1* H1 Secure Microcontroller with Cr50 Firmware on SPI Bus. 2 3H1 Secure Microcontroller running Cr50 firmware provides several 4functions, including TPM-like functionality. It communicates over 5SPI using the FIFO protocol described in the PTP Spec, section 6. 6 7Required properties: 8- compatible: Should be "google,cr50". 9- spi-max-frequency: Maximum SPI frequency. 10 11Example: 12 13&spi0 { 14 tpm@0 { 15 compatible = "google,cr50"; 16 reg = <0>; 17 spi-max-frequency = <800000>; 18 }; 19}; 20