diff options
| author | Andrew Lunn <andrew.lunn@ruag.com> | 2012-12-28 07:25:09 -0500 |
|---|---|---|
| committer | Anton Vorontsov <anton@enomsg.org> | 2013-01-06 17:00:23 -0500 |
| commit | e8fc721a9ab8dd6723063a92f5c5fdb5eaffbd6e (patch) | |
| tree | b00f842e79fdd1730e87395a7f1d1983d7cd0fd3 /Documentation/devicetree | |
| parent | 22f1229fe9a6790695f72b1cdba56fcaee867d75 (diff) | |
power/reset: Add a new driver to turn QNAP board power off
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>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt new file mode 100644 index 000000000000..9a599d27bd75 --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt | |||
| @@ -0,0 +1,13 @@ | |||
| 1 | * QNAP Power Off | ||
| 2 | |||
| 3 | QNAP NAS devices have a microcontroller controlling the main power | ||
| 4 | supply. This microcontroller is connected to UART1 of the Kirkwood and | ||
| 5 | Orion5x SoCs. Sending the charactor 'A', at 19200 baud, tells the | ||
| 6 | microcontroller to turn the power off. This driver adds a handler to | ||
| 7 | pm_power_off which is called to turn the power off. | ||
| 8 | |||
| 9 | Required Properties: | ||
| 10 | - compatible: Should be "qnap,power-off" | ||
| 11 | |||
| 12 | - reg: Address and length of the register set for UART1 | ||
| 13 | - clocks: tclk clock | ||