From c3b8108a2be4df3a114ac6d964c664dffd2d5bbf Mon Sep 17 00:00:00 2001 From: Olgun Demir Date: Sun, 20 Apr 2025 07:04:33 +0200 Subject: [PATCH] ramips: Add support for Xiaomi MiWiFi 3A The Xiaomi MiWiFi 3A wireless router has a similar system architecture as the Xiaomi Mi 4A router, which is already officially supported by OpenWrt. Product website: https://www.mi.com/miwifi3a Device specification -------------------- SoC: MT7628AN MIPS_24KEc @ 580 MHz 2.4G-bgn 2x2 WiFi: MT7612EN 5G-an, ac 80 MHz 2T2R Flash: 16 MB DRAM: 64 MB Switch: MT7628AN (integrated in SoC) Ethernet: 1 x 10 /100 Mbps USB: None Antennas: 2 x 2,4 GHz and 2 x 5 GHz (all are external and non-detachable) LEDs: blue/red/amber Buttons: Reset Serial: 115200,8n1 MAC addresses as verified by OEM firmware: ------------------------------------------ use address source LAN *:DD factory 0x28 WAN *:DD factory 0x28 2g *:DE factory 0x4 5g *:DF factory 0x8004 OEM firmware uses VLAN's to create the network interface for WAN and LAN. Bootloader info: ---------------- The stock bootloader uses a "Dual ROM Partition System". OS1 is a deep copy of OS2. The bootloader starts OS2 by default. To force start OS1 it is needed to set "flag_try_sys2_failed=1". How to install: --------------- 1- Use OpenWRTInvasion to gain Telnet, SSH and FTP access: https://github.com/acecilia/OpenWRTInvasion [IP: 192.168.31.1 | Username: root | Password: root | FTP-Port: 21] 2- Connect to router using telnet or ssh. 3- Backup all partitions. Use command "dd if=/dev/mtd0 of=/tmp/mtd0". Copy /tmp/mtd0 to computer using ftp. 4- Copy openwrt-ramips-mt76x8-xiaomi_miwifi-3a-squashfs-sysupgrade.bin to /tmp in router using ftp. 5- Enable UART access and change start image to OS1. nvram set uart_en=1 nvram set flag_last_success=1 nvram set boot_wait=on nvram set flag_try_sys2_failed=1 nvram commit 6- Erase OS1 & OS2 and install OpenWrt mtd erase OS1 mtd erase OS2 mtd -r write /tmp/openwrt-ramips-mt76x8-xiaomi_miwifi-3a-squashfs-sysupgrade.bin OS1 Credits: -------- This PR is based on the work of Zehao Zhang (Github: @ZZH-Finalize) that he had published in the PR: #15698 Signed-off-by: Olgun Demir Link: https://github.com/openwrt/openwrt/pull/18427 Signed-off-by: Hauke Mehrtens --- .../uboot-tools/uboot-envtools/files/ramips | 1 + .../ramips/dts/mt7628an_xiaomi_miwifi-3a.dts | 190 ++++++++++++++++++ target/linux/ramips/image/mt76x8.mk | 8 + .../mt76x8/base-files/etc/board.d/02_network | 4 + .../mt76x8/base-files/etc/init.d/bootcount | 1 + 5 files changed, 204 insertions(+) create mode 100644 target/linux/ramips/dts/mt7628an_xiaomi_miwifi-3a.dts mode change 100755 => 100644 target/linux/ramips/mt76x8/base-files/etc/init.d/bootcount diff --git a/package/boot/uboot-tools/uboot-envtools/files/ramips b/package/boot/uboot-tools/uboot-envtools/files/ramips index 34d5b5015e..02e4d30ae6 100644 --- a/package/boot/uboot-tools/uboot-envtools/files/ramips +++ b/package/boot/uboot-tools/uboot-envtools/files/ramips @@ -63,6 +63,7 @@ kroks,kndrt31r19|\ mediatek,linkit-smart-7688|\ samknows,whitebox-v8|\ xiaomi,mi-router-4c|\ +xiaomi,miwifi-3a|\ xiaomi,miwifi-nano|\ zbtlink,zbt-wg2626|\ zte,mf283plus) diff --git a/target/linux/ramips/dts/mt7628an_xiaomi_miwifi-3a.dts b/target/linux/ramips/dts/mt7628an_xiaomi_miwifi-3a.dts new file mode 100644 index 0000000000..3a48410fa7 --- /dev/null +++ b/target/linux/ramips/dts/mt7628an_xiaomi_miwifi-3a.dts @@ -0,0 +1,190 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT + +#include "mt7628an.dtsi" + +#include +#include +#include + +/ { + compatible = "xiaomi,miwifi-3a", "mediatek,mt7628an-soc"; + model = "Xiaomi MiWiFi 3A"; + + aliases { + led-boot = &led_status_amber; + led-failsafe = &led_status_red; + led-running = &led_status_blue; + led-upgrade = &led_status_amber; + label-mac-device = ðernet; + }; + + chosen { + bootargs = "console=ttyS0,115200"; + }; + + leds { + compatible = "gpio-leds"; + + led_status_blue: status_blue { + function = LED_FUNCTION_STATUS; + color = ; + gpios = <&gpio 11 