mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*
|
|
* (C) Copyright 2003
|
|
* Reinhard Meyer, EMK Elektronik GmbH, r.meyer@emk-elektronik.de
|
|
*
|
|
* 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>
|
|
|
|
/*****************************************************************************
|
|
* read "factory" part of EEPROM and set some environment variables
|
|
*****************************************************************************/
|
|
void read_factory_r (void)
|
|
{
|
|
/* read 'factory' part of EEPROM */
|
|
uchar buf[81];
|
|
uchar *p;
|
|
uint length;
|
|
uint addr;
|
|
uint len;
|
|
|
|
/* get length first */
|
|
addr = CONFIG_SYS_FACT_OFFSET;
|
|
if (eeprom_read (CONFIG_SYS_I2C_FACT_ADDR, addr, buf, 2)) {
|
|
bailout:
|
|
printf ("cannot read factory configuration\n");
|
|
printf ("be sure to set ethaddr yourself!\n");
|
|
return;
|
|
}
|
|
length = buf[0] + (buf[1] << 8);
|
|
addr += 2;
|
|
|
|
/* sanity check */
|
|
if (length < 20 || length > CONFIG_SYS_FACT_SIZE - 2)
|
|
goto bailout;
|
|
|
|
/* read lines */
|
|
while (length > 0) {
|
|
/* read one line */
|
|
len = length > 80 ? 80 : length;
|
|
if (eeprom_read (CONFIG_SYS_I2C_FACT_ADDR, addr, buf, len))
|
|
goto bailout;
|
|
/* mark end of buffer */
|
|
buf[len] = 0;
|
|
/* search end of line */
|
|
for (p = buf; *p && *p != 0x0a; p++);
|
|
if (!*p)
|
|
goto bailout;
|
|
*p++ = 0;
|
|
/* advance to next line start */
|
|
length -= p - buf;
|
|
addr += p - buf;
|
|
/*printf ("%s\n", buf); */
|
|
/* search for our specific entry */
|
|
if (!strncmp ((char *) buf, "[RLA/lan/Ethernet] ", 19)) {
|
|
setenv ("ethaddr", (char *)(buf + 19));
|
|
} else if (!strncmp ((char *) buf, "[BOARD/SERIAL] ", 15)) {
|
|
setenv ("serial#", (char *)(buf + 15));
|
|
} else if (!strncmp ((char *) buf, "[BOARD/TYPE] ", 13)) {
|
|
setenv ("board_id", (char *)(buf + 13));
|
|
}
|
|
}
|
|
}
|