spi_w32w(command << 24, SFDR);
+
+	/* Send address */
+	spi_w32w(sfcsr | (sfcsr_addr_len << 28) | (0 << 25), SFCSR);
+	spi_w32w(to << sfdr_addr_shift, SFDR);
+
+	/* Write Data, 1 byte at a time, if we are not 4-byte aligned */
+	if (((long)buffer) % 4) {
+		spi_w32w(sfcsr | SPI_LEN1, SFCSR);
+		while (length > 0 && (((long)buffer) % 4)) {
+			SPI_WAIT_READY;
+			spi_w32(*(buffer) << 24, SFDR);
+			buffer += 1;
+			length -= 1;
+		}
+	}
+
+	/* Now we can write 4 bytes at a time */
+	SPI_WAIT_READY;
+	spi_w32w(sfcsr | SPI_LEN4, SFCSR);
+	while (length >= 4) {
+		SPI_WAIT_READY;
+		spi_w32(*((uint32_t *)buffer), SFDR);
+		buffer += 4;
+		length -= 4;
+	}
+
+	/* Final bytes might need to be written 1 byte at a time, again */
+	SPI_WAIT_READY;
+	spi_w32w(sfcsr | SPI_LEN1, SFCSR);
+	while (length > 0) {
+		SPI_WAIT_READY;
+		spi_w32(*(buffer) << 24, SFDR);
+		buffer++;
+		length--;
+	}
+	return len;
+}
+
+static ssize_t rtl838x_nor_write(struct spi_nor *nor, loff_t to, size_t len,
+				 const u_char *buffer)
+{
+	int ret = 0;
+	uint32_t offset = 0;
+	struct rtl838x_nor *rtl838x_nor = nor->priv;
+	size_t l = len;
+	uint8_t cmd = SPINOR_OP_PP;
+
+	/* Do write in 4-byte mode on large Macronix chips */
+	if (rtl838x_nor->fourByteMode) {
+		cmd = SPINOR_OP_PP_4B;
+		spi_4b_set(rtl838x_nor, true);
+	}
+
+	pr_debug("In %s %8x to: %llx\n", __func__,
+		 (unsigned int) rtl838x_nor, to);
+
+	while (l >= SPI_MAX_TRANSFER_SIZE) {
+		while
+			(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WIP);
+		do {
+			spi_write_enable(rtl838x_nor);
+		} while (!(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WEL));
+		ret = rtl838x_do_4b_write(rtl838x_nor, to + offset,
+				SPI_MAX_TRANSFER_SIZE, buffer+offset, cmd);
+		l -= SPI_MAX_TRANSFER_SIZE;
+		offset += SPI_MAX_TRANSFER_SIZE;
+	}
+
+	if (l > 0) {
+		while
+			(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WIP);
+		do {
+			spi_write_enable(rtl838x_nor);
+		} while (!(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WEL));
+		ret = rtl838x_do_4b_write(rtl838x_nor, to+offset,
+					  len, buffer+offset, cmd);
+	}
+
+	return len;
+}
+
+static ssize_t rtl838x_nor_read(struct spi_nor *nor, loff_t from,
+				size_t length, u_char *buffer)
+{
+	uint32_t offset = 0;
+	uint8_t cmd = SPINOR_OP_READ_FAST;
+	size_t l = length;
+	struct rtl838x_nor *rtl838x_nor = nor->priv;
+
+	/* Do fast read in 3, or 4-byte mode on large Macronix chips */
+	if (rtl838x_nor->fourByteMode) {
+		cmd = SPINOR_OP_READ_FAST_4B;
+		spi_4b_set(rtl838x_nor, true);
+	}
+
+	/* TODO: do timeout and return error */
+	pr_debug("Waiting for pending writes\n");
+	while
+		(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WIP);
+	do {
+		spi_write_enable(rtl838x_nor);
+	} while (!(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WEL));
+
+	pr_debug("cmd is %d\n", cmd);
+	pr_debug("%s: addr %.8llx to addr %.8x, cmd %.8x, size %d\n", __func__,
+		 from, (u32)buffer, (u32)cmd, length);
+
+	while (l >= SPI_MAX_TRANSFER_SIZE) {
+		rtl838x_do_4bf_read(rtl838x_nor, from + offset,
+				    SPI_MAX_TRANSFER_SIZE, buffer+offset, cmd);
+		l -= SPI_MAX_TRANSFER_SIZE;
+		offset += SPI_MAX_TRANSFER_SIZE;
+	}
+
+	if (l > 0)
+		rtl838x_do_4bf_read(rtl838x_nor, from + offset, l, buffer+offset, cmd);
+
+	return length;
+}
+
+static int rtl838x_erase(struct spi_nor *nor, loff_t offs)
+{
+	struct rtl838x_nor *rtl838x_nor = nor->priv;
+	int sfcsr_addr_len = rtl838x_nor->fourByteMode ? 0x3 : 0x2;
+	int sfdr_addr_shift = rtl838x_nor->fourByteMode ? 0 : 8;
+	uint32_t sfcsr;
+	uint8_t cmd = SPINOR_OP_SE;
+
+	pr_debug("Erasing sector at %llx\n", offs);
+
+	/* Do erase in 4-byte mode on large Macronix chips */
+	if (rtl838x_nor->fourByteMode) {
+		cmd = SPINOR_OP_SE_4B;
+		spi_4b_set(rtl838x_nor, true);
+	}
+	/* TODO: do timeout and return error */
+	while
+		(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WIP);
+	do {
+		spi_write_enable(rtl838x_nor);
+	} while (!(rtl838x_nor_get_SR(rtl838x_nor) & SPI_WEL));
+
+	sfcsr = spi_prep(rtl838x_nor);
+
+	/* Send erase command, command IO-width is 1 (bit 25/26) */
+	spi_w32w(sfcsr | SPI_LEN1 | (0 << 25), SFCSR);
+	spi_w32w(cmd << 24, SFDR);
+
+	/* Send address */
+	spi_w32w(sfcsr | (sfcsr_addr_len << 28) | (0 << 25), SFCSR);
+	spi_w32w(offs << sfdr_addr_shift, SFDR);
+
+	return 0;
+}
+
+static int rtl838x_nor_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len)
+{
+	int length = len;
+	u8 *buffer = buf;
+	uint32_t sfcsr, sfdr;
+	struct rtl838x_nor *rtl838x_nor = nor->priv;
+
+	pr_debug("In %s: opcode %x, len %x\n", __func__, opcode, len);
+
+	sfcsr = spi_prep(rtl838x_nor);
+	sfdr = opcode << 24;
+
+	sfcsr |= SPI_LEN1;
+
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+
+	while (length > 0) {
+		SPI_WAIT_READY;
+		*(buffer) = spi_r32(SFDR) >> 24;
+		buffer++;
+		length--;
+	}
+
+	return len;
+}
+
+static int rtl838x_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len)
+{
+	uint32_t sfcsr, sfdr;
+	struct rtl838x_nor *rtl838x_nor = nor->priv;
+
+	pr_debug("In %s, opcode %x, len %x\n", __func__, opcode, len);
+	sfcsr = spi_prep(rtl838x_nor);
+	sfdr = opcode << 24;
+
+	if (len == 1) { /* SPINOR_OP_WRSR */
+		sfdr |= buf[0];
+		sfcsr |= SPI_LEN2;
+	}
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+	return 0;
+}
+
+static int spi_enter_sio(struct spi_nor *nor)
+{
+	uint32_t sfcsr, sfcr2, sfdr;
+	uint32_t ret = 0, reg = 0, size_bits;
+	struct rtl838x_nor *rtl838x_nor = nor->priv;
+
+	pr_debug("In %s\n", __func__);
+	rtl838x_nor->io_status = 0;
+	sfdr = SPI_C_RSTQIO << 24;
+	sfcsr = spi_prep(rtl838x_nor);
+
+	reg = spi_r32(SFCR2);
+	pr_debug("SFCR2: %x, size %x, rdopt: %x\n", reg, SFCR2_GETSIZE(reg),
+						  (reg & SFCR2_RDOPT));
+	size_bits = rtl838x_nor->fourByteMode ? SFCR2_SIZE(0x6) : SFCR2_SIZE(0x7);
+
+	sfcr2 = SFCR2_HOLD_TILL_SFDR2 | size_bits
+		| (reg & SFCR2_RDOPT) | SFCR2_CMDIO(0)
+		| SFCR2_ADDRIO(0) | SFCR2_DUMMYCYCLE(4)
+		| SFCR2_DATAIO(0) | SFCR2_SFCMD(SPINOR_OP_READ_FAST);
+	pr_debug("SFCR2: %x, size %x\n", reg, SFCR2_GETSIZE(reg));
+
+	SPI_WAIT_READY;
+	spi_w32w(sfcr2, SFCR2);
+	spi_w32w(sfcsr, SFCSR);
+	spi_w32w(sfdr, SFDR);
+
+	spi_w32_mask(SFCR2_HOLD_TILL_SFDR2, 0, SFCR2);
+	rtl838x_nor->io_status &= ~IOSTATUS_CIO_MASK;
+	rtl838x_nor->io_status |= CIO1;
+
+	spi_prep(rtl838x_nor);
+
+	return ret;
+}
+
+int rtl838x_spi_nor_scan(struct spi_nor *nor, const char *name)
+{
+	static const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ | SNOR_HWCAPS_PP
+			| SNOR_HWCAPS_READ_FAST
+	};
+
+	struct rtl838x_nor *rtl838x_nor = nor->priv;
+
+	pr_debug("In %s\n", __func__);
+
+	spi_w32_mask(0, SFCR_EnableWBO, SFCR);
+	spi_w32_mask(0, SFCR_EnableRBO, SFCR);
+
+	rtl838x_nor->flags = CS0 | R_MODE;
+
+	spi_nor_scan(nor, NULL, &hwcaps);
+	pr_debug("------------- Got size: %llx\n", nor->mtd.size);
+
+	return 0;
+}
+
+int rtl838x_nor_init(struct rtl838x_nor *rtl838x_nor,
+			struct device_node *flash_node)
+{
+	int ret;
+	struct spi_nor *nor;
+
+	pr_info("%s called\n", __func__);
+	nor = &rtl838x_nor->nor;
+	nor->dev = rtl838x_nor->dev;
+	nor->priv = rtl838x_nor;
+	spi_nor_set_flash_node(nor, flash_node);
+
+	nor->read_reg = rtl838x_nor_read_reg;
+	nor->write_reg = rtl838x_nor_write_reg;
+	nor->read = rtl838x_nor_read;
+	nor->write = rtl838x_nor_write;
+	nor->erase = rtl838x_erase;
+	nor->mtd.name = "rtl838x_nor";
+	nor->erase_opcode = rtl838x_nor->fourByteMode ? SPINOR_OP_SE_4B
+					: SPINOR_OP_SE;
+	/* initialized with NULL */
+	ret = rtl838x_spi_nor_scan(nor, NULL);
+	if (ret)
+		return ret;
+
+	spi_enter_sio(nor);
+	spi_write_disable(rtl838x_nor);
+
+	ret = mtd_device_parse_register(&nor->mtd, NULL, NULL, NULL, 0);
+	return ret;
+}
+
+static int rtl838x_nor_drv_probe(struct platform_device *pdev)
+{
+	struct device_node *flash_np;
+	struct resource *res;
+	int ret;
+	struct rtl838x_nor *rtl838x_nor;
+	int addrMode;
+
+	pr_info("Initializing rtl838x_nor_driver\n");
+	if (!pdev->dev.of_node) {
+		dev_err(&pdev->dev, "No DT found\n");
+		return -EINVAL;
+	}
+
+	rtl838x_nor = devm_kzalloc(&pdev->dev, sizeof(*rtl838x_nor), GFP_KERNEL);
+	if (!rtl838x_nor)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, rtl838x_nor);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	rtl838x_nor->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR((void *)rtl838x_nor->base))
+		return PTR_ERR((void *)rtl838x_nor->base);
+
+	pr_info("SPI resource base is %08x\n", (u32)rtl838x_nor->base);
+	rtl838x_nor->dev = &pdev->dev;
+
+	/* only support one attached flash */
+	flash_np = of_get_next_available_child(pdev->dev.of_node, NULL);
+	if (!flash_np) {
+		dev_err(&pdev->dev, "no SPI flash device to configure\n");
+		ret = -ENODEV;
+		goto nor_free;
+	}
+
+	/* Get the 3/4 byte address mode as configure by bootloader */
+	if (soc_info.family == RTL8390_FAMILY_ID)
+		addrMode = rtl8390_get_addr_mode(rtl838x_nor);
+	else
+		addrMode = rtl838x_get_addr_mode(rtl838x_nor);
+	pr_info("Address mode is %d bytes\n", addrMode);
+	if (addrMode == 4)
+		rtl838x_nor->fourByteMode = true;
+
+	ret = rtl838x_nor_init(rtl838x_nor, flash_np);
+
+nor_free:
+	return ret;
+}
+
+static int rtl838x_nor_drv_remove(struct platform_device *pdev)
+{
+/*	struct rtl8xx_nor *rtl838x_nor = platform_get_drvdata(pdev); */
+	return 0;
+}
+
+static const struct of_device_id rtl838x_nor_of_ids[] = {
+	{ .compatible = "realtek,rtl838x-nor"},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, rtl838x_nor_of_ids);
+
+static struct platform_driver rtl838x_nor_driver = {
+	.probe = rtl838x_nor_drv_probe,
+	.remove = rtl838x_nor_drv_remove,
+	.driver = {
+		.name = "rtl838x-nor",
+		.pm = NULL,
+		.of_match_table = rtl838x_nor_of_ids,
+	},
+};
+
+module_platform_driver(rtl838x_nor_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("RTL838x SPI NOR Flash Driver");

target/linux/realtek/files-5.10/drivers/mtd/spi-nor/rtl838x-spi.h

@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2009 Realtek Semiconductor Corp.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _RTL838X_SPI_H
+#define _RTL838X_SPI_H
+
+
+/*
+ * Register access macros
+ */
+
+#define spi_r32(reg)		readl(rtl838x_nor->base + reg)
+#define spi_w32(val, reg)	writel(val, rtl838x_nor->base + reg)
+#define spi_w32_mask(clear, set, reg)	\
+	spi_w32((spi_r32(reg) & ~(clear)) | (set), reg)
+
+#define SPI_WAIT_READY		do { \
+				} while (!(spi_r32(SFCSR) & SFCSR_SPI_RDY))
+
+#define spi_w32w(val, reg)	do { \
+					writel(val, rtl838x_nor->base + reg); \
+					SPI_WAIT_READY; \
+				} while (0)
+
+#define SFCR   (0x00)			/*SPI Flash Configuration Register*/
+	#define SFCR_CLK_DIV(val)	((val)<<29)
+	#define SFCR_EnableRBO		(1<<28)
+	#define SFCR_EnableWBO		(1<<27)
+	#define SFCR_SPI_TCS(val)	((val)<<23) /*4 bit, 1111 */
+
+#define SFCR2  (0x04)	/*For memory mapped I/O */
+	#define SFCR2_SFCMD(val)	((val)<<24) /*8 bit, 1111_1111 */
+	#define SFCR2_SIZE(val)		((val)<<21) /*3 bit, 111 */
+	#define SFCR2_RDOPT		(1<<20)
+	#define SFCR2_CMDIO(val)	((val)<<18) /*2 bit, 11 */
+	#define SFCR2_ADDRIO(val)	((val)<<16) /*2 bit, 11 */
+	#define SFCR2_DUMMYCYCLE(val)	((val)<<13) /*3 bit, 111 */
+	#define SFCR2_DATAIO(val)	((val)<<11) /*2 bit, 11 */
+	#define SFCR2_HOLD_TILL_SFDR2	(1<<10)
+	#define SFCR2_GETSIZE(x)	(((x)&0x00E00000)>>21)
+
+#define SFCSR  (0x08)	/*SPI Flash Control&Status Register*/
+	#define SFCSR_SPI_CSB0		(1<<31)
+	#define SFCSR_SPI_CSB1		(1<<30)
+	#define SFCSR_LEN(val)		((val)<<28)  /*2 bits*/
+	#define SFCSR_SPI_RDY		(1<<27)
+	#define SFCSR_IO_WIDTH(val)	((val)<<25)  /*2 bits*/
+	#define SFCSR_CHIP_SEL		(1<<24)
+	#define SFCSR_CMD_BYTE(val)	((val)<<16)  /*8 bit, 1111_1111 */
+
+#define SFDR   (0x0C)	/*SPI Flash Data Register*/
+#define SFDR2  (0x10)	/*SPI Flash Data Register - for post SPI bootup setting*/
+	#define SPI_CS_INIT		(SFCSR_SPI_CSB0 | SFCSR_SPI_CSB1 | SPI_LEN1)
+	#define SPI_CS0			SFCSR_SPI_CSB0
+	#define SPI_CS1			SFCSR_SPI_CSB1
+	#define SPI_eCS0		((SFCSR_SPI_CSB1)) /*and SFCSR to active CS0*/
+	#define SPI_eCS1		((SFCSR_SPI_CSB0)) /*and SFCSR to active CS1*/
+
+	#define SPI_WIP (1)		/* Write In Progress */
+	#define SPI_WEL (1<<1)		/* Write Enable Latch*/
+	#define SPI_SST_QIO_WIP (1<<7)	/* SST QIO Flash Write In Progress */
+	#define SPI_LEN_INIT 0xCFFFFFFF /* and SFCSR to init   */
+	#define SPI_LEN4    0x30000000	/* or SFCSR to set */
+	#define SPI_LEN3    0x20000000	/* or SFCSR to set */
+	#define SPI_LEN2    0x10000000	/* or SFCSR to set */
+	#define SPI_LEN1    0x00000000	/* or SFCSR to set */
+	#define SPI_SETLEN(val) do {		\
+			SPI_REG(SFCSR) &= 0xCFFFFFFF;   \
+			SPI_REG(SFCSR) |= (val-1)<<28;	\
+		} while (0)
+/*
+ * SPI interface control
+ */
+#define RTL8390_SOC_SPI_MMIO_CONF (0x04)
+
+#define IOSTATUS_CIO_MASK (0x00000038)
+
+/* Chip select: bits 4-7*/
+#define CS0 (1<<4)
+#define R_MODE 0x04
+
+/* io_status */
+#define IO1 (1<<0)
+#define IO2 (1<<1)
+#define CIO1 (1<<3)
+#define CIO2 (1<<4)
+#define CMD_IO1 (1<<6)
+#define W_ADDR_IO1 ((1)<<12)
+#define R_ADDR_IO2 ((2)<<9)
+#define R_DATA_IO2 ((2)<<15)
+#define W_DATA_IO1 ((1)<<18)
+
+/* Commands */
+#define SPI_C_RSTQIO 0xFF
+
+#define SPI_MAX_TRANSFER_SIZE 256
+
+#endif		/* _RTL838X_SPI_H */

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/Kconfig

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config NET_DSA_RTL83XX
+	tristate "Realtek RTL838x/RTL839x switch support"
+	depends on RTL838X
+	select NET_DSA_TAG_TRAILER
+	---help---
+	  This driver adds support for Realtek RTL83xx series switching.
+

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/Makefile

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_NET_DSA_RTL83XX)	+= common.o dsa.o \
+	rtl838x.o rtl839x.o rtl930x.o rtl931x.o debugfs.o qos.o

