diff --git a/configs/P1021RDB-PC_36BIT_NAND_defconfig b/configs/P1021RDB-PC_36BIT_NAND_defconfig
index d03cfc0..c0524e7 100644
--- a/configs/P1021RDB-PC_36BIT_NAND_defconfig
+++ b/configs/P1021RDB-PC_36BIT_NAND_defconfig
@@ -51,6 +51,8 @@
 CONFIG_SYS_FLASH_CFI=y
 CONFIG_NAND=y
 CONFIG_SPI_FLASH=y
+CONFIG_SF_DEFAULT_MODE=0
+CONFIG_SF_DEFAULT_SPEED=10000000
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_PHY_MARVELL=y
 CONFIG_PHY_GIGE=y