Bug#552270: Marvell CESA driver and Kirkwood
Thanks Martin.
Am Dienstag, 27. Oktober 2009 14:16:04 schrieb Martin Michlmayr:
> I got the following answer, so I'll go ahead and enable CESA for
> Kirkwood.
>
> * Sebastian Andrzej Siewior <sebastian@breakpoint.cc> [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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