[PATCH] ramips: add support for Cudy WR1300 v4
Bas Mevissen
abuse at basmevissen.nl
Tue May 12 13:59:11 PDT 2026
On Tue, 2026-05-12 at 15:37 +0200, Jan Brudna wrote:
> 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.
>
All HW versions are quite similar. Wouldn't it make sense to write a
single .dtsi file with all variations in #ifdef ... #endif?
Then you simply write:
wr1300_v1.dts:
#define WR1300_V1
#include "wr1300.dtsi"
(and so on).
> 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"
(as alternative) wouldn't it be better to rename this file to
mt7621_cudy_wr1300-v2v3v4.dtsi (or ...v2-v4...) or even better just
mt7621_cudy_wr1300-common.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"
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