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| -rw-r--r-- | Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt new file mode 100644 index 000000000..a65d7b71e --- /dev/null +++ b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt @@ -0,0 +1,26 @@ +* Device Tree Bindings for I2C based Trusted Platform Module(TPM) + +Required properties: + +- compatible : 'manufacturer,model', eg. nuvoton,npct650 +- label : human readable string describing the device, eg. "tpm" +- linux,sml-base : 64-bit base address of the reserved memory allocated for + the firmware event log +- linux,sml-size : size of the memory allocated for the firmware event log + +Optional properties: + +- powered-while-suspended: present when the TPM is left powered on between + suspend and resume (makes the suspend/resume + callbacks do nothing). + +Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C) +---------------------------------------------------------- + +tpm@57 { + reg = <0x57>; + label = "tpm"; + compatible = "nuvoton,npct650", "nuvoton,npct601"; + linux,sml-base = <0x7f 0xfd450000>; + linux,sml-size = <0x10000>; +}; |