ramips: add support for TP-Link EX220 v1

This device is very similar, if not identical, to the TP-Link AX23 v1
but is targeted at service providers and features a completely different
flash layout.

Hardware
--------

CPU:    MediaTek MT7621 DAT
RAM:    128MB DDR3 (integrated)
FLASH:  16MB SPI-NOR
WiFi:   MediaTek MT7905 + MT7975 (2.4 / 5 DBDC) 802.11ax
SERIAL: 115200 8N1
        LEDs - (3V3 - GND - RX - TX) - ETH ports

Installation
------------

Flashing is only possible via a serial connection using the sysupgrade
image; the factory image must be signed. You can flash the sysupgrade
image directly through the U-Boot console, or preferably, by booting the
initramfs image and flashing with the sysupgrade command. Follow these
steps for sysupgrade flashing:

1. Establish a UART serial connection.
2. Set up a TFTP server at 192.168.0.2 and copy the initramfs image
   there.
3. Power on the device and press any key to interrupt normal boot.
4. Load the initramfs image using tftpboot.
5. Boot with bootm.
6. If you haven't done so already, back up all stock mtd partitions.
7. Copy the sysupgrade image to the router.
8. Flash OpenWrt through either LuCI or the sysupgrade command. Remember
   not to attempt saving settings.

Revert to stock firmware
------------------------

Flash stock firmware via OEM web-recovery mode. If you don't have access
to the stock firmware image, you will need to restore the firmware
partition backed up earlier.

Web-Recovery
------------

The router supports an HTTP recovery mode:

1. Turn off the router.
2. Press the reset button and power on the device.
3. When all LEDs start flashing, release reset and quickly press it
   again.

The interface is reachable at 192.168.0.1 and supports installation of
the OEM factory image. Note that flashing OpenWrt this way is not
possible, as mentioned above.

Signed-off-by: Darlan Pedro de Campos <darlanpedro@gmail.com>
(cherry picked from commit 2a0c9cc8cdaa76414993deaff3371dba294638db)

diff --git a/target/linux/ramips/dts/mt7621_tplink_ex220-v1.dts b/target/linux/ramips/dts/mt7621_tplink_ex220-v1.dts
new file mode 100644 (file)
index 0000000..c809cb0
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_tplink_ex220-v1.dts
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+       compatible = "tplink,ex220-v1", "mediatek,mt7621-soc";
+       model = "TP-Link EX220 v1";
+
+       aliases {
+               led-boot = &led_power;
+               led-failsafe = &led_power;
+               led-running = &led_power;
+               led-upgrade = &led_power;
+               label-mac-device = &gmac0;
+       };
+
+       chosen {
+               bootargs = "console=ttyS0,115200";
+       };
+
+       keys {
+               compatible = "gpio-keys";
+
+               button-wps {
+                       label = "rfkill";
+                       gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RFKILL>;
+               };
+
+               button-reset {
+                       label = "reset";
+                       gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_RESTART>;
+               };
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led-wps {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_WPS;
+                       gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+               };
+
+               led-lan {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_LAN;
+                       gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+               };
+
+               led-wan-orange {
+                       color = <LED_COLOR_ID_AMBER>;
+                       function = LED_FUNCTION_WAN;
+                       gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+               };
+
+               led-wan-green {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_WAN;
+                       gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+               };
+
+               led-wifi5g {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_WLAN;
+                       function-enumerator = <5>;
+                       gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "phy1tpt";
+               };
+
+               led-wifi2g {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_WLAN;
+                       function-enumerator = <2>;
+                       gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "phy0tpt";
+               };
+
+               led_power: led-power {
+                       label = "green:power"; // to be removed once #13837 is merged
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_POWER;
+                       gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+               };
+       };
+};
+
+&spi0 {
+       status = "okay";
+
+       flash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <25000000>;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "boot";
+                               reg = <0x00 0x30000>;
+                               read-only;
+                       };
+
+                       partition@30000 {
+                               label = "boot-env";
+                               reg = <0x30000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@40000 {
+                               label = "factory";
+                               reg = <0x40000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@50000 {
+                               label = "config";
+                               reg = <0x50000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@60000 {
+                               label = "isp_config";
+                               reg = <0x60000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@70000 {
+                               label = "rom_file";
+                               reg = <0x70000 0x10000>;
+                               read-only;
+
+                               nvmem-layout {
+                                       compatible = "fixed-layout";
+                                       #address-cells = <1>;
+                                       #size-cells = <1>;
+
+                                       macaddr_rom_file_f100: macaddr@f100 {
+                                               compatible = "mac-base";
+                                               reg = <0xf100 0x6>;
+                                               #nvmem-cell-cells = <1>;
+                                       };
+                               };
+                       };
+
+                       partition@80000 {
+                               label = "cloud";
+                               reg = <0x80000 0x10000>;
+                               read-only;
+                       };
+
+                       radio: partition@90000 {
+                               label = "radio";
+                               reg = <0x90000 0x20000>;
+                               read-only;
+                       };
+
+                       partition@b0000 {
+                               label = "config_bak";
+                               reg = <0xb0000 0x10000>;
+                               read-only;
+                       };
+
+                       partition@c0000 {
+                               compatible = "denx,fit";
+                               label = "firmware";
+                               reg = <0xc0000 0xf30000>;
+                       };
+               };
+       };
+};
+
+&pcie {
+       status = "okay";
+};
+
+&pcie1 {
+       wifi@0,0 {
+               compatible = "mediatek,mt76";
+               reg = <0x0000 0 0 0 0>;
+               mediatek,mtd-eeprom = <&radio 0x0>;
+               nvmem-cells = <&macaddr_rom_file_f100 0>;
+               nvmem-cell-names = "mac-address";
+               mediatek,disable-radar-background;
+       };
+};
+
+&gmac0 {
+       nvmem-cells = <&macaddr_rom_file_f100 0>;
+       nvmem-cell-names = "mac-address";
+};
+
+&gmac1 {
+       status = "okay";
+       label = "wan";
+       phy-handle = <&ethphy4>;
+
+       nvmem-cells = <&macaddr_rom_file_f100 1>;
+       nvmem-cell-names = "mac-address";
+};
+
+&mdio {
+       ethphy4: ethernet-phy@4 {
+               reg = <4>;
+       };
+};
+
+&switch0 {
+       ports {
+               port@0 {
+                       status = "okay";
+                       label = "lan1";
+               };
+
+               port@1 {
+                       status = "okay";
+                       label = "lan2";
+               };
+
+               port@2 {
+                       status = "okay";
+                       label = "lan3";
+               };
+
+               port@3 {
+                       status = "okay";
+                       label = "lan4";
+               };
+       };
+};
+
+&state_default {
+       gpio {
+               groups = "i2c", "uart3", "jtag", "wdt";
+               function = "gpio";
+       };
+};

