278 lines
7.0 KiB
C
278 lines
7.0 KiB
C
/* $NetBSD: tsc.c,v 1.5 2000/11/29 06:30:09 thorpej Exp $ */
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/*-
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* Copyright (c) 1999 by Ross Harvey. 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 Ross Harvey.
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* 4. The name of Ross Harvey 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 ROSS HARVEY ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURP0SE
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* ARE DISCLAIMED. IN NO EVENT SHALL ROSS HARVEY BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "opt_dec_6600.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: tsc.c,v 1.5 2000/11/29 06:30:09 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/autoconf.h>
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#include <machine/rpb.h>
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#include <machine/sysarch.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <alpha/pci/tsreg.h>
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#include <alpha/pci/tsvar.h>
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#ifdef DEC_6600
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#include <alpha/pci/pci_6600.h>
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#endif
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#define tsc() { Generate ctags(1) key. }
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int tscmatch __P((struct device *, struct cfdata *, void *));
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void tscattach __P((struct device *, struct device *, void *));
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struct cfattach tsc_ca = {
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sizeof(struct tsc_softc), tscmatch, tscattach,
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};
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extern struct cfdriver tsc_cd;
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struct tsp_config tsp_configuration[2];
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static int tscprint __P((void *, const char *pnp));
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int tspmatch __P((struct device *, struct cfdata *, void *));
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void tspattach __P((struct device *, struct device *, void *));
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struct cfattach tsp_ca = {
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sizeof(struct tsp_softc), tspmatch, tspattach,
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};
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extern struct cfdriver tsp_cd;
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static int tspprint __P((void *, const char *pnp));
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static int tsp_bus_get_window __P((int, int,
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struct alpha_bus_space_translation *));
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/* There can be only one */
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static int tscfound;
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/* Which hose is the display console connected to? */
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int tsp_console_hose;
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int
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tscmatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct mainbus_attach_args *ma = aux;
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return cputype == ST_DEC_6600
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&& strcmp(ma->ma_name, tsc_cd.cd_name) == 0
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&& !tscfound;
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}
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void tscattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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int i;
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int nbus;
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u_int64_t csc, aar;
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struct tsp_attach_args tsp;
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struct mainbus_attach_args *ma = aux;
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tscfound = 1;
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csc = LDQP(TS_C_CSC);
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nbus = 1 + (CSC_BC(csc) >= 2);
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printf(": 21272 Core Logic Chipset, Cchip rev %d\n"
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"%s%d: %c Dchips, %d memory bus%s of %d bytes\n",
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(int)MISC_REV(LDQP(TS_C_MISC)),
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ma->ma_name, ma->ma_slot, "2448"[CSC_BC(csc)],
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nbus, nbus > 1 ? "es" : "", 16 + 16 * ((csc & CSC_AW) != 0));
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printf("%s%d: arrays present: ", ma->ma_name, ma->ma_slot);
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for(i = 0; i < 4; ++i) {
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aar = LDQP(TS_C_AAR0 + i * TS_STEP);
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printf("%s%dMB%s", i ? ", " : "", (8 << AAR_ASIZ(aar)) & ~0xf,
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aar & AAR_SPLIT ? " (split)" : "");
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}
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printf(", Dchip 0 rev %d\n", (int)LDQP(TS_D_DREV) & 0xf);
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bzero(&tsp, sizeof tsp);
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tsp.tsp_name = "tsp";
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config_found(self, &tsp, NULL);
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if(LDQP(TS_C_CSC) & CSC_P1P) {
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++tsp.tsp_slot;
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config_found(self, &tsp, tscprint);
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}
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}
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static int
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tscprint(aux, p)
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void *aux;
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const char *p;
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{
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register struct tsp_attach_args *tsp = aux;
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if(p)
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printf("%s%d at %s", tsp->tsp_name, tsp->tsp_slot, p);
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return UNCONF;
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}
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#define tsp() { Generate ctags(1) key. }
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int
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tspmatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct tsp_attach_args *t = aux;
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return cputype == ST_DEC_6600
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&& strcmp(t->tsp_name, tsp_cd.cd_name) == 0;
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}
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void
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tspattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pcibus_attach_args pba;
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struct tsp_attach_args *t = aux;
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struct tsp_config *pcp;
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printf("\n");
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pcp = tsp_init(1, t->tsp_slot);
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tsp_dma_init(pcp);
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/*
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* Do PCI memory initialization that needs to be deferred until
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* malloc is safe. On the Tsunami, we need to do this after
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* DMA is initialized, as well.
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*/
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tsp_bus_mem_init2(&pcp->pc_memt, pcp);
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pci_6600_pickintr(pcp);
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pba.pba_busname = "pci";
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pba.pba_iot = &pcp->pc_iot;
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pba.pba_memt = &pcp->pc_memt;
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pba.pba_dmat =
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alphabus_dma_get_tag(&pcp->pc_dmat_direct, ALPHA_BUS_PCI);
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pba.pba_pc = &pcp->pc_pc;
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pba.pba_bus = 0;
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pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED |
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PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY;
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config_found(self, &pba, tspprint);
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}
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struct tsp_config *
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tsp_init(mallocsafe, n)
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int mallocsafe;
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int n; /* Pchip number */
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{
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struct tsp_config *pcp;
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KASSERT((n | 1) == 1);
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pcp = &tsp_configuration[n];
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pcp->pc_pslot = n;
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pcp->pc_iobase = TS_Pn(n, 0);
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pcp->pc_csr = S_PAGE(TS_Pn(n, P_CSRBASE));
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if (!pcp->pc_initted) {
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tsp_bus_io_init(&pcp->pc_iot, pcp);
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tsp_bus_mem_init(&pcp->pc_memt, pcp);
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alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_IO] = 1;
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alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_MEM] = 1;
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alpha_bus_get_window = tsp_bus_get_window;
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}
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pcp->pc_mallocsafe = mallocsafe;
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tsp_pci_init(&pcp->pc_pc, pcp);
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pcp->pc_initted = 1;
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return pcp;
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}
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static int
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tspprint(aux, p)
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void *aux;
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const char *p;
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{
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register struct pcibus_attach_args *pci = aux;
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if(p)
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printf("%s at %s", pci->pba_busname, p);
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printf(" bus %d", pci->pba_bus);
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return UNCONF;
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}
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static int
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tsp_bus_get_window(type, window, abst)
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int type, window;
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struct alpha_bus_space_translation *abst;
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{
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struct tsp_config *tsp = &tsp_configuration[tsp_console_hose];
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bus_space_tag_t st;
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int error;
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switch (type) {
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case ALPHA_BUS_TYPE_PCI_IO:
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st = &tsp->pc_iot;
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break;
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case ALPHA_BUS_TYPE_PCI_MEM:
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st = &tsp->pc_memt;
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break;
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default:
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panic("tsp_bus_get_window");
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}
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error = alpha_bus_space_get_window(st, window, abst);
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if (error)
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return (error);
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abst->abst_sys_start = TS_PHYSADDR(abst->abst_sys_start);
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abst->abst_sys_end = TS_PHYSADDR(abst->abst_sys_end);
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return (0);
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}
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