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/common.c

@@ -0,0 +1,722 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/of_mdio.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+#include "rtl83xx.h"
+
+extern struct rtl83xx_soc_info soc_info;
+
+extern const struct rtl838x_reg rtl838x_reg;
+extern const struct rtl838x_reg rtl839x_reg;
+extern const struct rtl838x_reg rtl930x_reg;
+extern const struct rtl838x_reg rtl931x_reg;
+
+extern const struct dsa_switch_ops rtl83xx_switch_ops;
+extern const struct dsa_switch_ops rtl930x_switch_ops;
+
+DEFINE_MUTEX(smi_lock);
+
+int rtl83xx_port_get_stp_state(struct rtl838x_switch_priv *priv, int port)
+{
+	u32 msti = 0;
+	u32 port_state[4];
+	int index, bit;
+	int pos = port;
+	int n = priv->port_width << 1;
+
+	/* Ports above or equal CPU port can never be configured */
+	if (port >= priv->cpu_port)
+		return -1;
+
+	mutex_lock(&priv->reg_mutex);
+
+	/* For the RTL839x and following, the bits are left-aligned in the 64/128 bit field */
+	if (priv->family_id == RTL8390_FAMILY_ID)
+		pos += 12;
+	if (priv->family_id == RTL9300_FAMILY_ID)
+		pos += 3;
+	if (priv->family_id == RTL9310_FAMILY_ID)
+		pos += 8;
+
+	index = n - (pos >> 4) - 1;
+	bit = (pos << 1) % 32;
+
+	priv->r->stp_get(priv, msti, port_state);
+
+	mutex_unlock(&priv->reg_mutex);
+
+	return (port_state[index] >> bit) & 3;
+}
+
+static struct table_reg rtl838x_tbl_regs[] = {
+	TBL_DESC(0x6900, 0x6908, 3, 15, 13, 1),		// RTL8380_TBL_L2
+	TBL_DESC(0x6914, 0x6918, 18, 14, 12, 1),	// RTL8380_TBL_0
+	TBL_DESC(0xA4C8, 0xA4CC, 6, 14, 12, 1),		// RTL8380_TBL_1
+
+	TBL_DESC(0x1180, 0x1184, 3, 16, 14, 0),		// RTL8390_TBL_L2
+	TBL_DESC(0x1190, 0x1194, 17, 15, 12, 0),	// RTL8390_TBL_0
+	TBL_DESC(0x6B80, 0x6B84, 4, 14, 12, 0),		// RTL8390_TBL_1
+	TBL_DESC(0x611C, 0x6120, 9, 8, 6, 0),		// RTL8390_TBL_2
+
+	TBL_DESC(0xB320, 0xB334, 3, 18, 16, 0),		// RTL9300_TBL_L2
+	TBL_DESC(0xB340, 0xB344, 19, 16, 12, 0),	// RTL9300_TBL_0
+	TBL_DESC(0xB3A0, 0xB3A4, 20, 16, 13, 0),	// RTL9300_TBL_1
+	TBL_DESC(0xCE04, 0xCE08, 6, 14, 12, 0),		// RTL9300_TBL_2
+	TBL_DESC(0xD600, 0xD604, 30, 7, 6, 0),		// RTL9300_TBL_HSB
+	TBL_DESC(0x7880, 0x7884, 22, 9, 8, 0),		// RTL9300_TBL_HSA
+
+	TBL_DESC(0x8500, 0x8508, 8, 19, 15, 0),		// RTL9310_TBL_0
+	TBL_DESC(0x40C0, 0x40C4, 22, 16, 14, 0),	// RTL9310_TBL_1
+	TBL_DESC(0x8528, 0x852C, 6, 18, 14, 0),		// RTL9310_TBL_2
+	TBL_DESC(0x0200, 0x0204, 9, 15, 12, 0),		// RTL9310_TBL_3
+	TBL_DESC(0x20dc, 0x20e0, 29, 7, 6, 0),		// RTL9310_TBL_4
+	TBL_DESC(0x7e1c, 0x7e20, 53, 8, 6, 0),		// RTL9310_TBL_5
+};
+
+void rtl_table_init(void)
+{
+	int i;
+
+	for (i = 0; i < RTL_TBL_END; i++)
+		mutex_init(&rtl838x_tbl_regs[i].lock);
+}
+
+/*
+ * Request access to table t in table access register r
+ * Returns a handle to a lock for that table
+ */
+struct table_reg *rtl_table_get(rtl838x_tbl_reg_t r, int t)
+{
+	if (r >= RTL_TBL_END)
+		return NULL;
+
+	if (t >= BIT(rtl838x_tbl_regs[r].c_bit-rtl838x_tbl_regs[r].t_bit))
+		return NULL;
+
+	mutex_lock(&rtl838x_tbl_regs[r].lock);
+	rtl838x_tbl_regs[r].tbl = t;
+
+	return &rtl838x_tbl_regs[r];
+}
+
+/*
+ * Release a table r, unlock the corresponding lock
+ */
+void rtl_table_release(struct table_reg *r)
+{
+	if (!r)
+		return;
+
+//	pr_info("Unlocking %08x\n", (u32)r);
+	mutex_unlock(&r->lock);
+//	pr_info("Unlock done\n");
+}
+
+/*
+ * Reads table index idx into the data registers of the table
+ */
+void rtl_table_read(struct table_reg *r, int idx)
+{
+	u32 cmd = r->rmode ? BIT(r->c_bit) : 0;
+
+	cmd |= BIT(r->c_bit + 1) | (r->tbl << r->t_bit) | (idx & (BIT(r->t_bit) - 1));
+	sw_w32(cmd, r->addr);
+	do { } while (sw_r32(r->addr) & BIT(r->c_bit + 1));
+}
+
+/*
+ * Writes the content of the table data registers into the table at index idx
+ */
+void rtl_table_write(struct table_reg *r, int idx)
+{
+	u32 cmd = r->rmode ? 0 : BIT(r->c_bit);
+
+	cmd |= BIT(r->c_bit + 1) | (r->tbl << r->t_bit) | (idx & (BIT(r->t_bit) - 1));
+	sw_w32(cmd, r->addr);
+	do { } while (sw_r32(r->addr) & BIT(r->c_bit + 1));
+}
+
+/*
+ * Returns the address of the ith data register of table register r
+ * the address is relative to the beginning of the Switch-IO block at 0xbb000000
+ */
+inline u16 rtl_table_data(struct table_reg *r, int i)
+{
+	if (i >= r->max_data)
+		i = r->max_data - 1;
+	return r->data + i * 4;
+}
+
+inline u32 rtl_table_data_r(struct table_reg *r, int i)
+{
+	return sw_r32(rtl_table_data(r, i));
+}
+
+inline void rtl_table_data_w(struct table_reg *r, u32 v, int i)
+{
+	sw_w32(v, rtl_table_data(r, i));
+}
+
+/* Port register accessor functions for the RTL838x and RTL930X SoCs */
+void rtl838x_mask_port_reg(u64 clear, u64 set, int reg)
+{
+	sw_w32_mask((u32)clear, (u32)set, reg);
+}
+
+void rtl838x_set_port_reg(u64 set, int reg)
+{
+	sw_w32((u32)set, reg);
+}
+
+u64 rtl838x_get_port_reg(int reg)
+{
+	return ((u64) sw_r32(reg));
+}
+
+/* Port register accessor functions for the RTL839x and RTL931X SoCs */
+void rtl839x_mask_port_reg_be(u64 clear, u64 set, int reg)
+{
+	sw_w32_mask((u32)(clear >> 32), (u32)(set >> 32), reg);
+	sw_w32_mask((u32)(clear & 0xffffffff), (u32)(set & 0xffffffff), reg + 4);
+}
+
+u64 rtl839x_get_port_reg_be(int reg)
+{
+	u64 v = sw_r32(reg);
+
+	v <<= 32;
+	v |= sw_r32(reg + 4);
+	return v;
+}
+
+void rtl839x_set_port_reg_be(u64 set, int reg)
+{
+	sw_w32(set >> 32, reg);
+	sw_w32(set & 0xffffffff, reg + 4);
+}
+
+void rtl839x_mask_port_reg_le(u64 clear, u64 set, int reg)
+{
+	sw_w32_mask((u32)clear, (u32)set, reg);
+	sw_w32_mask((u32)(clear >> 32), (u32)(set >> 32), reg + 4);
+}
+
+void rtl839x_set_port_reg_le(u64 set, int reg)
+{
+	sw_w32(set, reg);
+	sw_w32(set >> 32, reg + 4);
+}
+
+u64 rtl839x_get_port_reg_le(int reg)
+{
+	u64 v = sw_r32(reg + 4);
+
+	v <<= 32;
+	v |= sw_r32(reg);
+	return v;
+}
+
+int read_phy(u32 port, u32 page, u32 reg, u32 *val)
+{
+	switch (soc_info.family) {
+	case RTL8380_FAMILY_ID:
+		return rtl838x_read_phy(port, page, reg, val);
+	case RTL8390_FAMILY_ID:
+		return rtl839x_read_phy(port, page, reg, val);
+	case RTL9300_FAMILY_ID:
+		return rtl930x_read_phy(port, page, reg, val);
+	case RTL9310_FAMILY_ID:
+		return rtl931x_read_phy(port, page, reg, val);
+	}
+	return -1;
+}
+
+int write_phy(u32 port, u32 page, u32 reg, u32 val)
+{
+	switch (soc_info.family) {
+	case RTL8380_FAMILY_ID:
+		return rtl838x_write_phy(port, page, reg, val);
+	case RTL8390_FAMILY_ID:
+		return rtl839x_write_phy(port, page, reg, val);
+	case RTL9300_FAMILY_ID:
+		return rtl930x_write_phy(port, page, reg, val);
+	case RTL9310_FAMILY_ID:
+		return rtl931x_write_phy(port, page, reg, val);
+	}
+	return -1;
+}
+
+static int __init rtl83xx_mdio_probe(struct rtl838x_switch_priv *priv)
+{
+	struct device *dev = priv->dev;
+	struct device_node *dn, *mii_np = dev->of_node;
+	struct mii_bus *bus;
+	int ret;
+	u32 pn;
+
+	pr_debug("In %s\n", __func__);
+	mii_np = of_find_compatible_node(NULL, NULL, "realtek,rtl838x-mdio");
+	if (mii_np) {
+		pr_debug("Found compatible MDIO node!\n");
+	} else {
+		dev_err(priv->dev, "no %s child node found", "mdio-bus");
+		return -ENODEV;
+	}
+
+	priv->mii_bus = of_mdio_find_bus(mii_np);
+	if (!priv->mii_bus) {
+		pr_debug("Deferring probe of mdio bus\n");
+		return -EPROBE_DEFER;
+	}
+	if (!of_device_is_available(mii_np))
+		ret = -ENODEV;
+
+	bus = devm_mdiobus_alloc(priv->ds->dev);
+	if (!bus)
+		return -ENOMEM;
+
+	bus->name = "rtl838x slave mii";
+
+	/*
+	 * Since the NIC driver is loaded first, we can use the mdio rw functions
+	 * assigned there.
+	 */
+	bus->read = priv->mii_bus->read;
+	bus->write = priv->mii_bus->write;
+	snprintf(bus->id, MII_BUS_ID_SIZE, "%s-%d", bus->name, dev->id);
+
+	bus->parent = dev;
+	priv->ds->slave_mii_bus = bus;
+	priv->ds->slave_mii_bus->priv = priv;
+
+	ret = mdiobus_register(priv->ds->slave_mii_bus);
+	if (ret && mii_np) {
+		of_node_put(dn);
+		return ret;
+	}
+
+	dn = mii_np;
+	for_each_node_by_name(dn, "ethernet-phy") {
+		if (of_property_read_u32(dn, "reg", &pn))
+			continue;
+
+		priv->ports[pn].dp = dsa_to_port(priv->ds, pn);
+
+		// Check for the integrated SerDes of the RTL8380M first
+		if (of_property_read_bool(dn, "phy-is-integrated")
+			&& priv->id == 0x8380 && pn >= 24) {
+			pr_debug("----> FÓUND A SERDES\n");
+			priv->ports[pn].phy = PHY_RTL838X_SDS;
+			continue;
+		}
+
+		if (of_property_read_bool(dn, "phy-is-integrated")
+			&& !of_property_read_bool(dn, "sfp")) {
+			priv->ports[pn].phy = PHY_RTL8218B_INT;
+			continue;
+		}
+
+		if (!of_property_read_bool(dn, "phy-is-integrated")
+			&& of_property_read_bool(dn, "sfp")) {
+			priv->ports[pn].phy = PHY_RTL8214FC;
+			continue;
+		}
+
+		if (!of_property_read_bool(dn, "phy-is-integrated")
+			&& !of_property_read_bool(dn, "sfp")) {
+			priv->ports[pn].phy = PHY_RTL8218B_EXT;
+			continue;
+		}
+	}
+
+	// TODO: Do this needs to come from the .dts, at least the SerDes number
+	if (priv->family_id == RTL9300_FAMILY_ID) {
+		priv->ports[24].is2G5 = true;
+		priv->ports[25].is2G5 = true;
+		priv->ports[24].sds_num = 1;
+		priv->ports[24].sds_num = 2;
+	}
+
+	/* Disable MAC polling the PHY so that we can start configuration */
+	priv->r->set_port_reg_le(0ULL, priv->r->smi_poll_ctrl);
+
+	/* Enable PHY control via SoC */
+	if (priv->family_id == RTL8380_FAMILY_ID) {
+		/* Enable SerDes NWAY and PHY control via SoC */
+		sw_w32_mask(BIT(7), BIT(15), RTL838X_SMI_GLB_CTRL);
+	} else {
+		/* Disable PHY polling via SoC */
+		sw_w32_mask(BIT(7), 0, RTL839X_SMI_GLB_CTRL);
+	}
+
+	/* Power on fibre ports and reset them if necessary */
+	if (priv->ports[24].phy == PHY_RTL838X_SDS) {
+		pr_debug("Powering on fibre ports & reset\n");
+		rtl8380_sds_power(24, 1);
+		rtl8380_sds_power(26, 1);
+	}
+
+	// TODO: Only power on SerDes with external PHYs connected
+	if (priv->family_id == RTL9300_FAMILY_ID) {
+		pr_info("RTL9300 Powering on SerDes ports\n");
+		rtl9300_sds_power(24, 1);
+		rtl9300_sds_power(25, 1);
+		rtl9300_sds_power(26, 1);
+		rtl9300_sds_power(27, 1);
+	}
+
+	pr_debug("%s done\n", __func__);
+	return 0;
+}
+
+static int __init rtl83xx_get_l2aging(struct rtl838x_switch_priv *priv)
+{
+	int t = sw_r32(priv->r->l2_ctrl_1);
+
+	t &= priv->family_id == RTL8380_FAMILY_ID ? 0x7fffff : 0x1FFFFF;
+
+	if (priv->family_id == RTL8380_FAMILY_ID)
+		t = t * 128 / 625; /* Aging time in seconds. 0: L2 aging disabled */
+	else
+		t = (t * 3) / 5;
+
+	pr_debug("L2 AGING time: %d sec\n", t);
+	pr_debug("Dynamic aging for ports: %x\n", sw_r32(priv->r->l2_port_aging_out));
+	return t;
+}
+
+/* Caller must hold priv->reg_mutex */
+int rtl83xx_lag_add(struct dsa_switch *ds, int group, int port)
+{
+	struct rtl838x_switch_priv *priv = ds->priv;
+	int i;
+
+	pr_info("%s: Adding port %d to LA-group %d\n", __func__, port, group);
+	if (group >= priv->n_lags) {
+		pr_err("Link Agrregation group too large.\n");
+		return -EINVAL;
+	}
+
+	if (port >= priv->cpu_port) {
+		pr_err("Invalid port number.\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < priv->n_lags; i++) {
+		if (priv->lags_port_members[i] & BIT_ULL(i))
+			break;
+	}
+	if (i != priv->n_lags) {
+		pr_err("%s: Port already member of LAG: %d\n", __func__, i);
+		return -ENOSPC;
+	}
+
+	priv->r->mask_port_reg_be(0, BIT_ULL(port), priv->r->trk_mbr_ctr(group));
+	priv->lags_port_members[group] |= BIT_ULL(port);
+
+	pr_info("lags_port_members %d now %016llx\n", group, priv->lags_port_members[group]);
+	return 0;
+}
+
+/* Caller must hold priv->reg_mutex */
+int rtl83xx_lag_del(struct dsa_switch *ds, int group, int port)
+{
+	struct rtl838x_switch_priv *priv = ds->priv;
+
+	pr_info("%s: Removing port %d from LA-group %d\n", __func__, port, group);
+
+	if (group >= priv->n_lags) {
+		pr_err("Link Agrregation group too large.\n");
+		return -EINVAL;
+	}
+
+	if (port >= priv->cpu_port) {
+		pr_err("Invalid port number.\n");
+		return -EINVAL;
+	}
+
+
+	if (!(priv->lags_port_members[group] & BIT_ULL(port))) {
+		pr_err("%s: Port not member of LAG: %d\n", __func__, group
+		);
+		return -ENOSPC;
+	}
+
+	priv->r->mask_port_reg_be(BIT_ULL(port), 0, priv->r->trk_mbr_ctr(group));
+	priv->lags_port_members[group] &= ~BIT_ULL(port);
+
+	pr_info("lags_port_members %d now %016llx\n", group, priv->lags_port_members[group]);
+	return 0;
+}
+
+static int rtl83xx_handle_changeupper(struct rtl838x_switch_priv *priv,
+				      struct net_device *ndev,
+				      struct netdev_notifier_changeupper_info *info)
+{
+	struct net_device *upper = info->upper_dev;
+	int i, j, err;
+
+	if (!netif_is_lag_master(upper))
+		return 0;
+
+	mutex_lock(&priv->reg_mutex);
+
+	for (i = 0; i < priv->n_lags; i++) {
+		if ((!priv->lag_devs[i]) || (priv->lag_devs[i] == upper))
+			break;
+	}
+	for (j = 0; j < priv->cpu_port; j++) {
+		if (priv->ports[j].dp->slave == ndev)
+			break;
+	}
+	if (j >= priv->cpu_port) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	if (info->linking) {
+		if (!priv->lag_devs[i])
+			priv->lag_devs[i] = upper;
+		err = rtl83xx_lag_add(priv->ds, i, priv->ports[j].dp->index);
+		if (err) {
+			err = -EINVAL;
+			goto out;
+		}
+	} else {
+		if (!priv->lag_devs[i])
+			err = -EINVAL;
+		err = rtl83xx_lag_del(priv->ds, i, priv->ports[j].dp->index);
+		if (err) {
+			err = -EINVAL;
+			goto out;
+		}
+		if (!priv->lags_port_members[i])
+			priv->lag_devs[i] = NULL;
+	}
+
+out:
+	mutex_unlock(&priv->reg_mutex);
+	return 0;
+}
+
+static int rtl83xx_netdevice_event(struct notifier_block *this,
+				   unsigned long event, void *ptr)
+{
+	struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
+	struct rtl838x_switch_priv *priv;
+	int err;
+
+	pr_debug("In: %s, event: %lu\n", __func__, event);
+
+	if ((event != NETDEV_CHANGEUPPER) && (event != NETDEV_CHANGELOWERSTATE))
+		return NOTIFY_DONE;
+
+	priv = container_of(this, struct rtl838x_switch_priv, nb);
+	switch (event) {
+	case NETDEV_CHANGEUPPER:
+		err = rtl83xx_handle_changeupper(priv, ndev, ptr);
+		break;
+	}
+
+	if (err)
+		return err;
+
+	return NOTIFY_DONE;
+}
+
+static int __init rtl83xx_sw_probe(struct platform_device *pdev)
+{
+	int err = 0, i;
+	struct rtl838x_switch_priv *priv;
+	struct device *dev = &pdev->dev;
+	u64 bpdu_mask;
+
+	pr_debug("Probing RTL838X switch device\n");
+	if (!pdev->dev.of_node) {
+		dev_err(dev, "No DT found\n");
+		return -EINVAL;
+	}
+
+	// Initialize access to RTL switch tables
+	rtl_table_init();
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->ds = dsa_switch_alloc(dev, DSA_MAX_PORTS);
+
+	if (!priv->ds)
+		return -ENOMEM;
+	priv->ds->dev = dev;
+	priv->ds->priv = priv;
+	priv->ds->ops = &rtl83xx_switch_ops;
+	priv->dev = dev;
+
+	priv->family_id = soc_info.family;
+	priv->id = soc_info.id;
+	switch(soc_info.family) {
+	case RTL8380_FAMILY_ID:
+		priv->ds->ops = &rtl83xx_switch_ops;
+		priv->cpu_port = RTL838X_CPU_PORT;
+		priv->port_mask = 0x1f;
+		priv->port_width = 1;
+		priv->irq_mask = 0x0FFFFFFF;
+		priv->r = &rtl838x_reg;
+		priv->ds->num_ports = 29;
+		priv->fib_entries = 8192;
+		rtl8380_get_version(priv);
+		priv->n_lags = 8;
+		priv->l2_bucket_size = 4;
+		break;
+	case RTL8390_FAMILY_ID:
+		priv->ds->ops = &rtl83xx_switch_ops;
+		priv->cpu_port = RTL839X_CPU_PORT;
+		priv->port_mask = 0x3f;
+		priv->port_width = 2;
+		priv->irq_mask = 0xFFFFFFFFFFFFFULL;
+		priv->r = &rtl839x_reg;
+		priv->ds->num_ports = 53;
+		priv->fib_entries = 16384;
+		rtl8390_get_version(priv);
+		priv->n_lags = 16;
+		priv->l2_bucket_size = 4;
+		break;
+	case RTL9300_FAMILY_ID:
+		priv->ds->ops = &rtl930x_switch_ops;
+		priv->cpu_port = RTL930X_CPU_PORT;
+		priv->port_mask = 0x1f;
+		priv->port_width = 1;
+		priv->irq_mask = 0x0FFFFFFF;
+		priv->r = &rtl930x_reg;
+		priv->ds->num_ports = 29;
+		priv->fib_entries = 16384;
+		priv->version = RTL8390_VERSION_A;
+		priv->n_lags = 16;
+		sw_w32(1, RTL930X_ST_CTRL);
+		priv->l2_bucket_size = 8;
+		break;
+	case RTL9310_FAMILY_ID:
+		priv->ds->ops = &rtl930x_switch_ops;
+		priv->cpu_port = RTL931X_CPU_PORT;
+		priv->port_mask = 0x3f;
+		priv->port_width = 2;
+		priv->irq_mask = 0xFFFFFFFFFFFFFULL;
+		priv->r = &rtl931x_reg;
+		priv->ds->num_ports = 57;
+		priv->fib_entries = 16384;
+		priv->version = RTL8390_VERSION_A;
+		priv->n_lags = 16;
+		priv->l2_bucket_size = 8;
+		break;
+	}
+	pr_debug("Chip version %c\n", priv->version);
+
+	err = rtl83xx_mdio_probe(priv);
+	if (err) {
+		/* Probing fails the 1st time because of missing ethernet driver
+		 * initialization. Use this to disable traffic in case the bootloader left if on
+		 */
+		return err;
+	}
+	err = dsa_register_switch(priv->ds);
+	if (err) {
+		dev_err(dev, "Error registering switch: %d\n", err);
+		return err;
+	}
+
+	/* Enable link and media change interrupts. Are the SERDES masks needed? */
+	sw_w32_mask(0, 3, priv->r->isr_glb_src);
+
+	priv->r->set_port_reg_le(priv->irq_mask, priv->r->isr_port_link_sts_chg);
+	priv->r->set_port_reg_le(priv->irq_mask, priv->r->imr_port_link_sts_chg);
+
+	priv->link_state_irq = platform_get_irq(pdev, 0);
+	pr_info("LINK state irq: %d\n", priv->link_state_irq);
+	switch (priv->family_id) {
+	case RTL8380_FAMILY_ID:
+		err = request_irq(priv->link_state_irq, rtl838x_switch_irq,
+				IRQF_SHARED, "rtl838x-link-state", priv->ds);
+		break;
+	case RTL8390_FAMILY_ID:
+		err = request_irq(priv->link_state_irq, rtl839x_switch_irq,
+				IRQF_SHARED, "rtl839x-link-state", priv->ds);
+		break;
+	case RTL9300_FAMILY_ID:
+		err = request_irq(priv->link_state_irq, rtl930x_switch_irq,
+				IRQF_SHARED, "rtl930x-link-state", priv->ds);
+		break;
+	case RTL9310_FAMILY_ID:
+		err = request_irq(priv->link_state_irq, rtl931x_switch_irq,
+				IRQF_SHARED, "rtl931x-link-state", priv->ds);
+		break;
+	}
+	if (err) {
+		dev_err(dev, "Error setting up switch interrupt.\n");
+		/* Need to free allocated switch here */
+	}
+
+	/* Enable interrupts for switch, on RTL931x, the IRQ is always on globally */
+	if (soc_info.family != RTL9310_FAMILY_ID)
+		sw_w32(0x1, priv->r->imr_glb);
+
+	rtl83xx_get_l2aging(priv);
+
+	rtl83xx_setup_qos(priv);
+
+	/* Clear all destination ports for mirror groups */
+	for (i = 0; i < 4; i++)
+		priv->mirror_group_ports[i] = -1;
+
+	priv->nb.notifier_call = rtl83xx_netdevice_event;
+		if (register_netdevice_notifier(&priv->nb)) {
+			priv->nb.notifier_call = NULL;
+			dev_err(dev, "Failed to register LAG netdev notifier\n");
+	}
+
+	// Flood BPDUs to all ports including cpu-port
+	if (soc_info.family != RTL9300_FAMILY_ID) { // TODO: Port this functionality
+		bpdu_mask = soc_info.family == RTL8380_FAMILY_ID ? 0x1FFFFFFF : 0x1FFFFFFFFFFFFF;
+		priv->r->set_port_reg_be(bpdu_mask, priv->r->rma_bpdu_fld_pmask);
+
+		// TRAP 802.1X frames (EAPOL) to the CPU-Port, bypass STP and VLANs
+		sw_w32(7, priv->r->spcl_trap_eapol_ctrl);
+
+		rtl838x_dbgfs_init(priv);
+	}
+
+	return err;
+}
+
+static int rtl83xx_sw_remove(struct platform_device *pdev)
+{
+	// TODO:
+	pr_debug("Removing platform driver for rtl83xx-sw\n");
+	return 0;
+}
+
+static const struct of_device_id rtl83xx_switch_of_ids[] = {
+	{ .compatible = "realtek,rtl83xx-switch"},
+	{ /* sentinel */ }
+};
+
+
+MODULE_DEVICE_TABLE(of, rtl83xx_switch_of_ids);
+
+static struct platform_driver rtl83xx_switch_driver = {
+	.probe = rtl83xx_sw_probe,
+	.remove = rtl83xx_sw_remove,
+	.driver = {
+		.name = "rtl83xx-switch",
+		.pm = NULL,
+		.of_match_table = rtl83xx_switch_of_ids,
+	},
+};
+
+module_platform_driver(rtl83xx_switch_driver);
+
+MODULE_AUTHOR("B. Koblitz");
+MODULE_DESCRIPTION("RTL83XX SoC Switch Driver");
+MODULE_LICENSE("GPL");

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c

@@ -0,0 +1,476 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/debugfs.h>
+#include <linux/kernel.h>
+
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+#include "rtl83xx.h"
+
+#define RTL838X_DRIVER_NAME "rtl838x"
+
+#define RTL8380_LED_GLB_CTRL			(0xA000)
+#define RTL8380_LED_MODE_SEL			(0x1004)
+#define RTL8380_LED_MODE_CTRL			(0xA004)
+#define RTL8380_LED_P_EN_CTRL			(0xA008)
+#define RTL8380_LED_SW_CTRL			(0xA00C)
+#define RTL8380_LED0_SW_P_EN_CTRL		(0xA010)
+#define RTL8380_LED1_SW_P_EN_CTRL		(0xA014)
+#define RTL8380_LED2_SW_P_EN_CTRL		(0xA018)
+#define RTL8380_LED_SW_P_CTRL(p)		(0xA01C + (((p) << 2)))
+
+#define RTL8390_LED_GLB_CTRL			(0x00E4)
+#define RTL8390_LED_SET_2_3_CTRL		(0x00E8)
+#define RTL8390_LED_SET_0_1_CTRL		(0x00EC)
+#define RTL8390_LED_COPR_SET_SEL_CTRL(p)	(0x00F0 + (((p >> 4) << 2)))
+#define RTL8390_LED_FIB_SET_SEL_CTRL(p)		(0x0100 + (((p >> 4) << 2)))
+#define RTL8390_LED_COPR_PMASK_CTRL(p)		(0x0110 + (((p >> 5) << 2)))
+#define RTL8390_LED_FIB_PMASK_CTRL(p)		(0x00118 + (((p >> 5) << 2)))
+#define RTL8390_LED_COMBO_CTRL(p)		(0x0120 + (((p >> 5) << 2)))
+#define RTL8390_LED_SW_CTRL			(0x0128)
+#define RTL8390_LED_SW_P_EN_CTRL(p)		(0x012C + (((p / 10) << 2)))
+#define RTL8390_LED_SW_P_CTRL(p)		(0x0144 + (((p) << 2)))
+
+#define RTL838X_MIR_QID_CTRL(grp)		(0xAD44 + (((grp) << 2)))
+#define RTL838X_MIR_RSPAN_VLAN_CTRL(grp)	(0xA340 + (((grp) << 2)))
+#define RTL838X_MIR_RSPAN_VLAN_CTRL_MAC(grp)	(0xAA70 + (((grp) << 2)))
+#define RTL838X_MIR_RSPAN_TX_CTRL		(0xA350)
+#define RTL838X_MIR_RSPAN_TX_TAG_RM_CTRL	(0xAA80)
+#define RTL838X_MIR_RSPAN_TX_TAG_EN_CTRL	(0xAA84)
+#define RTL839X_MIR_RSPAN_VLAN_CTRL(grp)	(0xA340 + (((grp) << 2)))
+#define RTL839X_MIR_RSPAN_TX_CTRL		(0x69b0)
+#define RTL839X_MIR_RSPAN_TX_TAG_RM_CTRL	(0x2550)
+#define RTL839X_MIR_RSPAN_TX_TAG_EN_CTRL	(0x2554)
+#define RTL839X_MIR_SAMPLE_RATE_CTRL                (0x2558)
+
+int rtl83xx_port_get_stp_state(struct rtl838x_switch_priv *priv, int port);
+void rtl83xx_port_stp_state_set(struct dsa_switch *ds, int port, u8 state);
+void rtl83xx_fast_age(struct dsa_switch *ds, int port);
+u32 rtl838x_get_egress_rate(struct rtl838x_switch_priv *priv, int port);
+u32 rtl839x_get_egress_rate(struct rtl838x_switch_priv *priv, int port);
+int rtl838x_set_egress_rate(struct rtl838x_switch_priv *priv, int port, u32 rate);
+int rtl839x_set_egress_rate(struct rtl838x_switch_priv *priv, int port, u32 rate);
+
+static ssize_t rtl838x_common_read(char __user *buffer, size_t count,
+					loff_t *ppos, unsigned int value)
+{
+	char *buf;
+	ssize_t len;
+
+	if (*ppos != 0)
+		return 0;
+
+	buf = kasprintf(GFP_KERNEL, "0x%08x\n", value);
+	if (!buf)
+		return -ENOMEM;
+
+	if (count < strlen(buf)) {
+		kfree(buf);
+		return -ENOSPC;
+	}
+
+	len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
+	kfree(buf);
+
+	return len;
+}
+
+static ssize_t rtl838x_common_write(const char __user *buffer, size_t count,
+				 loff_t *ppos, unsigned int *value)
+{
+	char b[32];
+	ssize_t len;
+	int ret;
+
+	if (*ppos != 0)
+		return -EINVAL;
+
+	if (count >= sizeof(b))
+		return -ENOSPC;
+
+	len = simple_write_to_buffer(b, sizeof(b) - 1, ppos,
+				     buffer, count);
+	if (len < 0)
+		return len;
+
+	b[len] = '\0';
+	ret = kstrtouint(b, 16, value);
+	if (ret)
+		return -EIO;
+
+	return len;
+}
+
+static ssize_t stp_state_read(struct file *filp, char __user *buffer, size_t count,
+			     loff_t *ppos)
+{
+	struct rtl838x_port *p = filp->private_data;
+	struct dsa_switch *ds = p->dp->ds;
+	int value = rtl83xx_port_get_stp_state(ds->priv, p->dp->index);
+
+	if (value < 0)
+		return -EINVAL;
+
+	return rtl838x_common_read(buffer, count, ppos, (u32)value);
+}
+
+static ssize_t stp_state_write(struct file *filp, const char __user *buffer,
+				size_t count, loff_t *ppos)
+{
+	struct rtl838x_port *p = filp->private_data;
+	u32 value;
+	size_t res = rtl838x_common_write(buffer, count, ppos, &value);
+	if (res < 0)
+		return res;
+
+	rtl83xx_port_stp_state_set(p->dp->ds, p->dp->index, (u8)value);
+
+	return res;
+}
+
+static const struct file_operations stp_state_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.read = stp_state_read,
+	.write = stp_state_write,
+};
+
+static ssize_t age_out_read(struct file *filp, char __user *buffer, size_t count,
+			     loff_t *ppos)
+{
+	struct rtl838x_port *p = filp->private_data;
+	struct dsa_switch *ds = p->dp->ds;
+	struct rtl838x_switch_priv *priv = ds->priv;
+	int value = sw_r32(priv->r->l2_port_aging_out);
+
+	if (value < 0)
+		return -EINVAL;
+
+	return rtl838x_common_read(buffer, count, ppos, (u32)value);
+}
+
+static ssize_t age_out_write(struct file *filp, const char __user *buffer,
+				size_t count, loff_t *ppos)
+{
+	struct rtl838x_port *p = filp->private_data;
+	u32 value;
+	size_t res = rtl838x_common_write(buffer, count, ppos, &value);
+	if (res < 0)
+		return res;
+
+	rtl83xx_fast_age(p->dp->ds, p->dp->index);
+
+	return res;
+}
+
+static const struct file_operations age_out_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.read = age_out_read,
+	.write = age_out_write,
+};
+
+static ssize_t port_egress_rate_read(struct file *filp, char __user *buffer, size_t count,
+				loff_t *ppos)
+{
+	struct rtl838x_port *p = filp->private_data;
+	struct dsa_switch *ds = p->dp->ds;
+	struct rtl838x_switch_priv *priv = ds->priv;
+	int value;
+	if (priv->family_id == RTL8380_FAMILY_ID)
+		value = rtl838x_get_egress_rate(priv, p->dp->index);
+	else
+		value = rtl839x_get_egress_rate(priv, p->dp->index);
+
+	if (value < 0)
+		return -EINVAL;
+
+	return rtl838x_common_read(buffer, count, ppos, (u32)value);
+}
+
+static ssize_t port_egress_rate_write(struct file *filp, const char __user *buffer,
+				size_t count, loff_t *ppos)
+{
+	struct rtl838x_port *p = filp->private_data;
+	struct dsa_switch *ds = p->dp->ds;
+	struct rtl838x_switch_priv *priv = ds->priv;
+	u32 value;
+	size_t res = rtl838x_common_write(buffer, count, ppos, &value);
+	if (res < 0)
+		return res;
+
+	if (priv->family_id == RTL8380_FAMILY_ID)
+		rtl838x_set_egress_rate(priv, p->dp->index, value);
+	else
+		rtl839x_set_egress_rate(priv, p->dp->index, value);
+
+	return res;
+}
+
+static const struct file_operations port_egress_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.read = port_egress_rate_read,
+	.write = port_egress_rate_write,
+};
+
+
+static const struct debugfs_reg32 port_ctrl_regs[] = {
+	{ .name = "port_isolation", .offset = RTL838X_PORT_ISO_CTRL(0), },
+	{ .name = "mac_force_mode", .offset = RTL838X_MAC_FORCE_MODE_CTRL, },
+};
+
+void rtl838x_dbgfs_cleanup(struct rtl838x_switch_priv *priv)
+{
+	debugfs_remove_recursive(priv->dbgfs_dir);
+
+//	kfree(priv->dbgfs_entries);
+}
+
+static int rtl838x_dbgfs_port_init(struct dentry *parent, struct rtl838x_switch_priv *priv,
+				   int port)
+{
+	struct dentry *port_dir;
+	struct debugfs_regset32 *port_ctrl_regset;
+
+	port_dir = debugfs_create_dir(priv->ports[port].dp->name, parent);
+
+	if (priv->family_id == RTL8380_FAMILY_ID) {
+		debugfs_create_x32("storm_rate_uc", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_STORM_CTRL_PORT_UC(port)));
+
+		debugfs_create_x32("storm_rate_mc", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_STORM_CTRL_PORT_MC(port)));
+
+		debugfs_create_x32("storm_rate_bc", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_STORM_CTRL_PORT_BC(port)));
+
+		debugfs_create_x32("vlan_port_tag_sts_ctrl", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_VLAN_PORT_TAG_STS_CTRL 
+				+ (port << 2)));
+	} else {
+		debugfs_create_x32("storm_rate_uc", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_STORM_CTRL_PORT_UC_0(port)));
+
+		debugfs_create_x32("storm_rate_mc", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_STORM_CTRL_PORT_MC_0(port)));
+
+		debugfs_create_x32("storm_rate_bc", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_STORM_CTRL_PORT_BC_0(port)));
+
+		debugfs_create_x32("vlan_port_tag_sts_ctrl", 0644, port_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_VLAN_PORT_TAG_STS_CTRL
+				+ (port << 2)));
+	}
+
+	debugfs_create_u32("id", 0444, port_dir, (u32 *)&priv->ports[port].dp->index);
+
+	port_ctrl_regset = devm_kzalloc(priv->dev, sizeof(*port_ctrl_regset), GFP_KERNEL);
+	if (!port_ctrl_regset)
+		return -ENOMEM;
+
+	port_ctrl_regset->regs = port_ctrl_regs;
+	port_ctrl_regset->nregs = ARRAY_SIZE(port_ctrl_regs);
+	port_ctrl_regset->base = (void *)(RTL838X_SW_BASE + (port << 2));
+	debugfs_create_regset32("port_ctrl", 0400, port_dir, port_ctrl_regset);
+
+	debugfs_create_file("stp_state", 0600, port_dir, &priv->ports[port], &stp_state_fops);
+	debugfs_create_file("age_out", 0600, port_dir, &priv->ports[port], &age_out_fops);
+	debugfs_create_file("port_egress_rate", 0600, port_dir, &priv->ports[port],
+			    &port_egress_fops);
+	return 0;
+}
+
+static int rtl838x_dbgfs_leds(struct dentry *parent, struct rtl838x_switch_priv *priv)
+{
+	struct dentry *led_dir;
+	int p;
+	char led_sw_p_ctrl_name[20];
+	char port_led_name[20];
+
+	led_dir = debugfs_create_dir("led", parent);
+
+	if (priv->family_id == RTL8380_FAMILY_ID) {
+		debugfs_create_x32("led_glb_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED_GLB_CTRL));
+		debugfs_create_x32("led_mode_sel", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED_MODE_SEL));
+		debugfs_create_x32("led_mode_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED_MODE_CTRL));
+		debugfs_create_x32("led_p_en_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED_P_EN_CTRL));
+		debugfs_create_x32("led_sw_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED_SW_CTRL));
+		debugfs_create_x32("led0_sw_p_en_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED0_SW_P_EN_CTRL));
+		debugfs_create_x32("led1_sw_p_en_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED1_SW_P_EN_CTRL));
+		debugfs_create_x32("led2_sw_p_en_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED2_SW_P_EN_CTRL));
+		for (p = 0; p < 28; p++) {
+			snprintf(led_sw_p_ctrl_name, sizeof(led_sw_p_ctrl_name),
+				 "led_sw_p_ctrl.%02d", p);
+			debugfs_create_x32(led_sw_p_ctrl_name, 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8380_LED_SW_P_CTRL(p)));
+		}
+	} else if (priv->family_id == RTL8390_FAMILY_ID) {
+		debugfs_create_x32("led_glb_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_GLB_CTRL));
+		debugfs_create_x32("led_set_2_3", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_SET_2_3_CTRL));
+		debugfs_create_x32("led_set_0_1", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_SET_0_1_CTRL));
+		for (p = 0; p < 4; p++) {
+			snprintf(port_led_name, sizeof(port_led_name), "led_copr_set_sel.%1d", p);
+			debugfs_create_x32(port_led_name, 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_COPR_SET_SEL_CTRL(p << 4)));
+			snprintf(port_led_name, sizeof(port_led_name), "led_fib_set_sel.%1d", p);
+			debugfs_create_x32(port_led_name, 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_FIB_SET_SEL_CTRL(p << 4)));
+		}
+		debugfs_create_x32("led_copr_pmask_ctrl_0", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_COPR_PMASK_CTRL(0)));
+		debugfs_create_x32("led_copr_pmask_ctrl_1", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_COPR_PMASK_CTRL(32)));
+		debugfs_create_x32("led_fib_pmask_ctrl_0", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_FIB_PMASK_CTRL(0)));
+		debugfs_create_x32("led_fib_pmask_ctrl_1", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_FIB_PMASK_CTRL(32)));
+		debugfs_create_x32("led_combo_ctrl_0", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_COMBO_CTRL(0)));
+		debugfs_create_x32("led_combo_ctrl_1", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_COMBO_CTRL(32)));
+		debugfs_create_x32("led_sw_ctrl", 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_SW_CTRL));
+		for (p = 0; p < 5; p++) {
+			snprintf(port_led_name, sizeof(port_led_name), "led_sw_p_en_ctrl.%1d", p);
+			debugfs_create_x32(port_led_name, 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_SW_P_EN_CTRL(p * 10)));
+		}
+		for (p = 0; p < 28; p++) {
+			snprintf(port_led_name, sizeof(port_led_name), "led_sw_p_ctrl.%02d", p);
+			debugfs_create_x32(port_led_name, 0644, led_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL8390_LED_SW_P_CTRL(p)));
+		}
+	}
+	return 0;
+}
+
+void rtl838x_dbgfs_init(struct rtl838x_switch_priv *priv)
+{
+	struct dentry *rtl838x_dir;
+	struct dentry *port_dir;
+	struct dentry *mirror_dir;
+	struct debugfs_regset32 *port_ctrl_regset;
+	int ret, i;
+	char lag_name[10];
+	char mirror_name[10];
+
+	pr_info("%s called\n", __func__);
+	rtl838x_dir = debugfs_lookup(RTL838X_DRIVER_NAME, NULL);
+	if (!rtl838x_dir)
+		rtl838x_dir = debugfs_create_dir(RTL838X_DRIVER_NAME, NULL);
+
+	priv->dbgfs_dir = rtl838x_dir;
+
+	debugfs_create_u32("soc", 0444, rtl838x_dir,
+			   (u32 *)(RTL838X_SW_BASE + RTL838X_MODEL_NAME_INFO));
+
+	/* Create one directory per port */
+	for (i = 0; i < priv->cpu_port; i++) {
+		if (priv->ports[i].phy) {
+			ret = rtl838x_dbgfs_port_init(rtl838x_dir, priv, i);
+			if (ret)
+				goto err;
+		}
+	}
+
+	/* Create directory for CPU-port */
+	port_dir = debugfs_create_dir("cpu_port", rtl838x_dir);
+	port_ctrl_regset = devm_kzalloc(priv->dev, sizeof(*port_ctrl_regset), GFP_KERNEL);
+	if (!port_ctrl_regset) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	port_ctrl_regset->regs = port_ctrl_regs;
+	port_ctrl_regset->nregs = ARRAY_SIZE(port_ctrl_regs);
+	port_ctrl_regset->base = (void *)(RTL838X_SW_BASE + (priv->cpu_port << 2));
+	debugfs_create_regset32("port_ctrl", 0400, port_dir, port_ctrl_regset);
+	debugfs_create_u8("id", 0444, port_dir, &priv->cpu_port);
+
+	/* Create entries for LAGs */
+	for (i = 0; i < priv->n_lags; i++) {
+		snprintf(lag_name, sizeof(lag_name), "lag.%02d", i);
+		if (priv->family_id == RTL8380_FAMILY_ID)
+			debugfs_create_x32(lag_name, 0644, rtl838x_dir,
+				(u32 *)(RTL838X_SW_BASE + priv->r->trk_mbr_ctr(i)));
+		else
+			debugfs_create_x64(lag_name, 0644, rtl838x_dir,
+				(u64 *)(RTL838X_SW_BASE + priv->r->trk_mbr_ctr(i)));
+	}
+
+	/* Create directories for mirror groups */
+	for (i = 0; i < 4; i++) {
+		snprintf(mirror_name, sizeof(mirror_name), "mirror.%1d", i);
+		mirror_dir = debugfs_create_dir(mirror_name, rtl838x_dir);
+		if (priv->family_id == RTL8380_FAMILY_ID) {
+			debugfs_create_x32("ctrl", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_MIR_CTRL + i * 4));
+			debugfs_create_x32("ingress_pm", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + priv->r->mir_spm + i * 4));
+			debugfs_create_x32("egress_pm", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + priv->r->mir_dpm + i * 4));
+			debugfs_create_x32("qid", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_MIR_QID_CTRL(i)));
+			debugfs_create_x32("rspan_vlan", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_MIR_RSPAN_VLAN_CTRL(i)));
+			debugfs_create_x32("rspan_vlan_mac", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_MIR_RSPAN_VLAN_CTRL_MAC(i)));
+			debugfs_create_x32("rspan_tx", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_MIR_RSPAN_TX_CTRL));
+			debugfs_create_x32("rspan_tx_tag_rm", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_MIR_RSPAN_TX_TAG_RM_CTRL));
+			debugfs_create_x32("rspan_tx_tag_en", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_MIR_RSPAN_TX_TAG_EN_CTRL));
+		} else {
+			debugfs_create_x32("ctrl", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_MIR_CTRL + i * 4));
+			debugfs_create_x64("ingress_pm", 0644, mirror_dir,
+				(u64 *)(RTL838X_SW_BASE + priv->r->mir_spm + i * 8));
+			debugfs_create_x64("egress_pm", 0644, mirror_dir,
+				(u64 *)(RTL838X_SW_BASE + priv->r->mir_dpm + i * 8));
+			debugfs_create_x32("rspan_vlan", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_MIR_RSPAN_VLAN_CTRL(i)));
+			debugfs_create_x32("rspan_tx", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_MIR_RSPAN_TX_CTRL));
+			debugfs_create_x32("rspan_tx_tag_rm", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_MIR_RSPAN_TX_TAG_RM_CTRL));
+			debugfs_create_x32("rspan_tx_tag_en", 0644, mirror_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_MIR_RSPAN_TX_TAG_EN_CTRL));
+			debugfs_create_x64("sample_rate", 0644, mirror_dir,
+				(u64 *)(RTL838X_SW_BASE + RTL839X_MIR_SAMPLE_RATE_CTRL));
+		}
+	}
+
+	if (priv->family_id == RTL8380_FAMILY_ID)
+		debugfs_create_x32("bpdu_flood_mask", 0644, rtl838x_dir,
+				(u32 *)(RTL838X_SW_BASE + priv->r->rma_bpdu_fld_pmask));
+	else
+		debugfs_create_x64("bpdu_flood_mask", 0644, rtl838x_dir,
+				(u64 *)(RTL838X_SW_BASE + priv->r->rma_bpdu_fld_pmask));
+
+	if (priv->family_id == RTL8380_FAMILY_ID)
+		debugfs_create_x32("vlan_ctrl", 0644, rtl838x_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL838X_VLAN_CTRL));
+	else
+		debugfs_create_x32("vlan_ctrl", 0644, rtl838x_dir,
+				(u32 *)(RTL838X_SW_BASE + RTL839X_VLAN_CTRL));
+
+	ret = rtl838x_dbgfs_leds(rtl838x_dir, priv);
+	if (ret)
+		goto err;
+
+	return;
+err:
+	rtl838x_dbgfs_cleanup(priv);
+}