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 945fe3668feab2bf90b8495ec2fc2891b4a692b9..6b869f95948524cb5a1d4afb6dddee14e021215d 100644 (file)
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -2306,6 +2306,20 @@ define Device/tplink_er605-v2
 endef
 TARGET_DEVICES += tplink_er605-v2
 
+define Device/tplink_ex220-v1
+  $(Device/dsa-migration)
+  DEVICE_VENDOR := TP-Link
+  DEVICE_MODEL := EX220
+  DEVICE_VARIANT := v1
+  DEVICE_PACKAGES := kmod-mt7915-firmware -uboot-envtools
+  TPLINK_BOARD_ID := EX220-V1
+  KERNEL_LOADADDR := 0x82000000
+  KERNEL := kernel-bin | relocate-kernel 0x80001000 | lzma | \
+       fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
+  IMAGE_SIZE := 15744k
+endef
+TARGET_DEVICES += tplink_ex220-v1
+
 define Device/tplink_mr600-v2-eu
   $(Device/dsa-migration)
   $(Device/tplink-v2)

diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index 784a4ba0d914e9e797f20fff3934525177978253..db9c3f66e85c5b0ce422cdaefe6cbc84a4588eb9 100644 (file)
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -188,7 +188,8 @@ snr,snr-cpe-me1)
 tplink,archer-a6-v3|\
 tplink,archer-ax23-v1|\
 tplink,archer-c6-v3|\
-tplink,archer-c6u-v1)
+tplink,archer-c6u-v1|\
+tplink,ex220-v1)
        ucidef_set_led_netdev "lan" "LAN" "green:lan" "br-lan"
        ucidef_set_led_netdev "wan" "WAN" "green:wan" "wan"
        ;;

diff --git a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
index 46d6b15af0f1092a9d1a9be35b3450d75447c874..6ab19b9e3c5117f82f55e4834547f3f450dc024c 100644 (file)
--- a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
+++ b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
@@ -174,6 +174,10 @@ case "$board" in
                hw_mac_addr="$(mtd_get_mac_binary product-info 0x8)"
                macaddr_add "$hw_mac_addr" "$PHYNBR" > "/sys${DEVPATH}/macaddress"
                ;;
+       tplink,ex220-v1)
+               hw_mac_addr="$(mtd_get_mac_binary rom_file 0xf100)"
+               [ "$PHYNBR" = "1" ] &&  macaddr_add "$hw_mac_addr" 2 > "/sys${DEVPATH}/macaddress"
+               ;;
        yuncore,ax820)
                [ "$PHYNBR" = "1" ] && \
                        macaddr_setbit_la "$(mtd_get_mac_binary Factory 0xe000)" > /sys${DEVPATH}/macaddress