LXR uboot/board/eltec/elppc/eepro100

   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
  34extern int eepro100_write_eeprom (struct eth_device *dev,
  35                                  int location, int addr_len,
  36                                  unsigned short data);
  37
  38/*----------------------------------------------------------------------------*/
  39
  40unsigned short eepro100_srom_checksum (unsigned short *sromdata)
  41{
  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);
  49}
  50
  51/*----------------------------------------------------------------------------*/
  52
  53int eepro100_srom_store (unsigned short *source)
  54{
  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;
  74}
  75
  76/*----------------------------------------------------------------------------*/
  77
  78#ifdef EEPRO100_SROM_CHECK
  79
  80extern int read_eeprom (struct eth_device *dev, int location, int addr_len);
  81
  82void eepro100_srom_load (unsigned short *destination)
  83{
  84        int count;
  85        struct eth_device onboard_dev;
  86
  87#ifdef DEBUG
  88        int lr = 0;
  89
  90        printf ("eepro100_srom_download:\n");
  91#endif
  92
  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;
  97
  98        memset (destination, 0x65, 128);
  99
 100        for (count = 0; count < 0x40; count++) {
 101                *destination++ = read_eeprom ((struct eth_device *) &onboard_dev,
 102                                              count, EE_ADDR_BITS);
 103#ifdef DEBUG
 104                printf ("%04x ", *(destination - 1));
 105                if (lr++ == 7) {
 106                        printf ("\n");
 107                        lr = 0;
 108                }
 109#endif
 110        }
 111}
 112#endif /* EEPRO100_SROM_CHECK */
 113
 114/*----------------------------------------------------------------------------*/
 115