Add the g12a mdio multiplexer which allows to connect to either
an external phy through the SoC pins or the internal 10/100 phy
Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 32 +++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
index fe0f73730525..6e9587aafb5d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
@@ -460,6 +460,38 @@
assigned-clock-rates = <100000000>;
#phy-cells = <1>;
};
+
+ eth_phy: mdio-multiplexer@4c000 {
+ compatible = "amlogic,g12a-mdio-mux";
+ reg = <0x0 0x4c000 0x0 0xa4>;
+ clocks = <&clkc CLKID_ETH_PHY>,
+ <&xtal>,
+ <&clkc CLKID_MPLL_5OM>;
+ clock-names = "pclk", "clkin0", "clkin1";
+ mdio-parent-bus = <&mdio0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ext_mdio: mdio@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ int_mdio: mdio@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ internal_ephy: ethernet_phy@8 {
+ compatible = "ethernet-phy-id0180.3301",
+ "ethernet-phy-ieee802.3-c22";
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <8>;
+ max-speed = <100>;
+ };
+ };
+ };
};
aobus: bus@ff800000 {
--
2.20.1
