[openwrt/openwrt] ramips: Add support for Xiaomi MiWiFi 3A
LEDE Commits
lede-commits at lists.infradead.org
Sun Apr 20 13:01:54 PDT 2025
hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/c3b8108a2be4df3a114ac6d964c664dffd2d5bbf
commit c3b8108a2be4df3a114ac6d964c664dffd2d5bbf
Author: Olgun Demir <olgun.demir at mail.com.tr>
AuthorDate: Sun Apr 20 07:04:33 2025 +0200
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 <olgun.demir at mail.com.tr>
Link: https://github.com/openwrt/openwrt/pull/18427
Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
.../boot/uboot-tools/uboot-envtools/files/ramips | 1 +
.../linux/ramips/dts/mt7628an_xiaomi_miwifi-3a.dts | 190 +++++++++++++++++++++
target/linux/ramips/image/mt76x8.mk | 8 +
.../mt76x8/base-files/etc/board.d/02_network | 4 +
.../ramips/mt76x8/base-files/etc/init.d/bootcount | 1 +
5 files changed, 204 insertions(+)
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 <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ 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 = <LED_COLOR_ID_BLUE>;
+ gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+ };
+
+ led_status_red: status_red {
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_RED>;
+ gpios = <&gpio 37 GPIO_ACTIVE_LOW>;
+ };
+
+ led_status_amber: status_amber {
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_AMBER>;
+ gpios = <&gpio 44 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ keys {
+ compatible = "gpio-keys";
+
+ reset {
+ label = "reset";
+ gpios = <&gpio 38 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_RESTART>;
+ };
+ };
+};
+
+&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 at 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 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 = "Bootloader";
+ reg = <0x0 0x30000>;
+ read-only;
+ };
+
+ partition at 30000 {
+ label = "Config";
+ reg = <0x30000 0x10000>;
+ };
+
+ partition at 40000 {
+ label = "Bdata";
+ reg = <0x40000 0x10000>;
+ read-only;
+ };
+
+ partition at 50000 {
+ label = "factory";
+ reg = <0x50000 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 0x200>;
+ };
+
+ macaddr_factory_4: macaddr at 4 {
+ reg = <0x4 0x6>;
+ };
+
+ macaddr_factory_28: macaddr at 28 {
+ reg = <0x28 0x6>;
+ };
+
+ macaddr_factory_8004: macaddr at 8004 {
+ reg = <0x8004 0x6>;
+ };
+ };
+ };
+
+ partition at 60000 {
+ label = "crash";
+ reg = <0x60000 0x10000>;
+ read-only;
+ };
+
+ partition at 70000 {
+ label = "crash_syslog";
+ reg = <0x70000 0x10000>;
+ read-only;
+ };
+
+ partition at 80000 {
+ label = "overlay";
+ reg = <0x80000 0x100000>;
+ read-only;
+ };
+
+ partition at 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 at eth0"
;;
+ xiaomi,miwifi-3a)
+ ucidef_add_switch "switch0" \
+ "0:wan" "2:lan:1" "4:lan:2" "6 at eth0"
+ ;;
xiaomi,miwifi-3c)
ucidef_add_switch "switch0" \
"0:wan" "2:lan:2" "4:lan:1" "6 at 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
;;
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