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Commit 7a09116c authored by Albert Herranz's avatar Albert Herranz Committed by Grant Likely
Browse files

powerpc: wii: device tree 



Add a device tree source file for the Nintendo Wii video game console.

Signed-off-by: default avatarAlbert Herranz <albert_herranz@yahoo.es>
Acked-by: default avatarSegher Boessenkool <segher@kernel.crashing.org>
Acked-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 86c3d131

Documentation/powerpc/dts-bindings/nintendo/wii.txt

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Nintendo Wii device tree

========================



0) The root node



  This node represents the Nintendo Wii video game console.



  Required properties:



   - model : Should be "nintendo,wii"

   - compatible : Should be "nintendo,wii"



1) The "hollywood" node



  This node represents the multi-function "Hollywood" chip, which packages

  many of the devices found in the Nintendo Wii.



  Required properties:



   - compatible : Should be "nintendo,hollywood"



1.a) The Video Interface (VI) node



  Represents the interface between the graphics processor and a external

  video encoder.



  Required properties:



   - compatible : should be "nintendo,hollywood-vi","nintendo,flipper-vi"

   - reg : should contain the VI registers location and length

   - interrupts : should contain the VI interrupt



1.b) The Processor Interface (PI) node



  Represents the data and control interface between the main processor

  and graphics and audio processor.



  Required properties:



  - compatible : should be "nintendo,hollywood-pi","nintendo,flipper-pi"

  - reg : should contain the PI registers location and length



1.b.i) The "Flipper" interrupt controller node



  Represents the "Flipper" interrupt controller within the "Hollywood" chip.

  The node for the "Flipper" interrupt controller must be placed under

  the PI node.



  Required properties:



  - #interrupt-cells : <1>

  - compatible : should be "nintendo,flipper-pic"

  - interrupt-controller



1.c) The Digital Signal Procesor (DSP) node



  Represents the digital signal processor interface, designed to offload

  audio related tasks.



  Required properties:



   - compatible : should be "nintendo,hollywood-dsp","nintendo,flipper-dsp"

   - reg : should contain the DSP registers location and length

   - interrupts : should contain the DSP interrupt



1.d) The Serial Interface (SI) node



  Represents the interface to the four single bit serial interfaces.

  The SI is a proprietary serial interface used normally to control gamepads.

  It's NOT a RS232-type interface.



  Required properties:



   - compatible : should be "nintendo,hollywood-si","nintendo,flipper-si"

   - reg : should contain the SI registers location and length

   - interrupts : should contain the SI interrupt



1.e) The Audio Interface (AI) node



  Represents the interface to the external 16-bit stereo digital-to-analog

  converter.



  Required properties:



   - compatible : should be "nintendo,hollywood-ai","nintendo,flipper-ai"

   - reg : should contain the AI registers location and length

   - interrupts : should contain the AI interrupt



1.f) The External Interface (EXI) node



  Represents the multi-channel SPI-like interface.



  Required properties:



   - compatible : should be "nintendo,hollywood-exi","nintendo,flipper-exi"

   - reg : should contain the EXI registers location and length

   - interrupts : should contain the EXI interrupt



1.g) The Open Host Controller Interface (OHCI) nodes



  Represent the USB 1.x Open Host Controller Interfaces.



  Required properties:



   - compatible : should be "nintendo,hollywood-usb-ohci","usb-ohci"

   - reg : should contain the OHCI registers location and length

   - interrupts : should contain the OHCI interrupt



1.h) The Enhanced Host Controller Interface (EHCI) node



  Represents the USB 2.0 Enhanced Host Controller Interface.



  Required properties:



   - compatible : should be "nintendo,hollywood-usb-ehci","usb-ehci"

   - reg : should contain the EHCI registers location and length

   - interrupts : should contain the EHCI interrupt



1.i) The Secure Digital Host Controller Interface (SDHCI) nodes



  Represent the Secure Digital Host Controller Interfaces.



