[U-Boot-Users] icache/dcache not working on PPC440

[Stefan Roese]

Hi Wolfgang,

On Friday 02 March 2007 17:54, Wolfgang Denk wrote:
> In message <200703021749.03000.sr at denx.de> you wrote:
> > As mentioned above the main problem is the EMAC driver. It has either to
> > be changed to support cache handling (invalidating/flushing) of the
> > buffer descriptors. Or we must setup one small area in the SDRAM that is
> > uncached and the driver uses this memory area for the buffer descriptors.
>
> Other drivers may make similar assumptions.

For 44x, I don't think so.

> You will have  to  run  a 
> pretty  extensive  set of regression testing (including other network
> drivers, USB, ...) when attempting to perform such a change.

Sure. This would be a major change and would need to be enabled in the board 
config file. And extensive testing of course.

Viele Grüße,
Stefan

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