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- If x86, trust the nvram and elminate long probe delays.

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- Update for amd64.
This commit is contained in:
ad 2008-04-30 23:02:43 +00:00
parent ac118e2286
commit 39f45b13ce
1 changed files with 27 additions and 27 deletions
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54
sys/dev/isa/fd.c
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@ -1,7 +1,7 @@
/* $NetBSD: fd.c,v 1.85 2008/04/28 20:23:52 martin Exp $ */
/* $NetBSD: fd.c,v 1.86 2008/04/30 23:02:43 ad Exp $ */
/*-
* Copyright (c) 1998, 2003 The NetBSD Foundation, Inc.
* Copyright (c) 1998, 2003, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -81,7 +81,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: fd.c,v 1.85 2008/04/28 20:23:52 martin Exp $");
__KERNEL_RCSID(0, "$NetBSD: fd.c,v 1.86 2008/04/30 23:02:43 ad Exp $");
#include "rnd.h"
#include "opt_ddb.h"
@ -149,17 +149,19 @@ __KERNEL_RCSID(0, "$NetBSD: fd.c,v 1.85 2008/04/28 20:23:52 martin Exp $");
#include <dev/isa/fdreg.h>
#include <dev/isa/fdcvar.h>
#if defined(i386)
#if defined(i386) || defined(x86_64)
#include <dev/ic/mc146818reg.h> /* for NVRAM access */
#include <i386/isa/nvram.h>
#if defined(i386)
#include "mca.h"
#if NMCA > 0
#include <machine/mca_machdep.h> /* for MCA_system */
#endif
#endif
#endif /* i386 */
#endif /* i386 || x86_64 */
#include <dev/isa/fdvar.h>
@ -241,9 +243,9 @@ void fdstart(struct fd_softc *);
struct dkdriver fddkdriver = { fdstrategy, NULL };
#if defined(i386)
#if defined(i386) || defined(x86_64)
const struct fd_type *fd_nvtotype(const char *, int, int);
#endif /* i386 */
#endif /* i386 || x86_64 */
void fd_set_motor(struct fdc_softc *fdc, int reset);
void fd_motor_off(void *arg);
void fd_motor_on(void *arg);
@ -387,9 +389,6 @@ fdcfinishattach(device_t self)
bus_space_tag_t iot = fdc->sc_iot;
bus_space_handle_t ioh = fdc->sc_ioh;
struct fdc_attach_args fa;
#if defined(i386)
int type;
#endif
/*
* Reset the controller to get it into a known state. Not all
@ -409,17 +408,25 @@ fdcfinishattach(device_t self)
out_fdc(iot, ioh, 0xdf);
out_fdc(iot, ioh, 2);
#if defined(i386)
#if defined(i386) || defined(x86_64)
/*
* The NVRAM info only tells us about the first two disks on the
* `primary' floppy controller.
*/
/* XXX device_unit() abuse */
if (device_unit(fdc->sc_dev) == 0)
type = mc146818_read(NULL, NVRAM_DISKETTE); /* XXX softc */
else
type = -1;
#endif /* i386 */
if (device_unit(fdc->sc_dev) == 0) {
int type = mc146818_read(NULL, NVRAM_DISKETTE); /* XXX softc */
fdc->sc_known = 1;
fdc->sc_knownfds[0] = fd_nvtotype(device_xname(fdc->sc_dev),
type, 0);
if (fdc->sc_knownfds[0] != NULL)
fdc->sc_present |= 1;
fdc->sc_knownfds[1] = fd_nvtotype(device_xname(fdc->sc_dev),
type, 1);
if (fdc->sc_knownfds[1] != NULL)
fdc->sc_present |= 2;
}
#endif /* i386 || x86_64 */
/* physical limit: four drives per controller. */
fdc->sc_state = PROBING;
@ -431,14 +438,7 @@ fdcfinishattach(device_t self)
fdprint);
}
} else {
#if defined(i386)
if (type >= 0 && fa.fa_drive < 2)
fa.fa_deftype =
fd_nvtotype(device_xname(fdc->sc_dev),
type, fa.fa_drive);
else
fa.fa_deftype = NULL; /* unknown */
#elif defined(atari)
#if defined(atari)
/*
* Atari has a different ordening, defaults to 1.44
*/
@ -449,7 +449,7 @@ fdcfinishattach(device_t self)
* on these platforms?
*/
fa.fa_deftype = &fd_types[0];
#endif /* i386 */
#endif
(void)config_found_ia(fdc->sc_dev, "fdc", (void *)&fa, fdprint);
}
}
@ -624,7 +624,7 @@ fddetach(device_t self, int flags)
return 0;
}
#if defined(i386)
#if defined(i386) || defined(x86_64)
/*
* Translate nvram type into internal data structure. Return NULL for
* none/unknown/unusable.
@ -665,7 +665,7 @@ fd_nvtotype(const char *fdc, int nvraminfo, int drive)
return NULL;
}
}
#endif /* i386 */
#endif /* i386 || x86_64 */
static const struct fd_type *
fd_dev_to_type(struct fd_softc *fd, dev_t dev)