bindings/tpm/tcg%2Ctpm-tis-i2c.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/tpm/tcg,tpm-tis-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: I²C-attached Trusted Platform Module conforming to TCG TIS specification
10   - Lukas Wunner <lukas@wunner.de>
13   The Trusted Computing Group (TCG) has defined a multi-vendor standard
17 …tps://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-spe…
21   TCG PC Client Platform TPM Profile Specification for TPM 2.0 (PTP)
22   https://trustedcomputinggroup.org/resource/pc-client-platform-tpm-profile-ptp-specification/
25   vendor-specific I²C interface.
30       - description: Generic TPM 2.0 chips conforming to TCG PTP interface
32           - enum:
33               - infineon,slb9673
34               - nuvoton,npct75x
35               - st,st33ktpm2xi2c
36           - const: tcg,tpm-tis-i2c
38       - description: TPM 1.2 and 2.0 chips with vendor-specific I²C interface
40           - enum:
41               - atmel,at97sc3204t # TPM 1.2
42               - infineon,slb9635tt # TPM 1.2 (maximum 100 kHz)
43               - infineon,slb9645tt # TPM 1.2 (maximum 400 kHz)
44               - infineon,tpm_i2c_infineon # TPM 1.2
45               - nuvoton,npct501 # TPM 1.2
46               - nuvoton,npct601 # TPM 2.0
47               - st,st33zp24-i2c # TPM 2.0
48               - winbond,wpct301 # TPM 1.2
54   - $ref: tpm-common.yaml#
57   - compatible
58   - reg
63   - |
65         #address-cells = <1>;
66         #size-cells = <0>;
72             linux,sml-base = <0x7f 0xfd450000>;
73             linux,sml-size = <0x10000>;
77   - |
78     #include <dt-bindings/gpio/gpio.h>
79     #include <dt-bindings/interrupt-controller/irq.h>
81         #address-cells = <1>;
82         #size-cells = <0>;
86             compatible = "st,st33zp24-i2c";
87             interrupt-parent = <&gpio5>;
89             lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>;