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Diffstat (limited to 'board/freescale/common/eeprom.c')
| -rw-r--r-- | board/freescale/common/eeprom.c | 60 | 
1 files changed, 60 insertions, 0 deletions
| diff --git a/board/freescale/common/eeprom.c b/board/freescale/common/eeprom.c new file mode 100644 index 000000000..5034e0ca2 --- /dev/null +++ b/board/freescale/common/eeprom.c @@ -0,0 +1,60 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <common.h> +#include <i2c.h> + +#include "eeprom.h" + + +typedef struct { +	char idee_pcbid[4];		/* "CCID" for CDC v1.X */ +	u8 idee_major; +	u8 idee_minor; +	char idee_serial[10]; +	char idee_errata[2]; +	char idee_date[8];		/* yyyymmdd */ +	/* The rest of the EEPROM space is reserved */ +} id_eeprom_t; + + +unsigned int +get_cpu_board_revision(void) +{ +	uint major = 0; +	uint minor = 0; + +	id_eeprom_t id_eeprom; + +	i2c_read(CFG_I2C_EEPROM_ADDR, 0, 2, +		 (uchar *) &id_eeprom, sizeof(id_eeprom)); + +	major = id_eeprom.idee_major; +	minor = id_eeprom.idee_minor; + +	if (major == 0xff && minor == 0xff) { +		major = minor = 0; +	} + +	return MPC85XX_CPU_BOARD_REV(major,minor); +} |