X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fi2c.h;h=1f35acf67595105b5888d2f516bd4647c97cdf07;hb=52a8b82074d1c3a3dcde8e3d90e6a04f7eb3a1f8;hp=8ceb4c852149425c91377dc2a8d56e2bfd7c6c5a;hpb=33b48657df484e591af9ec3495a059c9cf1d84d7;p=u-boot

diff --git a/include/i2c.h b/include/i2c.h
index 8ceb4c8521..1f35acf675 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -46,16 +46,16 @@
  */
 #define I2C_RXTX_LEN	128	/* maximum tx/rx buffer length */
 
-#if defined(CONFIG_I2C_MULTI_BUS)
-#if !defined(CONFIG_SYS_MAX_I2C_BUS)
-#define CONFIG_SYS_MAX_I2C_BUS		2
-#endif
-#define I2C_GET_BUS()		i2c_get_bus_num()
-#define I2C_SET_BUS(a)		i2c_set_bus_num(a)
+#ifdef	CONFIG_I2C_MULTI_BUS
+#define	MAX_I2C_BUS			2
+#define	I2C_MULTI_BUS			1
 #else
-#define CONFIG_SYS_MAX_I2C_BUS		1
-#define I2C_GET_BUS()		0
-#define I2C_SET_BUS(a)
+#define	MAX_I2C_BUS			1
+#define	I2C_MULTI_BUS			0
+#endif
+
+#if !defined(CONFIG_SYS_MAX_I2C_BUS)
+#define CONFIG_SYS_MAX_I2C_BUS		MAX_I2C_BUS
 #endif
 
 /* define the I2C bus number for RTC and DTT if not already done */
@@ -78,7 +78,7 @@
 # elif (defined(CONFIG_AT91RM9200) || \
 	defined(CONFIG_AT91SAM9260) ||  defined(CONFIG_AT91SAM9261) || \
 	defined(CONFIG_AT91SAM9263)) && !defined(CONFIG_AT91_LEGACY)
-#  define I2C_SOFT_DECLARATIONS	at91_pio_t *pio	= (at91_pio_t *) AT91_PIO_BASE;
+#  define I2C_SOFT_DECLARATIONS	at91_pio_t *pio	= (at91_pio_t *) ATMEL_BASE_PIOA;
 # else
 #  define I2C_SOFT_DECLARATIONS
 # endif
@@ -236,4 +236,18 @@ int i2c_set_bus_speed(unsigned int);
 
 unsigned int i2c_get_bus_speed(void);
 
+/* NOTE: These two functions MUST be always_inline to avoid code growth! */
+static inline unsigned int I2C_GET_BUS(void) __attribute__((always_inline));
+static inline unsigned int I2C_GET_BUS(void)
+{
+	return I2C_MULTI_BUS ? i2c_get_bus_num() : 0;
+}
+
+static inline void I2C_SET_BUS(unsigned int bus) __attribute__((always_inline));
+static inline void I2C_SET_BUS(unsigned int bus)
+{
+	if (I2C_MULTI_BUS)
+		i2c_set_bus_num(bus);
+}
+
 #endif	/* _I2C_H_ */