ramips: add support for TP-Link TL-MR3020 v3

TP-Link TL-MR3020 v3 is a pocket-size router based on MediaTek MT7628N.

This PR is based on the work of @meyergru[1], with his permission.

Specification:
- MediaTek MT7628N/N (575 Mhz)
- 64 MB of RAM
- 8 MB of FLASH
- 2T2R 2.4 GHz
- 1x 10/100 Mbps Ethernet

Flash instruction:

The only way to flash the image in TL-MR3020 v3 is to use
tftp recovery mode in U-Boot:

1. Configure PC with static IP 192.168.0.225/24 and tftp server.
2. Rename "openwrt-ramips-mt76x8-tplink_tl-mr3020-v3-squashfs-tftp-recovery.bin"
   to "tp_recovery.bin" and place it in tftp server directory.
3. Connect PC with the LAN port, press the reset button, power up
   the router and keep button pressed for around 6-7 seconds, until
   device starts downloading the file.
4. Router will download file from server, write it to flash and reboot.

[1] https://github.com/meyergru/lede-source/commits/TL-MR3020-V3

Signed-off-by: Carlo Nel <carlojnel@gmail.com>

diff --git a/target/linux/ramips/base-files/etc/board.d/01_leds b/target/linux/ramips/base-files/etc/board.d/01_leds
index 8bf7ef3b1e517c807832717a2124d204ec786a6c..293e91ea2163a6bad619a1c2da698fc15e3a7b2d 100755 (executable)
--- a/target/linux/ramips/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/base-files/etc/board.d/01_leds
@@ -404,6 +404,11 @@ tplink,tl-wa801nd-v5)
        ucidef_set_led_wlan "wlan" "wlan" "$boardname:green:wlan" "phy0tpt"
        ucidef_set_led_netdev "lan" "lan" "$boardname:green:lan" "eth0"
        ;;
+tplink,tl-mr3020-v3)
+       set_usb_led "$boardname:green:3g"
+       set_wifi_led "$boardname:green:wlan"
+       ucidef_set_led_netdev "lan" "LAN" "$boardname:green:lan" "eth0"
+       ;;
 tplink,tl-mr3420-v5|\
 tplink,tl-wr842n-v5)
        set_usb_led "$boardname:green:usb"

diff --git a/target/linux/ramips/base-files/etc/board.d/02_network b/target/linux/ramips/base-files/etc/board.d/02_network
index 6e4575a052ead4c0c126d6d8a532e16e7a7e626a..9e9ecbcb51df9aa93f84447ff6963ba52f40be80 100755 (executable)
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -150,6 +150,7 @@ ramips_setup_interfaces()
        pbr-d1|\
        ravpower,wd03|\
        tama,w06|\
+       tplink,tl-mr3020-v3|\
        u25awf-h1|\
        wli-tx4-ag300n|\
        wmdr-143n|\

diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index 68deb672fc518e29a4d93e14dbf8a1017df1ebf9..7558b4e3168ab62de39ad7fd1ba15e54a7876c9d 100755 (executable)
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -265,6 +265,7 @@ platform_check_image() {
        tplink,c20-v1|\
        tplink,c20-v4|\
        tplink,c50-v3|\
+       tplink,tl-mr3020-v3|\
        tplink,tl-mr3420-v5|\
        tplink,tl-wa801nd-v5|\
        tplink,tl-wr842n-v5|\

