| What: /sys/class/remoteproc/.../firmware |
| Date: October 2016 |
| Contact: Matt Redfearn <matt.redfearn@mips.com> |
| Description: Remote processor firmware |
| |
| Reports the name of the firmware currently loaded to the |
| remote processor. |
| |
| To change the running firmware, ensure the remote processor is |
| stopped (using /sys/class/remoteproc/.../state) and write a new filename. |
| |
| What: /sys/class/remoteproc/.../state |
| Date: October 2016 |
| Contact: Matt Redfearn <matt.redfearn@mips.com> |
| Description: Remote processor state |
| |
| Reports the state of the remote processor, which will be one of: |
| |
| "offline" |
| "suspended" |
| "running" |
| "crashed" |
| "invalid" |
| |
| "offline" means the remote processor is powered off. |
| |
| "suspended" means that the remote processor is suspended and |
| must be woken to receive messages. |
| |
| "running" is the normal state of an available remote processor |
| |
| "crashed" indicates that a problem/crash has been detected on |
| the remote processor. |
| |
| "invalid" is returned if the remote processor is in an |
| unknown state. |
| |
| Writing this file controls the state of the remote processor. |
| The following states can be written: |
| |
| "start" |
| "stop" |
| |
| Writing "start" will attempt to start the processor running the |
| firmware indicated by, or written to, |
| /sys/class/remoteproc/.../firmware. The remote processor should |
| transition to "running" state. |
| |
| Writing "stop" will attempt to halt the remote processor and |
| return it to the "offline" state. |