[openwrt/openwrt] ramips: add support for Xiaomi MiWifi 3C
LEDE Commits
lede-commits at lists.infradead.org
Sun Oct 31 16:16:46 PDT 2021
adrian pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/3c97fb4346d11ab3e7cc453ffd7b66b4b9140aec
commit 3c97fb4346d11ab3e7cc453ffd7b66b4b9140aec
Author: Eduardo Santos <edu.2000.kill at gmail.com>
AuthorDate: Wed Oct 20 14:54:16 2021 +0100
ramips: add support for Xiaomi MiWifi 3C
This commit adds support for Xiaomi MiWiFi 3C device.
Xiaomi MiWifi 3C has almost the same system architecture
as the Xiaomi Mi WiFi Nano, which is already officially
supported by OpenWrt.
The differences are:
- Numbers of antennas (4 instead of 2). The antenna management
is done via the µC. There is no configuration needed in the
software code.
- LAN port assignments are different. LAN1 and WAN are
interchanged.
OpenWrt Wiki: https://openwrt.org/toh/xiaomi/mir3c
OpenWrt developers forum page:
https://forum.openwrt.org/t/support-for-xiaomi-mi-3c
Specifications:
- CPU: MediaTek MT7628AN (575MHz)
- Flash: 16MB
- RAM: 64MB DDR2
- 2.4 GHz: IEEE 802.11b/g/n with Integrated LNA and PA
- Antennas: 4x external single band antennas
- WAN: 1x 10/100M
- LAN: 2x 10/100M
- LED: 1x amber/blue/red. Programmable
- Button: Reset
MAC addresses as verified by OEM firmware:
use address source
LAN *:92 factory 0x28
WAN *:92 factory 0x28
2g *:93 factory 0x4
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 start 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)
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-3c-squashfs-sysupgrade.bin
to /tmp in router using ftp.
5- Enable UART access and change start image for 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- Installing Openwrt on OS1 and free OS2.
```
mtd erase OS1
mtd erase OS2
mtd -r write /tmp/openwrt-ramips-mt76x8-xiaomi_miwifi-3c-squashfs-sysupgrade.bin OS1
```
Limitations: For the first install the image size needs to be less
than 7733248 bits.
Thanks for all community and especially for this device:
minax007, earth08, S.Farid
Signed-off-by: Eduardo Santos <edu.2000.kill at gmail.com>
[wrap lines, remove whitespace errors, add mediatek,mtd-eeprom to
&wmac, convert to nvmem]
Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
---
package/boot/uboot-envtools/files/ramips | 1 +
.../linux/ramips/dts/mt7628an_xiaomi_miwifi-3c.dts | 156 +++++++++++++++++++++
target/linux/ramips/image/mt76x8.mk | 8 ++
.../mt76x8/base-files/etc/board.d/02_network | 4 +
4 files changed, 169 insertions(+)
diff --git a/package/boot/uboot-envtools/files/ramips b/package/boot/uboot-envtools/files/ramips
index 593f503cf2..9ad4d64ed9 100644
--- a/package/boot/uboot-envtools/files/ramips
+++ b/package/boot/uboot-envtools/files/ramips
@@ -37,6 +37,7 @@ samknows,whitebox-v8|\
xiaomi,mi-router-3g-v2|\
xiaomi,mi-router-4a-gigabit|\
xiaomi,mi-router-4c|\
+xiaomi,miwifi-3c|\
xiaomi,miwifi-nano|\
zbtlink,zbt-wg2626|\
zte,mf283plus)
diff --git a/target/linux/ramips/dts/mt7628an_xiaomi_miwifi-3c.dts b/target/linux/ramips/dts/mt7628an_xiaomi_miwifi-3c.dts
new file mode 100644
index 0000000000..c45f94b2f1
--- /dev/null
+++ b/target/linux/ramips/dts/mt7628an_xiaomi_miwifi-3c.dts
@@ -0,0 +1,156 @@
+// 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>
+
+/ {
+ compatible = "xiaomi,miwifi-3c", "mediatek,mt7628an-soc";
+ model = "Xiaomi MiWiFi 3C";
+
+ 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 {
+ label = "blue:status";
+ gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+ };
+
+ led_status_red: status_red {
+ label = "red:status";
+ gpios = <&gpio 37 GPIO_ACTIVE_LOW>;
+ };
+
+ led_status_amber: status_amber {
+ label = "amber:status";
+ 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";
+
+ mediatek,mtd-eeprom = <&factory 0x0>;
+};
+
+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;
+ };
+
+ factory: partition at 50000 {
+ label = "factory";
+ reg = <0x50000 0x10000>;
+ read-only;
+ };
+
+ partition at 60000 {
+ label = "crash";
+ reg = <0x60000 0x10000>;
+ read-only;
+ };
+
+ partition at 70000 {
+ label = "cfg_bak";
+ reg = <0x70000 0x10000>;
+ read-only;
+ };
+
+ partition at 80000 {
+ label = "overlay";
+ reg = <0x80000 0xc0000>;
+ read-only;
+ };
+
+ partition at 140000 {
+ label = "firmware";
+ compatible = "denx,uimage";
+ reg = <0x140000 0xec0000>;
+ };
+ };
+ };
+};
+
+&factory {
+ compatible = "nvmem-cells";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ macaddr_factory_28: macaddr at 28 {
+ reg = <0x28 0x6>;
+ };
+};
diff --git a/target/linux/ramips/image/mt76x8.mk b/target/linux/ramips/image/mt76x8.mk
index 5f5d281d5c..7d28cd62e8 100644
--- a/target/linux/ramips/image/mt76x8.mk
+++ b/target/linux/ramips/image/mt76x8.mk
@@ -841,6 +841,14 @@ define Device/xiaomi_mi-router-4c
endef
TARGET_DEVICES += xiaomi_mi-router-4c
+define Device/xiaomi_miwifi-3c
+ IMAGE_SIZE := 15104k
+ DEVICE_VENDOR := Xiaomi
+ DEVICE_MODEL := MiWiFi 3C
+ DEVICE_PACKAGES := uboot-envtools
+endef
+TARGET_DEVICES += xiaomi_miwifi-3c
+
define Device/xiaomi_miwifi-nano
IMAGE_SIZE := 16064k
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 638b8f2181..12a29b3907 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
@@ -150,6 +150,10 @@ ramips_setup_interfaces()
ucidef_add_switch "switch0" \
"4:lan:1" "2:lan:2" "1:wan" "6 at eth0"
;;
+ xiaomi,miwifi-3c)
+ ucidef_add_switch "switch0" \
+ "0:wan" "2:lan:2" "4:lan:1" "6 at eth0"
+ ;;
xiaomi,miwifi-nano)
ucidef_add_switch "switch0" \
"0:lan:2" "2:lan:1" "4:wan" "6 at eth0"
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