  Required properties:



   - compatible : should be "nintendo,hollywood-sdhci","sdhci"

   - reg : should contain the SDHCI registers location and length

   - interrupts : should contain the SDHCI interrupt



1.j) The Inter-Processsor Communication (IPC) node



  Represent the Inter-Processor Communication interface. This interface

  enables communications between the Broadway and the Starlet processors.



   - compatible : should be "nintendo,hollywood-ipc"

   - reg : should contain the IPC registers location and length

   - interrupts : should contain the IPC interrupt



1.k) The "Hollywood" interrupt controller node



  Represents the "Hollywood" interrupt controller within the

  "Hollywood" chip.



  Required properties:



  - #interrupt-cells : <1>

  - compatible : should be "nintendo,hollywood-pic"

  - reg : should contain the controller registers location and length

  - interrupt-controller

  - interrupts : should contain the cascade interrupt of the "flipper" pic

  - interrupt-parent: should contain the phandle of the "flipper" pic



1.l) The General Purpose I/O (GPIO) controller node



  Represents the dual access 32 GPIO controller interface.



  Required properties:



  - #gpio-cells : <2>

  - compatible : should be "nintendo,hollywood-gpio"

  - reg : should contain the IPC registers location and length

  - gpio-controller



1.m) The control node



  Represents the control interface used to setup several miscellaneous

  settings of the "Hollywood" chip like boot memory mappings, resets,

  disk interface mode, etc.



  Required properties:



   - compatible : should be "nintendo,hollywood-control"

   - reg : should contain the control registers location and length



1.n) The Disk Interface (DI) node



  Represents the interface used to communicate with mass storage devices.



  Required properties:



   - compatible : should be "nintendo,hollywood-di"

   - reg : should contain the DI registers location and length

   - interrupts : should contain the DI interrupt

arch/powerpc/boot/dts/wii.dts

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/*

 * arch/powerpc/boot/dts/wii.dts

 *

 * Nintendo Wii platform device tree source

 * Copyright (C) 2008-2009 The GameCube Linux Team

 * Copyright (C) 2008,2009 Albert Herranz

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 */



/dts-v1/;



/*

 * This is commented-out for now.

 * Until a later patch is merged, the kernel can use only the first

 * contiguous RAM range and will BUG() if the memreserve is outside

 * that range.

 */

/*/memreserve/ 0x10000000 0x0004000;*/	/* DSP RAM */



/ {

	model = "nintendo,wii";

	compatible = "nintendo,wii";

	#address-cells = <1>;

	#size-cells = <1>;



	chosen {

		bootargs = "root=/dev/mmcblk0p2 rootwait udbg-immortal";

	};



	memory {

		device_type = "memory";

		reg = <0x00000000 0x01800000	/* MEM1 24MB 1T-SRAM */

		       0x10000000 0x04000000>;	/* MEM2 64MB GDDR3 */

	};



	cpus {

		#address-cells = <1>;

		#size-cells = <0>;



		PowerPC,broadway@0 {

			device_type = "cpu";

			reg = <0>;

			clock-frequency = <729000000>; /* 729MHz */

			bus-frequency = <243000000>; /* 243MHz core-to-bus 3x */

			timebase-frequency = <60750000>; /* 243MHz / 4 */

			i-cache-line-size = <32>;

			d-cache-line-size = <32>;

			i-cache-size = <32768>;

			d-cache-size = <32768>;

		};

	};



	/* devices contained in the hollywood chipset */

	hollywood {

		#address-cells = <1>;

		#size-cells = <1>;

		compatible = "nintendo,hollywood";

                ranges = <0x0c000000 0x0c000000 0x01000000

			  0x0d000000 0x0d000000 0x00800000

			  0x0d800000 0x0d800000 0x00800000>;

		interrupt-parent = <&PIC0>;



		video@0c002000 {

			compatible = "nintendo,hollywood-vi",

					"nintendo,flipper-vi";

			reg = <0x0c002000 0x100>;

			interrupts = <8>;

