258 lines
7.2 KiB
C
258 lines
7.2 KiB
C
/* $NetBSD: irongate.c,v 1.9 2002/10/02 04:06:39 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 <sys/cdefs.h>
|
|
|
|
__KERNEL_RCSID(0, "$NetBSD: irongate.c,v 1.9 2002/10/02 04:06:39 thorpej Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <machine/rpb.h>
|
|
#include <machine/sysarch.h>
|
|
|
|
#include <dev/isa/isareg.h>
|
|
#include <dev/isa/isavar.h>
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/agpvar.h>
|
|
|
|
#include <alpha/pci/irongatereg.h>
|
|
#include <alpha/pci/irongatevar.h>
|
|
|
|
#ifdef API_UP1000
|
|
#include <alpha/pci/pci_up1000.h>
|
|
#endif
|
|
|
|
int irongate_match(struct device *, struct cfdata *, void *);
|
|
void irongate_attach(struct device *, struct device *, void *);
|
|
|
|
CFATTACH_DECL(irongate, sizeof(struct irongate_softc),
|
|
irongate_match, irongate_attach, NULL, NULL);
|
|
|
|
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);
|
|
}
|