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/qos.c

@@ -0,0 +1,576 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <net/dsa.h>
+#include <linux/delay.h>
+
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+#include "rtl83xx.h"
+
+static struct rtl838x_switch_priv *switch_priv;
+extern struct rtl83xx_soc_info soc_info;
+
+enum scheduler_type {
+	WEIGHTED_FAIR_QUEUE = 0,
+	WEIGHTED_ROUND_ROBIN,
+};
+
+int max_available_queue[] = {0, 1, 2, 3, 4, 5, 6, 7};
+int default_queue_weights[] = {1, 1, 1, 1, 1, 1, 1, 1};
+int dot1p_priority_remapping[] = {0, 1, 2, 3, 4, 5, 6, 7};
+
+static void rtl839x_read_scheduling_table(int port)
+{
+	u32 cmd = 1 << 9 /* Execute cmd */
+		| 0 << 8 /* Read */
+		| 0 << 6 /* Table type 0b00 */
+		| (port & 0x3f);
+	rtl839x_exec_tbl2_cmd(cmd);
+}
+
+static void rtl839x_write_scheduling_table(int port)
+{
+	u32 cmd = 1 << 9 /* Execute cmd */
+		| 1 << 8 /* Write */
+		| 0 << 6 /* Table type 0b00 */
+		| (port & 0x3f);
+	rtl839x_exec_tbl2_cmd(cmd);
+}
+
+static void rtl839x_read_out_q_table(int port)
+{
+	u32 cmd = 1 << 9 /* Execute cmd */
+		| 0 << 8 /* Read */
+		| 2 << 6 /* Table type 0b10 */
+		| (port & 0x3f);
+	rtl839x_exec_tbl2_cmd(cmd);
+}
+
+static void rtl838x_storm_enable(struct rtl838x_switch_priv *priv, int port, bool enable)
+{
+	// Enable Storm control for that port for UC, MC, and BC
+	if (enable)
+		sw_w32(0x7, RTL838X_STORM_CTRL_LB_CTRL(port));
+	else
+		sw_w32(0x0, RTL838X_STORM_CTRL_LB_CTRL(port));
+}
+
+u32 rtl838x_get_egress_rate(struct rtl838x_switch_priv *priv, int port)
+{
+	u32 rate;
+
+	if (port > priv->cpu_port)
+		return 0;
+	rate = sw_r32(RTL838X_SCHED_P_EGR_RATE_CTRL(port)) & 0x3fff;
+	return rate;
+}
+
+/* Sets the rate limit, 10MBit/s is equal to a rate value of 625 */
+int rtl838x_set_egress_rate(struct rtl838x_switch_priv *priv, int port, u32 rate)
+{
+	u32 old_rate;
+
+	if (port > priv->cpu_port)
+		return -1;
+
+	old_rate = sw_r32(RTL838X_SCHED_P_EGR_RATE_CTRL(port));
+	sw_w32(rate, RTL838X_SCHED_P_EGR_RATE_CTRL(port));
+
+	return old_rate;
+}
+
+/* Set the rate limit for a particular queue in Bits/s
+ * units of the rate is 16Kbps
+ */
+void rtl838x_egress_rate_queue_limit(struct rtl838x_switch_priv *priv, int port,
+					    int queue, u32 rate)
+{
+	if (port > priv->cpu_port)
+		return;
+	if (queue > 7)
+		return;
+	sw_w32(rate, RTL838X_SCHED_Q_EGR_RATE_CTRL(port, queue));
+}
+
+static void rtl838x_rate_control_init(struct rtl838x_switch_priv *priv)
+{
+	int i;
+
+	pr_info("Enabling Storm control\n");
+	// TICK_PERIOD_PPS
+	if (priv->id == 0x8380)
+		sw_w32_mask(0x3ff << 20, 434 << 20, RTL838X_SCHED_LB_TICK_TKN_CTRL_0);
+
+	// Set burst rate
+	sw_w32(0x00008000, RTL838X_STORM_CTRL_BURST_0); // UC
+	sw_w32(0x80008000, RTL838X_STORM_CTRL_BURST_1); // MC and BC
+
+	// Set burst Packets per Second to 32
+	sw_w32(0x00000020, RTL838X_STORM_CTRL_BURST_PPS_0); // UC
+	sw_w32(0x00200020, RTL838X_STORM_CTRL_BURST_PPS_1); // MC and BC
+
+	// Include IFG in storm control, rate based on bytes/s (0 = packets)
+	sw_w32_mask(0, 1 << 6 | 1 << 5, RTL838X_STORM_CTRL);
+	// Bandwidth control includes preamble and IFG (10 Bytes)
+	sw_w32_mask(0, 1, RTL838X_SCHED_CTRL);
+
+	// On SoCs except RTL8382M, set burst size of port egress
+	if (priv->id != 0x8382)
+		sw_w32_mask(0xffff, 0x800, RTL838X_SCHED_LB_THR);
+
+	/* Enable storm control on all ports with a PHY and limit rates,
+	 * for UC and MC for both known and unknown addresses */
+	for (i = 0; i < priv->cpu_port; i++) {
+		if (priv->ports[i].phy) {
+			sw_w32((1 << 18) | 0x8000, RTL838X_STORM_CTRL_PORT_UC(i));
+			sw_w32((1 << 18) | 0x8000, RTL838X_STORM_CTRL_PORT_MC(i));
+			sw_w32(0x8000, RTL838X_STORM_CTRL_PORT_BC(i));
+			rtl838x_storm_enable(priv, i, true);
+		}
+	}
+
+	// Attack prevention, enable all attack prevention measures
+	//sw_w32(0x1ffff, RTL838X_ATK_PRVNT_CTRL);
+	/* Attack prevention, drop (bit = 0) problematic packets on all ports.
+	 * Setting bit = 1 means: trap to CPU
+	 */
+	//sw_w32(0, RTL838X_ATK_PRVNT_ACT);
+	// Enable attack prevention on all ports
+	//sw_w32(0x0fffffff, RTL838X_ATK_PRVNT_PORT_EN);
+}
+
+/* Sets the rate limit, 10MBit/s is equal to a rate value of 625 */
+u32 rtl839x_get_egress_rate(struct rtl838x_switch_priv *priv, int port)
+{
+	u32 rate;
+
+	pr_debug("%s: Getting egress rate on port %d to %d\n", __func__, port, rate);
+	if (port >= priv->cpu_port)
+		return 0;
+
+	mutex_lock(&priv->reg_mutex);
+
+	rtl839x_read_scheduling_table(port);
+
+	rate = sw_r32(RTL839X_TBL_ACCESS_DATA_2(7));
+	rate <<= 12;
+	rate |= sw_r32(RTL839X_TBL_ACCESS_DATA_2(8)) >> 20;
+
+	mutex_unlock(&priv->reg_mutex);
+
+	return rate;
+}
+
+/* Sets the rate limit, 10MBit/s is equal to a rate value of 625, returns previous rate */
+int rtl839x_set_egress_rate(struct rtl838x_switch_priv *priv, int port, u32 rate)
+{
+	u32 old_rate;
+
+	pr_debug("%s: Setting egress rate on port %d to %d\n", __func__, port, rate);
+	if (port >= priv->cpu_port)
+		return -1;
+
+	mutex_lock(&priv->reg_mutex);
+
+	rtl839x_read_scheduling_table(port);
+
+	old_rate = sw_r32(RTL839X_TBL_ACCESS_DATA_2(7)) & 0xff;
+	old_rate <<= 12;
+	old_rate |= sw_r32(RTL839X_TBL_ACCESS_DATA_2(8)) >> 20;
+	sw_w32_mask(0xff, (rate >> 12) & 0xff, RTL839X_TBL_ACCESS_DATA_2(7));
+	sw_w32_mask(0xfff << 20, rate << 20, RTL839X_TBL_ACCESS_DATA_2(8));
+
+	rtl839x_write_scheduling_table(port);
+	
+	mutex_unlock(&priv->reg_mutex);
+
+	return old_rate;
+}
+
+/* Set the rate limit for a particular queue in Bits/s
+ * units of the rate is 16Kbps
+ */
+void rtl839x_egress_rate_queue_limit(struct rtl838x_switch_priv *priv, int port,
+					int queue, u32 rate)
+{
+	int lsb = 128 + queue * 20;
+	int low_byte = 8 - (lsb >> 5);
+	int start_bit = lsb - (low_byte << 5);
+	u32 high_mask = 0xfffff	>> (32 - start_bit);
+
+	pr_debug("%s: Setting egress rate on port %d, queue %d to %d\n",
+		__func__, port, queue, rate);
+	if (port >= priv->cpu_port)
+		return;
+	if (queue > 7)
+		return;
+
+	mutex_lock(&priv->reg_mutex);
+
+	rtl839x_read_scheduling_table(port);
+
+	sw_w32_mask(0xfffff << start_bit, (rate & 0xfffff) << start_bit,
+		    RTL839X_TBL_ACCESS_DATA_2(low_byte));
+	if (high_mask)
+		sw_w32_mask(high_mask, (rate & 0xfffff) >> (32- start_bit),
+			    RTL839X_TBL_ACCESS_DATA_2(low_byte - 1));
+
+	rtl839x_write_scheduling_table(port);
+
+	mutex_unlock(&priv->reg_mutex);
+}
+
+static void rtl839x_rate_control_init(struct rtl838x_switch_priv *priv)
+{
+	int p, q;
+
+	pr_info("%s: enabling rate control\n", __func__);
+	/* Tick length and token size settings for SoC with 250MHz,
+	 * RTL8350 family would use 50MHz
+	 */
+	// Set the special tick period
+	sw_w32(976563, RTL839X_STORM_CTRL_SPCL_LB_TICK_TKN_CTRL);
+	// Ingress tick period and token length 10G
+	sw_w32(18 << 11 | 151, RTL839X_IGR_BWCTRL_LB_TICK_TKN_CTRL_0);
+	// Ingress tick period and token length 1G
+	sw_w32(245 << 11 | 129, RTL839X_IGR_BWCTRL_LB_TICK_TKN_CTRL_1);
+	// Egress tick period 10G, bytes/token 10G and tick period 1G, bytes/token 1G
+	sw_w32(18 << 24 | 151 << 16 | 185 << 8 | 97, RTL839X_SCHED_LB_TICK_TKN_CTRL);
+	// Set the tick period of the CPU and the Token Len
+	sw_w32(3815 << 8 | 1, RTL839X_SCHED_LB_TICK_TKN_PPS_CTRL);
+
+	// Set the Weighted Fair Queueing burst size
+	sw_w32_mask(0xffff, 4500, RTL839X_SCHED_LB_THR);
+
+	// Storm-rate calculation is based on bytes/sec (bit 5), include IFG (bit 6)
+	sw_w32_mask(0, 1 << 5 | 1 << 6, RTL839X_STORM_CTRL);
+
+	/* Based on the rate control mode being bytes/s
+	 * set tick period and token length for 10G
+	 */
+	sw_w32(18 << 10 | 151, RTL839X_STORM_CTRL_LB_TICK_TKN_CTRL_0);
+	/* and for 1G ports */
+	sw_w32(246 << 10 | 129, RTL839X_STORM_CTRL_LB_TICK_TKN_CTRL_1);
+
+	/* Set default burst rates on all ports (the same for 1G / 10G) with a PHY
+	 * for UC, MC and BC
+	 * For 1G port, the minimum burst rate is 1700, maximum 65535,
+	 * For 10G ports it is 2650 and 1048575 respectively */
+	for (p = 0; p < priv->cpu_port; p++) {
+		if (priv->ports[p].phy && !priv->ports[p].is10G) {
+			sw_w32_mask(0xffff, 0x8000, RTL839X_STORM_CTRL_PORT_UC_1(p));
+			sw_w32_mask(0xffff, 0x8000, RTL839X_STORM_CTRL_PORT_MC_1(p));
+			sw_w32_mask(0xffff, 0x8000, RTL839X_STORM_CTRL_PORT_BC_1(p));
+		}
+	}
+
+	/* Setup ingress/egress per-port rate control */
+	for (p = 0; p < priv->cpu_port; p++) {
+		if (!priv->ports[p].phy)
+			continue;
+
+		if (priv->ports[p].is10G)
+			rtl839x_set_egress_rate(priv, p, 625000); // 10GB/s
+		else
+			rtl839x_set_egress_rate(priv, p, 62500);  // 1GB/s
+
+		// Setup queues: all RTL83XX SoCs have 8 queues, maximum rate
+		for (q = 0; q < 8; q++)
+			rtl839x_egress_rate_queue_limit(priv, p, q, 0xfffff);
+
+		if (priv->ports[p].is10G) {
+			// Set high threshold to maximum
+			sw_w32_mask(0xffff, 0xffff, RTL839X_IGR_BWCTRL_PORT_CTRL_10G_0(p));
+		} else {
+			// Set high threshold to maximum
+			sw_w32_mask(0xffff, 0xffff, RTL839X_IGR_BWCTRL_PORT_CTRL_1(p));
+		}
+	}
+
+	// Set global ingress low watermark rate
+	sw_w32(65532, RTL839X_IGR_BWCTRL_CTRL_LB_THR);
+}
+
+
+
+void rtl838x_setup_prio2queue_matrix(int *min_queues)
+{
+	int i;
+	u32 v;
+
+	pr_info("Current Intprio2queue setting: %08x\n", sw_r32(RTL838X_QM_INTPRI2QID_CTRL));
+	for (i = 0; i < MAX_PRIOS; i++)
+		v |= i << (min_queues[i] * 3);
+	sw_w32(v, RTL838X_QM_INTPRI2QID_CTRL);
+}
+
+void rtl839x_setup_prio2queue_matrix(int *min_queues)
+{
+	int i, q;
+
+	pr_info("Current Intprio2queue setting: %08x\n", sw_r32(RTL839X_QM_INTPRI2QID_CTRL(0)));
+	for (i = 0; i < MAX_PRIOS; i++) {
+		q = min_queues[i];
+		sw_w32(i << (q * 3), RTL839X_QM_INTPRI2QID_CTRL(q));
+	}
+}
+
+/* Sets the CPU queue depending on the internal priority of a packet */
+void rtl83xx_setup_prio2queue_cpu_matrix(int *max_queues)
+{
+	int reg = soc_info.family == RTL8380_FAMILY_ID ? RTL838X_QM_PKT2CPU_INTPRI_MAP 
+					: RTL839X_QM_PKT2CPU_INTPRI_MAP;
+	int i;
+	u32 v;
+
+	pr_info("QM_PKT2CPU_INTPRI_MAP: %08x\n", sw_r32(reg));
+	for (i = 0; i < MAX_PRIOS; i++)
+		v |= max_queues[i] << (i * 3);
+	sw_w32(v, reg);
+}
+
+void rtl83xx_setup_default_prio2queue(void)
+{
+	if (soc_info.family == RTL8380_FAMILY_ID) {
+		rtl838x_setup_prio2queue_matrix(max_available_queue);
+	} else {
+		rtl839x_setup_prio2queue_matrix(max_available_queue);
+	}
+	rtl83xx_setup_prio2queue_cpu_matrix(max_available_queue);
+}
+
+/* Sets the output queue assigned to a port, the port can be the CPU-port */
+void rtl839x_set_egress_queue(int port, int queue)
+{
+	sw_w32(queue << ((port % 10) *3), RTL839X_QM_PORT_QNUM(port));
+}
+
+/* Sets the priority assigned of an ingress port, the port can be the CPU-port */
+void rtl83xx_set_ingress_priority(int port, int priority)
+{
+	if (soc_info.family == RTL8380_FAMILY_ID)
+		sw_w32(priority << ((port % 10) *3), RTL838X_PRI_SEL_PORT_PRI(port));
+	else
+		sw_w32(priority << ((port % 10) *3), RTL839X_PRI_SEL_PORT_PRI(port));
+	
+}
+
+int rtl839x_get_scheduling_algorithm(struct rtl838x_switch_priv *priv, int port)
+{
+	u32 v;
+
+	mutex_lock(&priv->reg_mutex);
+
+	rtl839x_read_scheduling_table(port);
+	v = sw_r32(RTL839X_TBL_ACCESS_DATA_2(8));
+
+	mutex_unlock(&priv->reg_mutex);
+
+	if (v & BIT(19))
+		return WEIGHTED_ROUND_ROBIN;
+	return WEIGHTED_FAIR_QUEUE;
+}
+
+void rtl839x_set_scheduling_algorithm(struct rtl838x_switch_priv *priv, int port,
+				      enum scheduler_type sched)
+{
+	enum scheduler_type t = rtl839x_get_scheduling_algorithm(priv, port);
+	u32 v, oam_state, oam_port_state;
+	u32 count;
+	int i, egress_rate;
+
+	mutex_lock(&priv->reg_mutex);
+	/* Check whether we need to empty the egress queue of that port due to Errata E0014503 */
+	if (sched == WEIGHTED_FAIR_QUEUE && t == WEIGHTED_ROUND_ROBIN && port != priv->cpu_port) {
+		// Read Operations, Adminstatrion and Management control register
+		oam_state = sw_r32(RTL839X_OAM_CTRL);
+
+		// Get current OAM state
+		oam_port_state = sw_r32(RTL839X_OAM_PORT_ACT_CTRL(port));
+	
+		// Disable OAM to block traffice
+		v = sw_r32(RTL839X_OAM_CTRL);
+		sw_w32_mask(0, 1, RTL839X_OAM_CTRL);
+		v = sw_r32(RTL839X_OAM_CTRL);
+
+		// Set to trap action OAM forward (bits 1, 2) and OAM Mux Action Drop (bit 0)
+		sw_w32(0x2, RTL839X_OAM_PORT_ACT_CTRL(port));
+
+		// Set port egress rate to unlimited
+		egress_rate = rtl839x_set_egress_rate(priv, port, 0xFFFFF);
+	
+		// Wait until the egress used page count of that port is 0
+		i = 0;
+		do {
+			usleep_range(100, 200);
+			rtl839x_read_out_q_table(port);
+			count = sw_r32(RTL839X_TBL_ACCESS_DATA_2(6));
+			count >>= 20;
+			i++;
+		} while (i < 3500 && count > 0);
+	}
+
+	// Actually set the scheduling algorithm
+	rtl839x_read_scheduling_table(port);
+	sw_w32_mask(BIT(19), sched ? BIT(19) : 0, RTL839X_TBL_ACCESS_DATA_2(8));
+	rtl839x_write_scheduling_table(port);
+
+	if (sched == WEIGHTED_FAIR_QUEUE && t == WEIGHTED_ROUND_ROBIN && port != priv->cpu_port) {
+		// Restore OAM state to control register
+		sw_w32(oam_state, RTL839X_OAM_CTRL);
+
+		// Restore trap action state
+		sw_w32(oam_port_state, RTL839X_OAM_PORT_ACT_CTRL(port));
+
+		// Restore port egress rate
+		rtl839x_set_egress_rate(priv, port, egress_rate);
+	}
+
+	mutex_unlock(&priv->reg_mutex);
+}
+
+void rtl839x_set_scheduling_queue_weights(struct rtl838x_switch_priv *priv, int port,
+					  int *queue_weights)
+{
+	int i, lsb, low_byte, start_bit, high_mask;
+
+	mutex_lock(&priv->reg_mutex);
+
+	rtl839x_read_scheduling_table(port);
+
+	for (i = 0; i < 8; i++) {
+		lsb = 48 + i * 8;
+		low_byte = 8 - (lsb >> 5);
+		start_bit = lsb - (low_byte << 5);
+		high_mask = 0x3ff >> (32 - start_bit);
+		sw_w32_mask(0x3ff << start_bit, (queue_weights[i] & 0x3ff) << start_bit,
+				RTL839X_TBL_ACCESS_DATA_2(low_byte));
+		if (high_mask)
+			sw_w32_mask(high_mask, (queue_weights[i] & 0x3ff) >> (32- start_bit),
+					RTL839X_TBL_ACCESS_DATA_2(low_byte - 1));
+	}
+
+	rtl839x_write_scheduling_table(port);
+	mutex_unlock(&priv->reg_mutex);
+}
+
+void rtl838x_config_qos(void)
+{
+	int i, p;
+	u32 v;
+
+	pr_info("Setting up RTL838X QoS\n");
+	pr_info("RTL838X_PRI_SEL_TBL_CTRL(i): %08x\n", sw_r32(RTL838X_PRI_SEL_TBL_CTRL(0)));
+	rtl83xx_setup_default_prio2queue();
+
+	// Enable inner (bit 12) and outer (bit 13) priority remapping from DSCP
+	sw_w32_mask(0, BIT(12) | BIT(13), RTL838X_PRI_DSCP_INVLD_CTRL0);
+
+	/* Set default weight for calculating internal priority, in prio selection group 0
+	 * Port based (prio 3), Port outer-tag (4), DSCP (5), Inner Tag (6), Outer Tag (7)
+	 */
+	v = 3 | (4 << 3) | (5 << 6) | (6 << 9) | (7 << 12);
+	sw_w32(v, RTL838X_PRI_SEL_TBL_CTRL(0));
+
+	// Set the inner and outer priority one-to-one to re-marked outer dot1p priority
+	v = 0;
+	for (p = 0; p < 8; p++)
+		v |= p << (3 * p);
+	sw_w32(v, RTL838X_RMK_OPRI_CTRL);
+	sw_w32(v, RTL838X_RMK_IPRI_CTRL);
+
+	v = 0;
+	for (p = 0; p < 8; p++)
+		v |= (dot1p_priority_remapping[p] & 0x7) << (p * 3);
+	sw_w32(v, RTL838X_PRI_SEL_IPRI_REMAP);
+
+	// On all ports set scheduler type to WFQ
+	for (i = 0; i <= soc_info.cpu_port; i++)
+		sw_w32(0, RTL838X_SCHED_P_TYPE_CTRL(i));
+
+	// Enable egress scheduler for CPU-Port
+	sw_w32_mask(0, BIT(8), RTL838X_SCHED_LB_CTRL(soc_info.cpu_port));
+
+	// Enable egress drop allways on
+	sw_w32_mask(0, BIT(11), RTL838X_FC_P_EGR_DROP_CTRL(soc_info.cpu_port));
+
+	// Give special trap frames priority 7 (BPDUs) and routing exceptions:
+	sw_w32_mask(0, 7 << 3 | 7, RTL838X_QM_PKT2CPU_INTPRI_2);
+	// Give RMA frames priority 7:
+	sw_w32_mask(0, 7, RTL838X_QM_PKT2CPU_INTPRI_1);
+}
+
+void rtl839x_config_qos(void)
+{
+	int port, p, q;
+	u32 v;
+	struct rtl838x_switch_priv *priv = switch_priv;
+
+	pr_info("Setting up RTL839X QoS\n");
+	pr_info("RTL839X_PRI_SEL_TBL_CTRL(i): %08x\n", sw_r32(RTL839X_PRI_SEL_TBL_CTRL(0)));
+	rtl83xx_setup_default_prio2queue();
+
+	for (port = 0; port < soc_info.cpu_port; port++)
+		sw_w32(7, RTL839X_QM_PORT_QNUM(port));
+
+	// CPU-port gets queue number 7
+	sw_w32(7, RTL839X_QM_PORT_QNUM(soc_info.cpu_port));
+
+	for (port = 0; port <= soc_info.cpu_port; port++) {
+		rtl83xx_set_ingress_priority(port, 0);
+		rtl839x_set_scheduling_algorithm(priv, port, WEIGHTED_FAIR_QUEUE);
+		rtl839x_set_scheduling_queue_weights(priv, port, default_queue_weights);
+		// Do re-marking based on outer tag
+		sw_w32_mask(0, BIT(port % 32), RTL839X_RMK_PORT_DEI_TAG_CTRL(port));
+	}
+
+	// Remap dot1p priorities to internal priority, for this the outer tag needs be re-marked
+	v = 0;
+	for (p = 0; p < 8; p++)
+		v |= (dot1p_priority_remapping[p] & 0x7) << (p * 3);
+	sw_w32(v, RTL839X_PRI_SEL_IPRI_REMAP);
+	
+	/* Configure Drop Precedence for Drop Eligible Indicator (DEI)
+	 * Index 0: 0
+	 * Index 1: 2
+	 * Each indicator is 2 bits long
+	 */
+	sw_w32(2 << 2, RTL839X_PRI_SEL_DEI2DP_REMAP);
+
+	// Re-mark DEI: 4 bit-fields of 2 bits each, field 0 is bits 0-1, ...
+	sw_w32((0x1 << 2) | (0x1 << 4), RTL839X_RMK_DEI_CTRL);
+
+	/* Set Congestion avoidance drop probability to 0 for drop precedences 0-2 (bits 24-31)
+	 * low threshold (bits 0-11) to 4095 and high threshold (bits 12-23) to 4095
+	 * Weighted Random Early Detection (WRED) is used
+	 */
+	sw_w32(4095 << 12| 4095, RTL839X_WRED_PORT_THR_CTRL(0));
+	sw_w32(4095 << 12| 4095, RTL839X_WRED_PORT_THR_CTRL(1));
+	sw_w32(4095 << 12| 4095, RTL839X_WRED_PORT_THR_CTRL(2));
+
+	/* Set queue-based congestion avoidance properties, register fields are as
+	 * for forward RTL839X_WRED_PORT_THR_CTRL
+	 */
+	for (q = 0; q < 8; q++) {
+		sw_w32(255 << 24 | 78 << 12 | 68, RTL839X_WRED_QUEUE_THR_CTRL(q, 0));
+		sw_w32(255 << 24 | 74 << 12 | 64, RTL839X_WRED_QUEUE_THR_CTRL(q, 0));
+		sw_w32(255 << 24 | 70 << 12 | 60, RTL839X_WRED_QUEUE_THR_CTRL(q, 0));
+	}
+}
+
+void __init rtl83xx_setup_qos(struct rtl838x_switch_priv *priv)
+{
+	switch_priv = priv;
+
+	pr_info("In %s\n", __func__);
+
+	if (priv->family_id == RTL8380_FAMILY_ID)
+		return rtl838x_config_qos();
+	else if (priv->family_id == RTL8390_FAMILY_ID)
+		return rtl839x_config_qos();
+
+	if (priv->family_id == RTL8380_FAMILY_ID)
+		rtl838x_rate_control_init(priv);
+	else if (priv->family_id == RTL8390_FAMILY_ID)
+		rtl839x_rate_control_init(priv);
+	
+}

