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