wii.txt

  1
  2Nintendo Wii device tree
  3========================
  4
  50) 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
 141) 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
 231.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
 341.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
 441.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
 561.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
 671.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
 791.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
 901.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
1001.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
1101.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
1201.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
1291.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
1421.m) The control node
143
144  Represents the control interface used to setup several miscellaneous
145  settings of the "Hollywood" chip like boot memory mappings, resets,
146  disk interface mode, etc.
147
148  Required properties:
149
150   - compatible : should be "nintendo,hollywood-control"
151   - reg : should contain the control registers location and length
152
1531.n) The Disk Interface (DI) node
154
155  Represents the interface used to communicate with mass storage devices.
156
157  Required properties:
158
159   - compatible : should be "nintendo,hollywood-di"
160   - reg : should contain the DI registers location and length
161   - interrupts : should contain the DI interrupt
162