arm64: dts: mt7622: add mt7531 dsa to mt7622-rfb1 board

Add mt7531 dsa to mt7622-rfb1 board for 5 giga Ethernet ports support.
mt7622 only supports 1 sgmii interface, so either gmac0 or gmac1 can be
configured as sgmii interface. In this patch, change to connect mt7622
gmac0 and mt7531 port6 through sgmii interface.

Signed-off-by: Landen Chao <landen.chao@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
index 0b4de62..08ad0ff 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
@@ -105,20 +105,71 @@
        pinctrl-0 = <&eth_pins>;
        status = "okay";
 
-       gmac1: mac@1 {
+       gmac0: mac@0 {
                compatible = "mediatek,eth-mac";
-               reg = <1>;
-               phy-handle = <&phy5>;
+               reg = <0>;
+               phy-mode = "2500base-x";
+
+               fixed-link {
+                       speed = <2500>;
+                       full-duplex;
+                       pause;
+               };
        };
 
        mdio-bus {
                #address-cells = <1>;
                #size-cells = <0>;
 
-               phy5: ethernet-phy@5 {
-                       reg = <5>;
-                       phy-mode = "sgmii";
+               switch@0 {
+                       compatible = "mediatek,mt7531";
+                       reg = <0>;
+                       reset-gpios = <&pio 54 0>;
+
+                       ports {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+
+                               port@0 {
+                                       reg = <0>;
+                                       label = "lan0";
+                               };
+
+                               port@1 {
+                                       reg = <1>;
+                                       label = "lan1";
+                               };
+
+                               port@2 {
+                                       reg = <2>;
+                                       label = "lan2";
+                               };
+
+                               port@3 {
+                                       reg = <3>;
+                                       label = "lan3";
+                               };
+
+                               port@4 {
+                                       reg = <4>;
+                                       label = "wan";
+                               };
+
+                               port@6 {
+                                       reg = <6>;
+                                       label = "cpu";
+                                       ethernet = <&gmac0>;
+                                       phy-mode = "2500base-x";
+
+                                       fixed-link {
+                                               speed = <2500>;
+                                               full-duplex;
+                                               pause;
+                                       };
+                               };
+                       };
                };
+
        };
 };