Kernel-3.10.0-957.el7_fsl,imx53-pinctrl

  • Freescale IMX53 IOMUX Controller

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

Required properties:

  • compatible: “fsl,imx53-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 imx53 datasheet for the valid pad
    config settings.

CONFIG bits definition:
PAD_CTL_HVE (1 << 13)
PAD_CTL_HYS (1 << 8)
PAD_CTL_PKE (1 << 7)
PAD_CTL_PUE (1 << 6)
PAD_CTL_PUS_100K_DOWN (0 << 4)
PAD_CTL_PUS_47K_UP (1 << 4)
PAD_CTL_PUS_100K_UP (2 << 4)
PAD_CTL_PUS_22K_UP (3 << 4)
PAD_CTL_ODE (1 << 3)
PAD_CTL_DSE_LOW (0 << 1)
PAD_CTL_DSE_MED (1 << 1)
PAD_CTL_DSE_HIGH (2 << 1)
PAD_CTL_DSE_MAX (3 << 1)
PAD_CTL_SRE_FAST (1 << 0)
PAD_CTL_SRE_SLOW (0 << 0)

Refer to imx53-pinfunc.h in device tree source folder for all available
imx53 PIN_FUNC_ID.