From 031ed2fa748ccfc746bd0e0073f8690c84a0d7b6 Mon Sep 17 00:00:00 2001 From: Vipin KUMAR Date: Sun, 26 Feb 2012 23:13:29 +0000 Subject: [PATCH] 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 Signed-off-by: Amit Virdi --- drivers/i2c/Makefile | 2 +- drivers/i2c/{spr_i2c.c => designware_i2c.c} | 4 ++-- .../arch-spear/spr_i2c.h => drivers/i2c/designware_i2c.h | 6 +++--- include/configs/spear-common.h | 2 +- 4 files changed, 7 insertions(+), 7 deletions(-) rename drivers/i2c/{spr_i2c.c => designware_i2c.c} (98%) rename arch/arm/include/asm/arch-spear/spr_i2c.h => drivers/i2c/designware_i2c.h (98%) diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index 42913f7cbb..5dbdbe3672 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 similarity index 98% rename from drivers/i2c/spr_i2c.c rename to drivers/i2c/designware_i2c.c index eabfe843f7..d352146081 100644 --- a/drivers/i2c/spr_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -24,7 +24,7 @@ #include #include #include -#include +#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 similarity index 98% rename from arch/arm/include/asm/arch-spear/spr_i2c.h rename to drivers/i2c/designware_i2c.h index 7521ebc6cf..03b520ed43 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 5fef8cce80..a79181565e 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 -- 2.25.1