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  • Bartlomiej Zolnierkiewicz's avatar
    ide: add short cables support · 49521f97
    Bartlomiej Zolnierkiewicz authored
    This patch allows users to override both host and device side cable detection
    with "ideX=ata66" kernel parameter.  Thanks to this it should be now possible
    to use UDMA > 2 modes on systems (laptops mainly) which use short 40-pin cable
    instead of 80-pin one.
    Next patches add automatic detection of some systems using short cables.
    * Rename hwif->udma_four to hwif->cbl and make it u8.
    * Convert all existing users accordingly (use ATA_CBL_* defines while at it).  
    * Add ATA_CBL_PATA40_SHORT support to ide-iops.c:eighty_ninty_three().
    * Use ATA_CBL_PATA40_SHORT for "ideX=ata66" kernel parameter.
    Signed-off-by: default avatarBartlomiej Zolnierkiewicz <>
    Reviewed-by: default avatarSergei Shtylyov <>