From a32def781f5a840697e503f1da29de455a875bbc Mon Sep 17 00:00:00 2001
From: Aleksander Jan Bajkowski <olek2@wp.pl>
Date: Sun, 12 Mar 2023 10:59:21 +0100
Subject: [PATCH] lantiq: xway: add phy reset pin to AVM Fritz!Box 7320

This commit adds the PHY reset gpio for the LAN1 port to the dts.
According to the GPL sources, gpios 34 and 36 are used on the AVM
FritzBox 7320 and 7330. The second port is unsupported.

The gpio assignment has been verified on the FritzBox 7330.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
---
 .../mips/boot/dts/lantiq/ar9_avm_fritz7320.dts  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts b/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts
index 44b8a18dae9..cd7b29ca6d1 100644
--- a/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts
+++ b/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/ar9_avm_fritz7320.dts
@@ -98,9 +98,20 @@
 
 &gsw {
 	phy-mode = "mii";
+	phy-handle = <&phy0>;
 	nvmem-cells = <&macaddr_ath9k_cal_a91>;
 	nvmem-cell-names = "mac-address";
 	mac-address-increment = <(-2)>;
+
+	mdio-bus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+			reset-gpios = <&gpio 36 GPIO_ACTIVE_LOW>;
+		};
+	};
 };
 
 &gpio {
@@ -108,6 +119,12 @@
 	pinctrl-0 = <&state_default>;
 
 	state_default: pinmux {
+		phy-rst {
+			lantiq,pins = "io36";
+			lantiq,pull = <0>;
+			lantiq,open-drain;
+			lantiq,output = <1>;
+		};
 		usb0_vbus {
 			lantiq,pins = "io50";
 			lantiq,pull = <0>;