diff --git a/configs/P1020RDB-PD_SDCARD_defconfig b/configs/P1020RDB-PD_SDCARD_defconfig
index 2df4d48..3f663a1 100644
--- a/configs/P1020RDB-PD_SDCARD_defconfig
+++ b/configs/P1020RDB-PD_SDCARD_defconfig
@@ -4,6 +4,7 @@
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_ENV_SIZE=0x2000
 CONFIG_ENV_OFFSET=0x0
+CONFIG_SYS_MALLOC_LEN=0x100000
 CONFIG_DEFAULT_DEVICE_TREE="p1020rdb-pd"
 CONFIG_SPL_TEXT_BASE=0xf8f81000
 CONFIG_SPL_MMC_SUPPORT=y