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Commit 21e59123 authored by Shawn Guo's avatar Shawn Guo
Browse files

pinctrl: add pinctrl driver for imx6sl 



Add a pinctrl driver for i.MX6 SoloLite based on pinctrl-imx core
driver.

Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 3f551d6a

Documentation/devicetree/bindings/pinctrl/fsl,imx6sl-pinctrl.txt

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* Freescale IMX6 SoloLite IOMUX Controller



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

and usage.



Required properties:

- compatible: "fsl,imx6sl-iomuxc"

- fsl,pins: two integers array, represents a group of pins mux and config

  setting. The format is fsl,pins = <PIN_FUNC_ID CONFIG>, 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 imx6sl datasheet for the valid pad

  config settings.



CONFIG bits definition:

PAD_CTL_LVE                     (1 << 22)

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 imx6sl-pinfunc.h in device tree source folder for all available

imx6sl PIN_FUNC_ID.