GPIO_ACTIVE_LOW>; + }; + + led_status_red: status_red { + function = LED_FUNCTION_STATUS; + color = ; + gpios = <&gpio 37 GPIO_ACTIVE_LOW>; + }; + + led_status_amber: status_amber { + function = LED_FUNCTION_STATUS; + color = ; + gpios = <&gpio 44 GPIO_ACTIVE_LOW>; + }; + }; + + keys { + compatible = "gpio-keys"; + + reset { + label = "reset"; + gpios = <&gpio 38 GPIO_ACTIVE_LOW>; + linux,code = ; + }; + }; +}; + +&state_default { + gpio { + groups = "gpio", "refclk", "wdt", "wled_an"; + function = "gpio"; + }; +}; + +&ehci { + status = "disabled"; +}; + +&ohci { + status = "disabled"; +}; + +&esw { + mediatek,portmap = <0x3e>; + mediatek,portdisable = <0x2a>; +}; + +&wmac { + status = "okay"; + nvmem-cells = <&eeprom_factory_0>; + nvmem-cell-names = "eeprom"; +}; + +&pcie { + status = "okay"; +}; + +&pcie0 { + wifi@0,0 { + compatible = "mediatek,mt76"; + reg = <0x0000 0 0 0 0>; + nvmem-cells = <&eeprom_factory_8000>; + nvmem-cell-names = "eeprom"; + ieee80211-freq-limit = <5000000 6000000>; + }; +}; + +ðernet { + nvmem-cells = <&macaddr_factory_28>; + nvmem-cell-names = "mac-address"; +}; + +&spi0 { + status = "okay"; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <40000000>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "Bootloader"; + reg = <0x0 0x30000>; + read-only; + }; + + partition@30000 { + label = "Config"; + reg = <0x30000 0x10000>; + }; + + partition@40000 { + label = "Bdata"; + reg = <0x40000 0x10000>; + read-only; + }; + + partition@50000 { + label = "factory"; + reg = <0x50000 0x10000>; + read-only; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + eeprom_factory_0: eeprom@0 { + reg = <0x0 0x400>; + }; + + eeprom_factory_8000: eeprom@8000 { + reg = <0x8000 0x200>; + }; + + macaddr_factory_4: macaddr@4 { + reg = <0x4 0x6>; + }; + + macaddr_factory_28: macaddr@28 { + reg = <0x28 0x6>; + }; + + macaddr_factory_8004: macaddr@8004 { + reg = <0x8004 0x6>; + }; + }; + }; + + partition@60000 { + label = "crash"; + reg = <0x60000 0x10000>; + read-only; + }; + + partition@70000 { + label = "crash_syslog"; + reg = <0x70000 0x10000>; + read-only; + }; + + partition@80000 { + label = "overlay"; + reg = <0x80000 0x100000>; + read-only; + }; + + partition@180000 { + label = "firmware"; + compatible = "denx,uimage"; + reg = <0x180000 0xe80000>; + }; + }; + }; +}; diff --git a/target/linux/ramips/image/mt76x8.mk b/target/linux/ramips/image/mt76x8.mk index 5020136017..2e396132b1 100644 --- a/target/linux/ramips/image/mt76x8.mk +++ b/target/linux/ramips/image/mt76x8.mk @@ -1213,6 +1213,14 @@ define Device/xiaomi_mi-router-4c endef TARGET_DEVICES += xiaomi_mi-router-4c +define Device/xiaomi_miwifi-3a + IMAGE_SIZE := 16064k + DEVICE_VENDOR := Xiaomi + DEVICE_MODEL := MiWiFi 3A + DEVICE_PACKAGES := kmod-mt76x2 +endef +TARGET_DEVICES += xiaomi_miwifi-3a + define Device/xiaomi_miwifi-3c IMAGE_SIZE := 15104k DEVICE_VENDOR := Xiaomi diff --git a/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network b/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network index db7a14cdcb..bb885f4b56 100644 --- a/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network +++ b/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network @@ -216,6 +216,10 @@ ramips_setup_interfaces() ucidef_add_switch "switch0" \ "4:lan:1" "2:lan:2" "1:wan" "6@eth0" ;; + xiaomi,miwifi-3a) + ucidef_add_switch "switch0" \ + "0:wan" "2:lan:1" "4:lan:2" "6@eth0" + ;; xiaomi,miwifi-3c) ucidef_add_switch "switch0" \ "0:wan" "2:lan:2" "4:lan:1" "6@eth0" diff --git a/target/linux/ramips/mt76x8/base-files/etc/init.d/bootcount b/target/linux/ramips/mt76x8/base-files/etc/init.d/bootcount old mode 100755 new mode 100644 index 23f1e71b41..069b481bb9 --- a/target/linux/ramips/mt76x8/base-files/etc/init.d/bootcount +++ b/target/linux/ramips/mt76x8/base-files/etc/init.d/bootcount @@ -9,6 +9,7 @@ boot() { echo -e "bootcount\nbootchanged\n" | /usr/sbin/fw_setenv -s - ;; xiaomi,mi-router-4c|\ + xiaomi,miwifi-3a|\ xiaomi,miwifi-nano) fw_setenv flag_boot_success 1 ;; -- 2.30.2