2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 /*-----------------------------------------------------------------------
28 * Process Hardware Information Block:
30 * If we boot on a system fresh from factory, check if the Hardware
31 * Information Block exists and save the information it contains.
33 * The KUP Hardware Information Block is defined as
35 * - located in first flash bank
36 * - starts at offset CFG_HWINFO_OFFSET
37 * - size CFG_HWINFO_SIZE
40 * - sequence of ASCII character lines
41 * - fields separated by <CR><LF>
42 * - last field terminated by NUL character (0x00)
44 * Fields in Hardware Information Block:
51 #define ETHADDR_TOKEN "ethaddr="
52 #define LCD_TOKEN "lcd="
54 void load_sernum_ethaddr (void)
58 unsigned char hwi_stack[CFG_HWINFO_SIZE];
61 hwi = (unsigned char *) (CFG_FLASH_BASE + CFG_HWINFO_OFFSET);
62 if (*((unsigned long *) hwi) != (unsigned long) CFG_HWINFO_MAGIC) {
63 printf ("HardwareInfo not found!\n");
66 memcpy (hwi_stack, hwi, CFG_HWINFO_SIZE);
71 var = strstr ((char *)hwi_stack, ETHADDR_TOKEN);
73 var += sizeof (ETHADDR_TOKEN) - 1;
74 p = strchr (var, '\r');
75 if ((unsigned char *)p < hwi + CFG_HWINFO_SIZE) {
77 setenv ("ethaddr", var);
84 var = strstr ((char *)hwi_stack, LCD_TOKEN);
86 var += sizeof (LCD_TOKEN) - 1;
87 p = strchr (var, '\r');
88 if ((unsigned char *)p < hwi + CFG_HWINFO_SIZE) {