[PATCH] ramips: add support for Cudy WR1300 v4

[Jan Brudna]

Cudy WR1300 v4 is a MT7621 based dual-band router.

Hardware:
- SoC: MediaTek MT7621
- RAM: 128 MiB
- Flash: 16 MiB SPI NOR
- WiFi 2.4 GHz: MediaTek MT7603E
- WiFi 5 GHz: MediaTek MT7663E
- Ethernet: 5x 10/100/1000 Mbps
- Buttons: Reset, WPS
- LEDs: System, Internet, WAN, LAN1-4, WiFi 2.4 GHz, WiFi 5 GHz

The v4 hardware differs from v3 in GPIO assignments for LEDs and
buttons. WiFi LEDs are connected to MT7621 GPIO5/GPIO6 and require
the uart3 pin group to be muxed as GPIO.

Tested on retail Cudy WR1300 v4:
- sysupgrade image boots
- WAN and LAN1-4
- 2.4 GHz and 5 GHz WiFi
- Reset and WPS button events
- System, Internet, WAN, LAN1-4 and WiFi LEDs

Signed-off-by: Jan Brudna <jan.brudna at gmail.com>
---
 .../ramips/dts/mt7621_cudy_wr1300-v4.dts      | 111 ++++++++++++++++++
 target/linux/ramips/image/mt7621.mk           |  12 ++
 .../mt7621/base-files/etc/board.d/01_leds     |   9 ++
 3 files changed, 132 insertions(+)
 create mode 100644 target/linux/ramips/dts/mt7621_cudy_wr1300-v4.dts

diff --git a/target/linux/ramips/dts/mt7621_cudy_wr1300-v4.dts b/target/linux/ramips/dts/mt7621_cudy_wr1300-v4.dts
new file mode 100644
index 0000000000..0f16d5142d
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_cudy_wr1300-v4.dts
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621_cudy_wr1300-v2v3.dtsi"
+
+/ {
+	compatible = "cudy,wr1300-v4", "mediatek,mt7621-soc";
+	model = "Cudy WR1300 v4";
+
+	/delete-node/ leds;
+	/delete-node/ keys;
+
+	aliases {
+		led-boot = &led_sys;
+		led-failsafe = &led_sys;
+		led-running = &led_sys;
+		led-upgrade = &led_sys;
+		label-mac-device = &gmac0;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wps {
+			label = "wps";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_sys: sys {
+			label = "green:sys";
+			gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
+		};
+
+		internet {
+			label = "green:internet";
+			gpios = <&gpio 9 GPIO_ACTIVE_HIGH>;
+		};
+
+		lan4 {
+			label = "green:lan4";
+			gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
+		};
+
+		lan3 {
+			label = "green:lan3";
+			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2 {
+			label = "green:lan2";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1 {
+			label = "green:lan1";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		wan {
+			label = "green:wan";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan2g {
+			label = "green:wlan2g";
+			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan5g {
+			label = "green:wlan5g";
+			gpios = <&gpio 5 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&pcie0 {
+	wifi at 0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		nvmem-cells = <&eeprom_factory_0>, <&macaddr_bdinfo_de00 0>;
+		nvmem-cell-names = "eeprom", "mac-address";
+		ieee80211-freq-limit = <2400000 2500000>;
+	};
+};
+
+&pcie1 {
+	wifi at 0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		nvmem-cells = <&eeprom_factory_8000>, <&macaddr_bdinfo_de00 2>;
+		nvmem-cell-names = "eeprom", "mac-address";
+		ieee80211-freq-limit = <5000000 6000000>;
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "wdt", "i2c", "jtag", "uart3";
+		function = "gpio";
+	};
+};
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index cd595e72c4..76e2d6b43a 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -821,6 +821,18 @@ define Device/cudy_wr1300-v3
 endef
 TARGET_DEVICES += cudy_wr1300-v3
 
+define Device/cudy_wr1300-v4
+  $(Device/dsa-migration)
+  IMAGE_SIZE := 15872k
+  DEVICE_VENDOR := Cudy
+  DEVICE_MODEL := WR1300
+  DEVICE_VARIANT := v4
+  DEVICE_PACKAGES := kmod-mt7603 kmod-mt7615e kmod-mt7663-firmware-ap \
+	-uboot-envtools
+  SUPPORTED_DEVICES += cudy,wr1300 R30
+endef
+TARGET_DEVICES += cudy_wr1300-v4
+
 define Device/cudy_wr2100
   $(Device/dsa-migration)
   DEVICE_VENDOR := Cudy
diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index eb4de3e03d..efede4b59e 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -7,6 +7,15 @@ board=$(board_name)
 board_config_update
 
 case $board in
+cudy,wr1300-v4)
+	ucidef_set_led_netdev "wan" "WAN" "green:wan" "wan" "link tx rx"
+	ucidef_set_led_netdev "lan1" "LAN1" "green:lan1" "lan1" "link tx rx"
+	ucidef_set_led_netdev "lan2" "LAN2" "green:lan2" "lan2" "link tx rx"
+	ucidef_set_led_netdev "lan3" "LAN3" "green:lan3" "lan3" "link tx rx"
+	ucidef_set_led_netdev "lan4" "LAN4" "green:lan4" "lan4" "link tx rx"
+	ucidef_set_led_wlan "wlan2g" "WiFi 2.4GHz" "green:wlan2g" "phy0tpt"
+	ucidef_set_led_wlan "wlan5g" "WiFi 5GHz" "green:wlan5g" "phy1tpt"
+	;;
 alfa-network,ax1800rm)
 	ucidef_set_led_netdev "lan1" "lan1" "green:lan1" "lan1"
 	ucidef_set_led_netdev "lan2" "lan2" "green:lan2" "lan2"
-- 
2.34.1