On Fri, Jun 21, 2013 at 08:46:47PM +0200, Jeroen Hofstee wrote: > Hello Wolfgang, > > On 06/21/2013 07:33 AM, Wolfgang Denk wrote: > >We observed the very same issue with the verry first prototype > >implementation of Falcon mode on an AM3517 based board. [..] > For the am3517 the only thing needed is to add SRAM > to the known memory. See [1], that should change the > cache misses (which likely cause the extra delays) to > actual caches. U-boot only adds the detected memory > and since U-boot is running from DRAM and SPL is not, > the difference seems obvious.
This would be my guess as folks have done functional but not mainlineable changes in this direction, as well as DMA, before. -- Tom
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