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