diff --git a/target/linux/ramips/dts/TL-MR3020V3.dts b/target/linux/ramips/dts/TL-MR3020V3.dts
new file mode 100644 (file)
index 0000000..5bc1a82
--- /dev/null
+++ b/target/linux/ramips/dts/TL-MR3020V3.dts
@@ -0,0 +1,144 @@
+/dts-v1/;
+
+#include "mt7628an.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+       compatible = "tplink,tl-mr3020-v3", "mediatek,mt7628an-soc";
+       model = "TP-Link TL-MR3020 v3";
+
+       aliases {
+               led-status = &led_power;
+       };
+
+       chosen {
+               bootargs = "console=ttyS0,115200";
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x4000000>;
+       };
+
+       gpio-keys-polled {
+               compatible = "gpio-keys-polled";
+               poll-interval = <20>;
+
+               wps {
+                       label = "wps";
+                       gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_WPS_BUTTON>;
+               };
+
+               modec1 {
+                       label = "sw1";
+                       gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+                       linux,code = <BTN_0>;
+               };
+
+               modec2 {
+                       label = "sw2";
+                       gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+                       linux,code = <BTN_1>;
+               };
+       };
+
+       gpio-leds {
+               compatible = "gpio-leds";
+
+               led_power: power {
+                       label = "tl-mr3020-v3:green:power";
+                       gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+                       default-state = "on";
+               };
+
+               wan {
+                       label = "tl-mr3020-v3:green:3g";
+                       gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+               };
+
+               wlan {
+                       label = "tl-mr3020-v3:green:wlan";
+                       gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+               };
+
+               wps {
+                       label = "tl-mr3020-v3:green:wps";
+                       gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+               };
+
+               lan {
+                       label = "tl-mr3020-v3:green:lan";
+                       gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+               };
+       };
+};
+
+&spi0 {
+       status = "okay";
+
+       m25p80@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <10000000>;
+               m25p,chunked-io = <32>;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "boot";
+                               reg = <0x0 0x20000>;
+                               read-only;
+                       };
+
+                       partition@20000 {
+                               label = "firmware";
+                               reg = <0x20000 0x7a0000>;
+                       };
+
+                       partition@7c0000 {
+                               label = "config";
+                               reg = <0x7c0000 0x10000>;
+                               read-only;
+                       };
+
+                       factory: partition@7d0000 {
+                               label = "factory";
+                               reg = <0x7d0000 0x30000>;
+                               read-only;
+                       };
+               };
+       };
+};
+
+&ehci {
+       status = "okay";
+};
+
+&ohci {
+       status = "okay";
+};
+
+&pinctrl {
+       state_default: pinctrl0 {
+               gpio {
+                       ralink,group = "i2s", "refclk", "wdt", "p2led_an", "p1led_an", "p0led_an", "wled_an";
+                       ralink,function = "gpio";
+               };
+       };
+};
+
+&wmac {
+       status = "okay";
+       mtd-mac-address = <&factory 0xf100>;
+       mediatek,mtd-eeprom = <&factory 0x20000>;
+};
+
+&ethernet {
+       mtd-mac-address = <&factory 0xf100>;
+};

diff --git a/target/linux/ramips/image/mt76x8.mk b/target/linux/ramips/image/mt76x8.mk
index 0c657d5a0f66f1ceda397414f9eeb5020c70880c..15bc1ee7031b6e374d05ac498981e1cf968ffb8f 100644 (file)
--- a/target/linux/ramips/image/mt76x8.mk
+++ b/target/linux/ramips/image/mt76x8.mk
@@ -231,6 +231,20 @@ define Device/tplink_c50-v3
 endef
 TARGET_DEVICES += tplink_c50-v3
 
+define Device/tplink_tl-mr3020-v3
+  $(Device/tplink)
+  DTS := TL-MR3020V3
+  IMAGE_SIZE := 7808k
+  DEVICE_TITLE := TP-Link TL-MR3020 v3
+  TPLINK_FLASHLAYOUT := 8Mmtk
+  TPLINK_HWID := 0x30200003
+  TPLINK_HWREV := 0x3
+  TPLINK_HWREVADD := 0x3
+  TPLINK_HVERSION := 3
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ohci kmod-usb-ledtrig-usbport
+endef
+TARGET_DEVICES += tplink_tl-mr3020-v3
+
 define Device/tplink_tl-mr3420-v5
   $(Device/tplink)
   DTS := TL-MR3420V5