Document the device tree bindings for the sci serial port devices. Cc: devicetree@xxxxxxxxxxxxxxx Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> Acked-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> --- .../bindings/serial/renesas,sci-serial.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/renesas,sci-serial.txt diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt new file mode 100644 index 0000000..f372cf2 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -0,0 +1,46 @@ +* Renesas SH-Mobile Serial Communication Interface + +Required properties: + + - compatible: Must contain one of the following: + + - "renesas,scif-r8a7790" for R8A7790 (R-Car H2) SCIF compatible UART. + - "renesas,scifa-r8a7790" for R8A7790 (R-Car H2) SCIFA compatible UART. + - "renesas,scifb-r8a7790" for R8A7790 (R-Car H2) SCIFB compatible UART. + - "renesas,hscif-r8a7790" for R8A7790 (R-Car H2) HSCIF compatible UART. + - "renesas,scif-r8a7791" for R8A7791 (R-Car M2) SCIF compatible UART. + - "renesas,scifa-r8a7791" for R8A7791 (R-Car M2) SCIFA compatible UART. + - "renesas,scifb-r8a7791" for R8A7791 (R-Car M2) SCIFB compatible UART. + - "renesas,hscif-r8a7791" for R8A7791 (R-Car M2) HSCIF compatible UART. + - "renesas,scif" for generic SCIF compatible UART. + - "renesas,scifa" for generic SCIFA compatible UART. + - "renesas,scifb" for generic SCIFB compatible UART. + - "renesas,hscif" for generic HSCIF compatible UART. + + When compatible with the generic version, nodes must list the + SoC-specific version corresponding to the platform first followed by the + generic version. + + - reg: Base address and length of the I/O registers used by the UART. + - interrupts: Must contain an interrupt-specifier for the SCIx interrupt. + + - clocks: Must contain a phandle and clock-specifier pair for each entry + in clock-names. + - clock-names: Must contain "sci_ick" for the SCIx UART interface clock. + +Note: Each enabled SCIx UART should have an alias correctly numbered in the +"aliases" node. + +Example: + aliases { + serial0 = &scifa0; + }; + + scifa0: serial@e6c40000 { + compatible = "renesas,scifa-r8a7790", "renesas,scifa-generic"; + reg = <0 0xe6c40000 0 64>; + interrupt-parent = <&gic>; + interrupts = <0 144 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&mstp2_clks R8A7790_CLK_SCIFA0>; + clock-names = "sci_ick"; + }; -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html