#include <asm/io.h>
#include <asm/arch/hardware.h>
#endif
+#ifdef CONFIG_AT91SAM9263 /* only valid for AT91SAM9263 */
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+#endif
#ifdef CONFIG_IXP425 /* only valid for IXP425 */
#include <asm/arch/ixp425.h>
#endif
#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>
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 */
#endif
#if defined(CONFIG_I2C_MULTI_BUS)
-static unsigned int i2c_bus_num __attribute__ ((section ("data"))) = 0;
+static unsigned int i2c_bus_num __attribute__ ((section (".data"))) = 0;
#endif /* CONFIG_I2C_MULTI_BUS */
/*-----------------------------------------------------------------------
I2C_TRISTATE;
}
-
/*-----------------------------------------------------------------------
* ack should be I2C_ACK or I2C_NOACK
*/
I2C_DELAY;
}
-
/*-----------------------------------------------------------------------
* Send 8 bits and look for an acknowledgement.
*/
#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
/*-----------------------------------------------------------------------
}
shift -= 8;
}
- send_stop(); /* reportedly some chips need a full stop */
+
+ /* Some I2C chips need a stop/start sequence here,
+ * other chips don't work with a full stop and need
+ * only a start. Default behaviour is to send the
+ * stop/start sequence.
+ */
+#ifdef CONFIG_SOFT_I2C_READ_REPEATED_START
send_start();
+#else
+ send_stop();
+ send_start();
+#endif
}
/*
* Send the chip address again, this time for a read cycle.
send_stop();
return(failures);
}
-
-/*-----------------------------------------------------------------------
- * Read a register
- */
-uchar i2c_reg_read(uchar i2c_addr, uchar reg)
-{
- uchar buf;
-
- i2c_read(i2c_addr, reg, 1, &buf, 1);
-
- return(buf);
-}
-
-/*-----------------------------------------------------------------------
- * Write a register
- */
-void i2c_reg_write(uchar i2c_addr, uchar reg, uchar val)
-{
- i2c_write(i2c_addr, reg, 1, &val, 1);
-}