| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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,hscif.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Renesas High Speed Serial Communication Interface with FIFO (HSCIF) |
| 8 | |
| 9 | maintainers: |
| 10 | - Geert Uytterhoeven <geert+renesas@glider.be> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: serial.yaml# |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | oneOf: |
| 18 | - items: |
| 19 | - enum: |
| 20 | - renesas,hscif-r8a7778 # R-Car M1 |
| 21 | - renesas,hscif-r8a7779 # R-Car H1 |
| 22 | - const: renesas,rcar-gen1-hscif # R-Car Gen1 |
| 23 | - const: renesas,hscif # generic HSCIF compatible UART |
| 24 | |
| 25 | - items: |
| 26 | - enum: |
| 27 | - renesas,hscif-r8a7742 # RZ/G1H |
| 28 | - renesas,hscif-r8a7743 # RZ/G1M |
| 29 | - renesas,hscif-r8a7744 # RZ/G1N |
| 30 | - renesas,hscif-r8a7745 # RZ/G1E |
| 31 | - renesas,hscif-r8a77470 # RZ/G1C |
| 32 | - renesas,hscif-r8a7790 # R-Car H2 |
| 33 | - renesas,hscif-r8a7791 # R-Car M2-W |
| 34 | - renesas,hscif-r8a7792 # R-Car V2H |
| 35 | - renesas,hscif-r8a7793 # R-Car M2-N |
| 36 | - renesas,hscif-r8a7794 # R-Car E2 |
| 37 | - const: renesas,rcar-gen2-hscif # R-Car Gen2 and RZ/G1 |
| 38 | - const: renesas,hscif # generic HSCIF compatible UART |
| 39 | |
| 40 | - items: |
| 41 | - enum: |
| 42 | - renesas,hscif-r8a774a1 # RZ/G2M |
| 43 | - renesas,hscif-r8a774b1 # RZ/G2N |
| 44 | - renesas,hscif-r8a774c0 # RZ/G2E |
| 45 | - renesas,hscif-r8a774e1 # RZ/G2H |
| 46 | - renesas,hscif-r8a7795 # R-Car H3 |
| 47 | - renesas,hscif-r8a7796 # R-Car M3-W |
| 48 | - renesas,hscif-r8a77961 # R-Car M3-W+ |
| 49 | - renesas,hscif-r8a77965 # R-Car M3-N |
| 50 | - renesas,hscif-r8a77970 # R-Car V3M |
| 51 | - renesas,hscif-r8a77980 # R-Car V3H |
| 52 | - renesas,hscif-r8a77990 # R-Car E3 |
| 53 | - renesas,hscif-r8a77995 # R-Car D3 |
| 54 | - const: renesas,rcar-gen3-hscif # R-Car Gen3 and RZ/G2 |
| 55 | - const: renesas,hscif # generic HSCIF compatible UART |
| 56 | |
| 57 | - items: |
| 58 | - enum: |
| 59 | - renesas,hscif-r8a779a0 # R-Car V3U |
| 60 | - renesas,hscif-r8a779f0 # R-Car S4-8 |
| 61 | - renesas,hscif-r8a779g0 # R-Car V4H |
| 62 | - const: renesas,rcar-gen4-hscif # R-Car Gen4 |
| 63 | - const: renesas,hscif # generic HSCIF compatible UART |
| 64 | |
| 65 | reg: |
| 66 | maxItems: 1 |
| 67 | |
| 68 | interrupts: |
| 69 | maxItems: 1 |
| 70 | |
| 71 | clocks: |
| 72 | minItems: 1 |
| 73 | maxItems: 4 |
| 74 | |
| 75 | clock-names: |
| 76 | minItems: 1 |
| 77 | maxItems: 4 |
| 78 | items: |
| 79 | enum: |
| 80 | - fck # UART functional clock |
| 81 | - hsck # optional external clock input |
| 82 | - brg_int # optional internal clock source for BRG frequency divider |
| 83 | - scif_clk # optional external clock source for BRG frequency divider |
| 84 | |
| 85 | power-domains: |
| 86 | maxItems: 1 |
| 87 | |
| 88 | resets: |
| 89 | maxItems: 1 |
| 90 | |
| 91 | dmas: |
| 92 | minItems: 2 |
| 93 | maxItems: 4 |
| 94 | description: |
| 95 | Must contain a list of pairs of references to DMA specifiers, one for |
| 96 | transmission, and one for reception. |
| 97 | |
| 98 | dma-names: |
| 99 | minItems: 2 |
| 100 | maxItems: 4 |
| 101 | items: |
| 102 | enum: |
| 103 | - tx |
| 104 | - rx |
| 105 | |
| 106 | required: |
| 107 | - compatible |
| 108 | - reg |
| 109 | - interrupts |
| 110 | - clocks |
| 111 | - clock-names |
| 112 | - power-domains |
| 113 | |
| 114 | if: |
| 115 | properties: |
| 116 | compatible: |
| 117 | contains: |
| 118 | enum: |
| 119 | - renesas,rcar-gen2-hscif |
| 120 | - renesas,rcar-gen3-hscif |
| 121 | - renesas,rcar-gen4-hscif |
| 122 | then: |
| 123 | required: |
| 124 | - resets |
| 125 | |
| 126 | unevaluatedProperties: false |
| 127 | |
| 128 | examples: |
| 129 | - | |
| 130 | #include <dt-bindings/clock/r8a7795-cpg-mssr.h> |
| 131 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 132 | #include <dt-bindings/power/r8a7795-sysc.h> |
| 133 | aliases { |
| 134 | serial1 = &hscif1; |
| 135 | }; |
| 136 | |
| 137 | hscif1: serial@e6550000 { |
| 138 | compatible = "renesas,hscif-r8a7795", "renesas,rcar-gen3-hscif", |
| 139 | "renesas,hscif"; |
| 140 | reg = <0xe6550000 96>; |
| 141 | interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>; |
| 142 | clocks = <&cpg CPG_MOD 519>, <&cpg CPG_CORE R8A7795_CLK_S3D1>, |
| 143 | <&scif_clk>; |
| 144 | clock-names = "fck", "brg_int", "scif_clk"; |
| 145 | dmas = <&dmac1 0x33>, <&dmac1 0x32>, <&dmac2 0x33>, <&dmac2 0x32>; |
| 146 | dma-names = "tx", "rx", "tx", "rx"; |
| 147 | power-domains = <&sysc R8A7795_PD_ALWAYS_ON>; |
| 148 | resets = <&cpg 519>; |
| 149 | uart-has-rtscts; |
| 150 | }; |