openwrt/target/linux/ramips/dts/GB-PC2.dts
Rosen Penev c60a21532b ramips: Add support for the GnuBee Personal Cloud Two
The GnuBee Personal Cloud Two crowdfunded on https://www.crowdsupply.com
It is a low-cost, low-power, network-attached storage device.

Specifications:

- SoC: MediaTek MT7621AT
- RAM: DDR3 512 MB
- Flash: 32 MB
- Six SATA ports for 3.5" Drives
- One SDcard
- One USB 3.0
- Two USB 2.0
- Gigabit Ethernet: Three Ports
- UART 3.5mm Audio Jack or 3 pin header - 57600 8N1
- Three GPIOs available on a pin header

Flash instructions:

The GnuBee Personal Cloud Two ships with libreCMC installed.
libreCMC is a Free Software Foundation approved fork of LEDE/OpenWrt.
As such one can upgrade using the webinterface or sysupgrade.

Das U-Boot has multiple options for recovery or updates including :

- USB
- http
- tftp

Errata:
- While there are three ethernet ports, the third requires support for
  the second GMAC. This will come in kernel 4.14.
- The first hard drive slot has a clearance issue with the two fan
  headers. Workaround is to pull the headers out and connect the pins to
  jumper wires.
- Using this device as a NAS is problematic with the 4.9 kernel as many
  /dev/sdX reads throw silent errors. The current theory behind this is
  some kind of unhandled DMA mapping error in the kernel. This is not an
  issue with kernel 4.4.

Signed-off-by: L. D. Pinney <ldpinney@gmail.com>
Signed-off-by: Rosen Penev <rosenp@gmail.com>
2018-02-13 10:01:52 +01:00

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Plaintext

/dts-v1/;
#include "mt7621.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "gnubee,gb-pc2", "mediatek,mt7621-soc";
model = "GB-PC2";
memory@0 {
device_type = "memory";
reg = <0x0 0x1c000000>, <0x20000000 0x4000000>;
};
chosen {
bootargs = "console=ttyS0,57600";
};
palmbus: palmbus@1E000000 {
i2c@900 {
status = "okay";
};
};
gpio-keys-polled {
compatible = "gpio-keys-polled";
#address-cells = <1>;
#size-cells = <0>;
poll-interval = <20>;
reset {
label = "reset";
gpios = <&gpio0 18 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_RESTART>;
};
};
gpio-leds {
compatible = "gpio-leds";
system {
label = "gb-pc2:green:system";
gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
};
status {
label = "gb-pc2:green:status";
gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
};
lan {
label = "gb-pc2:green:lan";
gpios = <&gpio0 24 GPIO_ACTIVE_LOW>;
};
wan {
label = "gb-pc2:green:wan";
gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;
};
eth1-y {
label = "gb-pc2:yellow:eth1-y";
gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
};
eth1-g {
label = "gb-pc2:green:eth1-g";
gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
};
};
};
&sdhci {
status = "okay";
};
&spi0 {
status = "okay";
m25p80@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <10000000>;
m25p,chunked-io = <32>;
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 0x1fb0000>;
};
};
};
&cpuclock {
compatible = "fixed-clock";
clock-frequency = <900000000>;
};
&pcie {
status = "okay";
};
&ethernet {
mtd-mac-address = <&factory 0xe000>;
};
&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "uart3";
ralink,function = "gpio";
};
};
};