162306a36Sopenharmony_ci 262306a36Sopenharmony_ciNintendo GameCube device tree 362306a36Sopenharmony_ci============================= 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci1) The "flipper" node 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci This node represents the multi-function "Flipper" chip, which packages 862306a36Sopenharmony_ci many of the devices found in the Nintendo GameCube. 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci Required properties: 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci - compatible : Should be "nintendo,flipper" 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci1.a) The Video Interface (VI) node 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci Represents the interface between the graphics processor and a external 1762306a36Sopenharmony_ci video encoder. 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci Required properties: 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-vi" 2262306a36Sopenharmony_ci - reg : should contain the VI registers location and length 2362306a36Sopenharmony_ci - interrupts : should contain the VI interrupt 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci1.b) The Processor Interface (PI) node 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci Represents the data and control interface between the main processor 2862306a36Sopenharmony_ci and graphics and audio processor. 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci Required properties: 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-pi" 3362306a36Sopenharmony_ci - reg : should contain the PI registers location and length 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci1.b.i) The "Flipper" interrupt controller node 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci Represents the interrupt controller within the "Flipper" chip. 3862306a36Sopenharmony_ci The node for the "Flipper" interrupt controller must be placed under 3962306a36Sopenharmony_ci the PI node. 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci Required properties: 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-pic" 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_ci1.c) The Digital Signal Processor (DSP) node 4662306a36Sopenharmony_ci 4762306a36Sopenharmony_ci Represents the digital signal processor interface, designed to offload 4862306a36Sopenharmony_ci audio related tasks. 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_ci Required properties: 5162306a36Sopenharmony_ci 5262306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-dsp" 5362306a36Sopenharmony_ci - reg : should contain the DSP registers location and length 5462306a36Sopenharmony_ci - interrupts : should contain the DSP interrupt 5562306a36Sopenharmony_ci 5662306a36Sopenharmony_ci1.c.i) The Auxiliary RAM (ARAM) node 5762306a36Sopenharmony_ci 5862306a36Sopenharmony_ci Represents the non cpu-addressable ram designed mainly to store audio 5962306a36Sopenharmony_ci related information. 6062306a36Sopenharmony_ci The ARAM node must be placed under the DSP node. 6162306a36Sopenharmony_ci 6262306a36Sopenharmony_ci Required properties: 6362306a36Sopenharmony_ci 6462306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-aram" 6562306a36Sopenharmony_ci - reg : should contain the ARAM start (zero-based) and length 6662306a36Sopenharmony_ci 6762306a36Sopenharmony_ci1.d) The Disk Interface (DI) node 6862306a36Sopenharmony_ci 6962306a36Sopenharmony_ci Represents the interface used to communicate with mass storage devices. 7062306a36Sopenharmony_ci 7162306a36Sopenharmony_ci Required properties: 7262306a36Sopenharmony_ci 7362306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-di" 7462306a36Sopenharmony_ci - reg : should contain the DI registers location and length 7562306a36Sopenharmony_ci - interrupts : should contain the DI interrupt 7662306a36Sopenharmony_ci 7762306a36Sopenharmony_ci1.e) The Audio Interface (AI) node 7862306a36Sopenharmony_ci 7962306a36Sopenharmony_ci Represents the interface to the external 16-bit stereo digital-to-analog 8062306a36Sopenharmony_ci converter. 8162306a36Sopenharmony_ci 8262306a36Sopenharmony_ci Required properties: 8362306a36Sopenharmony_ci 8462306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-ai" 8562306a36Sopenharmony_ci - reg : should contain the AI registers location and length 8662306a36Sopenharmony_ci - interrupts : should contain the AI interrupt 8762306a36Sopenharmony_ci 8862306a36Sopenharmony_ci1.f) The Serial Interface (SI) node 8962306a36Sopenharmony_ci 9062306a36Sopenharmony_ci Represents the interface to the four single bit serial interfaces. 9162306a36Sopenharmony_ci The SI is a proprietary serial interface used normally to control gamepads. 9262306a36Sopenharmony_ci It's NOT a RS232-type interface. 9362306a36Sopenharmony_ci 9462306a36Sopenharmony_ci Required properties: 9562306a36Sopenharmony_ci 9662306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-si" 9762306a36Sopenharmony_ci - reg : should contain the SI registers location and length 9862306a36Sopenharmony_ci - interrupts : should contain the SI interrupt 9962306a36Sopenharmony_ci 10062306a36Sopenharmony_ci1.g) The External Interface (EXI) node 10162306a36Sopenharmony_ci 10262306a36Sopenharmony_ci Represents the multi-channel SPI-like interface. 10362306a36Sopenharmony_ci 10462306a36Sopenharmony_ci Required properties: 10562306a36Sopenharmony_ci 10662306a36Sopenharmony_ci - compatible : should be "nintendo,flipper-exi" 10762306a36Sopenharmony_ci - reg : should contain the EXI registers location and length 10862306a36Sopenharmony_ci - interrupts : should contain the EXI interrupt 10962306a36Sopenharmony_ci 110