1*4882a593Smuzhiyun# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*4882a593Smuzhiyun%YAML 1.2 3*4882a593Smuzhiyun--- 4*4882a593Smuzhiyun$id: http://devicetree.org/schemas/nvmem/st,stm32-romem.yaml# 5*4882a593Smuzhiyun$schema: http://devicetree.org/meta-schemas/core.yaml# 6*4882a593Smuzhiyun 7*4882a593Smuzhiyuntitle: STMicroelectronics STM32 Factory-programmed data bindings 8*4882a593Smuzhiyun 9*4882a593Smuzhiyundescription: | 10*4882a593Smuzhiyun This represents STM32 Factory-programmed read only non-volatile area: locked 11*4882a593Smuzhiyun flash, OTP, read-only HW regs... This contains various information such as: 12*4882a593Smuzhiyun analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2), 13*4882a593Smuzhiyun internal vref (VREFIN_CAL), unique device ID... 14*4882a593Smuzhiyun 15*4882a593Smuzhiyunmaintainers: 16*4882a593Smuzhiyun - Fabrice Gasnier <fabrice.gasnier@st.com> 17*4882a593Smuzhiyun 18*4882a593SmuzhiyunallOf: 19*4882a593Smuzhiyun - $ref: "nvmem.yaml#" 20*4882a593Smuzhiyun 21*4882a593Smuzhiyunproperties: 22*4882a593Smuzhiyun compatible: 23*4882a593Smuzhiyun enum: 24*4882a593Smuzhiyun - st,stm32f4-otp 25*4882a593Smuzhiyun - st,stm32mp15-bsec 26*4882a593Smuzhiyun 27*4882a593SmuzhiyunpatternProperties: 28*4882a593Smuzhiyun "^.*@[0-9a-f]+$": 29*4882a593Smuzhiyun type: object 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun properties: 32*4882a593Smuzhiyun st,non-secure-otp: 33*4882a593Smuzhiyun description: | 34*4882a593Smuzhiyun This property explicits a factory programmed area that both secure 35*4882a593Smuzhiyun and non-secure worlds can access. It is needed when, by default, the 36*4882a593Smuzhiyun related area can only be reached by the secure world. 37*4882a593Smuzhiyun type: boolean 38*4882a593Smuzhiyun 39*4882a593Smuzhiyunrequired: 40*4882a593Smuzhiyun - "#address-cells" 41*4882a593Smuzhiyun - "#size-cells" 42*4882a593Smuzhiyun - compatible 43*4882a593Smuzhiyun - reg 44*4882a593Smuzhiyun 45*4882a593SmuzhiyununevaluatedProperties: false 46*4882a593Smuzhiyun 47*4882a593Smuzhiyunexamples: 48*4882a593Smuzhiyun - | 49*4882a593Smuzhiyun efuse@1fff7800 { 50*4882a593Smuzhiyun compatible = "st,stm32f4-otp"; 51*4882a593Smuzhiyun reg = <0x1fff7800 0x400>; 52*4882a593Smuzhiyun #address-cells = <1>; 53*4882a593Smuzhiyun #size-cells = <1>; 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun calib@22c { 56*4882a593Smuzhiyun reg = <0x22c 0x2>; 57*4882a593Smuzhiyun }; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun mac_addr@e4 { 60*4882a593Smuzhiyun reg = <0xe4 0x8>; 61*4882a593Smuzhiyun st,non-secure-otp; 62*4882a593Smuzhiyun }; 63*4882a593Smuzhiyun }; 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun... 66