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authorFrank Li <Frank.Li@freescale.com>2015-05-08 01:35:53 +0800
committerShawn Guo <shawn.guo@linaro.org>2015-06-03 15:03:59 +0800
commitef69728f2fe52ec5786c28b1b4fa68689942ad19 (patch)
treea4a12061c20f28857b75aae50d239abc0617df6e /Documentation/devicetree/bindings/pinctrl
parent29eea64c1b8122f6c2f64401cd57bee042052dba (diff)
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Document: dt: binding: imx: update document for imx7d support
This part just add necessary change to boot imx7d. Update clock, pinctrl and gpt for imx7d Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl')
-rw-r--r--Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt27
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diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt
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+* Freescale i.MX7 Dual IOMUX Controller
+
+Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
+and usage.
+
+Required properties:
+- compatible: "fsl,imx7d-iomuxc"
+- fsl,pins: each entry consists of 6 integers and represents the mux and config
+ setting for one pin. The first 5 integers <mux_reg conf_reg input_reg mux_val
+ input_val> are specified using a PIN_FUNC_ID macro, which can be found in
+ imx7d-pinfunc.h under device tree source folder. The last integer CONFIG is
+ the pad setting value like pull-up on this pin. Please refer to i.MX7 Dual
+ Reference Manual for detailed CONFIG settings.
+
+CONFIG bits definition:
+PAD_CTL_PUS_100K_DOWN (0 << 5)
+PAD_CTL_PUS_5K_UP (1 << 5)
+PAD_CTL_PUS_47K_UP (2 << 5)
+PAD_CTL_PUS_100K_UP (3 << 5)
+PAD_CTL_PUE (1 << 4)
+PAD_CTL_HYS (1 << 3)
+PAD_CTL_SRE_SLOW (1 << 2)
+PAD_CTL_SRE_FAST (0 << 2)
+PAD_CTL_DSE_X1 (0 << 0)
+PAD_CTL_DSE_X2 (1 << 0)
+PAD_CTL_DSE_X3 (2 << 0)
+PAD_CTL_DSE_X4 (3 << 0)
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