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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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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT | |||
/dts-v1/; | |||
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#include "mt7620a.dtsi" | |||
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#include <dt-bindings/gpio/gpio.h> | |||
#include <dt-bindings/input/input.h> | |||
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/ { | |||
compatible = "alfa-network,tube-e4g", "ralink,mt7620a-soc"; | |||
model = "ALFA Network Tube-E4G"; | |||
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aliases { | |||
led-boot = &power; | |||
led-failsafe = &power; | |||
led-running = &power; | |||
led-upgrade = &power; | |||
}; | |||
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chosen { | |||
bootargs = "console=ttyS0,115200"; | |||
}; | |||
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gpio-export { | |||
compatible = "gpio-export"; | |||
#size-cells = <0>; | |||
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modem-enable { | |||
gpio-export,name = "modem-enable"; | |||
gpio-export,output = <1>; | |||
gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>; | |||
}; | |||
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modem-rf-enable { | |||
gpio-export,name = "modem-rf-enable"; | |||
gpio-export,output = <1>; | |||
gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; | |||
}; | |||
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sim-select { | |||
gpio-export,name = "sim-select"; | |||
gpio-export,output = <0>; | |||
gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>; | |||
}; | |||
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sim1-detect { | |||
gpio-export,name = "sim1-detect"; | |||
gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>; | |||
}; | |||
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sim2-detect { | |||
gpio-export,name = "sim2-detect"; | |||
gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>; | |||
}; | |||
}; | |||
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keys { | |||
compatible = "gpio-keys"; | |||
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reset { | |||
label = "reset"; | |||
linux,code = <KEY_RESTART>; | |||
gpios = <&gpio2 15 GPIO_ACTIVE_LOW>; | |||
debounce-interval = <60>; | |||
}; | |||
}; | |||
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leds { | |||
compatible = "gpio-leds"; | |||
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4g { | |||
label = "tube-e4g:green:4g"; | |||
gpios = <&gpio0 7 GPIO_ACTIVE_LOW>; | |||
}; | |||
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lan { | |||
label = "tube-e4g:blue:lan"; | |||
gpios = <&gpio2 4 GPIO_ACTIVE_LOW>; | |||
}; | |||
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power: power { | |||
label = "tube-e4g:green:power"; | |||
gpios = <&gpio2 0 GPIO_ACTIVE_LOW>; | |||
default-state = "keep"; | |||
}; | |||
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sim1 { | |||
label = "tube-e4g:green:sim1"; | |||
gpios = <&gpio2 3 GPIO_ACTIVE_LOW>; | |||
default-state = "keep"; | |||
}; | |||
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sim2 { | |||
label = "tube-e4g:green:sim2"; | |||
gpios = <&gpio2 2 GPIO_ACTIVE_LOW>; | |||
default-state = "keep"; | |||
}; | |||
}; | |||
}; | |||
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&ehci { | |||
status = "okay"; | |||
}; | |||
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ðernet { | |||
mtd-mac-address = <&factory 0x28>; | |||
}; | |||
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&gpio0 { | |||
status = "okay"; | |||
}; | |||
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&gpio1 { | |||
status = "okay"; | |||
}; | |||
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&gpio2 { | |||
status = "okay"; | |||
}; | |||
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&gsw { | |||
mediatek,port4 = "ephy"; | |||
}; | |||
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&ohci { | |||
status = "okay"; | |||
}; | |||
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&pcie { | |||
status = "disabled"; | |||
}; | |||
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&pinctrl { | |||
state_default: pinctrl0 { | |||
gpio { | |||
ralink,group = "ephy", "nd_sd", "pcie", "uartf"; | |||
ralink,function = "gpio"; | |||
}; | |||
}; | |||
}; | |||
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&spi0 { | |||
status = "okay"; | |||
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flash@0 { | |||
compatible = "jedec,spi-nor"; | |||
reg = <0>; | |||
spi-max-frequency = <50000000>; | |||
m25p,fast-read; | |||
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partitions { | |||
compatible = "fixed-partitions"; | |||
#address-cells = <1>; | |||
#size-cells = <1>; | |||
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partition@0 { | |||
label = "u-boot"; | |||
reg = <0x0 0x30000>; | |||
read-only; | |||
}; | |||
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partition@30000 { | |||
label = "u-boot-env"; | |||
reg = <0x30000 0x1000>; | |||
}; | |||
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partition@31000 { | |||
label = "config"; | |||
reg = <0x31000 0xf000>; | |||
read-only; | |||
}; | |||
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factory: partition@40000 { | |||
label = "factory"; | |||
reg = <0x40000 0x10000>; | |||
read-only; | |||
}; | |||
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partition@50000 { | |||
compatible = "denx,uimage"; | |||
label = "firmware"; | |||
reg = <0x50000 0xfb0000>; | |||
}; | |||
}; | |||
}; | |||
}; | |||
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&wmac { | |||
status = "disabled"; | |||
}; |
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