[PATCH] ARM i.MX: Add support for i2c on imx6

[Steffen Trumtrar]

Signed-off-by: Steffen Trumtrar <s.trumtrar at pengutronix.de>
---
Hi all,

this patch adds support for i2c on imx6. The patch was tested on a sabrelite
board, where I measured SCL and SDATA, as there are no devices connected (apart
from an sgtl5000).

 arch/arm/mach-imx/include/mach/devices-imx6.h |   15 +++++++++++++++
 arch/arm/mach-imx/speed-imx6.c                |    6 ++++++
 2 files changed, 21 insertions(+)

diff --git a/arch/arm/mach-imx/include/mach/devices-imx6.h b/arch/arm/mach-imx/include/mach/devices-imx6.h
index ca063c5..c73e488 100644
--- a/arch/arm/mach-imx/include/mach/devices-imx6.h
+++ b/arch/arm/mach-imx/include/mach/devices-imx6.h
@@ -49,3 +49,18 @@ static inline struct device_d *imx6_add_spi0(struct spi_imx_master *pdata)
 {
 	return imx_add_spi((void *)MX6_ECSPI1_BASE_ADDR, 0, pdata);
 }
+
+static inline struct device_d *imx6_add_i2c0(struct i2c_platform_data *pdata)
+{
+	return imx_add_i2c((void *)MX6_I2C1_BASE_ADDR, 0, pdata);
+}
+
+static inline struct device_d *imx6_add_i2c1(struct i2c_platform_data *pdata)
+{
+	return imx_add_i2c((void *)MX6_I2C2_BASE_ADDR, 1, pdata);
+}
+
+static inline struct device_d *imx6_add_i2c2(struct i2c_platform_data *pdata)
+{
+	return imx_add_i2c((void *)MX6_I2C3_BASE_ADDR, 2, pdata);
+}
diff --git a/arch/arm/mach-imx/speed-imx6.c b/arch/arm/mach-imx/speed-imx6.c
index df24545..645b2c9 100644
--- a/arch/arm/mach-imx/speed-imx6.c
+++ b/arch/arm/mach-imx/speed-imx6.c
@@ -332,6 +332,11 @@ u32 imx_get_fecclk(void)
 	return __get_ipg_clk();
 }
 
+u32 imx_get_i2cclk(void)
+{
+	return __get_ipg_per_clk();
+}
+
 u32 imx_get_cspiclk(void)
 {
 	return __get_cspi_clk();
@@ -351,6 +356,7 @@ void imx_dump_clocks(void)
 	printf("mx6q pll8: %d\n", freq);
 	printf("mcu main:  %d\n", __get_mcu_main_clk());
 	printf("periph:    %d\n", __get_periph_clk());
+	printf("i2c:	   %d\n", __get_ipg_per_clk());
 	printf("ipg:       %d\n", __get_ipg_clk());
 	printf("ipg per:   %d\n", __get_ipg_per_clk());
 	printf("cspi:      %d\n", __get_cspi_clk());
-- 
1.7.10.4