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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2005-06-28 00:24:25 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-28 02:36:40 +0200 |
| commit | 68ad9910b0525d0194f9c316c7cb14adbf8e0c0c (patch) | |
| tree | 9d853ef1fdbced01c14749dadffe533c75745df6 /drivers/ide/ide-iops.c | |
| parent | [PATCH] ide: samsung SN-124 works perfectly well with DMA (diff) | |
| download | linux-68ad9910b0525d0194f9c316c7cb14adbf8e0c0c.tar.xz linux-68ad9910b0525d0194f9c316c7cb14adbf8e0c0c.zip | |
[PATCH] ide: IDE timing violation on reset
Pretty much theoretical for non MMIO thankfully. We _must_ use OUTBSYNC for
commands or they may be posted and thus ruin the 400nS required delay.
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/ide/ide-iops.c')
| -rw-r--r-- | drivers/ide/ide-iops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 53024942a7eb..b443b04a4c5a 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -1181,7 +1181,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) pre_reset(drive); SELECT_DRIVE(drive); udelay (20); - hwif->OUTB(WIN_SRST, IDE_COMMAND_REG); + hwif->OUTBSYNC(drive, WIN_SRST, IDE_COMMAND_REG); + ndelay(400); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; hwgroup->polling = 1; __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL); |