The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/security/tpm/tpm_tis_mmio.txt

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    1 Trusted Computing Group MMIO Trusted Platform Module
    2 
    3 The TCG defines multi vendor standard for accessing a TPM chip, this
    4 is the standard protocol defined to access the TPM via MMIO. Typically
    5 this interface will be implemented over Intel's LPC bus.
    6 
    7 Refer to the 'TCG PC Client Specific TPM Interface Specification (TIS)' TCG
    8 publication for the specification.
    9 
   10 Required 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 
   18 Example:
   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         };

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