/* $OpenBSD: apecs.c,v 1.11 2001/02/16 08:23:38 jason Exp $ */ /* $NetBSD: apecs.c,v 1.16 1996/12/05 01:39:34 cgd Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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. */ /* * Copyright (c) 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef DEC_2100_A50 #include #endif #ifdef DEC_EB64PLUS #include #endif #ifdef DEC_1000A #include #endif #ifdef DEC_1000 #include #endif int apecsmatch __P((struct device *, void *, void *)); void apecsattach __P((struct device *, struct device *, void *)); struct cfattach apecs_ca = { sizeof(struct apecs_softc), apecsmatch, apecsattach, }; struct cfdriver apecs_cd = { NULL, "apecs", DV_DULL, }; int apecsprint __P((void *, const char *pnp)); /* There can be only one. */ int apecsfound; struct apecs_config apecs_configuration; int apecsmatch(parent, match, aux) struct device *parent; void *match; void *aux; { struct mainbus_attach_args *ma = aux; /* Make sure that we're looking for an APECS. */ if (strcmp(ma->ma_name, apecs_cd.cd_name) != 0) return (0); if (apecsfound) return (0); return (1); } /* * Set up the chipset's function pointers. */ void apecs_init(acp, mallocsafe) struct apecs_config *acp; int mallocsafe; { acp->ac_comanche_pass2 = (REGVAL(COMANCHE_ED) & COMANCHE_ED_PASS2) != 0; acp->ac_memwidth = (REGVAL(COMANCHE_GCR) & COMANCHE_GCR_WIDEMEM) != 0 ? 128 : 64; acp->ac_epic_pass2 = (REGVAL(EPIC_DCSR) & EPIC_DCSR_PASS2) != 0; acp->ac_haxr1 = REGVAL(EPIC_HAXR1); acp->ac_haxr2 = REGVAL(EPIC_HAXR2); if (!acp->ac_initted) { /* don't do these twice since they set up extents */ acp->ac_iot = apecs_bus_io_init(acp); acp->ac_memt = apecs_bus_mem_init(acp); #if 0 /* * We have two I/O windows and 3 MEM windows. */ alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_IO] = 2; alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_MEM] = 3; alpha_bus_get_window = apecs_bus_get_window; #endif } acp->ac_mallocsafe = mallocsafe; apecs_pci_init(&acp->ac_pc, acp); acp->ac_initted = 1; } void apecsattach(parent, self, aux) struct device *parent, *self; void *aux; { struct apecs_softc *sc = (struct apecs_softc *)self; struct apecs_config *acp; struct pcibus_attach_args pba; /* note that we've attached the chipset; can't have 2 APECSes. */ apecsfound = 1; /* * set up the chipset's info; done once at console init time * (maybe), but doesn't hurt to do twice. */ acp = sc->sc_acp = &apecs_configuration; apecs_init(acp, 1); apecs_dma_init(acp); printf(": DECchip %s Core Logic chipset\n", acp->ac_memwidth == 128 ? "21072" : "21071"); printf("%s: DC21071-CA pass %d, %d-bit memory bus\n", self->dv_xname, acp->ac_comanche_pass2 ? 2 : 1, acp->ac_memwidth); printf("%s: DC21071-DA pass %d\n", self->dv_xname, acp->ac_epic_pass2 ? 2 : 1); /* XXX print bcache size */ if (!acp->ac_epic_pass2) printf("WARNING: 21071-DA NOT PASS2... NO BETS...\n"); switch (cputype) { #ifdef DEC_2100_A50 case ST_DEC_2100_A50: pci_2100_a50_pickintr(acp); break; #endif #ifdef DEC_EB64PLUS case ST_EB64P: pci_eb64plus_pickintr(acp); break; #endif #ifdef DEC_1000A case ST_DEC_1000A: pci_1000a_pickintr(acp, &acp->ac_iot, &acp->ac_memt, &acp->ac_pc); break; #endif #ifdef DEC_1000 case ST_DEC_1000: pci_1000_pickintr(acp, &acp->ac_iot, &acp->ac_memt, &acp->ac_pc); break; #endif default: panic("apecsattach: shouldn't be here, really..."); } pba.pba_busname = "pci"; pba.pba_iot = acp->ac_iot; pba.pba_memt = acp->ac_memt; pba.pba_dmat = alphabus_dma_get_tag(&acp->ac_dmat_direct, ALPHA_BUS_PCI); pba.pba_pc = &acp->ac_pc; pba.pba_bus = 0; #ifdef notyet pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED | PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY; #endif config_found(self, &pba, apecsprint); } int apecsprint(aux, pnp) void *aux; const char *pnp; { register struct pcibus_attach_args *pba = aux; /* only PCIs can attach to APECSes; easy. */ if (pnp) printf("%s at %s", pba->pba_busname, pnp); printf(" bus %d", pba->pba_bus); return (UNCONF); } #if 0 int apecs_bus_get_window(type, window, abst) int type, window; struct alpha_bus_space_translation *abst; { struct apecs_config *acp = &apecs_configuration; bus_space_tag_t st; switch (type) { case ALPHA_BUS_TYPE_PCI_IO: st = &acp->ac_iot; break; case ALPHA_BUS_TYPE_PCI_MEM: st = &acp->ac_memt; break; default: panic("apecs_bus_get_window"); } return (alpha_bus_space_get_window(st, window, abst)); } #endif