You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.0 KiB
84 lines
2.0 KiB
20 years ago
|
/*
|
||
|
|
* 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].handler = &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;
|
||
|
|
}
|