3 * Ladislav Michl, 2N Telekomunikace, michl@2n.cz
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * Some code shamelessly stolen back from Robin Getz.
29 #include <timestamp.h>
31 #include "../drivers/net/smc91111.h"
33 static u16 read_eeprom_reg(struct eth_device *dev, u16 reg)
37 SMC_SELECT_BANK(dev, 2);
38 SMC_outw(dev, reg, PTR_REG);
40 SMC_SELECT_BANK(dev, 1);
41 SMC_outw(dev, SMC_inw (dev, CTL_REG) | CTL_EEPROM_SELECT | CTL_RELOAD,
44 while((SMC_inw (dev, CTL_REG) & CTL_RELOAD) && --timeout)
47 printf("Timeout Reading EEPROM register %02x\n", reg);
51 return SMC_inw (dev, GP_REG);
54 static int write_eeprom_reg(struct eth_device *dev, u16 value, u16 reg)
58 SMC_SELECT_BANK(dev, 2);
59 SMC_outw(dev, reg, PTR_REG);
61 SMC_SELECT_BANK(dev, 1);
62 SMC_outw(dev, value, GP_REG);
63 SMC_outw(dev, SMC_inw (dev, CTL_REG) | CTL_EEPROM_SELECT | CTL_STORE, CTL_REG);
65 while ((SMC_inw(dev, CTL_REG) & CTL_STORE) && --timeout)
68 printf("Timeout Writing EEPROM register %02x\n", reg);
75 static int write_data(struct eth_device *dev, u16 *buf, int len)
80 write_eeprom_reg(dev, *buf++, reg++);
85 static int verify_macaddr(struct eth_device *dev, char *s)
90 printf("MAC Address: ");
92 for (i = 0; i < 3; i++) {
93 reg = read_eeprom_reg(dev, 0x20 + i);
94 printf("%02x:%02x%c", reg & 0xff, reg >> 8, i != 2 ? ':' : '\n');
96 err |= reg != ((u16 *)s)[i];
102 static int set_mac(struct eth_device *dev, char *s)
107 /* turn string into mac value */
108 for (i = 0; i < 6; i++) {
109 eaddr[i] = simple_strtoul(s, &e, 16);
113 for (i = 0; i < 3; i++)
114 write_eeprom_reg(dev, *(((u16 *)eaddr) + i), 0x20 + i);
119 static int parse_element(char *s, unsigned char *buf, int len)
125 id = simple_strtoul(s, &p, 16);
137 buf[cnt++] = simple_strtoul(num, NULL, 16);
145 int eeprom(int argc, char *argv[])
148 unsigned char buf[58], *p;
150 struct eth_device dev = {
151 .iobase = CONFIG_SMC91111_BASE
155 if (get_version() != XF_VERSION) {
156 printf("Wrong XF_VERSION.\n");
157 printf("Application expects ABI version %d\n", XF_VERSION);
158 printf("Actual U-Boot ABI version %d\n", (int)get_version());
162 if ((SMC_inw (&dev, BANK_SELECT) & 0xFF00) != 0x3300) {
163 printf("SMSC91111 not found.\n");
167 /* Called without parameters - print MAC address */
169 verify_macaddr(&dev, NULL);
173 /* Print help message */
174 if (argv[1][1] == 'h') {
175 printf("VoiceBlue EEPROM writer\n");
176 printf("Built: %s at %s\n", U_BOOT_DATE, U_BOOT_TIME);
177 printf("Usage:\n\t<mac_address> [<element_1>] [<...>]\n");
181 /* Try to parse information elements */
184 for (i = 2; i < argc; i++) {
185 ret = parse_element(argv[i], p, len);
188 printf("Element %d: malformed\n", i - 1);
191 printf("Element %d: odd character count\n", i - 1);
194 printf("Out of EEPROM memory\n");
202 /* First argument (MAC) is mandatory */
203 set_mac(&dev, argv[1]);
204 if (verify_macaddr(&dev, argv[1])) {
205 printf("*** MAC address does not match! ***\n");
212 write_data(&dev, (u16 *)buf, sizeof(buf) >> 1);