I got the following answer, so I'll go ahead and enable CESA for Kirkwood. * Sebastian Andrzej Siewior <[email protected]> [2009-10-26 22:53]: > * Martin Michlmayr | 2009-10-26 18:26:08 [+0800]: > > >Hi Sebastian and Nico, > Hi Martin, > > >I put Sebastian's CESA driver into Debian's 2.6.31 kernel and enabled > >it for orion5x. A Debian user asked me why I didn't enable it for > >Kirkwood. AFAIK, there are some differences between the CESA on > >Orion5x and Kirkwood, so my assumption was that the current CESA > >driver doesn't work on Kirkwood. But I'm actually not sure if this is > >true. > > > >Do you know if the current driver will work on Kirkwood? > I don't really know. I just looked through the spec and compared them > and they look very alike: > - Orion's has larger sram space. The driver does not assume, it uses the > size specified and Kirkwood's is set to 2KiB > - the register seem to be at the same spot. Orion has two engines, > Kirkwood just one. Right now, only the first one is used. > - security engine's descriptor looks the same > - the DMA engine differs in a few spot but it is not yet implemented so > it doesn't matter. > > As far as I can see in current git, Nico enabled the CESA engine on > Kirkwood [0]. It looks like he assumes that it should work, I don't know > if he ever has tested it :) > > [0] > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ae5c8c83735f5fcb09b380944e4854a383006998 > Sebastian
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