119 lines
3.9 KiB
C
119 lines
3.9 KiB
C
/* $NetBSD: pci_machdep.c,v 1.5 2008/06/14 12:05:39 mjf Exp $ */
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/*
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1994 Charles M. Hannum. All rights reserved.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles M. Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Machine-specific functions for PCI autoconfiguration.
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*
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* On PCs, there are two methods of generating PCI configuration cycles.
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* We try to detect the appropriate mechanism for this machine and set
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* up a few function pointers to access the correct method directly.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/extent.h>
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#include <sys/device.h>
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#include <uvm/uvm_extern.h>
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#define _POWERPC_BUS_DMA_PRIVATE
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/isa/isavar.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/pciconf.h>
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void
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ibmnws_pci_get_chipset_tag_indirect(pci_chipset_tag_t pc)
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{
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pc->pc_conf_v = (void *)pc;
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pc->pc_attach_hook = genppc_pci_indirect_attach_hook;
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pc->pc_bus_maxdevs = ibmnws_pci_bus_maxdevs;
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pc->pc_make_tag = genppc_pci_indirect_make_tag;
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pc->pc_conf_read = genppc_pci_indirect_conf_read;
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pc->pc_conf_write = genppc_pci_indirect_conf_write;
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pc->pc_intr_v = (void *)pc;
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pc->pc_intr_map = genppc_pci_intr_map;
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pc->pc_intr_string = genppc_pci_intr_string;
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pc->pc_intr_evcnt = genppc_pci_intr_evcnt;
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pc->pc_intr_establish = genppc_pci_intr_establish;
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pc->pc_intr_disestablish = genppc_pci_intr_disestablish;
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pc->pc_conf_interrupt = genppc_pci_conf_interrupt;
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pc->pc_decompose_tag = genppc_pci_indirect_decompose_tag;
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pc->pc_conf_hook = ibmnws_pci_conf_hook;
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pc->pc_addr = mapiodev(PCI_MODE1_ADDRESS_REG, 4);
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pc->pc_data = mapiodev(PCI_MODE1_DATA_REG, 4);
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pc->pc_bus = 0;
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pc->pc_node = 0;
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pc->pc_memt = 0;
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pc->pc_iot = 0;
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}
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int
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ibmnws_pci_bus_maxdevs(pci_chipset_tag_t pct, int busno)
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{
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/*
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* Bus number is irrelevant. Configuration Mechanism 1 is in
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* use, can have devices 0-32 (i.e. the `normal' range).
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*/
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return (32);
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}
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int
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ibmnws_pci_conf_hook(pci_chipset_tag_t pct, int bus, int dev, int func, pcireg_t id)
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{
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/*
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* The P9100 board found in some IBM machines cannot be
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* over-configured.
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*/
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if (PCI_VENDOR(id) == PCI_VENDOR_WEITEK &&
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PCI_PRODUCT(id) == PCI_PRODUCT_WEITEK_P9100)
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return 0;
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return (PCI_CONF_DEFAULT);
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}
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