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

Wolfgang Denk wd at denx.de
Fri Mar 2 17:54:05 CET 2007

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

Best regards,

Wolfgang Denk

DENX Software Engineering GmbH, HRB 165235 Munich, CEO: Wolfgang Denk
Office:  Kirchenstr. 5,       D-82194 Groebenzell,            Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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