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c

@@ -0,0 +1,859 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+#include "rtl83xx.h"
+
+extern struct mutex smi_lock;
+
+void rtl838x_print_matrix(void)
+{
+	unsigned volatile int *ptr8;
+	int i;
+
+	ptr8 = RTL838X_SW_BASE + RTL838X_PORT_ISO_CTRL(0);
+	for (i = 0; i < 28; i += 8)
+		pr_debug("> %8x %8x %8x %8x %8x %8x %8x %8x\n",
+			ptr8[i + 0], ptr8[i + 1], ptr8[i + 2], ptr8[i + 3],
+			ptr8[i + 4], ptr8[i + 5], ptr8[i + 6], ptr8[i + 7]);
+	pr_debug("CPU_PORT> %8x\n", ptr8[28]);
+}
+
+static inline int rtl838x_port_iso_ctrl(int p)
+{
+	return RTL838X_PORT_ISO_CTRL(p);
+}
+
+static inline void rtl838x_exec_tbl0_cmd(u32 cmd)
+{
+	sw_w32(cmd, RTL838X_TBL_ACCESS_CTRL_0);
+	do { } while (sw_r32(RTL838X_TBL_ACCESS_CTRL_0) & BIT(15));
+}
+
+static inline void rtl838x_exec_tbl1_cmd(u32 cmd)
+{
+	sw_w32(cmd, RTL838X_TBL_ACCESS_CTRL_1);
+	do { } while (sw_r32(RTL838X_TBL_ACCESS_CTRL_1) & BIT(15));
+}
+
+static inline int rtl838x_tbl_access_data_0(int i)
+{
+	return RTL838X_TBL_ACCESS_DATA_0(i);
+}
+
+static void rtl838x_vlan_tables_read(u32 vlan, struct rtl838x_vlan_info *info)
+{
+	u32 v;
+	// Read VLAN table (0) via register 0
+	struct table_reg *r = rtl_table_get(RTL8380_TBL_0, 0);
+
+	rtl_table_read(r, vlan);
+	info->tagged_ports = sw_r32(rtl_table_data(r, 0));
+	v = sw_r32(rtl_table_data(r, 1));
+	pr_debug("VLAN_READ %d: %016llx %08x\n", vlan, info->tagged_ports, v);
+	rtl_table_release(r);
+
+	info->profile_id = v & 0x7;
+	info->hash_mc_fid = !!(v & 0x8);
+	info->hash_uc_fid = !!(v & 0x10);
+	info->fid = (v >> 5) & 0x3f;
+
+	// Read UNTAG table (0) via table register 1
+	r = rtl_table_get(RTL8380_TBL_1, 0);
+	rtl_table_read(r, vlan);
+	info->untagged_ports = sw_r32(rtl_table_data(r, 0));
+	rtl_table_release(r);
+}
+
+static void rtl838x_vlan_set_tagged(u32 vlan, struct rtl838x_vlan_info *info)
+{
+	u32 v;
+	// Access VLAN table (0) via register 0
+	struct table_reg *r = rtl_table_get(RTL8380_TBL_0, 0);
+
+	sw_w32(info->tagged_ports, rtl_table_data(r, 0));
+
+	v = info->profile_id;
+	v |= info->hash_mc_fid ? 0x8 : 0;
+	v |= info->hash_uc_fid ? 0x10 : 0;
+	v |= ((u32)info->fid) << 5;
+	sw_w32(v, rtl_table_data(r, 1));
+
+	rtl_table_write(r, vlan);
+	rtl_table_release(r);
+}
+
+static void rtl838x_vlan_set_untagged(u32 vlan, u64 portmask)
+{
+	// Access UNTAG table (0) via register 1
+	struct table_reg *r = rtl_table_get(RTL8380_TBL_1, 0);
+
+	sw_w32(portmask & 0x1fffffff, rtl_table_data(r, 0));
+	rtl_table_write(r, vlan);
+	rtl_table_release(r);
+}
+
+/* Sets the L2 forwarding to be based on either the inner VLAN tag or the outer
+ */
+static void rtl838x_vlan_fwd_on_inner(int port, bool is_set)
+{
+	if (is_set)
+		sw_w32_mask(BIT(port), 0, RTL838X_VLAN_PORT_FWD);
+	else
+		sw_w32_mask(0, BIT(port), RTL838X_VLAN_PORT_FWD);
+}
+
+static u64 rtl838x_l2_hash_seed(u64 mac, u32 vid)
+{
+	return mac << 12 | vid;
+}
+
+/*
+ * Applies the same hash algorithm as the one used currently by the ASIC to the seed
+ * and returns a key into the L2 hash table
+ */
+static u32 rtl838x_l2_hash_key(struct rtl838x_switch_priv *priv, u64 seed)
+{
+	u32 h1, h2, h3, h;
+
+	if (sw_r32(priv->r->l2_ctrl_0) & 1) {
+		h1 = (seed >> 11) & 0x7ff;
+		h1 = ((h1 & 0x1f) << 6) | ((h1 >> 5) & 0x3f);
+
+		h2 = (seed >> 33) & 0x7ff;
+		h2 = ((h2 & 0x3f) << 5) | ((h2 >> 6) & 0x1f);
+
+		h3 = (seed >> 44) & 0x7ff;
+		h3 = ((h3 & 0x7f) << 4) | ((h3 >> 7) & 0xf);
+
+		h = h1 ^ h2 ^ h3 ^ ((seed >> 55) & 0x1ff);
+		h ^= ((seed >> 22) & 0x7ff) ^ (seed & 0x7ff);
+	} else {
+		h = ((seed >> 55) & 0x1ff) ^ ((seed >> 44) & 0x7ff)
+			^ ((seed >> 33) & 0x7ff) ^ ((seed >> 22) & 0x7ff)
+			^ ((seed >> 11) & 0x7ff) ^ (seed & 0x7ff);
+	}
+
+	return h;
+}
+
+static inline int rtl838x_mac_force_mode_ctrl(int p)
+{
+	return RTL838X_MAC_FORCE_MODE_CTRL + (p << 2);
+}
+
+static inline int rtl838x_mac_port_ctrl(int p)
+{
+	return RTL838X_MAC_PORT_CTRL(p);
+}
+
+static inline int rtl838x_l2_port_new_salrn(int p)
+{
+	return RTL838X_L2_PORT_NEW_SALRN(p);
+}
+
+static inline int rtl838x_l2_port_new_sa_fwd(int p)
+{
+	return RTL838X_L2_PORT_NEW_SA_FWD(p);
+}
+
+static inline int rtl838x_mac_link_spd_sts(int p)
+{
+	return RTL838X_MAC_LINK_SPD_STS(p);
+}
+
+inline static int rtl838x_trk_mbr_ctr(int group)
+{
+	return RTL838X_TRK_MBR_CTR + (group << 2);
+}
+
+/*
+ * Fills an L2 entry structure from the SoC registers
+ */
+static void rtl838x_fill_l2_entry(u32 r[], struct rtl838x_l2_entry *e)
+{
+	/* Table contains different entry types, we need to identify the right one:
+	 * Check for MC entries, first
+	 * In contrast to the RTL93xx SoCs, there is no valid bit, use heuristics to
+	 * identify valid entries
+	 */
+	e->is_ip_mc = !!(r[0] & BIT(22));
+	e->is_ipv6_mc = !!(r[0] & BIT(21));
+	e->type = L2_INVALID;
+
+	if (!e->is_ip_mc && !e->is_ipv6_mc) {
+		e->mac[0] = (r[1] >> 20);
+		e->mac[1] = (r[1] >> 12);
+		e->mac[2] = (r[1] >> 4);
+		e->mac[3] = (r[1] & 0xf) << 4 | (r[2] >> 28);
+		e->mac[4] = (r[2] >> 20);
+		e->mac[5] = (r[2] >> 12);
+
+		e->rvid = r[2] & 0xfff;
+		e->vid = r[0] & 0xfff;
+
+		/* Is it a unicast entry? check multicast bit */
+		if (!(e->mac[0] & 1)) {
+			e->is_static = !!((r[0] >> 19) & 1);
+			e->port = (r[0] >> 12) & 0x1f;
+			e->block_da = !!(r[1] & BIT(30));
+			e->block_sa = !!(r[1] & BIT(31));
+			e->suspended = !!(r[1] & BIT(29));
+			e->next_hop = !!(r[1] & BIT(28));
+			if (e->next_hop) {
+				pr_info("Found next hop entry, need to read extra data\n");
+				e->nh_vlan_target = !!(r[0] & BIT(9));
+				e->nh_route_id = r[0] & 0x1ff;
+			}
+			e->age = (r[0] >> 17) & 0x3;
+			e->valid = true;
+			
+			/* A valid entry has one of mutli-cast, aging, sa/da-blocking,
+			 * next-hop or static entry bit set */
+			if (!(r[0] & 0x007c0000) && !(r[1] & 0xd0000000))
+				e->valid = false;
+			else
+				e->type = L2_UNICAST;
+		} else { // L2 multicast
+			pr_info("Got L2 MC entry: %08x %08x %08x\n", r[0], r[1], r[2]);
+			e->valid = true;
+			e->type = L2_MULTICAST;
+			e->mc_portmask_index = (r[0] >> 12) & 0x1ff;
+		}
+	} else { // IPv4 and IPv6 multicast
+		e->valid = true;
+		e->mc_portmask_index = (r[0] >> 12) & 0x1ff;
+		e->mc_gip = r[1];
+		e->mc_sip = r[2];
+		e->rvid = r[0] & 0xfff;
+	}
+	if (e->is_ip_mc)
+		e->type = IP4_MULTICAST;
+	if (e->is_ipv6_mc)
+		e->type = IP6_MULTICAST;
+}
+
+/*
+ * Fills the 3 SoC table registers r[] with the information of in the rtl838x_l2_entry
+ */
+static void rtl838x_fill_l2_row(u32 r[], struct rtl838x_l2_entry *e)
+{
+	u64 mac = ether_addr_to_u64(e->mac);
+
+	if (!e->valid) {
+		r[0] = r[1] = r[2] = 0;
+		return;
+	}
+
+	r[0] = e->is_ip_mc ? BIT(22) : 0;
+	r[0] |= e->is_ipv6_mc ? BIT(21) : 0;
+
+	if (!e->is_ip_mc && !e->is_ipv6_mc) {
+		r[1] = mac >> 20;
+		r[2] = (mac & 0xfffff) << 12;
+
+		/* Is it a unicast entry? check multicast bit */
+		if (!(e->mac[0] & 1)) {
+			r[0] |= e->is_static ? BIT(19) : 0;
+			r[0] |= (e->port & 0x3f) << 12;
+			r[0] |= e->vid;
+			r[1] |= e->block_da ? BIT(30) : 0;
+			r[1] |= e->block_sa ? BIT(31) : 0;
+			r[1] |= e->suspended ? BIT(29) : 0;
+			r[2] |= e->rvid & 0xfff;
+			if (e->next_hop) {
+				r[1] |= BIT(28);
+				r[0] |= e->nh_vlan_target ? BIT(9) : 0;
+				r[0] |= e->nh_route_id &0x1ff;
+			}
+			r[0] |= (e->age & 0x3) << 17;
+		} else { // L2 Multicast
+			r[0] |= (e->mc_portmask_index & 0x1ff) << 12;
+			r[2] |= e->rvid & 0xfff;
+			r[0] |= e->vid & 0xfff;
+			pr_info("FILL MC: %08x %08x %08x\n", r[0], r[1], r[2]);
+		}
+	} else { // IPv4 and IPv6 multicast
+		r[1] = e->mc_gip;
+		r[2] = e->mc_sip;
+		r[0] |= e->rvid;
+	}
+}
+
+/*
+ * Read an L2 UC or MC entry out of a hash bucket of the L2 forwarding table
+ * hash is the id of the bucket and pos is the position of the entry in that bucket
+ * The data read from the SoC is filled into rtl838x_l2_entry
+ */
+static u64 rtl838x_read_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
+{
+	u64 entry;
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 0); // Access L2 Table 0
+	u32 idx = (0 << 14) | (hash << 2) | pos; // Search SRAM, with hash and at pos in bucket
+	int i;
+
+	rtl_table_read(q, idx);
+	for (i= 0; i < 3; i++)
+		r[i] = sw_r32(rtl_table_data(q, i));
+
+	rtl_table_release(q);
+
+	rtl838x_fill_l2_entry(r, e);
+	if (!e->valid)
+		return 0;
+
+	entry = (((u64) r[1]) << 32) | (r[2] & 0xfffff000) | (r[0] & 0xfff);
+	return entry;
+}
+
+static void rtl838x_write_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
+{
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 0);
+	int i;
+
+	u32 idx = (0 << 14) | (hash << 2) | pos; // Access SRAM, with hash and at pos in bucket
+
+	rtl838x_fill_l2_row(r, e);
+
+	for (i= 0; i < 3; i++)
+		sw_w32(r[i], rtl_table_data(q, i));
+
+	rtl_table_write(q, idx);
+	rtl_table_release(q);
+}
+
+static u64 rtl838x_read_cam(int idx, struct rtl838x_l2_entry *e)
+{
+	u64 entry;
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 1); // Access L2 Table 1
+	int i;
+
+	rtl_table_read(q, idx);
+	for (i= 0; i < 3; i++)
+		r[i] = sw_r32(rtl_table_data(q, i));
+
+	rtl_table_release(q);
+
+	rtl838x_fill_l2_entry(r, e);
+	if (!e->valid)
+		return 0;
+
+	pr_debug("Found in CAM: R1 %x R2 %x R3 %x\n", r[0], r[1], r[2]);
+
+	// Return MAC with concatenated VID ac concatenated ID
+	entry = (((u64) r[1]) << 32) | (r[2] & 0xfffff000) | (r[0] & 0xfff);
+	return entry;
+}
+
+static void rtl838x_write_cam(int idx, struct rtl838x_l2_entry *e)
+{
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 1); // Access L2 Table 1
+	int i;
+
+	rtl838x_fill_l2_row(r, e);
+
+	for (i= 0; i < 3; i++)
+		sw_w32(r[i], rtl_table_data(q, i));
+
+	rtl_table_write(q, idx);
+	rtl_table_release(q);
+}
+
+static u64 rtl838x_read_mcast_pmask(int idx)
+{
+	u32 portmask;
+	// Read MC_PMSK (2) via register RTL8380_TBL_L2
+	struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 2);
+
+	rtl_table_read(q, idx);
+	portmask = sw_r32(rtl_table_data(q, 0));
+	rtl_table_release(q);
+
+	return portmask;
+}
+
+static void rtl838x_write_mcast_pmask(int idx, u64 portmask)
+{
+	// Access MC_PMSK (2) via register RTL8380_TBL_L2
+	struct table_reg *q = rtl_table_get(RTL8380_TBL_L2, 2);
+
+	sw_w32(((u32)portmask) & 0x1fffffff, rtl_table_data(q, 0));
+	rtl_table_write(q, idx);
+	rtl_table_release(q);
+}
+
+static void rtl838x_vlan_profile_setup(int profile)
+{
+	u32 pmask_id = UNKNOWN_MC_PMASK;
+	// Enable L2 Learning BIT 0, portmask UNKNOWN_MC_PMASK for unknown MC traffic flooding
+	u32 p = 1 | pmask_id << 1 | pmask_id << 10 | pmask_id << 19;
+
+	sw_w32(p, RTL838X_VLAN_PROFILE(profile));
+
+	/* RTL8380 and RTL8390 use an index into the portmask table to set the
+	 * unknown multicast portmask, setup a default at a safe location
+	 * On RTL93XX, the portmask is directly set in the profile,
+	 * see e.g. rtl9300_vlan_profile_setup
+	 */
+	rtl838x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0x1fffffff);
+}
+
+static inline int rtl838x_vlan_port_egr_filter(int port)
+{
+	return RTL838X_VLAN_PORT_EGR_FLTR;
+}
+
+static inline int rtl838x_vlan_port_igr_filter(int port)
+{
+	return RTL838X_VLAN_PORT_IGR_FLTR(port);
+}
+
+static void rtl838x_stp_get(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
+{
+	int i;
+	u32 cmd = 1 << 15 /* Execute cmd */
+		| 1 << 14 /* Read */
+		| 2 << 12 /* Table type 0b10 */
+		| (msti & 0xfff);
+	priv->r->exec_tbl0_cmd(cmd);
+
+	for (i = 0; i < 2; i++)
+		port_state[i] = sw_r32(priv->r->tbl_access_data_0(i));
+}
+
+static void rtl838x_stp_set(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
+{
+	int i;
+	u32 cmd = 1 << 15 /* Execute cmd */
+		| 0 << 14 /* Write */
+		| 2 << 12 /* Table type 0b10 */
+		| (msti & 0xfff);
+
+	for (i = 0; i < 2; i++)
+		sw_w32(port_state[i], priv->r->tbl_access_data_0(i));
+	priv->r->exec_tbl0_cmd(cmd);
+}
+
+u64 rtl838x_traffic_get(int source)
+{
+	return rtl838x_get_port_reg(rtl838x_port_iso_ctrl(source));
+}
+
+void rtl838x_traffic_set(int source, u64 dest_matrix)
+{
+	rtl838x_set_port_reg(dest_matrix, rtl838x_port_iso_ctrl(source));
+}
+
+void rtl838x_traffic_enable(int source, int dest)
+{
+	rtl838x_mask_port_reg(0, BIT(dest), rtl838x_port_iso_ctrl(source));
+}
+
+void rtl838x_traffic_disable(int source, int dest)
+{
+	rtl838x_mask_port_reg(BIT(dest), 0, rtl838x_port_iso_ctrl(source));
+}
+
+/*
+ * Enables or disables the EEE/EEEP capability of a port
+ */
+static void rtl838x_port_eee_set(struct rtl838x_switch_priv *priv, int port, bool enable)
+{
+	u32 v;
+
+	// This works only for Ethernet ports, and on the RTL838X, ports from 24 are SFP
+	if (port >= 24)
+		return;
+
+	pr_debug("In %s: setting port %d to %d\n", __func__, port, enable);
+	v = enable ? 0x3 : 0x0;
+
+	// Set EEE state for 100 (bit 9) & 1000MBit (bit 10)
+	sw_w32_mask(0x3 << 9, v << 9, priv->r->mac_force_mode_ctrl(port));
+
+	// Set TX/RX EEE state
+	if (enable) {
+		sw_w32_mask(0, BIT(port), RTL838X_EEE_PORT_TX_EN);
+		sw_w32_mask(0, BIT(port), RTL838X_EEE_PORT_RX_EN);
+	} else {
+		sw_w32_mask(BIT(port), 0, RTL838X_EEE_PORT_TX_EN);
+		sw_w32_mask(BIT(port), 0, RTL838X_EEE_PORT_RX_EN);
+	}
+	priv->ports[port].eee_enabled = enable;
+}
+
+
+/*
+ * Get EEE own capabilities and negotiation result
+ */
+static int rtl838x_eee_port_ability(struct rtl838x_switch_priv *priv,
+				    struct ethtool_eee *e, int port)
+{
+	u64 link;
+
+	if (port >= 24)
+		return 0;
+
+	link = rtl839x_get_port_reg_le(RTL838X_MAC_LINK_STS);
+	if (!(link & BIT(port)))
+		return 0;
+
+	if (sw_r32(rtl838x_mac_force_mode_ctrl(port)) & BIT(9))
+		e->advertised |= ADVERTISED_100baseT_Full;
+
+	if (sw_r32(rtl838x_mac_force_mode_ctrl(port)) & BIT(10))
+		e->advertised |= ADVERTISED_1000baseT_Full;
+
+	if (sw_r32(RTL838X_MAC_EEE_ABLTY) & BIT(port)) {
+		e->lp_advertised = ADVERTISED_100baseT_Full;
+		e->lp_advertised |= ADVERTISED_1000baseT_Full;
+		return 1;
+	}
+
+	return 0;
+}
+
+static void rtl838x_init_eee(struct rtl838x_switch_priv *priv, bool enable)
+{
+	int i;
+
+	pr_info("Setting up EEE, state: %d\n", enable);
+	sw_w32_mask(0x4, 0, RTL838X_SMI_GLB_CTRL);
+
+	/* Set timers for EEE */
+	sw_w32(0x5001411, RTL838X_EEE_TX_TIMER_GIGA_CTRL);
+	sw_w32(0x5001417, RTL838X_EEE_TX_TIMER_GELITE_CTRL);
+
+	// Enable EEE MAC support on ports
+	for (i = 0; i < priv->cpu_port; i++) {
+		if (priv->ports[i].phy)
+			rtl838x_port_eee_set(priv, i, enable);
+	}
+	priv->eee_enabled = enable;
+}
+
+const struct rtl838x_reg rtl838x_reg = {
+	.mask_port_reg_be = rtl838x_mask_port_reg,
+	.set_port_reg_be = rtl838x_set_port_reg,
+	.get_port_reg_be = rtl838x_get_port_reg,
+	.mask_port_reg_le = rtl838x_mask_port_reg,
+	.set_port_reg_le = rtl838x_set_port_reg,
+	.get_port_reg_le = rtl838x_get_port_reg,
+	.stat_port_rst = RTL838X_STAT_PORT_RST,
+	.stat_rst = RTL838X_STAT_RST,
+	.stat_port_std_mib = RTL838X_STAT_PORT_STD_MIB,
+	.port_iso_ctrl = rtl838x_port_iso_ctrl,
+	.traffic_enable = rtl838x_traffic_enable,
+	.traffic_disable = rtl838x_traffic_disable,
+	.traffic_get = rtl838x_traffic_get,
+	.traffic_set = rtl838x_traffic_set,
+	.l2_ctrl_0 = RTL838X_L2_CTRL_0,
+	.l2_ctrl_1 = RTL838X_L2_CTRL_1,
+	.l2_port_aging_out = RTL838X_L2_PORT_AGING_OUT,
+	.smi_poll_ctrl = RTL838X_SMI_POLL_CTRL,
+	.l2_tbl_flush_ctrl = RTL838X_L2_TBL_FLUSH_CTRL,
+	.exec_tbl0_cmd = rtl838x_exec_tbl0_cmd,
+	.exec_tbl1_cmd = rtl838x_exec_tbl1_cmd,
+	.tbl_access_data_0 = rtl838x_tbl_access_data_0,
+	.isr_glb_src = RTL838X_ISR_GLB_SRC,
+	.isr_port_link_sts_chg = RTL838X_ISR_PORT_LINK_STS_CHG,
+	.imr_port_link_sts_chg = RTL838X_IMR_PORT_LINK_STS_CHG,
+	.imr_glb = RTL838X_IMR_GLB,
+	.vlan_tables_read = rtl838x_vlan_tables_read,
+	.vlan_set_tagged = rtl838x_vlan_set_tagged,
+	.vlan_set_untagged = rtl838x_vlan_set_untagged,
+	.mac_force_mode_ctrl = rtl838x_mac_force_mode_ctrl,
+	.vlan_profile_dump = rtl838x_vlan_profile_dump,
+	.vlan_profile_setup = rtl838x_vlan_profile_setup,
+	.vlan_fwd_on_inner = rtl838x_vlan_fwd_on_inner,
+	.stp_get = rtl838x_stp_get,
+	.stp_set = rtl838x_stp_set,
+	.mac_port_ctrl = rtl838x_mac_port_ctrl,
+	.l2_port_new_salrn = rtl838x_l2_port_new_salrn,
+	.l2_port_new_sa_fwd = rtl838x_l2_port_new_sa_fwd,
+	.mir_ctrl = RTL838X_MIR_CTRL,
+	.mir_dpm = RTL838X_MIR_DPM_CTRL,
+	.mir_spm = RTL838X_MIR_SPM_CTRL,
+	.mac_link_sts = RTL838X_MAC_LINK_STS,
+	.mac_link_dup_sts = RTL838X_MAC_LINK_DUP_STS,
+	.mac_link_spd_sts = rtl838x_mac_link_spd_sts,
+	.mac_rx_pause_sts = RTL838X_MAC_RX_PAUSE_STS,
+	.mac_tx_pause_sts = RTL838X_MAC_TX_PAUSE_STS,
+	.read_l2_entry_using_hash = rtl838x_read_l2_entry_using_hash,
+	.write_l2_entry_using_hash = rtl838x_write_l2_entry_using_hash,
+	.read_cam = rtl838x_read_cam,
+	.write_cam = rtl838x_write_cam,
+	.vlan_port_egr_filter = RTL838X_VLAN_PORT_EGR_FLTR,
+	.vlan_port_igr_filter = RTL838X_VLAN_PORT_IGR_FLTR(0),
+	.vlan_port_pb = RTL838X_VLAN_PORT_PB_VLAN,
+	.vlan_port_tag_sts_ctrl = RTL838X_VLAN_PORT_TAG_STS_CTRL,
+	.trk_mbr_ctr = rtl838x_trk_mbr_ctr,
+	.rma_bpdu_fld_pmask = RTL838X_RMA_BPDU_FLD_PMSK,
+	.spcl_trap_eapol_ctrl = RTL838X_SPCL_TRAP_EAPOL_CTRL,
+	.init_eee = rtl838x_init_eee,
+	.port_eee_set = rtl838x_port_eee_set,
+	.eee_port_ability = rtl838x_eee_port_ability,
+	.l2_hash_seed = rtl838x_l2_hash_seed, 
+	.l2_hash_key = rtl838x_l2_hash_key,
+	.read_mcast_pmask = rtl838x_read_mcast_pmask,
+	.write_mcast_pmask = rtl838x_write_mcast_pmask,
+};
+
+irqreturn_t rtl838x_switch_irq(int irq, void *dev_id)
+{
+	struct dsa_switch *ds = dev_id;
+	u32 status = sw_r32(RTL838X_ISR_GLB_SRC);
+	u32 ports = sw_r32(RTL838X_ISR_PORT_LINK_STS_CHG);
+	u32 link;
+	int i;
+
+	/* Clear status */
+	sw_w32(ports, RTL838X_ISR_PORT_LINK_STS_CHG);
+	pr_info("RTL8380 Link change: status: %x, ports %x\n", status, ports);
+
+	for (i = 0; i < 28; i++) {
+		if (ports & BIT(i)) {
+			link = sw_r32(RTL838X_MAC_LINK_STS);
+			if (link & BIT(i))
+				dsa_port_phylink_mac_change(ds, i, true);
+			else
+				dsa_port_phylink_mac_change(ds, i, false);
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+int rtl838x_smi_wait_op(int timeout)
+{
+	do {
+		timeout--;
+		udelay(10);
+	} while ((sw_r32(RTL838X_SMI_ACCESS_PHY_CTRL_1) & 0x1) && (timeout >= 0));
+	if (timeout <= 0)
+		return -1;
+	return 0;
+}
+
+/*
+ * Reads a register in a page from the PHY
+ */
+int rtl838x_read_phy(u32 port, u32 page, u32 reg, u32 *val)
+{
+	u32 v;
+	u32 park_page;
+
+	if (port > 31) {
+		*val = 0xffff;
+		return 0;
+	}
+
+	if (page > 4095 || reg > 31)
+		return -ENOTSUPP;
+
+	mutex_lock(&smi_lock);
+
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	sw_w32_mask(0xffff0000, port << 16, RTL838X_SMI_ACCESS_PHY_CTRL_2);
+
+	park_page = sw_r32(RTL838X_SMI_ACCESS_PHY_CTRL_1) & ((0x1f << 15) | 0x2);
+	v = reg << 20 | page << 3;
+	sw_w32(v | park_page, RTL838X_SMI_ACCESS_PHY_CTRL_1);
+	sw_w32_mask(0, 1, RTL838X_SMI_ACCESS_PHY_CTRL_1);
+
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	*val = sw_r32(RTL838X_SMI_ACCESS_PHY_CTRL_2) & 0xffff;
+
+	mutex_unlock(&smi_lock);
+	return 0;
+
+timeout:
+	mutex_unlock(&smi_lock);
+	return -ETIMEDOUT;
+}
+
+/*
+ * Write to a register in a page of the PHY
+ */
+int rtl838x_write_phy(u32 port, u32 page, u32 reg, u32 val)
+{
+	u32 v;
+	u32 park_page;
+
+	val &= 0xffff;
+	if (port > 31 || page > 4095 || reg > 31)
+		return -ENOTSUPP;
+
+	mutex_lock(&smi_lock);
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	sw_w32(BIT(port), RTL838X_SMI_ACCESS_PHY_CTRL_0);
+	mdelay(10);
+
+	sw_w32_mask(0xffff0000, val << 16, RTL838X_SMI_ACCESS_PHY_CTRL_2);
+
+	park_page = sw_r32(RTL838X_SMI_ACCESS_PHY_CTRL_1) & ((0x1f << 15) | 0x2);
+	v = reg << 20 | page << 3 | 0x4;
+	sw_w32(v | park_page, RTL838X_SMI_ACCESS_PHY_CTRL_1);
+	sw_w32_mask(0, 1, RTL838X_SMI_ACCESS_PHY_CTRL_1);
+
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	mutex_unlock(&smi_lock);
+	return 0;
+
+timeout:
+	mutex_unlock(&smi_lock);
+	return -ETIMEDOUT;
+}
+
+/*
+ * Read an mmd register of a PHY
+ */
+int rtl838x_read_mmd_phy(u32 port, u32 addr, u32 reg, u32 *val)
+{
+	u32 v;
+
+	mutex_lock(&smi_lock);
+
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	sw_w32(1 << port, RTL838X_SMI_ACCESS_PHY_CTRL_0);
+	mdelay(10);
+
+	sw_w32_mask(0xffff0000, port << 16, RTL838X_SMI_ACCESS_PHY_CTRL_2);
+
+	v = addr << 16 | reg;
+	sw_w32(v, RTL838X_SMI_ACCESS_PHY_CTRL_3);
+
+	/* mmd-access | read | cmd-start */
+	v = 1 << 1 | 0 << 2 | 1;
+	sw_w32(v, RTL838X_SMI_ACCESS_PHY_CTRL_1);
+
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	*val = sw_r32(RTL838X_SMI_ACCESS_PHY_CTRL_2) & 0xffff;
+
+	mutex_unlock(&smi_lock);
+	return 0;
+
+timeout:
+	mutex_unlock(&smi_lock);
+	return -ETIMEDOUT;
+}
+
+/*
+ * Write to an mmd register of a PHY
+ */
+int rtl838x_write_mmd_phy(u32 port, u32 addr, u32 reg, u32 val)
+{
+	u32 v;
+
+	pr_debug("MMD write: port %d, dev %d, reg %d, val %x\n", port, addr, reg, val);
+	val &= 0xffff;
+	mutex_lock(&smi_lock);
+
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	sw_w32(1 << port, RTL838X_SMI_ACCESS_PHY_CTRL_0);
+	mdelay(10);
+
+	sw_w32_mask(0xffff0000, val << 16, RTL838X_SMI_ACCESS_PHY_CTRL_2);
+
+	sw_w32_mask(0x1f << 16, addr << 16, RTL838X_SMI_ACCESS_PHY_CTRL_3);
+	sw_w32_mask(0xffff, reg, RTL838X_SMI_ACCESS_PHY_CTRL_3);
+	/* mmd-access | write | cmd-start */
+	v = 1 << 1 | 1 << 2 | 1;
+	sw_w32(v, RTL838X_SMI_ACCESS_PHY_CTRL_1);
+
+	if (rtl838x_smi_wait_op(10000))
+		goto timeout;
+
+	mutex_unlock(&smi_lock);
+	return 0;
+
+timeout:
+	mutex_unlock(&smi_lock);
+	return -ETIMEDOUT;
+}
+
+void rtl8380_get_version(struct rtl838x_switch_priv *priv)
+{
+	u32 rw_save, info_save;
+	u32 info;
+
+	rw_save = sw_r32(RTL838X_INT_RW_CTRL);
+	sw_w32(rw_save | 0x3, RTL838X_INT_RW_CTRL);
+
+	info_save = sw_r32(RTL838X_CHIP_INFO);
+	sw_w32(info_save | 0xA0000000, RTL838X_CHIP_INFO);
+
+	info = sw_r32(RTL838X_CHIP_INFO);
+	sw_w32(info_save, RTL838X_CHIP_INFO);
+	sw_w32(rw_save, RTL838X_INT_RW_CTRL);
+
+	if ((info & 0xFFFF) == 0x6275) {
+		if (((info >> 16) & 0x1F) == 0x1)
+			priv->version = RTL8380_VERSION_A;
+		else if (((info >> 16) & 0x1F) == 0x2)
+			priv->version = RTL8380_VERSION_B;
+		else
+			priv->version = RTL8380_VERSION_B;
+	} else {
+		priv->version = '-';
+	}
+}
+
+void rtl838x_vlan_profile_dump(int profile)
+{
+	u32 p;
+
+	if (profile < 0 || profile > 7)
+		return;
+
+	p = sw_r32(RTL838X_VLAN_PROFILE(profile));
+
+	pr_info("VLAN profile %d: L2 learning: %d, UNKN L2MC FLD PMSK %d, \
+		UNKN IPMC FLD PMSK %d, UNKN IPv6MC FLD PMSK: %d",
+		profile, p & 1, (p >> 1) & 0x1ff, (p >> 10) & 0x1ff, (p >> 19) & 0x1ff);
+}
+
+void rtl8380_sds_rst(int mac)
+{
+	u32 offset = (mac == 24) ? 0 : 0x100;
+
+	sw_w32_mask(1 << 11, 0, RTL838X_SDS4_FIB_REG0 + offset);
+	sw_w32_mask(0x3, 0, RTL838X_SDS4_REG28 + offset);
+	sw_w32_mask(0x3, 0x3, RTL838X_SDS4_REG28 + offset);
+	sw_w32_mask(0, 0x1 << 6, RTL838X_SDS4_DUMMY0 + offset);
+	sw_w32_mask(0x1 << 6, 0, RTL838X_SDS4_DUMMY0 + offset);
+	pr_debug("SERDES reset: %d\n", mac);
+}
+
+int rtl8380_sds_power(int mac, int val)
+{
+	u32 mode = (val == 1) ? 0x4 : 0x9;
+	u32 offset = (mac == 24) ? 5 : 0;
+
+	if ((mac != 24) && (mac != 26)) {
+		pr_err("%s: not a fibre port: %d\n", __func__, mac);
+		return -1;
+	}
+
+	sw_w32_mask(0x1f << offset, mode << offset, RTL838X_SDS_MODE_SEL);
+
+	rtl8380_sds_rst(mac);
+
+	return 0;
+}

