forked from Minki/linux
e90d71d0f5
Add platform support for the Nintendo GameCube video game console. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
119 lines
2.3 KiB
C
119 lines
2.3 KiB
C
/*
|
|
* 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);
|
|
|