rockchip: arm64: rk3399: add SPL support

Add SPL support for rk3399, default with of-platdata enabled.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Drop Kconfig changes to fix build error:
Signed-off-by: Simon Glass <sjg@chromium.org>

arch/arm/mach-rockchip/Makefile

@@ -11,6 +11,7 @@ else ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o
 obj-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-spl.o
 obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-spl.o
+obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399-board-spl.o
 obj-$(CONFIG_ROCKCHIP_BROM_HELPER) += save_boot_param.o
 else
 obj-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board.o

arch/arm/mach-rockchip/rk3399-board-spl.c

@@ -0,0 +1,158 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <led.h>
+#include <malloc.h>
+#include <ram.h>
+#include <spl.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/periph.h>
+#include <asm/arch/sdram.h>
+#include <asm/arch/timer.h>
+#include <dm/pinctrl.h>
+#include <dm/root.h>
+#include <dm/test.h>
+#include <dm/util.h>
+#include <power/regulator.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 spl_boot_device(void)
+{
+	return BOOT_DEVICE_MMC1;
+}
+
+u32 spl_boot_mode(const u32 boot_device)
+{
+	return MMCSD_MODE_RAW;
+}
+
+#define TIMER_CHN10_BASE	0xff8680a0
+#define TIMER_END_COUNT_L	0x00
+#define TIMER_END_COUNT_H	0x04
+#define TIMER_INIT_COUNT_L	0x10
+#define TIMER_INIT_COUNT_H	0x14
+#define TIMER_CONTROL_REG	0x1c
+
+#define TIMER_EN	0x1
+#define	TIMER_FMODE	(0 << 1)
+#define	TIMER_RMODE	(1 << 1)
+
+void secure_timer_init(void)
+{
+	writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_L);
+	writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_H);
+	writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_L);
+	writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_H);
+	writel(TIMER_EN | TIMER_FMODE, TIMER_CHN10_BASE + TIMER_CONTROL_REG);
+}
+
+#define GRF_EMMCCORE_CON11 0xff77f02c
+void board_init_f(ulong dummy)
+{
+	struct udevice *pinctrl;
+	struct udevice *dev;
+	int ret;
+
+	/* Example code showing how to enable the debug UART on RK3288 */
+#include <asm/arch/grf_rk3399.h>
+	/* Enable early UART2 channel C on the RK3399 */
+#define GRF_BASE	0xff770000
+	struct rk3399_grf_regs * const grf = (void *)GRF_BASE;
+
+	rk_clrsetreg(&grf->gpio4c_iomux,
+		     GRF_GPIO4C3_SEL_MASK,
+		     GRF_UART2DGBC_SIN << GRF_GPIO4C3_SEL_SHIFT);
+	rk_clrsetreg(&grf->gpio4c_iomux,
+		     GRF_GPIO4C4_SEL_MASK,
+		     GRF_UART2DBGC_SOUT << GRF_GPIO4C4_SEL_SHIFT);
+	/* Set channel C as UART2 input */
+	rk_clrsetreg(&grf->soc_con7,
+		     GRF_UART_DBG_SEL_MASK,
+		     GRF_UART_DBG_SEL_C << GRF_UART_DBG_SEL_SHIFT);
+#define EARLY_UART
+#ifdef EARLY_UART
+	/*
+	 * Debug UART can be used from here if required:
+	 *
+	 * debug_uart_init();
+	 * printch('a');
+	 * printhex8(0x1234);
+	 * printascii("string");
+	 */
+	debug_uart_init();
+	printascii("U-Boot SPL board init");
+#endif
+	/*  Emmc clock generator: disable the clock multipilier */
+	rk_clrreg(GRF_EMMCCORE_CON11, 0x0ff);
+
+	ret = spl_init();
+	if (ret) {
+		debug("spl_init() failed: %d\n", ret);
+		hang();
+	}
+
+	secure_timer_init();
+
+	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
+	if (ret) {
+		debug("Pinctrl init failed: %d\n", ret);
+		return;
+	}
+
+	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+	if (ret) {
+		debug("DRAM init failed: %d\n", ret);
+		return;
+	}
+}
+
+void spl_board_init(void)
+{
+	struct udevice *pinctrl;
+	int ret;
+
+	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
+	if (ret) {
+		debug("%s: Cannot find pinctrl device\n", __func__);
+		goto err;
+	}
+
+	/* Enable debug UART */
+	ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
+	if (ret) {
+		debug("%s: Failed to set up console UART\n", __func__);
+		goto err;
+	}
+
+	preloader_console_init();
+#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+	back_to_bootrom();
+#endif
+	return;
+err:
+	printf("spl_board_init: Error %d\n", ret);
+
+	/* No way to report error here */
+	hang();
+}
+
+#ifdef CONFIG_SPL_LOAD_FIT
+int board_fit_config_name_match(const char *name)
+{
+	/* Just empty function now - can't decide what to choose */
+	debug("%s: %s\n", __func__, name);
+
+	return 0;
+}
+#endif

include/configs/rk3399_common.h

@@ -22,6 +22,12 @@
 #define CONFIG_SYS_TEXT_BASE		0x00200000
 #define CONFIG_SYS_INIT_SP_ADDR		0x00300000
 #define CONFIG_SYS_LOAD_ADDR		0x00800800
+#define CONFIG_SPL_STACK		0xff8effff
+#define CONFIG_SPL_TEXT_BASE		0xff8c2008
+#define CONFIG_SPL_MAX_SIZE		0x30000
+/*  BSS setup */
+#define CONFIG_SPL_BSS_START_ADDR       0xff8e0000
+#define CONFIG_SPL_BSS_MAX_SIZE         0x10000
 
 #define CONFIG_SYS_BOOTM_LEN	(64 << 20)	/* 64M */