diff --git a/configs/imx8mp_rsb3720a1_4G_defconfig b/configs/imx8mp_rsb3720a1_4G_defconfig
index 9792519..9f067fc 100644
--- a/configs/imx8mp_rsb3720a1_4G_defconfig
+++ b/configs/imx8mp_rsb3720a1_4G_defconfig
@@ -56,6 +56,7 @@
 CONFIG_SYS_MAXARGS=64
 CONFIG_SYS_CBSIZE=2048
 CONFIG_SYS_PBSIZE=2074
+CONFIG_SYS_BOOTM_LEN=0x2000000
 CONFIG_CMD_BOOTEFI_SELFTEST=y
 CONFIG_CMD_ERASEENV=y
 CONFIG_CMD_NVEDIT_EFI=y