[people/ms/u-boot.git] / board / eltec / elppc / eepro100_srom.c

/*
 * (C) Copyright 2002 ELTEC Elektronik AG
 * Frank Gottschling <fgottschling@eltec.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
 */

/*
 * Local network srom writing for first time run
 */

/* includes */
#include <common.h>
#include <pci.h>
#include <net.h>
#include "srom.h"

extern int eepro100_write_eeprom (struct eth_device *dev,
				  int location, int addr_len,
				  unsigned short data);

/*----------------------------------------------------------------------------*/

unsigned short eepro100_srom_checksum (unsigned short *sromdata)
{
	unsigned short sum = 0;
	unsigned int i;

	for (i = 0; i < (EE_SIZE - 1); i++) {
		sum += sromdata[i];
	}
	return (EE_CHECKSUM - sum);
}

/*----------------------------------------------------------------------------*/

int eepro100_srom_store (unsigned short *source)
{
	int count;
	struct eth_device onboard_dev;

	/* get onboard network iobase */
	pci_read_config_dword (PCI_BDF (0, 0x10, 0), PCI_BASE_ADDRESS_0,
			       (unsigned int *) &onboard_dev.iobase);
	onboard_dev.iobase &= ~0xf;

	source[63] = eepro100_srom_checksum (source);

	for (count = 0; count < EE_SIZE; count++) {
		if (eepro100_write_eeprom ((struct eth_device *) &onboard_dev,
					   count, EE_ADDR_BITS,
					   SROM_SHORT (source)) == -1) {
			return -1;
		}
		source++;
	}
	return 0;
}

/*----------------------------------------------------------------------------*/

#ifdef EEPRO100_SROM_CHECK

extern int read_eeprom (struct eth_device *dev, int location, int addr_len);

void eepro100_srom_load (unsigned short *destination)
{
	int count;
	struct eth_device onboard_dev;

#ifdef DEBUG
	int lr = 0;

	printf ("eepro100_srom_download:\n");
#endif

	/* get onboard network iobase */
	pci_read_config_dword (PCI_BDF (0, 0x10, 0), PCI_BASE_ADDRESS_0,
			       &onboard_dev.iobase);
	onboard_dev.iobase &= ~0xf;

	memset (destination, 0x65, 128);

	for (count = 0; count < 0x40; count++) {
		*destination++ = read_eeprom ((struct eth_device *) &onboard_dev,
					      count, EE_ADDR_BITS);
#ifdef DEBUG
		printf ("%04x ", *(destination - 1));
		if (lr++ == 7) {
			printf ("\n");
			lr = 0;
		}
#endif
	}
}
#endif /* EEPRO100_SROM_CHECK */

/*----------------------------------------------------------------------------*/
Commit	Line	Data
217c9dad WD	1	/*
	2	* (C) Copyright 2002 ELTEC Elektronik AG
	3	* Frank Gottschling <fgottschling@eltec.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	/*
	25	* Local network srom writing for first time run
	26	*/
	27
	28	/* includes */
	29	#include <common.h>
	30	#include <pci.h>
	31	#include <net.h>
	32	#include "srom.h"
	33
e2d45e6f WD	34	extern int eepro100_write_eeprom (struct eth_device *dev,
	35	int location, int addr_len,
	36	unsigned short data);
217c9dad WD	37
	38	/----------------------------------------------------------------------------/
	39
	40	unsigned short eepro100_srom_checksum (unsigned short *sromdata)
	41	{
e2d45e6f WD	42	unsigned short sum = 0;
	43	unsigned int i;
	44
	45	for (i = 0; i < (EE_SIZE - 1); i++) {
	46	sum += sromdata[i];
	47	}
	48	return (EE_CHECKSUM - sum);
217c9dad WD	49	}
	50
	51	/----------------------------------------------------------------------------/
	52
	53	int eepro100_srom_store (unsigned short *source)
	54	{
e2d45e6f WD	55	int count;
	56	struct eth_device onboard_dev;
	57
	58	/* get onboard network iobase */
	59	pci_read_config_dword (PCI_BDF (0, 0x10, 0), PCI_BASE_ADDRESS_0,
	60	(unsigned int *) &onboard_dev.iobase);
	61	onboard_dev.iobase &= ~0xf;
	62
	63	source[63] = eepro100_srom_checksum (source);
	64
	65	for (count = 0; count < EE_SIZE; count++) {
	66	if (eepro100_write_eeprom ((struct eth_device *) &onboard_dev,
	67	count, EE_ADDR_BITS,
	68	SROM_SHORT (source)) == -1) {
	69	return -1;
	70	}
	71	source++;
	72	}
	73	return 0;
217c9dad WD	74	}
	75
	76	/----------------------------------------------------------------------------/
	77
	78	#ifdef EEPRO100_SROM_CHECK
	79
e2d45e6f	80	extern int read_eeprom (struct eth_device *dev, int location, int addr_len);
217c9dad WD	81
	82	void eepro100_srom_load (unsigned short *destination)
	83	{
e2d45e6f WD	84	int count;
	85	struct eth_device onboard_dev;
	86
217c9dad	87	#ifdef DEBUG
e2d45e6f WD	88	int lr = 0;
	89
	90	printf ("eepro100_srom_download:\n");
217c9dad WD	91	#endif
217c9dad WD	92
e2d45e6f WD	93	/* get onboard network iobase */
	94	pci_read_config_dword (PCI_BDF (0, 0x10, 0), PCI_BASE_ADDRESS_0,
	95	&onboard_dev.iobase);
	96	onboard_dev.iobase &= ~0xf;
217c9dad	97
e2d45e6f	98	memset (destination, 0x65, 128);
217c9dad	99
e2d45e6f WD	100	for (count = 0; count < 0x40; count++) {
	101	destination++ = read_eeprom ((struct eth_device ) &onboard_dev,
	102	count, EE_ADDR_BITS);
217c9dad	103	#ifdef DEBUG
e2d45e6f WD	104	printf ("%04x ", *(destination - 1));
	105	if (lr++ == 7) {
	106	printf ("\n");
	107	lr = 0;
	108	}
217c9dad	109	#endif
e2d45e6f	110	}
217c9dad WD	111	}
	112	#endif /* EEPRO100_SROM_CHECK */
	113
	114	/----------------------------------------------------------------------------/