powerpc: wii: device tree
Albert Herranz [Sat, 12 Dec 2009 06:31:44 +0000 (06:31 +0000)]
Add a device tree source file for the Nintendo Wii video game console.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

Documentation/powerpc/dts-bindings/nintendo/wii.txt [new file with mode: 0644]
arch/powerpc/boot/dts/wii.dts [new file with mode: 0644]

diff --git a/Documentation/powerpc/dts-bindings/nintendo/wii.txt b/Documentation/powerpc/dts-bindings/nintendo/wii.txt
new file mode 100644 (file)
index 0000000..a7e155a
--- /dev/null
@@ -0,0 +1,184 @@
+
+Nintendo Wii device tree
+========================
+
+0) The root node
+
+  This node represents the Nintendo Wii video game console.
+
+  Required properties:
+
+   - model : Should be "nintendo,wii"
+   - compatible : Should be "nintendo,wii"
+
+1) The "hollywood" node
+
+  This node represents the multi-function "Hollywood" chip, which packages
+  many of the devices found in the Nintendo Wii.
+
+  Required properties:
+
+   - compatible : Should be "nintendo,hollywood"
+
+1.a) The Video Interface (VI) node
+
+  Represents the interface between the graphics processor and a external
+  video encoder.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-vi","nintendo,flipper-vi"
+   - reg : should contain the VI registers location and length
+   - interrupts : should contain the VI interrupt
+
+1.b) The Processor Interface (PI) node
+
+  Represents the data and control interface between the main processor
+  and graphics and audio processor.
+
+  Required properties:
+
+  - compatible : should be "nintendo,hollywood-pi","nintendo,flipper-pi"
+  - reg : should contain the PI registers location and length
+
+1.b.i) The "Flipper" interrupt controller node
+
+  Represents the "Flipper" interrupt controller within the "Hollywood" chip.
+  The node for the "Flipper" interrupt controller must be placed under
+  the PI node.
+
+  Required properties:
+
+  - #interrupt-cells : <1>
+  - compatible : should be "nintendo,flipper-pic"
+  - interrupt-controller
+
+1.c) The Digital Signal Procesor (DSP) node
+
+  Represents the digital signal processor interface, designed to offload
+  audio related tasks.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-dsp","nintendo,flipper-dsp"
+   - reg : should contain the DSP registers location and length
+   - interrupts : should contain the DSP interrupt
+
+1.d) The Serial Interface (SI) node
+
+  Represents the interface to the four single bit serial interfaces.
+  The SI is a proprietary serial interface used normally to control gamepads.
+  It's NOT a RS232-type interface.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-si","nintendo,flipper-si"
+   - reg : should contain the SI registers location and length
+   - interrupts : should contain the SI interrupt
+
+1.e) The Audio Interface (AI) node
+
+  Represents the interface to the external 16-bit stereo digital-to-analog
+  converter.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-ai","nintendo,flipper-ai"
+   - reg : should contain the AI registers location and length
+   - interrupts : should contain the AI interrupt
+
+1.f) The External Interface (EXI) node
+
+  Represents the multi-channel SPI-like interface.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-exi","nintendo,flipper-exi"
+   - reg : should contain the EXI registers location and length
+   - interrupts : should contain the EXI interrupt
+
+1.g) The Open Host Controller Interface (OHCI) nodes
+
+  Represent the USB 1.x Open Host Controller Interfaces.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-usb-ohci","usb-ohci"
+   - reg : should contain the OHCI registers location and length
+   - interrupts : should contain the OHCI interrupt
+
+1.h) The Enhanced Host Controller Interface (EHCI) node
+
+  Represents the USB 2.0 Enhanced Host Controller Interface.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-usb-ehci","usb-ehci"
+   - reg : should contain the EHCI registers location and length
+   - interrupts : should contain the EHCI interrupt
+
+1.i) The Secure Digital Host Controller Interface (SDHCI) nodes
+
+  Represent the Secure Digital Host Controller Interfaces.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-sdhci","sdhci"
+   - reg : should contain the SDHCI registers location and length
+   - interrupts : should contain the SDHCI interrupt
+
+1.j) The Inter-Processsor Communication (IPC) node
+
+  Represent the Inter-Processor Communication interface. This interface
+  enables communications between the Broadway and the Starlet processors.
