261 lines
7.0 KiB
C
261 lines
7.0 KiB
C
/* $NetBSD: mainbus.c,v 1.26 2012/01/27 18:52:47 para 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.26 2012/01/27 18:52:47 para Exp $");
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#include "opt_algor_p4032.h"
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#include "opt_algor_p5064.h"
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#include "opt_algor_p6032.h"
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#include "opt_pci.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/extent.h>
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#include <sys/malloc.h>
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#include <sys/reboot.h>
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#include <sys/systm.h>
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#include <algor/autoconf.h>
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#include <mips/cache.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pciconf.h>
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#if defined(PCI_NETBSD_CONFIGURE) && defined(PCI_NETBSD_ENABLE_IDE)
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#if defined(ALGOR_P5064) || defined(ALGOR_P6032)
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#include <dev/pci/pciide_piix_reg.h>
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#endif /* ALGOR_P5064 || ALGOR_P6032 */
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#endif /* PCI_NETBSD_CONFIGURE && PCI_NETBSD_ENABLE_IDE */
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#include "locators.h"
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#include "pci.h"
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int mainbus_match(device_t, cfdata_t, void *);
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void mainbus_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(mainbus, 0,
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mainbus_match, mainbus_attach, NULL, NULL);
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int mainbus_print(void *, const char *);
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int mainbus_submatch(device_t, cfdata_t,
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const int *, void *);
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/* There can be only one. */
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int mainbus_found;
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struct mainbusdev {
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const char *md_name;
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bus_addr_t md_addr;
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int md_irq;
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};
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#if defined(ALGOR_P4032)
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#include <algor/algor/algor_p4032reg.h>
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#include <algor/algor/algor_p4032var.h>
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struct mainbusdev mainbusdevs[] = {
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{ "cpu", -1, -1 },
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{ "mcclock", P4032_RTC, P4032_IRQ_RTC },
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{ "com", P4032_COM1, P4032_IRQ_COM1 },
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{ "com", P4032_COM2, P4032_IRQ_COM2 },
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{ "lpt", P4032_LPT, P4032_IRQ_LPT },
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{ "pckbc", P4032_PCKBC, P4032_IRQ_PCKBC },
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{ "fdc", P4032_FDC, P4032_IRQ_FLOPPY },
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{ "vtpbc", P4032_V962PBC, -1 },
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{ NULL, 0, 0 },
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};
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#endif /* ALGOR_P4032 */
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#if defined(ALGOR_P5064)
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#include <algor/algor/algor_p5064reg.h>
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#include <algor/algor/algor_p5064var.h>
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struct mainbusdev mainbusdevs[] = {
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{ "cpu", -1, -1 },
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{ "vtpbc", P5064_V360EPC, -1 },
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{ NULL, 0, 0 },
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};
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#endif /* ALGOR_P5064 */
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#if defined(ALGOR_P6032)
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#include <algor/algor/algor_p6032reg.h>
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#include <algor/algor/algor_p6032var.h>
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struct mainbusdev mainbusdevs[] = {
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{ "cpu", -1, -1 },
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{ "bonito", BONITO_REG_BASE, -1 },
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{ NULL, 0, 0 },
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};
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#endif /* ALGOR_P6032 */
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int
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mainbus_match(device_t parent, cfdata_t cf, void *aux)
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{
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if (mainbus_found)
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return (0);
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return (1);
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}
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void
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mainbus_attach(device_t parent, device_t self, void *aux)
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{
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struct mainbus_attach_args ma;
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struct mainbusdev *md;
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bus_space_tag_t st;
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#if defined(PCI_NETBSD_CONFIGURE)
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struct extent *ioext, *memext;
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pci_chipset_tag_t pc;
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#if defined(PCI_NETBSD_ENABLE_IDE)
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pcitag_t idetag;
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pcireg_t idetim;
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#endif
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#endif
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mainbus_found = 1;
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printf("\n");
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#if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE)
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#if defined(ALGOR_P4032)
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/*
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* Reserve the bottom 64K of the I/O space for ISA devices.
