Kernel-4.18.0-80.el8_fsl,imx6q-pinctrl

  • Freescale IMX6Q IOMUX Controller

Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
and usage.

Required properties:

  • compatible: “fsl,imx6q-iomuxc”
  • fsl,pins: two integers array, represents a group of pins mux and config
    setting. The format is fsl,pins = , PIN_FUNC_ID is a
    pin working on a specific function, CONFIG is the pad setting value like
    pull-up for this pin. Please refer to imx6q datasheet for the valid pad
    config settings.

CONFIG bits definition:
PAD_CTL_HYS (1 << 16)
PAD_CTL_PUS_100K_DOWN (0 << 14)
PAD_CTL_PUS_47K_UP (1 << 14)
PAD_CTL_PUS_100K_UP (2 << 14)
PAD_CTL_PUS_22K_UP (3 << 14)
PAD_CTL_PUE (1 << 13)
PAD_CTL_PKE (1 << 12)
PAD_CTL_ODE (1 << 11)
PAD_CTL_SPEED_LOW (1 << 6)
PAD_CTL_SPEED_MED (2 << 6)
PAD_CTL_SPEED_HIGH (3 << 6)
PAD_CTL_DSE_DISABLE (0 << 3)
PAD_CTL_DSE_240ohm (1 << 3)
PAD_CTL_DSE_120ohm (2 << 3)
PAD_CTL_DSE_80ohm (3 << 3)
PAD_CTL_DSE_60ohm (4 << 3)
PAD_CTL_DSE_48ohm (5 << 3)
PAD_CTL_DSE_40ohm (6 << 3)
PAD_CTL_DSE_34ohm (7 << 3)
PAD_CTL_SRE_FAST (1 << 0)
PAD_CTL_SRE_SLOW (0 << 0)

Refer to imx6q-pinfunc.h in device tree source folder for all available
imx6q PIN_FUNC_ID.