Merge tag 'at91-dt-5.20-3' of git://git.kernel.org/pub/scm/linux/kern…

…el/git/at91/linux into arm/dt

AT91 DT for v5.20 #3

It contains updates for LAN966X devices as follows:
- clock gating support
- gpio restart and network switch for lan966x-pcb8291 board

* tag 'at91-dt-5.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: lan966x: Enable network driver on pcb8291
  ARM: dts: lan966x: Disable can0 on pcb8291
  ARM: dts: lan966x: Add gpio-restart
  ARM: dts: lan966x: add clock gating register

Link: https://lore.kernel.org/r/20220722152041.1752962-1-claudiu.beznea@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/lan966x-pcb8291.dts

@@ -4,6 +4,7 @@
  */
 /dts-v1/;
 #include "lan966x.dtsi"
+#include "dt-bindings/phy/phy-lan966x-serdes.h"
 
 / {
 	model = "Microchip EVB - LAN9662";
@@ -16,6 +17,12 @@
 	aliases {
 		serial0 = &usart3;
 	};
+
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
+		priority = <200>;
+	};
 };
 
 &gpio {
@@ -35,7 +42,7 @@
 &can0 {
 	pinctrl-0 = <&can0_b_pins>;
 	pinctrl-names = "default";
-	status = "okay";
+	status = "disabled"; /* Conflict with switch */
 };
 
 &flx3 {
@@ -49,6 +56,40 @@
 	};
 };
 
+&mdio1 {
+	status = "okay";
+};
+
+&phy0 {
+	status = "okay";
+};
+
+&phy1 {
+	status = "okay";
+};
+
+&port0 {
+	phy-handle = <&phy0>;
+	phy-mode = "gmii";
+	phys = <&serdes 0 CU(0)>;
+	status = "okay";
+};
+
+&port1 {
+	phy-handle = <&phy1>;
+	phy-mode = "gmii";
+	phys = <&serdes 1 CU(1)>;
+	status = "okay";
+};
+
+&serdes {
+	status = "okay";
+};
+
+&switch {
+	status = "okay";
+};
+
 &watchdog {
 	status = "okay";
 };

arch/arm/boot/dts/lan966x.dtsi

@@ -65,7 +65,7 @@
 		#clock-cells = <1>;
 		clocks = <&cpu_clk>, <&ddr_clk>, <&sys_clk>;
 		clock-names = "cpu", "ddr", "sys";
-		reg = <0xe00c00a8 0x38>;
+		reg = <0xe00c00a8 0x38>, <0xe00c02cc 0x4>;
 	};
 
 	timer {