Qualcomm ramoops minidump logger provide a means of storing the ramoops data to some dynamically reserved memory instead of traditionally implemented ramoops where the region should be statically fixed ram region. Add qcom,ramoops-minidump binding under "/reserved-memory", and is named "qcom,ramoops-minidump" and the reason of naming like this is because as it is going to contain ramoops frontend data and this content will be collected via Qualcomm minidump infrastructure provided from the boot firmware. Signed-off-by: Mukesh Ojha <quic_mojha@xxxxxxxxxxx> --- .../reserved-memory/qcom,ramoops-minidump.yaml | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/reserved-memory/qcom,ramoops-minidump.yaml diff --git a/Documentation/devicetree/bindings/reserved-memory/qcom,ramoops-minidump.yaml b/Documentation/devicetree/bindings/reserved-memory/qcom,ramoops-minidump.yaml new file mode 100644 index 0000000..a308db0 --- /dev/null +++ b/Documentation/devicetree/bindings/reserved-memory/qcom,ramoops-minidump.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/reserved-memory/qcom,ramoops-minidump.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Qualcomm Ramoops minidump logger + +description: | + Qualcomm ramoops minidump logger provide a means of storing the ramoops data + to some dynamically reserved memory instead of traditionally implemented + ramoops where the region should be statically fixed ram region. + + This is a child-node of "/reserved-memory", and is named "qcom_ramoops_md_region" + and the reason of naming like this is because as it is going to contain ramoops + frontend data and this content will be collected via Qualcomm minidump + infrastructure provided from the boot firmware. + +maintainers: + - Mukesh Ojha <quic_mojha@xxxxxxxxxxx> + +allOf: + - $ref: "reserved-memory.yaml" + +properties: + compatible: + items: + - enum: + - qcom,sm8450-ramoops-minidump + - const: qcom,ramoops-minidump + + memory-region: + maxItems: 1 + items: + - description: handle to memory reservation for qcom,ramoops-minidump region. + + no-map: true + +unevaluatedProperties: false + +required: + - compatible + - memory-region + +examples: + - | + / { + compatible = "foo"; + model = "foo"; + #address-cells = <2>; + #size-cells = <2>; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + qcom_ramoops_md_region@qcom_ramoops_md { + alloc-ranges = <0x0 0x00000000 0xffffffff 0xffffffff>; + size = <0x0 0x200000>; + no-map + }; + }; + + qcom_ramoops_md { + compatible = "qcom,sm8450-ramoops-minidump", "qcom,ramoops-minidump"; + memory-region = <&qcom_ramoops_md_region>; + }; + }; -- 2.7.4
