| 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>; |
| }; |
