armv8: fsl-layerscape: Add support of QorIQ LS1012A SoC

The QorIQ LS1012A processor, optimized for battery-backed or
USB-powered, integrates a single ARM Cortex-A53 core with a hardware
packet forwarding engine and high-speed interfaces to deliver
line-rate networking performance.

This patch add support of LS1012A SoC along with
 - Update platform & DDR clock read logic as per SVR
 - Define MMDC controller register set.
 - Update LUT base address for PCIe
 - Avoid L3 platform cache compilation
 - Update USB address, errata
 - SerDes table
 - Added CSU IDs for SDHC2, SAI-1 to SAI-4

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Makarand Pawagi <makarand.pawagi@mindspeed.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/arm/cpu/armv8/fsl-layerscape/Makefile

@@ -28,3 +28,7 @@ endif
 ifneq ($(CONFIG_LS1043A),)
 obj-$(CONFIG_SYS_HAS_SERDES) += ls1043a_serdes.o
 endif
+
+ifneq ($(CONFIG_LS1012A),)
+obj-$(CONFIG_SYS_HAS_SERDES) += ls1012a_serdes.o
+endif

arch/arm/cpu/armv8/fsl-layerscape/doc/README.soc

@@ -2,6 +2,7 @@ SoC overview
 
 	1. LS1043A
 	2. LS2080A
+	3. LS1012A
 
 LS1043A
 ---------
@@ -84,3 +85,45 @@ The LS2080A SoC includes the following function and features:
  - QorIQ platform's trust architecture 3.0
  - Service processor (SP) provides pre-boot initialization and secure-boot
   capabilities
+
+LS1012A
+--------
+The LS1012A features an advanced 64-bit ARM v8 Cortex-
+A53 processor, with 32 KB of parity protected L1-I cache,
+32 KB of ECC protected L1-D cache, as well as 256 KB of
+ECC protected L2 cache.
+
+The LS1012A SoC includes the following function and features:
+ - One 64-bit ARM v8 Cortex-A53 core with the following capabilities:
+ - ARM v8 cryptography extensions
+ - One 16-bit DDR3L SDRAM memory controller, Up to 1.0 GT/s, Supports
+    16-/8-bit operation (no ECC support)
+ - ARM core-link CCI-400 cache coherent interconnect
+ - Packet Forwarding Engine (PFE)
+ - Cryptography acceleration (SEC)
+ - Ethernet interfaces supported by PFE:
+ - One Configurable x3 SerDes:
+    Two Serdes PLLs supported for usage by any SerDes data lane
+    Support for up to 6 GBaud operation
+ - High-speed peripheral interfaces:
+     - One PCI Express Gen2 controller, supporting x1 operation
+     - One serial ATA (SATA Gen 3.0) controller
+     - One USB 3.0/2.0 controller with integrated PHY
+     - One USB 2.0 controller with ULPI interface. .
+ - Additional peripheral interfaces:
+    - One quad serial peripheral interface (QuadSPI) controller
+    - One serial peripheral interface (SPI) controller
+    - Two enhanced secure digital host controllers
+    - Two I2C controllers
+    - One 16550 compliant DUART (two UART interfaces)
+    - Two general purpose IOs (GPIO)
+    - Two FlexTimers
+    - Five synchronous audio interfaces (SAI)
+    - Pre-boot loader (PBL) provides pre-boot initialization and RCW loading
+    - Single-source clocking solution enabling generation of core, platform,
+    DDR, SerDes, and USB clocks from a single external crystal and internal
+    crystaloscillator
+    - Thermal monitor unit (TMU) with +/- 3C accuracy
+    - Two WatchDog timers
+    - ARM generic timer
+ - QorIQ platform's trust architecture 2.1

arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c

@@ -59,12 +59,18 @@ void get_sys_info(struct sys_info *sys_info)
 	sys_info->freq_ddrbus = sysclk;
 #endif
 
