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i2c.h

/*
 * PNX4008-specific tweaks for I2C IP3204 block
 *
 * Author: Vitaly Wool <vwool@ru.mvista.com>
 *
 * 2005 (c) MontaVista Software, Inc. This file is licensed under
 * the terms of the GNU General Public License version 2. This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */

#ifndef __ASM_ARCH_I2C_H__
#define __ASM_ARCH_I2C_H__

enum {
      mstatus_tdi = 0x00000001,
      mstatus_afi = 0x00000002,
      mstatus_nai = 0x00000004,
      mstatus_drmi = 0x00000008,
      mstatus_active = 0x00000020,
      mstatus_scl = 0x00000040,
      mstatus_sda = 0x00000080,
      mstatus_rff = 0x00000100,
      mstatus_rfe = 0x00000200,
      mstatus_tff = 0x00000400,
      mstatus_tfe = 0x00000800,
};

enum {
      mcntrl_tdie = 0x00000001,
      mcntrl_afie = 0x00000002,
      mcntrl_naie = 0x00000004,
      mcntrl_drmie = 0x00000008,
      mcntrl_daie = 0x00000020,
      mcntrl_rffie = 0x00000040,
      mcntrl_tffie = 0x00000080,
      mcntrl_reset = 0x00000100,
      mcntrl_cdbmode = 0x00000400,
};

enum {
      rw_bit = 1 << 0,
      start_bit = 1 << 8,
      stop_bit = 1 << 9,
};

#define I2C_REG_RX(a)   ((a)->ioaddr)           /* Rx FIFO reg (RO) */
#define I2C_REG_TX(a)   ((a)->ioaddr)           /* Tx FIFO reg (WO) */
#define I2C_REG_STS(a)  ((a)->ioaddr + 0x04)    /* Status reg (RO) */
#define I2C_REG_CTL(a)  ((a)->ioaddr + 0x08)    /* Ctl reg */
#define I2C_REG_CKL(a)  ((a)->ioaddr + 0x0c)    /* Clock divider low */
#define I2C_REG_CKH(a)  ((a)->ioaddr + 0x10)    /* Clock divider high */
#define I2C_REG_ADR(a)  ((a)->ioaddr + 0x14)    /* I2C address */
#define I2C_REG_RFL(a)  ((a)->ioaddr + 0x18)    /* Rx FIFO level (RO) */
#define I2C_REG_TFL(a)  ((a)->ioaddr + 0x1c)    /* Tx FIFO level (RO) */
#define I2C_REG_RXB(a)  ((a)->ioaddr + 0x20)    /* Num of bytes Rx-ed (RO) */
#define I2C_REG_TXB(a)  ((a)->ioaddr + 0x24)    /* Num of bytes Tx-ed (RO) */
#define I2C_REG_TXS(a)  ((a)->ioaddr + 0x28)    /* Tx slave FIFO (RO) */
#define I2C_REG_STFL(a) ((a)->ioaddr + 0x2c)    /* Tx slave FIFO level (RO) */

#define HCLK_MHZ        13
#define I2C_CHIP_NAME         "PNX4008-I2C"

#endif                        /* __ASM_ARCH_I2C_H___ */

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