xref: /openbmc/u-boot/board/freescale/common/eeprom.h (revision 9b914727)
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_ */
51