Re: netbsd-5 system hangs while booting since recent kernel update

[Matthias Drochner <M.Drochner%fz-juelich.de@localhost>]

j+nbsd%2010.salmi.ch@localhost said:
> I'm not familiar with the code; what might be the problem with it?

A PCI device driver should never touch the PCI_COMMAND_IO_ENABLE
and PCI_COMMAND_MEM_ENABLE bits in PCI_COMMAND_STATUS_REG.

>   auich0: can't map codec i/o space

If the IO space is not enabled this is for a reason which is
outside the reach of the driver. Either is is impossible due to
address space shortage, or a lazy BIOS didn't care to map it.
For the latter case we have these *FIXUP* options.
If the BIOS didn't map the range, chances are high that the
base address register is still zero; enabling IO access will
immediately cause a decoding conflict at low addresses where
the standard ISA components are mapped.

This change is wrong and should be backed out.

best regards
Matthias



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