ARCH_BCM2835 closing in on ARCH_BCM270X

arch/arm/boot/dts/Makefile

@@ -12,6 +12,9 @@ endif
 ifeq ($(CONFIG_BCM2709_DT),y)
    RPI_DT_OVERLAYS=y
 endif
+ifeq ($(CONFIG_ARCH_BCM2835),y)
+   RPI_DT_OVERLAYS=y
+endif
 
 subdir-$(RPI_DT_OVERLAYS)  += overlays
 

arch/arm/boot/dts/bcm2835-rpi-b-plus.dts

@@ -4,27 +4,40 @@
 / {
 	compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
 	model = "Raspberry Pi Model B+";
+};
+
+&gpio {
+	i2s_pins: i2s {
+		brcm,pins = <18 19 20 21>;
+		brcm,function = <4>; /* alt0 */
+	};
+};
 
-	leds {
-		act {
-			gpios = <&gpio 47 0>;
-		};
+&i2s {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_pins>;
+};
+
+&act_led {
+	gpios = <&gpio 47 0>;
+};
 
-		pwr {
-			label = "PWR";
-			gpios = <&gpio 35 0>;
-			default-state = "keep";
-			linux,default-trigger = "default-on";
-		};
+&leds {
+	pwr_led: pwr {
+		label = "led1";
+		linux,default-trigger = "input";
+		gpios = <&gpio 35 0>;
 	};
 };
 
-&gpio {
-	pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>;
+/ {
+	__overrides__ {
+		act_led_gpio = <&act_led>,"gpios:4";
+		act_led_activelow = <&act_led>,"gpios:8";
 
-	/* I2S interface */
-	i2s_alt0: i2s_alt0 {
-		brcm,pins = <18 19 20 21>;
-		brcm,function = <4>; /* alt0 */
+		pwr_led_gpio = <&pwr_led>,"gpios:4";
+		pwr_led_activelow = <&pwr_led>,"gpios:8";
+		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
 	};
 };

arch/arm/boot/dts/bcm2835-rpi-b.dts

@@ -5,19 +5,28 @@
 	compatible = "raspberrypi,model-b", "brcm,bcm2835";
 	model = "Raspberry Pi Model B";
 
-	leds {
-		act {
-			gpios = <&gpio 16 1>;
-		};
-	};
 };
 
 &gpio {
-	pinctrl-0 = <&gpioout &alt0 &i2s_alt2 &alt3>;
-
-	/* I2S interface */
-	i2s_alt2: i2s_alt2 {
+	i2s_pins: i2s {
 		brcm,pins = <28 29 30 31>;
-		brcm,function = <6>; /* alt2 */
+		brcm,function = <4>; /* alt0 */
+	};
+};
+
+&i2s {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_pins>;
+};
+
+&act_led {
+	gpios = <&gpio 16 1>;
+};
+
+/ {
+	__overrides__ {
+		act_led_gpio = <&act_led>,"gpios:4";
+		act_led_activelow = <&act_led>,"gpios:8";
 	};
 };

arch/arm/boot/dts/bcm2835-rpi.dtsi

@@ -1,53 +1,91 @@
 /include/ "bcm2835.dtsi"
 
 / {
+	/* This is left here in case u-boot needs it */
 	memory {
 		reg = <0 0x10000000>;
 	};
 
-	leds {
+	aliases {
+		soc = &soc;
+		spi0 = &spi0;
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2s  = &i2s;
+		gpio = &gpio;
+		intc = &intc;
+		leds = &leds;
+		sound = &sound;
+	};
+
+	leds: leds {
 		compatible = "gpio-leds";
 
-		act {
-			label = "ACT";
-			default-state = "keep";
-			linux,default-trigger = "heartbeat";
+		act_led: act {
+			label = "led0";
+			linux,default-trigger = "mmc0";
 		};
 	};
 
 	/* Onboard audio */
 	audio: audio {
 		compatible = "brcm,bcm2835-audio";
 		brcm,pwm-channels = <8>;
+		status = "disabled";
+	};
+
+	/* External sound card */
+	sound: sound {
 	};
 };
 
 &gpio {
-	pinctrl-names = "default";
+	spi0_pins: spi0_pins {
+		brcm,pins = <7 8 9 10 11>;
+		brcm,function = <4>; /* alt0 */
+	};
 
-	gpioout: gpioout {
-		brcm,pins = <6>;
-		brcm,function = <1>; /* GPIO out */
+	i2c0_pins: i2c0 {
+		brcm,pins = <0 1>;
+		brcm,function = <4>;
 	};
 
-	alt0: alt0 {
-		brcm,pins = <0 1 2 3 4 5 7 8 9 10 11 14 15 40 45>;
-		brcm,function = <4>; /* alt0 */
+	i2c1_pins: i2c1 {
+		brcm,pins = <2 3>;
+		brcm,function = <4>;
 	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
 
-	alt3: alt3 {
-		brcm,pins = <48 49 50 51 52 53>;
-		brcm,function = <7>; /* alt3 */
+	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 {
-	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
 	clock-frequency = <100000>;
 };
 
 &i2c1 {
-	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
 	clock-frequency = <100000>;
 };
 
@@ -59,3 +97,16 @@
 &fb {
 	status = "okay";
 };
+
+/ {
+	__overrides__ {
+		i2s = <&i2s>,"status";
+		spi = <&spi0>,"status";
+		i2c0 = <&i2c0>,"status";
+		i2c1 = <&i2c1>,"status";
+		i2c0_baudrate = <&i2c0>,"clock-frequency:0";
+		i2c1_baudrate = <&i2c1>,"clock-frequency:0";
+		act_led_trigger = <&act_led>,"linux,default-trigger";
+		audio = <&audio>,"status";
+	};
+};

arch/arm/boot/dts/bcm2835.dtsi

@@ -9,7 +9,7 @@
 		bootargs = "";
 	};
 
-	soc {
+	soc: soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -51,12 +51,12 @@
 			#interrupt-cells = <2>;
 		};
 
-		watchdog@7e100000 {
+		watchdog: watchdog@7e100000 {
 			compatible = "brcm,bcm2835-pm-wdt";
 			reg = <0x7e100000 0x28>;
 		};
 
-		rng@7e104000 {
+		random: rng@7e104000 {
 			compatible = "brcm,bcm2835-rng";
 			reg = <0x7e104000 0x10>;
 		};
@@ -90,7 +90,7 @@
 			#interrupt-cells = <2>;
 		};
 
-		uart@7e201000 {
+		uart0: uart@7e201000 {
 			compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
 			reg = <0x7e201000 0x1000>;
 			interrupts = <2 25>;
@@ -109,7 +109,7 @@
 			status = "disabled";
 		};
 
-		spi: spi@7e204000 {
+		spi0: spi@7e204000 {
 			compatible = "brcm,bcm2835-spi";
 			reg = <0x7e204000 0x1000>;
 			interrupts = <2 22>;
@@ -150,7 +150,7 @@
 			status = "disabled";
 		};
 
-		usb@7e980000 {
+		usb: usb@7e980000 {
 			compatible = "brcm,bcm2835-usb";
 			reg = <0x7e980000 0x10000>;
 			interrupts = <1 9>;

arch/arm/boot/dts/overlays/Makefile

@@ -8,6 +8,9 @@ endif
 ifeq ($(CONFIG_BCM2709_DT),y)
    RPI_DT_OVERLAYS=y
 endif
+ifeq ($(CONFIG_ARCH_BCM2835),y)
+   RPI_DT_OVERLAYS=y
+endif
 
 dtb-$(RPI_DT_OVERLAYS) += ads7846-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb