1 2 Nintendo Wii device tree 3 ======================== 4 5 0) The root node 6 7 This node represents the Nintendo Wii video game console. 8 9 Required properties: 10 11 - model : Should be "nintendo,wii" 12 - compatible : Should be "nintendo,wii" 13 14 1) The "hollywood" node 15 16 This node represents the multi-function "Hollywood" chip, which packages 17 many of the devices found in the Nintendo Wii. 18 19 Required properties: 20 21 - compatible : Should be "nintendo,hollywood" 22 23 1.a) The Video Interface (VI) node 24 25 Represents the interface between the graphics processor and a external 26 video encoder. 27 28 Required properties: 29 30 - compatible : should be "nintendo,hollywood-vi","nintendo,flipper-vi" 31 - reg : should contain the VI registers location and length 32 - interrupts : should contain the VI interrupt 33 34 1.b) The Processor Interface (PI) node 35 36 Represents the data and control interface between the main processor 37 and graphics and audio processor. 38 39 Required properties: 40 41 - compatible : should be "nintendo,hollywood-pi","nintendo,flipper-pi" 42 - reg : should contain the PI registers location and length 43 44 1.b.i) The "Flipper" interrupt controller node 45 46 Represents the "Flipper" interrupt controller within the "Hollywood" chip. 47 The node for the "Flipper" interrupt controller must be placed under 48 the PI node. 49 50 Required properties: 51 52 - #interrupt-cells : <1> 53 - compatible : should be "nintendo,flipper-pic" 54 - interrupt-controller 55 56 1.c) The Digital Signal Processor (DSP) node 57 58 Represents the digital signal processor interface, designed to offload 59 audio related tasks. 60 61 Required properties: 62 63 - compatible : should be "nintendo,hollywood-dsp","nintendo,flipper-dsp" 64 - reg : should contain the DSP registers location and length 65 - interrupts : should contain the DSP interrupt 66 67 1.d) The Serial Interface (SI) node 68 69 Represents the interface to the four single bit serial interfaces. 70 The SI is a proprietary serial interface used normally to control gamepads. 71 It's NOT a RS232-type interface. 72 73 Required properties: 74 75 - compatible : should be "nintendo,hollywood-si","nintendo,flipper-si" 76 - reg : should contain the SI registers location and length 77 - interrupts : should contain the SI interrupt 78 79 1.e) The Audio Interface (AI) node 80 81 Represents the interface to the external 16-bit stereo digital-to-analog 82 converter. 83 84 Required properties: 85 86 - compatible : should be "nintendo,hollywood-ai","nintendo,flipper-ai" 87 - reg : should contain the AI registers location and length 88 - interrupts : should contain the AI interrupt 89 90 1.f) The External Interface (EXI) node 91 92 Represents the multi-channel SPI-like interface. 93 94 Required properties: 95 96 - compatible : should be "nintendo,hollywood-exi","nintendo,flipper-exi" 97 - reg : should contain the EXI registers location and length 98 - interrupts : should contain the EXI interrupt 99 100 1.h) The Enhanced Host Controller Interface (EHCI) node 101 102 Represents the USB 2.0 Enhanced Host Controller Interface. 103 104 Required properties: 105 106 - compatible : should be "nintendo,hollywood-usb-ehci","usb-ehci" 107 - reg : should contain the EHCI registers location and length 108 - interrupts : should contain the EHCI interrupt 109 110 1.i) The Secure Digital Host Controller Interface (SDHCI) nodes 111 112 Represent the Secure Digital Host Controller Interfaces. 113 114 Required properties: 115 116 - compatible : should be "nintendo,hollywood-sdhci","sdhci" 117 - reg : should contain the SDHCI registers location and length 118 - interrupts : should contain the SDHCI interrupt 119 120 1.j) The Inter-Processor Communication (IPC) node 121 122 Represent the Inter-Processor Communication interface. This interface 123 enables communications between the Broadway and the Starlet processors. 124 125 - compatible : should be "nintendo,hollywood-ipc" 126 - reg : should contain the IPC registers location and length 127 - interrupts : should contain the IPC interrupt 128 129 1.k) The "Hollywood" interrupt controller node 130 131 Represents the "Hollywood" interrupt controller within the 132 "Hollywood" chip. 133 134 Required properties: 135 136 - #interrupt-cells : <1> 137 - compatible : should be "nintendo,hollywood-pic" 138 - reg : should contain the controller registers location and length 139 - interrupt-controller 140 - interrupts : should contain the cascade interrupt of the "flipper" pic 141 142 1.l) The General Purpose I/O (GPIO) controller node 143 144 see Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt 145 146 1.m) The control node 147 148 Represents the control interface used to setup several miscellaneous 149 settings of the "Hollywood" chip like boot memory mappings, resets, 150 disk interface mode, etc. 151 152 Required properties: 153 154 - compatible : should be "nintendo,hollywood-control" 155 - reg : should contain the control registers location and length 156 157 1.n) The Disk Interface (DI) node 158 159 Represents the interface used to communicate with mass storage devices. 160 161 Required properties: 162 163 - compatible : should be "nintendo,hollywood-di" 164 - reg : should contain the DI registers location and length 165 - interrupts : should contain the DI interrupt 166
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