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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/devicetree/bindings/power/reset/qnap-poweroff.txt | |
| parent | Initial commit. (diff) | |
| download | linux-upstream/4.19.249.tar.xz linux-upstream/4.19.249.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/power/reset/qnap-poweroff.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/power/reset/qnap-poweroff.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power/reset/qnap-poweroff.txt b/Documentation/devicetree/bindings/power/reset/qnap-poweroff.txt new file mode 100644 index 000000000..c363d7173 --- /dev/null +++ b/Documentation/devicetree/bindings/power/reset/qnap-poweroff.txt @@ -0,0 +1,15 @@ +* QNAP Power Off + +QNAP NAS devices have a microcontroller controlling the main power +supply. This microcontroller is connected to UART1 of the Kirkwood and +Orion5x SoCs. Sending the character 'A', at 19200 baud, tells the +microcontroller to turn the power off. + +Synology NAS devices use a similar scheme, but a different baud rate, +9600, and a different character, '1'. + +Required Properties: +- compatible: Should be "qnap,power-off" or "synology,power-off" + +- reg: Address and length of the register set for UART1 +- clocks: tclk clock |