| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | |
| 2 | Nintendo GameCube device tree |
| 3 | ============================= |
| 4 | |
| 5 | 1) The "flipper" node |
| 6 | |
| 7 | This node represents the multi-function "Flipper" chip, which packages |
| 8 | many of the devices found in the Nintendo GameCube. |
| 9 | |
| 10 | Required properties: |
| 11 | |
| 12 | - compatible : Should be "nintendo,flipper" |
| 13 | |
| 14 | 1.a) The Video Interface (VI) node |
| 15 | |
| 16 | Represents the interface between the graphics processor and a external |
| 17 | video encoder. |
| 18 | |
| 19 | Required properties: |
| 20 | |
| 21 | - compatible : should be "nintendo,flipper-vi" |
| 22 | - reg : should contain the VI registers location and length |
| 23 | - interrupts : should contain the VI interrupt |
| 24 | |
| 25 | 1.b) The Processor Interface (PI) node |
| 26 | |
| 27 | Represents the data and control interface between the main processor |
| 28 | and graphics and audio processor. |
| 29 | |
| 30 | Required properties: |
| 31 | |
| 32 | - compatible : should be "nintendo,flipper-pi" |
| 33 | - reg : should contain the PI registers location and length |
| 34 | |
| 35 | 1.b.i) The "Flipper" interrupt controller node |
| 36 | |
| 37 | Represents the interrupt controller within the "Flipper" chip. |
| 38 | The node for the "Flipper" interrupt controller must be placed under |
| 39 | the PI node. |
| 40 | |
| 41 | Required properties: |
| 42 | |
| 43 | - compatible : should be "nintendo,flipper-pic" |
| 44 | |
| 45 | 1.c) The Digital Signal Processor (DSP) node |
| 46 | |
| 47 | Represents the digital signal processor interface, designed to offload |
| 48 | audio related tasks. |
| 49 | |
| 50 | Required properties: |
| 51 | |
| 52 | - compatible : should be "nintendo,flipper-dsp" |
| 53 | - reg : should contain the DSP registers location and length |
| 54 | - interrupts : should contain the DSP interrupt |
| 55 | |
| 56 | 1.c.i) The Auxiliary RAM (ARAM) node |
| 57 | |
| 58 | Represents the non cpu-addressable ram designed mainly to store audio |
| 59 | related information. |
| 60 | The ARAM node must be placed under the DSP node. |
| 61 | |
| 62 | Required properties: |
| 63 | |
| 64 | - compatible : should be "nintendo,flipper-aram" |
| 65 | - reg : should contain the ARAM start (zero-based) and length |
| 66 | |
| 67 | 1.d) The Disk Interface (DI) node |
| 68 | |
| 69 | Represents the interface used to communicate with mass storage devices. |
| 70 | |
| 71 | Required properties: |
| 72 | |
| 73 | - compatible : should be "nintendo,flipper-di" |
| 74 | - reg : should contain the DI registers location and length |
| 75 | - interrupts : should contain the DI interrupt |
| 76 | |
| 77 | 1.e) The Audio Interface (AI) node |
| 78 | |
| 79 | Represents the interface to the external 16-bit stereo digital-to-analog |
| 80 | converter. |
| 81 | |
| 82 | Required properties: |
| 83 | |
| 84 | - compatible : should be "nintendo,flipper-ai" |
| 85 | - reg : should contain the AI registers location and length |
| 86 | - interrupts : should contain the AI interrupt |
| 87 | |
| 88 | 1.f) The Serial Interface (SI) node |
| 89 | |
| 90 | Represents the interface to the four single bit serial interfaces. |
| 91 | The SI is a proprietary serial interface used normally to control gamepads. |
| 92 | It's NOT a RS232-type interface. |
| 93 | |
| 94 | Required properties: |
| 95 | |
| 96 | - compatible : should be "nintendo,flipper-si" |
| 97 | - reg : should contain the SI registers location and length |
| 98 | - interrupts : should contain the SI interrupt |
| 99 | |
| 100 | 1.g) The External Interface (EXI) node |
| 101 | |
| 102 | Represents the multi-channel SPI-like interface. |
| 103 | |
| 104 | Required properties: |
| 105 | |
| 106 | - compatible : should be "nintendo,flipper-exi" |
| 107 | - reg : should contain the EXI registers location and length |
| 108 | - interrupts : should contain the EXI interrupt |
| 109 | |