# Copyright (c) 2023 Joel Guittet
# SPDX-License-Identifier: Apache-2.0

description: |
    GPIO pins exposed on Raspberry Pi 40-pin header.

    The Raspberry Pi layout provides a 2x20 pins header.

    This binding provides a nexus mapping for 28 pins as depicted below.

        -  3V3                  5V               -
        0  GPIO2/I2C1_SDA       5V               -
        1  GPIO3/I2C1_SCL       GND              -
        2  GPIO4                GPIO14/UART0_TXD 3
        -  GND                  GPIO15/UART0_RXD 4
        5  GPIO17               GPIO18           6
        7  GPIO27               GND              -
        8  GPIO22               GPIO23           9
        -  3V3                  GPIO24           10
        11 GPIO10/SPI0_MOSI     GND              -
        12 GPIO9/SPI0_MISO      GPIO25           13
        14 GPIO11/SPI0_SCLK     GPIO8/SPI0_CE0   15
        -  GND                  GPIO7/SPI0_CE1   16
        17 ID_SD/I2C0_SDA       ID_SC/I2C0_SCL   18
        19 GPIO5                GND              -
        20 GPIO6                GPIO12           21
        22 GPIO13               GND              -
        23 GPIO19               GPIO16           24
        25 GPIO26               GPIO20           26
        -  GND                  GPIO21           27


compatible: "raspberrypi-40pins-header"

include: [gpio-nexus.yaml, base.yaml]