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imported Ka-Ro specific additions to U-Boot 2009.08 for TX28
[karo-tx-uboot.git] / board / eltec / elppc / eepro100_srom.c
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
34 extern int eepro100_write_eeprom (struct eth_device *dev,
35                                   int location, int addr_len,
36                                   unsigned short data);
37
38 /*----------------------------------------------------------------------------*/
39
40 unsigned 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
53 int 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
80 extern int read_eeprom (struct eth_device *dev, int location, int addr_len);
81
82 void 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 /*----------------------------------------------------------------------------*/