+#ifdef CONFIG_LS1012A
+	sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
+			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_SHIFT) &
+			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_MASK;
+#else
 	sys_info->freq_systembus *= (gur_in32(&gur->rcwsr[0]) >>
 			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_SHIFT) &
 			FSL_CHASSIS2_RCWSR0_SYS_PLL_RAT_MASK;
 	sys_info->freq_ddrbus *= (gur_in32(&gur->rcwsr[0]) >>
 			FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_SHIFT) &
 			FSL_CHASSIS2_RCWSR0_MEM_PLL_RAT_MASK;
+#endif
 
 	for (i = 0; i < CONFIG_SYS_FSL_NUM_CC_PLLS; i++) {
 		ratio[i] = (in_be32(&clk->pllcgsr[i].pllcngsr) >> 1) & 0xff;
@@ -83,6 +89,11 @@ void get_sys_info(struct sys_info *sys_info)
 			freq_c_pll[cplx_pll] / core_cplx_pll_div[c_pll_sel];
 	}
 
+#ifdef CONFIG_LS1012A
+	sys_info->freq_systembus = sys_info->freq_ddrbus / 2;
+	sys_info->freq_ddrbus *= 2;
+#endif
+
 #define HWA_CGA_M1_CLK_SEL	0xe0000000
 #define HWA_CGA_M1_CLK_SHIFT	29
 #ifdef CONFIG_SYS_DPAA_FMAN

arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S

@@ -183,6 +183,7 @@ ENTRY(lowlevel_init)
 	ret
 ENDPROC(lowlevel_init)
 
+#ifdef CONFIG_FSL_LSCH3
 hnf_pstate_poll:
 	/* x0 has the desired status, return 0 for success, 1 for timeout
 	 * clobber x1, x2, x3, x4, x6, x7
@@ -260,6 +261,7 @@ ENTRY(__asm_flush_l3_cache)
 	mov	lr, x29
 	ret
 ENDPROC(__asm_flush_l3_cache)
+#endif
 
 #ifdef CONFIG_MP
 	/* Keep literals not used by the secondary boot code outside it */

arch/arm/cpu/armv8/fsl-layerscape/ls1012a_serdes.c

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/fsl_serdes.h>
+#include <asm/arch/immap_lsch2.h>
+
+struct serdes_config {
+	u32 protocol;
+	u8 lanes[SRDS_MAX_LANES];
+};
+
+static struct serdes_config serdes1_cfg_tbl[] = {
+	{0x2208, {SGMII_2500_FM1_DTSEC1, SGMII_2500_FM1_DTSEC2, NONE, SATA1} },
+	{0x0008, {NONE, NONE, NONE, SATA1} },
+	{0x3508, {SGMII_FM1_DTSEC1, PCIE1, NONE, SATA1} },
+	{0x3305, {SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, NONE, PCIE1} },
+	{0x2205, {SGMII_2500_FM1_DTSEC1, SGMII_2500_FM1_DTSEC2, NONE, PCIE1} },
+	{0x2305, {SGMII_2500_FM1_DTSEC1, SGMII_FM1_DTSEC2, NONE, PCIE1} },
+	{0x9508, {TX_CLK, PCIE1, NONE, SATA1} },
+	{0x3905, {SGMII_FM1_DTSEC1, TX_CLK, NONE, PCIE1} },
+	{0x9305, {TX_CLK, SGMII_FM1_DTSEC2, NONE, PCIE1} },
+	{}
+};
+
+static struct serdes_config *serdes_cfg_tbl[] = {
+	serdes1_cfg_tbl,
+};
+
+enum srds_prtcl serdes_get_prtcl(int serdes, int cfg, int lane)
+{
+	struct serdes_config *ptr;
+
+	if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
+		return 0;
+
+	ptr = serdes_cfg_tbl[serdes];
+	while (ptr->protocol) {
+		if (ptr->protocol == cfg)
+			return ptr->lanes[lane];
+		ptr++;
+	}
+
+	return 0;
+}
+
+int is_serdes_prtcl_valid(int serdes, u32 prtcl)
+{
+	int i;
+	struct serdes_config *ptr;
+
+	if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
+		return 0;
+
+	ptr = serdes_cfg_tbl[serdes];
+	while (ptr->protocol) {
+		if (ptr->protocol == prtcl)
+			break;
+		ptr++;
+	}
+
+	if (!ptr->protocol)
+		return 0;
+
+	for (i = 0; i < SRDS_MAX_LANES; i++) {
+		if (ptr->lanes[i] != NONE)
+			return 1;
+	}
+
+	return 0;
+}

