diff options
| -rw-r--r-- | sys/dev/ic/ncr53c9x.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sys/dev/ic/ncr53c9x.c b/sys/dev/ic/ncr53c9x.c index 6744be1db24..4d0d5f3d921 100644 --- a/sys/dev/ic/ncr53c9x.c +++ b/sys/dev/ic/ncr53c9x.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ncr53c9x.c,v 1.28 2006/01/09 23:09:41 brad Exp $ */ +/* $OpenBSD: ncr53c9x.c,v 1.29 2006/01/09 23:11:49 miod Exp $ */ /* $NetBSD: ncr53c9x.c,v 1.56 2000/11/30 14:41:46 thorpej Exp $ */ /* @@ -442,6 +442,20 @@ ncr53c9x_init(sc, doreset) if (doreset) { sc->sc_state = NCR_SBR; NCRCMD(sc, NCRCMD_RSTSCSI); + /* + * XXX gross... + * On some systems, commands issued too close to a reset + * do not work correctly. We'll force a short delay on + * known-to-be-sensitive chips. + */ + switch (sc->sc_rev) { + case NCR_VARIANT_NCR53C94: + DELAY(600000); /* 600ms */ + break; + case NCR_VARIANT_NCR53C96: + DELAY(100000); /* 100ms */ + break; + } } else { sc->sc_state = NCR_IDLE; ncr53c9x_sched(sc); |