[PATCH v2 0/3] Add SPL build support for RK3568

@@ -260,6 +260,8 @@ config ROCKCHIP_RK3399
 config ROCKCHIP_RK3568
 	bool "Support Rockchip RK3568"
 	select ARM64
+	select SUPPORT_SPL
+	select SPL
 	select CLK
 	select PINCTRL
 	select RAM

@@ -1,20 +1,42 @@
 CONFIG_ARM=y
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_TEXT_BASE=0x00a00000
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_NR_DRAM_BANKS=2
-CONFIG_DEFAULT_DEVICE_TREE="rk3568-evb"
 CONFIG_ROCKCHIP_RK3568=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_COMMON_BOARD=y
+CONFIG_SPL_MMC_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
+CONFIG_SPL_STACK_R_ADDR=0x600000
 CONFIG_TARGET_EVB_RK3568=y
 CONFIG_DEBUG_UART_BASE=0xFE660000
 CONFIG_DEBUG_UART_CLOCK=24000000
+CONFIG_DEFAULT_DEVICE_TREE="rk3568-evb"
 CONFIG_DEBUG_UART=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_SPL_LOAD_FIT=y
 CONFIG_DEFAULT_FDT_FILE="rockchip/rk3568-evb.dtb"
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_DISPLAY_BOARDINFO_LATE=y
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_SEPARATE_BSS=y
+CONFIG_SPL_CRC32_SUPPORT=y
+CONFIG_SPL_ATF=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_MMC=y
 # CONFIG_CMD_SETEXPR is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIVE=y
 CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_SPL_REGMAP=y
+CONFIG_SPL_SYSCON=y
+CONFIG_SPL_CLK=y
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
 CONFIG_MISC=y

@@ -28,6 +50,7 @@ CONFIG_ETH_DESIGNWARE=y
 CONFIG_GMAC_ROCKCHIP=y
 CONFIG_REGULATOR_PWM=y
 CONFIG_PWM_ROCKCHIP=y
+CONFIG_SPL_RAM=y
 CONFIG_DM_RESET=y
 CONFIG_BAUDRATE=1500000
 CONFIG_DEBUG_UART_SHIFT=2

@@ -18,6 +18,10 @@
 
 #define CONFIG_SYS_INIT_SP_ADDR		0x00c00000
 #define CONFIG_SYS_LOAD_ADDR		0x00c00800
+#define CONFIG_SPL_STACK		0x00400000
+#define CONFIG_SPL_MAX_SIZE		0x20000
+#define CONFIG_SPL_BSS_START_ADDR	0x4000000
+#define CONFIG_SPL_BSS_MAX_SIZE		0x4000
 #define CONFIG_SYS_BOOTM_LEN		(64 << 20)	/* 64M */
 
 #define CONFIG_SYS_SDRAM_BASE		0

@@ -13,6 +13,14 @@
 
 #define PMUGRF_BASE		0xfdc20000
 #define GRF_BASE		0xfdc60000
+#define GRF_GPIO1B_DS_2		0x218
+#define GRF_GPIO1B_DS_3		0x21c
+#define GRF_GPIO1C_DS_0		0x220
+#define GRF_GPIO1C_DS_1		0x224
+#define GRF_GPIO1C_DS_2		0x228
+#define GRF_GPIO1C_DS_3		0x22c
+#define SGRF_BASE		0xFDD18000
+#define SGRF_SOC_CON4		0x10
 
 /* PMU_GRF_GPIO0D_IOMUX_L */
 enum {

@@ -81,5 +89,16 @@ void board_debug_uart_init(void)
 
 int arch_cpu_init(void)
 {
+#ifdef CONFIG_SPL_BUILD
+	/* Set the emmc sdmmc0 to secure */
+	rk_clrreg(SGRF_BASE + SGRF_SOC_CON4, (0x3 << 11 | 0x1 << 4));
+	/* set the emmc driver strength to level 2 */
+	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1B_DS_2);
+	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1B_DS_3);
+	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_0);
+	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_1);
+	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_2);
+	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_3);
+#endif
 	return 0;
 }

@@ -9,6 +9,10 @@
 		mmc1 = &sdmmc0;
 	};
 
+	chosen {
+		u-boot,spl-boot-order = &sdhci, &sdmmc0;
+	};
+
 	dmc: dmc {
 		compatible = "rockchip,rk3568-dmc";
 		u-boot,dm-pre-reloc;

@@ -35,3 +39,16 @@
 	u-boot,dm-pre-reloc;
 	status = "okay";
 };
+
+&sdmmc0 {
+	u-boot,dm-spl;
+	status = "okay";
+};
+
+&sdhci {
+	bus-width = <8>;
+	u-boot,dm-spl;
+	mmc-hs200-1_8v;
+	status = "okay";
+};
+