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| author | huang lin <hl@rock-chips.com> | 2015-11-17 14:20:27 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-12-01 08:07:22 -0700 |
| commit | be1d5e0388d2e506d875d4b984485526bdf3197f (patch) | |
| tree | 8118089e14f8848081646826253e8ada3d9379ef /arch/arm/mach-rockchip/rk3036 | |
| parent | 53c45f0ca27cbf6acd840e87beaa1ba1be74399b (diff) | |
| download | talos-obmc-uboot-be1d5e0388d2e506d875d4b984485526bdf3197f.tar.gz talos-obmc-uboot-be1d5e0388d2e506d875d4b984485526bdf3197f.zip | |
rockchip: rk3036: Add core Soc start-up code
rk3036 only 4K size SRAM for SPL, so only support
timer, uart, sdram driver in SPL stage, when finish
initial sdram, back to bootrom.And in rk3036 sdmmc and
debug uart use same iomux, so if you want to boot from
sdmmc, you must disable debug uart.
Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Fixed build error for chromebook_jerry, firefly-rk3288:
Signed-off-by: Simon Glass <sjg@chromium.org>
Series-changes: 8
- Fix build error for chromebook_jerry, firefly-rk3288
Diffstat (limited to 'arch/arm/mach-rockchip/rk3036')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3036/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arm/mach-rockchip/rk3036/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-rockchip/rk3036/save_boot_param.S | 32 |
3 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3036/Kconfig b/arch/arm/mach-rockchip/rk3036/Kconfig new file mode 100644 index 0000000000..d76d5e18ec --- /dev/null +++ b/arch/arm/mach-rockchip/rk3036/Kconfig @@ -0,0 +1,3 @@ +if ROCKCHIP_RK3036 + +endif diff --git a/arch/arm/mach-rockchip/rk3036/Makefile b/arch/arm/mach-rockchip/rk3036/Makefile index 6095777b8f..97d299d6cc 100644 --- a/arch/arm/mach-rockchip/rk3036/Makefile +++ b/arch/arm/mach-rockchip/rk3036/Makefile @@ -10,3 +10,4 @@ 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 new file mode 100644 index 0000000000..778ec83c2c --- /dev/null +++ b/arch/arm/mach-rockchip/rk3036/save_boot_param.S @@ -0,0 +1,32 @@ +/* + * (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) |
