Re: An issue about sp5100 watchdog

[Guenter Roeck]

On 12/07/2015 09:42 PM, Huang Rui wrote:
> Hi all,
>
> I found an issue in some of AMD platforms about sp5100, that the MMIO
> address (0x51413120) is already used by System RAM
> (00100000-7c2befff)...
>
> [   29.928096] sp5100_tco: SP5100/SB800 TCO WatchDog Timer Driver v0.05
> [   29.928302] sp5100_tco: PCI Vendor ID: 0x1022, Device ID: 0x790b, Revision ID: 0x4a
> [   29.928319] sp5100_tco: Got 0x51413120 from indirect I/O
> [   29.928323] sp5100_tco: MMIO address 0x51413120 already in use
> [   29.928332] sp5100_tco: SBResource_MMIO is disabled(0xe000a0)
> [   29.928333] sp5100_tco: failed to find MMIO address, giving up.
If I understand the code correctly, the problem is really "SBResource_MMIO is disabled".
Presumably that is done in the BIOS. No idea if anything can be done about that.

Guenter

> 00100000-7c2befff : System RAM
>    01000000-017b1ab3 : Kernel code
>    017b1ab4-01d4ce7f : Kernel data
>    01ec4000-02008fff : Kernel bss
> 7c2bf000-7c8befff : reserved
> 7c8bf000-7cbbefff : ACPI Non-volatile Storage
>    7cbb6000-7cbb9fff : MSFT0101:00
>    7cbba000-7cbbdfff : MSFT0101:00
> 7cbbf000-7cbfefff : ACPI Tables
> 7cbff000-7cbfffff : System RAM
> 7cc00000-7effffff : reserved
>
> Any idea?
>
> Thanks,
> Rui
> --
> To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/