"ahci: drop intx manipulation on msi enable" breaks ULI M1575
Michael Ellerman
michael at ellerman.id.au
Thu Apr 9 09:53:13 EST 2009
On Wed, 2009-04-08 at 17:15 -0500, Timur Tabi wrote:
> On Wed, Apr 8, 2009 at 4:31 PM, Tejun Heo <tj at kernel.org> wrote:
> > Hmmm... for now,
> > I think it would be best to revert the original change. Jeff, can you
> > please do that?
>
> Actually, give me a few days before you do that. A colleague gave me
> some suggestions to debug this.
What device did you say it was? A "ULI M1575" ?
Is that this one?
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, hpcd_quirk_uli1575);
static void __devinit hpcd_quirk_uli1575(struct pci_dev *dev)
{
u32 temp32;
if (!machine_is(mpc86xx_hpcd))
return;
/* Disable INTx */
pci_read_config_dword(dev, 0x48, &temp32);
pci_write_config_dword(dev, 0x48, (temp32 | 1<<26));
..
cheers
--
Michael Ellerman
OzLabs, IBM Australia Development Lab
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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