[U-Boot-Users] PCI MEM I/O space allocation
wd at denx.de
Tue Jan 9 16:48:38 CET 2007
In message <1168355764.2903.10.camel at localhost.localdomain> you wrote:
> > What do you mean by "change it back"?
> To allocate resources from the top.
> > When has this been changed before?
> There isn't one. I mean back to kernel's way. Why should U-boot use
> different way from kernel to allocate resources since most PCI parts are
> similar (equivalent) to kernel?
This is not a change "back" then, as we never used this setup before.
> > You are aware that you will cause LOT of regression testings with
> > such a change?
> Yes, I know. Hopefully not too much. This change will only change the
I think such a change affects about 128 boards...
*ALL* of these need thorough regression testing after such a
I wouldn't do this lightly...
> allocation direction. Once U-boot has same algorithm with kernel, it is
> easier to maintain in the future.
What exactly is the problem you're trying to fix? The fact that it's
different is IMHO not enough of a reason to change it.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Extended Epstein-Heisenberg Principle: In an R & D orbit, only 2 of
the existing 3 parameters can be defined simultaneously. The parame-
ters are: task, time and resources ($).
More information about the U-Boot