50 lines
1.3 KiB
YAML
50 lines
1.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/tpm/tcg,tpm-tis-mmio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MMIO-accessed Trusted Platform Module conforming to TCG TIS specification
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maintainers:
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- Lukas Wunner <lukas@wunner.de>
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description: |
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The Trusted Computing Group (TCG) has defined a multi-vendor standard
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for accessing a TPM chip. It can be transported over various buses,
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one of them being LPC (via MMIO). The standard is named:
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TCG PC Client Specific TPM Interface Specification (TIS)
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https://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-specification-tis/
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properties:
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compatible:
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items:
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- enum:
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- at97sc3201
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- atmel,at97sc3204
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- socionext,synquacer-tpm-mmio
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- const: tcg,tpm-tis-mmio
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reg:
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description:
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location and length of the MMIO registers, length should be
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at least 0x5000 bytes
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allOf:
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- $ref: tpm-common.yaml#
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required:
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- compatible
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- reg
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unevaluatedProperties: false
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examples:
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- |
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tpm@90000 {
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compatible = "atmel,at97sc3204", "tcg,tpm-tis-mmio";
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reg = <0x90000 0x5000>;
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interrupt-parent = <&EIC0>;
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interrupts = <1 2>;
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};
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