On Mon, Dec 07, 2015 at 11:03:31PM -0800, Guenter Roeck wrote: > 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. > Thank you. Compared with correct message: 00100000-3e4befff : System RAM 01000000-017b1ab3 : Kernel code 017b1ab4-01d4ce7f : Kernel data 01ec4000-02008fff : Kernel bss 3e4bf000-3e8befff : reserved 3e8bf000-3ebbefff : ACPI Non-volatile Storage 3ebqbf000-3ebfefff : ACPI Tables 3ebff000-3ebfffff : System RAM 3ec00000-7effffff : reserved 51413120-51413127 : SB800 TCO <- here 7f000000-f7ffffff : PCI Bus 0000:00 SB800 TCO area is reserved. Then it doesn't find MMIO address from SBResource_MMIO register... Thanks, Rui > 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-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
