Add DT binding documentation used by StarFive's Starlink-500 cache controller. Signed-off-by: Joshua Yeong <joshua.yeong@xxxxxxxxxxxxxxxx> --- .../cache/starfive,starlink-500-cache.yaml | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/cache/starfive,starlink-500-cache.yaml diff --git a/Documentation/devicetree/bindings/cache/starfive,starlink-500-cache.yaml b/Documentation/devicetree/bindings/cache/starfive,starlink-500-cache.yaml new file mode 100644 index 000000000000..97ddf7db39e9 --- /dev/null +++ b/Documentation/devicetree/bindings/cache/starfive,starlink-500-cache.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/cache/starfive,starlink-500-cache.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive StarLink-500 Cache Controller + +maintainers: + - Joshua Yeong <joshua.yeong@xxxxxxxxxxxxxxxx> + +description: + StarFive's StarLink-500 controller manages cache shared between clusters of + CPU cores. The cache driver provides mechanism to perform invalidate and write + back functionality to the shared memory. + +allOf: + - $ref: /schemas/cache-controller.yaml# + +# We need a select here so we don't match all nodes with 'cache' +select: + properties: + compatible: + contains: + enum: + - starfive,starlink-500-cache + + required: + - compatible + +properties: + compatible: + items: + - const: starfive,starlink-500-cache + - const: cache + + reg: + maxItems: 1 + + cache-size: true + cache-sets: true + cache-block-size: true + cache-level: true + cache-unified: true + +additionalProperties: false + +required: + - compatible + - reg + +examples: + - | + cache-controller@15000000 { + compatible = "starfive,starlink-500-cache", "cache"; + reg = <0x15000000 0x278>; + cache-block-size = <64>; + cache-level = <3>; + cache-sets = <8192>; + cache-size = <0x400000>; + cache-unified; + }; -- 2.25.1
