*/
#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 */
# 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
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);
+}
+
+/* Multi I2C definitions */
+enum {
+ I2C_0, I2C_1, I2C_2, I2C_3, I2C_4, I2C_5, I2C_6, I2C_7,
+ I2C_8, I2C_9, I2C_10,
+};
+
+/* Multi I2C busses handling */
+#ifdef CONFIG_SOFT_I2C_MULTI_BUS
+extern int get_multi_scl_pin(void);
+extern int get_multi_sda_pin(void);
+extern int multi_i2c_init(void);
+#endif
#endif /* _I2C_H_ */