diff --git a/configs/P1020RDB-PD_defconfig b/configs/P1020RDB-PD_defconfig
index 9687838..e1ae235 100644
--- a/configs/P1020RDB-PD_defconfig
+++ b/configs/P1020RDB-PD_defconfig
@@ -37,6 +37,7 @@
 CONFIG_ENV_IS_IN_FLASH=y
 CONFIG_ENV_ADDR=0xEFF20000
 CONFIG_DM=y
+CONFIG_DDR_CLK_FREQ=66666666
 CONFIG_DM_I2C=y
 CONFIG_SPL_SYS_I2C_LEGACY=y
 CONFIG_I2C_SET_DEFAULT_BUS_NUM=y