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.h

@@ -0,0 +1,526 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _RTL838X_H
+#define _RTL838X_H
+
+#include <net/dsa.h>
+
+/*
+ * Register definition
+ */
+#define RTL838X_MAC_PORT_CTRL(port)		(0xd560 + (((port) << 7)))
+#define RTL839X_MAC_PORT_CTRL(port)		(0x8004 + (((port) << 7)))
+#define RTL930X_MAC_PORT_CTRL(port)		(0x3260 + (((port) << 6)))
+#define RTL930X_MAC_L2_PORT_CTRL(port)		(0x3268 + (((port) << 6)))
+#define RTL931X_MAC_PORT_CTRL(port)		(0x6004 + (((port) << 7)))
+
+#define RTL838X_RST_GLB_CTRL_0			(0x003c)
+
+#define RTL838X_MAC_FORCE_MODE_CTRL		(0xa104)
+#define RTL839X_MAC_FORCE_MODE_CTRL		(0x02bc)
+#define RTL930X_MAC_FORCE_MODE_CTRL		(0xCA1C)
+#define RTL931X_MAC_FORCE_MODE_CTRL		(0x0DCC)
+
+#define RTL838X_DMY_REG31			(0x3b28)
+#define RTL838X_SDS_MODE_SEL			(0x0028)
+#define RTL838X_SDS_CFG_REG			(0x0034)
+#define RTL838X_INT_MODE_CTRL			(0x005c)
+#define RTL838X_CHIP_INFO			(0x00d8)
+#define RTL839X_CHIP_INFO			(0x0ff4)
+#define RTL838X_PORT_ISO_CTRL(port)		(0x4100 + ((port) << 2))
+#define RTL839X_PORT_ISO_CTRL(port)		(0x1400 + ((port) << 3))
+
+/* Packet statistics */
+#define RTL838X_STAT_PORT_STD_MIB		(0x1200)
+#define RTL839X_STAT_PORT_STD_MIB		(0xC000)
+#define RTL930X_STAT_PORT_MIB_CNTR		(0x0664)
+#define RTL838X_STAT_RST			(0x3100)
+#define RTL839X_STAT_RST			(0xF504)
+#define RTL930X_STAT_RST			(0x3240)
+#define RTL931X_STAT_RST			(0x7ef4)
+#define RTL838X_STAT_PORT_RST			(0x3104)
+#define RTL839X_STAT_PORT_RST			(0xF508)
+#define RTL930X_STAT_PORT_RST			(0x3244)
+#define RTL931X_STAT_PORT_RST			(0x7ef8)
+#define RTL838X_STAT_CTRL			(0x3108)
+#define RTL839X_STAT_CTRL			(0x04cc)
+#define RTL930X_STAT_CTRL			(0x3248)
+#define RTL931X_STAT_CTRL			(0x5720)
+
+/* Registers of the internal Serdes of the 8390 */
+#define RTL8390_SDS0_1_XSG0			(0xA000)
+#define RTL8390_SDS0_1_XSG1			(0xA100)
+#define RTL839X_SDS12_13_XSG0			(0xB800)
+#define RTL839X_SDS12_13_XSG1			(0xB900)
+#define RTL839X_SDS12_13_PWR0			(0xb880)
+#define RTL839X_SDS12_13_PWR1			(0xb980)
+
+/* Registers of the internal Serdes of the 8380 */
+#define RTL838X_SDS4_FIB_REG0			(0xF800)
+#define RTL838X_SDS4_REG28			(0xef80)
+#define RTL838X_SDS4_DUMMY0			(0xef8c)
+#define RTL838X_SDS5_EXT_REG6			(0xf18c)
+
+/* VLAN registers */
+#define RTL838X_VLAN_CTRL			(0x3A74)
+#define RTL838X_VLAN_PROFILE(idx)		(0x3A88 + ((idx) << 2))
+#define RTL838X_VLAN_PORT_EGR_FLTR		(0x3A84)
+#define RTL838X_VLAN_PORT_PB_VLAN		(0x3C00)
+#define RTL838X_VLAN_PORT_IGR_FLTR(port)	(0x3A7C + (((port >> 4) << 2)))
+#define RTL838X_VLAN_PORT_IGR_FLTR_0		(0x3A7C)
+#define RTL838X_VLAN_PORT_IGR_FLTR_1		(0x3A7C + 4)
+#define RTL838X_VLAN_PORT_TAG_STS_CTRL		(0xA530)
+
+#define RTL839X_VLAN_PROFILE(idx)		(0x25C0 + (((idx) << 3)))
+#define RTL839X_VLAN_CTRL			(0x26D4)
+#define RTL839X_VLAN_PORT_PB_VLAN		(0x26D8)
+#define RTL839X_VLAN_PORT_IGR_FLTR(port)	(0x27B4 + (((port >> 4) << 2)))
+#define RTL839X_VLAN_PORT_EGR_FLTR(port)	(0x27C4 + (((port >> 5) << 2)))
+#define RTL839X_VLAN_PORT_TAG_STS_CTRL		(0x6828)
+
+#define RTL930X_VLAN_PROFILE_SET(idx)		(0x9c60 + (((idx) * 20)))
+#define RTL930X_VLAN_CTRL			(0x82D4)
+#define RTL930X_VLAN_PORT_PB_VLAN		(0x82D8)
+#define RTL930X_VLAN_PORT_IGR_FLTR(port)	(0x83C0 + (((port >> 4) << 2)))
+#define RTL930X_VLAN_PORT_EGR_FLTR		(0x83C8)
+#define RTL930X_VLAN_PORT_TAG_STS_CTRL		(0xCE24)
+
+#define RTL931X_VLAN_PROFILE_SET(idx)		(0x9800 + (((idx) * 28)))
+#define RTL931X_VLAN_CTRL			(0x94E4)
+#define RTL931X_VLAN_PORT_IGR_FLTR(port)	(0x96B4 + (((port >> 4) << 2)))
+#define RTL931X_VLAN_PORT_EGR_FLTR(port)	(0x96C4 + (((port >> 5) << 2)))
+#define RTL931X_VLAN_PORT_TAG_CTRL		(0x4860)
+
+/* Table access registers */
+#define RTL838X_TBL_ACCESS_CTRL_0		(0x6914)
+#define RTL838X_TBL_ACCESS_DATA_0(idx)		(0x6918 + ((idx) << 2))
+#define RTL838X_TBL_ACCESS_CTRL_1		(0xA4C8)
+#define RTL838X_TBL_ACCESS_DATA_1(idx)		(0xA4CC + ((idx) << 2))
+
+#define RTL839X_TBL_ACCESS_CTRL_0		(0x1190)
+#define RTL839X_TBL_ACCESS_DATA_0(idx)		(0x1194 + ((idx) << 2))
+#define RTL839X_TBL_ACCESS_CTRL_1		(0x6b80)
+#define RTL839X_TBL_ACCESS_DATA_1(idx)		(0x6b84 + ((idx) << 2))
+#define RTL839X_TBL_ACCESS_CTRL_2		(0x611C)
+#define RTL839X_TBL_ACCESS_DATA_2(i)		(0x6120 + (((i) << 2)))
+
+#define RTL930X_TBL_ACCESS_CTRL_0		(0xB340)
+#define RTL930X_TBL_ACCESS_DATA_0(idx)		(0xB344 + ((idx) << 2))
+#define RTL930X_TBL_ACCESS_CTRL_1		(0xB3A0)
+#define RTL930X_TBL_ACCESS_DATA_1(idx)		(0xB3A4 + ((idx) << 2))
+#define RTL930X_TBL_ACCESS_CTRL_2		(0xCE04)
+#define RTL930X_TBL_ACCESS_DATA_2(i)		(0xCE08 + (((i) << 2)))
+
+#define RTL931X_TBL_ACCESS_CTRL_0		(0x8500)
+#define RTL931X_TBL_ACCESS_DATA_0(idx)		(0x8508 + ((idx) << 2))
+#define RTL931X_TBL_ACCESS_CTRL_1		(0x40C0)
+#define RTL931X_TBL_ACCESS_DATA_1(idx)		(0x40C4 + ((idx) << 2))
+#define RTL931X_TBL_ACCESS_CTRL_2		(0x8528)
+#define RTL931X_TBL_ACCESS_DATA_2(i)		(0x852C + (((i) << 2)))
+#define RTL931X_TBL_ACCESS_CTRL_3		(0x0200)
+#define RTL931X_TBL_ACCESS_DATA_3(i)		(0x0204 + (((i) << 2)))
+#define RTL931X_TBL_ACCESS_CTRL_4		(0x20DC)
+#define RTL931X_TBL_ACCESS_DATA_4(i)		(0x20E0 + (((i) << 2)))
+#define RTL931X_TBL_ACCESS_CTRL_5		(0x7E1C)
+#define RTL931X_TBL_ACCESS_DATA_5(i)		(0x7E20 + (((i) << 2)))
+
+/* MAC handling */
+#define RTL838X_MAC_LINK_STS			(0xa188)
+#define RTL839X_MAC_LINK_STS			(0x0390)
+#define RTL930X_MAC_LINK_STS			(0xCB10)
+#define RTL931X_MAC_LINK_STS			(0x0EC0)
+#define RTL838X_MAC_LINK_SPD_STS(p)		(0xa190 + (((p >> 4) << 2)))
+#define RTL839X_MAC_LINK_SPD_STS(p)		(0x03a0 + (((p >> 4) << 2)))
+#define RTL930X_MAC_LINK_SPD_STS(p)		(0xCB18 + (((p >> 3) << 2)))
+#define RTL931X_MAC_LINK_SPD_STS(p)		(0x0ED0 + (((p >> 3) << 2)))
+#define RTL838X_MAC_LINK_DUP_STS		(0xa19c)
+#define RTL839X_MAC_LINK_DUP_STS		(0x03b0)
+#define RTL930X_MAC_LINK_DUP_STS		(0xCB28)
+#define RTL931X_MAC_LINK_DUP_STS		(0x0EF0)
+#define RTL838X_MAC_TX_PAUSE_STS		(0xa1a0)
+#define RTL839X_MAC_TX_PAUSE_STS		(0x03b8)
+#define RTL930X_MAC_TX_PAUSE_STS		(0xCB2C)
+#define RTL931X_MAC_TX_PAUSE_STS		(0x0EF8)
+#define RTL838X_MAC_RX_PAUSE_STS		(0xa1a4)
+#define RTL839X_MAC_RX_PAUSE_STS		(0x03c0)
+#define RTL930X_MAC_RX_PAUSE_STS		(0xCB30)
+#define RTL931X_MAC_RX_PAUSE_STS		(0x0F00)
+
+/* MAC link state bits */
+#define FORCE_EN				(1 << 0)
+#define FORCE_LINK_EN				(1 << 1)
+#define NWAY_EN					(1 << 2)
+#define DUPLX_MODE				(1 << 3)
+#define TX_PAUSE_EN				(1 << 6)
+#define RX_PAUSE_EN				(1 << 7)
+
+/* EEE */
+#define RTL838X_MAC_EEE_ABLTY			(0xa1a8)
+#define RTL838X_EEE_PORT_TX_EN			(0x014c)
+#define RTL838X_EEE_PORT_RX_EN			(0x0150)
+#define RTL838X_EEE_CLK_STOP_CTRL		(0x0148)
+#define RTL838X_EEE_TX_TIMER_GIGA_CTRL		(0xaa04)
+#define RTL838X_EEE_TX_TIMER_GELITE_CTRL	(0xaa08)
+
+#define RTL839X_EEE_TX_TIMER_GELITE_CTRL	(0x042C)
+#define RTL839X_EEE_TX_TIMER_GIGA_CTRL		(0x0430)
+#define RTL839X_EEE_TX_TIMER_10G_CTRL		(0x0434)
+#define RTL839X_EEE_CTRL(p)			(0x8008 + ((p) << 7))
+#define RTL839X_MAC_EEE_ABLTY			(0x03C8)
+
+#define RTL930X_MAC_EEE_ABLTY			(0xCB34)
+#define RTL930X_EEE_CTRL(p)			(0x3274 + ((p) << 6))
+#define RTL930X_EEEP_PORT_CTRL(p)		(0x3278 + ((p) << 6))
+
+/* L2 functionality */
+#define RTL838X_L2_CTRL_0			(0x3200)
+#define RTL839X_L2_CTRL_0			(0x3800)
+#define RTL930X_L2_CTRL				(0x8FD8)
+#define RTL931X_L2_CTRL				(0xC800)
+#define RTL838X_L2_CTRL_1			(0x3204)
+#define RTL839X_L2_CTRL_1			(0x3804)
+#define RTL930X_L2_AGE_CTRL			(0x8FDC)
+#define RTL931X_L2_AGE_CTRL			(0xC804)
+#define RTL838X_L2_PORT_AGING_OUT		(0x3358)
+#define RTL839X_L2_PORT_AGING_OUT		(0x3b74)
+#define	RTL930X_L2_PORT_AGE_CTRL		(0x8FE0)
+#define	RTL931X_L2_PORT_AGE_CTRL		(0xc808)
+#define RTL838X_TBL_ACCESS_L2_CTRL		(0x6900)
+#define RTL839X_TBL_ACCESS_L2_CTRL		(0x1180)
+#define RTL930X_TBL_ACCESS_L2_CTRL		(0xB320)
+#define RTL930X_TBL_ACCESS_L2_METHOD_CTRL	(0xB324)
+#define RTL838X_TBL_ACCESS_L2_DATA(idx)		(0x6908 + ((idx) << 2))
+#define RTL839X_TBL_ACCESS_L2_DATA(idx)		(0x1184 + ((idx) << 2))
+#define RTL930X_TBL_ACCESS_L2_DATA(idx)		(0xab08 + ((idx) << 2))
+#define RTL838X_L2_TBL_FLUSH_CTRL		(0x3370)
+#define RTL839X_L2_TBL_FLUSH_CTRL		(0x3ba0)
+#define RTL930X_L2_TBL_FLUSH_CTRL		(0x9404)
+#define RTL931X_L2_TBL_FLUSH_CTRL		(0xCD9C)
+
+#define RTL838X_L2_PORT_NEW_SALRN(p)		(0x328c + (((p >> 4) << 2)))
+#define RTL839X_L2_PORT_NEW_SALRN(p)		(0x38F0 + (((p >> 4) << 2)))
+#define RTL930X_L2_PORT_SALRN(p)		(0x8FEC + (((p >> 4) << 2)))
+#define RTL931X_L2_PORT_NEW_SALRN(p)		(0xC820 + (((p >> 4) << 2)))
+#define RTL838X_L2_PORT_NEW_SA_FWD(p)		(0x3294 + (((p >> 4) << 2)))
+#define RTL839X_L2_PORT_NEW_SA_FWD(p)		(0x3900 + (((p >> 4) << 2)))
+#define RTL930X_L2_PORT_NEW_SA_FWD(p)		(0x8FF4 + (((p / 10) << 2)))
+#define RTL931X_L2_PORT_NEW_SA_FWD(p)		(0xC830 + (((p / 10) << 2)))
+
+#define RTL930X_ST_CTRL				(0x8798)
+
+#define RTL930X_L2_PORT_SABLK_CTRL		(0x905c)
+#define RTL930X_L2_PORT_DABLK_CTRL		(0x9060)
+
+#define RTL838X_RMA_BPDU_FLD_PMSK		(0x4348)
+#define RTL930X_RMA_BPDU_FLD_PMSK		(0x9F18)
+#define RTL931X_RMA_BPDU_FLD_PMSK		(0x8950)
+#define RTL839X_RMA_BPDU_FLD_PMSK		(0x125C)
+
+#define RTL838X_L2_PORT_LM_ACT(p)		(0x3208 + ((p) << 2))
+#define RTL838X_VLAN_PORT_FWD			(0x3A78)
+#define RTL839X_VLAN_PORT_FWD			(0x27AC)
+#define RTL930X_VLAN_PORT_FWD			(0x834C)
+#define RTL838X_VLAN_FID_CTRL			(0x3aa8)
+
+/* Port Mirroring */
+#define RTL838X_MIR_CTRL			(0x5D00)
+#define RTL838X_MIR_DPM_CTRL			(0x5D20)
+#define RTL838X_MIR_SPM_CTRL			(0x5D10)
+
+#define RTL839X_MIR_CTRL			(0x2500)
+#define RTL839X_MIR_DPM_CTRL			(0x2530)
+#define RTL839X_MIR_SPM_CTRL			(0x2510)
+
+#define RTL930X_MIR_CTRL			(0xA2A0)
+#define RTL930X_MIR_DPM_CTRL			(0xA2C0)
+#define RTL930X_MIR_SPM_CTRL			(0xA2B0)
+
+#define RTL931X_MIR_CTRL			(0xAF00)
+#define RTL931X_MIR_DPM_CTRL			(0xAF30)
+#define RTL931X_MIR_SPM_CTRL			(0xAF10)
+
+/* Storm/rate control and scheduling */
+#define RTL838X_STORM_CTRL			(0x4700)
+#define RTL839X_STORM_CTRL			(0x1800)
+#define RTL838X_STORM_CTRL_LB_CTRL(p)		(0x4884 + (((p) << 2)))
+#define RTL838X_STORM_CTRL_BURST_PPS_0		(0x4874)
+#define RTL838X_STORM_CTRL_BURST_PPS_1		(0x4878)
+#define RTL838X_STORM_CTRL_BURST_0		(0x487c)
+#define RTL838X_STORM_CTRL_BURST_1		(0x4880)
+#define RTL839X_STORM_CTRL_LB_TICK_TKN_CTRL_0	(0x1804)
+#define RTL839X_STORM_CTRL_LB_TICK_TKN_CTRL_1	(0x1808)
+#define RTL838X_SCHED_CTRL			(0xB980)
+#define RTL839X_SCHED_CTRL			(0x60F4)
+#define RTL838X_SCHED_LB_TICK_TKN_CTRL_0	(0xAD58)
+#define RTL838X_SCHED_LB_TICK_TKN_CTRL_1	(0xAD5C)
+#define RTL839X_SCHED_LB_TICK_TKN_CTRL_0	(0x1804)
+#define RTL839X_SCHED_LB_TICK_TKN_CTRL_1	(0x1808)
+#define RTL839X_STORM_CTRL_SPCL_LB_TICK_TKN_CTRL (0x2000)
+#define RTL839X_IGR_BWCTRL_LB_TICK_TKN_CTRL_0	(0x1604)
+#define RTL839X_IGR_BWCTRL_LB_TICK_TKN_CTRL_1	(0x1608)
+#define RTL839X_SCHED_LB_TICK_TKN_CTRL		(0x60F8)
+#define RTL839X_SCHED_LB_TICK_TKN_PPS_CTRL	(0x6200)
+#define RTL838X_SCHED_LB_THR			(0xB984)
+#define RTL839X_SCHED_LB_THR			(0x60FC)
+#define RTL838X_SCHED_P_EGR_RATE_CTRL(p)	(0xC008 + (((p) << 7)))
+#define RTL838X_SCHED_Q_EGR_RATE_CTRL(p, q)	(0xC00C + (p << 7) + (((q) << 2)))
+#define RTL838X_STORM_CTRL_PORT_BC_EXCEED	(0x470C)
+#define RTL838X_STORM_CTRL_PORT_MC_EXCEED	(0x4710)
+#define RTL838X_STORM_CTRL_PORT_UC_EXCEED	(0x4714)
+#define RTL839X_STORM_CTRL_PORT_BC_EXCEED(p)	(0x180c + (((p >> 5) << 2)))
+#define RTL839X_STORM_CTRL_PORT_MC_EXCEED(p)	(0x1814 + (((p >> 5) << 2)))
+#define RTL839X_STORM_CTRL_PORT_UC_EXCEED(p)	(0x181c + (((p >> 5) << 2)))
+#define RTL838X_STORM_CTRL_PORT_UC(p)		(0x4718 + (((p) << 2)))
+#define RTL838X_STORM_CTRL_PORT_MC(p)		(0x478c + (((p) << 2)))
+#define RTL838X_STORM_CTRL_PORT_BC(p)		(0x4800 + (((p) << 2)))
+#define RTL839X_STORM_CTRL_PORT_UC_0(p)		(0x185C + (((p) << 3)))
+#define RTL839X_STORM_CTRL_PORT_UC_1(p)		(0x1860 + (((p) << 3)))
+#define RTL839X_STORM_CTRL_PORT_MC_0(p)		(0x19FC + (((p) << 3)))
+#define RTL839X_STORM_CTRL_PORT_MC_1(p)		(0x1a00 + (((p) << 3)))
+#define RTL839X_STORM_CTRL_PORT_BC_0(p)		(0x1B9C + (((p) << 3)))
+#define RTL839X_STORM_CTRL_PORT_BC_1(p)		(0x1BA0 + (((p) << 3)))
+#define RTL839X_TBL_ACCESS_CTRL_2		(0x611C)
+#define RTL839X_TBL_ACCESS_DATA_2(i)		(0x6120 + (((i) << 2)))
+#define RTL839X_IGR_BWCTRL_PORT_CTRL_10G_0(p)	(0x1618 + (((p) << 3)))
+#define RTL839X_IGR_BWCTRL_PORT_CTRL_10G_1(p)	(0x161C + (((p) << 3)))
+#define RTL839X_IGR_BWCTRL_PORT_CTRL_0(p)	(0x1640 + (((p) << 3)))
+#define RTL839X_IGR_BWCTRL_PORT_CTRL_1(p)	(0x1644 + (((p) << 3)))
+#define RTL839X_IGR_BWCTRL_CTRL_LB_THR		(0x1614)
+
+/* Link aggregation (Trunking) */
+#define RTL839X_TRK_MBR_CTR			(0x2200)
+#define RTL838X_TRK_MBR_CTR			(0x3E00)
+#define RTL930X_TRK_MBR_CTRL			(0xA41C)
+#define RTL931X_TRK_MBR_CTRL			(0xB8D0)
+
+/* Attack prevention */
+#define RTL838X_ATK_PRVNT_PORT_EN		(0x5B00)
+#define RTL838X_ATK_PRVNT_CTRL			(0x5B04)
+#define RTL838X_ATK_PRVNT_ACT			(0x5B08)
+#define RTL838X_ATK_PRVNT_STS			(0x5B1C)
+
+/* 802.1X */
+#define RTL838X_SPCL_TRAP_EAPOL_CTRL		(0x6988)
+#define RTL839X_SPCL_TRAP_EAPOL_CTRL		(0x105C)
+
+/* QoS */
+#define RTL838X_QM_INTPRI2QID_CTRL		(0x5F00)
+#define RTL839X_QM_INTPRI2QID_CTRL(q)		(0x1110 + (q << 2))
+#define RTL839X_QM_PORT_QNUM(p)			(0x1130 + (((p / 10) << 2)))
+#define RTL838X_PRI_SEL_PORT_PRI(p)		(0x5FB8 + (((p / 10) << 2)))
+#define RTL839X_PRI_SEL_PORT_PRI(p)		(0x10A8 + (((p / 10) << 2)))
+#define RTL838X_QM_PKT2CPU_INTPRI_MAP		(0x5F10)
+#define RTL839X_QM_PKT2CPU_INTPRI_MAP		(0x1154)
+#define RTL838X_PRI_SEL_CTRL			(0x10E0)
+#define RTL839X_PRI_SEL_CTRL			(0x10E0)
+#define RTL838X_PRI_SEL_TBL_CTRL(i)		(0x5FD8 + (((i) << 2)))
+#define RTL839X_PRI_SEL_TBL_CTRL(i)		(0x10D0 + (((i) << 2)))
+#define RTL838X_QM_PKT2CPU_INTPRI_0		(0x5F04)
+#define RTL838X_QM_PKT2CPU_INTPRI_1		(0x5F08)
+#define RTL838X_QM_PKT2CPU_INTPRI_2		(0x5F0C)
+#define RTL839X_OAM_CTRL			(0x2100)
+#define RTL839X_OAM_PORT_ACT_CTRL(p)	 	(0x2104 + (((p) << 2)))
+#define RTL839X_RMK_PORT_DEI_TAG_CTRL(p)	(0x6A9C + (((p >> 5) << 2)))
+#define RTL839X_PRI_SEL_IPRI_REMAP		(0x1080)
+#define RTL838X_PRI_SEL_IPRI_REMAP		(0x5F8C)
+#define RTL839X_PRI_SEL_DEI2DP_REMAP		(0x10EC)
+#define RTL839X_PRI_SEL_DSCP2DP_REMAP_ADDR(i)	(0x10F0 + (((i >> 4) << 2)))
+#define RTL839X_RMK_DEI_CTRL			(0x6AA4)
+#define RTL839X_WRED_PORT_THR_CTRL(i)		(0x6084 + ((i) << 2))
+#define RTL839X_WRED_QUEUE_THR_CTRL(q, i) 	(0x6090 + ((q) * 12) + ((i) << 2))
+#define RTL838X_PRI_DSCP_INVLD_CTRL0		(0x5FE8)
+#define RTL838X_RMK_IPRI_CTRL			(0xA460)
+#define RTL838X_RMK_OPRI_CTRL			(0xA464)
+#define RTL838X_SCHED_P_TYPE_CTRL(p)		(0xC04C + (((p) << 7)))
+#define RTL838X_SCHED_LB_CTRL(p)		(0xC004 + (((p) << 7)))
+#define RTL838X_FC_P_EGR_DROP_CTRL(p)		(0x6B1C + (((p) << 2)))
+
+/* Debug features */
+#define RTL930X_STAT_PRVTE_DROP_COUNTER0	(0xB5B8)
+
+#define MAX_VLANS 4096
+#define MAX_LAGS 16
+#define MAX_PRIOS 8
+#define RTL930X_PORT_IGNORE 0x3f
+#define MAX_MC_GROUPS 512
+#define UNKNOWN_MC_PMASK (MAX_MC_GROUPS - 1)
+
+enum phy_type {
+	PHY_NONE = 0,
+	PHY_RTL838X_SDS = 1,
+	PHY_RTL8218B_INT = 2,
+	PHY_RTL8218B_EXT = 3,
+	PHY_RTL8214FC = 4,
+	PHY_RTL839X_SDS = 5,
+};
+
+struct rtl838x_port {
+	bool enable;
+	u64 pm;
+	u16 pvid;
+	bool eee_enabled;
+	enum phy_type phy;
+	bool is10G;
+	bool is2G5;
+	u8 sds_num;
+	const struct dsa_port *dp;
+};
+
+struct rtl838x_vlan_info {
+	u64 untagged_ports;
+	u64 tagged_ports;
+	u8 profile_id;
+	bool hash_mc_fid;
+	bool hash_uc_fid;
+	u8 fid;
+};
+
+enum l2_entry_type {
+	L2_INVALID = 0,
+	L2_UNICAST = 1,
+	L2_MULTICAST = 2,
+	IP4_MULTICAST = 3,
+	IP6_MULTICAST = 4,
+};
+
+struct rtl838x_l2_entry {
+	u8 mac[6];
+	u16 vid;
+	u16 rvid;
+	u8 port;
+	bool valid;
+	enum l2_entry_type type;
+	bool is_static;
+	bool is_ip_mc;
+	bool is_ipv6_mc;
+	bool block_da;
+	bool block_sa;
+	bool suspended;
+	bool next_hop;
+	int age;
+	u8 trunk;
+	bool is_trunk;
+	u8 stack_dev;
+	u16 mc_portmask_index;
+	u32 mc_gip;
+	u32 mc_sip;
+	u16 mc_mac_index;
+	u16 nh_route_id;
+	bool nh_vlan_target;  // Only RTL83xx: VLAN used for next hop
+};
+
+struct rtl838x_nexthop {
+	u16 id;		// ID in HW Nexthop table
+	u32 ip;		// IP Addres of nexthop
+	u32 dev_id;
+	u16 port;
+	u16 vid;
+	u16 fid;
+	u64 mac;
+	u16 mac_id;
+	u16 l2_id;	// Index of this next hop forwarding entry in L2 FIB table
+	u16 if_id;
+};
+
+struct rtl838x_switch_priv;
+
+struct rtl838x_reg {
+	void (*mask_port_reg_be)(u64 clear, u64 set, int reg);
+	void (*set_port_reg_be)(u64 set, int reg);
+	u64 (*get_port_reg_be)(int reg);
+	void (*mask_port_reg_le)(u64 clear, u64 set, int reg);
+	void (*set_port_reg_le)(u64 set, int reg);
+	u64 (*get_port_reg_le)(int reg);
+	int stat_port_rst;
+	int stat_rst;
+	int stat_port_std_mib;
+	int (*port_iso_ctrl)(int p);
+	void (*traffic_enable)(int source, int dest);
+	void (*traffic_disable)(int source, int dest);
+	void (*traffic_set)(int source, u64 dest_matrix);
+	u64 (*traffic_get)(int source);
+	int l2_ctrl_0;
+	int l2_ctrl_1;
+	int l2_port_aging_out;
+	int smi_poll_ctrl;
+	int l2_tbl_flush_ctrl;
+	void (*exec_tbl0_cmd)(u32 cmd);
+	void (*exec_tbl1_cmd)(u32 cmd);
+	int (*tbl_access_data_0)(int i);
+	int isr_glb_src;
+	int isr_port_link_sts_chg;
+	int imr_port_link_sts_chg;
+	int imr_glb;
+	void (*vlan_tables_read)(u32 vlan, struct rtl838x_vlan_info *info);
+	void (*vlan_set_tagged)(u32 vlan, struct rtl838x_vlan_info *info);
+	void (*vlan_set_untagged)(u32 vlan, u64 portmask);
+	void (*vlan_profile_dump)(int index);
+	void (*vlan_profile_setup)(int profile);
+	void (*stp_get)(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[]);
+	void (*stp_set)(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[]);
+	int  (*mac_force_mode_ctrl)(int port);
+	int  (*mac_port_ctrl)(int port);
+	int  (*l2_port_new_salrn)(int port);
+	int  (*l2_port_new_sa_fwd)(int port);
+	int mir_ctrl;
+	int mir_dpm;
+	int mir_spm;
+	int mac_link_sts;
+	int mac_link_dup_sts;
+	int  (*mac_link_spd_sts)(int port);
+	int mac_rx_pause_sts;
+	int mac_tx_pause_sts;
+	u64 (*read_l2_entry_using_hash)(u32 hash, u32 position, struct rtl838x_l2_entry *e);
+	void (*write_l2_entry_using_hash)(u32 hash, u32 pos, struct rtl838x_l2_entry *e);
+	u64 (*read_cam)(int idx, struct rtl838x_l2_entry *e);
+	void (*write_cam)(int idx, struct rtl838x_l2_entry *e);
+	int vlan_port_egr_filter;
+	int vlan_port_igr_filter;
+	int vlan_port_pb;
+	int vlan_port_tag_sts_ctrl;
+	int (*rtl838x_vlan_port_tag_sts_ctrl)(int port);
+	int (*trk_mbr_ctr)(int group);
+	int rma_bpdu_fld_pmask;
+	int spcl_trap_eapol_ctrl;
+	void (*init_eee)(struct rtl838x_switch_priv *priv, bool enable);
+	void (*port_eee_set)(struct rtl838x_switch_priv *priv, int port, bool enable);
+	int (*eee_port_ability)(struct rtl838x_switch_priv *priv,
+				struct ethtool_eee *e, int port);
+	u64 (*l2_hash_seed)(u64 mac, u32 vid);
+	u32 (*l2_hash_key)(struct rtl838x_switch_priv *priv, u64 seed);
+	u64 (*read_mcast_pmask)(int idx);
+	void (*write_mcast_pmask)(int idx, u64 portmask);
+	void (*vlan_fwd_on_inner)(int port, bool is_set);
+};
+
+struct rtl838x_switch_priv {
+	/* Switch operation */
+	struct dsa_switch *ds;
+	struct device *dev;
+	u16 id;
+	u16 family_id;
+	char version;
+	struct rtl838x_port ports[57];
+	struct mutex reg_mutex;
+	int link_state_irq;
+	int mirror_group_ports[4];
+	struct mii_bus *mii_bus;
+	const struct rtl838x_reg *r;
+	u8 cpu_port;
+	u8 port_mask;
+	u8 port_width;
+	u64 irq_mask;
+	u32 fib_entries;
+	int l2_bucket_size;
+	struct dentry *dbgfs_dir;
+	int n_lags;
+	u64 lags_port_members[MAX_LAGS];
+	struct net_device *lag_devs[MAX_LAGS];
+	struct notifier_block nb;
+	bool eee_enabled;
+	unsigned long int mc_group_bm[MAX_MC_GROUPS >> 5];
+};
+
+void rtl838x_dbgfs_init(struct rtl838x_switch_priv *priv);
+
+#endif /* _RTL838X_H */

