Subversion Repositories openrisc_2011-10-31

/*

 * These files are taken from the MCF523X source code example package

 * which is available on the Freescale website. Freescale explicitly

 * grants the redistribution and modification of these source files.

 * The complete licensing information is available in the file

 * LICENSE_FREESCALE.TXT.

 *

 * File:        mcf523x_i2c.h

 * Purpose:     Register and bit definitions for the MCF523X

 *

 * Notes:

 *

 */

#ifndef __MCF523X_I2C_H__

#define __MCF523X_I2C_H__

/*********************************************************************

*

* I2C Module (I2C)

*

*********************************************************************/

/* Register read/write macros */

#define MCF_I2C_I2AR     (*(vuint8 *)(void*)(&__IPSBAR[0x000300]))

#define MCF_I2C_I2FDR    (*(vuint8 *)(void*)(&__IPSBAR[0x000304]))

#define MCF_I2C_I2CR     (*(vuint8 *)(void*)(&__IPSBAR[0x000308]))

#define MCF_I2C_I2SR     (*(vuint8 *)(void*)(&__IPSBAR[0x00030C]))

#define MCF_I2C_I2DR     (*(vuint8 *)(void*)(&__IPSBAR[0x000310]))

#define MCF_I2C_I2ICR    (*(vuint8 *)(void*)(&__IPSBAR[0x000320]))

/* Bit definitions and macros for MCF_I2C_I2AR */

#define MCF_I2C_I2AR_ADR(x)    (((x)&0x7F)<<1)

/* Bit definitions and macros for MCF_I2C_I2FDR */

#define MCF_I2C_I2FDR_IC(x)    (((x)&0x3F)<<0)

/* Bit definitions and macros for MCF_I2C_I2CR */

#define MCF_I2C_I2CR_RSTA      (0x04)

#define MCF_I2C_I2CR_TXAK      (0x08)

#define MCF_I2C_I2CR_MTX       (0x10)

#define MCF_I2C_I2CR_MSTA      (0x20)

#define MCF_I2C_I2CR_IIEN      (0x40)

#define MCF_I2C_I2CR_IEN       (0x80)

/* Bit definitions and macros for MCF_I2C_I2SR */

#define MCF_I2C_I2SR_RXAK      (0x01)

#define MCF_I2C_I2SR_IIF       (0x02)

#define MCF_I2C_I2SR_SRW       (0x04)

#define MCF_I2C_I2SR_IAL       (0x10)

#define MCF_I2C_I2SR_IBB       (0x20)

#define MCF_I2C_I2SR_IAAS      (0x40)

#define MCF_I2C_I2SR_ICF       (0x80)

/* Bit definitions and macros for MCF_I2C_I2ICR */

#define MCF_I2C_I2ICR_IE       (0x01)

#define MCF_I2C_I2ICR_RE       (0x02)

#define MCF_I2C_I2ICR_TE       (0x04)

#define MCF_I2C_I2ICR_BNBE     (0x08)

/********************************************************************/

#endif /* __MCF523X_I2C_H__ */