forked from Minki/linux
110 lines
3.0 KiB
Plaintext
110 lines
3.0 KiB
Plaintext
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Nintendo GameCube device tree
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=============================
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1) The "flipper" node
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This node represents the multi-function "Flipper" chip, which packages
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many of the devices found in the Nintendo GameCube.
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Required properties:
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- compatible : Should be "nintendo,flipper"
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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,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,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 interrupt controller within the "Flipper" 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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- compatible : should be "nintendo,flipper-pic"
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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,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.c.i) The Auxiliary RAM (ARAM) node
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Represents the non cpu-addressable ram designed mainly to store audio
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related information.
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The ARAM node must be placed under the DSP node.
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Required properties:
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- compatible : should be "nintendo,flipper-aram"
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- reg : should contain the ARAM start (zero-based) and length
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1.d) 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,flipper-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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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,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 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,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.g) 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,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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