diff --git a/configs/chromebook_speedy_defconfig b/configs/chromebook_speedy_defconfig
index 624b8f8..aeaee38 100644
--- a/configs/chromebook_speedy_defconfig
+++ b/configs/chromebook_speedy_defconfig
@@ -62,6 +62,7 @@
 CONFIG_PWRSEQ=y
 CONFIG_MMC_DW=y
 CONFIG_MMC_DW_ROCKCHIP=y
+CONFIG_SF_DEFAULT_SPEED=20000000
 CONFIG_PINCTRL=y
 CONFIG_SPL_PINCTRL=y
 # CONFIG_SPL_PINCTRL_FULL is not set