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    Subject[PATCH v2 1/2] dt-bindings: firmware: Add Open Profile for DICE
    From
    Add DeviceTree bindings for Open Profile for DICE. DICE is a protocol
    for deriving Compound Device Identifier (CDI) certificates. These are
    generated by the firmware/bootloader and stored in memory. Location of
    the buffer is described as a reserved memory region referenced by
    a compatible DICE device node.

    See https://pigweed.googlesource.com/open-dice

    Signed-off-by: David Brazdil <dbrazdil@google.com>
    ---
    .../devicetree/bindings/firmware/dice.yaml | 51 +++++++++++++++++++
    1 file changed, 51 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/firmware/dice.yaml

    diff --git a/Documentation/devicetree/bindings/firmware/dice.yaml b/Documentation/devicetree/bindings/firmware/dice.yaml
    new file mode 100644
    index 000000000000..c0726109e73d
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/firmware/dice.yaml
    @@ -0,0 +1,51 @@
    +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/firmware/dice.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: Open Profile for DICE Device Tree Bindings
    +
    +description: |
    + This binding represents a reserved memory region containing secrets derived
    + derived following the Open Profile for DICE.
    +
    + See https://pigweed.googlesource.com/open-dice/
    +
    +maintainers:
    + - David Brazdil <dbrazdil@google.com>
    +
    +properties:
    + compatible:
    + enum:
    + - google,dice
    +
    + memory-region:
    + maxItems: 1
    + description: |
    + phandle to the reserved memory node to be associated with the device
    + The reserved memory node should be defined as per the bindings,
    + Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml
    +
    +required:
    + - compatible
    + - memory-region
    +
    +additionalProperties: false
    +
    +examples:
    + - |
    + reserved-memory {
    + #address-cells = <2>;
    + #size-cells = <1>;
    +
    + dice_reserved: dice@12340000 {
    + reg = <0x00 0x12340000 0x2000>;
    + no-map;
    + };
    + };
    +
    + dice {
    + compatible = "google,dice";
    + memory-region = <&dice_reserved>;
    + };
    --
    2.34.1.400.ga245620fadb-goog
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