[PATCH v2] ARM: sunxi: dt: add EMAC aliases

[Emilio López]

U-Boot uses the ethernet0 alias to locate the right node to fill in
the MAC address of the first ethernet interface. This patch adds the
alias on all the sunxi SoCs with EMAC. In this way, people using
ethernet in U-Boot (eg, for tftp) can keep a consistent address on both
U-Boot and Linux with no additional effort.

Signed-off-by: Emilio López <emilio at elopez.com.ar>
---

v1->v2:
   add to dtsi instead of dts as suggested by Maxime; it's easier to 
   maintain on the long run.

 arch/arm/boot/dts/sun4i-a10.dtsi  | 4 ++++
 arch/arm/boot/dts/sun5i-a10s.dtsi | 4 ++++
 arch/arm/boot/dts/sun7i-a20.dtsi  | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 09e7b43..23374da 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -15,6 +15,10 @@
 / {
 	interrupt-parent = <&intc>;
 
+	aliases {
+		ethernet0 = &emac;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 9326b64..e95ab43 100644
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -16,6 +16,10 @@
 / {
 	interrupt-parent = <&intc>;
 
+	aliases {
+		ethernet0 = &emac;
+	};
+
 	cpus {
 		cpu at 0 {
 			compatible = "arm,cortex-a8";
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index c645a0f..6bea2b84 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -16,6 +16,10 @@
 / {
 	interrupt-parent = <&gic>;
 
+	aliases {
+		ethernet0 = &emac;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
-- 
1.8.4.2