| Etienne Carriere | 02fd126 | 2020-09-09 18:44:00 +0200 | [diff] [blame] | 1 | config SCMI_FIRMWARE |
| 2 | bool "Enable SCMI support" |
| 3 | select FIRMWARE |
| 4 | select OF_TRANSLATE |
| Etienne Carriere | d4932bd | 2021-11-09 17:08:24 +0100 | [diff] [blame] | 5 | depends on SANDBOX || DM_MAILBOX || ARM_SMCCC || OPTEE |
| Etienne Carriere | 02fd126 | 2020-09-09 18:44:00 +0200 | [diff] [blame] | 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 |
| Etienne Carriere | d4932bd | 2021-11-09 17:08:24 +0100 | [diff] [blame] | 17 | based on message exchange. Messages can be exchanged over transport |
| Etienne Carriere | a26d0ec | 2020-09-09 18:44:02 +0200 | [diff] [blame] | 18 | channels as a mailbox device or an Arm SMCCC service with some |
| 19 | piece of identified shared memory. |
| Patrick Delaunay | 39d1eee | 2021-10-28 19:13:15 +0200 | [diff] [blame] | 20 | |
| 21 | config 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 | |
| 29 | config 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". |
| Etienne Carriere | d4932bd | 2021-11-09 17:08:24 +0100 | [diff] [blame] | 36 | |
| 37 | config 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". |