0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: "http://devicetree.org/schemas/serial/renesas,scifa.yaml#"
0005 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
0006
0007 title: Renesas Serial Communications Interface with FIFO A (SCIFA)
0008
0009 maintainers:
0010 - Geert Uytterhoeven <geert+renesas@glider.be>
0011
0012 allOf:
0013 - $ref: serial.yaml#
0014
0015 properties:
0016 compatible:
0017 oneOf:
0018 - items:
0019 - enum:
0020 - renesas,scifa-r8a73a4 # R-Mobile APE6
0021 - renesas,scifa-r8a7740 # R-Mobile A1
0022 - renesas,scifa-sh73a0 # SH-Mobile AG5
0023 - const: renesas,scifa # generic SCIFA compatible UART
0024
0025 - items:
0026 - enum:
0027 - renesas,scifa-r8a7742 # RZ/G1H
0028 - renesas,scifa-r8a7743 # RZ/G1M
0029 - renesas,scifa-r8a7744 # RZ/G1N
0030 - renesas,scifa-r8a7745 # RZ/G1E
0031 - renesas,scifa-r8a7790 # R-Car H2
0032 - renesas,scifa-r8a7791 # R-Car M2-W
0033 - renesas,scifa-r8a7793 # R-Car M2-N
0034 - renesas,scifa-r8a7794 # R-Car E2
0035 - const: renesas,rcar-gen2-scifa # R-Car Gen2 and RZ/G1
0036 - const: renesas,scifa # generic SCIFA compatible UART
0037
0038 reg:
0039 maxItems: 1
0040
0041 interrupts:
0042 maxItems: 1
0043
0044 clocks:
0045 maxItems: 1
0046
0047 clock-names:
0048 enum:
0049 - fck # UART functional clock
0050
0051 power-domains:
0052 maxItems: 1
0053
0054 resets:
0055 maxItems: 1
0056
0057 dmas:
0058 minItems: 2
0059 maxItems: 4
0060 description:
0061 Must contain a list of pairs of references to DMA specifiers, one for
0062 transmission, and one for reception.
0063
0064 dma-names:
0065 minItems: 2
0066 maxItems: 4
0067 items:
0068 enum:
0069 - tx
0070 - rx
0071
0072 required:
0073 - compatible
0074 - reg
0075 - interrupts
0076 - clocks
0077 - clock-names
0078 - power-domains
0079
0080 unevaluatedProperties: false
0081
0082 if:
0083 properties:
0084 compatible:
0085 contains:
0086 enum:
0087 - renesas,rcar-gen2-scifa
0088 then:
0089 required:
0090 - resets
0091
0092 examples:
0093 - |
0094 #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
0095 #include <dt-bindings/interrupt-controller/arm-gic.h>
0096 #include <dt-bindings/power/r8a7790-sysc.h>
0097 aliases {
0098 serial0 = &scifa0;
0099 };
0100
0101 scifa0: serial@e6c40000 {
0102 compatible = "renesas,scifa-r8a7790", "renesas,rcar-gen2-scifa",
0103 "renesas,scifa";
0104 reg = <0xe6c40000 64>;
0105 interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
0106 clocks = <&cpg CPG_MOD 204>;
0107 clock-names = "fck";
0108 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
0109 resets = <&cpg 204>;
0110 dmas = <&dmac0 0x21>, <&dmac0 0x22>, <&dmac1 0x21>, <&dmac1 0x22>;
0111 dma-names = "tx", "rx", "tx", "rx";
0112 };
