radxa_zero3.yml

#
# Tested on Radxa Zero 3W, running Armbian, Kernel 6.1.75-vendor-rk35xx
#
# Note: Overlays are not packaged with Armbian for some reason. Hopefully this changes soon,
# but I've built the .dtbo files for the kernel given above, and made them available here:
#   https://github.com/vickash/linux-sbc-overlays/tree/master/radxa/rockchip
# To use them, save all the .dtbo files into:
#   /boot/dtb/rockchip/overlay
#
---
pins:
  # Left side (odd numbered)
  # PIN 1 is 3V3
  32: { phy: 3, chip: 1, line: 0 }
  33: { phy: 5, chip: 1, line: 1 }
  116: { phy: 7, chip: 3, line: 20 }
  # PIN 9 is GND
  97: { phy: 11, chip: 3, line: 1 }
  98: { phy: 13, chip: 3, line: 2 }
  104: { phy: 15, chip: 3, line: 8 }
  # PIN 17 is 3V3
  147: { phy: 19, chip: 4, line: 19 }
  149: { phy: 21, chip: 4, line: 21 }
  146: { phy: 23, chip: 4, line: 18 }
  # PIN 25 is GND
  138: { phy: 27, chip: 4, line: 10 }
  107: { phy: 29, chip: 3, line: 11 }
  108: { phy: 31, chip: 3, line: 12 }
  115: { phy: 33, chip: 3, line: 19 }
  100: { phy: 35, chip: 3, line: 4 }
  36: { phy: 37, chip: 1, line: 4 }
  # PIN 39 is GND

  # Right side (even numbered)
  # PIN 2 is 5V
  # PIN 4 is 5V
  # PIN 6 is GND
  24: { phy: 8, chip: 0, line: 24 }
  25: { phy: 10, chip: 0, line: 25 }
  99: { phy: 12, chip: 3, line: 3 }
  # PIN 14 is GND
  105: { phy: 16, chip: 3, line: 9 }
  106: { phy: 18, chip: 3, line: 10 }
  # PIN 20 is GND
  113: { phy: 22, chip: 3, line: 17 }
  150: { phy: 24, chip: 4, line: 22 }
  # PIN 26 is NC
  139: { phy: 28, chip: 4, line: 11 }
  # PIN 30 is GND
  114: { phy: 32, chip: 3, line: 18 }
  # PIN 34 is GND
  103: { phy: 36, chip: 3, line: 7 }
  102: { phy: 38, chip: 3, line: 6 }
  101: { phy: 40, chip: 3, line: 5 }

pwms:
  #
  # Add to overlays= line in /boot/amrbianEnv.txt
  #   pwm8-m0 pwm9-m0
  105:
    pwmchip: 0
    channel: 0
    overlay: pwm8-m0
  106:
    pwmchip: 1
    channel: 0
    overlay: pwm9-m0

i2cs:
  #
  # Add to overlays= line in /boot/amrbianEnv.txt
  #   i2c3-m0
  3:
    scl: 33
    sda: 32
    reserved_addresses: [0x22]
    overlay: i2c3-m0

spis:
  #
  # Add to overlays= line in /boot/amrbianEnv.txt
  #   ispi3-m1-cs0-spidev
  3:
    clk: 146
    mosi: 147
    miso: 149
    cs0: 150
    overlay: spi3-m1-cs0-spidev