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl839x.c

@@ -0,0 +1,807 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+#include "rtl83xx.h"
+
+extern struct mutex smi_lock;
+extern struct rtl83xx_soc_info soc_info;
+
+void rtl839x_print_matrix(void)
+{
+	volatile u64 *ptr9;
+	int i;
+
+	ptr9 = RTL838X_SW_BASE + RTL839X_PORT_ISO_CTRL(0);
+	for (i = 0; i < 52; i += 4)
+		pr_debug("> %16llx %16llx %16llx %16llx\n",
+			ptr9[i + 0], ptr9[i + 1], ptr9[i + 2], ptr9[i + 3]);
+	pr_debug("CPU_PORT> %16llx\n", ptr9[52]);
+}
+
+static inline int rtl839x_port_iso_ctrl(int p)
+{
+	return RTL839X_PORT_ISO_CTRL(p);
+}
+
+static inline void rtl839x_exec_tbl0_cmd(u32 cmd)
+{
+	sw_w32(cmd, RTL839X_TBL_ACCESS_CTRL_0);
+	do { } while (sw_r32(RTL839X_TBL_ACCESS_CTRL_0) & BIT(16));
+}
+
+static inline void rtl839x_exec_tbl1_cmd(u32 cmd)
+{
+	sw_w32(cmd, RTL839X_TBL_ACCESS_CTRL_1);
+	do { } while (sw_r32(RTL839X_TBL_ACCESS_CTRL_1) & BIT(16));
+}
+
+inline void rtl839x_exec_tbl2_cmd(u32 cmd)
+{
+	sw_w32(cmd, RTL839X_TBL_ACCESS_CTRL_2);
+	do { } while (sw_r32(RTL839X_TBL_ACCESS_CTRL_2) & (1 << 9));
+}
+
+static inline int rtl839x_tbl_access_data_0(int i)
+{
+	return RTL839X_TBL_ACCESS_DATA_0(i);
+}
+
+static void rtl839x_vlan_tables_read(u32 vlan, struct rtl838x_vlan_info *info)
+{
+	u32 u, v, w;
+	// Read VLAN table (0) via register 0
+	struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 0);
+
+	rtl_table_read(r, vlan);
+	u = sw_r32(rtl_table_data(r, 0));
+	v = sw_r32(rtl_table_data(r, 1));
+	w = sw_r32(rtl_table_data(r, 2));
+	rtl_table_release(r);
+
+	info->tagged_ports = u;
+	info->tagged_ports = (info->tagged_ports << 21) | ((v >> 11) & 0x1fffff);
+	info->profile_id = w >> 30 | ((v & 1) << 2);
+	info->hash_mc_fid = !!(w & BIT(2));
+	info->hash_uc_fid = !!(w & BIT(3));
+	info->fid = (v >> 3) & 0xff;
+
+	// Read UNTAG table (0) via table register 1
+	r = rtl_table_get(RTL8390_TBL_1, 0);
+	rtl_table_read(r, vlan);
+	u = sw_r32(rtl_table_data(r, 0));
+	v = sw_r32(rtl_table_data(r, 1));
+	rtl_table_release(r);
+
+	info->untagged_ports = u;
+	info->untagged_ports = (info->untagged_ports << 21) | ((v >> 11) & 0x1fffff);
+}
+
+static void rtl839x_vlan_set_tagged(u32 vlan, struct rtl838x_vlan_info *info)
+{
+	u32 u, v, w;
+	// Access VLAN table (0) via register 0
+	struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 0);
+
+	u = info->tagged_ports >> 21;
+	v = info->tagged_ports << 11;
+	v |= ((u32)info->fid) << 3;
+	v |= info->hash_uc_fid ? BIT(2) : 0;
+	v |= info->hash_mc_fid ? BIT(1) : 0;
+	v |= (info->profile_id & 0x4) ? 1 : 0;
+	w = ((u32)(info->profile_id & 3)) << 30;
+
+	sw_w32(u, rtl_table_data(r, 0));
+	sw_w32(v, rtl_table_data(r, 1));
+	sw_w32(w, rtl_table_data(r, 2));
+
+	rtl_table_write(r, vlan);
+	rtl_table_release(r);
+}
+
+static void rtl839x_vlan_set_untagged(u32 vlan, u64 portmask)
+{
+	u32 u, v;
+
+	// Access UNTAG table (0) via table register 1
+	struct table_reg *r = rtl_table_get(RTL8390_TBL_1, 0);
+
+	u = portmask >> 21;
+	v = portmask << 11;
+
+	sw_w32(u, rtl_table_data(r, 0));
+	sw_w32(v, rtl_table_data(r, 1));
+	rtl_table_write(r, vlan);
+
+	rtl_table_release(r);
+}
+
+/* Sets the L2 forwarding to be based on either the inner VLAN tag or the outer
+ */
+static void rtl839x_vlan_fwd_on_inner(int port, bool is_set)
+{
+	if (is_set)
+		rtl839x_mask_port_reg_be(BIT_ULL(port), 0ULL, RTL839X_VLAN_PORT_FWD);
+	else
+		rtl839x_mask_port_reg_be(0ULL, BIT_ULL(port), RTL839X_VLAN_PORT_FWD);
+}
+
+/*
+ * Hash seed is vid (actually rvid) concatenated with the MAC address
+ */
+static u64 rtl839x_l2_hash_seed(u64 mac, u32 vid)
+{
+	u64 v = vid;
+
+	v <<= 48;
+	v |= mac;
+
+	return v;
+}
+
+/*
+ * Applies the same hash algorithm as the one used currently by the ASIC to the seed
+ * and returns a key into the L2 hash table
+ */
+static u32 rtl839x_l2_hash_key(struct rtl838x_switch_priv *priv, u64 seed)
+{
+	u32 h1, h2, h;
+
+	if (sw_r32(priv->r->l2_ctrl_0) & 1) {
+		h1 = (u32) (((seed >> 60) & 0x3f) ^ ((seed >> 54) & 0x3f)
+				^ ((seed >> 36) & 0x3f) ^ ((seed >> 30) & 0x3f)
+				^ ((seed >> 12) & 0x3f) ^ ((seed >> 6) & 0x3f));
+		h2 = (u32) (((seed >> 48) & 0x3f) ^ ((seed >> 42) & 0x3f)
+				^ ((seed >> 24) & 0x3f) ^ ((seed >> 18) & 0x3f)
+				^ (seed & 0x3f));
+		h = (h1 << 6) | h2;
+	} else {
+		h = (seed >> 60)
+			^ ((((seed >> 48) & 0x3f) << 6) | ((seed >> 54) & 0x3f))
+			^ ((seed >> 36) & 0xfff) ^ ((seed >> 24) & 0xfff)
+			^ ((seed >> 12) & 0xfff) ^ (seed & 0xfff);
+	}
+
+	return h;
+}
+
+static inline int rtl839x_mac_force_mode_ctrl(int p)
+{
+	return RTL839X_MAC_FORCE_MODE_CTRL + (p << 2);
+}
+
+static inline int rtl839x_mac_port_ctrl(int p)
+{
+	return RTL839X_MAC_PORT_CTRL(p);
+}
+
+static inline int rtl839x_l2_port_new_salrn(int p)
+{
+	return RTL839X_L2_PORT_NEW_SALRN(p);
+}
+
+static inline int rtl839x_l2_port_new_sa_fwd(int p)
+{
+	return RTL839X_L2_PORT_NEW_SA_FWD(p);
+}
+
+static inline int rtl839x_mac_link_spd_sts(int p)
+{
+	return RTL839X_MAC_LINK_SPD_STS(p);
+}
+
+static inline int rtl839x_trk_mbr_ctr(int group)
+{
+	return RTL839X_TRK_MBR_CTR + (group << 3);
+}
+
+static void rtl839x_fill_l2_entry(u32 r[], struct rtl838x_l2_entry *e)
+{
+	/* Table contains different entry types, we need to identify the right one:
+	 * Check for MC entries, first
+	 */
+	e->is_ip_mc = !!(r[2] & BIT(31));
+	e->is_ipv6_mc = !!(r[2] & BIT(30));
+	e->type = L2_INVALID;
+	if (!e->is_ip_mc) {
+		e->mac[0] = (r[0] >> 12);
+		e->mac[1] = (r[0] >> 4);
+		e->mac[2] = ((r[1] >> 28) | (r[0] << 4));
+		e->mac[3] = (r[1] >> 20);
+		e->mac[4] = (r[1] >> 12);
+		e->mac[5] = (r[1] >> 4);
+
+		/* Is it a unicast entry? check multicast bit */
+		if (!(e->mac[0] & 1)) {
+			e->is_static = !!((r[2] >> 18) & 1);
+			e->vid = (r[2] >> 4) & 0xfff;
+			e->rvid = (r[0] >> 20) & 0xfff;
+			e->port = (r[2] >> 24) & 0x3f;
+			e->block_da = !!(r[2] & (1 << 19));
+			e->block_sa = !!(r[2] & (1 << 20));
+			e->suspended = !!(r[2] & (1 << 17));
+			e->next_hop = !!(r[2] & (1 << 16));
+			if (e->next_hop)
+				pr_info("Found next hop entry, need to read data\n");
+			e->age = (r[2] >> 21) & 3;
+			e->valid = true;
+			if (!(r[2] & 0xc0fd0000)) /* Check for valid entry */
+				e->valid = false;
+			else
+				e->type = L2_UNICAST;
+		} else {
+			e->valid = true;
+			e->type = L2_MULTICAST;
+			e->mc_portmask_index = (r[2]>>6) & 0xfff;
+		}
+	}
+	if (e->is_ip_mc) {
+		e->valid = true;
+		e->type = IP4_MULTICAST;
+	}
+	if (e->is_ipv6_mc) {
+		e->valid = true;
+		e->type = IP6_MULTICAST;
+	}
+}
+
+/*
+ * Fills the 3 SoC table registers r[] with the information of in the rtl838x_l2_entry
+ */
+static void rtl839x_fill_l2_row(u32 r[], struct rtl838x_l2_entry *e)
+{
+	if (!e->valid) {
+		r[0] = r[1] = r[2] = 0;
+		return;
+	}
+
+	r[2] = e->is_ip_mc ? BIT(31) : 0;
+	r[2] |= e->is_ipv6_mc ? BIT(30) : 0;
+
+	if (!e->is_ip_mc  && !e->is_ipv6_mc) {
+		r[0] = ((u32)e->mac[0]) << 12;
+		r[0] |= ((u32)e->mac[1]) << 4;
+		r[0] |= ((u32)e->mac[2]) >> 4;
+		r[1] = ((u32)e->mac[2]) << 28;
+		r[1] |= ((u32)e->mac[3]) << 20;
+		r[1] |= ((u32)e->mac[4]) << 12;
+		r[1] |= ((u32)e->mac[5]) << 4;
+
+		if (!(e->mac[0] & 1)) { // Not multicast
+			r[2] |= e->is_static ? BIT(18) : 0;
+			r[2] |= e->vid << 4;
+			r[0] |= ((u32)e->rvid) << 20;
+			r[2] |= e->port << 24;
+			r[2] |= e->block_da ? BIT(19) : 0;
+			r[2] |= e->block_sa ? BIT(20) : 0;
+			r[2] |= e->suspended ? BIT(17) : 0;
+			if (e->next_hop) {
+				r[2] |= BIT(16);
+				r[2] |= e->nh_vlan_target ? BIT(15) : 0;
+				r[2] |= (e->nh_route_id & 0x7ff) << 4;
+			}
+			r[2] |= ((u32)e->age) << 21;
+		} else {  // L2 Multicast
+			r[0] |= ((u32)e->rvid) << 20;
+			r[2] |= ((u32)e->mc_portmask_index) << 6;
+			pr_debug("Write L2 MC entry: %08x %08x %08x\n", r[0], r[1], r[2]);
+		}
+	} else { // IPv4 or IPv6 MC entry
+		r[0] = ((u32)e->rvid) << 20;
+		r[2] |= ((u32)e->mc_portmask_index) << 6;
+		r[1] = e->mc_gip;
+	}
+}
+
+/*
+ * Read an L2 UC or MC entry out of a hash bucket of the L2 forwarding table
+ * hash is the id of the bucket and pos is the position of the entry in that bucket
+ * The data read from the SoC is filled into rtl838x_l2_entry
+ */
+static u64 rtl839x_read_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
+{
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 0);
+	u32 idx = (0 << 14) | (hash << 2) | pos; // Search SRAM, with hash and at pos in bucket
+	int i;
+
+	rtl_table_read(q, idx);
+	for (i= 0; i < 3; i++)
+		r[i] = sw_r32(rtl_table_data(q, i));
+
+	rtl_table_release(q);
+
+	rtl839x_fill_l2_entry(r, e);
+	if (!e->valid)
+		return 0;
+
+	return rtl839x_l2_hash_seed(ether_addr_to_u64(&e->mac[0]), e->rvid);
+}
+
+static void rtl839x_write_l2_entry_using_hash(u32 hash, u32 pos, struct rtl838x_l2_entry *e)
+{
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 0);
+	int i;
+
+	u32 idx = (0 << 14) | (hash << 2) | pos; // Access SRAM, with hash and at pos in bucket
+
+	rtl839x_fill_l2_row(r, e);
+
+	for (i= 0; i < 3; i++)
+		sw_w32(r[i], rtl_table_data(q, i));
+
+	rtl_table_write(q, idx);
+	rtl_table_release(q);
+}
+
+static u64 rtl839x_read_cam(int idx, struct rtl838x_l2_entry *e)
+{
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 1); // Access L2 Table 1
+	int i;
+
+	rtl_table_read(q, idx);
+	for (i= 0; i < 3; i++)
+		r[i] = sw_r32(rtl_table_data(q, i));
+
+	rtl_table_release(q);
+
+	rtl839x_fill_l2_entry(r, e);
+	if (!e->valid)
+		return 0;
+
+	pr_debug("Found in CAM: R1 %x R2 %x R3 %x\n", r[0], r[1], r[2]);
+
+	// Return MAC with concatenated VID ac concatenated ID
+	return rtl839x_l2_hash_seed(ether_addr_to_u64(&e->mac[0]), e->rvid);
+}
+
+static void rtl839x_write_cam(int idx, struct rtl838x_l2_entry *e)
+{
+	u32 r[3];
+	struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 1); // Access L2 Table 1
+	int i;
+
+	rtl839x_fill_l2_row(r, e);
+
+	for (i= 0; i < 3; i++)
+		sw_w32(r[i], rtl_table_data(q, i));
+
+	rtl_table_write(q, idx);
+	rtl_table_release(q);
+}
+
+static u64 rtl839x_read_mcast_pmask(int idx)
+{
+	u64 portmask;
+	// Read MC_PMSK (2) via register RTL8390_TBL_L2
+	struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 2);
+
+	rtl_table_read(q, idx);
+	portmask = sw_r32(rtl_table_data(q, 0));
+	portmask <<= 32;
+	portmask |= sw_r32(rtl_table_data(q, 1));
+	portmask >>= 11;  // LSB is bit 11 in data registers
+	rtl_table_release(q);
+
+	return portmask;
+}
+
+static void rtl839x_write_mcast_pmask(int idx, u64 portmask)
+{
+	// Access MC_PMSK (2) via register RTL8380_TBL_L2
+	struct table_reg *q = rtl_table_get(RTL8390_TBL_L2, 2);
+
+	portmask <<= 11; // LSB is bit 11 in data registers
+	sw_w32((u32)(portmask >> 32), rtl_table_data(q, 0));
+	sw_w32((u32)((portmask & 0xfffff800)), rtl_table_data(q, 1));
+	rtl_table_write(q, idx);
+	rtl_table_release(q);
+}
+
+static void rtl839x_vlan_profile_setup(int profile)
+{
+	u32 p[2];
+	u32 pmask_id = UNKNOWN_MC_PMASK;
+
+	p[0] = pmask_id; // Use portmaks 0xfff for unknown IPv6 MC flooding
+	// Enable L2 Learning BIT 0, portmask UNKNOWN_MC_PMASK for IP/L2-MC traffic flooding
+	p[1] = 1 | pmask_id << 1 | pmask_id << 13;
+
+	sw_w32(p[0], RTL839X_VLAN_PROFILE(profile));
+	sw_w32(p[1], RTL839X_VLAN_PROFILE(profile) + 4);
+
+	rtl839x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0x001fffffffffffff);
+}
+
+static inline int rtl839x_vlan_port_egr_filter(int port)
+{
+	return RTL839X_VLAN_PORT_EGR_FLTR(port);
+}
+
+static inline int rtl839x_vlan_port_igr_filter(int port)
+{
+	return RTL839X_VLAN_PORT_IGR_FLTR(port);
+}
+
+u64 rtl839x_traffic_get(int source)
+{
+	return rtl839x_get_port_reg_be(rtl839x_port_iso_ctrl(source));
+}
+
+void rtl839x_traffic_set(int source, u64 dest_matrix)
+{
+	rtl839x_set_port_reg_be(dest_matrix, rtl839x_port_iso_ctrl(source));
+}
+
+void rtl839x_traffic_enable(int source, int dest)
+{
+	rtl839x_mask_port_reg_be(0, BIT_ULL(dest), rtl839x_port_iso_ctrl(source));
+}
+
+void rtl839x_traffic_disable(int source, int dest)
+{
+	rtl839x_mask_port_reg_be(BIT_ULL(dest), 0, rtl839x_port_iso_ctrl(source));
+}
+
+irqreturn_t rtl839x_switch_irq(int irq, void *dev_id)
+{
+	struct dsa_switch *ds = dev_id;
+	u32 status = sw_r32(RTL839X_ISR_GLB_SRC);
+	u64 ports = rtl839x_get_port_reg_le(RTL839X_ISR_PORT_LINK_STS_CHG);
+	u64 link;
+	int i;
+
+	/* Clear status */
+	rtl839x_set_port_reg_le(ports, RTL839X_ISR_PORT_LINK_STS_CHG);
+	pr_debug("RTL8390 Link change: status: %x, ports %llx\n", status, ports);
+
+	for (i = 0; i < RTL839X_CPU_PORT; i++) {
+		if (ports & BIT_ULL(i)) {
+			link = rtl839x_get_port_reg_le(RTL839X_MAC_LINK_STS);
+			if (link & BIT_ULL(i))
+				dsa_port_phylink_mac_change(ds, i, true);
+			else
+				dsa_port_phylink_mac_change(ds, i, false);
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+// TODO: unused
+int rtl8390_sds_power(int mac, int val)
+{
+	u32 offset = (mac == 48) ? 0x0 : 0x100;
+	u32 mode = val ? 0 : 1;
+
+	pr_debug("In %s: mac %d, set %d\n", __func__, mac, val);
+
+	if ((mac != 48) && (mac != 49)) {
+		pr_err("%s: not an SFP port: %d\n", __func__, mac);
+		return -1;
+	}
+
+	// Set bit 1003. 1000 starts at 7c
+	sw_w32_mask(BIT(11), mode << 11, RTL839X_SDS12_13_PWR0 + offset);
+
+	return 0;
+}
+
+int rtl839x_read_phy(u32 port, u32 page, u32 reg, u32 *val)
+{
+	u32 v;
+
+	if (port > 63 || page > 4095 || reg > 31)
+		return -ENOTSUPP;
+
+	mutex_lock(&smi_lock);
+
+	sw_w32_mask(0xffff0000, port << 16, RTL839X_PHYREG_DATA_CTRL);
+	v = reg << 5 | page << 10 | ((page == 0x1fff) ? 0x1f : 0) << 23;
+	sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
+
+	sw_w32(0x1ff, RTL839X_PHYREG_CTRL);
+
+	v |= 1;
+	sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
+
+	do {
+	} while (sw_r32(RTL839X_PHYREG_ACCESS_CTRL) & 0x1);
+
+	*val = sw_r32(RTL839X_PHYREG_DATA_CTRL) & 0xffff;
+
+	mutex_unlock(&smi_lock);
+	return 0;
+}
+
+int rtl839x_write_phy(u32 port, u32 page, u32 reg, u32 val)
+{
+	u32 v;
+	int err = 0;
+
+	val &= 0xffff;
+	if (port > 63 || page > 4095 || reg > 31)
+		return -ENOTSUPP;
+
+	mutex_lock(&smi_lock);
+
+	// Set PHY to access
+	rtl839x_set_port_reg_le(BIT_ULL(port), RTL839X_PHYREG_PORT_CTRL);
+
+	sw_w32_mask(0xffff0000, val << 16, RTL839X_PHYREG_DATA_CTRL);
+
+	v = reg << 5 | page << 10 | ((page == 0x1fff) ? 0x1f : 0) << 23;
+	sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
+
+	sw_w32(0x1ff, RTL839X_PHYREG_CTRL);
+
+	v |= BIT(3) | 1; /* Write operation and execute */
+	sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
+
+	do {
+	} while (sw_r32(RTL839X_PHYREG_ACCESS_CTRL) & 0x1);
+
+	if (sw_r32(RTL839X_PHYREG_ACCESS_CTRL) & 0x2)
+		err = -EIO;
+
+	mutex_unlock(&smi_lock);
+	return err;
+}
+
+/*
+ * Read an mmd register of the PHY
+ */
+int rtl839x_read_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 *val)
+{
+	int err = 0;
+	u32 v;
+
+	mutex_lock(&smi_lock);
+
+	// Set PHY to access
+	sw_w32_mask(0xffff << 16, port << 16, RTL839X_PHYREG_DATA_CTRL);
+
+	// Set MMD device number and register to write to
+	sw_w32(devnum << 16 | (regnum & 0xffff), RTL839X_PHYREG_MMD_CTRL);
+
+	v = BIT(2) | BIT(0); // MMD-access | EXEC
+	sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
+
+	do {
+		v = sw_r32(RTL839X_PHYREG_ACCESS_CTRL);
+	} while (v & BIT(0));
+	// There is no error-checking via BIT 1 of v, as it does not seem to be set correctly
+	*val = (sw_r32(RTL839X_PHYREG_DATA_CTRL) & 0xffff);
+	pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, *val, err);
+
+	mutex_unlock(&smi_lock);
+
+	return err;
+}
+
+/*
+ * Write to an mmd register of the PHY
+ */
+int rtl839x_write_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 val)
+{
+	int err = 0;
+	u32 v;
+
+	mutex_lock(&smi_lock);
+
+	// Set PHY to access
+	rtl839x_set_port_reg_le(BIT_ULL(port), RTL839X_PHYREG_PORT_CTRL);
+
+	// Set data to write
+	sw_w32_mask(0xffff << 16, val << 16, RTL839X_PHYREG_DATA_CTRL);
+
+	// Set MMD device number and register to write to
+	sw_w32(devnum << 16 | (regnum & 0xffff), RTL839X_PHYREG_MMD_CTRL);
+
+	v = BIT(3) | BIT(2) | BIT(0); // WRITE | MMD-access | EXEC
+	sw_w32(v, RTL839X_PHYREG_ACCESS_CTRL);
+
+	do {
+		v = sw_r32(RTL839X_PHYREG_ACCESS_CTRL);
+	} while (v & BIT(0));
+
+	pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, val, err);
+	mutex_unlock(&smi_lock);
+	return err;
+}
+
+void rtl8390_get_version(struct rtl838x_switch_priv *priv)
+{
+	u32 info;
+
+	sw_w32_mask(0xf << 28, 0xa << 28, RTL839X_CHIP_INFO);
+	info = sw_r32(RTL839X_CHIP_INFO);
+	pr_debug("Chip-Info: %x\n", info);
+	priv->version = RTL8390_VERSION_A;
+}
+
+void rtl839x_vlan_profile_dump(int profile)
+{
+	u32 p[2];
+
+	if (profile < 0 || profile > 7)
+		return;
+
+	p[0] = sw_r32(RTL839X_VLAN_PROFILE(profile));
+	p[1] = sw_r32(RTL839X_VLAN_PROFILE(profile) + 4);
+
+	pr_info("VLAN profile %d: L2 learning: %d, UNKN L2MC FLD PMSK %d, \
+		UNKN IPMC FLD PMSK %d, UNKN IPv6MC FLD PMSK: %d",
+		profile, p[1] & 1, (p[1] >> 1) & 0xfff, (p[1] >> 13) & 0xfff,
+		(p[0]) & 0xfff);
+	pr_info("VLAN profile %d: raw %08x, %08x\n", profile, p[0], p[1]);
+}
+
+static void rtl839x_stp_get(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
+{
+	int i;
+	u32 cmd = 1 << 16 /* Execute cmd */
+		| 0 << 15 /* Read */
+		| 5 << 12 /* Table type 0b101 */
+		| (msti & 0xfff);
+	priv->r->exec_tbl0_cmd(cmd);
+
+	for (i = 0; i < 4; i++)
+		port_state[i] = sw_r32(priv->r->tbl_access_data_0(i));
+}
+
+static void rtl839x_stp_set(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
+{
+	int i;
+	u32 cmd = 1 << 16 /* Execute cmd */
+		| 1 << 15 /* Write */
+		| 5 << 12 /* Table type 0b101 */
+		| (msti & 0xfff);
+	for (i = 0; i < 4; i++)
+		sw_w32(port_state[i], priv->r->tbl_access_data_0(i));
+	priv->r->exec_tbl0_cmd(cmd);
+}
+
+/*
+ * Enables or disables the EEE/EEEP capability of a port
+ */
+void rtl839x_port_eee_set(struct rtl838x_switch_priv *priv, int port, bool enable)
+{
+	u32 v;
+
+	// This works only for Ethernet ports, and on the RTL839X, ports above 47 are SFP
+	if (port >= 48)
+		return;
+
+	enable = true;
+	pr_debug("In %s: setting port %d to %d\n", __func__, port, enable);
+	v = enable ? 0xf : 0x0;
+
+	// Set EEE for 100, 500, 1000MBit and 10GBit
+	sw_w32_mask(0xf << 8, v << 8, rtl839x_mac_force_mode_ctrl(port));
+
+	// Set TX/RX EEE state
+	v = enable ? 0x3 : 0x0;
+	sw_w32(v, RTL839X_EEE_CTRL(port));
+
+	priv->ports[port].eee_enabled = enable;
+}
+
+/*
+ * Get EEE own capabilities and negotiation result
+ */
+int rtl839x_eee_port_ability(struct rtl838x_switch_priv *priv, struct ethtool_eee *e, int port)
+{
+	u64 link, a;
+
+	if (port >= 48)
+		return 0;
+
+	link = rtl839x_get_port_reg_le(RTL839X_MAC_LINK_STS);
+	if (!(link & BIT_ULL(port)))
+		return 0;
+
+	if (sw_r32(rtl839x_mac_force_mode_ctrl(port)) & BIT(8))
+		e->advertised |= ADVERTISED_100baseT_Full;
+
+	if (sw_r32(rtl839x_mac_force_mode_ctrl(port)) & BIT(10))
+		e->advertised |= ADVERTISED_1000baseT_Full;
+
+	a = rtl839x_get_port_reg_le(RTL839X_MAC_EEE_ABLTY);
+	pr_info("Link partner: %016llx\n", a);
+	if (rtl839x_get_port_reg_le(RTL839X_MAC_EEE_ABLTY) & BIT_ULL(port)) {
+		e->lp_advertised = ADVERTISED_100baseT_Full;
+		e->lp_advertised |= ADVERTISED_1000baseT_Full;
+		return 1;
+	}
+
+	return 0;
+}
+
+static void rtl839x_init_eee(struct rtl838x_switch_priv *priv, bool enable)
+{
+	int i;
+
+	pr_info("Setting up EEE, state: %d\n", enable);
+
+	// Set wake timer for TX and pause timer both to 0x21
+	sw_w32_mask(0xff << 20| 0xff, 0x21 << 20| 0x21, RTL839X_EEE_TX_TIMER_GELITE_CTRL);
+	// Set pause wake timer for GIGA-EEE to 0x11
+	sw_w32_mask(0xff << 20, 0x11 << 20, RTL839X_EEE_TX_TIMER_GIGA_CTRL);
+	// Set pause wake timer for 10GBit ports to 0x11
+	sw_w32_mask(0xff << 20, 0x11 << 20, RTL839X_EEE_TX_TIMER_10G_CTRL);
+
+	// Setup EEE on all ports
+	for (i = 0; i < priv->cpu_port; i++) {
+		if (priv->ports[i].phy)
+			rtl839x_port_eee_set(priv, i, enable);
+	}
+	priv->eee_enabled = enable;
+}
+
+const struct rtl838x_reg rtl839x_reg = {
+	.mask_port_reg_be = rtl839x_mask_port_reg_be,
+	.set_port_reg_be = rtl839x_set_port_reg_be,
+	.get_port_reg_be = rtl839x_get_port_reg_be,
+	.mask_port_reg_le = rtl839x_mask_port_reg_le,
+	.set_port_reg_le = rtl839x_set_port_reg_le,
+	.get_port_reg_le = rtl839x_get_port_reg_le,
+	.stat_port_rst = RTL839X_STAT_PORT_RST,
+	.stat_rst = RTL839X_STAT_RST,
+	.stat_port_std_mib = RTL839X_STAT_PORT_STD_MIB,
+	.traffic_enable = rtl839x_traffic_enable,
+	.traffic_disable = rtl839x_traffic_disable,
+	.traffic_get = rtl839x_traffic_get,
+	.traffic_set = rtl839x_traffic_set,
+	.port_iso_ctrl = rtl839x_port_iso_ctrl,
+	.l2_ctrl_0 = RTL839X_L2_CTRL_0,
+	.l2_ctrl_1 = RTL839X_L2_CTRL_1,
+	.l2_port_aging_out = RTL839X_L2_PORT_AGING_OUT,
+	.smi_poll_ctrl = RTL839X_SMI_PORT_POLLING_CTRL,
+	.l2_tbl_flush_ctrl = RTL839X_L2_TBL_FLUSH_CTRL,
+	.exec_tbl0_cmd = rtl839x_exec_tbl0_cmd,
+	.exec_tbl1_cmd = rtl839x_exec_tbl1_cmd,
+	.tbl_access_data_0 = rtl839x_tbl_access_data_0,
+	.isr_glb_src = RTL839X_ISR_GLB_SRC,
+	.isr_port_link_sts_chg = RTL839X_ISR_PORT_LINK_STS_CHG,
+	.imr_port_link_sts_chg = RTL839X_IMR_PORT_LINK_STS_CHG,
+	.imr_glb = RTL839X_IMR_GLB,
+	.vlan_tables_read = rtl839x_vlan_tables_read,
+	.vlan_set_tagged = rtl839x_vlan_set_tagged,
+	.vlan_set_untagged = rtl839x_vlan_set_untagged,
+	.vlan_profile_dump = rtl839x_vlan_profile_dump,
+	.vlan_profile_setup = rtl839x_vlan_profile_setup,
+	.vlan_fwd_on_inner = rtl839x_vlan_fwd_on_inner,
+	.stp_get = rtl839x_stp_get,
+	.stp_set = rtl839x_stp_set,
+	.mac_force_mode_ctrl = rtl839x_mac_force_mode_ctrl,
+	.mac_port_ctrl = rtl839x_mac_port_ctrl,
+	.l2_port_new_salrn = rtl839x_l2_port_new_salrn,
+	.l2_port_new_sa_fwd = rtl839x_l2_port_new_sa_fwd,
+	.mir_ctrl = RTL839X_MIR_CTRL,
+	.mir_dpm = RTL839X_MIR_DPM_CTRL,
+	.mir_spm = RTL839X_MIR_SPM_CTRL,
+	.mac_link_sts = RTL839X_MAC_LINK_STS,
+	.mac_link_dup_sts = RTL839X_MAC_LINK_DUP_STS,
+	.mac_link_spd_sts = rtl839x_mac_link_spd_sts,
+	.mac_rx_pause_sts = RTL839X_MAC_RX_PAUSE_STS,
+	.mac_tx_pause_sts = RTL839X_MAC_TX_PAUSE_STS,
+	.read_l2_entry_using_hash = rtl839x_read_l2_entry_using_hash,
+	.write_l2_entry_using_hash = rtl839x_write_l2_entry_using_hash,
+	.read_cam = rtl839x_read_cam,
+	.write_cam = rtl839x_write_cam,
+	.vlan_port_egr_filter = RTL839X_VLAN_PORT_EGR_FLTR(0),
+	.vlan_port_igr_filter = RTL839X_VLAN_PORT_IGR_FLTR(0),
+	.vlan_port_pb = RTL839X_VLAN_PORT_PB_VLAN,
+	.vlan_port_tag_sts_ctrl = RTL839X_VLAN_PORT_TAG_STS_CTRL,
+	.trk_mbr_ctr = rtl839x_trk_mbr_ctr,
+	.rma_bpdu_fld_pmask = RTL839X_RMA_BPDU_FLD_PMSK,
+	.spcl_trap_eapol_ctrl = RTL839X_SPCL_TRAP_EAPOL_CTRL,
+	.init_eee = rtl839x_init_eee,
+	.port_eee_set = rtl839x_port_eee_set,
+	.eee_port_ability = rtl839x_eee_port_ability,
+	.l2_hash_seed = rtl839x_l2_hash_seed, 
+	.l2_hash_key = rtl839x_l2_hash_key,
+	.read_mcast_pmask = rtl839x_read_mcast_pmask,
+	.write_mcast_pmask = rtl839x_write_mcast_pmask,
+};

