diff --git a/configs/jesurun_q5_defconfig b/configs/jesurun_q5_defconfig
index 6a417ee..0ff666b 100644
--- a/configs/jesurun_q5_defconfig
+++ b/configs/jesurun_q5_defconfig
@@ -10,6 +10,8 @@
 # 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_MII=y
 CONFIG_SUN4I_EMAC=y
 CONFIG_USB_EHCI_HCD=y