1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/pinctrl/ren 4 $id: http://devicetree.org/schemas/pinctrl/renesas,rzn1-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Renesas RZ/N1 Pin Controller 7 title: Renesas RZ/N1 Pin Controller
8 8
9 maintainers: 9 maintainers:
10 - Fabrizio Castro <fabrizio.castro.jz@renesas 10 - Fabrizio Castro <fabrizio.castro.jz@renesas.com>
11 - Geert Uytterhoeven <geert+renesas@glider.be 11 - Geert Uytterhoeven <geert+renesas@glider.be>
12 12
13 properties: 13 properties:
14 compatible: 14 compatible:
15 items: 15 items:
16 - enum: 16 - enum:
17 - renesas,r9a06g032-pinctrl # RZ/N1D 17 - renesas,r9a06g032-pinctrl # RZ/N1D
18 - renesas,r9a06g033-pinctrl # RZ/N1S 18 - renesas,r9a06g033-pinctrl # RZ/N1S
19 - const: renesas,rzn1-pinctrl # Generi 19 - const: renesas,rzn1-pinctrl # Generic RZ/N1
20 20
21 reg: 21 reg:
22 items: 22 items:
23 - description: GPIO Multiplexing Level1 23 - description: GPIO Multiplexing Level1 Register Block
24 - description: GPIO Multiplexing Level2 24 - description: GPIO Multiplexing Level2 Register Block
25 25
26 clocks: 26 clocks:
27 maxItems: 1 27 maxItems: 1
28 28
29 clock-names: 29 clock-names:
30 const: bus 30 const: bus
31 description: 31 description:
32 The bus clock, sometimes described as pc 32 The bus clock, sometimes described as pclk, for register accesses.
33 33
34 allOf: 34 allOf:
35 - $ref: pinctrl.yaml# 35 - $ref: pinctrl.yaml#
36 36
37 required: 37 required:
38 - compatible 38 - compatible
39 - reg 39 - reg
40 - clocks 40 - clocks
41 - clock-names 41 - clock-names
42 42
43 additionalProperties: 43 additionalProperties:
44 anyOf: 44 anyOf:
45 - type: object 45 - type: object
46 allOf: 46 allOf:
47 - $ref: pincfg-node.yaml# 47 - $ref: pincfg-node.yaml#
48 - $ref: pinmux-node.yaml# 48 - $ref: pinmux-node.yaml#
49 49
50 description: 50 description:
51 A pin multiplexing sub-node describes 51 A pin multiplexing sub-node describes how to configure a set of (or a
52 single) pin in some desired alternate 52 single) pin in some desired alternate function mode.
53 A single sub-node may define several p 53 A single sub-node may define several pin configurations.
54 54
55 properties: 55 properties:
56 pinmux: 56 pinmux:
57 description: | 57 description: |
58 Integer array representing pin num 58 Integer array representing pin number and pin multiplexing
59 configuration. 59 configuration.
60 When a pin has to be configured in 60 When a pin has to be configured in alternate function mode, use
61 this property to identify the pin 61 this property to identify the pin by its global index, and provide
62 its alternate function configurati 62 its alternate function configuration number along with it.
63 When multiple pins are required to 63 When multiple pins are required to be configured as part of the
64 same alternate function they shall 64 same alternate function they shall be specified as members of the
65 same argument list of a single "pi 65 same argument list of a single "pinmux" property.
