From: Dong Aisheng <[email protected]> The FlexCAN controller can parse clock source property from DTS file to select PE clock source.
Signed-off-by: Dong Aisheng <[email protected]> Signed-off-by: Joakim Zhang <[email protected]> --- Documentation/devicetree/bindings/net/can/fsl-flexcan.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt index bc77477c6878..a04168605998 100644 --- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt +++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt @@ -32,6 +32,13 @@ Optional properties: ack_gpr is the gpr register offset of CAN stop acknowledge. ack_bit is the bit offset of CAN stop acknowledge. +- fsl,clk-source: Select the clock source to the CAN Protocol Engine (PE). + It's SoC Implementation dependent. Refer to RM for detailed + definition. If this property is not set in device tree node + then driver selects clock source 1 by default. + 0: clock source 0 (oscillator clock) + 1: clock source 1 (peripheral clock) + Example: can@1c000 { @@ -40,4 +47,5 @@ Example: interrupts = <48 0x2>; interrupt-parent = <&mpic>; clock-frequency = <200000000>; // filled in by bootloader + fsl,clk-source = <0>; // select clock source 0 for PE }; -- 2.17.1
