Implemented fb_set_reboot_flag() for OMAP5 to set an environment variable 'dofastboot' when reboot-bootloader called.
This environment variable will be checked in boot command and fastboot will be called if the variable is set. If the bootcmd env variable of OMAP5 common is overwritten with board-specific command, then these changes will not apply.
This was originally intended for DRA7 platform, but now applies to all OMAP5.
Ref: http://git.omapzoom.org/?p=repo/u-boot.git;a=commit;h=19da2e436e9806259cf1f4...
Signed-off-by: Angela Stegmaier angelabaker@ti.com Signed-off-by: Dileep Katta dileep.katta@linaro.org --- Changes in v2: - None Changes in v3: - Changed the implementation to be more abstract - Used environment variable instead of board-specific registers - Moved the code to OMAP5 Changes in v4: - Removed udelay and sleep after saveenv
arch/arm/cpu/armv7/omap-common/boot-common.c | 10 ++++++++++ include/configs/ti_omap5_common.h | 7 +++++++ 2 files changed, 17 insertions(+)
diff --git a/arch/arm/cpu/armv7/omap-common/boot-common.c b/arch/arm/cpu/armv7/omap-common/boot-common.c index 17500f2..55ca94d 100644 --- a/arch/arm/cpu/armv7/omap-common/boot-common.c +++ b/arch/arm/cpu/armv7/omap-common/boot-common.c @@ -162,3 +162,13 @@ void arch_preboot_os(void) ahci_reset(DWC_AHSATA_BASE); } #endif + +#ifdef CONFIG_CMD_FASTBOOT +int fb_set_reboot_flag(void) +{ + printf("Setting reboot to fastboot flag ...\n"); + setenv("dofastboot", "1"); + saveenv(); + return 0; +} +#endif diff --git a/include/configs/ti_omap5_common.h b/include/configs/ti_omap5_common.h index cd92454..24f8021 100644 --- a/include/configs/ti_omap5_common.h +++ b/include/configs/ti_omap5_common.h @@ -141,13 +141,20 @@ "loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile};\0" \ DFUARGS \
+ #define CONFIG_BOOTCOMMAND \ + "if test ${dofastboot} -eq 1; then " \ + "echo Boot fastboot requested, resetting dofastboot ...;" \ + "setenv dofastboot 0; saveenv;" \ + "echo Booting into fastboot ...; fastboot;" \ + "fi;" \ "run findfdt; " \ "run mmcboot;" \ "setenv mmcdev 1; " \ "setenv bootpart 1:2; " \ "setenv mmcroot /dev/mmcblk0p2 rw; " \ "run mmcboot;" \ + ""
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