66 Integers values in the "pinmux" ar 66 Integers values in the "pinmux" argument list are assembled as:
67 (PIN | MUX_FUNC << 8) 67 (PIN | MUX_FUNC << 8)
68 where PIN directly corresponds to 68 where PIN directly corresponds to the pl_gpio pin number and
69 MUX_FUNC is one of the alternate f 69 MUX_FUNC is one of the alternate function identifiers defined in:
70 <include/dt-bindings/pinctrl/rzn1- 70 <include/dt-bindings/pinctrl/rzn1-pinctrl.h>
71 These identifiers collapse the IO 71 These identifiers collapse the IO Multiplex Configuration Level 1
72 and Level 2 numbers that are detai 72 and Level 2 numbers that are detailed in the hardware reference
73 manual into a single number. The i 73 manual into a single number. The identifiers for Level 2 are simply
74 offset by 10. Additional identifi 74 offset by 10. Additional identifiers are provided to specify the
75 MDIO source peripheral. 75 MDIO source peripheral.
76 76
77 bias-disable: true 77 bias-disable: true
78 bias-pull-up: 78 bias-pull-up:
79 description: Pull up the pin with 50 79 description: Pull up the pin with 50 kOhm
80 bias-pull-down: 80 bias-pull-down:
81 description: Pull down the pin with 81 description: Pull down the pin with 50 kOhm
82 bias-high-impedance: true 82 bias-high-impedance: true
83 drive-strength: 83 drive-strength:
84 enum: [ 4, 6, 8, 12 ] 84 enum: [ 4, 6, 8, 12 ]
85 85
86 required: 86 required:
87 - pinmux 87 - pinmux
88 88
89 additionalProperties: 89 additionalProperties:
90 $ref: "#/additionalProperties/anyOf/0" 90 $ref: "#/additionalProperties/anyOf/0"
91 91
92 - type: object 92 - type: object
93 additionalProperties: 93 additionalProperties:
94 $ref: "#/additionalProperties/anyOf/0" 94 $ref: "#/additionalProperties/anyOf/0"
95 95
96 examples: 96 examples:
97 - | 97 - |
98 #include <dt-bindings/clock/r9a06g032-sysc 98 #include <dt-bindings/clock/r9a06g032-sysctrl.h>
99 #include <dt-bindings/pinctrl/rzn1-pinctrl 99 #include <dt-bindings/pinctrl/rzn1-pinctrl.h>
100 pinctrl: pinctrl@40067000 { 100 pinctrl: pinctrl@40067000 {
101 compatible = "renesas,r9a06g032-pi 101 compatible = "renesas,r9a06g032-pinctrl", "renesas,rzn1-pinctrl";
102 reg = <0x40067000 0x1000>, <0x5100 102 reg = <0x40067000 0x1000>, <0x51000000 0x480>;
103 clocks = <&sysctrl R9A06G032_HCLK_ 103 clocks = <&sysctrl R9A06G032_HCLK_PINCONFIG>;
104 clock-names = "bus"; 104 clock-names = "bus";
105 105
106 /* 106 /*
107 * A serial communication interfac 107 * A serial communication interface with a TX output pin and an RX
108 * input pin. 108 * input pin.
109 */ 109 */
110 pins_uart0: pins_uart0 { 110 pins_uart0: pins_uart0 {
111 pinmux = < 111 pinmux = <
112 RZN1_PINMUX(103, R 112 RZN1_PINMUX(103, RZN1_FUNC_UART0_I) /* UART0_TXD */
113 RZN1_PINMUX(104, R 113 RZN1_PINMUX(104, RZN1_FUNC_UART0_I) /* UART0_RXD */
114 >; 114 >;
115 }; 115 };
116 116
117 /* 117 /*
118 * Set the pull-up on the RXD pin 118 * Set the pull-up on the RXD pin of the UART.
119 */ 119 */
120 pins_uart0_alt: pins_uart0_alt { 120 pins_uart0_alt: pins_uart0_alt {
121 pinmux = <RZN1_PINMUX(103, 121 pinmux = <RZN1_PINMUX(103, RZN1_FUNC_UART0_I)>;
122 122
123 pins_uart6_rx { 123 pins_uart6_rx {
124 pinmux = <RZN1_PIN 124 pinmux = <RZN1_PINMUX(104, RZN1_FUNC_UART0_I)>;
125 bias-pull-up; 125 bias-pull-up;
126 }; 126 };
127 }; 127 };
128 }; 128 };
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