mirror of
https://github.com/brain-hackers/u-boot-brain
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bb0c63a5f3
Implement support for saving ARM register R4 early during boot using save_boot_params . Implement support for decoding the stored register R4 value in spl_boot_device() to obtain boot device from which the SoC booted. This way, the SPL will always load U-Boot from the same device from which the SPL itself booted instead of using hard-coded boot device. This functionality is useful for example when booting sama5d2-xplained from SD card, where by default the SPL would try loading the U-Boot from eMMC and fail. This is because eMMC is on SDHCI0 (BOOT_DEVICE_MMC1), while SD slot is on SDHCI1 (BOOT_DEVICE_MMC2) and the SPL was hard-wired to always boot from BOOT_DEVICE_MMC1. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andreas Bießmann <andreas.devel@googlemail.com> Cc: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Andreas Bießmann <andreas@biessmann.org> |
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| .. | ||
| arm920t | ||
| arm926ejs | ||
| armv7 | ||
| include/mach | ||
| atmel_sfr.c | ||
| bootparams_atmel.S | ||
| clock.c | ||
| config.mk | ||
| Kconfig | ||
| Makefile | ||
| matrix.c | ||
| mpddrc.c | ||
| phy.c | ||
| sdram.c | ||
| spl_at91.c | ||
| spl_atmel.c | ||
| spl.c | ||