tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1Trusted Computing Group MMIO Trusted Platform Module
2
3The TCG defines multi vendor standard for accessing a TPM chip, this
4is the standard protocol defined to access the TPM via MMIO. Typically
5this interface will be implemented over Intel's LPC bus.
6
7Refer to the 'TCG PC Client Specific TPM Interface Specification (TIS)' TCG
8publication for the specification.
9
10Required properties:
11
12- compatible: should contain a string below for the chip, followed by
13 "tcg,tpm-tis-mmio". Valid chip strings are:
14 * "atmel,at97sc3204"
15- reg: The location of the MMIO registers, should be at least 0x5000 bytes
16- interrupts: An optional interrupt indicating command completion.
17
18Example:
19
20 tpm_tis@90000 {
21 compatible = "atmel,at97sc3204", "tcg,tpm-tis-mmio";
22 reg = <0x90000 0x5000>;
23 interrupt-parent = <&EIC0>;
24 interrupts = <1 2>;
25 };