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wdenk5a95f6f2005-01-12 00:38:03 +00001/*
2 * (C) Copyright 2004
3 * Robin Getz rgetz@blacfin.uclinux.org
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 * Heavily borrowed from the following peoples GPL'ed software:
24 * - Wolfgang Denk, DENX Software Engineering, wd@denx.de
25 * Das U-boot
26 * - Ladislav Michl ladis@linux-mips.org
27 * A rejected patch on the U-Boot mailing list
28 */
29
30#include <common.h>
31#include <exports.h>
32#include "../drivers/smc91111.h"
33
34#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE
35#define EEPROM 0x1;
36#define MAC 0x2;
37#define UNKNOWN 0x4;
38
39void dump_reg (void);
40void dump_eeprom (void);
41int write_eeprom_reg (int, int);
42void copy_from_eeprom (void);
43void print_MAC (void);
44int read_eeprom_reg (int);
45void print_macaddr (void);
46
47int smc91111_eeprom (int argc, char *argv[])
48{
49 int c, i, j, done, line, reg, value, start, what;
50 char input[50];
51
52 /* Print the ABI version */
53 app_startup (argv);
54 if (XF_VERSION != (int) get_version ()) {
55 printf ("Expects ABI version %d\n", XF_VERSION);
56 printf ("Actual U-Boot ABI version %d\n",
57 (int) get_version ());
58 printf ("Can't run\n\n");
59 return (0);
60 }
61
62 asm ("p2.h = 0xFFC0;");
63 asm ("p2.l = 0x0730;");
64 asm ("r0 = 0x01;");
65 asm ("w[p2] = r0;");
66 asm ("ssync;");
67
68 asm ("p2.h = 0xffc0;");
69 asm ("p2.l = 0x0708;");
70 asm ("r0 = 0x01;");
71 asm ("w[p2] = r0;");
72 asm ("ssync;");
73
74 if ((SMC_inw (BANK_SELECT) & 0xFF00) != 0x3300) {
75 printf ("Can't find SMSC91111\n");
76 return (0);
77 }
78
79 done = 0;
80 what = UNKNOWN;
81 printf ("\n");
82 while (!done) {
83 /* print the prompt */
84 printf ("SMC91111> ");
85 line = 0;
86 i = 0;
87 start = 1;
88 while (!line) {
89 /* Wait for a keystroke */
90 while (!tstc ());
91
92 c = getc ();
93 /* Make Uppercase */
94 if (c >= 'Z')
95 c -= ('a' - 'A');
96 /* printf(" |%02x| ",c); */
97
98 switch (c) {
99 case '\r': /* Enter */
100 case '\n':
101 input[i] = 0;
102 puts ("\r\n");
103 line = 1;
104 break;
105 case '\0': /* nul */
106 continue;
107
108 case 0x03: /* ^C - break */
109 input[0] = 0;
110 i = 0;
111 line = 1;
112 done = 1;
113 break;
114
115 case 0x5F:
116 case 0x08: /* ^H - backspace */
117 case 0x7F: /* DEL - backspace */
118 if (i > 0) {
119 puts ("\b \b");
120 i--;
121 }
122 break;
123 default:
124 if (start) {
125 if ((c == 'W') || (c == 'D')
126 || (c == 'M') || (c == 'C')
127 || (c == 'P')) {
128 putc (c);
129 input[i] = c;
130 if (i <= 45)
131 i++;
132 start = 0;
133 }
134 } else {
135 if ((c >= '0' && c <= '9')
136 || (c >= 'A' && c <= 'F')
137 || (c == 'E') || (c == 'M')
138 || (c == ' ')) {
139 putc (c);
140 input[i] = c;
141 if (i <= 45)
142 i++;
143 break;
144 }
145 }
146 break;
147 }
148 }
149
150 for (; i < 49; i++)
151 input[i] = 0;
152
153 switch (input[0]) {
154 case ('W'):
155 /* Line should be w reg value */
156 i = 0;
157 reg = 0;
158 value = 0;
159 /* Skip to the next space or end) */
160 while ((input[i] != ' ') && (input[i] != 0))
161 i++;
162
163 if (input[i] != 0)
164 i++;
165
166 /* Are we writing to EEPROM or MAC */
167 switch (input[i]) {
168 case ('E'):
169 what = EEPROM;
170 break;
