1c66ec88fSEmmanuel Vadot 2c66ec88fSEmmanuel VadotNintendo GameCube device tree 3c66ec88fSEmmanuel Vadot============================= 4c66ec88fSEmmanuel Vadot 5c66ec88fSEmmanuel Vadot1) The "flipper" node 6c66ec88fSEmmanuel Vadot 7c66ec88fSEmmanuel Vadot This node represents the multi-function "Flipper" chip, which packages 8c66ec88fSEmmanuel Vadot many of the devices found in the Nintendo GameCube. 9c66ec88fSEmmanuel Vadot 10c66ec88fSEmmanuel Vadot Required properties: 11c66ec88fSEmmanuel Vadot 12c66ec88fSEmmanuel Vadot - compatible : Should be "nintendo,flipper" 13c66ec88fSEmmanuel Vadot 14c66ec88fSEmmanuel Vadot1.a) The Video Interface (VI) node 15c66ec88fSEmmanuel Vadot 16c66ec88fSEmmanuel Vadot Represents the interface between the graphics processor and a external 17c66ec88fSEmmanuel Vadot video encoder. 18c66ec88fSEmmanuel Vadot 19c66ec88fSEmmanuel Vadot Required properties: 20c66ec88fSEmmanuel Vadot 21c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-vi" 22c66ec88fSEmmanuel Vadot - reg : should contain the VI registers location and length 23c66ec88fSEmmanuel Vadot - interrupts : should contain the VI interrupt 24c66ec88fSEmmanuel Vadot 25c66ec88fSEmmanuel Vadot1.b) The Processor Interface (PI) node 26c66ec88fSEmmanuel Vadot 27c66ec88fSEmmanuel Vadot Represents the data and control interface between the main processor 28c66ec88fSEmmanuel Vadot and graphics and audio processor. 29c66ec88fSEmmanuel Vadot 30c66ec88fSEmmanuel Vadot Required properties: 31c66ec88fSEmmanuel Vadot 32c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-pi" 33c66ec88fSEmmanuel Vadot - reg : should contain the PI registers location and length 34c66ec88fSEmmanuel Vadot 35c66ec88fSEmmanuel Vadot1.b.i) The "Flipper" interrupt controller node 36c66ec88fSEmmanuel Vadot 37c66ec88fSEmmanuel Vadot Represents the interrupt controller within the "Flipper" chip. 38c66ec88fSEmmanuel Vadot The node for the "Flipper" interrupt controller must be placed under 39c66ec88fSEmmanuel Vadot the PI node. 40c66ec88fSEmmanuel Vadot 41c66ec88fSEmmanuel Vadot Required properties: 42c66ec88fSEmmanuel Vadot 43c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-pic" 44c66ec88fSEmmanuel Vadot 45*aa1a8ff2SEmmanuel Vadot1.c) The Digital Signal Processor (DSP) node 46c66ec88fSEmmanuel Vadot 47c66ec88fSEmmanuel Vadot Represents the digital signal processor interface, designed to offload 48c66ec88fSEmmanuel Vadot audio related tasks. 49c66ec88fSEmmanuel Vadot 50c66ec88fSEmmanuel Vadot Required properties: 51c66ec88fSEmmanuel Vadot 52c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-dsp" 53c66ec88fSEmmanuel Vadot - reg : should contain the DSP registers location and length 54c66ec88fSEmmanuel Vadot - interrupts : should contain the DSP interrupt 55c66ec88fSEmmanuel Vadot 56c66ec88fSEmmanuel Vadot1.c.i) The Auxiliary RAM (ARAM) node 57c66ec88fSEmmanuel Vadot 58c66ec88fSEmmanuel Vadot Represents the non cpu-addressable ram designed mainly to store audio 59c66ec88fSEmmanuel Vadot related information. 60c66ec88fSEmmanuel Vadot The ARAM node must be placed under the DSP node. 61c66ec88fSEmmanuel Vadot 62c66ec88fSEmmanuel Vadot Required properties: 63c66ec88fSEmmanuel Vadot 64c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-aram" 65c66ec88fSEmmanuel Vadot - reg : should contain the ARAM start (zero-based) and length 66c66ec88fSEmmanuel Vadot 67c66ec88fSEmmanuel Vadot1.d) The Disk Interface (DI) node 68c66ec88fSEmmanuel Vadot 69c66ec88fSEmmanuel Vadot Represents the interface used to communicate with mass storage devices. 70c66ec88fSEmmanuel Vadot 71c66ec88fSEmmanuel Vadot Required properties: 72c66ec88fSEmmanuel Vadot 73c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-di" 74c66ec88fSEmmanuel Vadot - reg : should contain the DI registers location and length 75c66ec88fSEmmanuel Vadot - interrupts : should contain the DI interrupt 76c66ec88fSEmmanuel Vadot 77c66ec88fSEmmanuel Vadot1.e) The Audio Interface (AI) node 78c66ec88fSEmmanuel Vadot 79c66ec88fSEmmanuel Vadot Represents the interface to the external 16-bit stereo digital-to-analog 80c66ec88fSEmmanuel Vadot converter. 81c66ec88fSEmmanuel Vadot 82c66ec88fSEmmanuel Vadot Required properties: 83c66ec88fSEmmanuel Vadot 84c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-ai" 85c66ec88fSEmmanuel Vadot - reg : should contain the AI registers location and length 86c66ec88fSEmmanuel Vadot - interrupts : should contain the AI interrupt 87c66ec88fSEmmanuel Vadot 88c66ec88fSEmmanuel Vadot1.f) The Serial Interface (SI) node 89c66ec88fSEmmanuel Vadot 90c66ec88fSEmmanuel Vadot Represents the interface to the four single bit serial interfaces. 91c66ec88fSEmmanuel Vadot The SI is a proprietary serial interface used normally to control gamepads. 92c66ec88fSEmmanuel Vadot It's NOT a RS232-type interface. 93c66ec88fSEmmanuel Vadot 94c66ec88fSEmmanuel Vadot Required properties: 95c66ec88fSEmmanuel Vadot 96c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-si" 97c66ec88fSEmmanuel Vadot - reg : should contain the SI registers location and length 98c66ec88fSEmmanuel Vadot - interrupts : should contain the SI interrupt 99c66ec88fSEmmanuel Vadot 100c66ec88fSEmmanuel Vadot1.g) The External Interface (EXI) node 101c66ec88fSEmmanuel Vadot 102c66ec88fSEmmanuel Vadot Represents the multi-channel SPI-like interface. 103c66ec88fSEmmanuel Vadot 104c66ec88fSEmmanuel Vadot Required properties: 105c66ec88fSEmmanuel Vadot 106c66ec88fSEmmanuel Vadot - compatible : should be "nintendo,flipper-exi" 107c66ec88fSEmmanuel Vadot - reg : should contain the EXI registers location and length 108c66ec88fSEmmanuel Vadot - interrupts : should contain the EXI interrupt 109c66ec88fSEmmanuel Vadot 110