It is possible to boot device using a micro SD or eMMC slots. In this situation, boot device should be registered as a block device 0 in the MMC framework, because CONFIG_SYS_MMC_ENV_DEV is usually set to "0" in the most config cases.
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com --- Changes V3: - separate two changes into two commits --- board/samsung/common/board.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/board/samsung/common/board.c b/board/samsung/common/board.c index ecf3f76..f07a900 100644 --- a/board/samsung/common/board.c +++ b/board/samsung/common/board.c @@ -251,18 +251,28 @@ int board_mmc_init(bd_t *bis) { int ret;
+ if (boot_device() == BOOT_DEVICE_SDMMC) { +#ifdef CONFIG_SDHCI + /* mmc initializattion for available channels */ + ret = exynos_mmc_init(gd->fdt_blob); +#endif #ifdef CONFIG_DWMMC - /* dwmmc initializattion for available channels */ - ret = exynos_dwmmc_init(gd->fdt_blob); - if (ret) - debug("dwmmc init failed\n"); + /* dwmmc initializattion for available channels */ + ret = exynos_dwmmc_init(gd->fdt_blob); +#endif + } else { +#ifdef CONFIG_DWMMC + /* dwmmc initializattion for available channels */ + ret = exynos_dwmmc_init(gd->fdt_blob); #endif #ifdef CONFIG_SDHCI - /* mmc initializattion for available channels */ - ret = exynos_mmc_init(gd->fdt_blob); + /* mmc initializattion for available channels */ + ret = exynos_mmc_init(gd->fdt_blob); +#endif + } + if (ret) debug("mmc init failed\n"); -#endif
return ret; }