1What: /sys/class/remoteproc/.../firmware 2Date: October 2016 3Contact: Matt Redfearn <matt.redfearn@mips.com> 4Description: Remote processor firmware 5 6 Reports the name of the firmware currently loaded to the 7 remote processor. 8 9 To change the running firmware, ensure the remote processor is 10 stopped (using /sys/class/remoteproc/.../state) and write a new filename. 11 12What: /sys/class/remoteproc/.../state 13Date: October 2016 14Contact: Matt Redfearn <matt.redfearn@mips.com> 15Description: Remote processor state 16 17 Reports the state of the remote processor, which will be one of: 18 19 "offline" 20 "suspended" 21 "running" 22 "crashed" 23 "invalid" 24 25 "offline" means the remote processor is powered off. 26 27 "suspended" means that the remote processor is suspended and 28 must be woken to receive messages. 29 30 "running" is the normal state of an available remote processor 31 32 "crashed" indicates that a problem/crash has been detected on 33 the remote processor. 34 35 "invalid" is returned if the remote processor is in an 36 unknown state. 37 38 Writing this file controls the state of the remote processor. 39 The following states can be written: 40 41 "start" 42 "stop" 43 44 Writing "start" will attempt to start the processor running the 45 firmware indicated by, or written to, 46 /sys/class/remoteproc/.../firmware. The remote processor should 47 transition to "running" state. 48 49 Writing "stop" will attempt to halt the remote processor and 50 return it to the "offline" state. 51