1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2# Copyright 2022 NXP 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/pinctrl/nxp,s32g2-siul2-pinctrl.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: NXP S32G2 pin controller 9 10maintainers: 11 - Ghennadi Procopciuc <Ghennadi.Procopciuc@oss.nxp.com> 12 - Chester Lin <clin@suse.com> 13 14description: | 15 S32G2 pinmux is implemented in SIUL2 (System Integration Unit Lite2), 16 whose memory map is split into two regions: 17 SIUL2_0 @ 0x4009c000 18 SIUL2_1 @ 0x44010000 19 20 Every SIUL2 region has multiple register types, and here only MSCR and 21 IMCR registers need to be revealed for kernel to configure pinmux. 22 23 Please note that some register indexes are reserved in S32G2, such as 24 MSCR102-MSCR111, MSCR123-MSCR143, IMCR84-IMCR118 and IMCR398-IMCR429. 25 26properties: 27 compatible: 28 enum: 29 - nxp,s32g2-siul2-pinctrl 30 31 reg: 32 description: | 33 A list of MSCR/IMCR register regions to be reserved. 34 - MSCR (Multiplexed Signal Configuration Register) 35 An MSCR register can configure the associated pin as either a GPIO pin 36 or a function output pin depends on the selected signal source. 37 - IMCR (Input Multiplexed Signal Configuration Register) 38 An IMCR register can configure the associated pin as function input 39 pin depends on the selected signal source. 40 items: 41 - description: MSCR registers group 0 in SIUL2_0 42 - description: MSCR registers group 1 in SIUL2_1 43 - description: MSCR registers group 2 in SIUL2_1 44 - description: IMCR registers group 0 in SIUL2_0 45 - description: IMCR registers group 1 in SIUL2_1 46 - description: IMCR registers group 2 in SIUL2_1 47 48patternProperties: 49 '-pins$': 50 type: object 51 additionalProperties: false 52 53 patternProperties: 54 '-grp[0-9]$': 55 type: object 56 allOf: 57 - $ref: pinmux-node.yaml# 58 - $ref: pincfg-node.yaml# 59 description: | 60 Pinctrl node's client devices specify pin muxes using subnodes, 61 which in turn use the standard properties below. 62 63 properties: 64 bias-disable: true 65 bias-high-impedance: true 66 bias-pull-up: true 67 bias-pull-down: true 68 drive-open-drain: true 69 input-enable: true 70 output-enable: true 71 72 pinmux: 73 description: | 74 An integer array for representing pinmux configurations of 75 a device. Each integer consists of a PIN_ID and a 4-bit 76 selected signal source(SSS) as IOMUX setting, which is 77 calculated as: pinmux = (PIN_ID << 4 | SSS) 78 79 slew-rate: 80 description: Supported slew rate based on Fmax values (MHz) 81 enum: [83, 133, 150, 166, 208] 82 83 additionalProperties: false 84 85required: 86 - compatible 87 - reg 88 89additionalProperties: false 90 91examples: 92 - | 93 pinctrl@4009c240 { 94 compatible = "nxp,s32g2-siul2-pinctrl"; 95 96 /* MSCR0-MSCR101 registers on siul2_0 */ 97 reg = <0x4009c240 0x198>, 98 /* MSCR112-MSCR122 registers on siul2_1 */ 99 <0x44010400 0x2c>, 100 /* MSCR144-MSCR190 registers on siul2_1 */ 101 <0x44010480 0xbc>, 102 /* IMCR0-IMCR83 registers on siul2_0 */ 103 <0x4009ca40 0x150>, 104 /* IMCR119-IMCR397 registers on siul2_1 */ 105 <0x44010c1c 0x45c>, 106 /* IMCR430-IMCR495 registers on siul2_1 */ 107 <0x440110f8 0x108>; 108 109 llce-can0-pins { 110 llce-can0-grp0 { 111 pinmux = <0x2b0>; 112 input-enable; 113 slew-rate = <208>; 114 }; 115 116 llce-can0-grp1 { 117 pinmux = <0x2c2>; 118 output-enable; 119 slew-rate = <208>; 120 }; 121 }; 122 }; 123... 124