167 lines
5.0 KiB
Plaintext
167 lines
5.0 KiB
Plaintext
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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.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-Processor 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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1.l) The General Purpose I/O (GPIO) controller node
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see Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt
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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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