Re: IO port conflict between timer & watchdog on PCISA-C800EV board?

From: Ondrej Zary
Date: Mon Feb 07 2005 - 12:58:07 EST


Randy.Dunlap wrote:
[...]
/proc/ioports timer assignments have now been split up like this:
0040-0043 : timer0
0050-0053 : timer1

However, port 0x43 is still assigned to timer0, so your request_region
call will still fail. What system board timer resource assignments
should be used for that VIA chipset? If the chipset timer only needs
0x40-0x42, e.g., leaving 0x43 available, then it would be possible
to do some kind of workaround (maybe not real clean, but possible).

The timer uses ports 0x40-0x43. However, port 0x43 is defined as WO (write-only) - it's timer command register.

--
Ondrej Zary
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