arch/arm/cpu/armv8/fsl-layerscape/soc.c

@@ -12,8 +12,10 @@
 #include <asm/io.h>
 #include <asm/global_data.h>
 #include <asm/arch-fsl-layerscape/config.h>
+#ifdef CONFIG_SYS_FSL_DDR
 #include <fsl_ddr_sdram.h>
 #include <fsl_ddr.h>
+#endif
 #ifdef CONFIG_CHAIN_OF_TRUST
 #include <fsl_validate.h>
 #endif

arch/arm/include/asm/arch-fsl-layerscape/config.h

@@ -14,8 +14,11 @@
 #else
 #define CONFIG_SYS_FSL_DDRC_ARM_GEN3	/* Enable Freescale ARM DDR3 driver */
 #endif
+
+#ifndef CONFIG_LS1012A
 #define CONFIG_SYS_FSL_DDR		/* Freescale DDR driver */
 #define CONFIG_SYS_FSL_DDR_VER		FSL_DDR_VER_5_0
+#endif
 
 /*
  * Reserve secure memory
@@ -200,6 +203,32 @@
 #define CONFIG_SYS_FSL_ERRATUM_A009942
 #define CONFIG_SYS_FSL_ERRATUM_A009660
 #define CONFIG_SYS_FSL_MAX_NUM_OF_SEC		1
+#elif defined(CONFIG_LS1012A)
+#define CONFIG_MAX_CPUS                         1
+#define CONFIG_SYS_CACHELINE_SIZE		64
+#define CONFIG_NUM_DDR_CONTROLLERS		1
+#define CONFIG_SYS_CCSRBAR_DEFAULT		0x01000000
+#define CONFIG_SYS_FSL_SEC_COMPAT		5
+#undef	CONFIG_SYS_FSL_DDRC_ARM_GEN3
+
+#define CONFIG_SYS_FSL_OCRAM_BASE		0x10000000 /* initial RAM */
+#define CONFIG_SYS_FSL_OCRAM_SIZE		0x200000 /* 2 MiB */
+
+#define GICD_BASE		0x01401000
+#define GICC_BASE		0x01402000
+
+#define CONFIG_SYS_FSL_CCSR_GUR_BE
+#define CONFIG_SYS_FSL_CCSR_SCFG_BE
+#define CONFIG_SYS_FSL_ESDHC_BE
+#define CONFIG_SYS_FSL_WDOG_BE
+#define CONFIG_SYS_FSL_DSPI_BE
+#define CONFIG_SYS_FSL_QSPI_BE
+#define CONFIG_SYS_FSL_PEX_LUT_BE
+
+#define SRDS_MAX_LANES		4
+#define CONFIG_SYS_FSL_SRDS_1
+#define CONFIG_SYS_FSL_PCIE_COMPAT		"fsl,qoriq-pcie-v2.4"
+#define CONFIG_SYS_FSL_SEC_BE
 #else
 #error SoC not defined
 #endif

arch/arm/include/asm/arch-fsl-layerscape/cpu.h

@@ -14,6 +14,7 @@ static struct cpu_type cpu_type_list[] = {
 	CPU_TYPE_ENTRY(LS1043, LS1043, 4),
 	CPU_TYPE_ENTRY(LS1023, LS1023, 2),
 	CPU_TYPE_ENTRY(LS2040, LS2040, 4),
+	CPU_TYPE_ENTRY(LS1012, LS1012, 1),
 };
 
