a724605cb7
This patch makes the dreamcast use the recently added declared coherent memory functions to point out the memory window suitable for dma. Apart from cleaning up, this gives the dreamcast a proper memory allocator for pci dma memory. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
64 lines
1.6 KiB
C
64 lines
1.6 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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static void __init dreamcast_setup(char **cmdline_p)
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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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}
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static struct sh_machine_vector mv_dreamcast __initmv = {
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.mv_name = "Sega Dreamcast",
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.mv_setup = dreamcast_setup,
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.mv_irq_demux = systemasic_irq_demux,
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};
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