+
+   - compatible : should be "nintendo,hollywood-ipc"
+   - reg : should contain the IPC registers location and length
+   - interrupts : should contain the IPC interrupt
+
+1.k) The "Hollywood" interrupt controller node
+
+  Represents the "Hollywood" interrupt controller within the
+  "Hollywood" chip.
+
+  Required properties:
+
+  - #interrupt-cells : <1>
+  - compatible : should be "nintendo,hollywood-pic"
+  - reg : should contain the controller registers location and length
+  - interrupt-controller
+  - interrupts : should contain the cascade interrupt of the "flipper" pic
+  - interrupt-parent: should contain the phandle of the "flipper" pic
+
+1.l) The General Purpose I/O (GPIO) controller node
+
+  Represents the dual access 32 GPIO controller interface.
+
+  Required properties:
+
+  - #gpio-cells : <2>
+  - compatible : should be "nintendo,hollywood-gpio"
+  - reg : should contain the IPC registers location and length
+  - gpio-controller
+
+1.m) The control node
+
+  Represents the control interface used to setup several miscellaneous
+  settings of the "Hollywood" chip like boot memory mappings, resets,
+  disk interface mode, etc.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-control"
+   - reg : should contain the control registers location and length
+
+1.n) The Disk Interface (DI) node
+
+  Represents the interface used to communicate with mass storage devices.
+
+  Required properties:
+
+   - compatible : should be "nintendo,hollywood-di"
+   - reg : should contain the DI registers location and length
+   - interrupts : should contain the DI interrupt
+
diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts
new file mode 100644 (file)
index 0000000..77528c9
--- /dev/null
@@ -0,0 +1,218 @@
+/*
+ * arch/powerpc/boot/dts/wii.dts
+ *
+ * Nintendo Wii platform device tree source
+ * Copyright (C) 2008-2009 The GameCube Linux Team
+ * Copyright (C) 2008,2009 Albert Herranz
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+/dts-v1/;
+
+/*
+ * This is commented-out for now.
+ * Until a later patch is merged, the kernel can use only the first
+ * contiguous RAM range and will BUG() if the memreserve is outside
+ * that range.
+ */
+/*/memreserve/ 0x10000000 0x0004000;*/ /* DSP RAM */
+
+/ {
+       model = "nintendo,wii";
+       compatible = "nintendo,wii";
+       #address-cells = <1>;
+       #size-cells = <1>;
+
+       chosen {
+               bootargs = "root=/dev/mmcblk0p2 rootwait udbg-immortal";
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0x00000000 0x01800000    /* MEM1 24MB 1T-SRAM */
+                      0x10000000 0x04000000>;  /* MEM2 64MB GDDR3 */
+       };
+
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               PowerPC,broadway@0 {
+                       device_type = "cpu";
+                       reg = <0>;
+                       clock-frequency = <729000000>; /* 729MHz */
+                       bus-frequency = <243000000>; /* 243MHz core-to-bus 3x */
+                       timebase-frequency = <60750000>; /* 243MHz / 4 */
+                       i-cache-line-size = <32>;
+                       d-cache-line-size = <32>;
+                       i-cache-size = <32768>;
+                       d-cache-size = <32768>;
+               };
+       };
+
+       /* devices contained in the hollywood chipset */
+       hollywood {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "nintendo,hollywood";
+                ranges = <0x0c000000 0x0c000000 0x01000000
+                         0x0d000000 0x0d000000 0x00800000
+                         0x0d800000 0x0d800000 0x00800000>;
+               interrupt-parent = <&PIC0>;
+
+               video@0c002000 {
+                       compatible = "nintendo,hollywood-vi",
+                                       "nintendo,flipper-vi";
+                       reg = <0x0c002000 0x100>;
+                       interrupts = <8>;
+               };
+
+               processor-interface@0c003000 {
+                       compatible = "nintendo,hollywood-pi",
+                                       "nintendo,flipper-pi";
+                       reg = <0x0c003000 0x100>;
+
+                       PIC0: pic0 {
+                               #interrupt-cells = <1>;
+                               compatible = "nintendo,flipper-pic";
+                               interrupt-controller;
+                       };
+               };
+
+               dsp@0c005000 {
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       compatible = "nintendo,hollywood-dsp",
+                                       "nintendo,flipper-dsp";
+                       reg = <0x0c005000 0x200>;
+                       interrupts = <6>;
+               };
