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[PATCH] libata: PHY reset requires writing 0x4 to SControl

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Hi,

Reading the Intel VSC and AHCI it seems like writing 0x302 is incorrect.
The only valid values are 4, 1 and 0.  Writing 4 disables the
PHY.

Signed-off-by: Martin Hicks <mort@bork.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Martin Hicks 2006-07-05 15:06:13 -04:00 committed by Jeff Garzik
parent 51704c609f
commit a34b6fc04d
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/libata-core.c
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@ -2746,7 +2746,7 @@ int sata_std_hardreset(struct ata_port *ap, unsigned int *class)
if ((rc = sata_scr_read(ap, SCR_CONTROL, &scontrol)))
return rc;
scontrol = (scontrol & 0x0f0) | 0x302;
scontrol = (scontrol & 0x0f0) | 0x304;
if ((rc = sata_scr_write(ap, SCR_CONTROL, scontrol)))
return rc;