e8fc721a9a
The QNAP NAS boxes have a microcontroller attached to the SoCs second serial port. By sending it a simple command, it will turn the power for the board off. This driver registers a function for pm_power_off to send such a command. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
14 lines
484 B
Plaintext
14 lines
484 B
Plaintext
* QNAP Power Off
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QNAP NAS devices have a microcontroller controlling the main power
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supply. This microcontroller is connected to UART1 of the Kirkwood and
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Orion5x SoCs. Sending the charactor 'A', at 19200 baud, tells the
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microcontroller to turn the power off. This driver adds a handler to
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pm_power_off which is called to turn the power off.
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Required Properties:
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- compatible: Should be "qnap,power-off"
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- reg: Address and length of the register set for UART1
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- clocks: tclk clock
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