[openwrt/openwrt] ramips: add support for AsiaRF AP7621-004 Rev. 3

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/ae7fc18cf2686fbafffb5f8b78948f9e411fe907

commit ae7fc18cf2686fbafffb5f8b78948f9e411fe907
Author: Elwin Huang <s09289728096 at gmail.com>
AuthorDate: Fri Sep 5 09:56:29 2025 +0800

    ramips: add support for AsiaRF AP7621-004 Rev. 3
    
    Specification:
    
    - SoC           : MediaTek MT7621AT, dual-core 880 MHz MIPS CPU
    - RAM           : DDR3 512 MB (Micron MT41K256M16TW-107)
    - Flash         : SPI-NOR 16 MB (MACRONIX MX25L12835FM2I-10G)
    - Ethernet      : 5 port GbE Switch
        - LAN :
            3x RJ-45 Port
            1x PHD Connector (2x5 pin, pitch 2.0 mm)
        - WAN :
            1x RJ-45 Port
    - LED           : 8x LEDs
        1x Power (Blue)
        2x MiniPCIe (Orange)
        1x M.2 B Key (Red)
        4x Ethernet activity (White)
    - UART          : 1x4 pin header on PCB [J1]
        - arrangement : 3.3V, TX, RX, GND
        - settings    : 57600, 8n1
    - Button        : 2x (Reset, WPS)
    - USB           : 1x USB 2.0
    - Socket       :
        2x MiniPCIe (PCIe Gen2)
        1x M.2 B key (PCIe Gen2 + USB 3.0)
        1x MicroSD
        1x SIM Card
    - Power         : 12V DC, 1A
    
    MAC addresses :
        LAN:        00:0A:52:xx:xx:xx   (Factory, 0xe000)
        WAN:        00:0A:52:xx:xx:xx   (Factory, 0xe006)
    
    Flash instruction through LuCI:
    
    This device is flashed OpenWRT base firmware with this target.
    The LuCI webpage is integrated in default for upgrading.
    
    Flash instruction through u-boot:
    
    1. Prepare the TFTP server on PC.
    2. Connect uart to PC, select "2. Upgrade firmware" in u-boot menu.
    3. Select "0 - TFTP client (Default)", input client IP, server IP, flashed bin file path
    4. Wait about 60 seconds to complete flashing
    
    Signed-off-by: Elwin Huang <s09289728096 at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/19944
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 .../boot/uboot-tools/uboot-envtools/files/ramips   |   1 +
 .../ramips/dts/mt7621_asiarf_ap7621-004-v3.dts     | 138 +++++++++++++++++++++
 target/linux/ramips/image/mt7621.mk                |  11 ++
 3 files changed, 150 insertions(+)

diff --git a/package/boot/uboot-tools/uboot-envtools/files/ramips b/package/boot/uboot-tools/uboot-envtools/files/ramips
index 3ec3da6988..db551d1860 100644
--- a/package/boot/uboot-tools/uboot-envtools/files/ramips
+++ b/package/boot/uboot-tools/uboot-envtools/files/ramips
@@ -30,6 +30,7 @@ alfa-network,ax1800rm|\
 allnet,all0256n-4m|\
 allnet,all0256n-8m|\
 allnet,all5002|\
+asiarf,ap7621-004-v3|\
 yuncore,ax820)
 	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x10000" "0x10000"
 	;;
diff --git a/target/linux/ramips/dts/mt7621_asiarf_ap7621-004-v3.dts b/target/linux/ramips/dts/mt7621_asiarf_ap7621-004-v3.dts
new file mode 100755
index 0000000000..376c3461f4
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_asiarf_ap7621-004-v3.dts
@@ -0,0 +1,138 @@
+// 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>
+/ {
+	compatible = "asiarf,ap7621-004-v3", "mediatek,mt7621-soc";
+	model = "AsiaRF AP7621-004 v3";
+
+	keys {
+		compatible = "gpio-keys";
+		
+		wps {
+			label = "wps";
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+};
+
+&sdhci {
+	status = "okay";
+	non-removable;
+};
+
+&spi0 {
+	status = "okay";
+
+	flash at 0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+
+		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>;
+			};
+
+			partition at 40000 {
+				label = "factory";
+				reg = <0x40000 0x10000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					macaddr_factory_e000: macaddr at e000 {
+						reg = <0xe000 0x6>;
+					};
+
+					macaddr_factory_e006: macaddr at e006 {
+						reg = <0xe006 0x6>;
+					};
+				};
+			};
+
+			partition at 50000 {
+				label = "firmware";
+				reg = <0x50000 0xfb0000>;
+				compatible = "denx,uimage";
+			};
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&ethernet {
+	pinctrl-0 = <&mdio_pins>, <&rgmii1_pins>;
+};
+
+&gmac0 {
+	status = "okay";
+
+	nvmem-cell-names = "mac-address";
+	nvmem-cells = <&macaddr_factory_e000>;
+};
+
+&switch0 {
+	ports {
+		port at 0 {
+			status = "okay";
+			label = "wan";
+			nvmem-cell-names = "mac-address";
+			nvmem-cells = <&macaddr_factory_e006>;
+		};
+
+		port at 1 {
+			status = "okay";
+			label = "lan1";
+		};
+
+		port at 2 {
+			status = "okay";
+			label = "lan2";
+		};
+
+		port at 3 {
+			status = "okay";
+			label = "lan3";
+		};
+
+		port at 4 {
+			status = "okay";
+			label = "lan4";
+		};
+	};
+	
+};
+
+&state_default {
+	gpio {
+		groups = "wdt", "jtag";
+		function = "gpio";
+	};
+};
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 4c9947a518..720b90cc50 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -366,6 +366,17 @@ define Device/asiarf_ap7621-001
 endef
 TARGET_DEVICES += asiarf_ap7621-001
 
+define Device/asiarf_ap7621-004-v3
+  $(Device/dsa-migration)
+  $(Device/uimage-lzma-loader)
+  DEVICE_VENDOR := AsiaRF
+  DEVICE_MODEL := AP7621-004
+  DEVICE_VARIANT := v3
+  IMAGE_SIZE := 16000k
+  DEVICE_PACKAGES := kmod-mmc-mtk kmod-usb3
+endef
+TARGET_DEVICES += asiarf_ap7621-004-v3
+
 define Device/asiarf_ap7621-nv1
   $(Device/dsa-migration)
   $(Device/uimage-lzma-loader)