diff --git a/include/configs/ge_bx50v3.h b/include/configs/ge_bx50v3.h
index 7a0c63b350f4db7b176ee24c9cbf70de73ce73db..3bf0cd518c1a23c04c6cc207d9e3a0a2e1afd4b6 100644
--- a/include/configs/ge_bx50v3.h
+++ b/include/configs/ge_bx50v3.h
@@ -79,7 +79,6 @@
 	NETWORKBOOT \
 	"bootcause=POR\0" \
 	"image=/boot/fitImage\0" \
-	"fdt_high=0xffffffff\0" \
 	"dev=mmc\0" \
 	"devnum=2\0" \
 	"rootdev=mmcblk0p\0" \
@@ -154,6 +153,8 @@
 /* Physical Memory Map */
 #define PHYS_SDRAM                     MMDC0_ARB_BASE_ADDR
 
+#define CONFIG_SYS_BOOTMAPSZ (256 << 20)     /* 256M */
+
 #define CONFIG_SYS_SDRAM_BASE          PHYS_SDRAM
 #define CONFIG_SYS_INIT_RAM_ADDR       IRAM_BASE_ADDR
 #define CONFIG_SYS_INIT_RAM_SIZE       IRAM_SIZE
diff --git a/include/configs/mx53ppd.h b/include/configs/mx53ppd.h
index 101abc4302f4d67b5bb8ccc75439f6f38ccd3e00..196eab05c2688e1001f19e0fa90d455ceb475b6b 100644
--- a/include/configs/mx53ppd.h
+++ b/include/configs/mx53ppd.h
@@ -60,7 +60,6 @@
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	PPD_CONFIG_NFS \
 	"image=/boot/fitImage\0" \
-	"fdt_high=0xffffffff\0" \
 	"dev=mmc\0" \
 	"devnum=2\0" \
 	"rootdev=mmcblk0p\0" \
@@ -127,6 +126,8 @@
 
 #define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
 
+#define CONFIG_SYS_BOOTMAPSZ (256 << 20)     /* 256M */
+
 /* Physical Memory Map */
 #define PHYS_SDRAM_1			CSD0_BASE_ADDR
 #define PHYS_SDRAM_1_SIZE		(gd->bd->bi_dram[0].size)