linux-kernel - [PATCH] mips: dts: ralink: Add support for TP-Link HC220 G5 v1 board.

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Date:   Tue,  9 May 2023 21:01:25 +0100
From:   Liviu Dudau <liviu@...au.co.uk>
To:     Arınç ÜNAL <arinc.unal@...nc9.com>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Paul Burton <paulburton@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sergio Paracuellos <sergio.paracuellos@...il.com>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Liviu Dudau <liviu@...au.co.uk>
Subject: [PATCH] mips: dts: ralink: Add support for TP-Link HC220 G5 v1 board.

This WiFi AP is based on a MT7621 SoC with 128MiB RAM, 128MiB NAND,
a MT7603 2.4GHz WiFi and a MT7663 5GHz WiFi chips integrated on the board,
connected to the main SoC over PCIe.

The GMAC1 on the SoC is connected to PHY0 on the GSW and can be used to
improve routing bandwidth.

The device uses NMBM over NAND, which is not currently supported in the
mainline, so NAND node is skipped in this revision.

Signed-off-by: Liviu Dudau <liviu@...au.co.uk>
---
 arch/mips/boot/dts/ralink/Makefile            |   3 +-
 .../dts/ralink/mt7621-tplink-hc220_g5.dts     | 126 ++++++++++++++++++
 2 files changed, 128 insertions(+), 1 deletion(-)
 create mode 100644 arch/mips/boot/dts/ralink/mt7621-tplink-hc220_g5.dts

diff --git a/arch/mips/boot/dts/ralink/Makefile b/arch/mips/boot/dts/ralink/Makefile
index 11732b8c8163a..c57a2b40876b4 100644
--- a/arch/mips/boot/dts/ralink/Makefile
+++ b/arch/mips/boot/dts/ralink/Makefile
@@ -8,6 +8,7 @@ dtb-$(CONFIG_DTB_VOCORE2)	+= vocore2.dtb
 
 dtb-$(CONFIG_SOC_MT7621) += \
 	mt7621-gnubee-gb-pc1.dtb \
-	mt7621-gnubee-gb-pc2.dtb
+	mt7621-gnubee-gb-pc2.dtb \
+	mt7621-tplink-hc220_g5.dtb
 
 obj-$(CONFIG_BUILTIN_DTB)	+= $(addsuffix .o, $(dtb-y))
diff --git a/arch/mips/boot/dts/ralink/mt7621-tplink-hc220_g5.dts b/arch/mips/boot/dts/ralink/mt7621-tplink-hc220_g5.dts
new file mode 100644
index 0000000000000..83d15711907d0
--- /dev/null
+++ b/arch/mips/boot/dts/ralink/mt7621-tplink-hc220_g5.dts
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	compatible = "tplink,hc220-g5", "mediatek,mt7621-soc";
+	model = "TP-Link HC220 G5 v1.0";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x8000000>;
+	};
+
+	chosen {
+		/* bootargs = "earlycon=uart8260,mmio32,0x1e000c00 root=/dev/ram0 kgdboc=ttyS0,115200 ip=192.168.88.1:192.168.88.2:::hc220:eth1:none kgdbcon console=ttyS0,115200"; */
+		/* bootargs = "console=ttyS0,115200 earlycon=uart8260,mmio32,0x1e000c00 root=/dev/ram0"; */
+		bootargs = "console=ttyS0,115200 root=/dev/nfs ip=192.168.88.2:192.168.88.5::255.255.255.0:hc220_g5:eth1:none nfsroot=192.168.88.5:/mips,vers=4,sec=sys ro rootwait";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		key-reset {
+			label = "reset";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		key-wps {
+			label = "wps";
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		red {
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_FAULT;
+			gpios = <&gpio 13 GPIO_ACTIVE_HIGH>;
+		};
+
+		green {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_POWER;
+			gpios = <&gpio 14 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+
+		blue {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_WPS;
+			gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	resetc: reset-controller {
+		compatible = "ralink,rt2880-reset";
+		#reset-cells = <1>;
+	};
+
+	mtd {
+		compatible = "mediatek,mt7622-nfc";
+	};
+};
+
+&i2c {
+	status = "okay";
+};
+
+&pcie {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+	};
+};
+
+/* gmac1 connected to MT7530's phy0 */
+&gmac1 {
+	status = "okay";
+	phy-handle = <&ethphy0>;
+};
+
+&mdio {
+	/* MT7530's phy0 */
+	ethphy0: ethernet-phy@0 {
+		reg = <0>;
+		phy-mode = "rgmii";
+	};
+};
+
+&switch0 {
+	/* #gpio-cells = <2>;
+	gpio-controller; */
+
+	ports {
+		/* phy0 is muxed to gmac1 */
+		/delete-node/ port@0;
+
+		port@1 {
+			status = "okay";
+			label = "lan1";
+		};
+
+		port@2 {
+			status = "okay";
+			label = "wan";
+		};
+	};
+};
-- 
2.40.0