[U-Boot] [PATCH 4/5] spl: spl_mmc: Add option to boot from a MMC partition with offset

[Stefan Roese]

This patch introduces the option to boot from a MMC card parition with
an offset. This can be done by using both defines together:

define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION 1
define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR    ((160 << 10) / 512)

The example above loads the main U-Boot at offset 160KiB from the MMC
partition 1.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Luka Perkov <luka.perkov at sartura.hr>
Cc: Dirk Eibach <eibach at gdsys.de>
Cc: Tom Rini <trini at konsulko.com>
---
 common/spl/spl_mmc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c
index 552f80d..d308679 100644
--- a/common/spl/spl_mmc.c
+++ b/common/spl/spl_mmc.c
@@ -67,7 +67,12 @@ static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
 		return -1;
 	}
 
+#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
+	return mmc_load_image_raw_sector(mmc, info.start +
+					 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
+#else
 	return mmc_load_image_raw_sector(mmc, info.start);
+#endif
 }
 #endif
 
-- 
2.4.6