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author | wdenk <wdenk> | 2004-10-10 21:21:55 +0000 |
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committer | wdenk <wdenk> | 2004-10-10 21:21:55 +0000 |
commit | 03f5c55021c2d6297e66cc11bfea75f149a5d71c (patch) | |
tree | 658bdbc75b90b7a122c061fa2aca6d6eb94dfb67 /board/cds/common/eeprom.c | |
parent | cf33678e51e02143ed67850b3f13646fd51fb489 (diff) | |
download | u-boot-imx-03f5c55021c2d6297e66cc11bfea75f149a5d71c.zip u-boot-imx-03f5c55021c2d6297e66cc11bfea75f149a5d71c.tar.gz u-boot-imx-03f5c55021c2d6297e66cc11bfea75f149a5d71c.tar.bz2 |
Patches by Jon Loeliger, 24 Aug 2004:
- Add support for the MPC8541 and MPC8555 CDS boards
- Cleanup eth?addr handling: make dependent on CONFIG_ETH?ADDR
Diffstat (limited to 'board/cds/common/eeprom.c')
-rw-r--r-- | board/cds/common/eeprom.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/board/cds/common/eeprom.c b/board/cds/common/eeprom.c new file mode 100644 index 0000000..5034e0c --- /dev/null +++ b/board/cds/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); +} |