18c2ecf20Sopenharmony_ci* H1 Secure Microcontroller with Cr50 Firmware on SPI Bus.
28c2ecf20Sopenharmony_ci
38c2ecf20Sopenharmony_ciH1 Secure Microcontroller running Cr50 firmware provides several
48c2ecf20Sopenharmony_cifunctions, including TPM-like functionality. It communicates over
58c2ecf20Sopenharmony_ciSPI using the FIFO protocol described in the PTP Spec, section 6.
68c2ecf20Sopenharmony_ci
78c2ecf20Sopenharmony_ciRequired properties:
88c2ecf20Sopenharmony_ci- compatible: Should be "google,cr50".
98c2ecf20Sopenharmony_ci- spi-max-frequency: Maximum SPI frequency.
108c2ecf20Sopenharmony_ci
118c2ecf20Sopenharmony_ciExample:
128c2ecf20Sopenharmony_ci
138c2ecf20Sopenharmony_ci&spi0 {
148c2ecf20Sopenharmony_ci	tpm@0 {
158c2ecf20Sopenharmony_ci		compatible = "google,cr50";
168c2ecf20Sopenharmony_ci		reg = <0>;
178c2ecf20Sopenharmony_ci		spi-max-frequency = <800000>;
188c2ecf20Sopenharmony_ci	};
198c2ecf20Sopenharmony_ci};
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