| # 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 bindings |
| |
| 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: |
| - $ref: "nvmem.yaml#" |
| |
| properties: |
| compatible: |
| enum: |
| - st,stm32f4-otp |
| - st,stm32mp15-bsec |
| |
| reg: |
| maxItems: 1 |
| |
| patternProperties: |
| "^.*@[0-9a-f]+$": |
| type: object |
| |
| 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; |
| }; |
| }; |
| |
| ... |
