[U-Boot-Users] PCI Bridge on 8272ADS
Vitaly Bordug
vbordug at ru.mvista.com
Mon Apr 4 20:03:36 CEST 2005
Hi Wolfgang,
I have a small question - do you have any comments/objection on adding
support for PCI bridge of 8272ADS to the CVS?
It turned out now, that this can solve amount of problems concerning too
slow board startup
(http://ozlabs.org/pipermail/linuxppc-embedded/2005-March/017447.html) .
In short, some PCI cards need the udelay up to (1000000) after
deassertion of RST#, which is... slow, at least.
While doing all necessary init in the firmware, enough time will almost
surely be spent after clearing RST, so that resetting and delay can be
eliminated from the kernel code.
--
Sincerely,
Vitaly
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