[openwrt/openwrt] ramips: add support for Cudy R700

LEDE Commits lede-commits at lists.infradead.org
Thu Dec 11 16:24:29 PST 2025 

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-24.10:
https://git.openwrt.org/4a3409f628e2aebabac02c81750b25373c22d992

commit 4a3409f628e2aebabac02c81750b25373c22d992
Author: David DeGraw <degraw at fastmail.com>
AuthorDate: Fri Apr 18 11:55:34 2025 -0600

    ramips: add support for Cudy R700
    
    This is the same hardware as the Cudy WR2100 that's
    had support for some time now, just without the WLAN
    hardware.
    
    This PR is mostly copied from the commit that added
    support for the WR2100, here: 3501db9
    
    Specifications:
    SoC: MT7621
    CPU: 880 MHz
    Flash: 16 MiB
    RAM: 128 MiB
    Ethernet: 5x Gbit ports
    
    Installation:
    There are two known options:
    
    The Luci-based UI.
    Press and hold the reset button during power up.
    The router will request 'recovery.bin' from a TFTP server at
    192.168.1.88.
    
    Both options require a signed firmware binary.
    A signed firmware can be found in GitHub PR #18532.
    
    R4 & R5 need to be shorted (0-100Ω) for the UART to work.
    
    Link: https://github.com/openwrt/openwrt/pull/18532
    
    Signed-off-by: David DeGraw <degraw at fastmail.com>
    (cherry picked from commit 75403dd1d05bea1b65349ebb9f8b7deb40b9c802)
    Link: https://github.com/openwrt/openwrt/pull/21068
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 target/linux/ramips/dts/mt7621_cudy_r700.dts       | 203 +++++++++++++++++++++
 target/linux/ramips/image/mt7621.mk                |  10 +
 .../ramips/mt7621/base-files/etc/board.d/01_leds   |   1 +
 3 files changed, 214 insertions(+)

diff --git a/target/linux/ramips/dts/mt7621_cudy_r700.dts b/target/linux/ramips/dts/mt7621_cudy_r700.dts
new file mode 100644
index 0000000000..6d1c1ec004
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_cudy_r700.dts
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	compatible = "cudy,r700", "mediatek,mt7621-soc";
+	model = "Cudy R700";
+
+	aliases {
+		led-boot = &led_internet_blue;
+		led-failsafe = &led_internet_blue;
+		led-running = &led_internet_blue;
+		led-upgrade = &led_internet_blue;
+		label-mac-device = &gmac0;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_internet_blue: internet_blue {
+			label = "blue:internet";
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+		};
+
+		internet_red {
+			label = "red:internet";
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+		};
+
+		wan {
+			function = LED_FUNCTION_WAN;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1 {
+			label = "green:lan1";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2 {
+			label = "green:lan2";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3 {
+			label = "green:lan3";
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4 {
+			label = "green:lan4";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&gmac0 {
+	nvmem-cells = <&macaddr_bdinfo_de00 0>;
+	nvmem-cell-names = "mac-address";
+};
+
+&spi0 {
+	status = "okay";
+
+	flash at 0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition at 0 {
+				label = "u-boot";
+				reg = <0x0 0x30000>;
+				read-only;
+			};
+
+			partition at 30000 {
+				label = "u-boot-env";
+				reg = <0x30000 0x10000>;
+				read-only;
+			};
+
+			partition at 40000 {
+				label = "factory";
+				reg = <0x40000 0x10000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					eeprom_factory_0: eeprom at 0 {
+						reg = <0x0 0x400>;
+					};
+
+					eeprom_factory_8000: eeprom at 8000 {
+						reg = <0x8000 0x4da8>;
+					};
+				};
+			};
+
+			partition at 50000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x50000 0xf80000>;
+			};
+
+			partition at fd0000 {
+				label = "debug";
+				reg = <0xfd0000 0x10000>;
+				read-only;
+			};
+
+			partition at fe0000 {
+				label = "backup";
+				reg = <0xfe0000 0x10000>;
+				read-only;
+			};
+
+			partition at ff0000 {
+				label = "bdinfo";
+				reg = <0xff0000 0x10000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					macaddr_bdinfo_de00: macaddr at de00 {
+						compatible = "mac-base";
+						reg = <0xde00 0x6>;
+						#nvmem-cell-cells = <1>;
+					};
+				};
+			};
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "i2c", "jtag", "uart3", "wdt";
+		function = "gpio";
+	};
+};
+
+&gmac1 {
+	status = "okay";
+	label = "wan";
+	phy-handle = <&ethphy4>;
+
+	nvmem-cells = <&macaddr_bdinfo_de00 1>;
+	nvmem-cell-names = "mac-address";
+};
+
+&switch0 {
+	ports {
+		port at 0 {
+			status = "okay";
+			label = "lan1";
+		};
+
+		port at 1 {
+			status = "okay";
+			label = "lan2";
+		};
+
+		port at 2 {
+			status = "okay";
+			label = "lan3";
+		};
+
+		port at 3 {
+			status = "okay";
+			label = "lan4";
+		};
+	};
+};
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 83b8767622..31bdb40b26 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -795,6 +795,16 @@ define Device/cudy_wr2100
 endef
 TARGET_DEVICES += cudy_wr2100
 
+define Device/cudy_r700
+  $(Device/dsa-migration)
+  DEVICE_VENDOR := Cudy
+  DEVICE_MODEL := R700
+  IMAGE_SIZE := 15872k
+  UIMAGE_NAME := R29
+  DEVICE_PACKAGES := -uboot-envtools
+endef
+TARGET_DEVICES += cudy_r700
+
 define Device/cudy_x6-v1
   $(Device/dsa-migration)
   IMAGE_SIZE := 32256k
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 94f36c1f6e..4c4e7a2f42 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
@@ -66,6 +66,7 @@ genexis,pulse-ex400|\
 netis,n6)
 	ucidef_set_led_netdev "wan" "wan" "green:wan" "wan" "link tx rx"
 	;;
+cudy,r700|\
 cudy,wr2100)
 	ucidef_set_led_netdev "lan1" "lan1" "green:lan1" "lan1"
 	ucidef_set_led_netdev "lan2" "lan2" "green:lan2" "lan2"

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