openwrt/target/linux/brcm2708/patches-4.1/0088-BCM270x_DT-Default-Compute-Module-i2c-i2s-and-spi-su.patch

From afb4d6a911d50ca4a64371a64650c4a89181fa70 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Wed, 17 Jun 2015 17:10:40 +0100
Subject: [PATCH 088/171] BCM270x_DT: Default Compute Module i2c, i2s and spi
 support

---
 arch/arm/boot/dts/bcm2708-rpi-cm.dts | 67 ++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dts
+++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dts
@@ -10,10 +10,77 @@
 	status = "okay";
 };
 
+&gpio {
+	spi0_pins: spi0_pins {
+		brcm,pins = <7 8 9 10 11>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	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 */
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
+
+	spidev@0{
+		compatible = "spidev";
+		reg = <0>;	/* CE0 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+
+	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>;
+};
+
+&i2s {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_pins>;
+};
+
 / {
 	__overrides__ {
 		uart0 = <&uart0>,"status";
 		uart0_clkrate = <&clk_uart0>,"clock-frequency:0";
+		i2s = <&i2s>,"status";
+		spi = <&spi0>,"status";
+		i2c0 = <&i2c0>,"status";
+		i2c1 = <&i2c1>,"status";
+		i2c0_baudrate = <&i2c0>,"clock-frequency:0";
+		i2c1_baudrate = <&i2c1>,"clock-frequency:0";
 		core_freq = <&clk_core>,"clock-frequency:0";
 	};
 };