xref: /openbmc/linux/Documentation/devicetree/bindings/pinctrl/fsl,imx50-pinctrl.txt (revision 597473720f4dc69749542bfcfed4a927a43d935e)
1*dcab7788SJonathan Neuschäfer* Freescale IMX50 IOMUX Controller
2*dcab7788SJonathan Neuschäfer
3*dcab7788SJonathan NeuschäferPlease refer to fsl,imx-pinctrl.txt in this directory for common binding part
4*dcab7788SJonathan Neuschäferand usage.
5*dcab7788SJonathan Neuschäfer
6*dcab7788SJonathan NeuschäferRequired properties:
7*dcab7788SJonathan Neuschäfer- compatible: "fsl,imx50-iomuxc"
8*dcab7788SJonathan Neuschäfer- fsl,pins: two integers array, represents a group of pins mux and config
9*dcab7788SJonathan Neuschäfer  setting. The format is fsl,pins = <PIN_FUNC_ID CONFIG>, PIN_FUNC_ID is a
10*dcab7788SJonathan Neuschäfer  pin working on a specific function, CONFIG is the pad setting value like
11*dcab7788SJonathan Neuschäfer  pull-up for this pin. Please refer to imx50 datasheet for the valid pad
12*dcab7788SJonathan Neuschäfer  config settings.
13*dcab7788SJonathan Neuschäfer
14*dcab7788SJonathan NeuschäferCONFIG bits definition:
15*dcab7788SJonathan NeuschäferPAD_CTL_HVE			(1 << 13)
16*dcab7788SJonathan NeuschäferPAD_CTL_HYS			(1 << 8)
17*dcab7788SJonathan NeuschäferPAD_CTL_PKE			(1 << 7)
18*dcab7788SJonathan NeuschäferPAD_CTL_PUE			(1 << 6)
19*dcab7788SJonathan NeuschäferPAD_CTL_PUS_100K_DOWN		(0 << 4)
20*dcab7788SJonathan NeuschäferPAD_CTL_PUS_47K_UP		(1 << 4)
21*dcab7788SJonathan NeuschäferPAD_CTL_PUS_100K_UP		(2 << 4)
22*dcab7788SJonathan NeuschäferPAD_CTL_PUS_22K_UP		(3 << 4)
23*dcab7788SJonathan NeuschäferPAD_CTL_ODE			(1 << 3)
24*dcab7788SJonathan NeuschäferPAD_CTL_DSE_LOW			(0 << 1)
25*dcab7788SJonathan NeuschäferPAD_CTL_DSE_MED			(1 << 1)
26*dcab7788SJonathan NeuschäferPAD_CTL_DSE_HIGH		(2 << 1)
27*dcab7788SJonathan NeuschäferPAD_CTL_DSE_MAX			(3 << 1)
28*dcab7788SJonathan NeuschäferPAD_CTL_SRE_FAST		(1 << 0)
29*dcab7788SJonathan NeuschäferPAD_CTL_SRE_SLOW		(0 << 0)
30*dcab7788SJonathan Neuschäfer
31*dcab7788SJonathan NeuschäferRefer to imx50-pinfunc.h in device tree source folder for all available
32*dcab7788SJonathan Neuschäferimx50 PIN_FUNC_ID.
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