On Mon, Jan 15, 2018 at 6:53 AM, Greentime Hu <green...@gmail.com> wrote: > From: Greentime Hu <greent...@andestech.com> > > This patch adds nds32 CPU binding documents. > > Signed-off-by: Vincent Chen <vince...@andestech.com> > Signed-off-by: Rick Chen <r...@andestech.com> > Signed-off-by: Zong Li <z...@andestech.com> > Signed-off-by: Greentime Hu <greent...@andestech.com> > Reviewed-by: Rob Herring <r...@kernel.org> > --- > Documentation/devicetree/bindings/nds32/cpus.txt | 37 > ++++++++++++++++++++++ > 1 file changed, 37 insertions(+) > create mode 100644 Documentation/devicetree/bindings/nds32/cpus.txt > > diff --git a/Documentation/devicetree/bindings/nds32/cpus.txt > b/Documentation/devicetree/bindings/nds32/cpus.txt > new file mode 100644 > index 0000000..9a52937 > --- /dev/null > +++ b/Documentation/devicetree/bindings/nds32/cpus.txt > @@ -0,0 +1,37 @@ > +* Andestech Processor Binding > + > +This binding specifies what properties must be available in the device tree > +representation of a Andestech Processor Core, which is the root node in the > +tree. > + > +Required properties: > + > + - compatible: > + Usage: required > + Value type: <string> > + Definition: should be one of: > + "andestech,n13" > + "andestech,n15" > + "andestech,d15" > + "andestech,n10" > + "andestech,d10" > + "andestech,nds32v3"
Based on https://lkml.org/lkml/2017/11/27/1290, this should say that the device tree should always list 'andestech,nds32v3' as the most generic 'compatible' value and list exactly one of the others in addition. Arnd
