mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
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103 lines
2.6 KiB
Diff
103 lines
2.6 KiB
Diff
From 42c43ff981b6de8017354f4a8efd1d8716cf5e4a Mon Sep 17 00:00:00 2001
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From: Fadil Berisha <f.koliqi@gmail.com>
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Date: Tue, 6 Nov 2012 22:39:46 -0500
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Subject: [PATCH] MXS: imx23-olinuxino: Add i2c support
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imx23-olinuxino board has i2c interface exposed on UEXT connector. This patch add i2c
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support. Test is done with module MOD-IO2 attached on UEXT connector.
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Signed-off-by: Fadil Berisha <f.koliqi@gmail.com>
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---
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arch/arm/boot/dts/imx23-olinuxino.dts | 6 +++++
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arch/arm/boot/dts/imx23.dtsi | 43 +++++++++++++++++++++++++++++++--
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2 files changed, 47 insertions(+), 2 deletions(-)
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diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
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index 384d8b6..764d994 100644
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--- a/arch/arm/boot/dts/imx23-olinuxino.dts
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+++ b/arch/arm/boot/dts/imx23-olinuxino.dts
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@@ -50,6 +50,12 @@
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};
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apbx@80040000 {
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+ i2c0: i2c@80058000 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c1_pins_a>;
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+ status = "okay";
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+ };
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+
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duart: serial@80070000 {
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pinctrl-names = "default";
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pinctrl-0 = <&duart_pins_a>;
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diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
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index 6d31aa3..04f8bd1 100644
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--- a/arch/arm/boot/dts/imx23.dtsi
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+++ b/arch/arm/boot/dts/imx23.dtsi
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@@ -279,6 +279,39 @@
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fsl,voltage = <1>;
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fsl,pull-up = <0>;
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};
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+
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+ i2c0_pins_a: i2c0@0 {
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+ reg = <0>;
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+ fsl,pinmux-ids = <
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+ 0x01e0 /* MX23_PAD_I2C_SCL__I2C_SCL */
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+ 0x01f0 /* MX23_PAD_I2C_SDA__I2C_SDA */
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+ >;
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+ fsl,drive-strength = <1>;
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+ fsl,voltage = <1>;
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+ fsl,pull-up = <1>;
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+ };
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+
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+ i2c1_pins_a: i2c1@0 {
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+ reg = <0>;
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+ fsl,pinmux-ids = <
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+ 0x1171 /* MX23_PAD_LCD_ENABLE__I2C_SCL */
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+ 0x1181 /* MX23_PAD_LCD_HSYNC__I2C_SDA */
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+ >;
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+ fsl,drive-strength = <1>;
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+ fsl,voltage = <1>;
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+ fsl,pull-up = <1>;
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+ };
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+
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+ i2c2_pins_a: i2c2@0 {
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+ reg = <0>;
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+ fsl,pinmux-ids = <
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+ 0x2031 /* MX23_PAD_SSP1_DATA1__I2C_SCL */
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+ 0x2041 /* MX23_PAD_SSP1_DATA2__I2C_SDA */
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+ >;
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+ fsl,drive-strength = <1>;
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+ fsl,voltage = <1>;
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+ fsl,pull-up = <1>;
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+ };
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};
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digctl@8001c000 {
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@@ -337,7 +370,7 @@
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reg = <0x80038000 0x2000>;
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status = "disabled";
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};
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- };
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+ };
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apbx@80040000 {
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compatible = "simple-bus";
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@@ -387,8 +420,14 @@
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status = "disabled";
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};
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- i2c@80058000 {
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+ i2c0: i2c@80058000 {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ compatible = "fsl,imx28-i2c";
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reg = <0x80058000 0x2000>;
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+ interrupts = <27 26>;
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+ clock-frequency = <100000>;
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+ fsl,i2c-dma-channel = <3>;
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status = "disabled";
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};
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--
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1.7.10
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