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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/pinctrl/renesas,r9a09g077-pinctrl.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Renesas RZ/T2H and RZ/N2H Pin and GPIO controller |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> |
| 11 | + |
| 12 | +description: |
| 13 | + The Renesas RZ/T2H and RZ/N2H SoCs feature a combined Pin and GPIO controller. |
| 14 | + Pin multiplexing and GPIO configuration are performed on a per-pin basis. |
| 15 | + Each port supports up to 8 pins, each configurable for either GPIO (port mode) |
| 16 | + or alternate function mode. Each pin supports function mode values ranging from |
| 17 | + 0x0 to 0x2A, allowing selection from up to 43 different functions. |
| 18 | + |
| 19 | +properties: |
| 20 | + compatible: |
| 21 | + enum: |
| 22 | + - renesas,r9a09g077-pinctrl # RZ/T2H |
| 23 | + - renesas,r9a09g087-pinctrl # RZ/N2H |
| 24 | + |
| 25 | + reg: |
| 26 | + minItems: 1 |
| 27 | + items: |
| 28 | + - description: Non-safety I/O Port base |
| 29 | + - description: Safety I/O Port safety region base |
| 30 | + - description: Safety I/O Port Non-safety region base |
| 31 | + |
| 32 | + reg-names: |
| 33 | + minItems: 1 |
| 34 | + items: |
| 35 | + - const: nsr |
| 36 | + - const: srs |
| 37 | + - const: srn |
| 38 | + |
| 39 | + gpio-controller: true |
| 40 | + |
| 41 | + '#gpio-cells': |
| 42 | + const: 2 |
| 43 | + description: |
| 44 | + The first cell contains the global GPIO port index, constructed using the |
| 45 | + RZT2H_GPIO() helper macro from <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h> |
| 46 | + (e.g. "RZT2H_GPIO(3, 0)" for P03_0). The second cell represents the consumer |
| 47 | + flag. Use the macros defined in include/dt-bindings/gpio/gpio.h. |
| 48 | + |
| 49 | + gpio-ranges: |
| 50 | + maxItems: 1 |
| 51 | + |
| 52 | + clocks: |
| 53 | + maxItems: 1 |
| 54 | + |
| 55 | + power-domains: |
| 56 | + maxItems: 1 |
| 57 | + |
| 58 | +definitions: |
| 59 | + renesas-rzt2h-n2h-pins-node: |
| 60 | + type: object |
| 61 | + allOf: |
| 62 | + - $ref: pincfg-node.yaml# |
| 63 | + - $ref: pinmux-node.yaml# |
| 64 | + properties: |
| 65 | + pinmux: |
| 66 | + description: |
| 67 | + Values are constructed from I/O port number, pin number, and |
| 68 | + alternate function configuration number using the RZT2H_PORT_PINMUX() |
| 69 | + helper macro from <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h>. |
| 70 | + pins: true |
| 71 | + phandle: true |
| 72 | + input: true |
| 73 | + input-enable: true |
| 74 | + output-enable: true |
| 75 | + oneOf: |
| 76 | + - required: [pinmux] |
| 77 | + - required: [pins] |
| 78 | + additionalProperties: false |
| 79 | + |
| 80 | +patternProperties: |
| 81 | + # Grouping nodes: allow multiple "-pins" subnodes within a "-group" |
| 82 | + '.*-group$': |
| 83 | + type: object |
| 84 | + description: |
| 85 | + Pin controller client devices can organize pin configuration entries into |
| 86 | + grouping nodes ending in "-group". These group nodes may contain multiple |
| 87 | + child nodes each ending in "-pins" to configure distinct sets of pins. |
| 88 | + additionalProperties: false |
| 89 | + patternProperties: |
| 90 | + '-pins$': |
| 91 | + $ref: '#/definitions/renesas-rzt2h-n2h-pins-node' |
| 92 | + |
| 93 | + # Standalone "-pins" nodes under client devices or groups |
| 94 | + '-pins$': |
| 95 | + $ref: '#/definitions/renesas-rzt2h-n2h-pins-node' |
| 96 | + |
| 97 | + '-hog$': |
| 98 | + type: object |
| 99 | + description: GPIO hog node |
| 100 | + properties: |
| 101 | + gpio-hog: true |
| 102 | + gpios: true |
| 103 | + input: true |
| 104 | + output-high: true |
| 105 | + output-low: true |
| 106 | + line-name: true |
| 107 | + required: |
| 108 | + - gpio-hog |
| 109 | + - gpios |
| 110 | + additionalProperties: false |
| 111 | + |
| 112 | +allOf: |
| 113 | + - $ref: pinctrl.yaml# |
| 114 | + |
| 115 | +required: |
| 116 | + - compatible |
| 117 | + - reg |
| 118 | + - reg-names |
| 119 | + - gpio-controller |
| 120 | + - '#gpio-cells' |
| 121 | + - gpio-ranges |
| 122 | + - clocks |
| 123 | + - power-domains |
| 124 | + |
| 125 | +unevaluatedProperties: false |
| 126 | + |
| 127 | +examples: |
| 128 | + - | |
| 129 | + #include <dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h> |
| 130 | + #include <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h> |
| 131 | +
|
| 132 | + pinctrl@802c0000 { |
| 133 | + compatible = "renesas,r9a09g077-pinctrl"; |
| 134 | + reg = <0x802c0000 0x2000>, |
| 135 | + <0x812c0000 0x2000>, |
| 136 | + <0x802b0000 0x2000>; |
| 137 | + reg-names = "nsr", "srs", "srn"; |
| 138 | + clocks = <&cpg CPG_CORE R9A09G077_CLK_PCLKM>; |
| 139 | + gpio-controller; |
| 140 | + #gpio-cells = <2>; |
| 141 | + gpio-ranges = <&pinctrl 0 0 288>; |
| 142 | + power-domains = <&cpg>; |
| 143 | +
|
| 144 | + serial0-pins { |
| 145 | + pinmux = <RZT2H_PORT_PINMUX(38, 0, 1)>, /* Tx */ |
| 146 | + <RZT2H_PORT_PINMUX(38, 1, 1)>; /* Rx */ |
| 147 | + }; |
| 148 | +
|
| 149 | + sd1-pwr-en-hog { |
| 150 | + gpio-hog; |
| 151 | + gpios = <RZT2H_GPIO(39, 2) 0>; |
| 152 | + output-high; |
| 153 | + line-name = "sd1_pwr_en"; |
| 154 | + }; |
| 155 | +
|
| 156 | + i2c0-pins { |
| 157 | + pins = "RIIC0_SDA", "RIIC0_SCL"; |
| 158 | + input-enable; |
| 159 | + }; |
| 160 | +
|
| 161 | + sd0-sd-group { |
| 162 | + ctrl-pins { |
| 163 | + pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>, /* SD0_CLK */ |
| 164 | + <RZT2H_PORT_PINMUX(12, 1, 0x29)>; /* SD0_CMD */ |
| 165 | + }; |
| 166 | +
|
| 167 | + data-pins { |
| 168 | + pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>, /* SD0_CLK */ |
| 169 | + <RZT2H_PORT_PINMUX(12, 1, 0x29)>; /* SD0_CMD */ |
| 170 | + }; |
| 171 | + }; |
| 172 | + }; |
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