powerpc: wii: device tree
Add a device tree source file for the Nintendo Wii video game console. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Albert Herranz
Grant Likely
parent
86c3d131ce
commit
7a09116c01
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Nintendo Wii device tree
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========================
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0) The root node
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This node represents the Nintendo Wii video game console.
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Required properties:
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- model : Should be "nintendo,wii"
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- compatible : Should be "nintendo,wii"
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1) The "hollywood" node
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This node represents the multi-function "Hollywood" chip, which packages
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many of the devices found in the Nintendo Wii.
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Required properties:
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- compatible : Should be "nintendo,hollywood"
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1.a) The Video Interface (VI) node
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Represents the interface between the graphics processor and a external
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video encoder.
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Required properties:
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- compatible : should be "nintendo,hollywood-vi","nintendo,flipper-vi"
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- reg : should contain the VI registers location and length
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- interrupts : should contain the VI interrupt
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1.b) The Processor Interface (PI) node
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Represents the data and control interface between the main processor
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and graphics and audio processor.
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Required properties:
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- compatible : should be "nintendo,hollywood-pi","nintendo,flipper-pi"
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- reg : should contain the PI registers location and length
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1.b.i) The "Flipper" interrupt controller node
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Represents the "Flipper" interrupt controller within the "Hollywood" chip.
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The node for the "Flipper" interrupt controller must be placed under
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the PI node.
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Required properties:
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- #interrupt-cells : <1>
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- compatible : should be "nintendo,flipper-pic"
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- interrupt-controller
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1.c) The Digital Signal Procesor (DSP) node
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Represents the digital signal processor interface, designed to offload
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audio related tasks.
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Required properties:
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- compatible : should be "nintendo,hollywood-dsp","nintendo,flipper-dsp"
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- reg : should contain the DSP registers location and length
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- interrupts : should contain the DSP interrupt
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1.d) The Serial Interface (SI) node
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Represents the interface to the four single bit serial interfaces.
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The SI is a proprietary serial interface used normally to control gamepads.
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It's NOT a RS232-type interface.
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Required properties:
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- compatible : should be "nintendo,hollywood-si","nintendo,flipper-si"
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- reg : should contain the SI registers location and length
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- interrupts : should contain the SI interrupt
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1.e) The Audio Interface (AI) node
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Represents the interface to the external 16-bit stereo digital-to-analog
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converter.
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Required properties:
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- compatible : should be "nintendo,hollywood-ai","nintendo,flipper-ai"
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- reg : should contain the AI registers location and length
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- interrupts : should contain the AI interrupt
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1.f) The External Interface (EXI) node
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Represents the multi-channel SPI-like interface.
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Required properties:
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- compatible : should be "nintendo,hollywood-exi","nintendo,flipper-exi"
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- reg : should contain the EXI registers location and length
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- interrupts : should contain the EXI interrupt
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1.g) The Open Host Controller Interface (OHCI) nodes
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Represent the USB 1.x Open Host Controller Interfaces.
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Required properties:
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- compatible : should be "nintendo,hollywood-usb-ohci","usb-ohci"
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- reg : should contain the OHCI registers location and length
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- interrupts : should contain the OHCI interrupt
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1.h) The Enhanced Host Controller Interface (EHCI) node
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Represents the USB 2.0 Enhanced Host Controller Interface.
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Required properties:
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- compatible : should be "nintendo,hollywood-usb-ehci","usb-ehci"
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- reg : should contain the EHCI registers location and length
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- interrupts : should contain the EHCI interrupt
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1.i) The Secure Digital Host Controller Interface (SDHCI) nodes
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Represent the Secure Digital Host Controller Interfaces.
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Required properties:
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- compatible : should be "nintendo,hollywood-sdhci","sdhci"
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- reg : should contain the SDHCI registers location and length
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- interrupts : should contain the SDHCI interrupt
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1.j) The Inter-Processsor Communication (IPC) node
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Represent the Inter-Processor Communication interface. This interface
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enables communications between the Broadway and the Starlet processors.
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- compatible : should be "nintendo,hollywood-ipc"
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- reg : should contain the IPC registers location and length
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- interrupts : should contain the IPC interrupt
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1.k) The "Hollywood" interrupt controller node
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Represents the "Hollywood" interrupt controller within the
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"Hollywood" chip.
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Required properties:
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- #interrupt-cells : <1>
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- compatible : should be "nintendo,hollywood-pic"
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- reg : should contain the controller registers location and length
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- interrupt-controller
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- interrupts : should contain the cascade interrupt of the "flipper" pic
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- interrupt-parent: should contain the phandle of the "flipper" pic
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1.l) The General Purpose I/O (GPIO) controller node
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Represents the dual access 32 GPIO controller interface.
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Required properties:
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- #gpio-cells : <2>
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- compatible : should be "nintendo,hollywood-gpio"
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- reg : should contain the IPC registers location and length
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- gpio-controller
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1.m) The control node
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Represents the control interface used to setup several miscellaneous
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settings of the "Hollywood" chip like boot memory mappings, resets,
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disk interface mode, etc.
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Required properties:
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- compatible : should be "nintendo,hollywood-control"
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- reg : should contain the control registers location and length
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1.n) The Disk Interface (DI) node
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Represents the interface used to communicate with mass storage devices.
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Required properties:
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- compatible : should be "nintendo,hollywood-di"
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- reg : should contain the DI registers location and length
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- interrupts : should contain the DI interrupt
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@ -0,0 +1,218 @@
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/*
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* arch/powerpc/boot/dts/wii.dts
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*
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* Nintendo Wii platform device tree source
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* Copyright (C) 2008-2009 The GameCube Linux Team
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* Copyright (C) 2008,2009 Albert Herranz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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*/
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/dts-v1/;
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/*
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* This is commented-out for now.
