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/*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mpc8xx.h>
/*-----------------------------------------------------------------------
* Process Hardware Information Block:
*
* If we boot on a system fresh from factory, check if the Hardware
* Information Block exists and save the information it contains.
*
* The KUP Hardware Information Block is defined as
* follows:
* - located in first flash bank
* - starts at offset CONFIG_SYS_HWINFO_OFFSET
* - size CONFIG_SYS_HWINFO_SIZE
*
* Internal structure:
* - sequence of ASCII character lines
* - fields separated by <CR><LF>
* - last field terminated by NUL character (0x00)
*
* Fields in Hardware Information Block:
* 1) Module Type
* 2) MAC Address
* 3) ....
*/
#define ETHADDR_TOKEN "ethaddr="
#define LCD_TOKEN "lcd="
void load_sernum_ethaddr (void)
{
unsigned char *hwi;
char *var;
unsigned char hwi_stack[CONFIG_SYS_HWINFO_SIZE];
char *p;
hwi = (unsigned char *) (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_HWINFO_OFFSET);
if (*((unsigned long *) hwi) != (unsigned long) CONFIG_SYS_HWINFO_MAGIC) {
printf ("HardwareInfo not found!\n");
return;
}
memcpy (hwi_stack, hwi, CONFIG_SYS_HWINFO_SIZE);
/*
** ethaddr
*/
var = strstr ((char *)hwi_stack, ETHADDR_TOKEN);
if (var) {
var += sizeof (ETHADDR_TOKEN) - 1;
p = strchr (var, '\r');
if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) {
*p = '\0';
setenv ("ethaddr", var);
*p = '\r';
}
}
/*
** lcd
*/
var = strstr ((char *)hwi_stack, LCD_TOKEN);
if (var) {
var += sizeof (LCD_TOKEN) - 1;
p = strchr (var, '\r');
if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) {
*p = '\0';
setenv ("lcd", var);
*p = '\r';
}
}
}
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