src/patches/suse-2.6.27.39/patches.drivers/libata-add-waits-for-govault

   1 From: Tejun Heo <teheo@suse.de>
   2 Date: Wed, 7 Feb 2007 12:37:41 -0800
   3 Subject: [PATCH] libata: add waits for GoVault
   4 References: 246451
   5
   6 Iomega GoVault drives need specific waits here and there.  Upstream
   7 approach hasn't been determined yet.  This is temp solution from Gary
   8 Hade.  Read the following thread for details.
   9
  10 http://thread.gmane.org/gmane.linux.ide/14545/focus=14663
  11
  12 With recent changes in the reset sequence (ATA_TMOUT_FF_WAIT and
  13 prefer-hardreset), the only thing which needs adjustment is
  14 ATA_TMOUT_FF_WAIT (the prereset wait part is unnecessary as the wait
  15 is necessary only for softreset when SCR registers are accessible and
  16 in those cases libata now always uses hardreset which doesn't require
  17 such wait).
  18
  19 Signed-off-by: Tejun Heo <teheo@suse.de>
  20 ---
  21  include/linux/libata.h |    2 +-
  22  1 file changed, 1 insertion(+), 1 deletion(-)
  23
  24 Index: linux-2.6.27/include/linux/libata.h
  25 ===================================================================
  26 --- linux-2.6.27.orig/include/linux/libata.h
  27 +++ linux-2.6.27/include/linux/libata.h
  28 @@ -250,7 +250,7 @@ enum {
  29          * HHD424020F7SV00.  Increase to 2secs when parallel probing
  30          * is in place.
  31          */
  32 -       ATA_TMOUT_FF_WAIT       =  800,
  33 +       ATA_TMOUT_FF_WAIT       =  2000,
  34
  35         /* Spec mandates to wait for ">= 2ms" before checking status
  36          * after reset.  We wait 150ms, because that was the magic