#include <ioports.h>
#include <asm/io.h>
#endif
-#ifdef CONFIG_AT91RM9200 /* need this for the at91rm9200 */
+#if defined(CONFIG_AT91FAMILY)
#include <asm/io.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pio.h>
+#ifdef CONFIG_AT91_LEGACY
+#include <asm/arch/gpio.h>
+#endif
#endif
#ifdef CONFIG_IXP425 /* only valid for IXP425 */
#include <asm/arch/ixp425.h>
#ifdef CONFIG_LPC2292
#include <asm/arch/hardware.h>
#endif
-#ifdef CONFIG_MPC866 /* only valid for MPC866 */
+#if defined(CONFIG_MPC852T) || defined(CONFIG_MPC866)
#include <asm/io.h>
#endif
#include <i2c.h>
+#if defined(CONFIG_SOFT_I2C_GPIO_SCL)
+# include <asm/gpio.h>
+
+# ifndef I2C_GPIO_SYNC
+# define I2C_GPIO_SYNC
+# endif
+
+# ifndef I2C_INIT
+# define I2C_INIT \
+ do { \
+ gpio_request(CONFIG_SOFT_I2C_GPIO_SCL, "soft_i2c"); \
+ gpio_request(CONFIG_SOFT_I2C_GPIO_SDA, "soft_i2c"); \
+ } while (0)
+# endif
+
+# ifndef I2C_ACTIVE
+# define I2C_ACTIVE do { } while (0)
+# endif
+
+# ifndef I2C_TRISTATE
+# define I2C_TRISTATE do { } while (0)
+# endif
+
+# ifndef I2C_READ
+# define I2C_READ gpio_get_value(CONFIG_SOFT_I2C_GPIO_SDA)
+# endif
+
+# ifndef I2C_SDA
+# define I2C_SDA(bit) \
+ do { \
+ if (bit) \
+ gpio_direction_input(CONFIG_SOFT_I2C_GPIO_SDA); \
+ else \
+ gpio_direction_output(CONFIG_SOFT_I2C_GPIO_SDA, 0); \
+ I2C_GPIO_SYNC; \
+ } while (0)
+# endif
+
+# ifndef I2C_SCL
+# define I2C_SCL(bit) \
+ do { \
+ gpio_direction_output(CONFIG_SOFT_I2C_GPIO_SCL, bit); \
+ I2C_GPIO_SYNC; \
+ } while (0)
+# endif
+
+# ifndef I2C_DELAY
+# define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
+# endif
+
+#endif
+
/* #define DEBUG_I2C */
#ifdef DEBUG_I2C
DECLARE_GLOBAL_DATA_PTR;
#endif
-
/*-----------------------------------------------------------------------
* Definitions
*/
#define RETRIES 0
-
#define I2C_ACK 0 /* PD_SDA level to ack a byte */
#define I2C_NOACK 1 /* PD_SDA level to noack a byte */
#ifdef DEBUG_I2C
#define PRINTD(fmt,args...) do { \
- if (gd->have_console) \
printf (fmt ,##args); \
} while (0)
#else
I2C_TRISTATE;
}
-
/*-----------------------------------------------------------------------
* ack should be I2C_ACK or I2C_NOACK
*/
I2C_DELAY;
}
-
/*-----------------------------------------------------------------------
* Send 8 bits and look for an acknowledgement.
*/
int ret;
ret = i2x_mux_select_mux(bus);
+ i2c_init_board();
if (ret == 0)
i2c_bus_num = bus;
else
#endif
return 0;
}
-
-/* TODO: add 100/400k switching */
-unsigned int i2c_get_bus_speed(void)
-{
- return CONFIG_SYS_I2C_SPEED;
-}
-
-int i2c_set_bus_speed(unsigned int speed)
-{
- if (speed != CONFIG_SYS_I2C_SPEED)
- return -1;
-
- return 0;
-}
#endif
/*-----------------------------------------------------------------------