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* Until a later patch is merged, the kernel can use only the first
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* contiguous RAM range and will BUG() if the memreserve is outside
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* that range.
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*/
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/*/memreserve/ 0x10000000 0x0004000;*/ /* DSP RAM */
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/ {
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model = "nintendo,wii";
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compatible = "nintendo,wii";
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#address-cells = <1>;
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#size-cells = <1>;
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chosen {
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bootargs = "root=/dev/mmcblk0p2 rootwait udbg-immortal";
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};
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memory {
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device_type = "memory";
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reg = <0x00000000 0x01800000 /* MEM1 24MB 1T-SRAM */
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0x10000000 0x04000000>; /* MEM2 64MB GDDR3 */
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};
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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PowerPC,broadway@0 {
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device_type = "cpu";
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reg = <0>;
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clock-frequency = <729000000>; /* 729MHz */
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bus-frequency = <243000000>; /* 243MHz core-to-bus 3x */
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timebase-frequency = <60750000>; /* 243MHz / 4 */
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i-cache-line-size = <32>;
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d-cache-line-size = <32>;
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i-cache-size = <32768>;
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d-cache-size = <32768>;
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};
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};
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/* devices contained in the hollywood chipset */
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hollywood {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "nintendo,hollywood";
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ranges = <0x0c000000 0x0c000000 0x01000000
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0x0d000000 0x0d000000 0x00800000
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0x0d800000 0x0d800000 0x00800000>;
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interrupt-parent = <&PIC0>;
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video@0c002000 {
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compatible = "nintendo,hollywood-vi",
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"nintendo,flipper-vi";
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reg = <0x0c002000 0x100>;
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interrupts = <8>;
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};
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processor-interface@0c003000 {
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compatible = "nintendo,hollywood-pi",
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"nintendo,flipper-pi";
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reg = <0x0c003000 0x100>;
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PIC0: pic0 {
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#interrupt-cells = <1>;
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compatible = "nintendo,flipper-pic";
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interrupt-controller;
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};
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};
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dsp@0c005000 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "nintendo,hollywood-dsp",
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"nintendo,flipper-dsp";
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reg = <0x0c005000 0x200>;
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interrupts = <6>;
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};
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gamepad-controller@0d006400 {
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compatible = "nintendo,hollywood-si",
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"nintendo,flipper-si";
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reg = <0x0d006400 0x100>;
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interrupts = <3>;
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};
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audio@0c006c00 {
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compatible = "nintendo,hollywood-ai",
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"nintendo,flipper-ai";
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reg = <0x0d006c00 0x20>;
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interrupts = <6>;
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};
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/* External Interface bus */
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exi@0d006800 {
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compatible = "nintendo,hollywood-exi",
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"nintendo,flipper-exi";
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reg = <0x0d006800 0x40>;
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virtual-reg = <0x0d006800>;
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interrupts = <4>;
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};
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usb@0d040000 {
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compatible = "nintendo,hollywood-usb-ehci",
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"usb-ehci";
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reg = <0x0d040000 0x100>;
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interrupts = <4>;
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interrupt-parent = <&PIC1>;
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};
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usb@0d050000 {
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compatible = "nintendo,hollywood-usb-ohci",
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"usb-ohci";
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reg = <0x0d050000 0x100>;
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interrupts = <5>;
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interrupt-parent = <&PIC1>;
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};
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usb@0d060000 {
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compatible = "nintendo,hollywood-usb-ohci",
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"usb-ohci";
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reg = <0x0d060000 0x100>;
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interrupts = <6>;
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interrupt-parent = <&PIC1>;
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};
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sd@0d070000 {
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compatible = "nintendo,hollywood-sdhci",
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"sdhci";
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reg = <0x0d070000 0x200>;
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interrupts = <7>;
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interrupt-parent = <&PIC1>;
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};
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sdio@0d080000 {
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compatible = "nintendo,hollywood-sdhci",
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"sdhci";
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reg = <0x0d080000 0x200>;
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interrupts = <8>;
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interrupt-parent = <&PIC1>;
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};
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ipc@0d000000 {
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compatible = "nintendo,hollywood-ipc";
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reg = <0x0d000000 0x10>;
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interrupts = <30>;
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interrupt-parent = <&PIC1>;
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};
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PIC1: pic1@0d800030 {
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#interrupt-cells = <1>;
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compatible = "nintendo,hollywood-pic";
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reg = <0x0d800030 0x10>;
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interrupt-controller;
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interrupts = <14>;
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};
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GPIO: gpio@0d8000c0 {
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#gpio-cells = <2>;
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compatible = "nintendo,hollywood-gpio";
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reg = <0x0d8000c0 0x40>;
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gpio-controller;
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/*
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* This is commented out while a standard binding
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* for i2c over gpio is defined.
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*/
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/*
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i2c-video {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "i2c-gpio";
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gpios = <&GPIO 15 0
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&GPIO 14 0>;
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clock-frequency = <250000>;
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no-clock-stretching;
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scl-is-open-drain;
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sda-is-open-drain;
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sda-enforce-dir;
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AVE: audio-video-encoder@70 {
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compatible = "nintendo,wii-audio-video-encoder";
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reg = <0x70>;
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};
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};
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*/
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};
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control@0d800100 {
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compatible = "nintendo,hollywood-control";
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reg = <0x0d800100 0x300>;
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};
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disk@0d806000 {
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compatible = "nintendo,hollywood-di";
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reg = <0x0d806000 0x40>;
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interrupts = <2>;
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};
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};
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};
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