391 lines
11 KiB
C
391 lines
11 KiB
C
/* $NetBSD: obio.c,v 1.39 1998/01/25 19:44:43 pk Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Paul Kranenburg.
|
|
*
|
|
* 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) 1993, 1994 Theo de Raadt
|
|
* Copyright (c) 1995, 1997 Paul Kranenburg
|
|
* All rights reserved.
|
|
*
|
|
* 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 Theo de Raadt.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#ifdef DEBUG
|
|
#include <sys/proc.h>
|
|
#include <sys/syslog.h>
|
|
#endif
|
|
|
|
#include <vm/vm.h>
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <machine/pmap.h>
|
|
#include <machine/oldmon.h>
|
|
#include <machine/cpu.h>
|
|
#include <machine/ctlreg.h>
|
|
#include <sparc/sparc/asm.h>
|
|
#include <sparc/sparc/vaddrs.h>
|
|
#include <sparc/sparc/cpuvar.h>
|
|
#include <sparc/dev/sbusvar.h>
|
|
|
|
struct bus_softc {
|
|
union {
|
|
struct device scu_dev; /* base device */
|
|
struct sbus_softc scu_sbus; /* obio is another sbus slot */
|
|
} bu;
|
|
};
|
|
|
|
|
|
/* autoconfiguration driver */
|
|
int obioprint __P((void *, const char *));
|
|
static int obiomatch __P((struct device *, struct cfdata *, void *));
|
|
static void obioattach __P((struct device *, struct device *, void *));
|
|
|
|
#if defined(SUN4)
|
|
static void obioattach4 __P((struct device *, struct device *, void *));
|
|
int obiosearch __P((struct device *, struct cfdata *, void *));
|
|
#endif
|
|
#if defined(SUN4M)
|
|
static void obioattach4m __P((struct device *, struct device *, void *));
|
|
#endif
|
|
|
|
struct cfattach obio_ca = {
|
|
sizeof(struct bus_softc), obiomatch, obioattach
|
|
};
|
|
|
|
int
|
|
obiomatch(parent, cf, aux)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *aux;
|
|
{
|
|
register struct confargs *ca = aux;
|
|
register struct romaux *ra = &ca->ca_ra;
|
|
|
|
return (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0);
|
|
}
|
|
|
|
int
|
|
obioprint(args, name)
|
|
void *args;
|
|
const char *name;
|
|
{
|
|
register struct confargs *ca = args;
|
|
|
|
if (ca->ca_ra.ra_name == NULL)
|
|
ca->ca_ra.ra_name = "<unknown>";
|
|
|
|
if (name)
|
|
printf("[%s at %s]", ca->ca_ra.ra_name, name);
|
|
|
|
printf(" addr %p", ca->ca_ra.ra_paddr);
|
|
|
|
return (UNCONF);
|
|
}
|
|
|
|
void
|
|
obioattach(parent, self, args)
|
|
struct device *parent, *self;
|
|
void *args;
|
|
{
|
|
#if defined(SUN4)
|
|
if (CPU_ISSUN4)
|
|
obioattach4(parent, self, args);
|
|
#endif
|
|
#if defined(SUN4M)
|
|
if (CPU_ISSUN4M)
|
|
obioattach4m(parent, self, args);
|
|
#endif
|
|
}
|
|
|
|
#if defined(SUN4)
|
|
void
|
|
obioattach4(parent, self, args)
|
|
struct device *parent, *self;
|
|
void *args;
|
|
{
|
|
if (self->dv_unit > 0) {
|
|
printf(" unsupported\n");
|
|
return;
|
|
}
|
|
|
|
printf("\n");
|
|
(void)config_search(obiosearch, self, args);
|
|
obio_bus_untmp();
|
|
}
|
|
#endif
|
|
|
|
#if defined(SUN4M)
|
|
void
