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95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <mpc8xx.h>
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/*-----------------------------------------------------------------------
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* Process Hardware Information Block:
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*
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* If we boot on a system fresh from factory, check if the Hardware
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* Information Block exists and save the information it contains.
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*
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* The KUP Hardware Information Block is defined as
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* follows:
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* - located in first flash bank
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* - starts at offset CONFIG_SYS_HWINFO_OFFSET
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* - size CONFIG_SYS_HWINFO_SIZE
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*
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* Internal structure:
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* - sequence of ASCII character lines
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* - fields separated by <CR><LF>
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* - last field terminated by NUL character (0x00)
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*
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* Fields in Hardware Information Block:
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* 1) Module Type
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* 2) MAC Address
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* 3) ....
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*/
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#define ETHADDR_TOKEN "ethaddr="
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#define LCD_TOKEN "lcd="
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void load_sernum_ethaddr (void)
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{
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unsigned char *hwi;
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char *var;
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unsigned char hwi_stack[CONFIG_SYS_HWINFO_SIZE];
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char *p;
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hwi = (unsigned char *) (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_HWINFO_OFFSET);
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if (*((unsigned long *) hwi) != (unsigned long) CONFIG_SYS_HWINFO_MAGIC) {
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printf ("HardwareInfo not found!\n");
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return;
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}
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memcpy (hwi_stack, hwi, CONFIG_SYS_HWINFO_SIZE);
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/*
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** ethaddr
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*/
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var = strstr ((char *)hwi_stack, ETHADDR_TOKEN);
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if (var) {
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var += sizeof (ETHADDR_TOKEN) - 1;
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p = strchr (var, '\r');
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if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) {
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*p = '\0';
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setenv ("ethaddr", var);
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*p = '\r';
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}
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}
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/*
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** lcd
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*/
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var = strstr ((char *)hwi_stack, LCD_TOKEN);
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if (var) {
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var += sizeof (LCD_TOKEN) - 1;
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p = strchr (var, '\r');
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if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) {
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*p = '\0';
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setenv ("lcd", var);
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*p = '\r';
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}
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}
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}
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