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl83xx.h

@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _NET_DSA_RTL83XX_H
+#define _NET_DSA_RTL83XX_H
+
+#include <net/dsa.h>
+#include "rtl838x.h"
+
+
+#define RTL8380_VERSION_A 'A'
+#define RTL8390_VERSION_A 'A'
+#define RTL8380_VERSION_B 'B'
+
+struct fdb_update_work {
+	struct work_struct work;
+	struct net_device *ndev;
+	u64 macs[];
+};
+
+#define MIB_DESC(_size, _offset, _name) {.size = _size, .offset = _offset, .name = _name}
+struct rtl83xx_mib_desc {
+	unsigned int size;
+	unsigned int offset;
+	const char *name;
+};
+
+/* API for switch table access */
+struct table_reg {
+	u16 addr;
+	u16 data;
+	u8  max_data;
+	u8 c_bit;
+	u8 t_bit;
+	u8 rmode;
+	u8 tbl;
+	struct mutex lock;
+};
+
+#define TBL_DESC(_addr, _data, _max_data, _c_bit, _t_bit, _rmode) \
+		{  .addr = _addr, .data = _data, .max_data = _max_data, .c_bit = _c_bit, \
+		    .t_bit = _t_bit, .rmode = _rmode \
+		}
+
+typedef enum {
+	RTL8380_TBL_L2 = 0,
+	RTL8380_TBL_0,
+	RTL8380_TBL_1,
+	RTL8390_TBL_L2,
+	RTL8390_TBL_0,
+	RTL8390_TBL_1,
+	RTL8390_TBL_2,
+	RTL9300_TBL_L2,
+	RTL9300_TBL_0,
+	RTL9300_TBL_1,
+	RTL9300_TBL_2,
+	RTL9300_TBL_HSB,
+	RTL9300_TBL_HSA,
+	RTL9310_TBL_0,
+	RTL9310_TBL_1,
+	RTL9310_TBL_2,
+	RTL9310_TBL_3,
+	RTL9310_TBL_4,
+	RTL9310_TBL_5,
+	RTL_TBL_END
+} rtl838x_tbl_reg_t;
+
+void rtl_table_init(void);
+struct table_reg *rtl_table_get(rtl838x_tbl_reg_t r, int t);
+void rtl_table_release(struct table_reg *r);
+void rtl_table_read(struct table_reg *r, int idx);
+void rtl_table_write(struct table_reg *r, int idx);
+inline u16 rtl_table_data(struct table_reg *r, int i);
+inline u32 rtl_table_data_r(struct table_reg *r, int i);
+inline void rtl_table_data_w(struct table_reg *r, u32 v, int i);
+
+void __init rtl83xx_setup_qos(struct rtl838x_switch_priv *priv);
+int read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int write_phy(u32 port, u32 page, u32 reg, u32 val);
+
+/* Port register accessor functions for the RTL839x and RTL931X SoCs */
+void rtl839x_mask_port_reg_be(u64 clear, u64 set, int reg);
+u64 rtl839x_get_port_reg_be(int reg);
+void rtl839x_set_port_reg_be(u64 set, int reg);
+void rtl839x_mask_port_reg_le(u64 clear, u64 set, int reg);
+void rtl839x_set_port_reg_le(u64 set, int reg);
+u64 rtl839x_get_port_reg_le(int reg);
+
+/* Port register accessor functions for the RTL838x and RTL930X SoCs */
+void rtl838x_mask_port_reg(u64 clear, u64 set, int reg);
+void rtl838x_set_port_reg(u64 set, int reg);
+u64 rtl838x_get_port_reg(int reg);
+
+/* RTL838x-specific */
+u32 rtl838x_hash(struct rtl838x_switch_priv *priv, u64 seed);
+irqreturn_t rtl838x_switch_irq(int irq, void *dev_id);
+void rtl8380_get_version(struct rtl838x_switch_priv *priv);
+void rtl838x_vlan_profile_dump(int index);
+int rtl83xx_dsa_phy_read(struct dsa_switch *ds, int phy_addr, int phy_reg);
+void rtl8380_sds_rst(int mac);
+int rtl8380_sds_power(int mac, int val);
+void rtl838x_print_matrix(void);
+
+/* RTL839x-specific */
+u32 rtl839x_hash(struct rtl838x_switch_priv *priv, u64 seed);
+irqreturn_t rtl839x_switch_irq(int irq, void *dev_id);
+void rtl8390_get_version(struct rtl838x_switch_priv *priv);
+void rtl839x_vlan_profile_dump(int index);
+int rtl83xx_dsa_phy_write(struct dsa_switch *ds, int phy_addr, int phy_reg, u16 val);
+void rtl839x_exec_tbl2_cmd(u32 cmd);
+void rtl839x_print_matrix(void);
+
+/* RTL930x-specific */
+u32 rtl930x_hash(struct rtl838x_switch_priv *priv, u64 seed);
+irqreturn_t rtl930x_switch_irq(int irq, void *dev_id);
+irqreturn_t rtl839x_switch_irq(int irq, void *dev_id);
+void rtl930x_vlan_profile_dump(int index);
+int rtl9300_sds_power(int mac, int val);
+void rtl9300_sds_rst(int sds_num, u32 mode);
+void rtl930x_print_matrix(void);
+
+/* RTL931x-specific */
+irqreturn_t rtl931x_switch_irq(int irq, void *dev_id);
+
+#endif /* _NET_DSA_RTL83XX_H */
+

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl931x.c

@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <asm/mach-rtl838x/mach-rtl83xx.h>
+#include "rtl83xx.h"
+
+extern struct mutex smi_lock;
+extern struct rtl83xx_soc_info soc_info;
+
+inline void rtl931x_exec_tbl0_cmd(u32 cmd)
+{
+	sw_w32(cmd, RTL931X_TBL_ACCESS_CTRL_0);
+	do { } while (sw_r32(RTL931X_TBL_ACCESS_CTRL_0) & (1 << 20));
+}
+
+inline void rtl931x_exec_tbl1_cmd(u32 cmd)
+{
+	sw_w32(cmd, RTL931X_TBL_ACCESS_CTRL_1);
+	do { } while (sw_r32(RTL931X_TBL_ACCESS_CTRL_1) & (1 << 17));
+}
+
+inline int rtl931x_tbl_access_data_0(int i)
+{
+	return RTL931X_TBL_ACCESS_DATA_0(i);
+}
+
+void rtl931x_vlan_profile_dump(int index)
+{
+	u64 profile[4];
+
+	if (index < 0 || index > 15)
+		return;
+
+	profile[0] = sw_r32(RTL931X_VLAN_PROFILE_SET(index));
+	profile[1] = (sw_r32(RTL931X_VLAN_PROFILE_SET(index) + 4) & 0x1FFFFFFFULL) << 32
+		| (sw_r32(RTL931X_VLAN_PROFILE_SET(index) + 8) & 0xFFFFFFFF);
+	profile[2] = (sw_r32(RTL931X_VLAN_PROFILE_SET(index) + 16) & 0xFFFFFFFFULL) << 32
+		| (sw_r32(RTL931X_VLAN_PROFILE_SET(index) + 12) & 0x1FFFFFFULL);
+	profile[3] = (sw_r32(RTL931X_VLAN_PROFILE_SET(index) + 20) & 0x1FFFFFFFULL) << 32
+		| (sw_r32(RTL931X_VLAN_PROFILE_SET(index) + 24) & 0xFFFFFFFF);
+
+	pr_info("VLAN %d: L2 learning: %d, L2 Unknown MultiCast Field %llx, \
+		IPv4 Unknown MultiCast Field %llx, IPv6 Unknown MultiCast Field: %llx",
+		index, (u32) (profile[0] & (3 << 14)), profile[1], profile[2], profile[3]);
+}
+
+static void rtl931x_stp_get(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
+{
+	int i;
+	u32 cmd = 1 << 20 /* Execute cmd */
+		| 0 << 19 /* Read */
+		| 2 << 15 /* Table type 0b10 */
+		| (msti & 0x3fff);
+	priv->r->exec_tbl0_cmd(cmd);
+
+	for (i = 0; i < 4; i++)
+		port_state[i] = sw_r32(priv->r->tbl_access_data_0(i));
+}
+
+static void rtl931x_stp_set(struct rtl838x_switch_priv *priv, u16 msti, u32 port_state[])
+{
+	int i;
+	u32 cmd = 1 << 20 /* Execute cmd */
+		| 1 << 19 /* Write */
+		| 5 << 15 /* Table type 0b101 */
+		| (msti & 0x3fff);
+	for (i = 0; i < 4; i++)
+		sw_w32(port_state[i], priv->r->tbl_access_data_0(i));
+	priv->r->exec_tbl0_cmd(cmd);
+}
+
+inline static int rtl931x_trk_mbr_ctr(int group)
+{
+	return RTL931X_TRK_MBR_CTRL + (group << 2);
+}
+
+static void rtl931x_vlan_tables_read(u32 vlan, struct rtl838x_vlan_info *info)
+{
+	u32 v, w, x, y;
+	// Read VLAN table (3) via register 0
+	struct table_reg *r = rtl_table_get(RTL9310_TBL_0, 3);
+
+	rtl_table_read(r, vlan);
+	v = sw_r32(rtl_table_data(r, 0));
+	w = sw_r32(rtl_table_data(r, 1));
+	x = sw_r32(rtl_table_data(r, 2));
+	y = sw_r32(rtl_table_data(r, 3));
+	pr_debug("VLAN_READ %d: %08x %08x\n", vlan, v, w);
+	rtl_table_release(r);
+
+	info->tagged_ports = ((u64) v) << 25 | (w >> 7);
+	info->profile_id = (x >> 16) & 0xf;
+	info->hash_mc_fid = !!(x & BIT(30));
+	info->hash_uc_fid = !!(x & BIT(31));
+	info->fid = w & 0x7f;
+	// TODO: use also info in 4th register
+
+	// Read UNTAG table via table register 3
+	r = rtl_table_get(RTL9310_TBL_3, 0);
+	rtl_table_read(r, vlan);
+	v = ((u64)sw_r32(rtl_table_data(r, 0))) << 25;
+	v |= sw_r32(rtl_table_data(r, 1)) >> 7;
+	rtl_table_release(r);
+
+	info->untagged_ports = v;
+}
+
+static void rtl931x_vlan_set_tagged(u32 vlan, struct rtl838x_vlan_info *info)
+{
+	u32 v, w, x;
+	// Access VLAN table (1) via register 0
+	struct table_reg *r = rtl_table_get(RTL9310_TBL_0, 3);
+
+	v = info->tagged_ports << 7;
+	w = (info->tagged_ports & 0x7f000000) << 25;
+	w |= (u32)info->fid;
+	x = info->profile_id << 16;
+	w |= info->hash_mc_fid ? BIT(30) : 0;
+	w |= info->hash_uc_fid ? BIT(31) : 0;
+	// TODO: use also info in 4th register
+
+	sw_w32(v, rtl_table_data(r, 0));
+	sw_w32(w, rtl_table_data(r, 1));
+	sw_w32(x, rtl_table_data(r, 2));
+
+	rtl_table_write(r, vlan);
+	rtl_table_release(r);
+}
+
+static void rtl931x_vlan_set_untagged(u32 vlan, u64 portmask)
+{
+	struct table_reg *r = rtl_table_get(RTL9310_TBL_3, 0);
+
+	rtl839x_set_port_reg_be(portmask << 7, rtl_table_data(r, 0));
+	rtl_table_write(r, vlan);
+	rtl_table_release(r);
+}
+
+static inline int rtl931x_mac_force_mode_ctrl(int p)
+{
+	return RTL931X_MAC_FORCE_MODE_CTRL + (p << 2);
+}
+
+static inline int rtl931x_mac_link_spd_sts(int p)
+{
+	return RTL931X_MAC_LINK_SPD_STS(p);
+}
+
+static inline int rtl931x_mac_port_ctrl(int p)
+{
+	return RTL931X_MAC_PORT_CTRL(p);
+}
+
+static inline int rtl931x_l2_port_new_salrn(int p)
+{
+	return RTL931X_L2_PORT_NEW_SALRN(p);
+}
+
+static inline int rtl931x_l2_port_new_sa_fwd(int p)
+{
+	return RTL931X_L2_PORT_NEW_SA_FWD(p);
+}
+
+static u64 rtl931x_read_l2_entry_using_hash(u32 hash, u32 position, struct rtl838x_l2_entry *e)
+{
+	u64 entry = 0;
+
+	// TODO: Implement
+	return entry;
+}
+
+static u64 rtl931x_read_cam(int idx, struct rtl838x_l2_entry *e)
+{
+	u64 entry = 0;
+
+	// TODO: Implement
+	return entry;
+}
+
+irqreturn_t rtl931x_switch_irq(int irq, void *dev_id)
+{
+	struct dsa_switch *ds = dev_id;
+	u32 status = sw_r32(RTL931X_ISR_GLB_SRC);
+	u64 ports = rtl839x_get_port_reg_le(RTL931X_ISR_PORT_LINK_STS_CHG);
+	u64 link;
+	int i;
+
+	/* Clear status */
+	rtl839x_set_port_reg_le(ports, RTL931X_ISR_PORT_LINK_STS_CHG);
+	pr_info("RTL9310 Link change: status: %x, ports %llx\n", status, ports);
+
+	for (i = 0; i < 56; i++) {
+		if (ports & BIT_ULL(i)) {
+			link = rtl839x_get_port_reg_le(RTL931X_MAC_LINK_STS);
+			if (link & BIT_ULL(i))
+				dsa_port_phylink_mac_change(ds, i, true);
+			else
+				dsa_port_phylink_mac_change(ds, i, false);
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+int rtl931x_write_phy(u32 port, u32 page, u32 reg, u32 val)
+{
+	u32 v;
+	int err = 0;
+
+	val &= 0xffff;
+	if (port > 63 || page > 4095 || reg > 31)
+		return -ENOTSUPP;
+
+	mutex_lock(&smi_lock);
+	/* Clear both port registers */
+	sw_w32(0, RTL931X_SMI_INDRT_ACCESS_CTRL_2);
+	sw_w32(0, RTL931X_SMI_INDRT_ACCESS_CTRL_2 + 4);
+	sw_w32_mask(0, BIT(port), RTL931X_SMI_INDRT_ACCESS_CTRL_2+ (port % 32) * 4);
+
+	sw_w32_mask(0xffff0000, val << 16, RTL931X_SMI_INDRT_ACCESS_CTRL_3);
+
+	v = reg << 6 | page << 11 ;
+	sw_w32(v, RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+
+	sw_w32(0x1ff, RTL931X_SMI_INDRT_ACCESS_CTRL_1);
+
+	v |= 1 << 3 | 1; /* Write operation and execute */
+	sw_w32(v, RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+
+	do {
+	} while (sw_r32(RTL931X_SMI_INDRT_ACCESS_CTRL_0) & 0x1);
+
+	if (sw_r32(RTL931X_SMI_INDRT_ACCESS_CTRL_0) & 0x2)
+		err = -EIO;
+
+	mutex_unlock(&smi_lock);
+	return err;
+}
+
+int rtl931x_read_phy(u32 port, u32 page, u32 reg, u32 *val)
+{
+	u32 v;
+
+	if (port > 63 || page > 4095 || reg > 31)
+		return -ENOTSUPP;
+
+	mutex_lock(&smi_lock);
+
+	sw_w32_mask(0xffff, port, RTL931X_SMI_INDRT_ACCESS_CTRL_3);
+	v = reg << 6 | page << 11; // TODO: ACCESS Offset? Park page
+	sw_w32(v, RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+
+	sw_w32(0x1ff, RTL931X_SMI_INDRT_ACCESS_CTRL_1);
+
+	v |= 1;
+	sw_w32(v, RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+
+	do {
+	} while (sw_r32(RTL931X_SMI_INDRT_ACCESS_CTRL_0) & 0x1);
+
+	*val = (sw_r32(RTL931X_SMI_INDRT_ACCESS_CTRL_3) & 0xffff0000) >> 16;
+
+	pr_info("%s: port %d, page: %d, reg: %x, val: %x\n", __func__, port, page, reg, *val);
+
+	mutex_unlock(&smi_lock);
+	return 0;
+}
+
+/*
+ * Read an mmd register of the PHY
+ */
+int rtl931x_read_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 *val)
+{
+	int err = 0;
+	u32 v;
+	int type = 1; // TODO: For C45 PHYs need to set to 2
+
+	mutex_lock(&smi_lock);
+
+	// Set PHY to access via port-number
+	sw_w32(port << 5, RTL931X_SMI_INDRT_ACCESS_BC_PHYID_CTRL);
+
+	// Set MMD device number and register to write to
+	sw_w32(devnum << 16 | (regnum & 0xffff), RTL931X_SMI_INDRT_ACCESS_MMD_CTRL);
+
+	v = type << 2 | BIT(0); // MMD-access-type | EXEC
+	sw_w32(v, RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+
+	do {
+		v = sw_r32(RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+	} while (v & BIT(0));
+
+	// There is no error-checking via BIT 1 of v, as it does not seem to be set correctly
+
+	*val = (sw_r32(RTL931X_SMI_INDRT_ACCESS_CTRL_3) & 0xffff);
+
+	pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, *val, err);
+
+	mutex_unlock(&smi_lock);
+
+	return err;
+}
+
+/*
+ * Write to an mmd register of the PHY
+ */
+int rtl931x_write_mmd_phy(u32 port, u32 devnum, u32 regnum, u32 val)
+{
+	int err = 0;
+	u32 v;
+	int type = 1; // TODO: For C45 PHYs need to set to 2
+
+	mutex_lock(&smi_lock);
+
+	// Set PHY to access via port-number
+	sw_w32(port << 5, RTL931X_SMI_INDRT_ACCESS_BC_PHYID_CTRL);
+
+	// Set data to write
+	sw_w32_mask(0xffff << 16, val << 16, RTL931X_SMI_INDRT_ACCESS_CTRL_3);
+
+	// Set MMD device number and register to write to
+	sw_w32(devnum << 16 | (regnum & 0xffff), RTL931X_SMI_INDRT_ACCESS_MMD_CTRL);
+
+	v = BIT(4) | type << 2 | BIT(0); // WRITE | MMD-access-type | EXEC
+	sw_w32(v, RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+
+	do {
+		v = sw_r32(RTL931X_SMI_INDRT_ACCESS_CTRL_0);
+	} while (v & BIT(0));
+
+	pr_debug("%s: port %d, regnum: %x, val: %x (err %d)\n", __func__, port, regnum, val, err);
+	mutex_unlock(&smi_lock);
+	return err;
+}
+
+void rtl931x_print_matrix(void)
+{
+	volatile u64 *ptr = RTL838X_SW_BASE + RTL839X_PORT_ISO_CTRL(0);
+	int i;
+
+	for (i = 0; i < 52; i += 4)
+		pr_info("> %16llx %16llx %16llx %16llx\n",
+			ptr[i + 0], ptr[i + 1], ptr[i + 2], ptr[i + 3]);
+	pr_info("CPU_PORT> %16llx\n", ptr[52]);
+}
+
+const struct rtl838x_reg rtl931x_reg = {
+	.mask_port_reg_be = rtl839x_mask_port_reg_be,
+	.set_port_reg_be = rtl839x_set_port_reg_be,
+	.get_port_reg_be = rtl839x_get_port_reg_be,
+	.mask_port_reg_le = rtl839x_mask_port_reg_le,
+	.set_port_reg_le = rtl839x_set_port_reg_le,
+	.get_port_reg_le = rtl839x_get_port_reg_le,
+	.stat_port_rst = RTL931X_STAT_PORT_RST,
+	.stat_rst = RTL931X_STAT_RST,
+	.stat_port_std_mib = 0,  // Not defined
+	.l2_ctrl_0 = RTL931X_L2_CTRL,
+	.l2_ctrl_1 = RTL931X_L2_AGE_CTRL,
+	.l2_port_aging_out = RTL931X_L2_PORT_AGE_CTRL,
+	// .smi_poll_ctrl does not exist
+	.l2_tbl_flush_ctrl = RTL931X_L2_TBL_FLUSH_CTRL,
+	.exec_tbl0_cmd = rtl931x_exec_tbl0_cmd,
+	.exec_tbl1_cmd = rtl931x_exec_tbl1_cmd,
+	.tbl_access_data_0 = rtl931x_tbl_access_data_0,
+	.isr_glb_src = RTL931X_ISR_GLB_SRC,
+	.isr_port_link_sts_chg = RTL931X_ISR_PORT_LINK_STS_CHG,
+	.imr_port_link_sts_chg = RTL931X_IMR_PORT_LINK_STS_CHG,
+	// imr_glb does not exist on RTL931X
+	.vlan_tables_read = rtl931x_vlan_tables_read,
+	.vlan_set_tagged = rtl931x_vlan_set_tagged,
+	.vlan_set_untagged = rtl931x_vlan_set_untagged,
+	.vlan_profile_dump = rtl931x_vlan_profile_dump,
+	.stp_get = rtl931x_stp_get,
+	.stp_set = rtl931x_stp_set,
+	.mac_force_mode_ctrl = rtl931x_mac_force_mode_ctrl,
+	.mac_port_ctrl = rtl931x_mac_port_ctrl,
+	.l2_port_new_salrn = rtl931x_l2_port_new_salrn,
+	.l2_port_new_sa_fwd = rtl931x_l2_port_new_sa_fwd,
+	.mir_ctrl = RTL931X_MIR_CTRL,
+	.mir_dpm = RTL931X_MIR_DPM_CTRL,
+	.mir_spm = RTL931X_MIR_SPM_CTRL,
+	.mac_link_sts = RTL931X_MAC_LINK_STS,
+	.mac_link_dup_sts = RTL931X_MAC_LINK_DUP_STS,
+	.mac_link_spd_sts = rtl931x_mac_link_spd_sts,
+	.mac_rx_pause_sts = RTL931X_MAC_RX_PAUSE_STS,
+	.mac_tx_pause_sts = RTL931X_MAC_TX_PAUSE_STS,
+	.read_l2_entry_using_hash = rtl931x_read_l2_entry_using_hash,
+	.read_cam = rtl931x_read_cam,
+	.vlan_port_egr_filter = RTL931X_VLAN_PORT_EGR_FLTR(0),
+	.vlan_port_igr_filter = RTL931X_VLAN_PORT_IGR_FLTR(0),
+//	.vlan_port_pb = does not exist
+	.vlan_port_tag_sts_ctrl = RTL931X_VLAN_PORT_TAG_CTRL,
+	.trk_mbr_ctr = rtl931x_trk_mbr_ctr,
+};
+

