Document nexus nodes/specifier remapping
Document nexus nodes/specifier remapping

Document the generic nexus node properties. This can be used by
any specifier that conforms to #<specifier>-cells where they
want to support remapping phandle lists through nexus nodes. This
is similar to interrupt remapping, but slightly different because
we don't consider unit addresses when doing mappings. This is
mostly a copy/paste of the interrupt specification, with the unit
address parts removed and generalized to any specifier. There's
also the addition of a pass through mechanism to make things more
compact if desired in the mapping table.

Signed-off-by: Stephen Boyd <6d664ab3dfbd5458b87a27f8fa9cdab38739b6b8@linaro.org>
Signed-off-by: Rob Herring <fbb37eacae100e13076d5c4b46f06cfa4d6fa9f8@kernel.org>

devicetree-org/devicetree-specification