Messages in this thread | | | Date | Tue, 2 Jan 2007 23:27:06 +0000 | From | Alan <> | Subject | Re: [PATCH] libata: fix combined mode (was Re: Happy New Year (and v2.6.20-rc3 released)) |
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> 2.6.0 - 2.6.19: libata guarantees that all PCI BARs are reserved to the > libata driver.
Please read the code Jeff. The old IDE quirk code in the PCI layer blanked BAR 0 to BAR 3 of a compatibility mode controller
You then request_region 0x1f0 and 0x170 (BAR 0 and BAR 2) directly. You never request the legacy BAR 1 and BAR 3 because they were erased by the PCI quirk code and thus never claim the other port. Thats been a bug since day one but it never seemed worth fixing in the short term.
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