diff --git a/configs/tbs2910_defconfig b/configs/tbs2910_defconfig
index a14f9d4..d393975 100644
--- a/configs/tbs2910_defconfig
+++ b/configs/tbs2910_defconfig
@@ -8,6 +8,7 @@
 CONFIG_ENV_OFFSET=0x60000
 CONFIG_MX6Q=y
 CONFIG_TARGET_TBS2910=y
+CONFIG_SYS_MALLOC_LEN=0x8000000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="imx6q-tbs2910"
 CONFIG_PRE_CON_BUF_ADDR=0x7c000000