44 lines
899 B
Plaintext
44 lines
899 B
Plaintext
The chosen node
|
|
---------------
|
|
The chosen node does not represent a real device, but serves as a place
|
|
for passing data like which serial device to used to print the logs etc
|
|
|
|
|
|
stdout-path property
|
|
--------------------
|
|
Device trees may specify the device to be used for boot console output
|
|
with a stdout-path property under /chosen.
|
|
|
|
Example
|
|
-------
|
|
/ {
|
|
chosen {
|
|
stdout-path = "/serial@f00:115200";
|
|
};
|
|
|
|
serial@f00 {
|
|
compatible = "vendor,some-uart";
|
|
reg = <0xf00 0x10>;
|
|
};
|
|
};
|
|
|
|
tick-timer property
|
|
-------------------
|
|
In a system there are multiple timers, specify which timer to be used
|
|
as the tick-timer. Earlier it was hardcoded in the timer driver now
|
|
since device tree has all the timer nodes. Specify which timer to be
|
|
used as tick timer.
|
|
|
|
Example
|
|
-------
|
|
/ {
|
|
chosen {
|
|
tick-timer = "/timer2@f00";
|
|
};
|
|
|
|
timer2@f00 {
|
|
compatible = "vendor,some-timer";
|
|
reg = <0xf00 0x10>;
|
|
};
|
|
};
|