mirror_ubuntu-kernels/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-mmio.yaml

50 lines
1.3 KiB
YAML

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