Add binding for CPLD bus interface of Freescale P1021RDB Combo Board CPLD Design. Signed-off-by: Marek Behún <kabel@xxxxxxxxxx> --- .../bindings/bus/fsl,p1021rdb-pc-cpld.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/fsl,p1021rdb-pc-cpld.yaml diff --git a/Documentation/devicetree/bindings/bus/fsl,p1021rdb-pc-cpld.yaml b/Documentation/devicetree/bindings/bus/fsl,p1021rdb-pc-cpld.yaml new file mode 100644 index 000000000000..822dfb93dcd8 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/fsl,p1021rdb-pc-cpld.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/fsl,p1021rdb-pc-cpld.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: CPLD Bus Inteface for Freescale P1021RDB Combo Board CPLD Design + +maintainers: + - Pali Rohár <pali@xxxxxxxxxx> + +description: | + A simple bus enabling access to peripherals on boards with use Freescale + P1021RDB Combo Board CPLD Design. + + The "fsl,p1021rdb-pc-cpld" follows the "simple-bus" set of properties, as + specified in the Devicetree Specification. It is an extension of "simple-bus" + because some registers are CPLD specific and allows to identify if board has + wired CPLD according to Freescale P1021RDB Combo Board CPLD Design. + +select: + properties: + compatible: + contains: + const: fsl,p1021rdb-pc-cpld + required: + - compatible + +properties: + $nodename: + pattern: "^cpld(@[0-9a-f]+(,[0-9a-f]+)?)?$" + + compatible: + items: + - const: fsl,p1021rdb-pc-cpld + - const: simple-bus + + '#address-cells': + enum: [ 1, 2 ] + + '#size-cells': + enum: [ 1, 2 ] + + reg: + maxItems: 1 + + ranges: true + +required: + - compatible + - '#address-cells' + - '#size-cells' + - reg + - ranges + +additionalProperties: + type: object + +examples: + - | + + localbus { + #address-cells = <2>; + #size-cells = <1>; + + cpld@3,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,p1021rdb-pc-cpld", "simple-bus"; + reg = <0x3 0x0 0x20000>; + ranges = <0x0 0x3 0x0 0x20000>; + }; + }; -- 2.35.1
