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From: "Grosen, Mark" <mgrosen@ti.com>
To: "Nori, Sekhar" <nsekhar@ti.com>, Sergei Shtylyov <sshtylyov@mvista.com>
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Subject: RE: [RFC 5/8] remoteproc: add davinci implementation
Thread-Topic: [RFC 5/8] remoteproc: add davinci implementation
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Date: Tue, 5 Jul 2011 16:54:21 +0000
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> From: Nori, Sekhar
> Sent: Monday, July 04, 2011 10:35 PM
> To: Grosen, Mark; Sergei Shtylyov

...
> > > Since procedure to set the boot address varies across DaVinci
> > > platforms, you could have a callback populated in platform data
> > > which will be implemented differently for original DaVinci and
> > > DA8xx devices.
> >
> > I looked at DM6467 and it's the same as OMAPL13x, except at a
> different
> > address. Rather than a callback, it could be just an address in the
> > platform data.
> 
> Sounds okay as long as _all_ the DaVinci devices have the same
> bit to be set. Plus, I hope there are no other users of the
> register so that there is no race with other platform code using
> the same register.

Sekhar,

The register is a dedicated 32-bit register that holds the start/boot
address for the DSP, so no other platform code should be using it. Once
the LRST is de-asserted (via the PSC code enhancement), the DSP starts
execution at the address in this register.

Thanks,

Mark