source: SVN/rincon/u-boot/board/eltec/elppc/eepro100_srom.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 2.9 KB
Line 
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/*----------------------------------------------------------------------------*/
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