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    Subject[047/101] ahci: Enable SB600 64bit DMA on Asus M3A
    2.6.33-longterm review patch.  If anyone has any objections, please let us know.

    ------------------

    From: Mark Nelson <mdnelson8@gmail.com>

    commit 3c4aa91f21f65b7b40bdfb015eacbcb8453ccae2 upstream.

    Like e65cc194f7628ecaa02462f22f42fb09b50dcd49 this patch enables 64bit DMA
    for the AHCI SATA controller of a board that has the SB600 southbridge. In
    this case though we're enabling 64bit DMA for the Asus M3A motherboard. It
    is a new enough board that all of the BIOS releases since the initial
    release (0301 from 2007-10-22) work correctly with 64bit DMA enabled.

    Signed-off-by: Mark Nelson <mdnelson8@gmail.com>
    Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    drivers/ata/ahci.c | 12 ++++++++++++
    1 file changed, 12 insertions(+)

    --- a/drivers/ata/ahci.c
    +++ b/drivers/ata/ahci.c
    @@ -2769,6 +2769,18 @@ static bool ahci_sb600_enable_64bit(stru
    DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
    },
    },
    + /*
    + * All BIOS versions for the Asus M3A support 64bit DMA.
    + * (all release versions from 0301 to 1206 were tested)
    + */
    + {
    + .ident = "ASUS M3A",
    + .matches = {
    + DMI_MATCH(DMI_BOARD_VENDOR,
    + "ASUSTeK Computer INC."),
    + DMI_MATCH(DMI_BOARD_NAME, "M3A"),
    + },
    + },
    { }
    };
    const struct dmi_system_id *match;



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