linux-stable/drivers/staging/mt7621-dts/gbpc1.dts
NeilBrown baa3477f06 staging: mt7621-dts: add support for second network interface
The mt7621 has two network interfaces, one that connects to an
internal switch, and one that can connect to either that switch
or an external phy, or possibly an internal phy.

The Gnubee-PC2 has an external phy for use with the second interface.

This patch add some support for the second interface to mt7621.dtsi
and add a gbpc2.dts which makes use of this.  This allows the second
interface to be used.

I don't fully understand how to configure this interface - the
documentation is thin - so there could well be room for improvement
here.

Signed-off-by: NeilBrown <neil@brown.name>
Link: https://lore.kernel.org/r/156194178766.1430.12784163026696670896.stgit@noble.brown
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-03 18:28:29 +02:00

140 lines
2 KiB
Text

/dts-v1/;
#include "mt7621.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "gnubee,gb-pc1", "mediatek,mt7621-soc";
model = "GB-PC1";
memory@0 {
device_type = "memory";
reg = <0x0 0x1c000000>, <0x20000000 0x4000000>;
};
chosen {
bootargs = "console=ttyS0,57600";
};
palmbus: palmbus@1E000000 {
i2c@900 {
status = "okay";
};
};
gpio-keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_RESTART>;
};
};
gpio-leds {
compatible = "gpio-leds";
system {
label = "gb-pc1:green:system";
gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
};
status {
label = "gb-pc1:green:status";
gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
};
lan1 {
label = "gb-pc1:green:lan1";
gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
};
lan2 {
label = "gb-pc1:green:lan2";
gpios = <&gpio 25 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 = <50000000>;
broken-flash-reset;
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>;
};
};
};
&sysclock {
compatible = "fixed-clock";
/* This is normally 1/4 of cpuclock */
clock-frequency = <225000000>;
};
&cpuclock {
compatible = "fixed-clock";
clock-frequency = <900000000>;
};
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pcie_pins>;
status = "okay";
};
&pinctrl {
state_default: pinctrl0 {
default_gpio: gpio {
groups = "wdt", "rgmii2", "uart3";
function = "gpio";
};
};
};
&switch0 {
ports {
port@0 {
label = "ethblack";
status = "ok";
};
port@4 {
label = "ethblue";
status = "ok";
};
};
};