90 lines
2.0 KiB
YAML
90 lines
2.0 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mtd/mtd.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MTD (Memory Technology Device)
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maintainers:
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- Miquel Raynal <miquel.raynal@bootlin.com>
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- Richard Weinberger <richard@nod.at>
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properties:
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$nodename:
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pattern: "^flash(@.*)?$"
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label:
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description:
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User-defined MTD device name. Can be used to assign user friendly
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names to MTD devices (instead of the flash model or flash controller
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based name) in order to ease flash device identification and/or
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describe what they are used for.
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patternProperties:
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"^otp(-[0-9]+)?$":
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type: object
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$ref: ../nvmem/nvmem.yaml#
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description: |
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An OTP memory region. Some flashes provide a one-time-programmable
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memory whose content can either be programmed by a user or is already
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pre-programmed by the factory. Some flashes might provide both.
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properties:
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compatible:
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enum:
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- user-otp
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- factory-otp
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required:
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- compatible
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additionalProperties: true
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examples:
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- |
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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flash@0 {
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reg = <0>;
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compatible = "jedec,spi-nor";
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label = "System-firmware";
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};
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};
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- |
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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flash@0 {
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reg = <0>;
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compatible = "jedec,spi-nor";
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otp-1 {
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compatible = "factory-otp";
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#address-cells = <1>;
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#size-cells = <1>;
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electronic-serial-number@0 {
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reg = <0 8>;
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};
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};
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otp-2 {
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compatible = "user-otp";
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#address-cells = <1>;
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#size-cells = <1>;
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mac-address@0 {
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reg = <0 6>;
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};
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};
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};
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};
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...
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