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/*
* arch/powerpc/platforms/embedded6xx/gamecube.c
*
* Nintendo GameCube board-specific support
* Copyright (C) 2004-2009 The GameCube Linux Team
* Copyright (C) 2007,2008,2009 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 <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/kexec.h>
#include <linux/seq_file.h>
#include <linux/of_platform.h>
#include <asm/io.h>
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/time.h>
#include <asm/udbg.h>
#include "flipper-pic.h"
#include "usbgecko_udbg.h"
static void gamecube_spin(void)
{
/* spin until power button pressed */
for (;;)
cpu_relax();
}
static void gamecube_restart(char *cmd)
{
local_irq_disable();
flipper_platform_reset();
gamecube_spin();
}
static void gamecube_power_off(void)
{
local_irq_disable();
gamecube_spin();
}
static void gamecube_halt(void)
{
gamecube_restart(NULL);
}
static void __init gamecube_init_early(void)
{
ug_udbg_init();
}
static int __init gamecube_probe(void)
{
unsigned long dt_root;
dt_root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(dt_root, "nintendo,gamecube"))
return 0;
return 1;
}
static void gamecube_shutdown(void)
{
flipper_quiesce();
}
#ifdef CONFIG_KEXEC
static int gamecube_kexec_prepare(struct kimage *image)
{
return 0;
}
#endif /* CONFIG_KEXEC */
define_machine(gamecube) {
.name = "gamecube",
.probe = gamecube_probe,
.init_early = gamecube_init_early,
.restart = gamecube_restart,
.power_off = gamecube_power_off,
.halt = gamecube_halt,
.init_IRQ = flipper_pic_probe,
.get_irq = flipper_pic_get_irq,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
.machine_shutdown = gamecube_shutdown,
#ifdef CONFIG_KEXEC
.machine_kexec_prepare = gamecube_kexec_prepare,
#endif
};
static struct of_device_id gamecube_of_bus[] = {
{ .compatible = "nintendo,flipper", },
{ },
};
static int __init gamecube_device_probe(void)
{
if (!machine_is(gamecube))
return 0;
of_platform_bus_probe(NULL, gamecube_of_bus, NULL);
return 0;
}
device_initcall(gamecube_device_probe);
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