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Add support for reading the SCSI ID and "fast mode enabled" from the 

PMAZB-AA and PMAZC-AA EEPROM.
This commit is contained in:
thorpej 1998-05-25 01:14:38 +00:00
parent 3b9e9634fb
commit 57c68363d6
2 changed files with 49 additions and 5 deletions
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49
sys/arch/alpha/tc/tcds.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: tcds.c,v 1.23 1998/05/24 23:41:43 thorpej Exp $ */
/* $NetBSD: tcds.c,v 1.24 1998/05/25 01:14:38 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -66,7 +66,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: tcds.c,v 1.23 1998/05/24 23:41:43 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: tcds.c,v 1.24 1998/05/25 01:14:38 thorpej Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@ -135,6 +135,7 @@ struct tcds_device {
};
struct tcds_device *tcds_lookup __P((const char *));
void tcds_params __P((struct tcds_softc *, int, int *, int *));
struct tcds_device *
tcds_lookup(modname)
@ -171,7 +172,7 @@ tcdsattach(parent, self, aux)
struct tcds_slotconfig *slotc;
struct tcds_device *td;
bus_space_handle_t sbsh[2];
int i;
int i, id, fast;
extern int cputype;
td = tcds_lookup(ta->ta_modname);
@ -187,6 +188,11 @@ tcdsattach(parent, self, aux)
sc->sc_flags = td->td_flags;
#ifndef __alpha__
if (sc->sc_flags & TCDSF_BASEBOARD)
panic("tcdsattach: baseboard TCDS on non-Alpha?!");
#endif
/*
* Map the device.
*/
@ -268,11 +274,13 @@ tcdsattach(parent, self, aux)
/* find the hardware attached to the TCDS ASIC */
for (i = 0; i < 2; i++) {
tcds_params(sc, i, &id, &fast);
tcdsdev.tcdsda_bst = sc->sc_bst;
tcdsdev.tcdsda_bsh = sbsh[i];
tcdsdev.tcdsda_chip = i;
tcdsdev.tcdsda_sc = &sc->sc_slots[i];
tcdsdev.tcdsda_id = 7; /* XXX */
tcdsdev.tcdsda_id = id; /* XXX */
tcdsdev.tcdsda_freq = 25000000; /* XXX */
if (sc->sc_flags & TCDSF_FASTSCSI)
tcdsdev.tcdsda_variant = NCR_VARIANT_NCR53C96;
@ -532,3 +540,36 @@ tcds_intr(arg)
return (1);
}
void
tcds_params(sc, chip, idp, fastp)
struct tcds_softc *sc;
int chip, *idp, *fastp;
{
u_int32_t ids;
#ifdef __alpha__
if (sc->sc_flags && TCDSF_BASEBOARD) {
/* XXX Implement me. */
*idp = 7;
*fastp = 0;
} else
#endif /* __alpha__ */
{
/*
* SCSI IDs are stored in the EEPROM, along with whether or
* not the device is "fast". Chip 0 is the high nibble,
* chip 1 the low nibble.
*/
ids = bus_space_read_4(sc->sc_bst, sc->sc_bsh, TCDS_EEPROM_IDS);
if (chip == 0)
ids >>= 4;
*idp = ids & 0x7;
*fastp = ids & 0x8;
}
if ((sc->sc_flags & TCDSF_FASTSCSI) != 0 && *fastp == 0)
printf("%s: WARNING: chip %d not in fast mode\n",
sc->sc_dv.dv_xname, chip);
}

5
sys/arch/alpha/tc/tcdsreg.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: tcdsreg.h,v 1.3 1997/04/06 22:30:43 cgd Exp $ */
/* $NetBSD: tcdsreg.h,v 1.4 1998/05/25 01:14:38 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
@ -36,6 +36,9 @@
/*
* TCDS register offsets, bit masks.
*/
#define TCDS_EEPROM 0x000000 /* EEPROM offset */
#define TCDS_EEPROM_IDS 0x000008 /* SCSI IDs offset in EEPROM */
#define TCDS_CIR 0x040000 /* CIR offset */
/*