+
+               gamepad-controller@0d006400 {
+                       compatible = "nintendo,hollywood-si",
+                                       "nintendo,flipper-si";
+                       reg = <0x0d006400 0x100>;
+                       interrupts = <3>;
+               };
+
+               audio@0c006c00 {
+                       compatible = "nintendo,hollywood-ai",
+                                       "nintendo,flipper-ai";
+                       reg = <0x0d006c00 0x20>;
+                       interrupts = <6>;
+               };
+
+               /* External Interface bus */
+               exi@0d006800 {
+                       compatible = "nintendo,hollywood-exi",
+                                       "nintendo,flipper-exi";
+                       reg = <0x0d006800 0x40>;
+                       virtual-reg = <0x0d006800>;
+                       interrupts = <4>;
+               };
+
+               usb@0d040000 {
+                       compatible = "nintendo,hollywood-usb-ehci",
+                                       "usb-ehci";
+                       reg = <0x0d040000 0x100>;
+                       interrupts = <4>;
+                       interrupt-parent = <&PIC1>;
+               };
+
+               usb@0d050000 {
+                       compatible = "nintendo,hollywood-usb-ohci",
+                                       "usb-ohci";
+                       reg = <0x0d050000 0x100>;
+                       interrupts = <5>;
+                       interrupt-parent = <&PIC1>;
+               };
+
+               usb@0d060000 {
+                       compatible = "nintendo,hollywood-usb-ohci",
+                                       "usb-ohci";
+                       reg = <0x0d060000 0x100>;
+                       interrupts = <6>;
+                       interrupt-parent = <&PIC1>;
+               };
+
+               sd@0d070000 {
+                       compatible = "nintendo,hollywood-sdhci",
+                                       "sdhci";
+                       reg = <0x0d070000 0x200>;
+                       interrupts = <7>;
+                       interrupt-parent = <&PIC1>;
+               };
+
+               sdio@0d080000 {
+                       compatible = "nintendo,hollywood-sdhci",
+                                       "sdhci";
+                       reg = <0x0d080000 0x200>;
+                       interrupts = <8>;
+                       interrupt-parent = <&PIC1>;
+               };
+
+               ipc@0d000000 {
+                       compatible = "nintendo,hollywood-ipc";
+                       reg = <0x0d000000 0x10>;
+                       interrupts = <30>;
+                       interrupt-parent = <&PIC1>;
+               };
+
+               PIC1: pic1@0d800030 {
+                       #interrupt-cells = <1>;
+                       compatible = "nintendo,hollywood-pic";
+                       reg = <0x0d800030 0x10>;
+                       interrupt-controller;
+                       interrupts = <14>;
+               };
+
+               GPIO: gpio@0d8000c0 {
+                       #gpio-cells = <2>;
+                       compatible = "nintendo,hollywood-gpio";
+                       reg = <0x0d8000c0 0x40>;
+                       gpio-controller;
+
+                       /*
+                        * This is commented out while a standard binding
+                        * for i2c over gpio is defined.
+                        */
+                       /*
+                       i2c-video {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               compatible = "i2c-gpio";
+
+                               gpios = <&GPIO 15 0
+                                        &GPIO 14 0>;
+                               clock-frequency = <250000>;
+                               no-clock-stretching;
+                               scl-is-open-drain;
+                               sda-is-open-drain;
+                               sda-enforce-dir;
+
+                               AVE: audio-video-encoder@70 {
+                                       compatible = "nintendo,wii-audio-video-encoder";
+                                       reg = <0x70>;
+                               };
+                       };
+                       */
+               };
+
+               control@0d800100 {
+                       compatible = "nintendo,hollywood-control";
+                       reg = <0x0d800100 0x300>;
+               };
+
+               disk@0d806000 {
+                       compatible = "nintendo,hollywood-di";
+                       reg = <0x0d806000 0x40>;
+                       interrupts = <2>;
+               };
+       };
+};
+