[PATCH] ARM: dts: BCM5301X: SR400AC: set WAN MAC from nvram

[Rosen Penev <rosenp@gmail.com>]

The WAN MAC is offset by 1. Set in dts to avoid having to handle this in
userspace.

nvram size found from a random bootlog online.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 .../dts/broadcom/bcm4708-smartrg-sr400ac.dts   | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/broadcom/bcm4708-smartrg-sr400ac.dts b/arch/arm/boot/dts/broadcom/bcm4708-smartrg-sr400ac.dts
index b226bef3369c..03f4a6d37a67 100644
--- a/arch/arm/boot/dts/broadcom/bcm4708-smartrg-sr400ac.dts
+++ b/arch/arm/boot/dts/broadcom/bcm4708-smartrg-sr400ac.dts
@@ -25,6 +25,16 @@ memory@0 {
 		      <0x88000000 0x08000000>;
 	};
 
+	nvram@1eff0000 {
+		compatible = "brcm,nvram";
+		reg = <0x1eff0000 0x10000>;
+
+		et0macaddr: et0macaddr {
+			#nvmem-cell-cells = <1>;
+		};
+	};
+
+
 	leds {
 		compatible = "gpio-leds";
 
@@ -118,6 +128,11 @@ &spi_nor {
 	status = "okay";
 };
 
+&gmac0 {
+	nvmem-cells = <&et0macaddr 0>;
+	nvmem-cell-names = "mac-address";
+};
+
 &srab {
 	status = "okay";
 
@@ -140,6 +155,9 @@ port@3 {
 
 		port@4 {
 			label = "wan";
+
+			nvmem-cells = <&et0macaddr 1>;
+			nvmem-cell-names = "mac-address";
 		};
 
 		port@5 {
-- 
2.55.0