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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: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Cc: Dong Aisheng <dong.aisheng@linaro.org> Cc: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
33 lines
1012 B
Plaintext
33 lines
1012 B
Plaintext
* Freescale IMX50 IOMUX Controller
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Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
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and usage.
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Required properties:
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- compatible: "fsl,imx50-iomuxc"
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- fsl,pins: two integers array, represents a group of pins mux and config
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setting. The format is fsl,pins = <PIN_FUNC_ID CONFIG>, PIN_FUNC_ID is a
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pin working on a specific function, CONFIG is the pad setting value like
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pull-up for this pin. Please refer to imx50 datasheet for the valid pad
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config settings.
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CONFIG bits definition:
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PAD_CTL_HVE (1 << 13)
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PAD_CTL_HYS (1 << 8)
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PAD_CTL_PKE (1 << 7)
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PAD_CTL_PUE (1 << 6)
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PAD_CTL_PUS_100K_DOWN (0 << 4)
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PAD_CTL_PUS_47K_UP (1 << 4)
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PAD_CTL_PUS_100K_UP (2 << 4)
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PAD_CTL_PUS_22K_UP (3 << 4)
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PAD_CTL_ODE (1 << 3)
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PAD_CTL_DSE_LOW (0 << 1)
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PAD_CTL_DSE_MED (1 << 1)
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PAD_CTL_DSE_HIGH (2 << 1)
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PAD_CTL_DSE_MAX (3 << 1)
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PAD_CTL_SRE_FAST (1 << 0)
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PAD_CTL_SRE_SLOW (0 << 0)
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Refer to imx50-pinfunc.h in device tree source folder for all available
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imx50 PIN_FUNC_ID.
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