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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt')
-rw-r--r-- | Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt b/Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt new file mode 100644 index 000000000..7c6304426 --- /dev/null +++ b/Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt @@ -0,0 +1,25 @@ +Trusted Computing Group MMIO Trusted Platform Module + +The TCG defines multi vendor standard for accessing a TPM chip, this +is the standard protocol defined to access the TPM via MMIO. Typically +this interface will be implemented over Intel's LPC bus. + +Refer to the 'TCG PC Client Specific TPM Interface Specification (TIS)' TCG +publication for the specification. + +Required properties: + +- compatible: should contain a string below for the chip, followed by + "tcg,tpm-tis-mmio". Valid chip strings are: + * "atmel,at97sc3204" +- reg: The location of the MMIO registers, should be at least 0x5000 bytes +- interrupts: An optional interrupt indicating command completion. + +Example: + + tpm_tis@90000 { + compatible = "atmel,at97sc3204", "tcg,tpm-tis-mmio"; + reg = <0x90000 0x5000>; + interrupt-parent = <&EIC0>; + interrupts = <1 2>; + }; |