diff --git a/configs/deneb_defconfig b/configs/deneb_defconfig
index 6358f36..379828e 100644
--- a/configs/deneb_defconfig
+++ b/configs/deneb_defconfig
@@ -8,6 +8,7 @@
 CONFIG_NR_DRAM_BANKS=3
 CONFIG_ENV_SIZE=0x2000
 CONFIG_ENV_OFFSET=0x0
+CONFIG_SYS_MALLOC_LEN=0x2800000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="imx8-deneb"
 CONFIG_SPL_TEXT_BASE=0x100000