board/cds/common/eeprom.h

   1 /*
   2  * Copyright 2004 Freescale Semiconductor.
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #ifndef __EEPROM_H_
  24 #define __EEPROM_H_
  25
  26
  27 /*
  28  * EEPROM Board System Register interface.
  29  */
  30
  31
  32 /*
  33  * CPU Board Revision
  34  */
  35 #define MPC85XX_CPU_BOARD_REV(maj, min) ((((maj)&0xff) << 8) | ((min) & 0xff))
  36 #define MPC85XX_CPU_BOARD_MAJOR(rev)    (((rev) >> 8) & 0xff)
  37 #define MPC85XX_CPU_BOARD_MINOR(rev)    ((rev) & 0xff)
  38
  39 #define MPC85XX_CPU_BOARD_REV_UNKNOWN   MPC85XX_CPU_BOARD_REV(0,0)
  40 #define MPC85XX_CPU_BOARD_REV_1_0       MPC85XX_CPU_BOARD_REV(1,0)
  41 #define MPC85XX_CPU_BOARD_REV_1_1       MPC85XX_CPU_BOARD_REV(1,1)
  42
  43 /*
  44  * Returns CPU board revision register as a 16-bit value with
  45  * the Major in the high byte, and Minor in the low byte.
  46  */
  47 extern unsigned int get_cpu_board_revision(void);
  48
  49
  50 #endif  /* __CADMUS_H_ */