In message <[EMAIL PROTECTED]> you wrote: > > > On which processors did you test the changes? I have some unclear > > memories of dcbf having problems on for example MPC8xx ? > > on 83xx parts. > I remember the 601 processor not support the dcbf.
OK, so cannot use the patch you suggested. > > > We have two options: > > > > > > 1. Separate functions for them like linux kernel. > > > A. clean dcache (dcbst) for DMA_TO_DEVICE > > > B. invalidate dcache (dcbi) for DMA_FROM_DEVICE > > > C. flush dcache (dcbf) for DMA_BIDIRECTIONAL. > > > 2. Make current flush_cache stronger semanctic. > > > use the dcbf instead of dcbst. > > > > > > Which one is better? or you have better option? > > > Please suggest. > > > > We discussed this a bit on IRC; Kumar suggested to go for 1., and I > > agree. > > Where is the IRC? Could you point it to me? That's #u-boot at irc.freenode.org Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [EMAIL PROTECTED] "We don't have to protect the environment -- the Second Coming is at hand." - James Watt ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
