On Thu, Nov 1, 2018 at 10:12 AM Segher Boessenkool
[off-list ref] wrote:

On Thu, Nov 01, 2018 at 09:52:57PM +1100, Michael Ellerman wrote:

quoted

Rob Herring [off-list ref] writes:

quoted

Yes, I was aware at least older powerpc DTs don't use 'cpu' for node names.

Actually newer ones too, see below :)

Good, because that is required by the Open Firmware standard (the PowerPC
binding, to be exact):

http://www.openbios.org/data/docs/ppc-2_1.ps

(see 5.1.4, "name").

Yes. I should say I only expect systems following ePAPR (3.7) or DT
Spec will use 'cpu' node names. Those specs also require 'device_type'
which is supposed to indicate what OF methods are available for a node
which doesn't exist on FDT.

Rob