ENGR00298524-4 pinctrl: imx: add pinctrl driver for imx6sx

Add a pinctrl driver for i.MX6 SoloX based on pinctrl-imx core
driver.

Signed-off-by: Anson Huang <b20788@freescale.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx6sx-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx6sx-pinctrl.txt
new file mode 100644
index 000000000000..f2e5cf9c5d62
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx6sx-pinctrl.txt
@@ -0,0 +1,38 @@
+* Freescale IMX6 SoloX IOMUX Controller
+
+Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
+and usage.
+
+Required properties:
+- compatible: "fsl,imx6sx-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 imx6sx datasheet for the valid pad
+  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               (1 << 6)
+PAD_CTL_SPEED_MED               (2 << 6)
+PAD_CTL_SPEED_HIGH              (3 << 6)
+PAD_CTL_DSE_DISABLE             (0 << 3)
+PAD_CTL_DSE_240ohm              (1 << 3)
+PAD_CTL_DSE_120ohm              (2 << 3)
+PAD_CTL_DSE_80ohm               (3 << 3)
+PAD_CTL_DSE_60ohm               (4 << 3)
+PAD_CTL_DSE_48ohm               (5 << 3)
+PAD_CTL_DSE_40ohm               (6 << 3)
+PAD_CTL_DSE_34ohm               (7 << 3)
+PAD_CTL_SRE_FAST                (1 << 0)
+PAD_CTL_SRE_SLOW                (0 << 0)
+
+Refer to imx6sx-pinfunc.h in device tree source folder for all available
+imx6sx PIN_FUNC_ID.