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authorAlbert Herranz <albert_herranz@yahoo.es>2009-12-12 06:31:35 (GMT)
committerGrant Likely <grant.likely@secretlab.ca>2009-12-13 05:24:26 (GMT)
commit86ad53f8aa051f5cf8783e28a804adc3ebc391f7 (patch)
tree42aef7842ea9973a25c4d1e154ae0855b5c39704 /Documentation/powerpc
parent26054c9541ccc562e0aec05e8c1f19bf85328bcf (diff)
powerpc: gamecube: device tree
Add a device tree source file for the Nintendo GameCube video game console. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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+
+Nintendo GameCube device tree
+=============================
+
+1) The "flipper" node
+
+ This node represents the multi-function "Flipper" chip, which packages
+ many of the devices found in the Nintendo GameCube.
+
+ Required properties:
+
+ - compatible : Should be "nintendo,flipper"
+
+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,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,flipper-pi"
+ - reg : should contain the PI registers location and length
+
+1.b.i) The "Flipper" interrupt controller node
+
+ Represents the interrupt controller within the "Flipper" chip.
+ The node for the "Flipper" interrupt controller must be placed under
+ the PI node.
+
+ Required properties:
+
+ - compatible : should be "nintendo,flipper-pic"
+
+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,flipper-dsp"
+ - reg : should contain the DSP registers location and length
+ - interrupts : should contain the DSP interrupt
+
+1.c.i) The Auxiliary RAM (ARAM) node
+
+ Represents the non cpu-addressable ram designed mainly to store audio
+ related information.
+ The ARAM node must be placed under the DSP node.
+
+ Required properties:
+
+ - compatible : should be "nintendo,flipper-aram"
+ - reg : should contain the ARAM start (zero-based) and length
+
+1.d) The Disk Interface (DI) node
+
+ Represents the interface used to communicate with mass storage devices.
+
+ Required properties:
+
+ - compatible : should be "nintendo,flipper-di"
+ - reg : should contain the DI registers location and length
+ - interrupts : should contain the DI 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,flipper-ai"
+ - reg : should contain the AI registers location and length
+ - interrupts : should contain the AI interrupt
+
+1.f) 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,flipper-si"
+ - reg : should contain the SI registers location and length
+ - interrupts : should contain the SI interrupt
+
+1.g) The External Interface (EXI) node
+
+ Represents the multi-channel SPI-like interface.
+
+ Required properties:
+
+ - compatible : should be "nintendo,flipper-exi"
+ - reg : should contain the EXI registers location and length
+ - interrupts : should contain the EXI interrupt
+

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