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,imx50-pinctrl.txt

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    1 * Freescale IMX50 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,imx50-iomuxc"
    8 - fsl,pins: two integers array, represents a group of pins mux and config
    9   setting. The format is fsl,pins = <PIN_FUNC_ID CONFIG>, PIN_FUNC_ID is a
   10   pin working on a specific function, CONFIG is the pad setting value like
   11   pull-up for this pin. Please refer to imx50 datasheet for the valid pad
   12   config settings.
   13 
   14 CONFIG bits definition:
   15 PAD_CTL_HVE                     (1 << 13)
   16 PAD_CTL_HYS                     (1 << 8)
   17 PAD_CTL_PKE                     (1 << 7)
   18 PAD_CTL_PUE                     (1 << 6)
   19 PAD_CTL_PUS_100K_DOWN           (0 << 4)
   20 PAD_CTL_PUS_47K_UP              (1 << 4)
   21 PAD_CTL_PUS_100K_UP             (2 << 4)
   22 PAD_CTL_PUS_22K_UP              (3 << 4)
   23 PAD_CTL_ODE                     (1 << 3)
   24 PAD_CTL_DSE_LOW                 (0 << 1)
   25 PAD_CTL_DSE_MED                 (1 << 1)
   26 PAD_CTL_DSE_HIGH                (2 << 1)
   27 PAD_CTL_DSE_MAX                 (3 << 1)
   28 PAD_CTL_SRE_FAST                (1 << 0)
   29 PAD_CTL_SRE_SLOW                (0 << 0)
   30 
   31 Refer to imx50-pinfunc.h in device tree source folder for all available
   32 imx50 PIN_FUNC_ID.

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