The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/pinctrl/fsl,imx6ul-pinctrl.txt

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    1 * Freescale i.MX6 UltraLite IOMUX Controller
    2 
    3 Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
    4 and usage.
    5 
    6 Required properties:
    7 - compatible: "fsl,imx6ul-iomuxc" for main IOMUX controller or
    8   "fsl,imx6ull-iomuxc-snvs" for i.MX 6ULL's SNVS IOMUX controller.
    9 - fsl,pins: each entry consists of 6 integers and represents the mux and config
   10   setting for one pin.  The first 5 integers <mux_reg conf_reg input_reg mux_val
   11   input_val> are specified using a PIN_FUNC_ID macro, which can be found in
   12   imx6ul-pinfunc.h under device tree source folder.  The last integer CONFIG is
   13   the pad setting value like pull-up on this pin.  Please refer to i.MX6 UltraLite
   14   Reference Manual for detailed CONFIG settings.
   15 
   16 CONFIG bits definition:
   17 PAD_CTL_HYS                     (1 << 16)
   18 PAD_CTL_PUS_100K_DOWN           (0 << 14)
   19 PAD_CTL_PUS_47K_UP              (1 << 14)
   20 PAD_CTL_PUS_100K_UP             (2 << 14)
   21 PAD_CTL_PUS_22K_UP              (3 << 14)
   22 PAD_CTL_PUE                     (1 << 13)
   23 PAD_CTL_PKE                     (1 << 12)
   24 PAD_CTL_ODE                     (1 << 11)
   25 PAD_CTL_SPEED_LOW               (0 << 6)
   26 PAD_CTL_SPEED_MED               (1 << 6)
   27 PAD_CTL_SPEED_HIGH              (3 << 6)
   28 PAD_CTL_DSE_DISABLE             (0 << 3)
   29 PAD_CTL_DSE_260ohm              (1 << 3)
   30 PAD_CTL_DSE_130ohm              (2 << 3)
   31 PAD_CTL_DSE_87ohm               (3 << 3)
   32 PAD_CTL_DSE_65ohm               (4 << 3)
   33 PAD_CTL_DSE_52ohm               (5 << 3)
   34 PAD_CTL_DSE_43ohm               (6 << 3)
   35 PAD_CTL_DSE_37ohm               (7 << 3)
   36 PAD_CTL_SRE_FAST                (1 << 0)
   37 PAD_CTL_SRE_SLOW                (0 << 0)

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