armv8/ls1043ardb: Add sd boot support

Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/include/configs/ls1043ardb.h b/include/configs/ls1043ardb.h
index c776640..307d947 100644
--- a/include/configs/ls1043ardb.h
+++ b/include/configs/ls1043ardb.h
@@ -12,7 +12,7 @@
 #define CONFIG_DISPLAY_CPUINFO
 #define CONFIG_DISPLAY_BOARDINFO
 
-#if defined(CONFIG_NAND_BOOT)
+#if defined(CONFIG_NAND_BOOT) || defined(CONFIG_SD_BOOT)
 #define CONFIG_SYS_TEXT_BASE		0x82000000
 #else
 #define CONFIG_SYS_TEXT_BASE		0x60100000
@@ -45,6 +45,10 @@
 #define CONFIG_SYS_FSL_PBL_RCW board/freescale/ls1043ardb/ls1043ardb_rcw_nand.cfg
 #endif
 
+#ifdef CONFIG_SD_BOOT
+#define CONFIG_SYS_FSL_PBL_RCW board/freescale/ls1043ardb/ls1043ardb_rcw_sd.cfg
+#endif
+
 /*
  * NOR Flash Definitions
  */
@@ -227,6 +231,11 @@
 #define CONFIG_ENV_IS_IN_NAND
 #define CONFIG_ENV_SIZE			0x2000
 #define CONFIG_ENV_OFFSET		(10 * CONFIG_SYS_NAND_BLOCK_SIZE)
+#elif defined(CONFIG_SD_BOOT)
+#define CONFIG_ENV_OFFSET		(1024 * 1024)
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV		0
+#define CONFIG_ENV_SIZE			0x2000
 #else
 #define CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_ENV_ADDR			(CONFIG_SYS_FLASH_BASE + 0x200000)