Commit dcab7788 authored by Jonathan Neuschäfer's avatar Jonathan Neuschäfer Committed by Linus Walleij
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dt-bindings: pinctrl: Document the i.MX50 IOMUXC binding 



AFAICS from the i.MX50 Reference Manual, the i.MX50 IOMUXC works the
same as the one in i.MX51, so I copied fsl,imx51-pinctrl.txt and changed
the text to imx50.

Signed-off-by: default avatarJonathan Neuschäfer <j.neuschaefer@gmx.net>
Cc: Dong Aisheng <dong.aisheng@linaro.org>
Cc: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: default avatarFabio Estevam <festevam@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 202ba5eb

Documentation/devicetree/bindings/pinctrl/fsl,imx50-pinctrl.txt

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* Freescale IMX50 IOMUX Controller



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

and usage.



Required properties:

- compatible: "fsl,imx50-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 imx50 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 imx50-pinfunc.h in device tree source folder for all available

imx50 PIN_FUNC_ID.

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