1config SCMI_FIRMWARE 2 bool "Enable SCMI support" 3 select FIRMWARE 4 select OF_TRANSLATE 5 depends on SANDBOX || DM_MAILBOX || ARM_SMCCC || OPTEE 6 help 7 System Control and Management Interface (SCMI) is a communication 8 protocol that defines standard interfaces for power, performance 9 and system management. The SCMI specification is available at 10 https://developer.arm.com/architectures/system-architectures/software-standards/scmi 11 12 An SCMI agent communicates with a related SCMI server firmware 13 located in another sub-system, as a companion micro controller 14 or a companion host in the CPU system. 15 16 Communications between agent (client) and the SCMI server are 17 based on message exchange. Messages can be exchanged over transport 18 channels as a mailbox device or an Arm SMCCC service with some 19 piece of identified shared memory. 20 21config SCMI_AGENT_MAILBOX 22 bool "Enable SCMI agent mailbox" 23 depends on SCMI_FIRMWARE && DM_MAILBOX 24 default y 25 help 26 Enable the SCMI communication channel based on mailbox 27 for compatible "arm,scmi". 28 29config SCMI_AGENT_SMCCC 30 bool "Enable SCMI agent SMCCC" 31 depends on SCMI_FIRMWARE && ARM_SMCCC 32 default y 33 help 34 Enable the SCMI communication channel based on Arm SMCCC service for 35 compatible "arm,scmi-smc". 36 37config SCMI_AGENT_OPTEE 38 bool "Enable SCMI agent OP-TEE" 39 depends on SCMI_FIRMWARE && OPTEE 40 default y 41 help 42 Enable the SCMI communication channel based on OP-TEE transport 43 for compatible "linaro,scmi-optee". 44