18c2ecf20Sopenharmony_ci* Device Tree Bindings for I2C based Trusted Platform Module(TPM) 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciRequired properties: 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci- compatible : 'manufacturer,model', eg. nuvoton,npct650 68c2ecf20Sopenharmony_ci- label : human readable string describing the device, eg. "tpm" 78c2ecf20Sopenharmony_ci- linux,sml-base : 64-bit base address of the reserved memory allocated for 88c2ecf20Sopenharmony_ci the firmware event log 98c2ecf20Sopenharmony_ci- linux,sml-size : size of the memory allocated for the firmware event log 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ciOptional properties: 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci- powered-while-suspended: present when the TPM is left powered on between 148c2ecf20Sopenharmony_ci suspend and resume (makes the suspend/resume 158c2ecf20Sopenharmony_ci callbacks do nothing). 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ciExample (for OpenPower Systems with Nuvoton TPM 2.0 on I2C) 188c2ecf20Sopenharmony_ci---------------------------------------------------------- 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_citpm@57 { 218c2ecf20Sopenharmony_ci reg = <0x57>; 228c2ecf20Sopenharmony_ci label = "tpm"; 238c2ecf20Sopenharmony_ci compatible = "nuvoton,npct650", "nuvoton,npct601"; 248c2ecf20Sopenharmony_ci linux,sml-base = <0x7f 0xfd450000>; 258c2ecf20Sopenharmony_ci linux,sml-size = <0x10000>; 268c2ecf20Sopenharmony_ci}; 27