On 03/30/2020 02:42 PM, Jiaxun Yang wrote: > PCI host controller found on Loongson PCHs and SoCs. > > Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> > --- > .../devicetree/bindings/pci/loongson.yaml | 52 +++++++++++++++++++ > 1 file changed, 52 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pci/loongson.yaml > > diff --git a/Documentation/devicetree/bindings/pci/loongson.yaml b/Documentation/devicetree/bindings/pci/loongson.yaml > new file mode 100644 > index 000000000000..623847980189 > --- /dev/null > +++ b/Documentation/devicetree/bindings/pci/loongson.yaml > @@ -0,0 +1,52 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/pci/loongson.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Loongson PCI Host Controller > + > +maintainers: > + - Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> > + > +description: |+ > + PCI host controller found on Loongson PCHs and SoCs. > + > +allOf: > + - $ref: /schemas/pci/pci-bus.yaml# > + > +properties: > + compatible: > + oneOf: > + - const: loongson,rs780e-pci > + - const: loongson,ls7a-pci > + - const: loongson,ls2k-pci > + > + reg: > + minItems: 1 > + maxItems: 2 > + items: > + - description: CFG0 standard config space register > + - description: CFG1 extend config space register Extended? > + > + ranges: > + maxItems: 3 > + > + > +required: > + - compatible > + - reg > + - ranges > + > +examples: > + - | > + pci@1a000000 { > + compatible = "loongson,rs780e-pci"; > + device_type = "pci"; > + #address-cells = <3>; > + #size-cells = <2>; > + > + reg = <0x1a000000 0x2000000>; > + ranges = <0x02000000 0 0x40000000 0x40000000 0 0x40000000>; > + }; > +... MBR, Sergei
