Documentation/devicetree/bindings/security/tpm/google,cr50.txt

   1 * H1 Secure Microcontroller with Cr50 Firmware on SPI Bus.
   2
   3 H1 Secure Microcontroller running Cr50 firmware provides several
   4 functions, including TPM-like functionality. It communicates over
   5 SPI using the FIFO protocol described in the PTP Spec, section 6.
   6
   7 Required properties:
   8 - compatible: Should be "google,cr50".
   9 - spi-max-frequency: Maximum SPI frequency.
  10
  11 Example:
  12
  13 &spi0 {
  14         tpm@0 {
  15                 compatible = "google,cr50";
  16                 reg = <0>;
  17                 spi-max-frequency = <800000>;
  18         };
  19 };