 #ifndef CONFIG_SYS_DCACHE_OFF

arch/arm/include/asm/arch-fsl-layerscape/fsl_serdes.h

@@ -134,6 +134,7 @@ enum srds_prtcl {
 	SGMII_2500_FM2_DTSEC6,
 	SGMII_2500_FM2_DTSEC9,
 	SGMII_2500_FM2_DTSEC10,
+	TX_CLK,
 	SERDES_PRCTL_COUNT
 };
 

arch/arm/include/asm/arch-fsl-layerscape/immap_lsch2.h

@@ -60,7 +60,11 @@
 #define CONFIG_SYS_PCIE2_PHYS_ADDR		0x4800000000ULL
 #define CONFIG_SYS_PCIE3_PHYS_ADDR		0x5000000000ULL
 /* LUT registers */
+#ifdef CONFIG_LS1012A
+#define PCIE_LUT_BASE				0xC0000
+#else
 #define PCIE_LUT_BASE				0x10000
+#endif
 #define PCIE_LUT_LCTRL0				0x7F8
 #define PCIE_LUT_DBG				0x7FC
 

arch/arm/include/asm/arch-fsl-layerscape/ns_access.h

@@ -69,7 +69,12 @@ enum csu_cslx_ind {
 	CSU_CSLX_IIC4 = 77,
 	CSU_CSLX_WDT4,
 	CSU_CSLX_WDT3,
+	CSU_CSLX_ESDHC2 = 80,
 	CSU_CSLX_WDT5 = 81,
+	CSU_CSLX_SAI2,
+	CSU_CSLX_SAI1,
+	CSU_CSLX_SAI4,
+	CSU_CSLX_SAI3,
 	CSU_CSLX_FTM2 = 86,
 	CSU_CSLX_FTM1,
 	CSU_CSLX_FTM4,
@@ -143,7 +148,12 @@ static struct csu_ns_dev ns_dev[] = {
 	 {CSU_CSLX_IIC4, CSU_ALL_RW},
 	 {CSU_CSLX_WDT4, CSU_ALL_RW},
 	 {CSU_CSLX_WDT3, CSU_ALL_RW},
+	 {CSU_CSLX_ESDHC2, CSU_ALL_RW},
 	 {CSU_CSLX_WDT5, CSU_ALL_RW},
+	 {CSU_CSLX_SAI2, CSU_ALL_RW},
+	 {CSU_CSLX_SAI1, CSU_ALL_RW},
+	 {CSU_CSLX_SAI4, CSU_ALL_RW},
+	 {CSU_CSLX_SAI3, CSU_ALL_RW},
 	 {CSU_CSLX_FTM2, CSU_ALL_RW},
 	 {CSU_CSLX_FTM1, CSU_ALL_RW},
 	 {CSU_CSLX_FTM4, CSU_ALL_RW},

arch/arm/include/asm/arch-fsl-layerscape/soc.h

@@ -41,6 +41,7 @@ struct cpu_type {
 	{ .name = #n, .soc_ver = SVR_##v, .num_cores = (nc)}
 
 #define SVR_WO_E		0xFFFFFE
+#define SVR_LS1012		0x870400
 #define SVR_LS1043		0x879200
 #define SVR_LS1023		0x879208
 #define SVR_LS2045		0x870120

