diff --git a/configs/sandbox_noinst_defconfig b/configs/sandbox_noinst_defconfig
index d39e54f..908155b 100644
--- a/configs/sandbox_noinst_defconfig
+++ b/configs/sandbox_noinst_defconfig
@@ -32,6 +32,12 @@
 CONFIG_SPL_NO_BSS_LIMIT=y
 CONFIG_HANDOFF=y
 CONFIG_SPL_BOARD_INIT=y
+CONFIG_SPL_LEGACY_IMAGE_FORMAT=y
+CONFIG_SPL_LOAD_IMX_CONTAINER=y
+CONFIG_SPL_SYS_MALLOC=y
+CONFIG_SPL_HAS_CUSTOM_MALLOC_START=y
+CONFIG_SPL_CUSTOM_SYS_MALLOC_ADDR=0xa000000
+CONFIG_SPL_SYS_MALLOC_SIZE=0x4000000
 CONFIG_SPL_ENV_SUPPORT=y
 CONFIG_SPL_I2C=y
 CONFIG_SPL_RTC=y
diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig
index 4a67af2..b578cc8 100644
--- a/configs/sandbox_spl_defconfig
+++ b/configs/sandbox_spl_defconfig
@@ -32,6 +32,12 @@
 CONFIG_SPL_NO_BSS_LIMIT=y
 CONFIG_HANDOFF=y
 CONFIG_SPL_BOARD_INIT=y
+CONFIG_SPL_LEGACY_IMAGE_FORMAT=y
+CONFIG_SPL_LOAD_IMX_CONTAINER=y
+CONFIG_SPL_SYS_MALLOC=y
+CONFIG_SPL_HAS_CUSTOM_MALLOC_START=y
+CONFIG_SPL_CUSTOM_SYS_MALLOC_ADDR=0xa000000
+CONFIG_SPL_SYS_MALLOC_SIZE=0x4000000
 CONFIG_SPL_ENV_SUPPORT=y
 CONFIG_SPL_FPGA=y
 CONFIG_SPL_I2C=y