Commit 38a85b9d authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Rob Herring
Browse files

dt-bindings: sram: qcom,imem: add IMEM memory region 



Add bindings for IMEM memory region (like SRAM) used on several
Qualcomm SoCs.  In the downstream (vendor) tree, it comes with several
children used for debugging purposes.  The upstreamed parts are much
smaller - just image loader and syscon reboot.

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220607171848.535128-2-krzysztof.kozlowski@linaro.org
parent ae5a8983

Documentation/devicetree/bindings/sram/qcom,imem.yaml

0 → 100644
+75 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/sram/qcom,imem.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Qualcomm IMEM memory region



maintainers:

  - Bjorn Andersson <bjorn.andersson@linaro.org>



description:

  Qualcomm IMEM is dedicated memory region for various debug features and DMA

  transactions.



properties:

  compatible:

    items:

      - enum:

          - qcom,apq8064-imem

          - qcom,msm8974-imem

          - qcom,qcs404-imem

          - qcom,sc7180-imem

          - qcom,sc7280-imem

          - qcom,sdm630-imem

          - qcom,sdm845-imem

          - qcom,sdx55-imem

      - const: syscon

      - const: simple-mfd



  reg:

    maxItems: 1



  ranges: true



  '#address-cells':

    const: 1



  '#size-cells':

    const: 1



  reboot-mode:

    $ref: /schemas/power/reset/syscon-reboot-mode.yaml#



patternProperties:

  "^pil-reloc@[0-9a-f]+$":

    $ref: /schemas/remoteproc/qcom,pil-info.yaml#

    description: Peripheral image loader relocation region



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    soc {

        #address-cells = <2>;

        #size-cells = <2>;



        sram@146bf000 {

            compatible = "qcom,sdm845-imem", "syscon", "simple-mfd";

            reg = <0 0x146bf000 0 0x1000>;

            ranges = <0 0 0x146bf000 0x1000>;



            #address-cells = <1>;

            #size-cells = <1>;



            pil-reloc@94c {

                compatible = "qcom,pil-reloc-info";

                reg = <0x94c 0xc8>;

            };

        };

    };