91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/* $NetBSD: loongson_bus_io.c,v 1.2 2012/03/02 13:20:57 nonaka Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Platform-specific PCI bus I/O support for loongson-based systems
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: loongson_bus_io.c,v 1.2 2012/03/02 13:20:57 nonaka Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/syslog.h>
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#include <sys/device.h>
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#include <uvm/uvm_extern.h>
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#include <machine/locore.h>
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#include <mips/bonito/bonitoreg.h>
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#include <sys/bus.h>
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#include <evbmips/loongson/loongson_bus_defs.h>
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#include <evbmips/loongson/autoconf.h>
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#define CHIP bonito
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#define CHIP_IO /* defined */
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#define CHIP_EX_MALLOC_SAFE(v) (ex_mallocsafe)
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#define CHIP_EXTENT(v) (loongson_io_ex)
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/* IO region 1 */
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#define CHIP_W1_BUS_START(v) 0x00000000UL
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#define CHIP_W1_BUS_END(v) 0x000fffffUL
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#define CHIP_W1_SYS_START(v) ((u_long)BONITO_PCIIO_BASE)
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#define CHIP_W1_SYS_END(v) ((u_long)BONITO_PCIIO_BASE + 0x000fffffUL)
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#include <mips/mips/bus_space_alignstride_chipdep.c>
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int
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bonito_bus_io_legacy_map(void *v, bus_addr_t addr, bus_size_t size, int flags,
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bus_space_handle_t *hp, int acct)
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{
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const struct legacy_io_range *r;
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bus_addr_t rend;
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if (addr < BONITO_PCIIO_LEGACY) {
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r = sys_platform->legacy_io_ranges;
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if (r == NULL)
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return (ENXIO);
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rend = addr + size - 1;
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for (; r->start != 0; r++)
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if (addr >= r->start && rend <= r->end)
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break;
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if (r->end == 0)
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return (ENXIO);
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}
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return __BS(map)(v, addr, size, flags, hp, acct);
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}
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