		};



		processor-interface@0c003000 {

			compatible = "nintendo,hollywood-pi",

					"nintendo,flipper-pi";

			reg = <0x0c003000 0x100>;



			PIC0: pic0 {

				#interrupt-cells = <1>;

				compatible = "nintendo,flipper-pic";

				interrupt-controller;

			};

		};



		dsp@0c005000 {

			#address-cells = <1>;

			#size-cells = <1>;

			compatible = "nintendo,hollywood-dsp",

					"nintendo,flipper-dsp";

			reg = <0x0c005000 0x200>;

			interrupts = <6>;

		};



		gamepad-controller@0d006400 {

			compatible = "nintendo,hollywood-si",

					"nintendo,flipper-si";

			reg = <0x0d006400 0x100>;

			interrupts = <3>;

		};



		audio@0c006c00 {

			compatible = "nintendo,hollywood-ai",

					"nintendo,flipper-ai";

			reg = <0x0d006c00 0x20>;

			interrupts = <6>;

		};



		/* External Interface bus */

		exi@0d006800 {

			compatible = "nintendo,hollywood-exi",

					"nintendo,flipper-exi";

			reg = <0x0d006800 0x40>;

			virtual-reg = <0x0d006800>;

			interrupts = <4>;

		};



		usb@0d040000 {

			compatible = "nintendo,hollywood-usb-ehci",

					"usb-ehci";

			reg = <0x0d040000 0x100>;

			interrupts = <4>;

			interrupt-parent = <&PIC1>;

		};



		usb@0d050000 {

			compatible = "nintendo,hollywood-usb-ohci",

					"usb-ohci";

			reg = <0x0d050000 0x100>;

			interrupts = <5>;

			interrupt-parent = <&PIC1>;

		};



		usb@0d060000 {

			compatible = "nintendo,hollywood-usb-ohci",

					"usb-ohci";

			reg = <0x0d060000 0x100>;

			interrupts = <6>;

			interrupt-parent = <&PIC1>;

		};



		sd@0d070000 {

			compatible = "nintendo,hollywood-sdhci",

					"sdhci";

			reg = <0x0d070000 0x200>;

			interrupts = <7>;

			interrupt-parent = <&PIC1>;

		};



		sdio@0d080000 {

			compatible = "nintendo,hollywood-sdhci",

					"sdhci";

			reg = <0x0d080000 0x200>;

			interrupts = <8>;

			interrupt-parent = <&PIC1>;

		};



		ipc@0d000000 {

			compatible = "nintendo,hollywood-ipc";

			reg = <0x0d000000 0x10>;

			interrupts = <30>;

			interrupt-parent = <&PIC1>;

		};



		PIC1: pic1@0d800030 {

			#interrupt-cells = <1>;

			compatible = "nintendo,hollywood-pic";

			reg = <0x0d800030 0x10>;

			interrupt-controller;

			interrupts = <14>;

		};



		GPIO: gpio@0d8000c0 {

			#gpio-cells = <2>;

			compatible = "nintendo,hollywood-gpio";

			reg = <0x0d8000c0 0x40>;

			gpio-controller;



			/*

			 * This is commented out while a standard binding

			 * for i2c over gpio is defined.

			 */

			/*

			i2c-video {

				#address-cells = <1>;

				#size-cells = <0>;

			        compatible = "i2c-gpio";



			        gpios = <&GPIO 15 0

			                 &GPIO 14 0>;

			        clock-frequency = <250000>;

				no-clock-stretching;

			        scl-is-open-drain;

			        sda-is-open-drain;

			        sda-enforce-dir;



			        AVE: audio-video-encoder@70 {

			                compatible = "nintendo,wii-audio-video-encoder";

			                reg = <0x70>;

			        };

			};

			*/

		};



		control@0d800100 {

			compatible = "nintendo,hollywood-control";

			reg = <0x0d800100 0x300>;

		};



		disk@0d806000 {

			compatible = "nintendo,hollywood-di";

			reg = <0x0d806000 0x40>;

			interrupts = <2>;

		};

	};

};