1fb8d6c8dSAndrey Pronin* H1 Secure Microcontroller with Cr50 Firmware on SPI Bus.
2fb8d6c8dSAndrey Pronin
3fb8d6c8dSAndrey ProninH1 Secure Microcontroller running Cr50 firmware provides several
4fb8d6c8dSAndrey Proninfunctions, including TPM-like functionality. It communicates over
5fb8d6c8dSAndrey ProninSPI using the FIFO protocol described in the PTP Spec, section 6.
6fb8d6c8dSAndrey Pronin
7fb8d6c8dSAndrey ProninRequired properties:
8fb8d6c8dSAndrey Pronin- compatible: Should be "google,cr50".
9fb8d6c8dSAndrey Pronin- spi-max-frequency: Maximum SPI frequency.
10fb8d6c8dSAndrey Pronin
11fb8d6c8dSAndrey ProninExample:
12fb8d6c8dSAndrey Pronin
13fb8d6c8dSAndrey Pronin&spi0 {
14fb8d6c8dSAndrey Pronin	tpm@0 {
15fb8d6c8dSAndrey Pronin		compatible = "google,cr50";
16fb8d6c8dSAndrey Pronin		reg = <0>;
17fb8d6c8dSAndrey Pronin		spi-max-frequency = <800000>;
18fb8d6c8dSAndrey Pronin	};
19fb8d6c8dSAndrey Pronin};
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