ARM: dts: sunxi: h3/h5: represent the mdio switch used by sun8i-h3-emac

Since dwmac-sun8i could use either an integrated PHY or an external PHY
(which could be at same MDIO address), we need to represent this selection
by a MDIO switch.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Gbp-Pq: Topic features/arm/dwmac-sun8i
Gbp-Pq: Name 0008-ARM-dts-sunxi-h3-h5-represent-the-mdio-switch-used-b.patch

diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index eb200622afacff5b4d02bd1b26a59da09312223f..6919a0544fe742941c881525b6f802e740e4685f 100644 (file)
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -408,11 +408,34 @@
                        mdio: mdio {
                                #address-cells = <1>;
                                #size-cells = <0>;
-                               int_mii_phy: ethernet-phy@1 {
-                                       compatible = "ethernet-phy-ieee802.3-c22";
+                               compatible = "snps,dwmac-mdio";
+                       };
+
+                       mdio-mux {
+                               compatible = "allwinner,sun8i-h3-mdio-mux";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+
+                               mdio-parent-bus = <&mdio>;
+                               /* Only one MDIO is usable at the time */
+                               internal_mdio: mdio@1 {
+                                       compatible = "allwinner,sun8i-h3-mdio-internal";
                                        reg = <1>;
-                                       clocks = <&ccu CLK_BUS_EPHY>;
-                                       resets = <&ccu RST_BUS_EPHY>;
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+
+                                       int_mii_phy: ethernet-phy@1 {
+                                               compatible = "ethernet-phy-ieee802.3-c22";
+                                               reg = <1>;
+                                               clocks = <&ccu CLK_BUS_EPHY>;
+                                               resets = <&ccu RST_BUS_EPHY>;
+                                       };
+                               };
+
+                               external_mdio: mdio@2 {
+                                       reg = <2>;
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
                                };
                        };
                };