S4882 support

[Eric W. Biederman]

YhLu <YhLu at tyan.com> writes:

> Eric,
> 
> The ht reset in auto.c seems not thoroughly.
> 
> And it will stuck at hard_reset in amdk8_scan_chains. ( at this time can not
> access 8111 yet).

Correct.  The early hypertransport initialization code is not
complete in the 4P case.  That incompleteness triggers the later
fixups.

I could not test that case, and there were at least some small
difficulties in that it was not obvious how the 4P case should
be extended to work properly.

Why you are getting stuck in amdk8_scan_chains I do not currently
understand yet.  I suspect Stefan's suggestion of a delayed reset
is the appropriate course to implement.

Eric