arm64: dts: renesas: rcar-gen3: Add missing Ethernet PHY resets

Describe all Ethernet PHY reset GPIOs on R-Car Gen3 boards, to avoid
relying solely on boot loaders to bring PHYs out of reset.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/3e6fd765850e8ef0980d8e98bc5f2126538d626f.1631177442.git.geert+renesas@glider.be

arch/arm64/boot/dts/renesas/draak.dtsi

@@ -249,6 +249,7 @@ phy0: ethernet-phy@0 {
 		reg = <0>;
 		interrupt-parent = <&gpio5>;
 		interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio5 18 GPIO_ACTIVE_LOW>;
 		/*
 		 * TX clock internal delay mode is required for reliable
 		 * 1Gbps communication using the KSZ9031RNX phy present on

arch/arm64/boot/dts/renesas/r8a77970-eagle.dts

@@ -8,6 +8,7 @@
 
 /dts-v1/;
 #include "r8a77970.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Renesas Eagle board based on r8a77970";
@@ -98,6 +99,7 @@ phy0: ethernet-phy@0 {
 		reg = <0>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
 	};
 };
 

arch/arm64/boot/dts/renesas/r8a77970-v3msk.dts

@@ -8,6 +8,7 @@
 
 /dts-v1/;
 #include "r8a77970.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Renesas V3M Starter Kit board";
@@ -113,6 +114,7 @@ phy0: ethernet-phy@0 {
 		reg = <0>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
 	};
 };
 

arch/arm64/boot/dts/renesas/r8a77980-condor.dts

@@ -8,6 +8,7 @@
 
 /dts-v1/;
 #include "r8a77980.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Renesas Condor board based on r8a77980";
@@ -138,6 +139,7 @@ phy0: ethernet-phy@0 {
 		reg = <0>;
 		interrupt-parent = <&gpio4>;
 		interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
 	};
 };
 

arch/arm64/boot/dts/renesas/r8a77980-v3hsk.dts

@@ -8,6 +8,7 @@
 
 /dts-v1/;
 #include "r8a77980.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Renesas V3H Starter Kit board";
@@ -118,6 +119,7 @@ phy0: ethernet-phy@0 {
 		reg = <0>;
 		interrupt-parent = <&gpio4>;
 		interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
 	};
 };