On May 6, 3:31 pm, Vladimir Vassilevsky <antispam_bo...@hotmail.com> wrote:> rajesh wrote: > > "BlackFin doesn't have any means for providing cache and DMA > > coherency. > > Hence you generally can't DMA to the memory areas which are covered by > > cache. " > > > who said this? > > Hint: cache snooping > > Go learn hardware, bad pupil. > > VLVrefer http://docs.blackfin.uclinux.org/doku.php?id=2d-dma
Weird Behaviour of Blackfin BF533 cache !!!!!!!!!!!!!!
Started by ●May 5, 2008
Reply by ●May 6, 20082008-05-06
Reply by ●May 6, 20082008-05-06
rajesh wrote:> refer > > http://docs.blackfin.uclinux.org/doku.php?id=2d-dmaNothing to look at. Linuxopathological gibberish. VLV
Reply by ●May 6, 20082008-05-06
On May 6, 3:51 pm, Vladimir Vassilevsky <antispam_bo...@hotmail.com> wrote:> rajesh wrote: > > refer > > >http://docs.blackfin.uclinux.org/doku.php?id=2d-dma > > Nothing to look at. Linuxopathological gibberish. > > VLVOk let me make it clear. there is 64 K sram for data and 64k sram 64k sram is divided into two banks A and B of 32k each. I have configured 16k from each bank as cache. the remaining 16 k from each bank, i am using for my dma. the was the case in which the above experiment was conducted.