source: SVN/rincon/u-boot/board/trizepsiv/eeprom.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: 2.3 KB
Line 
1/*
2 * (C) Copyright 2007
3 * Stefano Babic, DENX Software Engineering, sbabic@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 <command.h>
26
27extern u16 read_srom_word(int);
28extern void write_srom_word(int offset, u16 val);
29
30static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
31        int i;
32
33        for (i=0; i < 0x40; i++) {
34                if (!(i % 0x10))
35                        printf("\n%08lx:", i);
36                printf(" %04x", read_srom_word(i));
37        }
38        printf ("\n");
39        return (0);
40}
41
42static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
43        int offset,value;
44
45        if (argc < 4) {
46                printf ("Usage:\n%s\n", cmdtp->usage);
47                return 1;
48        }
49
50        offset=simple_strtoul(argv[2],NULL,16);
51        value=simple_strtoul(argv[3],NULL,16);
52        if (offset > 0x40) {
53                printf("Wrong offset : 0x%x\n",offset);
54                printf ("Usage:\n%s\n", cmdtp->usage);
55                return 1;
56        }
57        write_srom_word(offset, value);
58        return (0);
59}
60
61int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
62        if (argc < 2) {
63                printf ("Usage:\n%s\n", cmdtp->usage);
64                return 1;
65        }
66
67        if (strcmp (argv[1],"read") == 0) {
68                return (do_read_dm9000_eeprom(cmdtp,flag,argc,argv));
69        } else if (strcmp (argv[1],"write") == 0) {
70                return (do_write_dm9000_eeprom(cmdtp,flag,argc,argv));
71        } else {
72                printf ("Usage:\n%s\n", cmdtp->usage);
73                return 1;
74        }
75}
76
77U_BOOT_CMD(
78        dm9000ee,4,1,do_dm9000_eeprom,
79        "dm9000ee- Read/Write eeprom connected to Ethernet Controller\n",
80        "\ndm9000ee write <word offset> <value> \n"
81        "\tdm9000ee read \n"
82        "\tword:\t\t00-02 : MAC Address\n"
83        "\t\t\t03-07 : DM9000 Configuration\n"
84        "\t\t\t08-63 : User data\n");
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