clocks {
clk_periph: periph {
clock-frequency = <500000000>;
+--- a/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts
++++ b/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts
+@@ -24,6 +24,16 @@
+ 0x88000000 0x08000000>;
+ };
+
++ chipcommonA {
++ uart0: serial@0300 {
++ status = "okay";
++ };
++
++ uart1: serial@0400 {
++ status = "okay";
++ };
++ };
++
+ leds {
+ compatible = "gpio-leds";
+