ofw_pcib.c revision 216962
1178825Sdfr/*- 2178825Sdfr * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier 3178825Sdfr * Copyright (c) 2000 Michael Smith <msmith@freebsd.org> 4178825Sdfr * Copyright (c) 2000 BSDi 5178825Sdfr * Copyright (c) 2001 - 2003 Thomas Moestl <tmm@FreeBSD.org> 6178825Sdfr * Copyright (c) 2009 by Marius Strobl <marius@FreeBSD.org> 7178825Sdfr * All rights reserved. 8178825Sdfr * 9178825Sdfr * Redistribution and use in source and binary forms, with or without 10178825Sdfr * modification, are permitted provided that the following conditions 11178825Sdfr * are met: 12178825Sdfr * 1. Redistributions of source code must retain the above copyright 13178825Sdfr * notice, this list of conditions and the following disclaimer. 14178825Sdfr * 2. Redistributions in binary form must reproduce the above copyright 15178825Sdfr * notice, this list of conditions and the following disclaimer in the 16178825Sdfr * documentation and/or other materials provided with the distribution. 17178825Sdfr * 3. The name of the author may not be used to endorse or promote products 18178825Sdfr * derived from this software without specific prior written permission. 19178825Sdfr * 20178825Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21178825Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22178825Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23178825Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24178825Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25178825Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26178825Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27178825Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28178825Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29178825Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30178825Sdfr * SUCH DAMAGE. 31178825Sdfr * 32178825Sdfr * from: FreeBSD: src/sys/dev/pci/pci_pci.c,v 1.3 2000/12/13 33178825Sdfr */ 34178825Sdfr 35178825Sdfr#include <sys/cdefs.h> 36178825Sdfr__FBSDID("$FreeBSD: head/sys/sparc64/pci/ofw_pcib.c 216962 2011-01-04 16:21:14Z marius $"); 37178825Sdfr 38178825Sdfr#include "opt_ofw_pci.h" 39178825Sdfr 40178825Sdfr#include <sys/param.h> 41178825Sdfr#include <sys/bus.h> 42178825Sdfr#include <sys/kernel.h> 43178825Sdfr#include <sys/libkern.h> 44178825Sdfr#include <sys/module.h> 45178825Sdfr 46178825Sdfr#include <dev/ofw/ofw_bus.h> 47178825Sdfr#include <dev/ofw/openfirm.h> 48178825Sdfr 49178825Sdfr#include <machine/bus.h> 50178825Sdfr 51178825Sdfr#include <dev/pci/pcireg.h> 52178825Sdfr#include <dev/pci/pcivar.h> 53178825Sdfr#include <dev/pci/pcib_private.h> 54178825Sdfr 55178825Sdfr#include "pcib_if.h" 56178825Sdfr 57178825Sdfr#include <sparc64/pci/ofw_pci.h> 58178825Sdfr#include <sparc64/pci/ofw_pcib_subr.h> 59178825Sdfr 60178825Sdfrstatic device_probe_t ofw_pcib_probe; 61178825Sdfrstatic device_attach_t ofw_pcib_attach; 62178825Sdfr 63178825Sdfrstatic device_method_t ofw_pcib_methods[] = { 64178825Sdfr /* Device interface */ 65178825Sdfr DEVMETHOD(device_probe, ofw_pcib_probe), 66178825Sdfr DEVMETHOD(device_attach, ofw_pcib_attach), 67178825Sdfr 68178825Sdfr /* Bus interface */ 69178825Sdfr 70178825Sdfr /* pcib interface */ 71178825Sdfr DEVMETHOD(pcib_route_interrupt, ofw_pcib_gen_route_interrupt), 72178825Sdfr 73178825Sdfr /* ofw_bus interface */ 74178825Sdfr DEVMETHOD(ofw_bus_get_node, ofw_pcib_gen_get_node), 75178825Sdfr 76178825Sdfr KOBJMETHOD_END 77178825Sdfr}; 78178825Sdfr 79178825Sdfrstatic devclass_t pcib_devclass; 80178825Sdfr 81178825SdfrDEFINE_CLASS_1(pcib, ofw_pcib_driver, ofw_pcib_methods, 82178825Sdfr sizeof(struct ofw_pcib_gen_softc), pcib_driver); 83178825SdfrEARLY_DRIVER_MODULE(ofw_pcib, pci, ofw_pcib_driver, pcib_devclass, 0, 0, 84178825Sdfr BUS_PASS_BUS); 85178825SdfrMODULE_DEPEND(ofw_pcib, pci, 1, 1, 1); 86178825Sdfr 87178825Sdfrstatic int 88178825Sdfrofw_pcib_probe(device_t dev) 89178825Sdfr{ 90178825Sdfr char desc[sizeof("OFW PCIe-PCIe bridge")]; 91178825Sdfr const char *dtype, *pbdtype; 92178825Sdfr 93178825Sdfr#define ISDTYPE(dtype, type) \ 94178825Sdfr (((dtype) != NULL) && strcmp((dtype), (type)) == 0) 95178825Sdfr 96178825Sdfr if ((pci_get_class(dev) == PCIC_BRIDGE) && 97178825Sdfr (pci_get_subclass(dev) == PCIS_BRIDGE_PCI) && 98178825Sdfr ofw_bus_get_node(dev) != 0) { 99178825Sdfr dtype = ofw_bus_get_type(dev); 100178825Sdfr pbdtype = ofw_bus_get_type(device_get_parent( 101178825Sdfr device_get_parent(dev))); 102178825Sdfr snprintf(desc, sizeof(desc), "OFW PCI%s-PCI%s bridge", 103178825Sdfr ISDTYPE(pbdtype, OFW_TYPE_PCIE) ? "e" : "", 104178825Sdfr ISDTYPE(dtype, OFW_TYPE_PCIE) ? "e" : ""); 105178825Sdfr device_set_desc_copy(dev, desc); 106178825Sdfr return (0); 107178825Sdfr } 108178825Sdfr 109178825Sdfr#undef ISDTYPE 110178825Sdfr 111178825Sdfr return (ENXIO); 112178825Sdfr} 113178825Sdfr 114178825Sdfrstatic int 115178825Sdfrofw_pcib_attach(device_t dev) 116178825Sdfr{ 117178825Sdfr struct ofw_pcib_gen_softc *sc; 118178825Sdfr 119178825Sdfr sc = device_get_softc(dev); 120178825Sdfr 121178825Sdfr /* Quirk handling */ 122178825Sdfr switch (pci_get_devid(dev)) { 123178825Sdfr /* 124178825Sdfr * The ALi M5249 found in Fire-based machines by definition must me 125178825Sdfr * subtractive as they have a ISA bridge on their secondary side but 126178825Sdfr * don't indicate this in the class code although the ISA I/O range 127178825Sdfr * isn't included in their bridge decode. 128178825Sdfr */ 129178825Sdfr case 0x524910b9: 130178825Sdfr sc->ops_pcib_sc.flags |= PCIB_SUBTRACTIVE; 131178825Sdfr break; 132178825Sdfr } 133178825Sdfr 134178825Sdfr ofw_pcib_gen_setup(dev); 135178825Sdfr pcib_attach_common(dev); 136178825Sdfr device_add_child(dev, "pci", -1); 137178825Sdfr return (bus_generic_attach(dev)); 138178825Sdfr} 139178825Sdfr