On 12 July 2016 at 05:09, Ziyuan Xu xzy.xu@rock-chips.com wrote:
From: Xu Ziyuan xzy.xu@rock-chips.com
If we would like to boot from SD card, we have to implement mmc driver in SPL stage, and get a slightly large SPL binary. Rockchip SoC's bootrom code has the ability to load spl and u-boot, then boot.
If CONFIG_ROCKCHIP_SPL_BACK_TO_BROM is enabled, the spl will return to bootrom in board_init_f(), then bootrom loads u-boot binary.
Loading sequence after rework: bootrom ==> spl ==> bootrom ==> u-boot
Signed-off-by: Ziyuan Xu xzy.xu@rock-chips.com Acked-by: Simon Glass sjg@chromium.org
Changes in v5:
- Revise some typos
Changes in v4:
- Add acked flag from Simon
- Rename to CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
- Add Kconfig option for this feature support
- Revise some nits
- Update comments a little
- Update commit message
Changes in v3:
- Add CONFIG_ROCKCHIP_RK3288_SPL_BACKTO_BROM for enabling this feature
- Update doc/README.rockchip to instruct how to use it
- Detailed commit message
Changes in v2:
- Add sdcard iomux initlization in board_init() to fix sdmmc command
sending timeout issue when booting from eMMC
arch/arm/mach-rockchip/Kconfig | 8 ++++++ arch/arm/mach-rockchip/Makefile | 1 + arch/arm/mach-rockchip/board.c | 33 ++++++++++++++++++++++ arch/arm/mach-rockchip/rk3036/Makefile | 1 - arch/arm/mach-rockchip/rk3288-board-spl.c | 5 +++- .../mach-rockchip/{rk3036 => }/save_boot_param.S | 2 +- doc/README.rockchip | 14 +++++++++ include/configs/rk3288_common.h | 5 ++++ 8 files changed, 66 insertions(+), 3 deletions(-) rename arch/arm/mach-rockchip/{rk3036 => }/save_boot_param.S (90%)
I fixed several typos in the Kconfig help, so ended up rewording it a little. Your patches are good but please can you take a little more time to read them before sending? Also please use "U-Boot" consistently instead of u-boot, U-BOOT, etc. I am not claiming to be perfect here either - in fact I am quite bad with typos sometimes. But a read through will often reduce their number.
Fixed, and:
Applied to u-boot-rockchip, thanks!