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ramips: add support for ALFA Network Tube-E4G

ALFA Network Tube-E4G is an outdoor, dual-SIM LTE Cat. 4 CPE, based on
MediaTek MT7620A, equipped with Quectel EC25 miniPCIe modem.

Specification:

- MT7620A (580 MHz)
- 64/128/256 MB of RAM (DDR2)
- 16/32 MB of flash (SPI NOR)
- 1x 10/100 Mbps Ethernet, with passive PoE support (24 V)
- 1x miniPCIe slot (with PCIe and USB 2.0 buses)
- 2x SIM slot (mini, micro) with detect and switch driven by GPIO
- 1x detachable antenna (modem main)
- 1x internal antenna (modem div)
- 1x GPS passive antenna (optional)
- 5x LED (all driven by GPIO)
- 1x button (reset)
- UART (4-pin, 2.54 mm pitch) header on PCB

Other:

Default SIM slot is selected at an early stage by U-Boot, based on
'default_sim' environment value: 1 or unset = SIM1 (mini), 2 = SIM2
(micro). U-Boot also resets the modem, using #PERST signal, before
starting kernel.

Flash instruction:

You can use the 'sysupgrade' image directly in vendor firmware which is
based on OpenWrt (make sure to not preserve settings - use 'sysupgrade
-n -F ...' command). Alternatively, use web recovery mode in U-Boot:

1. Power the device with reset button pressed, the LAN LED will start
   blinking slowly and after ~3 seconds, when it starts blinking faster,
   you can release the button.
2. Setup static IP 192.168.1.2/24 on your PC.
3. Go to 192.168.1.1 in browser and upload 'sysupgrade' image.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
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pepe2k committed Mar 10, 2019
1 parent 6ac5144 commit 9b6413982c4c7f9191d08995f1e9b67e38f259de
@@ -38,6 +38,10 @@ alfa-network,ac1200rm)
alfa-network,awusfree1)
set_wifi_led "$boardname:blue:wlan"
;;
alfa-network,tube-e4g)
ucidef_set_led_netdev "4g" "4g" "$boardname:green:4g" "wwan0"
ucidef_set_led_netdev "lan" "lan" "$boardname:blue:lan" "eth0"
;;
all0256n-4M|\
all0256n-8M)
ucidef_set_rssimon "wlan0" "200000" "1"
@@ -147,6 +147,7 @@ ramips_setup_interfaces()
"0:lan" "1:lan" "2:lan" "4:wan" "6@eth0"
;;
alfa-network,awusfree1|\
alfa-network,tube-e4g|\
cs-qr10|\
d105|\
dlink,dap-1522-a1|\
@@ -0,0 +1,190 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;

#include "mt7620a.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
compatible = "alfa-network,tube-e4g", "ralink,mt7620a-soc";
model = "ALFA Network Tube-E4G";

aliases {
led-boot = &power;
led-failsafe = &power;
led-running = &power;
led-upgrade = &power;
};

chosen {
bootargs = "console=ttyS0,115200";
};

gpio-export {
compatible = "gpio-export";
#size-cells = <0>;

modem-enable {
gpio-export,name = "modem-enable";
gpio-export,output = <1>;
gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
};

modem-rf-enable {
gpio-export,name = "modem-rf-enable";
gpio-export,output = <1>;
gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
};

sim-select {
gpio-export,name = "sim-select";
gpio-export,output = <0>;
gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
};

sim1-detect {
gpio-export,name = "sim1-detect";
gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
};

sim2-detect {
gpio-export,name = "sim2-detect";
gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
};
};

keys {
compatible = "gpio-keys";

reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
debounce-interval = <60>;
};
};

leds {
compatible = "gpio-leds";

4g {
label = "tube-e4g:green:4g";
gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
};

lan {
label = "tube-e4g:blue:lan";
gpios = <&gpio2 4 GPIO_ACTIVE_LOW>;
};

power: power {
label = "tube-e4g:green:power";
gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;
default-state = "keep";
};

sim1 {
label = "tube-e4g:green:sim1";
gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
default-state = "keep";
};

sim2 {
label = "tube-e4g:green:sim2";
gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
default-state = "keep";
};
};
};

&ehci {
status = "okay";
};

&ethernet {
mtd-mac-address = <&factory 0x28>;
};

&gpio0 {
status = "okay";
};

&gpio1 {
status = "okay";
};

&gpio2 {
status = "okay";
};

&gsw {
mediatek,port4 = "ephy";
};

&ohci {
status = "okay";
};

&pcie {
status = "disabled";
};

&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "ephy", "nd_sd", "pcie", "uartf";
ralink,function = "gpio";
};
};
};

&spi0 {
status = "okay";

flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
m25p,fast-read;

partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;

partition@0 {
label = "u-boot";
reg = <0x0 0x30000>;
read-only;
};

partition@30000 {
label = "u-boot-env";
reg = <0x30000 0x1000>;
};

partition@31000 {
label = "config";
reg = <0x31000 0xf000>;
read-only;
};

factory: partition@40000 {
label = "factory";
reg = <0x40000 0x10000>;
read-only;
};

partition@50000 {
compatible = "denx,uimage";
label = "firmware";
reg = <0x50000 0xfb0000>;
};
};
};
};

&wmac {
status = "disabled";
};
@@ -51,6 +51,15 @@ define Device/alfa-network_ac1200rm
endef
TARGET_DEVICES += alfa-network_ac1200rm

define Device/alfa-network_tube-e4g
DTS := TUBE-E4G
IMAGE_SIZE := 16064k
DEVICE_TITLE := ALFA Network Tube-E4G
DEVICE_PACKAGES := kmod-usb2 kmod-usb-ohci uboot-envtools uqmi \
-iwinfo -kmod-rt2800-pci -kmod-rt2800-soc -wpad-basic
endef
TARGET_DEVICES += alfa-network_tube-e4g

define Device/Archer
TPLINK_HWREVADD := 0
TPLINK_HVERSION := 3

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