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 <[email protected]> 11 12properties: 13 compatible: 14 oneOf: 15 - items: 16 - enum: 17 - renesas,scif-r7s72100 # RZ/A1H 18 - const: renesas,scif # generic SCIF compatible UART 19 20 - items: 21 - enum: 22 - renesas,scif-r7s9210 # RZ/A2 23 24 - items: 25 - enum: 26 - renesas,scif-r8a7778 # R-Car M1 27 - renesas,scif-r8a7779 # R-Car H1 28 - const: renesas,rcar-gen1-scif # R-Car Gen1 29 - const: renesas,scif # generic SCIF compatible UART 30 31 - items: 32 - enum: 33 - renesas,scif-r8a7742 # RZ/G1H 34 - renesas,scif-r8a7743 # RZ/G1M 35 - renesas,scif-r8a7744 # RZ/G1N 36 - renesas,scif-r8a7745 # RZ/G1E 37 - renesas,scif-r8a77470 # RZ/G1C 38 - renesas,scif-r8a7790 # R-Car H2 39 - renesas,scif-r8a7791 # R-Car M2-W 40 - renesas,scif-r8a7792 # R-Car V2H 41 - renesas,scif-r8a7793 # R-Car M2-N 42 - renesas,scif-r8a7794 # R-Car E2 43 - const: renesas,rcar-gen2-scif # R-Car Gen2 and RZ/G1 44 - const: renesas,scif # generic SCIF compatible UART 45 46 - items: 47 - enum: 48 - renesas,scif-r8a774a1 # RZ/G2M 49 - renesas,scif-r8a774a3 # RZ/G2M v3.0 50 - renesas,scif-r8a774b1 # RZ/G2N 51 - renesas,scif-r8a774c0 # RZ/G2E 52 - renesas,scif-r8a774e1 # RZ/G2H 53 - renesas,scif-r8a7795 # R-Car H3 54 - renesas,scif-r8a7796 # R-Car M3-W 55 - renesas,scif-r8a77961 # R-Car M3-W+ 56 - renesas,scif-r8a77965 # R-Car M3-N 57 - renesas,scif-r8a77970 # R-Car V3M 58 - renesas,scif-r8a77980 # R-Car V3H 59 - renesas,scif-r8a77990 # R-Car E3 60 - renesas,scif-r8a77995 # R-Car D3 61 - const: renesas,rcar-gen3-scif # R-Car Gen3 and RZ/G2 62 - const: renesas,scif # generic SCIF compatible UART 63 64 - items: 65 - enum: 66 - renesas,scif-r8a779a0 # R-Car V3U 67 - renesas,scif-r8a779f0 # R-Car S4-8 68 - renesas,scif-r8a779g0 # R-Car V4H 69 - renesas,scif-r8a779h0 # R-Car V4M 70 - const: renesas,rcar-gen4-scif # R-Car Gen4 71 - const: renesas,scif # generic SCIF compatible UART 72 73 - items: 74 - enum: 75 - renesas,scif-r9a07g044 # RZ/G2{L,LC} 76 77 - items: 78 - enum: 79 - renesas,scif-r9a07g043 # RZ/G2UL and RZ/Five 80 - renesas,scif-r9a07g054 # RZ/V2L 81 - renesas,scif-r9a08g045 # RZ/G3S 82 - const: renesas,scif-r9a07g044 # RZ/G2{L,LC} fallback 83 84 - const: renesas,scif-r9a09g057 # RZ/V2H(P) 85 86 - items: 87 - enum: 88 - renesas,scif-r9a09g047 # RZ/G3E 89 - const: renesas,scif-r9a09g057 # RZ/V2H fallback 90 91 reg: 92 maxItems: 1 93 94 interrupts: 95 oneOf: 96 - items: 97 - description: A combined interrupt 98 - items: 99 - description: Error interrupt 100 - description: Receive buffer full interrupt 101 - description: Transmit buffer empty interrupt 102 - description: Break interrupt 103 - description: Data Ready interrupt 104 - description: Transmit End interrupt 105 - description: Transmit End/Data Ready interrupt 106 - description: Receive buffer full interrupt (EDGE trigger) 107 - description: Transmit buffer empty interrupt (EDGE trigger) 108 minItems: 4 109 110 interrupt-names: 111 minItems: 4 112 items: 113 - const: eri 114 - const: rxi 115 - const: txi 116 - const: