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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/imx-ocotp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings
+
+maintainers:
+ - Anson Huang <Anson.Huang@nxp.com>
+
+description: |
+ This binding represents the on-chip eFuse OTP controller found on
+ i.MX6Q/D, i.MX6DL/S, i.MX6SL, i.MX6SX, i.MX6UL, i.MX6ULL/ULZ, i.MX6SLL,
+ i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.
+
+allOf:
+ - $ref: "nvmem.yaml#"
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,imx6q-ocotp
+ - fsl,imx6sl-ocotp
+ - fsl,imx6sx-ocotp
+ - fsl,imx6ul-ocotp
+ - fsl,imx6ull-ocotp
+ - fsl,imx7d-ocotp
+ - fsl,imx6sll-ocotp
+ - fsl,imx7ulp-ocotp
+ - fsl,imx8mq-ocotp
+ - fsl,imx8mm-ocotp
+ - const: syscon
+ - items:
+ - enum:
+ - fsl,imx8mn-ocotp
+ # i.MX8MP not really compatible with fsl,imx8mm-ocotp, however
+ # the code for getting SoC revision depends on fsl,imx8mm-ocotp
+ # compatible.
+ - fsl,imx8mp-ocotp
+ - const: fsl,imx8mm-ocotp
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - "#address-cells"
+ - "#size-cells"
+ - compatible
+ - reg
+
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ type: object
+
+ properties:
+ reg:
+ maxItems: 1
+ description:
+ Offset and size in bytes within the storage device.
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx6sx-clock.h>
+
+ ocotp: efuse@21bc000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "fsl,imx6sx-ocotp", "syscon";
+ reg = <0x021bc000 0x4000>;
+ clocks = <&clks IMX6SX_CLK_OCOTP>;
+
+ cpu_speed_grade: speed-grade@10 {
+ reg = <0x10 4>;
+ };
+
+ tempmon_calib: calib@38 {
+ reg = <0x38 4>;
+ };
+
+ tempmon_temp_grade: temp-grade@20 {
+ reg = <0x20 4>;
+ };
+ };
+
+...