|
|
obioattach4m(parent, self, args)
|
|
struct device *parent, *self;
|
|
void *args;
|
|
{
|
|
register struct bus_softc *sc = (struct bus_softc *)self;
|
|
struct confargs oca, *ca = args;
|
|
register struct romaux *ra = &ca->ca_ra;
|
|
register int node0, node;
|
|
register char *name;
|
|
register const char *sp;
|
|
const char *const *ssp;
|
|
int rlen;
|
|
extern int autoconf_nzs;
|
|
|
|
static const char *const special4m[] = {
|
|
/* find these first */
|
|
"eeprom",
|
|
"counter",
|
|
#if 0 /* Not all sun4m's have an `auxio' */
|
|
"auxio",
|
|
#endif
|
|
"",
|
|
/* place device to ignore here */
|
|
"interrupt",
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* There is only one obio bus (it is in fact one of the Sbus slots)
|
|
*/
|
|
if (self->dv_unit > 0) {
|
|
printf(" unsupported\n");
|
|
return;
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
if (ra->ra_bp != NULL && strcmp(ra->ra_bp->name, "obio") == 0)
|
|
oca.ca_ra.ra_bp = ra->ra_bp + 1;
|
|
else
|
|
oca.ca_ra.ra_bp = NULL;
|
|
|
|
node = ra->ra_node;
|
|
rlen = getproplen(node, "ranges");
|
|
if (rlen > 0) {
|
|
sc->bu.scu_sbus.sc_nrange = rlen / sizeof(struct rom_range);
|
|
sc->bu.scu_sbus.sc_range =
|
|
(struct rom_range *)malloc(rlen, M_DEVBUF, M_NOWAIT);
|
|
if (sc->bu.scu_sbus.sc_range == 0)
|
|
panic("obio: PROM ranges too large: %d", rlen);
|
|
(void)getprop(node, "ranges", sc->bu.scu_sbus.sc_range, rlen);
|
|
}
|
|
|
|
/*
|
|
* Loop through ROM children, fixing any relative addresses
|
|
* and then configuring each device.
|
|
* We first do the crucial ones, such as eeprom, etc.
|
|
*/
|
|
node0 = firstchild(ra->ra_node);
|
|
for (ssp = special4m ; *(sp = *ssp) != 0; ssp++) {
|
|
if ((node = findnode(node0, sp)) == 0) {
|
|
printf("could not find %s amongst obio devices\n", sp);
|
|
panic(sp);
|
|
}
|
|
if (!romprop(&oca.ca_ra, sp, node))
|
|
continue;
|
|
|
|
sbus_translate(self, &oca);
|
|
oca.ca_bustype = BUS_OBIO;
|
|
(void) config_found(self, (void *)&oca, obioprint);
|
|
}
|
|
|
|
for (node = node0; node; node = nextsibling(node)) {
|
|
name = getpropstring(node, "name");
|
|
for (ssp = special4m ; (sp = *ssp) != NULL; ssp++)
|
|
if (strcmp(name, sp) == 0)
|
|
break;
|
|
|
|
if (sp != NULL || !romprop(&oca.ca_ra, name, node))
|
|
continue;
|
|
|
|
if (strcmp(name, "zs") == 0)
|
|
/* XXX - see autoconf.c for this hack */
|
|
autoconf_nzs++;
|
|
|
|
/* Translate into parent address spaces */
|
|
sbus_translate(self, &oca);
|
|
oca.ca_bustype = BUS_OBIO;
|
|
(void) config_found(self, (void *)&oca, obioprint);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
#if defined(SUN4)
|
|
int
|
|
obiosearch(parent, cf, args)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *args;
|
|
{
|
|
register struct confargs *ca = args;
|
|
struct confargs oca;
|
|
caddr_t tmp;
|
|
|
|
|
|
/*
|
|
* Avoid sun4m entries which don't have valid PAs.
|
|
* no point in even probing them.