include/fsl_mmdc.h

@@ -0,0 +1,160 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef FSL_MMDC_H
+#define FSL_MMDC_H
+
+#define CONFIG_SYS_MMDC_CORE_ODT_TIMING		0x12554000
+#define CONFIG_SYS_MMDC_CORE_TIMING_CFG_0	0xbabf7954
+#define CONFIG_SYS_MMDC_CORE_TIMING_CFG_1	0xff328f64
+#define CONFIG_SYS_MMDC_CORE_TIMING_CFG_2	0x01ff00db
+
+#define CONFIG_SYS_MMDC_CORE_MISC		0x00000680
+#define CONFIG_SYS_MMDC_PHY_MEASURE_UNIT	0x00000800
+#define CONFIG_SYS_MMDC_CORE_RDWR_CMD_DELAY	0x00002000
+#define CONFIG_SYS_MMDC_PHY_ODT_CTRL		0x0000022a
+
+#define CONFIG_SYS_MMDC_CORE_OUT_OF_RESET_DELAY	0x00bf1023
+
+#define CONFIG_SYS_MMDC_CORE_ADDR_PARTITION	0x0000007f
+
+#define CONFIG_SYS_MMDC_PHY_ZQ_HW_CTRL		0xa1390003
+
+#define	FORCE_ZQ_AUTO_CALIBRATION		(0x1 << 16)
+
+/* PHY Write Leveling Configuration and Error Status (MPWLGCR) */
+#define WR_LVL_HW_EN				0x00000001
+
+/* PHY Pre-defined Compare and CA delay-line Configuration (MPPDCMPR2) */
+#define MPR_COMPARE_EN				0x00000001
+
+#define CONFIG_SYS_MMDC_PHY_RD_DLY_LINES_CFG	0x40404040
+
+/* MMDC PHY Read DQS gating control register 0 (MPDGCTRL0) */
+#define AUTO_RD_DQS_GATING_CALIBRATION_EN	0x10000000
+
+/* MMDC PHY Read Delay HW Calibration Control Register (MPRDDLHWCTL) */
+#define AUTO_RD_CALIBRATION_EN			0x00000010
+
+#define CONFIG_SYS_MMDC_CORE_PWR_DOWN_CTRL	0x00030035
+
+#define CONFIG_SYS_MMDC_CORE_PWR_SAV_CTRL_STAT	0x00001067
+
+#define CONFIG_SYS_MMDC_CORE_REFRESH_CTL	0x103e8000
+
+#define START_REFRESH				0x00000001
+
+/* MMDC Core Special Command Register (MDSCR) */
+#define CMD_ADDR_MSB_MR_OP(x)   (x << 24)
+
+#define  CMD_ADDR_LSB_MR_ADDR(x)    (x << 16)
+
+#define DISABLE_CFG_REQ		0x0
+#define CONFIGURATION_REQ	(0x1  << 15)
+#define WL_EN			(0x1  << 9)
+
+#define	CMD_NORMAL		(0x0 << 4)
+#define	CMD_PRECHARGE		(0x1 << 4)
+#define	CMD_AUTO_REFRESH	(0x2 << 4)
+#define	CMD_LOAD_MODE_REG	(0x3 << 4)
+#define	CMD_ZQ_CALIBRATION	(0x4 << 4)
+#define	CMD_PRECHARGE_BANK_OPEN	(0x5 << 4)
+#define	CMD_MRR			(0x6 << 4)
+
+#define CMD_BANK_ADDR_0		0x0
+#define CMD_BANK_ADDR_1		0x1
+#define CMD_BANK_ADDR_2		0x2
+#define CMD_BANK_ADDR_3		0x3
+#define CMD_BANK_ADDR_4		0x4
+#define CMD_BANK_ADDR_5		0x5
+#define CMD_BANK_ADDR_6		0x6
+#define CMD_BANK_ADDR_7		0x7
+
+/* MMDC Registers */
+struct mmdc_p_regs {
+	u32 mdctl;
+	u32 mdpdc;
+	u32 mdotc;
+	u32 mdcfg0;
+	u32 mdcfg1;
+	u32 mdcfg2;
+	u32 mdmisc;
+	u32 mdscr;
+	u32 mdref;
+	u32 res1[2];
+	u32 mdrwd;
+	u32 mdor;
+	u32 mdmrr;
+	u32 mdcfg3lp;
+	u32 mdmr4;
+	u32 mdasp;
+	u32 res2[239];
+	u32 maarcr;
+	u32 mapsr;
+	u32 maexidr0;
+	u32 maexidr1;
+	u32 madpcr0;
+	u32 madpcr1;
+	u32 madpsr0;
+	u32 madpsr1;
+	u32 madpsr2;
+	u32 madpsr3;
+	u32 madpsr4;
+	u32 madpsr5;
+	u32 masbs0;
+	u32 masbs1;
+	u32 res3[2];
+	u32 magenp;
+	u32 res4[239];
+	u32 mpzqhwctrl;
+	u32 mpzqswctrl;
+	u32 mpwlgcr;
+	u32 mpwldectrl0;
+	u32 mpwldectrl1;
+	u32 mpwldlst;
+	u32 mpodtctrl;
+	u32 mprddqby0dl;
+	u32 mprddqby1dl;
+	u32 mprddqby2dl;
+	u32 mprddqby3dl;
+	u32 res5[4];
+	u32 mpdgctrl0;
+	u32 mpdgctrl1;
+	u32 mpdgdlst0;
+	u32 mprddlctl;
+	u32 mprddlst;
+	u32 mpwrdlctl;
+	u32 mpwrdlst;
+	u32 mpsdctrl;
+	u32 mpzqlp2ctl;
+	u32 mprddlhwctl;
+	u32 mpwrdlhwctl;
+	u32 mprddlhwst0;
+	u32 mprddlhwst1;
+	u32 mpwrdlhwst0;
+	u32 mpwrdlhwst1;
+	u32 mpwlhwerr;
+	u32 mpdghwst0;
+	u32 mpdghwst1;
+	u32 mpdghwst2;
+	u32 mpdghwst3;
+	u32 mppdcmpr1;
+	u32 mppdcmpr2;
+	u32 mpswdar0;
+	u32 mpswdrdr0;
+	u32 mpswdrdr1;
+	u32 mpswdrdr2;
+	u32 mpswdrdr3;
+	u32 mpswdrdr4;
+	u32 mpswdrdr5;
+	u32 mpswdrdr6;
+	u32 mpswdrdr7;
+	u32 mpmur0;
+	u32 mpwrcadl;
+	u32 mpdccr;
+};
+
+#endif /* FSL_MMDC_H */

