diff --git a/configs/sunxi_Gemei_G9_defconfig b/configs/sunxi_Gemei_G9_defconfig
index b161264..3fee7c2 100644
--- a/configs/sunxi_Gemei_G9_defconfig
+++ b/configs/sunxi_Gemei_G9_defconfig
@@ -13,5 +13,7 @@
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SPL_I2C=y
 CONFIG_SYS_I2C_MVTWSI=y
+CONFIG_SYS_I2C_SLAVE=0x7f
+CONFIG_SYS_I2C_SPEED=400000
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y