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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/tpm/tcg,tpm-tis-mmio.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: MMIO-accessed Trusted Platform Module conforming to TCG TIS specification8 9maintainers:10 - Lukas Wunner <lukas@wunner.de>11 12description: |13 The Trusted Computing Group (TCG) has defined a multi-vendor standard14 for accessing a TPM chip. It can be transported over various buses,15 one of them being LPC (via MMIO). The standard is named:16 TCG PC Client Specific TPM Interface Specification (TIS)17 https://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-specification-tis/18 19properties:20 compatible:21 items:22 - enum:23 - at97sc320124 - atmel,at97sc320425 - socionext,synquacer-tpm-mmio26 - const: tcg,tpm-tis-mmio27 28 reg:29 description:30 location and length of the MMIO registers, length should be31 at least 0x5000 bytes32 33allOf:34 - $ref: tpm-common.yaml#35 36required:37 - compatible38 - reg39 40unevaluatedProperties: false41 42examples:43 - |44 tpm@90000 {45 compatible = "atmel,at97sc3204", "tcg,tpm-tis-mmio";46 reg = <0x90000 0x5000>;47 interrupt-parent = <&EIC0>;48 interrupts = <1 2>;49 };50