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mgsuvd: fix compiler warning when using soft_i2c driver

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Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2008-10-17 13:52:51 +02:00 committed by Wolfgang Denk
parent cac9cf7875
commit a21ca95f8b
3 changed files with 15 additions and 10 deletions
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3
board/keymile/common/common.c
View file

@ -34,6 +34,7 @@
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
#include <i2c.h>
#endif
#include <asm/io.h>
extern int i2c_soft_read_pin (void);
@ -400,7 +401,7 @@ static void set_scl (int state)
static int get_sda (void)
{
return i2c_soft_read_pin ();
return I2C_READ;
}
static int get_scl (void)

4
drivers/i2c/soft_i2c.c
View file

@ -28,6 +28,7 @@
#include <common.h>
#ifdef CONFIG_MPC8260 /* only valid for MPC8260 */
#include <ioports.h>
#include <asm/io.h>
#endif
#ifdef CONFIG_AT91RM9200 /* need this for the at91rm9200 */
#include <asm/io.h>
@ -39,6 +40,9 @@
#ifdef CONFIG_LPC2292
#include <asm/arch/hardware.h>
#endif
#ifdef CONFIG_MPC866 /* only valid for MPC866 */
#include <asm/io.h>
#endif
#include <i2c.h>
/* #define DEBUG_I2C */

18
include/configs/mgsuvd.h
View file

@ -346,8 +346,8 @@
/*
* Software (bit-bang) I2C driver configuration
*/
#define I2C_BASE_DIR (CONFIG_SYS_PIGGY_BASE + 0x04)
#define I2C_BASE_PORT (CONFIG_SYS_PIGGY_BASE + 0x09)
#define I2C_BASE_DIR ((u16 *)(CONFIG_SYS_PIGGY_BASE + 0x04))
#define I2C_BASE_PORT ((u8 *)(CONFIG_SYS_PIGGY_BASE + 0x09))
#define SDA_BIT 0x40
#define SCL_BIT 0x80
@ -356,18 +356,18 @@
#define I2C_ACTIVE do {} while (0)
#define I2C_TRISTATE do {} while (0)
#define I2C_READ i2c_soft_read_pin ()
#define I2C_READ ((in_8(I2C_BASE_PORT) & SDA_BIT) == SDA_BIT)
#define I2C_SDA(bit) if(bit) { \
*(unsigned short *)(I2C_BASE_DIR) &= ~SDA_CONF; \
clrbits(be16, I2C_BASE_DIR, SDA_CONF); \
} else { \
*(unsigned char *)(I2C_BASE_PORT) &= ~SDA_BIT; \
*(unsigned short *)(I2C_BASE_DIR) |= SDA_CONF; \
clrbits(8, I2C_BASE_PORT, SDA_BIT); \
setbits(be16, I2C_BASE_DIR, SDA_CONF); \
}
#define I2C_SCL(bit) if(bit) { \
*(unsigned short *)(I2C_BASE_DIR) &= ~SCL_CONF; \
clrbits(be16, I2C_BASE_DIR, SCL_CONF); \
} else { \
*(unsigned char *)(I2C_BASE_PORT) &= ~SCL_BIT; \
*(unsigned short *)(I2C_BASE_DIR) |= SCL_CONF; \
clrbits(8, I2C_BASE_PORT, SCL_BIT); \
setbits(be16, I2C_BASE_DIR, SCL_CONF); \
}
#define I2C_DELAY udelay(50) /* 1/4 I2C clock duration */