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

- 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. Rename the sysupgrade image to test.bin and serve it via TFTP.
7. Enter test.bin on the serial console and press enter.

Signed-off-by: Markus Scheck <markus@mscheck.de>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[added mt76 compatible]
This commit is contained in:
Markus Scheck 2019-05-27 19:25:22 +02:00 committed by Christian Lamparter
parent a41f474d17
commit 5ff5c9bce6
3 changed files with 159 additions and 0 deletions

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@ -458,6 +458,10 @@ ramips_setup_interfaces()
ucidef_add_switch "switch0" \
"1:lan:3" "2:lan:2" "3:lan:1" "4:wan" "6@eth0"
;;
xiaomi,mir4a-100m)
ucidef_add_switch "switch0" \
"4:lan:1" "2:lan:2" "0:wan" "6@eth0"
;;
zbtlink,zbt-we1226|\
y1)
ucidef_add_switch "switch0" \

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@ -0,0 +1,147 @@
//SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include "mt7628an.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "xiaomi,mir4a-100m", "mediatek,mt7628an-soc";
model = "Xiaomi Mi Router 4A (100M Edition)";
chosen {
bootargs = "console=ttyS0,115200";
};
memory@0 {
device_type = "memory";
reg = <0x0 0x4000000>;
};
aliases {
led-boot = &power_yellow;
led-failsafe = &power_yellow;
led-running = &power_blue;
led-upgrade = &power_yellow;
};
leds {
compatible = "gpio-leds";
power_blue: power_blue {
label = "mir4a-100m:blue:power";
gpios = <&gpio0 11 GPIO_ACTIVE_LOW>;
};
power_yellow: power_yellow {
label = "mir4a-100m:yellow:power";
gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
};
};
keys {
compatible = "gpio-keys-polled";
poll-interval = <20>;
reset {
label = "reset";
gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};
};
&spi0 {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <10000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "bootloader";
reg = <0x0 0x20000>;
read-only;
};
partition@20000 {
label = "config";
reg = <0x20000 0x10000>;
read-only;
};
factory: partition@30000 {
label = "factory";
reg = <0x30000 0x10000>;
read-only;
};
partition@40000 {
label = "crash";
reg = <0x40000 0x10000>;
read-only;
};
partition@50000 {
label = "cfg_bak";
reg = <0x50000 0x10000>;
read-only;
};
partition@60000 {
label = "overlay";
reg = <0x60000 0x100000>;
read-only;
};
partition@160000 {
label = "firmware";
reg = <0x160000 0xea0000>;
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>;
};
};
&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "gpio", "wdt", "wled_an";
ralink,function = "gpio";
};
};
};
&ethernet {
mtd-mac-address = <&factory 0x4>;
mtd-mac-address-increment = <(-1)>;
};
&esw {
mediatek,portmap = <0x2f>;
mediatek,portdisable = <0x2a>;
};
&wmac {
status = "okay";
};

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@ -450,6 +450,14 @@ define Device/wrtnode2r
endef
TARGET_DEVICES += wrtnode2r
define Device/xiaomi_mir4a-100m
DTS := XIAOMI-MIR4A-100M
IMAGE_SIZE := 14976k
DEVICE_TITLE := Xiaomi Mi Router 4A (100M Edition)
DEVICE_PACKAGES := kmod-mt76x2
endef
TARGET_DEVICES += xiaomi_mir4a-100m
define Device/zbtlink_zbt-we1226
DTS := ZBT-WE1226
IMAGE_SIZE := $(ralink_default_fw_size_8M)