]> git.sur5r.net Git - u-boot/blob - board/trizepsiv/eeprom.c
Merge branch 'master' of git://www.denx.de/git/u-boot-cfi-flash
[u-boot] / board / trizepsiv / eeprom.c
1 /*
2  * (C) Copyright 2007
3  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
4  *
5  * SPDX-License-Identifier:     GPL-2.0+ 
6  */
7
8 #include <common.h>
9 #include <command.h>
10 #include <dm9000.h>
11
12 static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
13         unsigned int i;
14         u8 data[2];
15
16         for (i=0; i < 0x40; i++) {
17                 if (!(i % 0x10))
18                         printf("\n%08x:", i);
19                 dm9000_read_srom_word(i, data);
20                 printf(" %02x%02x", data[1], data[0]);
21         }
22         printf ("\n");
23         return (0);
24 }
25
26 static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
27         int offset,value;
28
29         if (argc < 4)
30                 return cmd_usage(cmdtp);
31
32         offset=simple_strtoul(argv[2],NULL,16);
33         value=simple_strtoul(argv[3],NULL,16);
34         if (offset > 0x40) {
35                 printf("Wrong offset : 0x%x\n",offset);
36                 return cmd_usage(cmdtp);
37         }
38         dm9000_write_srom_word(offset, value);
39         return (0);
40 }
41
42 int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
43         if (argc < 2)
44                 return cmd_usage(cmdtp);
45
46         if (strcmp (argv[1],"read") == 0)
47                 return (do_read_dm9000_eeprom(cmdtp,flag,argc,argv));
48         else if (strcmp (argv[1],"write") == 0)
49                 return (do_write_dm9000_eeprom(cmdtp,flag,argc,argv));
50         else
51                 return cmd_usage(cmdtp);
52 }
53
54 U_BOOT_CMD(
55         dm9000ee,4,1,do_dm9000_eeprom,
56         "Read/Write eeprom connected to Ethernet Controller",
57         "\ndm9000ee write <word offset> <value> \n"
58         "\tdm9000ee read \n"
59         "\tword:\t\t00-02 : MAC Address\n"
60         "\t\t\t03-07 : DM9000 Configuration\n"
61         "\t\t\t08-63 : User data"
62 );