tegrakernel/kernel/kernel-4.9/Documentation/devicetree/bindings/serial/st-asc.txt

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*st-asc(Serial Port)
Required properties:
- compatible : Should be "st,asc".
- reg, reg-names, interrupts, interrupt-names : Standard way to define device
resources with names. look in
Documentation/devicetree/bindings/resource-names.txt
Optional properties:
- st,hw-flow-ctrl bool flag to enable hardware flow control.
- st,force-m1 bool flat to force asc to be in Mode-1 recommeded
for high bit rates (above 19.2K)
Example:
serial@fe440000{
compatible = "st,asc";
reg = <0xfe440000 0x2c>;
interrupts = <0 209 0>;
};