qcom,smem.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: "http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#"
    5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    6 
    7 title: Qualcomm Shared Memory Manager binding
    8 
    9 maintainers:
   10   - Andy Gross <agross@kernel.org>
   11   - Bjorn Andersson <bjorn.andersson@linaro.org>
   12 
   13 description:
   14   This binding describes the Qualcomm Shared Memory Manager, a region of
   15   reserved-memory used to share data between various subsystems and OSes in
   16   Qualcomm platforms.
   17 
   18 properties:
   19   compatible:
   20     const: qcom,smem
   21 
   22   reg:
   23     maxItems: 1
   24 
   25   memory-region:
   26     maxItems: 1
   27     description: handle to memory reservation for main SMEM memory region.
   28 
   29   hwlocks:
   30     maxItems: 1
   31 
   32   qcom,rpm-msg-ram:
   33     $ref: /schemas/types.yaml#/definitions/phandle
   34     description: handle to RPM message memory resource
   35 
   36   no-map: true
   37 
   38 required:
   39   - compatible
   40   - hwlocks
   41 
   42 oneOf:
   43   - required:
   44       - reg
   45       - no-map
   46   - required:
   47       - memory-region
   48 
   49 additionalProperties: false
   50 
   51 examples:
   52   - |
   53     reserved-memory {
   54         #address-cells = <1>;
   55         #size-cells = <1>;
   56         ranges;
   57 
   58         smem@fa00000 {
   59             compatible = "qcom,smem";
   60             reg = <0xfa00000 0x200000>;
   61             no-map;
   62 
   63             hwlocks = <&tcsr_mutex 3>;
   64         };
   65     };
   66   - |
   67     reserved-memory {
   68         #address-cells = <1>;
   69         #size-cells = <1>;
   70         ranges;
   71 
   72         smem_region: smem@fa00000 {
   73             reg = <0xfa00000 0x200000>;
   74             no-map;
   75         };
   76     };
   77 
   78     smem {
   79         compatible = "qcom,smem";
   80 
   81         memory-region = <&smem_region>;
   82         qcom,rpm-msg-ram = <&rpm_msg_ram>;
   83 
   84         hwlocks = <&tcsr_mutex 3>;
   85     };
   86 
   87     soc {
   88         #address-cells = <1>;
   89         #size-cells = <1>;
   90         ranges;
   91 
   92         rpm_msg_ram: sram@fc428000 {
   93             compatible = "qcom,rpm-msg-ram";
   94             reg = <0xfc428000 0x4000>;
   95         };
   96     };
   97 
   98 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/soc/qcom/qcom,smem.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/soc/qcom/qcom,smem.yaml