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/*
* arch/sh/boards/dreamcast/setup.c
*
* Hardware support for the Sega Dreamcast.
*
* Copyright (c) 2001, 2002 M. R. Brown <mrbrown@linuxdc.org>
* Copyright (c) 2002, 2003, 2004 Paul Mundt <lethal@linux-sh.org>
*
* This file is part of the LinuxDC project (www.linuxdc.org)
*
* Released under the terms of the GNU GPL v2.0.
*
* This file originally bore the message (with enclosed-$):
* Id: setup_dc.c,v 1.5 2001/05/24 05:09:16 mrbrown Exp
* SEGA Dreamcast support
*/
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/device.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/machvec.h>
#include <asm/machvec_init.h>
#include <asm/mach/sysasic.h>
extern struct hw_interrupt_type systemasic_int;
/* XXX: Move this into it's proper header. */
extern void (*board_time_init)(void);
extern void aica_time_init(void);
extern int gapspci_init(void);
extern int systemasic_irq_demux(int);
void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, int);
int dreamcast_consistent_free(struct device *, size_t, void *, dma_addr_t);
const char *get_system_type(void)
{
return "Sega Dreamcast";
}
struct sh_machine_vector mv_dreamcast __initmv = {
.mv_nr_irqs = NR_IRQS,
.mv_irq_demux = systemasic_irq_demux,
#ifdef CONFIG_PCI
.mv_consistent_alloc = dreamcast_consistent_alloc,
.mv_consistent_free = dreamcast_consistent_free,
#endif
};
ALIAS_MV(dreamcast)
int __init platform_setup(void)
{
int i;
/* Mask all hardware events */
/* XXX */
/* Acknowledge any previous events */
/* XXX */
__set_io_port_base(0xa0000000);
/* Assign all virtual IRQs to the System ASIC int. handler */
for (i = HW_EVENT_IRQ_BASE; i < HW_EVENT_IRQ_MAX; i++)
irq_desc[i].chip = &systemasic_int;
board_time_init = aica_time_init;
#ifdef CONFIG_PCI
if (gapspci_init() < 0)
printk(KERN_WARNING "GAPSPCI was not detected.\n");
#endif
return 0;
}
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