include/linux/usb/xhci-fsl.h

@@ -59,10 +59,14 @@ struct fsl_xhci {
 #define CONFIG_SYS_FSL_XHCI_USB1_ADDR CONFIG_SYS_LS2080A_XHCI_USB1_ADDR
 #define CONFIG_SYS_FSL_XHCI_USB2_ADDR CONFIG_SYS_LS2080A_XHCI_USB2_ADDR
 #define CONFIG_SYS_FSL_XHCI_USB3_ADDR 0
-#elif defined(CONFIG_LS1043A)
+#elif defined(CONFIG_LS1043A) || defined(CONFIG_LS1012A)
 #define CONFIG_SYS_FSL_XHCI_USB1_ADDR CONFIG_SYS_LS1043A_XHCI_USB1_ADDR
 #define CONFIG_SYS_FSL_XHCI_USB2_ADDR CONFIG_SYS_LS1043A_XHCI_USB2_ADDR
 #define CONFIG_SYS_FSL_XHCI_USB3_ADDR CONFIG_SYS_LS1043A_XHCI_USB3_ADDR
+#elif defined(CONFIG_LS1012A)
+#define CONFIG_SYS_FSL_XHCI_USB1_ADDR CONFIG_SYS_LS1043A_XHCI_USB1_ADDR
+#define CONFIG_SYS_FSL_XHCI_USB2_ADDR 0
+#define CONFIG_SYS_FSL_XHCI_USB3_ADDR 0
 #endif
 
 #define FSL_USB_XHCI_ADDR	{CONFIG_SYS_FSL_XHCI_USB1_ADDR, \