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- # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
- %YAML 1.2
- ---
- $id: http://devicetree.org/schemas/nvmem/st,stm32-romem.yaml#
- $schema: http://devicetree.org/meta-schemas/core.yaml#
- title: STMicroelectronics STM32 Factory-programmed data
- description: |
- This represents STM32 Factory-programmed read only non-volatile area: locked
- flash, OTP, read-only HW regs... This contains various information such as:
- analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2),
- internal vref (VREFIN_CAL), unique device ID...
- maintainers:
- - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
- allOf:
- - $ref: nvmem.yaml#
- - $ref: nvmem-deprecated-cells.yaml#
- properties:
- compatible:
- enum:
- - st,stm32f4-otp
- - st,stm32mp13-bsec
- - st,stm32mp15-bsec
- - st,stm32mp25-bsec
- reg:
- maxItems: 1
- patternProperties:
- "^.*@[0-9a-f]+$":
- type: object
- $ref: layouts/fixed-cell.yaml
- unevaluatedProperties: false
- properties:
- st,non-secure-otp:
- description: |
- This property explicits a factory programmed area that both secure
- and non-secure worlds can access. It is needed when, by default, the
- related area can only be reached by the secure world.
- type: boolean
- required:
- - "#address-cells"
- - "#size-cells"
- - compatible
- - reg
- unevaluatedProperties: false
- examples:
- - |
- efuse@1fff7800 {
- compatible = "st,stm32f4-otp";
- reg = <0x1fff7800 0x400>;
- #address-cells = <1>;
- #size-cells = <1>;
- calib@22c {
- reg = <0x22c 0x2>;
- };
- mac_addr@e4 {
- reg = <0xe4 0x8>;
- st,non-secure-otp;
- };
- };
- ...
|
