config SCMI_FIRMWARE bool "Enable SCMI support" select FIRMWARE select OF_TRANSLATE depends on SANDBOX || DM_MAILBOX || ARM_SMCCC help System Control and Management Interface (SCMI) is a communication protocol that defines standard interfaces for power, performance and system management. The SCMI specification is available at https://developer.arm.com/architectures/system-architectures/software-standards/scmi An SCMI agent communicates with a related SCMI server firmware located in another sub-system, as a companion micro controller or a companion host in the CPU system. Communications between agent (client) and the SCMI server are based on message exchange. Messages can be exchange over tranport channels as a mailbox device or an Arm SMCCC service with some piece of identified shared memory.