[PATCH] ramips: add support for Cudy WR1300 v4
Jan Brudna
jan.brudna at gmail.com
Tue May 12 14:19:46 PDT 2026
Hi Bas,
thanks for the suggestion. I agree that such a consolidation could
make sense, given how closely related the WR1300 hardware revisions
are.
However, I only have access to a WR1300 v4 unit. Since such a refactor
would also touch the existing v1 to v3 support, I would not feel
confident preparing it without being able to test those revisions
afterwards and verify that their current functionality remains
unchanged.
I also have rather limited experience with larger DTS refactors of
existing device support, so I preferred to keep this initial patch
focused on adding the v4 support while following the current upstream
structure with the existing shared v2/v3 .dtsi.
If someone with access to the older revisions would like to pursue
that cleanup, I would of course be happy to help with the v4-specific
details.
Best regards.
út 12. 5. 2026 v 22:59 odesílatel Bas Mevissen <abuse at basmevissen.nl> napsal:
>
> 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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