If we would like to boot from SD card, we have to implement mmc driver in SPL stage, and get a slightly large spl binrary. RK3288's bootrom code has the ability to load spl and u-boot. This patch tasks bootrom to load u-boot.
Loading sequence after rework: bootrom ==> spl ==> bootrom ==> u-boot
Signed-off-by: Ziyuan Xu xzy.xu@rock-chips.com --- arch/arm/mach-rockchip/Makefile | 1 + arch/arm/mach-rockchip/rk3036/Makefile | 1 - arch/arm/mach-rockchip/rk3036/save_boot_param.S | 32 ------------------------- arch/arm/mach-rockchip/rk3288-board-spl.c | 3 ++- arch/arm/mach-rockchip/save_boot_param.S | 32 +++++++++++++++++++++++++ include/configs/firefly-rk3288.h | 2 -- include/configs/rk3288_common.h | 4 +--- 7 files changed, 36 insertions(+), 39 deletions(-) delete mode 100644 arch/arm/mach-rockchip/rk3036/save_boot_param.S create mode 100644 arch/arm/mach-rockchip/save_boot_param.S
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile index 55567cb..8e0c0ab 100644 --- a/arch/arm/mach-rockchip/Makefile +++ b/arch/arm/mach-rockchip/Makefile @@ -7,6 +7,7 @@ ifdef CONFIG_SPL_BUILD obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-spl.o obj-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o +obj-y += save_boot_param.o else obj-$(CONFIG_ROCKCHIP_RK3288) += board.o endif diff --git a/arch/arm/mach-rockchip/rk3036/Makefile b/arch/arm/mach-rockchip/rk3036/Makefile index 97d299d..6095777 100644 --- a/arch/arm/mach-rockchip/rk3036/Makefile +++ b/arch/arm/mach-rockchip/rk3036/Makefile @@ -10,4 +10,3 @@ obj-y += syscon_rk3036.o endif
obj-y += sdram_rk3036.o -obj-y += save_boot_param.o diff --git a/arch/arm/mach-rockchip/rk3036/save_boot_param.S b/arch/arm/mach-rockchip/rk3036/save_boot_param.S deleted file mode 100644 index 778ec83..0000000 --- a/arch/arm/mach-rockchip/rk3036/save_boot_param.S +++ /dev/null @@ -1,32 +0,0 @@ -/* - * (C) Copyright 2015 Google, Inc - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <linux/linkage.h> - -.globl SAVE_SP_ADDR -SAVE_SP_ADDR: - .word 0 - -/* - * void save_boot_params - * - * Save sp, lr, r1~r12 - */ -ENTRY(save_boot_params) - push {r1-r12, lr} - ldr r0, =SAVE_SP_ADDR - str sp, [r0] - b save_boot_params_ret @ back to my caller -ENDPROC(save_boot_params) - - -.globl back_to_bootrom -ENTRY(back_to_bootrom) - ldr r0, =SAVE_SP_ADDR - ldr sp, [r0] - mov r0, #0 - pop {r1-r12, pc} -ENDPROC(back_to_bootrom) diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c index e133cca..40abc0e 100644 --- a/arch/arm/mach-rockchip/rk3288-board-spl.c +++ b/arch/arm/mach-rockchip/rk3288-board-spl.c @@ -149,7 +149,7 @@ static int configure_emmc(struct udevice *pinctrl) return 0; } #endif - +extern void back_to_bootrom(void); void board_init_f(ulong dummy) { struct udevice *pinctrl; @@ -204,6 +204,7 @@ void board_init_f(ulong dummy) debug("DRAM init failed: %d\n", ret); return; } + back_to_bootrom(); }
static int setup_led(void) diff --git a/arch/arm/mach-rockchip/save_boot_param.S b/arch/arm/mach-rockchip/save_boot_param.S new file mode 100644 index 0000000..85b407b --- /dev/null +++ b/arch/arm/mach-rockchip/save_boot_param.S @@ -0,0 +1,32 @@ +/* + * (C) Copyright 2016 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <linux/linkage.h> + +.globl SAVE_SP_ADDR +SAVE_SP_ADDR: + .word 0 + +/* + * void save_boot_params + * + * Save sp, lr, r1~r12 + */ +ENTRY(save_boot_params) + push {r1-r12, lr} + ldr r0, =SAVE_SP_ADDR + str sp, [r0] + b save_boot_params_ret @ back to my caller +ENDPROC(save_boot_params) + + +.globl back_to_bootrom +ENTRY(back_to_bootrom) + ldr r0, =SAVE_SP_ADDR + ldr sp, [r0] + mov r0, #0 + pop {r1-r12, pc} +ENDPROC(back_to_bootrom) diff --git a/include/configs/firefly-rk3288.h b/include/configs/firefly-rk3288.h index a29f557..ee924c3 100644 --- a/include/configs/firefly-rk3288.h +++ b/include/configs/firefly-rk3288.h @@ -14,8 +14,6 @@
#include <configs/rk3288_common.h>
-#define CONFIG_SPL_MMC_SUPPORT - #define CONFIG_ENV_IS_IN_MMC #define CONFIG_SYS_MMC_ENV_DEV 0 /* SPL @ 32k for ~36k diff --git a/include/configs/rk3288_common.h b/include/configs/rk3288_common.h index 9d50d83..d80a427 100644 --- a/include/configs/rk3288_common.h +++ b/include/configs/rk3288_common.h @@ -31,9 +31,8 @@ #define CONFIG_SPL_LIBGENERIC_SUPPORT #define CONFIG_SPL_SERIAL_SUPPORT #define CONFIG_SYS_NS16550_MEM32 -#define CONFIG_SPL_BOARD_INIT
-#define CONFIG_SYS_TEXT_BASE 0x00100000 +#define CONFIG_SYS_TEXT_BASE 0x00000000 #define CONFIG_SYS_INIT_SP_ADDR 0x00100000 #define CONFIG_SYS_LOAD_ADDR 0x00800800 #define CONFIG_SPL_STACK 0xff718000 @@ -66,7 +65,6 @@
/* FAT sd card locations. */ #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 -#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
#define CONFIG_SPL_PINCTRL_SUPPORT #define CONFIG_SPL_RAM_SUPPORT