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*/
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ioext = extent_create("pciio", 0x00010000, 0x000effff,
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NULL, 0, EX_NOWAIT);
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memext = extent_create("pcimem", 0x01000000, 0x07ffffff,
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NULL, 0, EX_NOWAIT);
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pc = &p4032_configuration.ac_pc;
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#elif defined(ALGOR_P5064)
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/*
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* Reserve the bottom 512K of the I/O space for ISA devices.
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* According to the PMON sources, this is a work-around for
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* a bug in the ISA bridge.
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*/
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ioext = extent_create("pciio", 0x00080000, 0x00ffffff,
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NULL, 0, EX_NOWAIT);
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memext = extent_create("pcimem", 0x01000000, 0x07ffffff,
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NULL, 0, EX_NOWAIT);
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pc = &p5064_configuration.ac_pc;
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#if defined(PCI_NETBSD_ENABLE_IDE)
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idetag = pci_make_tag(pc, 0, 2, 1);
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#endif
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#elif defined(ALGOR_P6032)
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/*
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* Reserve the bottom 64K of the I/O space for ISA devices.
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*/
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ioext = extent_create("pciio", 0x00010000, 0x000effff,
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NULL, 0, EX_NOWAIT);
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memext = extent_create("pcimem", 0x01000000, 0x0affffff,
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NULL, 0, EX_NOWAIT);
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pc = &p6032_configuration.ac_pc;
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#if defined(PCI_NETBSD_ENABLE_IDE)
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idetag = pci_make_tag(pc, 0, 17, 1);
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#endif
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#endif /* ALGOR_P4032 || ALGOR_P5064 || ALGOR_P6032 */
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pci_configure_bus(pc, ioext, memext, NULL, 0, mips_cache_info.mci_dcache_align);
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extent_destroy(ioext);
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extent_destroy(memext);
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#if defined(PCI_NETBSD_ENABLE_IDE)
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/*
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* Perhaps PMON has not enabled the IDE controller. Easy to
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* fix -- just set the ENABLE bits for each channel in the
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* IDETIM register. Just clear all the bits for the channel
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* except for the ENABLE bits -- the `pciide' driver will
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* properly configure it later.
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*/
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idetim = 0;
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if (PCI_NETBSD_ENABLE_IDE & 0x01)
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idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0);
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if (PCI_NETBSD_ENABLE_IDE & 0x02)
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idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1);
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pci_conf_write(pc, idetag, PIIX_IDETIM, idetim);
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#endif
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#endif /* NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) */
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#if defined(ALGOR_P4032)
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st = &p4032_configuration.ac_lociot;
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#elif defined(ALGOR_P5064)
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st = NULL;
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#elif defined(ALGOR_P6032)
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st = NULL;
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#endif
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for (md = mainbusdevs; md->md_name != NULL; md++) {
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ma.ma_name = md->md_name;
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ma.ma_st = st;
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ma.ma_addr = md->md_addr;
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ma.ma_irq = md->md_irq;
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(void) config_found_sm_loc(self, "mainbus", NULL, &ma,
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mainbus_print, mainbus_submatch);
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}
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}
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int
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mainbus_print(void *aux, const char *pnp)
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{
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struct mainbus_attach_args *ma = aux;
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if (pnp)
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aprint_normal("%s at %s", ma->ma_name, pnp);
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if (ma->ma_addr != (bus_addr_t) -1)
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aprint_normal(" addr %#" PRIxBUSADDR, ma->ma_addr);
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return (UNCONF);
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}
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int
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mainbus_submatch(device_t parent, cfdata_t cf,
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const int *ldesc, void *aux)
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{
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struct mainbus_attach_args *ma = aux;
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if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT &&
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cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr)
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return (0);
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return (config_match(parent, cf, aux));
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}
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