From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Subject: [PATCH] ARM i.MX: Add support for i2c on imx6
Date: Tue, 7 Aug 2012 10:44:59 +0200 [thread overview]
Message-ID: <1344329099-8528-1-git-send-email-s.trumtrar@pengutronix.de> (raw)
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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next reply other threads:[~2012-08-07 8:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-07 8:44 Steffen Trumtrar [this message]
2012-08-09 7:35 ` Sascha Hauer
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