diff --git a/configs/evb-rk3229_defconfig b/configs/evb-rk3229_defconfig
index cf73afe..73015f0 100644
--- a/configs/evb-rk3229_defconfig
+++ b/configs/evb-rk3229_defconfig
@@ -31,7 +31,7 @@
 CONFIG_SPL_NO_BSS_LIMIT=y
 # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
 CONFIG_SPL_STACK_R=y
-CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x2000
+CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x100000
 CONFIG_SPL_OPTEE_IMAGE=y
 CONFIG_SYS_BOOTM_LEN=0x4000000
 CONFIG_CMD_GPT=y