BCM270X_DT: Use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi

The mainline Device Tree files are quite close to downstream now.
Let's use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi as base files
for our dts files.

Mainline dts files are based on these files:

          bcm2835-rpi.dtsi
  bcm2835.dtsi    bcm2836.dtsi
          bcm283x.dtsi

Current downstream are based on these:

  bcm2708.dtsi    bcm2709.dtsi    bcm2710.dtsi
             bcm2708_common.dtsi

This patch introduces this dependency:

  bcm2708.dtsi    bcm2709.dtsi
          bcm2708-rpi.dtsi
          bcm270x.dtsi
  bcm2835.dtsi    bcm2836.dtsi
          bcm283x.dtsi

And:
          bcm2710.dtsi
          bcm2708-rpi.dtsi
          bcm270x.dtsi
          bcm283x.dtsi

bcm270x.dtsi contains the downstream bcm283x.dtsi diff.
bcm2708-rpi.dtsi is the downstream version of bcm2835-rpi.dtsi.

Other changes:
- The led node has moved from /soc/leds to /leds. This is not a problem
  since the label is used to reference it.
- The clk_osc reg property changes from 6 to 3.
- The gpu nodes has their interrupt property set in the base file.
- the clocks label does not point to the /clocks node anymore, but
  points to the cprman node. This is not a problem since the overlays
  that use the clock node refer to it directly: target-path = "/clocks";
- some nodes now have 2 labels since mainline and downstream differs in
  this respect: cprman/clocks, spi0/spi, gpu/vc4.
- some nodes doesn't have an explicit status = "okay" since they're not
  disabled in the base file: watchdog and random.
- gpiomem doesn't need an explicit status = "okay".
- bcm2708-rpi-cm.dts got the hpd-gpios property from bcm2708_common.dtsi,
  it's now set directly in that file.
- bcm2709-rpi-2-b.dts has the timer node moved from /soc/timer to /timer.
- Removed clock-frequency property on the bcm{2709,2710}.dtsi timer nodes.

Signed-off-by: Noralf Trønnes <[email protected]>

Author: notro

arch/arm/boot/dts/bcm2708-rpi-b-plus.dts

@@ -98,15 +98,10 @@
 };
 
 &i2s {
-	#sound-dai-cells = <0>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2s_pins>;
 };
 
-&random {
-	status = "okay";
-};
-
 &leds {
 	act_led: act {
 		label = "led0";

arch/arm/boot/dts/bcm2708-rpi-b.dts

@@ -98,15 +98,10 @@
 };
 
 &i2s {
-	#sound-dai-cells = <0>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2s_pins>;
 };
 
-&random {
-	status = "okay";
-};
-
 &leds {
 	act_led: act {
 		label = "led0";

arch/arm/boot/dts/bcm2708-rpi-cm.dts

@@ -81,13 +81,12 @@
 };
 
 &i2s {
-	#sound-dai-cells = <0>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2s_pins>;
 };
 
-&random {
-	status = "okay";
+&hdmi {
+	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
 };
 
 / {

arch/arm/boot/dts/bcm2708-rpi.dtsi

@@ -0,0 +1,105 @@
+/* Downstream version of bcm2835-rpi.dtsi */
+
+#include <dt-bindings/power/raspberrypi-power.h>
+
+/ {
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x0>;
+	};
+
+	aliases {
+		audio = &audio;
+		aux = &aux;
+		sound = &sound;
+		soc = &soc;
+		dma = &dma;
+		intc = &intc;
+		watchdog = &watchdog;
+		random = &random;
+		mailbox = &mailbox;
+		gpio = &gpio;
+		uart0 = &uart0;
+		sdhost = &sdhost;
+		i2s = &i2s;
+		spi0 = &spi0;
+		i2c0 = &i2c0;
+		uart1 = &uart1;
+		spi1 = &spi1;
+		spi2 = &spi2;
+		mmc = &mmc;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		usb = &usb;
+		leds = &leds;
+		fb = &fb;
+		vchiq = &vchiq;
+		thermal = &thermal;
+	};
+
+	leds: leds {
+		compatible = "gpio-leds";
+	};
+
+	soc {
+		gpiomem {
+			compatible = "brcm,bcm2835-gpiomem";
+			reg = <0x7e200000 0x1000>;
+		};
+
+		firmware: firmware {
+			compatible = "raspberrypi,bcm2835-firmware";
+			mboxes = <&mailbox>;
+		};
+
+		power: power {
+			compatible = "raspberrypi,bcm2835-power";
+			firmware = <&firmware>;
+			#power-domain-cells = <1>;
+		};
+
+		fb: fb {
+			compatible = "brcm,bcm2708-fb";
+			firmware = <&firmware>;
+			status = "disabled";
+		};
+
+		vchiq: vchiq {
+			compatible = "brcm,bcm2835-vchiq";
+			reg = <0x7e00b840 0xf>;
+			interrupts = <0 2>;
+			cache-line-size = <32>;
+			firmware = <&firmware>;
+		};
+
+		thermal: thermal {
+			compatible = "brcm,bcm2835-thermal";
+			firmware = <&firmware>;
+		};
+
+		/* Onboard audio */
+		audio: audio {
+			compatible = "brcm,bcm2835-audio";
+			brcm,pwm-channels = <8>;
+			status = "disabled";
+		};
+
+		/* External sound card */
+		sound: sound {
+			status = "disabled";
+		};
+
+	};
+
+	__overrides__ {
+		cache_line_size = <&vchiq>, "cache-line-size:0";
+	};
+};
+
+&dma {
+	brcm,dma-channel-mask = <0x7f34>;
+};
+
+&hdmi {
+	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
+};

arch/arm/boot/dts/bcm2708.dtsi

@@ -1,40 +1,22 @@
-#include "bcm2708_common.dtsi"
+#include "bcm2835.dtsi"
+#include "bcm270x.dtsi"
+#include "bcm2708-rpi.dtsi"
 
 / {
 	compatible = "brcm,bcm2708";
 	model = "BCM2708";
 
-	chosen {
-		/* No padding required - the boot loader can do that. */
-		bootargs = "";
-	};
-
 	soc {
 		ranges = <0x7e000000 0x20000000 0x01000000>;
+		/delete-property/ dma-ranges;
 
 		timer@7e003000 {
 			compatible = "brcm,bcm2835-system-timer";
 			reg = <0x7e003000 0x1000>;
 			interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
 			clock-frequency = <1000000>;
 		};
-
-		arm-pmu {
-			compatible = "arm,arm1176-pmu";
-		};
-
-		gpiomem {
-			compatible = "brcm,bcm2835-gpiomem";
-			reg = <0x7e200000 0x1000>;
-			status = "okay";
-		};
 	};
-};
-
-&intc {
-	compatible = "brcm,bcm2835-armctrl-ic";
-};
 
-&watchdog {
-	status = "okay";
+	/delete-node/ cpus;
 };