Hi Laurence, Thanks for the info about cache coherency issues with DAVINCI EMAC. I will make appropriate changes to commit message.
Thanks, Nag On Wed, Aug 03, 2011 at 01:07:36, Laurence Withers wrote: > On Tue, Aug 02, 2011 at 06:06:42PM +0200, Wolfgang Denk wrote: > > Dear nagabhushana.netagu...@ti.com, > > > > In message > > <1312299792-16415-2-git-send-email-nagabhushana.netagu...@ti.com> you wrote: > > > From: Nagabhushana Netagunte <nagabhushana.netagu...@ti.com> > > > > > > As per new cache management framework, if the caches are not used in > > > u-boot, it needs to be explicitly indicated through macros in config > > > file. da850 doesnt support I-CACHE, D-CACHE or L2-CACHE usage in > > > u-boot which is indicated by the following macro definitions, > > > > What exactly does this mean? Does it mean that > > > > 1) the hardware does not have working caches, so there is no chance to > > ever add such support in software? > > > > 2) the hardware does have working caches, but this current software > > support is simple / incomplete, and cache support will be added > > later? > > I am also working on a U-Boot port to a DA850-based board, and I can confirm > that both I-cache and D-cache do work correctly. However, there are cache > coherency issues when using the Ethernet driver (DaVinci EMAC). There may > also be other drivers that fail similarly. > > If driver issues are the reason for disabling the caches then the commit > message should reflect this. > > Bye for now, > -- > Laurence Withers, <lwith...@guralp.com> http://www.guralp.com/ > Direct tel:+447753988197 or tel:+443333408643 Software Engineer > General support queries: <supp...@guralp.com> CMG-DCM CMG-EAM CMG-NAM > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
