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authorVipin KUMAR2012-02-26 23:13:29 +0000
committerHeiko Schocher2012-04-24 09:56:37 +0200
commit031ed2fa748ccfc746bd0e0073f8690c84a0d7b6 (patch)
tree405f6b6f5fd5f7adb2b6e34f13d575b23b2a3443
parent2d344a2ab27d8704efd09088ee00be194b3556eb (diff)
i2c: Add support for designware i2c controller
Earlier, a driver exists in the u-boot source for designware i2c interface. That driver was specific to spear platforms. This patch implements the i2c controller as a generic driver which can be used by multiple platforms The driver files are now renamed to designware_i2c.c and designware_i2c.h and these are moved into drivers/i2c folder for reusability by other platforms Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com>
-rw-r--r--drivers/i2c/Makefile2
-rw-r--r--drivers/i2c/designware_i2c.c (renamed from drivers/i2c/spr_i2c.c)4
-rw-r--r--drivers/i2c/designware_i2c.h (renamed from arch/arm/include/asm/arch-spear/spr_i2c.h)6
-rw-r--r--include/configs/spear-common.h2
4 files changed, 7 insertions, 7 deletions
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index 42913f7cbb7..5dbdbe36722 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -27,6 +27,7 @@ LIB := $(obj)libi2c.o
COBJS-$(CONFIG_BFIN_TWI_I2C) += bfin-twi_i2c.o
COBJS-$(CONFIG_DRIVER_DAVINCI_I2C) += davinci_i2c.o
+COBJS-$(CONFIG_DW_I2C) += designware_i2c.o
COBJS-$(CONFIG_FSL_I2C) += fsl_i2c.o
COBJS-$(CONFIG_I2C_MVTWSI) += mvtwsi.o
COBJS-$(CONFIG_I2C_MV) += mv_i2c.o
@@ -40,7 +41,6 @@ COBJS-$(CONFIG_PPC4XX_I2C) += ppc4xx_i2c.o
COBJS-$(CONFIG_DRIVER_S3C24X0_I2C) += s3c24x0_i2c.o
COBJS-$(CONFIG_S3C44B0_I2C) += s3c44b0_i2c.o
COBJS-$(CONFIG_SOFT_I2C) += soft_i2c.o
-COBJS-$(CONFIG_SPEAR_I2C) += spr_i2c.o
COBJS-$(CONFIG_TEGRA_I2C) += tegra_i2c.o
COBJS-$(CONFIG_TSI108_I2C) += tsi108_i2c.o
COBJS-$(CONFIG_U8500_I2C) += u8500_i2c.o
diff --git a/drivers/i2c/spr_i2c.c b/drivers/i2c/designware_i2c.c
index eabfe843f77..d3521460819 100644
--- a/drivers/i2c/spr_i2c.c
+++ b/drivers/i2c/designware_i2c.c
@@ -24,7 +24,7 @@
#include <common.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
-#include <asm/arch/spr_i2c.h>
+#include "designware_i2c.h"
static struct i2c_regs *const i2c_regs_p =
(struct i2c_regs *)CONFIG_SYS_I2C_BASE;
@@ -113,7 +113,7 @@ int i2c_get_bus_speed(void)
/*
* i2c_init - Init function
* @speed: required i2c speed
- * @slaveadd: slave address for the spear device
+ * @slaveadd: slave address for the device
*
* Initialization function.
*/
diff --git a/arch/arm/include/asm/arch-spear/spr_i2c.h b/drivers/i2c/designware_i2c.h
index 7521ebc6cf0..03b520ed43a 100644
--- a/arch/arm/include/asm/arch-spear/spr_i2c.h
+++ b/drivers/i2c/designware_i2c.h
@@ -21,8 +21,8 @@
* MA 02111-1307 USA
*/
-#ifndef __SPR_I2C_H_
-#define __SPR_I2C_H_
+#ifndef __DW_I2C_H_
+#define __DW_I2C_H_
struct i2c_regs {
u32 ic_con;
@@ -143,4 +143,4 @@ struct i2c_regs {
#define I2C_FAST_SPEED 400000
#define I2C_STANDARD_SPEED 100000
-#endif /* __SPR_I2C_H_ */
+#endif /* __DW_I2C_H_ */
diff --git a/include/configs/spear-common.h b/include/configs/spear-common.h
index 5fef8cce808..a79181565e2 100644
--- a/include/configs/spear-common.h
+++ b/include/configs/spear-common.h
@@ -41,7 +41,7 @@
/* I2C driver configuration */
#define CONFIG_HARD_I2C
-#define CONFIG_SPEAR_I2C
+#define CONFIG_DW_I2C
#define CONFIG_SYS_I2C_SPEED 400000
#define CONFIG_SYS_I2C_SLAVE 0x02