# 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>;
        };
    };