openwrt/target/linux/brcm2708/patches-4.9/950-0199-BCM270X_DT-Add-bcm2708-rpi-0-w.dts.patch

From 41620ad7f4b059be162f615a7be423df78406d29 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 24 May 2016 16:30:05 +0100
Subject: [PATCH] BCM270X_DT: Add bcm2708-rpi-0-w.dts

Add DT support for the Pi Zero W. N.B. It will not be loaded
automatically without a corresponding change to the firmware.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
 arch/arm/boot/dts/Makefile            |   1 +
 arch/arm/boot/dts/bcm2708-rpi-0-w.dts | 197 ++++++++++++++++++++++++++++++++++
 2 files changed, 198 insertions(+)
 create mode 100644 arch/arm/boot/dts/bcm2708-rpi-0-w.dts

--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
 	bcm2708-rpi-b.dtb \
 	bcm2708-rpi-b-plus.dtb \
 	bcm2708-rpi-cm.dtb \
+	bcm2708-rpi-0-w.dtb \
 	bcm2709-rpi-2-b.dtb \
 	bcm2710-rpi-3-b.dtb \
 	bcm2710-rpi-cm3.dtb
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
@@ -0,0 +1,197 @@
+/dts-v1/;
+
+#include "bcm2708.dtsi"
+
+/ {
+	model = "Raspberry Pi Zero W";
+};
+
+&gpio {
+	sdhost_pins: sdhost_pins {
+		brcm,pins = <48 49 50 51 52 53>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	spi0_pins: spi0_pins {
+		brcm,pins = <9 10 11>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	spi0_cs_pins: spi0_cs_pins {
+		brcm,pins = <8 7>;
+		brcm,function = <1>; /* output */
+	};
+
+	i2c0_pins: i2c0 {
+		brcm,pins = <0 1>;
+		brcm,function = <4>;
+	};
+
+	i2c1_pins: i2c1 {
+		brcm,pins = <2 3>;
+		brcm,function = <4>;
+	};
+
+	i2s_pins: i2s {
+		brcm,pins = <18 19 20 21>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	sdio_pins: sdio_pins {
+		brcm,pins = <34 35 36 37 38 39>;
+		brcm,function = <7>; /* ALT3 = SD1 */
+		brcm,pull = <0 2 2 2 2 2>;
+	};
+
+	bt_pins: bt_pins {
+		brcm,pins = <43>;
+		brcm,function = <4>; /* alt0:GPCLK2 */
+		brcm,pull = <0>; /* none */
+	};
+
+	uart0_pins: uart0_pins {
+		brcm,pins = <30 31 32 33>;
+		brcm,function = <7>; /* alt3=UART0 */
+		brcm,pull = <2 0 0 2>; /* up none none up */
+	};
+
+	uart1_pins: uart1_pins {
+		brcm,pins;
+		brcm,function;
+		brcm,pull;
+	};
+
+	audio_pins: audio_pins {
+		brcm,pins = <>;
+		brcm,function = <>;
+	};
+};
+
+&sdhost {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhost_pins>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&mmc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio_pins>;
+	non-removable;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&fb {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins &bt_pins>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+	status = "okay";
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
+	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
+
+	spidev0: spidev@0{
+		compatible = "spidev";
+		reg = <0>;	/* CE0 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+
+	spidev1: spidev@1{
+		compatible = "spidev";
+		reg = <1>;	/* CE1 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+};
+
+&i2s {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_pins>;
+};
+
+&random {
+	status = "okay";
+};
+
+&leds {
+	act_led: act {
+		label = "led0";
+		linux,default-trigger = "mmc0";
+		gpios = <&gpio 47 0>;
+	};
+};
+
+&hdmi {
+	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+};
+
+&audio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&audio_pins>;
+};
+
+/ {
+	chosen {
+		bootargs = "8250.nr_uarts=1";
+	};
+};
+
+/ {
+	__overrides__ {
+		uart0 = <&uart0>,"status";
+		uart1 = <&uart1>,"status";
+		i2s = <&i2s>,"status";
+		spi = <&spi0>,"status";
+		i2c0 = <&i2c0>,"status";
+		i2c1 = <&i2c1>,"status";
+		i2c2_iknowwhatimdoing = <&i2c2>,"status";
+		i2c0_baudrate = <&i2c0>,"clock-frequency:0";
+		i2c1_baudrate = <&i2c1>,"clock-frequency:0";
+		i2c2_baudrate = <&i2c2>,"clock-frequency:0";
+
+		act_led_gpio = <&act_led>,"gpios:4";
+		act_led_activelow = <&act_led>,"gpios:8";
+		act_led_trigger = <&act_led>,"linux,default-trigger";
+
+		audio = <&audio>,"status";
+		watchdog = <&watchdog>,"status";
+		random = <&random>,"status";
+		sd_overclock = <&sdhost>,"brcm,overclock-50:0";
+		sd_force_pio = <&sdhost>,"brcm,force-pio?";
+		sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
+		sd_debug     = <&sdhost>,"brcm,debug";
+	};
+};