/* $NetBSD: irongate.c,v 1.7 2002/05/16 01:01:32 thorpej Exp $ */ /*- * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of Wasabi Systems, Inc. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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 "opt_api_up1000.h" #include __KERNEL_RCSID(0, "$NetBSD: irongate.c,v 1.7 2002/05/16 01:01:32 thorpej Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef API_UP1000 #include #endif int irongate_match(struct device *, struct cfdata *, void *); void irongate_attach(struct device *, struct device *, void *); struct cfattach irongate_ca = { sizeof(struct irongate_softc), irongate_match, irongate_attach, }; int irongate_print(void *, const char *pnp); extern struct cfdriver irongate_cd; /* There can be only one. */ struct irongate_config irongate_configuration; int irongate_found; int irongate_bus_get_window(int, int, struct alpha_bus_space_translation *); /* * Set up the chipset's function pointers. */ void irongate_init(struct irongate_config *icp, int mallocsafe) { pcitag_t tag; pcireg_t reg; icp->ic_mallocsafe = mallocsafe; /* * Set up PCI configuration space; we can only read the * revision info through configuration space. */ irongate_pci_init(&icp->ic_pc, icp); alpha_pci_chipset = &icp->ic_pc; tag = pci_make_tag(&icp->ic_pc, 0, IRONGATE_PCIHOST_DEV, 0); /* Read the revision. */ reg = irongate_conf_read0(icp, tag, PCI_CLASS_REG); icp->ic_rev = PCI_REVISION(reg); if (icp->ic_initted == 0) { /* Don't do these twice, since they set up extents. */ irongate_bus_io_init(&icp->ic_iot, icp); irongate_bus_mem_init(&icp->ic_memt, icp); /* Only one each PCI I/O and MEM window. */ alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_IO] = 1; alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_MEM] = 1; alpha_bus_get_window = irongate_bus_get_window; } icp->ic_initted = 1; } int irongate_match(struct device *parent, struct cfdata *match, void *aux) { struct mainbus_attach_args *ma = aux; /* Make sure we're looking for an Irongate. */ if (strcmp(ma->ma_name, irongate_cd.cd_name) != 0) return (0); if (irongate_found) return (0); return (1); } void irongate_attach(struct device *parent, struct device *self, void *aux) { struct irongate_softc *sc = (void *) self; struct irongate_config *icp; struct pcibus_attach_args pba; struct agpbus_attach_args apa; pcitag_t tag; /* Note that we've attached the chipset; can't have 2 Irongates. */ irongate_found = 1; /* * Set up the chipset's info; done once at console init time * (maybe), but we must do it here as well to take care of things * that need to use memory allocation. */ icp = sc->sc_icp = &irongate_configuration; irongate_init(icp, 1); printf(": AMD 751 Core Logic + AGP Chipset, rev. %d\n", icp->ic_rev); irongate_dma_init(icp); /* * Do PCI memory initialization that needs to be deferred until * malloc is safe. */ irongate_bus_mem_init2(&icp->ic_memt, icp); switch (cputype) { #ifdef API_UP1000 case ST_API_NAUTILUS: pci_up1000_pickintr(icp); break; #endif default: panic("irongate_attach: shouldn't be here, really..."); } tag = pci_make_tag(&icp->ic_pc, 0, IRONGATE_PCIHOST_DEV, 0); pba.pba_busname = "pci"; pba.pba_iot = &icp->ic_iot; pba.pba_memt = &icp->ic_memt; pba.pba_dmat = alphabus_dma_get_tag(&icp->ic_dmat_pci, ALPHA_BUS_PCI); pba.pba_pc = &icp->ic_pc; pba.pba_bus = 0; pba.pba_bridgetag = NULL; pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED | PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY; if (pci_get_capability(&icp->ic_pc, tag, PCI_CAP_AGP, NULL, NULL) != 0) { apa.apa_busname = "agp"; apa.apa_pci_args.pa_iot = pba.pba_iot; apa.apa_pci_args.pa_memt = pba.pba_memt; apa.apa_pci_args.pa_dmat = pba.pba_dmat; apa.apa_pci_args.pa_pc = pba.pba_pc; apa.apa_pci_args.pa_bus = pba.pba_bus; apa.apa_pci_args.pa_device = IRONGATE_PCIHOST_DEV; apa.apa_pci_args.pa_function = 0; apa.apa_pci_args.pa_tag = tag; apa.apa_pci_args.pa_id = irongate_conf_read0(icp, tag, PCI_ID_REG); apa.apa_pci_args.pa_class = irongate_conf_read0(icp, tag, PCI_CLASS_REG); apa.apa_pci_args.pa_flags = pba.pba_flags; (void) config_found(self, &apa, irongate_print); } (void) config_found(self, &pba, irongate_print); } int irongate_print(void *aux, const char *pnp) { struct pcibus_attach_args *pba = aux; /* Only PCIs can attach to Irongates; easy. */ if (pnp != NULL) printf("%s at %s", pba->pba_busname, pnp); if (strcmp(pba->pba_busname, "pci") == 0) printf(" bus %d", pba->pba_bus); return (UNCONF); } int irongate_bus_get_window(int type, int window, struct alpha_bus_space_translation *abst) { struct irongate_config *icp = &irongate_configuration; bus_space_tag_t st; int error; switch (type) { case ALPHA_BUS_TYPE_PCI_IO: st = &icp->ic_iot; break; case ALPHA_BUS_TYPE_PCI_MEM: st = &icp->ic_memt; break; default: panic("irongate_bus_get_window"); } error = alpha_bus_space_get_window(st, window, abst); if (error) return (error); abst->abst_sys_start = IRONGATE_PHYSADDR(abst->abst_sys_start); abst->abst_sys_end = IRONGATE_PHYSADDR(abst->abst_sys_end); return (0); }