Commit 4df89cb8 authored by Beleswar Padhi's avatar Beleswar Padhi Committed by Mathieu Poirier
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dt-bindings: remoteproc: Add HSM M4F core on TI K3 SoCs 



Some of the TI K3 family of SoCs have a HSM (High Security Module) M4F
core in the Wakeup Voltage Domain which could be used to run secure
services like Authentication. Add the device tree bindings document for
this HSM M4F core.

The added example illustrates the DT node for the HSM core present on K3
J722S SoC.

Signed-off-by: default avatarBeleswar Padhi <b-padhi@ti.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260106104755.948086-2-b-padhi@ti.com


Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
parent 88c31f1b

Documentation/devicetree/bindings/remoteproc/ti,hsm-m4fss.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/remoteproc/ti,hsm-m4fss.yaml#

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



title: TI K3 HSM M4F processor subsystems



maintainers:

  - Beleswar Padhi <b-padhi@ti.com>



description: |

  Some K3 family SoCs have a HSM (High Security Module) M4F core in the

  Wakeup Voltage Domain which could be used to run secure services like

  Authentication. Some of those are J721S2, J784S4, J722S, AM62X.



$ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#



properties:

  compatible:

    enum:

      - ti,hsm-m4fss



  reg:

    items:

      - description: SRAM0_0 internal memory region

      - description: SRAM0_1 internal memory region

      - description: SRAM1 internal memory region



  reg-names:

    items:

      - const: sram0_0

      - const: sram0_1

      - const: sram1



  resets:

    maxItems: 1



  firmware-name:

    maxItems: 1



required:

  - compatible

  - reg

  - reg-names

  - resets

  - firmware-name

  - ti,sci

  - ti,sci-dev-id

  - ti,sci-proc-ids



unevaluatedProperties: false



examples:

  - |

    soc {

        #address-cells = <2>;

        #size-cells = <2>;



        remoteproc@43c00000 {

            compatible = "ti,hsm-m4fss";

            reg = <0x00 0x43c00000 0x00 0x20000>,

                  <0x00 0x43c20000 0x00 0x10000>,

                  <0x00 0x43c30000 0x00 0x10000>;

            reg-names = "sram0_0", "sram0_1", "sram1";

            resets = <&k3_reset 225 1>;

            firmware-name = "hsm.bin";

            ti,sci = <&sms>;

            ti,sci-dev-id = <225>;

            ti,sci-proc-ids = <0x80 0xff>;

        };

    };