diff --git a/configs/puma-rk3399_defconfig b/configs/puma-rk3399_defconfig
index 4591cc2..18705ed 100644
--- a/configs/puma-rk3399_defconfig
+++ b/configs/puma-rk3399_defconfig
@@ -6,6 +6,7 @@
 CONFIG_SYS_MALLOC_F_LEN=0x4000
 CONFIG_ROCKCHIP_RK3399=y
 CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0
+CONFIG_ROCKCHIP_BOOT_MODE_REG=0x0
 CONFIG_TARGET_PUMA_RK3399=y
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
 CONFIG_SPL_SPI_SUPPORT=y