/* $NetBSD: ofwpci.c,v 1.14 2017/01/11 18:19:29 christos Exp $ */ /*- * Copyright (c) 2007 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Tim Rightnour * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: ofwpci.c,v 1.14 2017/01/11 18:19:29 christos Exp $"); #include "opt_pci.h" #include #include #include #include #include #include #include #include #include #include #include #include struct ofwpci_softc { device_t sc_dev; struct genppc_pci_chipset sc_pc; struct powerpc_bus_space sc_iot; struct powerpc_bus_space sc_memt; }; static void ofwpci_attach(device_t, device_t, void *); static int ofwpci_match(device_t, cfdata_t, void *); CFATTACH_DECL_NEW(ofwpci, sizeof(struct ofwpci_softc), ofwpci_match, ofwpci_attach, NULL, NULL); extern struct genppc_pci_chipset *genppc_pct; extern struct model_data modeldata; static void ofwpci_get_chipset_tag(pci_chipset_tag_t pc) { pc->pc_conf_v = (void *)pc; pc->pc_attach_hook = genppc_pci_ofmethod_attach_hook; pc->pc_bus_maxdevs = genppc_pci_bus_maxdevs; pc->pc_make_tag = genppc_pci_ofmethod_make_tag; pc->pc_conf_read = genppc_pci_ofmethod_conf_read; pc->pc_conf_write = genppc_pci_ofmethod_conf_write; pc->pc_intr_v = (void *)pc; pc->pc_intr_map = genofw_pci_intr_map; pc->pc_intr_string = genppc_pci_intr_string; pc->pc_intr_evcnt = genppc_pci_intr_evcnt; pc->pc_intr_establish = genppc_pci_intr_establish; pc->pc_intr_disestablish = genppc_pci_intr_disestablish; pc->pc_intr_setattr = genppc_pci_intr_setattr; pc->pc_intr_type = genppc_pci_intr_type; pc->pc_intr_alloc = genppc_pci_intr_alloc; pc->pc_intr_release = genppc_pci_intr_release; pc->pc_intx_alloc = genppc_pci_intx_alloc; pc->pc_msi_v = (void *)pc; genppc_pci_chipset_msi_init(pc); pc->pc_msix_v = (void *)pc; genppc_pci_chipset_msix_init(pc); pc->pc_conf_interrupt = genppc_pci_conf_interrupt; pc->pc_decompose_tag = genppc_pci_ofmethod_decompose_tag; pc->pc_conf_hook = genofw_pci_conf_hook; pc->pc_addr = 0; pc->pc_data = 0; pc->pc_bus = 0; pc->pc_node = 0; pc->pc_memt = 0; pc->pc_iot = 0; pc->pc_ihandle = 0; } static int ofwpci_match(device_t parent, cfdata_t cf, void *aux) { struct confargs *ca = aux; char name[32]; if (strcmp(ca->ca_name, "pci") != 0) return 0; memset(name, 0, sizeof(name)); OF_getprop(ca->ca_node, "device_type", name, sizeof(name)); if (strcmp(name, "pci") != 0) return 0; return 1; } static void ofwpci_attach(device_t parent, device_t self, void *aux) { struct ofwpci_softc *sc = device_private(self); pci_chipset_tag_t pc = &sc->sc_pc; struct confargs *ca = aux; struct pcibus_attach_args pba; struct genppc_pci_chipset_businfo *pbi; int node = ca->ca_node; int i; uint32_t busrange[2]; char buf[64]; #ifdef PCI_NETBSD_CONFIGURE struct extent *ioext, *memext; #endif aprint_normal("\n"); sc->sc_dev = self; /* PCI bus number */ if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) return; /* bus space map the io ranges */ sc->sc_iot.pbs_flags = _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_IO_TYPE; sc->sc_iot.pbs_base = 0x00000000; if (ofwoea_map_space(RANGE_TYPE_PCI, RANGE_IO, node, &sc->sc_iot, "ofwpci io-space") != 0) panic("Can't init ofwpci io tag"); sc->sc_memt.pbs_flags = _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE; sc->sc_memt.pbs_base = 0x00000000; if (ofwoea_map_space(RANGE_TYPE_PCI, RANGE_MEM, node, &sc->sc_memt, "ofwpci mem-space") != 0) panic("Can't init ofwpci mem tag"); aprint_debug("io base=0x%"PRIxPTR" offset=0x%"PRIxPTR" limit=0x%"PRIxPTR"\n", sc->sc_iot.pbs_base, sc->sc_iot.pbs_offset, sc->sc_iot.pbs_limit); aprint_debug("mem base=0x%"PRIxPTR" offset=0x%"PRIxPTR" limit=0x%"PRIxPTR"\n", sc->sc_memt.pbs_base, sc->sc_memt.pbs_offset, sc->sc_memt.pbs_limit); /* are we the primary pci bus? */ if (of_find_firstchild_byname(OF_finddevice("/"), "pci") == node) { int isa_node; /* yes we are, now do we have an ISA child? */ isa_node = of_find_firstchild_byname(node, "isa"); if (isa_node != -1) { /* isa == pci */ genppc_isa_io_space_tag = sc->sc_iot; genppc_isa_mem_space_tag = sc->sc_memt; map_isa_ioregs(); init_ofppc_interrupt(); ofppc_init_comcons(isa_node); } } ofwpci_get_chipset_tag(pc); pc->pc_node = node; i = OF_package_to_path(node, buf, sizeof(buf)-5); if (i <= 0) panic("Can't determine path for pci node %d", node); buf[i] = '\0'; pc->pc_ihandle = OF_open(buf); if (pc->pc_ihandle < 0) panic("Can't open device %s", buf); pc->pc_bus = busrange[0]; pc->pc_iot = &sc->sc_iot; pc->pc_memt = &sc->sc_memt; pbi = malloc(sizeof(struct genppc_pci_chipset_businfo), M_DEVBUF, M_NOWAIT); KASSERT(pbi != NULL); pbi->pbi_properties = prop_dictionary_create(); KASSERT(pbi->pbi_properties != NULL); SIMPLEQ_INIT(&pc->pc_pbi); SIMPLEQ_INSERT_TAIL(&pc->pc_pbi, pbi, next); genofw_setup_pciintr_map((void *)pc, pbi, pc->pc_node); #ifdef PCI_NETBSD_CONFIGURE ioext = extent_create("pciio", modeldata.pciiodata[device_unit(self)].start, modeldata.pciiodata[device_unit(self)].limit, NULL, 0, EX_NOWAIT); memext = extent_create("pcimem", sc->sc_memt.pbs_base, sc->sc_memt.pbs_limit-1, NULL, 0, EX_NOWAIT); if (pci_configure_bus(pc, ioext, memext, NULL, 0, CACHELINESIZE)) aprint_error("pci_configure_bus() failed\n"); extent_destroy(ioext); extent_destroy(memext); #endif /* PCI_NETBSD_CONFIGURE */ memset(&pba, 0, sizeof(pba)); pba.pba_memt = pc->pc_memt; pba.pba_iot = pc->pc_iot; pba.pba_dmat = &pci_bus_dma_tag; pba.pba_dmat64 = NULL; pba.pba_bus = pc->pc_bus; pba.pba_bridgetag = NULL; pba.pba_pc = pc; pba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY; config_found_ia(self, "pcibus", &pba, pcibusprint); }