st,stm32-etzpc.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/stm32/st,stm32-etzpc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: STM32 Extended TrustZone protection controller bindings

maintainers:
  - Lionel Debieve <lionel.debieve@foss.st.com>

properties:
  compatible:
    const: "st,stm32-etzpc"

  "#address-cells":
    const: 1

  "#size-cells":
    const: 1

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  st,decprot:
    description: |
      - Define a list of peripherals with the associated configuration.
        It is defined by macros DECPROT(STM32MP1_ETZPC_XXX_ID, DECPROT_XX, DECPROT_LOCK)
        as defined by header file dt-bindings/soc/stm32mp13-etzpc.h.
      - A peripheral ID is required as in dt-bindings/soc/stm32mp13-etzpc.h for STM32MP13 and
        dt-bindings/soc/stm32mp15-etzpc.h for STM32MP15
      - Peripheral access which can be defined using following description
          DECPROT_S_RW: Secure Read/Write
          DECPROT_NS_R_S_W: Non-secure Read / Secure write
          DECPROT_MCU_ISOLATION: CoProcessor isolated
          DECPROT_NS_RW: Non-secure Read/Write
      - description: Configuration lock state (DECPROT_UNLOCK / DECPROT_LOCK)
    $ref: "/schemas/types.yaml#/definitions/uint32-array"

required:
  - compatible
  - "#address-cells"
  - "#size-cells"
  - reg
  - clocks

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/stm32mp13-clks.h>
    #include <dt-bindings/reset/stm32mp13-resets.h>
    #include <dt-bindings/soc/stm32mp13-etzpc.h>
    etzpc: etzpc@5c007000 {
      compatible = "st,stm32-etzpc";
      reg = <0x5C007000 0x400>;
      clocks = <&rcc TZPC>;
      #address-cells = <1>;
      #size-cells = <1>;
      st,decprot = <
                DECPROT(STM32MP1_ETZPC_ADC1_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
                DECPROT(STM32MP1_ETZPC_ADC2_ID, DECPROT_NS_RW, DECPROT_LOCK)
                DECPROT(STM32MP1_ETZPC_BKPSRAM_ID, DECPROT_S_RW, DECPROT_UNLOCK)
                DECPROT(STM32MP1_ETZPC_CRYP_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
                DECPROT(STM32MP1_ETZPC_DCMIPP_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
                DECPROT(STM32MP1_ETZPC_DDRCTRLPHY_ID, DECPROT_NS_R_S_W, DECPROT_UNLOCK)
                DECPROT(STM32MP1_ETZPC_ETH1_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
                DECPROT(STM32MP1_ETZPC_ETH2_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
                DECPROT(STM32MP1_ETZPC_FMC_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
      >:
    };

...