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736d16baad
The GL-AR300M series have an internal header for I2C.
Provide DTS definitions for the i2c-gpio driver.
The I2C drivers; kmod-i2c-core, kmod-i2c-gpio
consume ~20 kB of flash and can be loaded as modules,
Default clock measured ~11.4 ms period, ~88 kHz
The board has two sets of (unpopulated) headers. While facing the
back of the board (looking into the Ethernet jacks), and looking from
the top, the one on the left edge of the baord with four holes is the
I2C header. It appears to be labeled J8 on "GL-AR300M-V1.4.0" boards.
| (Patch antenna)
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| O GND
| O SDA / GPIO 17
| O SCL / GPIO 16
| ⊡ 3V3 (square land)
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| (Ethernet jacks)
https://docs.gl-inet.com/en/3/hardware/ar300m/#pcb-pinout states
"Note: I2C is not working in some early version of the router."
Signed-off-by: Jeff Kletsky <git-commits@allycomm.com>
146 lines
2.3 KiB
Plaintext
146 lines
2.3 KiB
Plaintext
/dts-v1/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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#include "qca953x.dtsi"
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/ {
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aliases {
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led-boot = &led_status;
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led-failsafe = &led_status;
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led-running = &led_status;
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led-upgrade = &led_status;
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label-mac-device = ð0;
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};
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keys {
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compatible = "gpio-keys";
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pinctrl-names = "default";
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pinctrl-0 = <&jtag_disable_pins>;
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button0 {
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label = "reset";
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linux,code = <KEY_RESTART>;
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gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
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};
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button1 {
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label = "button right";
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linux,code = <BTN_0>;
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gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
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};
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button3 {
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label = "button left";
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linux,code = <BTN_1>;
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gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
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};
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};
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leds {
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compatible = "gpio-leds";
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// Colors from non-Lite versions
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led_status: status {
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label = "gl-ar300m:green:status";
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gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
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};
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led_lan: lan {
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label = "gl-ar300m:green:lan";
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gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
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};
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led_wlan: wlan {
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label = "gl-ar300m:red:wlan";
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gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
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linux,default-trigger = "phy0tpt";
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};
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};
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i2c: i2c {
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compatible = "i2c-gpio";
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sda-gpios = <&gpio 17 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
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scl-gpios = <&gpio 16 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
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};
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};
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&pcie0 {
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status = "okay";
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};
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&spi {
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status = "okay";
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num-cs = <0>;
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flash@0 {
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compatible = "winbond,w25q128", "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <25000000>;
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "u-boot";
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reg = <0x000000 0x040000>;
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read-only;
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};
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partition@1 {
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label = "u-boot-env";
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reg = <0x040000 0x010000>;
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};
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partition@2 {
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compatible = "denx,uimage";
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label = "firmware";
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reg = <0x050000 0xfa0000>;
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};
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art: partition@3 {
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label = "art";
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reg = <0xff0000 0x010000>;
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read-only;
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};
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};
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};
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};
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&uart {
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status = "okay";
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};
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&usb0 {
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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};
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&usb_phy {
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status = "okay";
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};
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ð0 {
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status = "okay";
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mtd-mac-address = <&art 0x0>;
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phy-handle = <&swphy4>;
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};
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ð1 {
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mtd-mac-address = <&art 0x0>;
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mtd-mac-address-increment = <1>;
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};
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&wmac {
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status = "okay";
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mtd-cal-data = <&art 0x1000>;
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mtd-mac-address = <&art 0x1002>;
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};
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