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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /Documentation/devicetree/bindings/pinctrl/fsl,imx6ul-pinctrl.txt
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
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Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+* Freescale i.MX6 UltraLite IOMUX Controller
+
+Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
+and usage.
+
+Required properties:
+- compatible: "fsl,imx6ul-iomuxc" for main IOMUX controller or
+ "fsl,imx6ull-iomuxc-snvs" for i.MX 6ULL's SNVS IOMUX controller.
+- 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
+ imx6ul-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.MX6 UltraLite
+ Reference Manual for detailed CONFIG settings.
+
+CONFIG bits definition:
+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 (0 << 6)
+PAD_CTL_SPEED_MED (1 << 6)
+PAD_CTL_SPEED_HIGH (3 << 6)
+PAD_CTL_DSE_DISABLE (0 << 3)
+PAD_CTL_DSE_260ohm (1 << 3)
+PAD_CTL_DSE_130ohm (2 << 3)
+PAD_CTL_DSE_87ohm (3 << 3)
+PAD_CTL_DSE_65ohm (4 << 3)
+PAD_CTL_DSE_52ohm (5 << 3)
+PAD_CTL_DSE_43ohm (6 << 3)
+PAD_CTL_DSE_37ohm (7 << 3)
+PAD_CTL_SRE_FAST (1 << 0)
+PAD_CTL_SRE_SLOW (0 << 0)