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-rw-r--r--Documentation/devicetree/bindings/serial/renesas,sci-serial.txt46
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+* 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";
+ };