ramips: add support for Xiaomi Mi Router 4AC (100M Edition)

This router seems to have the same hardware as Xiaomi Mi Router
4A (100M Edition) but it uses a different U-Boot.

SPECIFICATIONS:

- SoC:      MediaTek MT7628AN
- Flash:    16MB (Winbond W25Q128JV)
- RAM:      64MB
- Serial:   As marked on PCB, 3V3 logic, baudrate is 115200
- Ethernet: 3x 10/100 Mbps (switched, 2x LAN + WAN)
- WIFI0:    MT7628AN 2.4GHz 802.11b/g/n
- WIFI1:    MT7612EN 5GHz 802.11ac
- Antennas: 4x external (2 per radio), non-detachable
- LEDs:     Programmable power-LED (two-colored, yellow/blue)
            Non-programmable internet-LED (shows WAN-activity)
- Buttons:  Reset

INSTALLATION:

1. Connect to the serial port of the router and power it up.
   If you get a prompt asking for boot-mode, go to step 3.
2. Unplug the router after
       > Erasing SPI Flash...
       > raspi_erase: offs:20000 len:10000
   occurs on the serial port. Plug the router back in.
3. At the prompt select option 2 (Load system code then
   write to Flash via TFTP.)
4. Enter 192.168.1.1 as the device IP and 192.168.1.2 as the
   Server-IP.
5. Connect your computer to LAN1 and assign it as 192.168.1.2/24.
6. Serve the sysupgrade image via TFTP

Signed-off-by: Sorin Pop <alexsorinpop@gmail.com>
[use full name, use DTSI, add separate WAN MAC address]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

diff --git a/target/linux/ramips/dts/mt7628an_xiaomi_mi-router-4ac-100m.dts b/target/linux/ramips/dts/mt7628an_xiaomi_mi-router-4ac-100m.dts
new file mode 100644 (file)
index 0000000..b3a8a9b
--- /dev/null
+++ b/target/linux/ramips/dts/mt7628an_xiaomi_mi-router-4ac-100m.dts
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7628an_xiaomi_mi-router-4.dtsi"
+
+/ {
+       compatible = "xiaomi,mi-router-4ac-100m", "mediatek,mt7628an-soc";
+       model = "Xiaomi Mi Router 4AC (100M Edition)";
+};
+
+&partitions {
+       partition@60000 {
+               label = "overlay";
+               reg = <0x60000 0x200000>;
+               read-only;
+       };
+
+       partition@260000 {
+               label = "firmware";
+               reg = <0x260000 0xda0000>;
+               compatible = "denx,uimage";
+       };
+};
+
+&pcie {
+       status = "okay";
+};
+
+&pcie0 {
+       wifi@0,0 {
+               compatible = "mediatek,mt76";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&factory 0x8000>;
+               ieee80211-freq-limit = <5000000 6000000>;
+       };
+};
+
+&ethernet {
+       mtd-mac-address = <&factory 0x4>;
+       mtd-mac-address-increment = <(-1)>;
+};
+
+&esw {
+       mediatek,portmap = <0x3e>;
+       mediatek,portdisable = <0x2a>;
+};

diff --git a/target/linux/ramips/image/mt76x8.mk b/target/linux/ramips/image/mt76x8.mk
index 00593dd6f50650694e8ed30b2795db1dbeffcc31..f5db72bdb70fed2ddcdfc4b03c04f1c9cddaa562 100644 (file)
--- a/target/linux/ramips/image/mt76x8.mk
+++ b/target/linux/ramips/image/mt76x8.mk
@@ -753,6 +753,15 @@ define Device/xiaomi_mi-router-4a-100m
 endef
 TARGET_DEVICES += xiaomi_mi-router-4a-100m
 
+define Device/xiaomi_mi-router-4ac-100m
+  IMAGE_SIZE := 13952k
+  DEVICE_VENDOR := Xiaomi
+  DEVICE_MODEL := Mi Router 4AC
+  DEVICE_VARIANT := 100M Edition
+  DEVICE_PACKAGES := kmod-mt76x2
+endef
+TARGET_DEVICES += xiaomi_mi-router-4ac-100m
+
 define Device/xiaomi_mi-router-4c
   IMAGE_SIZE := 14976k
   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 fcc2630b3fec00df06e301b92a7fc6b9561ccb4e..6cb818b404d2d13db659b3c2cde0743b5ac78b93 100755 (executable)
--- a/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/mt76x8/base-files/etc/board.d/02_network
@@ -133,7 +133,8 @@ ramips_setup_interfaces()
                ucidef_add_switch "switch0" \
                        "0:wan" "3:lan" "4:lan" "6@eth0"
                ;;
-       xiaomi,mi-router-4a-100m)
+       xiaomi,mi-router-4a-100m|\
+       xiaomi,mi-router-4ac-100m)
                ucidef_add_switch "switch0" \
                        "4:lan:1" "2:lan:2" "0:wan" "6@eth0"
                ;;
@@ -239,6 +240,7 @@ ramips_setup_macs()
                wan_mac=$(mtd_get_mac_binary factory 0x28)
                ;;
        xiaomi,mi-router-4a-100m|\
+       xiaomi,mi-router-4ac-100m|\
        xiaomi,mi-router-4c)
                wan_mac=$(mtd_get_mac_binary factory 0x4)
                ;;