1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/serial/renesas,scif.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Renesas Serial Communication Interface with FIFO (SCIF) 8 9maintainers: 10 - Geert Uytterhoeven <geert+renesas@glider.be> 11 12allOf: 13 - $ref: serial.yaml# 14 15properties: 16 compatible: 17 oneOf: 18 - items: 19 - enum: 20 - renesas,scif-r7s72100 # RZ/A1H 21 - const: renesas,scif # generic SCIF compatible UART 22 23 - items: 24 - enum: 25 - renesas,scif-r7s9210 # RZ/A2 26 27 - items: 28 - enum: 29 - renesas,scif-r8a7778 # R-Car M1 30 - renesas,scif-r8a7779 # R-Car H1 31 - const: renesas,rcar-gen1-scif # R-Car Gen1 32 - const: renesas,scif # generic SCIF compatible UART 33 34 - items: 35 - enum: 36 - renesas,scif-r8a7742 # RZ/G1H 37 - renesas,scif-r8a7743 # RZ/G1M 38 - renesas,scif-r8a7744 # RZ/G1N 39 - renesas,scif-r8a7745 # RZ/G1E 40 - renesas,scif-r8a77470 # RZ/G1C 41 - renesas,scif-r8a7790 # R-Car H2 42 - renesas,scif-r8a7791 # R-Car M2-W 43 - renesas,scif-r8a7792 # R-Car V2H 44 - renesas,scif-r8a7793 # R-Car M2-N 45 - renesas,scif-r8a7794 # R-Car E2 46 - const: renesas,rcar-gen2-scif # R-Car Gen2 and RZ/G1 47 - const: renesas,scif # generic SCIF compatible UART 48 49 - items: 50 - enum: 51 - renesas,scif-r8a774a1 # RZ/G2M 52 - renesas,scif-r8a774b1 # RZ/G2N 53 - renesas,scif-r8a774c0 # RZ/G2E 54 - renesas,scif-r8a774e1 # RZ/G2H 55 - renesas,scif-r8a7795 # R-Car H3 56 - renesas,scif-r8a7796 # R-Car M3-W 57 - renesas,scif-r8a77961 # R-Car M3-W+ 58 - renesas,scif-r8a77965 # R-Car M3-N 59 - renesas,scif-r8a77970 # R-Car V3M 60 - renesas,scif-r8a77980 # R-Car V3H 61 - renesas,scif-r8a77990 # R-Car E3 62 - renesas,scif-r8a77995 # R-Car D3 63 - const: renesas,rcar-gen3-scif # R-Car Gen3 and RZ/G2 64 - const: renesas,scif # generic SCIF compatible UART 65 66 - items: 67 - enum: 68 - renesas,scif-r8a779a0 # R-Car V3U 69 - renesas,scif-r8a779f0 # R-Car S4-8 70 - renesas,scif-r8a779g0 # R-Car V4H 71 - const: renesas,rcar-gen4-scif # R-Car Gen4 72 - const: renesas,scif # generic SCIF compatible UART 73 74 - items: 75 - enum: 76 - renesas,scif-r9a07g044 # RZ/G2{L,LC} 77 78 - items: 79 - enum: 80 - renesas,scif-r9a07g043 # RZ/G2UL and RZ/Five 81 - renesas,scif-r9a07g054 # RZ/V2L 82 - renesas,scif-r9a08g045 # RZ/G3S 83 - const: renesas,scif-r9a07g044 # RZ/G2{L,LC} fallback 84 85 reg: 86 maxItems: 1 87 88 interrupts: 89 oneOf: 90 - items: 91 - description: A combined interrupt 92 - items: 93 - description: Error interrupt 94 - description: Receive buffer full interrupt 95 - description: Transmit buffer empty interrupt 96 - description: Break interrupt 97 - items: 98 - description: Error interrupt 99 - description: Receive buffer full interrupt 100 - description: Transmit buffer empty interrupt 101 - description: Break interrupt 102 - description: Data Ready interrupt 103 - description: Transmit End interrupt 104 105 interrupt-names: 106 oneOf: 107 - items: 108 - const: eri 109 - const: rxi 110 - const: txi 111 - const: bri 112 - items: 113 - const: eri 114 - const: rxi 115 - const: txi 116 - const: bri 117 - const: dri 118 - const: tei 119 120 clocks: 121 minItems: 1 122 maxItems: 4 123 124 clock-names: 125 minItems: 1 126 maxItems: 4 127 items: 128 enum: 129 - fck # UART functional clock 130 - sck # optional external clock input 131 - brg_int # optional internal clock source for BRG frequency divider 132 - scif_clk # optional external clock source for BRG frequency divider 133 134 power-domains: 135 maxItems: 1 136 137 resets: 138 maxItems: 1 139 140 dmas: 141 minItems: 2 142 maxItems: 4 143 description: 144 Must contain a list of pairs of references to DMA specifiers, one for 145 transmission, and one for reception. 146 147 dma-names: 148 minItems: 2 149 maxItems: 4 150 items: 151 enum: 152 - tx 153 - rx 154 155required: 156 - compatible 157 - reg 158 - interrupts 159 - clocks 160 - clock-names 161 - power-domains 162 163if: 164 properties: 165 compatible: 166 contains: 167 enum: 168 - renesas,rcar-gen2-scif 169 - renesas,rcar-gen3-scif 170 - renesas,rcar-gen4-scif 171 - renesas,scif-r9a07g044 172then: 173 required: 174 - resets 175 176unevaluatedProperties: false 177 178examples: 179 - | 180 #include <dt-bindings/clock/r8a7791-cpg-mssr.h> 181 #include <dt-bindings/interrupt-controller/arm-gic.h> 182 #include <dt-bindings/power/r8a7791-sysc.h> 183 aliases { 184 serial0 = &scif0; 185 }; 186 187 scif0: serial@e6e60000 { 188 compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif", 189 "renesas,scif"; 190 reg = <0xe6e60000 64>; 191 interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>; 192 clocks = <&cpg CPG_MOD 721>, <&cpg CPG_CORE R8A7791_CLK_ZS>, 193 <&scif_clk>; 194 clock-names = "fck", "brg_int", "scif_clk"; 195 dmas = <&dmac0 0x29>, <&dmac0 0x2a>, <&dmac1 0x29>, <&dmac1 0x2a>; 196 dma-names = "tx", "rx", "tx", "rx"; 197 power-domains = <&sysc R8A7791_PD_ALWAYS_ON>; 198 resets = <&cpg 721>; 199 }; 200