diff --git a/configs/P5040DS_SECURE_BOOT_defconfig b/configs/P5040DS_SECURE_BOOT_defconfig
index 66c116f..2469443 100644
--- a/configs/P5040DS_SECURE_BOOT_defconfig
+++ b/configs/P5040DS_SECURE_BOOT_defconfig
@@ -32,6 +32,8 @@
 CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
 CONFIG_SYS_FLASH_CFI=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_GIGE=y