SiS630 Software Watchdog Timer
steve at nexpath.com
Mon Mar 17 12:47:01 CET 2003
Ronald G. Minnich wrote:
> On Mon, 17 Mar 2003, Spirit wrote:
>>That shouldn't be a problem unless it takes 5 seconds to get to the
>>southbridge.c code. But of course, moving it to an earlier position is
>>a good idea.
> It really takes 5 seconds? it did not used to. I liked having it in the
> southbridge code for a simple reason: if you are in that code then things
> are working well. If you are not in that kind at some point, you really
> want that watchdog reset. It is a very simple self-test.
On PCChips m787cl+ that I have, it will definitely reset if you turn
compression on, without disabling the watchdog. I suppose it must be 5
seconds, but I did not time it. Definitely a long time.
Maybe it is related to running at 0xffff0000 instead of 0xf0000. Did we
cached that region? The mtrr code is there but I have not checked
through it to see what regions are cached.
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