diff --git a/configs/T1023RDB_NAND_defconfig b/configs/T1023RDB_NAND_defconfig
index 22feb6f..767458e 100644
--- a/configs/T1023RDB_NAND_defconfig
+++ b/configs/T1023RDB_NAND_defconfig
@@ -49,6 +49,8 @@
 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_PHYLIB=y
 CONFIG_PHY_AQUANTIA=y