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From: Alexander Motin <mav@FreeBSD.org>
Date: Tue, 23 Nov 2010 21:40:21 +0000 (UTC)
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Subject: svn commit: r215776 - stable/8/sys/dev/ata
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Author: mav
Date: Tue Nov 23 21:40:21 2010
New Revision: 215776
URL: http://svn.freebsd.org/changeset/base/215776

Log:
  MFC r215453:
  Even if we are skipping SATA hard reset - set power management bits in
  SControl register. This should make things more consistent.

Modified:
  stable/8/sys/dev/ata/ata-sata.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)

Modified: stable/8/sys/dev/ata/ata-sata.c
==============================================================================
--- stable/8/sys/dev/ata/ata-sata.c	Tue Nov 23 21:36:56 2010	(r215775)
+++ stable/8/sys/dev/ata/ata-sata.c	Tue Nov 23 21:40:21 2010	(r215776)
@@ -153,8 +153,12 @@ ata_sata_phy_reset(device_t dev, int por
     if (quick) {
 	if (ata_sata_scr_read(ch, port, ATA_SCONTROL, &val))
 	    return (0);
-	if ((val & ATA_SC_DET_MASK) == ATA_SC_DET_IDLE)
+	if ((val & ATA_SC_DET_MASK) == ATA_SC_DET_IDLE) {
+	    ata_sata_scr_write(ch, port, ATA_SCONTROL,
+		ATA_SC_DET_IDLE | ((ch->pm_level > 0) ? 0 :
+		ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER));
 	    return ata_sata_connect(ch, port, quick);
+	}
     }
 
     if (bootverbose) {