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[PATCH] Old IDE, fix SATA detection for cabling 

This is based on the proposed patches flying around but also checks that
the device in question is new enough to have word 93 rather thanb blindly
assuming word 93 == 0 means SATA (see ATA-5, ATA-7)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Alan Cox 2006-06-28 04:26:58 -07:00 committed by Linus Torvalds
parent 1e866f0bf8
commit 1a1276e7b6
1 changed files with 4 additions and 0 deletions
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4
drivers/ide/ide-iops.c
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@ -597,6 +597,10 @@ u8 eighty_ninty_three (ide_drive_t *drive)
{
if(HWIF(drive)->udma_four == 0)
return 0;
/* Check for SATA but only if we are ATA5 or higher */
if (drive->id->hw_config == 0 && (drive->id->major_rev_num & 0x7FE0))
return 1;
if (!(drive->id->hw_config & 0x6000))
return 0;
#ifndef CONFIG_IDEDMA_IVB