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

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

[Steffen Trumtrar]

Signed-off-by: Steffen Trumtrar <s.trumtrar@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


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

[Sascha Hauer]

On Tue, Aug 07, 2012 at 10:44:59AM +0200, Steffen Trumtrar wrote:
> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>

Applied, thanks

Sascha

> ---
> 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
> 
> 
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