The I2C hardware in the IMX233 is currently not supported,
however the i2c-mxs driver seems to be suitable.
To use the i2c-mxs driver it has to be added to the devicetree
for the IMX23.
Signed-off-by: Sander van Ginkel <san...@van-ginkel.eu>
---
diff -Naur linux-3.7-rc6/arch/arm/boot/dts/imx23-olinuxino.dts
linux-3.7-rc6-i2c/arch/arm/boot/dts/imx23-olinuxino.dts
--- linux-3.7-rc6/arch/arm/boot/dts/imx23-olinuxino.dts 2012-11-17
01:42:40.000000000 +0000
+++ linux-3.7-rc6-i2c/arch/arm/boot/dts/imx23-olinuxino.dts 2012-11-24
22:40:51.000000000 +0000
@@ -50,6 +50,13 @@
};
apbx@80040000 {
+
+ i2c0: i2c@80058000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_a>;
+ status = "okay";
+ };
+
duart: serial@80070000 {
pinctrl-names = "default";
pinctrl-0 = <&duart_pins_a>;
diff -Naur linux-3.7-rc6/arch/arm/boot/dts/imx23.dtsi
linux-3.7-rc6-i2c/arch/arm/boot/dts/imx23.dtsi
--- linux-3.7-rc6/arch/arm/boot/dts/imx23.dtsi 2012-11-17
01:42:40.000000000 +0000
+++ linux-3.7-rc6-i2c/arch/arm/boot/dts/imx23.dtsi 2012-11-24
22:40:51.000000000 +0000
@@ -144,6 +144,17 @@
fsl,pull-up = <0>;
};
+ i2c0_pins_a: i2c0@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ 0x1171 /*
MX23_PAD_LCD_ENABLE__I2C_SCL */
+ 0x1181 /*
MX23_PAD_LCD_HSYNC__I2C_SDA */
+ >;
+ fsl,drive-strength = <1>;
+ fsl,voltage = <1>;
+ fsl,pull-up = <1>;
+ };
+
auart0_2pins_a: auart0-2pins@0 {
reg = <0>;
fsl,pinmux-ids = <
@@ -387,9 +398,15 @@
status = "disabled";
};
- i2c@80058000 {
+ i2c0: i2c@80058000 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ compatible = "fsl,imx28-i2c";
reg = <0x80058000 0x2000>;
+ interrupts = <26 27>;
+ clock-frequency = <100000>;
status = "disabled";
+ fsl,i2c-dma-channel = <3>;
};
rtc@8005c000 {
--
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