openwrt/target/linux/ramips/dts/C108.dts
Kristian Evensen 80829022b0 ramips: add support for the HNET C108
The HNET C108
(http://www.szhwtech88.com/Product-product-cid-100-id-4374.html) is a
mifi based on MT7602A, which has the following specifications:

* CPU: MT7620A
* 1x 10/100Mbps Ethernet.
* 16 MB Flash.
* 64 MB RAM.
* 1x USB 2.0 port. Only power is connected, this port is meant for
charging other devices.
* 1x mini-PCIe slots.
* 1x SIM slots.
* 1x 2.4Ghz WIFI.
* 1x button.
* 6000 mAh battery.
* 5x controllable LEDs.

Works:
* Wifi.
* Switch.
* mini-PCIe slot. Only tested with a USB device (a modem).
* SIM slot.
* Sysupgrade.
* Button (reset).

Not working (also applies to the factory firmware):
* Wifi LED. It is always switched on, there is no relation to the
up/down state or activity of the wireless interface.

Not tested:
* SD card reader.

Notes:
* The C108 has no dedicated status LED. I therefore set the LAN LED as
status LED.

Installation:
The router comes pre-installed with OpenWRT, including a variant of
Luci. The initial firmware install can be done through this UI,
following normal procedure. I.e., access the UI and update the firmware
using the sysupgrade-image. Remember to select that you do not want to
keep existing settings.

Recovery:
If you brick the device, the C108 supports recovery using TFTP. Keep the
reset button pressed for ~5sec when booting to trigger TFTP. Set the
address of the network interface on your machine to 10.10.10.3/24, and
rename your image file to Kernal.bin.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
2017-09-09 09:55:13 +02:00

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/*
* BSD LICENSE
*
* Copyright(c) 2017 Kristian Evensen <kristian.evensen@gmail.com>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Broadcom Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/dts-v1/;
#include "mt7620a.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "hnet,c108", "ralink,mt7620a-soc";
model = "HNET C108";
chosen {
bootargs = "console=ttyS0,115200";
};
gpio-export {
compatible = "gpio-export";
#size-cells = <0>;
power_modem {
gpio-export,name = "power_modem";
gpio-export,output = <1>;
gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
};
};
gpio-leds {
compatible = "gpio-leds";
sdcard {
label = "c108:green:sdcard";
gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
};
modem_green {
label = "c108:green:modem";
gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
};
modem_red {
label = "c108:red:modem";
gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
};
lan_red {
label = "c108:red:lan";
gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
};
lan_green {
label = "c108:green:lan";
gpios = <&gpio2 4 GPIO_ACTIVE_HIGH>;
};
};
gpio-keys-polled {
compatible = "gpio-keys-polled";
#address-cells = <1>;
#size-cells = <0>;
poll-interval = <20>;
reset {
label = "reset";
gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};
};
&gpio1 {
status = "okay";
};
&gpio2 {
status = "okay";
};
&spi0 {
status = "okay";
en25q128@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <10000000>;
partition@0 {
label = "u-boot";
reg = <0x0 0x30000>;
read-only;
};
partition@30000 {
label = "u-boot-env";
reg = <0x30000 0x10000>;
read-only;
};
factory: partition@40000 {
label = "factory";
reg = <0x40000 0x10000>;
read-only;
};
partition@50000 {
label = "firmware";
reg = <0x50000 0xfb0000>;
};
};
};
&sdhci {
status = "okay";
};
&ehci {
status = "okay";
};
&ohci {
status = "okay";
};
&ethernet {
mtd-mac-address = <&factory 0x28>;
};
&wmac {
ralink,mtd-eeprom = <&factory 0>;
};
&pinctrl {
state_default: pinctrl0 {
default {
ralink,group = "i2c", "uartf", "spi refclk", "ephy";
ralink,function = "gpio";
};
};
};
&pcie {
status = "okay";
};