[U-Boot-Users] PCI MEM I/O space allocation

Wolfgang Denk 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
significant change.

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.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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