da850/omap-l138: Add support to read u-boot image from MMC/SD

DA850/OMAP-L138 does not support strict MMC/SD boot mode. SPL will
be in SPI flash and U-Boot image will be in MMC/SD card. SPL will
do the low level initialization and then loads the u-boot image
from MMC/SD card.

Define CONFIG_SPL_MMC_LOAD macro in the DA850/OMAP-L138
configuration file to enable this feature.

Tested-by: Christian Riesch <christian.riesch@omicron.at>
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Rajashekhara, Sudhakar <sudhakar.raj@ti.com>
Signed-off-by: Hadli, Manjunath <manjunath.hadli@ti.com>
diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h
index 237db96..e4cc3be 100644
--- a/include/configs/da850evm.h
+++ b/include/configs/da850evm.h
@@ -350,6 +350,17 @@
 #define CONFIG_SPL_TEXT_BASE	0x80000000
 #define CONFIG_SPL_MAX_SIZE	32768
 
+
+/* Load U-Boot Image From MMC */
+#ifdef CONFIG_SPL_MMC_LOAD
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SPL_FAT_SUPPORT
+#define CONFIG_SPL_LIBDISK_SUPPORT
+#define CONFIG_SYS_MMC_U_BOOT_OFFS	0x75
+#define CONFIG_SYS_MMC_U_BOOT_SIZE	0x30000
+#undef CONFIG_SPL_SPI_LOAD
+#endif
+
 /* additions for new relocation code, must added to all boards */
 #define CONFIG_SYS_SDRAM_BASE		0xc0000000
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_SDRAM_BASE + 0x1000 - /* Fix this */ \