[people/ms/u-boot.git] / board / kup / common / load_sernum_ethaddr.c

/*
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, wd@denx.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>
#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';
		}
	}
}
Commit	Line	Data
02b11f8e WD	1	/*
	2	* (C) Copyright 2000-2004
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	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.
	12	*
	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.
	17	*
	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,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <mpc8xx.h>
	26
	27	/*-----------------------------------------------------------------------
	28	* Process Hardware Information Block:
	29	*
	30	* If we boot on a system fresh from factory, check if the Hardware
	31	* Information Block exists and save the information it contains.
	32	*
	33	* The KUP Hardware Information Block is defined as
	34	* follows:
	35	* - located in first flash bank
6d0f6bcf JCPV	36	* - starts at offset CONFIG_SYS_HWINFO_OFFSET
6d0f6bcf JCPV	37	* - size CONFIG_SYS_HWINFO_SIZE
02b11f8e WD	38	*
	39	* Internal structure:
	40	* - sequence of ASCII character lines
	41	* - fields separated by <CR><LF>
	42	* - last field terminated by NUL character (0x00)
	43	*
	44	* Fields in Hardware Information Block:
	45	* 1) Module Type
	46	* 2) MAC Address
	47	* 3) ....
	48	*/
	49
	50
	51	#define ETHADDR_TOKEN "ethaddr="
	52	#define LCD_TOKEN "lcd="
	53
	54	void load_sernum_ethaddr (void)
	55	{
	56	unsigned char *hwi;
77ddac94	57	char *var;
6d0f6bcf	58	unsigned char hwi_stack[CONFIG_SYS_HWINFO_SIZE];
77ddac94	59	char *p;
02b11f8e	60
6d0f6bcf JCPV	61	hwi = (unsigned char *) (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_HWINFO_OFFSET);
6d0f6bcf JCPV	62	if (((unsigned long ) hwi) != (unsigned long) CONFIG_SYS_HWINFO_MAGIC) {
02b11f8e WD	63	printf ("HardwareInfo not found!\n");
	64	return;
	65	}
6d0f6bcf	66	memcpy (hwi_stack, hwi, CONFIG_SYS_HWINFO_SIZE);
02b11f8e WD	67
	68	/*
	69	** ethaddr
	70	*/
77ddac94	71	var = strstr ((char *)hwi_stack, ETHADDR_TOKEN);
02b11f8e WD	72	if (var) {
	73	var += sizeof (ETHADDR_TOKEN) - 1;
	74	p = strchr (var, '\r');
6d0f6bcf	75	if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) {
02b11f8e WD	76	*p = '\0';
	77	setenv ("ethaddr", var);
	78	*p = '\r';
	79	}
	80	}
	81	/*
	82	** lcd
	83	*/
77ddac94	84	var = strstr ((char *)hwi_stack, LCD_TOKEN);
02b11f8e WD	85	if (var) {
	86	var += sizeof (LCD_TOKEN) - 1;
	87	p = strchr (var, '\r');
6d0f6bcf	88	if ((unsigned char *)p < hwi + CONFIG_SYS_HWINFO_SIZE) {
02b11f8e WD	89	*p = '\0';
	90	setenv ("lcd", var);
	91	*p = '\r';
	92	}
	93	}
	94	}