diff options
| author |   Albert Herranz <albert_herranz@yahoo.es> | 2009-12-12 06:31:45 +0000 |
|---|---|---|
| committer |   Grant Likely <grant.likely@secretlab.ca> | 2009-12-12 22:24:29 -0700 |
| commit | 6cdd24179d31b5e9beaea01f8ac5a1ba77415e33 (patch) | |
| tree | f3128d23707c00b165b90b3b9e8bec9a93218b77 /arch/powerpc/boot/wii.c | |
| parent | powerpc: wii: device tree (diff) | |
| download | linux-dev-6cdd24179d31b5e9beaea01f8ac5a1ba77415e33.tar.xz linux-dev-6cdd24179d31b5e9beaea01f8ac5a1ba77415e33.zip | |
powerpc: wii: bootwrapper bits
Add support for the Nintendo Wii video game console to the powerpc
bootwrapper.
dtbImage.wii is a wrapped image that contains a flat device tree,
an entry point compatible with the Homebrew Channel and BootMii,
and an optional initrd.
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>
Diffstat (limited to 'arch/powerpc/boot/wii.c')
| -rw-r--r-- | arch/powerpc/boot/wii.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/powerpc/boot/wii.c b/arch/powerpc/boot/wii.c new file mode 100644 index 000000000000..d0e2625a9539 --- /dev/null +++ b/arch/powerpc/boot/wii.c @@ -0,0 +1,46 @@ +/* + * arch/powerpc/boot/wii.c + * + * Nintendo Wii bootwrapper support + * 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. + * + */ + +#include <stddef.h> +#include "stdio.h" +#include "types.h" +#include "io.h" +#include "ops.h" + +#include "ugecon.h" + +BSS_STACK(8192); + +#define HW_REG(x) ((void *)(x)) + +#define EXI_CTRL HW_REG(0x0d800070) +#define EXI_CTRL_ENABLE (1<<0) + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5) +{ + u32 heapsize = 24*1024*1024 - (u32)_end; + + simple_alloc_init(_end, heapsize, 32, 64); + fdt_init(_dtb_start); + + /* + * 'mini' boots the Broadway processor with EXI disabled. + * We need it enabled before probing for the USB Gecko. + */ + out_be32(EXI_CTRL, in_be32(EXI_CTRL) | EXI_CTRL_ENABLE); + + if (ug_probe()) + console_ops.write = ug_console_write; +} + |