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    SubjectRe: [git patches] libata updates for 3.3
    On Mon, Jan 16, 2012 at 04:02:31PM -0800, Linus Torvalds wrote:
    > On Mon, Jan 16, 2012 at 3:54 PM, Alan Cox <> wrote:
    > >> Part of the problem with force-enable is that the MMIO BAR may need a
    > >> value, and not have it.  That, and an expectations mismatch between BIOS
    > >
    > > That's fine - we can happily assign one at boot time.
    > Actually, I think the reason that Matthews patch doesn't work for me
    > is that on my device, BAR #5 really is a _port_ BAR.
    > I didn't play with it much - busy merging and looking at various other
    > issues - but I'm starting to wonder whether maybe that 8086:1c01 chip
    > doesn't support AHCI at all. Or maybe it does something differently.
    > Other reports of this have BAR#5 either clear, or an MMIO BAR. That
    > Region 5: I/O ports at ffe0 [size=16]
    > looks really odd. Matthew's patch uses
    > pci_assign_resource(pdev, 5);
    > but if it is a PIO region, that won't help anything..

    More recent ICHs may need different setup here. The datasheet should
    have enough to figure it out, but I can take a look once I get back from

    Matthew Garrett |
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