Re: [PATCH] PCI: loongson: Add quirk for OHCI device rev 0x02

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Hi, Krzysztof,

On Fri, Mar 14, 2025 at 3:53 PM Krzysztof Wilczyński <kw@xxxxxxxxx> wrote:
>
> Hello,
>
> > The OHCI controller (rev 0x02) under LS7A PCI host has a hardware flaw.
> > MMIO register with offset 0x60/0x64 is treated as legacy PS2-compatible
> > keyboard/mouse interface, which confuse the OHCI controller. Since OHCI
> > only use a 4KB BAR resource indeed, the LS7A OHCI controller's 32KB BAR
> > is wrapped around (the second 4KB BAR space is the same as the first 4KB
> > internally). So we can add an 4KB offset (0x1000) to the BAR resource as
> > a workaround.
>
> Applied to controller/loongson, thank you!
I'm sorry but since Bjorn has some questions, and I need some time to
investigate, please drop it at present. Thanks.

Huacai

>
>         Krzysztof





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