target/linux/realtek/files-5.10/drivers/net/ethernet/rtl838x_eth.h

@@ -0,0 +1,429 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _RTL838X_ETH_H
+#define _RTL838X_ETH_H
+
+/*
+ * Register definition
+ */
+
+/* Per port MAC control */
+#define RTL838X_MAC_PORT_CTRL			(0xd560)
+#define RTL839X_MAC_PORT_CTRL			(0x8004)
+#define RTL930X_MAC_L2_PORT_CTRL		(0x3268)
+#define RTL930X_MAC_PORT_CTRL			(0x3260)
+#define RTL931X_MAC_L2_PORT_CTRL		(0x6000)
+#define RTL931X_MAC_PORT_CTRL			(0x6004)
+
+/* DMA interrupt control and status registers */
+#define RTL838X_DMA_IF_CTRL			(0x9f58)
+#define RTL838X_DMA_IF_INTR_STS			(0x9f54)
+#define RTL838X_DMA_IF_INTR_MSK			(0x9f50)
+
+#define RTL839X_DMA_IF_CTRL			(0x786c)
+#define RTL839X_DMA_IF_INTR_STS			(0x7868)
+#define RTL839X_DMA_IF_INTR_MSK			(0x7864)
+
+#define RTL930X_DMA_IF_CTRL			(0xe028)
+#define RTL930X_DMA_IF_INTR_RX_RUNOUT_STS	(0xe01C)
+#define RTL930X_DMA_IF_INTR_RX_DONE_STS		(0xe020)
+#define RTL930X_DMA_IF_INTR_TX_DONE_STS		(0xe024)
+#define RTL930X_DMA_IF_INTR_RX_RUNOUT_MSK	(0xe010)
+#define RTL930X_DMA_IF_INTR_RX_DONE_MSK		(0xe014)
+#define RTL930X_DMA_IF_INTR_TX_DONE_MSK		(0xe018)
+#define RTL930X_L2_NTFY_IF_INTR_MSK		(0xe04C)
+#define RTL930X_L2_NTFY_IF_INTR_STS		(0xe050)
+
+/* TODO: RTL931X_DMA_IF_CTRL has different bits meanings */
+#define RTL931X_DMA_IF_CTRL			(0x0928)
+#define RTL931X_DMA_IF_INTR_RX_RUNOUT_STS	(0x091c)
+#define RTL931X_DMA_IF_INTR_RX_DONE_STS		(0x0920)
+#define RTL931X_DMA_IF_INTR_TX_DONE_STS		(0x0924)
+#define RTL931X_DMA_IF_INTR_RX_RUNOUT_MSK	(0x0910)
+#define RTL931X_DMA_IF_INTR_RX_DONE_MSK		(0x0914)
+#define RTL931X_DMA_IF_INTR_TX_DONE_MSK		(0x0918)
+#define RTL931X_L2_NTFY_IF_INTR_MSK		(0x09E4)
+#define RTL931X_L2_NTFY_IF_INTR_STS		(0x09E8)
+
+#define RTL838X_MAC_FORCE_MODE_CTRL		(0xa104)
+#define RTL839X_MAC_FORCE_MODE_CTRL		(0x02bc)
+#define RTL930X_MAC_FORCE_MODE_CTRL		(0xCA1C)
+#define RTL931X_MAC_FORCE_MODE_CTRL		(0x0ddc)
+
+/* MAC address settings */
+#define RTL838X_MAC				(0xa9ec)
+#define RTL839X_MAC				(0x02b4)
+#define RTL838X_MAC_ALE				(0x6b04)
+#define RTL838X_MAC2				(0xa320)
+#define RTL930X_MAC_L2_ADDR_CTRL		(0xC714)
+#define RTL931X_MAC_L2_ADDR_CTRL		(0x135c)
+
+/* Ringbuffer setup */
+#define RTL838X_DMA_RX_BASE			(0x9f00)
+#define RTL839X_DMA_RX_BASE			(0x780c)
+#define RTL930X_DMA_RX_BASE			(0xdf00)
+#define RTL931X_DMA_RX_BASE			(0x0800)
+
+#define RTL838X_DMA_TX_BASE			(0x9f40)
+#define RTL839X_DMA_TX_BASE			(0x784c)
+#define RTL930X_DMA_TX_BASE			(0xe000)
+#define RTL931X_DMA_TX_BASE			(0x0900)
+
+#define RTL838X_DMA_IF_RX_RING_SIZE		(0xB7E4)
+#define RTL839X_DMA_IF_RX_RING_SIZE		(0x6038)
+#define RTL930X_DMA_IF_RX_RING_SIZE		(0x7C60)
+#define RTL931X_DMA_IF_RX_RING_SIZE		(0x2080)
+
+#define RTL838X_DMA_IF_RX_RING_CNTR		(0xB7E8)
+#define RTL839X_DMA_IF_RX_RING_CNTR		(0x603c)
+#define RTL930X_DMA_IF_RX_RING_CNTR		(0x7C8C)
+#define RTL931X_DMA_IF_RX_RING_CNTR		(0x20AC)
+
+#define RTL838X_DMA_IF_RX_CUR			(0x9F20)
+#define RTL839X_DMA_IF_RX_CUR			(0x782c)
+#define RTL930X_DMA_IF_RX_CUR			(0xdf80)
+#define RTL931X_DMA_IF_RX_CUR			(0x0880)
+
+#define RTL838X_DMA_IF_TX_CUR_DESC_ADDR_CTRL	(0x9F48)
+#define RTL930X_DMA_IF_TX_CUR_DESC_ADDR_CTRL	(0xE008)
+
+#define RTL838X_DMY_REG31			(0x3b28)
+#define RTL838X_SDS_MODE_SEL			(0x0028)
+#define RTL838X_SDS_CFG_REG			(0x0034)
+#define RTL838X_INT_MODE_CTRL			(0x005c)
+#define RTL838X_CHIP_INFO			(0x00d8)
+#define RTL838X_SDS4_REG28			(0xef80)
+#define RTL838X_SDS4_DUMMY0			(0xef8c)
+#define RTL838X_SDS5_EXT_REG6			(0xf18c)
+
+/* L2 features */
+#define RTL839X_TBL_ACCESS_L2_CTRL		(0x1180)
+#define RTL839X_TBL_ACCESS_L2_DATA(idx)		(0x1184 + ((idx) << 2))
+#define RTL838X_TBL_ACCESS_CTRL_0		(0x6914)
+#define RTL838X_TBL_ACCESS_DATA_0(idx)		(0x6918 + ((idx) << 2))
+
+/* MAC-side link state handling */
+#define RTL838X_MAC_LINK_STS			(0xa188)
+#define RTL839X_MAC_LINK_STS			(0x0390)
+#define RTL930X_MAC_LINK_STS			(0xCB10)
+#define RTL931X_MAC_LINK_STS			(0x0ec0)
+
+#define RTL838X_MAC_LINK_SPD_STS		(0xa190)
+#define RTL839X_MAC_LINK_SPD_STS		(0x03a0)
+#define RTL930X_MAC_LINK_SPD_STS		(0xCB18)
+#define RTL931X_MAC_LINK_SPD_STS		(0x0ed0)
+
+#define RTL838X_MAC_LINK_DUP_STS		(0xa19c)
+#define RTL839X_MAC_LINK_DUP_STS		(0x03b0)
+#define RTL930X_MAC_LINK_DUP_STS		(0xCB28)
+#define RTL931X_MAC_LINK_DUP_STS		(0x0ef0)
+
+// TODO: RTL8390_MAC_LINK_MEDIA_STS_ADDR ???
+
+#define RTL838X_MAC_TX_PAUSE_STS		(0xa1a0)
+#define RTL839X_MAC_TX_PAUSE_STS		(0x03b8)
+#define RTL930X_MAC_TX_PAUSE_STS		(0xCB2C)
+#define RTL931X_MAC_TX_PAUSE_STS		(0x0ef8)
+
+#define RTL838X_MAC_RX_PAUSE_STS		(0xa1a4)
+#define RTL839X_MAC_RX_PAUSE_STS		(0xCB30)
+#define RTL930X_MAC_RX_PAUSE_STS		(0xC2F8)
+#define RTL931X_MAC_RX_PAUSE_STS		(0x0f00)
+
+#define RTL838X_EEE_TX_TIMER_GIGA_CTRL		(0xaa04)
+#define RTL838X_EEE_TX_TIMER_GELITE_CTRL	(0xaa08)
+
+#define RTL930X_L2_UNKN_UC_FLD_PMSK		(0x9064)
+
+#define RTL839X_MAC_GLB_CTRL			(0x02a8)
+#define RTL839X_SCHED_LB_TICK_TKN_CTRL		(0x60f8)
+
+#define RTL838X_L2_TBL_FLUSH_CTRL		(0x3370)
+#define RTL839X_L2_TBL_FLUSH_CTRL		(0x3ba0)
+#define RTL930X_L2_TBL_FLUSH_CTRL		(0x9404)
+#define RTL931X_L2_TBL_FLUSH_CTRL		(0xCD9C)
+
+#define RTL930X_L2_PORT_SABLK_CTRL		(0x905c)
+#define RTL930X_L2_PORT_DABLK_CTRL		(0x9060)
+
+/* MAC link state bits */
+#define FORCE_EN				(1 << 0)
+#define FORCE_LINK_EN				(1 << 1)
+#define NWAY_EN					(1 << 2)
+#define DUPLX_MODE				(1 << 3)
+#define TX_PAUSE_EN				(1 << 6)
+#define RX_PAUSE_EN				(1 << 7)
+
+/* L2 Notification DMA interface */
+#define RTL839X_DMA_IF_NBUF_BASE_DESC_ADDR_CTRL	(0x785C)
+#define RTL839X_L2_NOTIFICATION_CTRL		(0x7808)
+#define RTL931X_L2_NTFY_RING_BASE_ADDR		(0x09DC)
+#define RTL931X_L2_NTFY_RING_CUR_ADDR		(0x09E0)
+#define RTL839X_L2_NOTIFICATION_CTRL		(0x7808)
+#define RTL931X_L2_NTFY_CTRL			(0xCDC8)
+#define RTL838X_L2_CTRL_0			(0x3200)
+#define RTL839X_L2_CTRL_0			(0x3800)
+#define RTL930X_L2_CTRL				(0x8FD8)
+#define RTL931X_L2_CTRL				(0xC800)
+
+/* TRAPPING to CPU-PORT */
+#define RTL838X_SPCL_TRAP_IGMP_CTRL		(0x6984)
+#define RTL838X_RMA_CTRL_0			(0x4300)
+#define RTL838X_RMA_CTRL_1			(0x4304)
+#define RTL839X_RMA_CTRL_0			(0x1200)
+
+#define RTL839X_SPCL_TRAP_IGMP_CTRL		(0x1058)
+#define RTL839X_RMA_CTRL_1			(0x1204)
+#define RTL839X_RMA_CTRL_2			(0x1208)
+#define RTL839X_RMA_CTRL_3			(0x120C)
+
+#define RTL930X_VLAN_APP_PKT_CTRL		(0xA23C)
+#define RTL930X_RMA_CTRL_0			(0x9E60)
+#define RTL930X_RMA_CTRL_1			(0x9E64)
+#define RTL930X_RMA_CTRL_2			(0x9E68)
+
+#define RTL931X_RMA_CTRL_0			(0x8800)
+#define RTL931X_RMA_CTRL_1			(0x8804)
+#define RTL931X_RMA_CTRL_2			(0x8808)
+
+/* Advanced SMI control for clause 45 PHYs */
+#define RTL930X_SMI_MAC_TYPE_CTRL		(0xCA04)
+#define RTL930X_SMI_PORT24_27_ADDR_CTRL		(0xCB90)
+#define RTL930X_SMI_PORT0_15_POLLING_SEL	(0xCA08)
+#define RTL930X_SMI_PORT16_27_POLLING_SEL	(0xCA0C)
+
+/* Registers of the internal Serdes of the 8390 */
+#define RTL839X_SDS12_13_XSG0			(0xB800)
+
+/* Registers of the internal Serdes of the 8380 */
+#define RTL838X_SDS4_FIB_REG0			(0xF800)
+
+inline int rtl838x_mac_port_ctrl(int p)
+{
+	return RTL838X_MAC_PORT_CTRL + (p << 7);
+}
+
+inline int rtl839x_mac_port_ctrl(int p)
+{
+	return RTL839X_MAC_PORT_CTRL + (p << 7);
+}
+
+/* On the RTL931XX, the functionality of the MAC port control register is split up
+ * into RTL931X_MAC_L2_PORT_CTRL and RTL931X_MAC_PORT_CTRL the functionality used
+ * by the Ethernet driver is in the same bits now in RTL931X_MAC_L2_PORT_CTRL
+ */
+
+inline int rtl930x_mac_port_ctrl(int p)
+{
+	return RTL930X_MAC_L2_PORT_CTRL + (p << 6);
+}
+
+inline int rtl931x_mac_port_ctrl(int p)
+{
+	return RTL931X_MAC_L2_PORT_CTRL + (p << 7);
+}
+
+inline int rtl838x_dma_if_rx_ring_size(int i)
+{
+	return RTL838X_DMA_IF_RX_RING_SIZE + ((i >> 3) << 2);
+}
+
+inline int rtl839x_dma_if_rx_ring_size(int i)
+{
+	return RTL839X_DMA_IF_RX_RING_SIZE + ((i >> 3) << 2);
+}
+
+inline int rtl930x_dma_if_rx_ring_size(int i)
+{
+	return RTL930X_DMA_IF_RX_RING_SIZE + ((i / 3) << 2);
+}
+
+inline int rtl931x_dma_if_rx_ring_size(int i)
+{
+	return RTL931X_DMA_IF_RX_RING_SIZE + ((i / 3) << 2);
+}
+
+inline int rtl838x_dma_if_rx_ring_cntr(int i)
+{
+	return RTL838X_DMA_IF_RX_RING_CNTR + ((i >> 3) << 2);
+}
+
+inline int rtl839x_dma_if_rx_ring_cntr(int i)
+{
+	return RTL839X_DMA_IF_RX_RING_CNTR + ((i >> 3) << 2);
+}
+
+inline int rtl930x_dma_if_rx_ring_cntr(int i)
+{
+	return RTL930X_DMA_IF_RX_RING_CNTR + ((i / 3) << 2);
+}
+
+inline int rtl931x_dma_if_rx_ring_cntr(int i)
+{
+	return RTL931X_DMA_IF_RX_RING_CNTR + ((i / 3) << 2);
+}
+
+inline u32 rtl838x_get_mac_link_sts(int port)
+{
+	return (sw_r32(RTL838X_MAC_LINK_STS) & BIT(port));
+}
+
+inline u32 rtl839x_get_mac_link_sts(int p)
+{
+	return (sw_r32(RTL839X_MAC_LINK_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+inline u32 rtl930x_get_mac_link_sts(int port)
+{
+	return (sw_r32(RTL930X_MAC_LINK_STS) & BIT(port));
+}
+
+inline u32 rtl931x_get_mac_link_sts(int p)
+{
+	return (sw_r32(RTL931X_MAC_LINK_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+inline u32 rtl838x_get_mac_link_dup_sts(int port)
+{
+	return (sw_r32(RTL838X_MAC_LINK_DUP_STS) & BIT(port));
+}
+
+inline u32 rtl839x_get_mac_link_dup_sts(int p)
+{
+	return (sw_r32(RTL839X_MAC_LINK_DUP_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+inline u32 rtl930x_get_mac_link_dup_sts(int port)
+{
+	return (sw_r32(RTL930X_MAC_LINK_DUP_STS) & BIT(port));
+}
+
+inline u32 rtl931x_get_mac_link_dup_sts(int p)
+{
+	return (sw_r32(RTL931X_MAC_LINK_DUP_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+inline u32 rtl838x_get_mac_link_spd_sts(int port)
+{
+	int r = RTL838X_MAC_LINK_SPD_STS + ((port >> 4) << 2);
+	u32 speed = sw_r32(r);
+
+	speed >>= (port % 16) << 1;
+	return (speed & 0x3);
+}
+
+inline u32 rtl839x_get_mac_link_spd_sts(int port)
+{
+	int r = RTL839X_MAC_LINK_SPD_STS + ((port >> 4) << 2);
+	u32 speed = sw_r32(r);
+
+	speed >>= (port % 16) << 1;
+	return (speed & 0x3);
+}
+
+
+inline u32 rtl930x_get_mac_link_spd_sts(int port)
+{
+	int r = RTL930X_MAC_LINK_SPD_STS + ((port / 10) << 2);
+	u32 speed = sw_r32(r);
+
+	speed >>= (port % 10) * 3;
+	return (speed & 0x7);
+}
+
+inline u32 rtl931x_get_mac_link_spd_sts(int port)
+{
+	int r = RTL931X_MAC_LINK_SPD_STS + ((port >> 3) << 2);
+	u32 speed = sw_r32(r);
+
+	speed >>= (port % 8) << 2;
+	return (speed & 0xf);
+}
+
+inline u32 rtl838x_get_mac_rx_pause_sts(int port)
+{
+	return (sw_r32(RTL838X_MAC_RX_PAUSE_STS) & (1 << port));
+}
+
+inline u32 rtl839x_get_mac_rx_pause_sts(int p)
+{
+	return (sw_r32(RTL839X_MAC_RX_PAUSE_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+inline u32 rtl930x_get_mac_rx_pause_sts(int port)
+{
+	return (sw_r32(RTL930X_MAC_RX_PAUSE_STS) & (1 << port));
+}
+
+inline u32 rtl931x_get_mac_rx_pause_sts(int p)
+{
+	return (sw_r32(RTL931X_MAC_RX_PAUSE_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+inline u32 rtl838x_get_mac_tx_pause_sts(int port)
+{
+	return (sw_r32(RTL838X_MAC_TX_PAUSE_STS) & (1 << port));
+}
+
+inline u32 rtl839x_get_mac_tx_pause_sts(int p)
+{
+	return (sw_r32(RTL839X_MAC_TX_PAUSE_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+inline u32 rtl930x_get_mac_tx_pause_sts(int port)
+{
+	return (sw_r32(RTL930X_MAC_TX_PAUSE_STS) & (1 << port));
+}
+
+inline u32 rtl931x_get_mac_tx_pause_sts(int p)
+{
+	return (sw_r32(RTL931X_MAC_TX_PAUSE_STS + ((p >> 5) << 2)) & BIT(p % 32));
+}
+
+struct p_hdr;
+struct dsa_tag;
+
+struct rtl838x_reg {
+	irqreturn_t (*net_irq)(int irq, void *dev_id);
+	int (*mac_port_ctrl)(int port);
+	int dma_if_intr_sts;
+	int dma_if_intr_msk;
+	int dma_if_intr_rx_runout_sts;
+	int dma_if_intr_rx_done_sts;
+	int dma_if_intr_tx_done_sts;
+	int dma_if_intr_rx_runout_msk;
+	int dma_if_intr_rx_done_msk;
+	int dma_if_intr_tx_done_msk;
+	int l2_ntfy_if_intr_sts;
+	int l2_ntfy_if_intr_msk;
+	int dma_if_ctrl;
+	int mac_force_mode_ctrl;
+	int dma_rx_base;
+	int dma_tx_base;
+	int (*dma_if_rx_ring_size)(int ring);
+	int (*dma_if_rx_ring_cntr)(int ring);
+	int dma_if_rx_cur;
+	int rst_glb_ctrl;
+	u32 (*get_mac_link_sts)(int port);
+	u32 (*get_mac_link_dup_sts)(int port);
+	u32 (*get_mac_link_spd_sts)(int port);
+	u32 (*get_mac_rx_pause_sts)(int port);
+	u32 (*get_mac_tx_pause_sts)(int port);
+	int mac;
+	int l2_tbl_flush_ctrl;
+	void (*update_cntr)(int r, int work_done);
+	void (*create_tx_header)(struct p_hdr *h, int dest_port, int prio);
+	bool (*decode_tag)(struct p_hdr *h, struct dsa_tag *tag);
+};
+
+int rtl838x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+int rtl838x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int rtl839x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+int rtl839x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int rtl930x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+int rtl930x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+int rtl931x_write_phy(u32 port, u32 page, u32 reg, u32 val);
+int rtl931x_read_phy(u32 port, u32 page, u32 reg, u32 *val);
+void rtl9300_sds_power(int sds_num, int val);
+
+#endif /* _RTL838X_ETH_H */

target/linux/realtek/files-5.10/drivers/net/phy/rtl83xx-phy.h

@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+// TODO: not really used
+struct rtl838x_phy_priv {
+	char *name;
+};
+
+struct __attribute__ ((__packed__)) part {
+	uint16_t start;
+	uint8_t wordsize;
+	uint8_t words;
+};
+
+struct __attribute__ ((__packed__)) fw_header {
+	uint32_t magic;
+	uint32_t phy;
+	uint32_t checksum;
+	uint32_t version;
+	struct part parts[10];
+};
+
+// TODO: fixed path?
+#define FIRMWARE_838X_8380_1	"rtl838x_phy/rtl838x_8380.fw"
+#define FIRMWARE_838X_8214FC_1	"rtl838x_phy/rtl838x_8214fc.fw"
+#define FIRMWARE_838X_8218b_1	"rtl838x_phy/rtl838x_8218b.fw"
+
+/* External RTL8218B and RTL8214FC IDs are identical */
+#define PHY_ID_RTL8214C		0x001cc942
+#define PHY_ID_RTL8214FC	0x001cc981
+#define PHY_ID_RTL8218B_E	0x001cc981
+#define PHY_ID_RTL8218D		0x001cc983
+#define PHY_ID_RTL8218B_I	0x001cca40
+#define PHY_ID_RTL8226		0x001cc838
+#define PHY_ID_RTL8390_GENERIC	0x001ccab0
+#define PHY_ID_RTL8393_I	0x001c8393
+#define PHY_ID_RTL9300_I	0x70d03106
+
+// PHY MMD devices
+#define MMD_AN		7
+#define MMD_VEND2	31
+
+/* Registers of the internal Serdes of the 8380 */
+#define RTL838X_SDS_MODE_SEL			(0x0028)
+#define RTL838X_SDS_CFG_REG			(0x0034)
+#define RTL838X_INT_MODE_CTRL			(0x005c)
+#define RTL838X_DMY_REG31			(0x3b28)
+
+#define RTL8380_SDS4_FIB_REG0			(0xF800)
+#define RTL838X_SDS4_REG28			(0xef80)
+#define RTL838X_SDS4_DUMMY0			(0xef8c)
+#define RTL838X_SDS5_EXT_REG6			(0xf18c)
+#define RTL838X_SDS4_FIB_REG0			(RTL838X_SDS4_REG28 + 0x880)
+#define RTL838X_SDS5_FIB_REG0			(RTL838X_SDS4_REG28 + 0x980)
+
+/* Registers of the internal SerDes of the RTL8390 */
+#define RTL839X_SDS12_13_XSG0			(0xB800)
+
+/* Registers of the internal Serdes of the 9300 */
+#define RTL930X_SDS_INDACS_CMD			(0x03B0)
+#define RTL930X_SDS_INDACS_DATA			(0x03B4)

target/linux/realtek/patches-5.10/300-mips-add-rtl838x-platform.patch

@@ -0,0 +1,39 @@
+--- a/arch/mips/Kbuild.platforms
++++ b/arch/mips/Kbuild.platforms
+@@ -27,6 +27,7 @@ platforms += pistachio
+ platforms += pmcs-msp71xx
+ platforms += pnx833x
+ platforms += ralink
++platforms += rtl838x
+ platforms += rb532
+ platforms += sgi-ip22
+ platforms += sgi-ip27
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -631,6 +631,26 @@ config RALINK
+ 	select ARCH_HAS_RESET_CONTROLLER
+ 	select RESET_CONTROLLER
+ 
++config RTL838X
++	bool "Realtek based platforms"
++	select DMA_NONCOHERENT
++	select IRQ_MIPS_CPU
++	select CSRC_R4K
++	select CEVT_R4K
++	select SYS_HAS_CPU_MIPS32_R1
++	select SYS_HAS_CPU_MIPS32_R2
++	select SYS_SUPPORTS_BIG_ENDIAN
++	select SYS_SUPPORTS_32BIT_KERNEL
++	select SYS_SUPPORTS_MIPS16
++	select SYS_HAS_EARLY_PRINTK
++	select SYS_HAS_EARLY_PRINTK_8250
++	select USE_GENERIC_EARLY_PRINTK_8250
++	select BOOT_RAW
++	select PINCTRL
++	select ARCH_HAS_RESET_CONTROLLER
++	select RESET_CONTROLLER
++	select USE_OF
++
+ config SGI_IP22
+ 	bool "SGI IP22 (Indy/Indigo2)"
+ 	select FW_ARC

target/linux/realtek/patches-5.10/301-gpio-add-rtl838x-driver.patch

@@ -0,0 +1,32 @@
+--- a/drivers/gpio/Kconfig
++++ b/drivers/gpio/Kconfig
+@@ -441,6 +441,18 @@ config GPIO_REG
+ 	  A 32-bit single register GPIO fixed in/out implementation.  This
+ 	  can be used to represent any register as a set of GPIO signals.
+ 
++config GPIO_RTL8231
++	tristate "RTL8231 GPIO"
++	depends on GPIO_RTL838X
++	help
++	  Say yes here to support Realtek RTL8231 GPIO expansion chips.
++
++config GPIO_RTL838X
++	tristate "RTL838X GPIO"
++	depends on RTL838X
++	help
++	  Say yes here to support RTL838X GPIO devices.
++
+ config GPIO_SAMA5D2_PIOBU
+ 	tristate "SAMA5D2 PIOBU GPIO support"
+ 	depends on MFD_SYSCON
+--- a/drivers/gpio/Makefile
++++ b/drivers/gpio/Makefile
+@@ -117,6 +117,8 @@ obj-$(CONFIG_GPIO_RC5T583)		+= gpio-rc5t
+ obj-$(CONFIG_GPIO_RCAR)			+= gpio-rcar.o
+ obj-$(CONFIG_GPIO_RDC321X)		+= gpio-rdc321x.o
+ obj-$(CONFIG_GPIO_REG)			+= gpio-reg.o
++obj-$(CONFIG_GPIO_RTL8231)		+= gpio-rtl8231.o
++obj-$(CONFIG_GPIO_RTL838X)		+= gpio-rtl838x.o
+ obj-$(CONFIG_ARCH_SA1100)		+= gpio-sa1100.o
+ obj-$(CONFIG_GPIO_SAMA5D2_PIOBU)	+= gpio-sama5d2-piobu.o
+ obj-$(CONFIG_GPIO_SCH311X)		+= gpio-sch311x.o

target/linux/realtek/patches-5.10/302-clocksource-add-rtl9300-driver.patch

@@ -0,0 +1,34 @@
+--- a/drivers/clocksource/Kconfig
++++ b/drivers/clocksource/Kconfig
+@@ -127,6 +127,15 @@ config RDA_TIMER
+ 	help
+ 	  Enables the support for the RDA Micro timer driver.
+ 
++config RTL9300_TIMER
++	bool "Clocksource/timer for the Realtek RTL9300 family of SoCs"
++	depends on MIPS
++	select COMMON_CLK
++	select TIMER_OF
++	select CLKSRC_MMIO
++	help
++	  Enables support for the Realtek RTL9300 timer driver.
++
+ config SUN4I_TIMER
+ 	bool "Sun4i timer driver" if COMPILE_TEST
+ 	depends on HAS_IOMEM
+@@ -696,5 +705,4 @@ config INGENIC_TIMER
+ 	select IRQ_DOMAIN
+ 	help
+ 	  Support for the timer/counter unit of the Ingenic JZ SoCs.
+-
+ endmenu
+--- a/drivers/clocksource/Makefile
++++ b/drivers/clocksource/Makefile
+@@ -61,6 +61,7 @@ obj-$(CONFIG_MILBEAUT_TIMER)	+= timer-mi
+ obj-$(CONFIG_SPRD_TIMER)	+= timer-sprd.o
+ obj-$(CONFIG_NPCM7XX_TIMER)	+= timer-npcm7xx.o
+ obj-$(CONFIG_RDA_TIMER)		+= timer-rda.o
++obj-$(CONFIG_RTL9300_TIMER)	+= timer-rtl9300.o
+ 
+ obj-$(CONFIG_ARC_TIMERS)		+= arc_timer.o
+ obj-$(CONFIG_ARM_ARCH_TIMER)		+= arm_arch_timer.o

target/linux/realtek/patches-5.10/400-mtd-add-rtl838x-spi-flash-driver.patch

@@ -0,0 +1,23 @@
+--- a/drivers/mtd/spi-nor/Kconfig
++++ b/drivers/mtd/spi-nor/Kconfig
+@@ -118,4 +118,13 @@ config SPI_INTEL_SPI_PLATFORM
+ 	  To compile this driver as a module, choose M here: the module
+ 	  will be called intel-spi-platform.
+ 
++config SPI_RTL838X
++	tristate "Realtek RTl838X SPI flash platform driver"
++	depends on RTL838X
++	help
++	  This driver provides support for accessing SPI flash
++	  in the RTL838X SoC.
++
++	  Say N here unless you know what you are doing.
++
+ endif # MTD_SPI_NOR
+--- a/drivers/mtd/spi-nor/Makefile
++++ b/drivers/mtd/spi-nor/Makefile
+@@ -8,3 +8,4 @@ obj-$(CONFIG_SPI_NXP_SPIFI)	+= nxp-spifi
+ obj-$(CONFIG_SPI_INTEL_SPI)	+= intel-spi.o
+ obj-$(CONFIG_SPI_INTEL_SPI_PCI)	+= intel-spi-pci.o
+ obj-$(CONFIG_SPI_INTEL_SPI_PLATFORM)	+= intel-spi-platform.o
++obj-$(CONFIG_SPI_RTL838X)	+= rtl838x-nor.o

target/linux/realtek/patches-5.10/700-net-dsa-add-support-for-rtl838x-switch.patch

@@ -0,0 +1,18 @@
+--- a/drivers/net/dsa/Kconfig
++++ b/drivers/net/dsa/Kconfig
+@@ -63,6 +63,8 @@ config NET_DSA_QCA8K
+ 	  This enables support for the Qualcomm Atheros QCA8K Ethernet
+ 	  switch chips.
+ 
++source "drivers/net/dsa/rtl83xx/Kconfig"
++
+ config NET_DSA_REALTEK_SMI
+ 	tristate "Realtek SMI Ethernet switch family support"
+ 	depends on NET_DSA
+--- a/drivers/net/dsa/Makefile
++++ b/drivers/net/dsa/Makefile
+@@ -21,3 +21,4 @@ obj-y				+= b53/
+ obj-y				+= microchip/
+ obj-y				+= mv88e6xxx/
+ obj-y				+= sja1105/
++obj-y				+= rtl83xx/

target/linux/realtek/patches-5.10/701-net-dsa-add-rtl838x-support-for-tag-trailer.patch

@@ -0,0 +1,40 @@
+--- a/net/dsa/tag_trailer.c
++++ b/net/dsa/tag_trailer.c
+@@ -44,7 +44,12 @@ static struct sk_buff *trailer_xmit(stru
+ 
+ 	trailer = skb_put(nskb, 4);
+ 	trailer[0] = 0x80;
++
++#ifdef CONFIG_NET_DSA_RTL83XX
++	trailer[1] = dp->index;
++#else
+ 	trailer[1] = 1 << dp->index;
++#endif /* CONFIG_NET_DSA_RTL838X */
+ 	trailer[2] = 0x10;
+ 	trailer[3] = 0x00;
+ 
+@@ -61,12 +66,23 @@ static struct sk_buff *trailer_rcv(struc
+ 		return NULL;
+ 
+ 	trailer = skb_tail_pointer(skb) - 4;
++
++#ifdef CONFIG_NET_DSA_RTL83XX
++	if (trailer[0] != 0x80 || (trailer[1] & 0x80) != 0x00 ||
++	    (trailer[2] & 0xef) != 0x00 || trailer[3] != 0x00)
++		return NULL;
++
++	if (trailer[1] & 0x40)
++		skb->offload_fwd_mark = 1;
++
++	source_port = trailer[1] & 0x3f;
++#else
+ 	if (trailer[0] != 0x80 || (trailer[1] & 0xf8) != 0x00 ||
+ 	    (trailer[2] & 0xef) != 0x00 || trailer[3] != 0x00)
+ 		return NULL;
+ 
+ 	source_port = trailer[1] & 7;
+-
++#endif
+ 	skb->dev = dsa_master_find_slave(dev, 0, source_port);
+ 	if (!skb->dev)
+ 		return NULL;

target/linux/realtek/patches-5.10/702-net-dsa-increase-dsa-max-ports-for-rtl838x.patch

@@ -0,0 +1,11 @@
+--- a/include/linux/platform_data/dsa.h
++++ b/include/linux/platform_data/dsa.h
+@@ -6,7 +6,7 @@ struct device;
+ struct net_device;
+ 
+ #define DSA_MAX_SWITCHES	4
+-#define DSA_MAX_PORTS		12
++#define DSA_MAX_PORTS		54
+ #define DSA_RTABLE_NONE		-1
+ 
+ struct dsa_chip_data {

target/linux/realtek/patches-5.10/702-net-ethernet-add-support-for-rtl838x-ethernet.patch

@@ -0,0 +1,26 @@
+--- a/drivers/net/ethernet/Kconfig
++++ b/drivers/net/ethernet/Kconfig
+@@ -163,6 +163,13 @@ source "drivers/net/ethernet/rdc/Kconfig
+ source "drivers/net/ethernet/realtek/Kconfig"
+ source "drivers/net/ethernet/renesas/Kconfig"
+ source "drivers/net/ethernet/rocker/Kconfig"
++
++config NET_RTL838X
++	tristate "Realtek rtl838x Ethernet MAC support"
++	depends on RTL838X
++	---help---
++	  Say Y here if you want to use the Realtek rtl838x Gbps Ethernet MAC.
++
+ source "drivers/net/ethernet/samsung/Kconfig"
+ source "drivers/net/ethernet/seeq/Kconfig"
+ source "drivers/net/ethernet/sfc/Kconfig"
+--- a/drivers/net/ethernet/Makefile
++++ b/drivers/net/ethernet/Makefile
+@@ -76,6 +76,7 @@ obj-$(CONFIG_NET_VENDOR_REALTEK) += real
+ obj-$(CONFIG_NET_VENDOR_RENESAS) += renesas/
+ obj-$(CONFIG_NET_VENDOR_RDC) += rdc/
+ obj-$(CONFIG_NET_VENDOR_ROCKER) += rocker/
++obj-$(CONFIG_NET_RTL838X) += rtl838x_eth.o
+ obj-$(CONFIG_NET_VENDOR_SAMSUNG) += samsung/
+ obj-$(CONFIG_NET_VENDOR_SEEQ) += seeq/
+ obj-$(CONFIG_NET_VENDOR_SILAN) += silan/

target/linux/realtek/patches-5.10/703-include-linux-add-phy-ops-for-rtl838x.patch

@@ -0,0 +1,13 @@
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -645,6 +645,10 @@ struct phy_driver {
+ 			    struct ethtool_tunable *tuna,
+ 			    const void *data);
+ 	int (*set_loopback)(struct phy_device *dev, bool enable);
++	int (*get_port)(struct phy_device *dev);
++	int (*set_port)(struct phy_device *dev, int port);
++	int (*get_eee)(struct phy_device *dev, struct ethtool_eee *e);
++	int (*set_eee)(struct phy_device *dev, struct ethtool_eee *e);
+ };
+ #define to_phy_driver(d) container_of(to_mdio_common_driver(d),		\
+ 				      struct phy_driver, mdiodrv)

target/linux/realtek/patches-5.10/704-drivers-net-phy-eee-support-for-rtl838x.patch

@@ -0,0 +1,41 @@
+--- a/drivers/net/phy/phylink.c
++++ b/drivers/net/phy/phylink.c
+@@ -1242,6 +1242,11 @@ int phylink_ethtool_ksettings_set(struct
+ 
+ 	/* If we have a PHY, configure the phy */
+ 	if (pl->phydev) {
++		if (pl->phydev->drv->get_port && pl->phydev->drv->set_port) {
++			if(pl->phydev->drv->get_port(pl->phydev) != kset->base.port) {
++				pl->phydev->drv->set_port(pl->phydev, kset->base.port);
++			}
++		}
+ 		ret = phy_ethtool_ksettings_set(pl->phydev, &our_kset);
+ 		if (ret)
+ 			return ret;
+@@ -1420,8 +1425,11 @@ int phylink_ethtool_get_eee(struct phyli
+ 
+ 	ASSERT_RTNL();
+ 
+-	if (pl->phydev)
++	if (pl->phydev) {
++		if (pl->phydev->drv->get_eee)
++			return pl->phydev->drv->get_eee(pl->phydev, eee);
+ 		ret = phy_ethtool_get_eee(pl->phydev, eee);
++	}
+ 
+ 	return ret;
+ }
+@@ -1438,9 +1446,11 @@ int phylink_ethtool_set_eee(struct phyli
+ 
+ 	ASSERT_RTNL();
+ 
+-	if (pl->phydev)
++	if (pl->phydev) {
++		if (pl->phydev->drv->set_eee)
++			return pl->phydev->drv->set_eee(pl->phydev, eee);
+ 		ret = phy_ethtool_set_eee(pl->phydev, eee);
+-
++	}
+ 	return ret;
+ }
+ EXPORT_SYMBOL_GPL(phylink_ethtool_set_eee);

target/linux/realtek/patches-5.10/705-add-rtl-phy.patch

@@ -0,0 +1,25 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -540,6 +540,12 @@ config REALTEK_PHY
+ 	---help---
+ 	  Supports the Realtek 821x PHY.
+ 
++config REALTEK_SOC_PHY
++	tristate "Realtek SoC PHYs"
++	depends on RTL838X
++	---help---
++	  Supports the PHYs found in combination with Realtek Switch SoCs
++
+ config RENESAS_PHY
+ 	tristate "Driver for Renesas PHYs"
+ 	---help---
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -102,6 +102,7 @@ obj-$(CONFIG_NATIONAL_PHY)	+= national.o
+ obj-$(CONFIG_NXP_TJA11XX_PHY)	+= nxp-tja11xx.o
+ obj-$(CONFIG_QSEMI_PHY)		+= qsemi.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
++obj-$(CONFIG_REALTEK_SOC_PHY)   += rtl83xx-phy.o
+ obj-$(CONFIG_RENESAS_PHY)	+= uPD60620.o
+ obj-$(CONFIG_ROCKCHIP_PHY)	+= rockchip.o
+ obj-$(CONFIG_SMSC_PHY)		+= smsc.o

target/linux/realtek/patches-5.10/705-include-linux-phy-increase-phy-address-number-for-rtl839x.patch

@@ -0,0 +1,11 @@
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -188,7 +188,7 @@ static inline const char *phy_modes(phy_
+ #define PHY_INIT_TIMEOUT	100000
+ #define PHY_FORCE_TIMEOUT	10
+ 
+-#define PHY_MAX_ADDR	32
++#define PHY_MAX_ADDR	64
+ 
+ /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
+ #define PHY_ID_FMT "%s:%02x"