tjh.dev
Linux kernel mirror (for testing)
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1* Renesas SH-Mobile Serial Communication Interface
2
3Required properties:
4
5 - compatible: Must contain one of the following:
6
7 - "renesas,scif-r7s72100" for R7S72100 (RZ/A1H) SCIF compatible UART.
8 - "renesas,scifa-r8a73a4" for R8A73A4 (R-Mobile APE6) SCIFA compatible UART.
9 - "renesas,scifb-r8a73a4" for R8A73A4 (R-Mobile APE6) SCIFB compatible UART.
10 - "renesas,scifa-r8a7740" for R8A7740 (R-Mobile A1) SCIFA compatible UART.
11 - "renesas,scifb-r8a7740" for R8A7740 (R-Mobile A1) SCIFB compatible UART.
12 - "renesas,scif-r8a7778" for R8A7778 (R-Car M1) SCIF compatible UART.
13 - "renesas,scif-r8a7779" for R8A7779 (R-Car H1) SCIF compatible UART.
14 - "renesas,scif-r8a7790" for R8A7790 (R-Car H2) SCIF compatible UART.
15 - "renesas,scifa-r8a7790" for R8A7790 (R-Car H2) SCIFA compatible UART.
16 - "renesas,scifb-r8a7790" for R8A7790 (R-Car H2) SCIFB compatible UART.
17 - "renesas,hscif-r8a7790" for R8A7790 (R-Car H2) HSCIF compatible UART.
18 - "renesas,scif-r8a7791" for R8A7791 (R-Car M2) SCIF compatible UART.
19 - "renesas,scifa-r8a7791" for R8A7791 (R-Car M2) SCIFA compatible UART.
20 - "renesas,scifb-r8a7791" for R8A7791 (R-Car M2) SCIFB compatible UART.
21 - "renesas,hscif-r8a7791" for R8A7791 (R-Car M2) HSCIF compatible UART.
22 - "renesas,scif-r8a7794" for R8A7794 (R-Car E2) SCIF compatible UART.
23 - "renesas,scifa-r8a7794" for R8A7794 (R-Car E2) SCIFA compatible UART.
24 - "renesas,scifb-r8a7794" for R8A7794 (R-Car E2) SCIFB compatible UART.
25 - "renesas,hscif-r8a7794" for R8A7794 (R-Car E2) HSCIF compatible UART.
26 - "renesas,scifa-sh73a0" for SH73A0 (SH-Mobile AG5) SCIFA compatible UART.
27 - "renesas,scifb-sh73a0" for SH73A0 (SH-Mobile AG5) SCIFB compatible UART.
28 - "renesas,scif" for generic SCIF compatible UART.
29 - "renesas,scifa" for generic SCIFA compatible UART.
30 - "renesas,scifb" for generic SCIFB compatible UART.
31 - "renesas,hscif" for generic HSCIF compatible UART.
32 - "renesas,sci" for generic SCI compatible UART.
33
34 When compatible with the generic version, nodes must list the
35 SoC-specific version corresponding to the platform first followed by the
36 generic version.
37
38 - reg: Base address and length of the I/O registers used by the UART.
39 - interrupts: Must contain an interrupt-specifier for the SCIx interrupt.
40
41 - clocks: Must contain a phandle and clock-specifier pair for each entry
42 in clock-names.
43 - clock-names: Must contain "sci_ick" for the SCIx UART interface clock.
44
45Note: Each enabled SCIx UART should have an alias correctly numbered in the
46"aliases" node.
47
48Optional properties:
49 - dmas: Must contain a list of two references to DMA specifiers, one for
50 transmission, and one for reception.
51 - dma-names: Must contain a list of two DMA names, "tx" and "rx".
52
53Example:
54 aliases {
55 serial0 = &scifa0;
56 };
57
58 scifa0: serial@e6c40000 {
59 compatible = "renesas,scifa-r8a7790", "renesas,scifa";
60 reg = <0 0xe6c40000 0 64>;
61 interrupt-parent = <&gic>;
62 interrupts = <0 144 IRQ_TYPE_LEVEL_HIGH>;
63 clocks = <&mstp2_clks R8A7790_CLK_SCIFA0>;
64 clock-names = "sci_ick";
65 dmas = <&dmac0 0x21>, <&dmac0 0x22>;
66 dma-names = "tx", "rx";
67 };