On 29/03/17 15:56, Mike Leach wrote:

[...]

No - EDPRCR_COREPURQ and EDPRCR_CORENPDRQ have different semantics and purposes

EDPRCR_COREPURQ is in the debug power domain an is tied to an external
debug request that should be an input to the external (to the PE)
system power controller.
The requirement is that the system power controller powers up the core
domain and does not power it down while it remains asserted.

EDPRCR_CORENPDRQ is in the core power domain and thus to the specific
core only. This ensures that any power control software running on
that core should emulate a power down if this is set to one.

We cannot know the power control design of the system, so the safe
solution is to set both bits.

+1

I agree that's the safe bet.

-- 
Regards,
Sudeep