|
|
*/
|
|
if (cf->cf_loc[0] == -1)
|
|
return (0);
|
|
|
|
/*
|
|
* On the 4/100 obio addresses must be mapped at
|
|
* 0x0YYYYYYY, but alias higher up (we avoid the
|
|
* alias condition because it causes pmap difficulties)
|
|
* XXX: We also assume that 4/[23]00 obio addresses
|
|
* must be 0xZYYYYYYY, where (Z != 0)
|
|
*/
|
|
if (cpuinfo.cpu_type == CPUTYP_4_100 &&
|
|
(cf->cf_loc[0] & 0xf0000000))
|
|
return (0);
|
|
if (cpuinfo.cpu_type != CPUTYP_4_100 &&
|
|
!(cf->cf_loc[0] & 0xf0000000))
|
|
return (0);
|
|
|
|
oca.ca_ra.ra_paddr = (void *)cf->cf_loc[0];
|
|
oca.ca_ra.ra_len = 0;
|
|
oca.ca_ra.ra_nreg = 1;
|
|
oca.ca_ra.ra_iospace = PMAP_OBIO;
|
|
|
|
if (oca.ca_ra.ra_paddr)
|
|
tmp = (caddr_t)mapdev(oca.ca_ra.ra_reg, TMPMAP_VA, 0, NBPG);
|
|
else
|
|
tmp = NULL;
|
|
oca.ca_ra.ra_vaddr = tmp;
|
|
oca.ca_ra.ra_intr[0].int_pri = cf->cf_loc[1];
|
|
oca.ca_ra.ra_intr[0].int_vec = -1;
|
|
oca.ca_ra.ra_nintr = 1;
|
|
oca.ca_ra.ra_name = cf->cf_driver->cd_name;
|
|
|
|
if (ca->ca_ra.ra_bp != NULL &&
|
|
strcmp(ca->ca_ra.ra_bp->name, "obio") == 0)
|
|
oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
|
|
else
|
|
oca.ca_ra.ra_bp = NULL;
|
|
|
|
oca.ca_bustype = BUS_OBIO;
|
|
|
|
if ((*cf->cf_attach->ca_match)(parent, cf, &oca) == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Check if XXmatch routine replaced the temporary mapping with
|
|
* a real mapping. If not, then make sure we don't pass the
|
|
* tmp mapping to the attach routine.
|
|
*/
|
|
if (oca.ca_ra.ra_vaddr == tmp)
|
|
oca.ca_ra.ra_vaddr = NULL; /* wipe out tmp address */
|
|
/*
|
|
* the match routine will set "ra_len" if it wants us to
|
|
* establish a mapping for it.
|
|
* (which won't be seen on future XXmatch calls,
|
|
* so not as useful as it seems.)
|
|
*/
|
|
if (oca.ca_ra.ra_len)
|
|
oca.ca_ra.ra_vaddr =
|
|
obio_bus_map(oca.ca_ra.ra_reg, oca.ca_ra.ra_len);
|
|
|
|
config_attach(parent, cf, &oca, obioprint);
|
|
return (1);
|
|
}
|
|
|
|
#define getpte(va) lda(va, ASI_PTE)
|
|
|
|
/*
|
|
* If we can find a mapping that was established by the rom, use it.
|
|
* Else, create a new mapping.
|
|
*/
|
|
void *
|
|
obio_bus_map(pa, len)
|
|
struct rom_reg *pa;
|
|
int len;
|
|
{
|
|
|
|
if (CPU_ISSUN4 && len <= NBPG) {
|
|
u_long pf = (u_long)(pa->rr_paddr) >> PGSHIFT;
|
|
int pgtype = PMAP_T2PTE_4(pa->rr_iospace);
|
|
u_long va, pte;
|
|
|
|
for (va = OLDMON_STARTVADDR; va < OLDMON_ENDVADDR; va += NBPG) {
|
|
pte = getpte(va);
|
|
if ((pte & PG_V) != 0 && (pte & PG_TYPE) == pgtype &&
|
|
(pte & PG_PFNUM) == pf)
|
|
return ((void *)
|
|
(va | ((u_long)pa->rr_paddr & PGOFSET)) );
|
|
/* note: preserve page offset */
|
|
}
|
|
}
|
|
|
|
return mapiodev(pa, 0, len);
|
|
}
|
|
#endif /* SUN4 */
|
|
|
|
void
|
|
obio_bus_untmp()
|
|
{
|
|
pmap_remove(pmap_kernel(), TMPMAP_VA, TMPMAP_VA+NBPG);
|
|
}
|