bri 117 - const: dri 118 - const: tei 119 - const: tei-dri 120 - const: rxi-edge 121 - const: txi-edge 122 123 clocks: 124 minItems: 1 125 maxItems: 4 126 127 clock-names: 128 minItems: 1 129 maxItems: 4 130 items: 131 enum: 132 - fck # UART functional clock 133 - sck # optional external clock input 134 - brg_int # optional internal clock source for BRG frequency divider 135 - scif_clk # optional external clock source for BRG frequency divider 136 137 power-domains: 138 maxItems: 1 139 140 resets: 141 maxItems: 1 142 143 dmas: 144 minItems: 2 145 maxItems: 4 146 description: 147 Must contain a list of pairs of references to DMA specifiers, one for 148 transmission, and one for reception. 149 150 dma-names: 151 minItems: 2 152 maxItems: 4 153 items: 154 enum: 155 - tx 156 - rx 157 158required: 159 - compatible 160 - reg 161 - interrupts 162 - clocks 163 - clock-names 164 - power-domains 165 166allOf: 167 - $ref: serial.yaml# 168 169 - if: 170 properties: 171 compatible: 172 contains: 173 enum: 174 - renesas,rcar-gen2-scif 175 - renesas,rcar-gen3-scif 176 - renesas,rcar-gen4-scif 177 - renesas,scif-r9a07g044 178 - renesas,scif-r9a09g057 179 then: 180 required: 181 - resets 182 183 - if: 184 properties: 185 compatible: 186 contains: 187 enum: 188 - renesas,rcar-gen1-scif 189 - renesas,rcar-gen2-scif 190 - renesas,rcar-gen3-scif 191 - renesas,rcar-gen4-scif 192 then: 193 properties: 194 interrupts: 195 maxItems: 1 196 197 interrupt-names: false 198 else: 199 required: 200 - interrupt-names 201 202 - if: 203 properties: 204 compatible: 205 contains: 206 enum: 207 - renesas,scif-r7s72100 208 then: 209 properties: 210 interrupts: 211 minItems: 4 212 maxItems: 4 213 214 interrupt-names: 215 maxItems: 4 216 217 - if: 218 properties: 219 compatible: 220 contains: 221 enum: 222 - renesas,scif-r7s9210 223 - renesas,scif-r9a07g044 224 then: 225 properties: 226 interrupts: 227 minItems: 6 228 maxItems: 6 229 230 interrupt-names: 231 minItems: 6 232 maxItems: 6 233 234 - if: 235 properties: 236 compatible: 237 contains: 238 const: renesas,scif-r9a09g057 239 then: 240 properties: 241 clocks: 242 maxItems: 1 243 244 clock-names: 245 maxItems: 1 246 247 interrupts: 248 minItems: 9 249 250 interrupt-names: 251 minItems: 9 252 253unevaluatedProperties: false 254 255examples: 256 - | 257 #include <dt-bindings/clock/r8a7791-cpg-mssr.h> 258 #include <dt-bindings/interrupt-controller/arm-gic.h> 259 #include <dt-bindings/power/r8a7791-sysc.h> 260 aliases { 261 serial0 = &scif0; 262 }; 263 264 scif0: serial@e6e60000 { 265 compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif", 266 "renesas,scif"; 267 reg = <0xe6e60000 64>; 268 interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>; 269 clocks = <&cpg CPG_MOD 721>, <&cpg CPG_CORE R8A7791_CLK_ZS>, 270 <&scif_clk>; 271 clock-names = "fck", "brg_int", "scif_clk"; 272 dmas = <&dmac0 0x29>, <&dmac0 0x2a>, <&dmac1 0x29>, <&dmac1 0x2a>; 273 dma-names = "tx", "rx", "tx", "rx"; 274 power-domains = <&sysc R8A7791_PD_ALWAYS_ON>; 275 resets = <&cpg 721>; 276 }; 277