171 case ('M'):
172 what = MAC;
173 break;
174 default:
175 what = UNKNOWN;
176 break;
177 }
178
179 /* skip to the next space or end */
180 while ((input[i] != ' ') && (input[i] != 0))
181 i++;
182 if (input[i] != 0)
183 i++;
184
185 /* Find register to write into */
186 j = 0;
187 while ((input[i] != ' ') && (input[i] != 0)) {
188 j = input[i] - 0x30;
189 if (j >= 0xA) {
190 j -= 0x07;
191 }
192 reg = (reg * 0x10) + j;
193 i++;
194 }
195
196 while ((input[i] != ' ') && (input[i] != 0))
197 i++;
198
199 if (input[i] != 0)
200 i++;
201 else
202 what = UNKNOWN;
203
204 /* Get the value to write */
205 j = 0;
206 while ((input[i] != ' ') && (input[i] != 0)) {
207 j = input[i] - 0x30;
208 if (j >= 0xA) {
209 j -= 0x07;
210 }
211 value = (value * 0x10) + j;
212 i++;
213 }
214
215 switch (what) {
216 case 1:
Wolfgang Denk0afe5192006-03-12 02:10:00 +0100217 printf ("Writing EEPROM register %02x with %04x\n", reg, value);
wdenk5a95f6f2005-01-12 00:38:03 +0000218 write_eeprom_reg (value, reg);
219 break;
220 case 2:
Wolfgang Denk0afe5192006-03-12 02:10:00 +0100221 printf ("Writing MAC register bank %i, reg %02x with %04x\n", reg >> 4, reg & 0xE, value);
wdenk5a95f6f2005-01-12 00:38:03 +0000222 SMC_SELECT_BANK (reg >> 4);
223 SMC_outw (value, reg & 0xE);
224 break;
225 default:
226 printf ("Wrong\n");
227 break;
228 }
229 break;
230 case ('D'):
231 dump_eeprom ();
232 break;
233 case ('M'):
234 dump_reg ();
235 break;
236 case ('C'):
237 copy_from_eeprom ();
238 break;
239 case ('P'):
240 print_macaddr ();
241 break;
242 default:
243 break;
244 }
245
246 }
247
248 return (0);
249}
250
251void copy_from_eeprom (void)
252{
253 int i;
254
255 SMC_SELECT_BANK (1);
256 SMC_outw ((SMC_inw (CTL_REG) & !CTL_EEPROM_SELECT) | CTL_RELOAD,
257 CTL_REG);
258 i = 100;
259 while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --i)
260 udelay (100);
261 if (i == 0) {
262 printf ("Timeout Refreshing EEPROM registers\n");
263 } else {
264 printf ("EEPROM contents copied to MAC\n");
265 }
266
267}
268
269void print_macaddr (void)
270{
271 int i, j, k, mac[6];
272
273 printf ("Current MAC Address in SMSC91111 ");
274 SMC_SELECT_BANK (1);
275 for (i = 0; i < 5; i++) {
276 printf ("%02x:", SMC_inb (ADDR0_REG + i));
277 }
278
279 printf ("%02x\n", SMC_inb (ADDR0_REG + 5));
280
281 i = 0;
282 for (j = 0x20; j < 0x23; j++) {
283 k = read_eeprom_reg (j);
284 mac[i] = k & 0xFF;
285 i++;
286 mac[i] = k >> 8;
287 i++;
288 }
289
290 printf ("Current MAC Address in EEPROM ");
291 for (i = 0; i < 5; i++)
292 printf ("%02x:", mac[i]);
293 printf ("%02x\n", mac[5]);
294
295}
296void dump_eeprom (void)
297{
298 int j, k;
299
300 printf ("IOS2-0 ");
301 for (j = 0; j < 8; j++) {
302 printf ("%03x ", j);
303 }
304 printf ("\n");
305
306 for (k = 0; k < 4; k++) {
307 if (k == 0)
308 printf ("CONFIG ");
309 if (k == 1)
310 printf ("BASE ");
311 if ((k == 2) || (k == 3))
312 printf (" ");
313 for (j = 0; j < 0x20; j += 4) {
314 printf ("%02x:%04x ", j + k, read_eeprom_reg (j + k));
315 }
316 printf ("\n");
317 }
318
319 for (j = 0x20; j < 0x40; j++) {
320 if ((j & 0x07) == 0)
321 printf ("\n");
322 printf ("%02x:%04x ", j, read_eeprom_reg (j));
323 }
324 printf ("\n");
325
326}
327
328int read_eeprom_reg (int reg)
329{
330 int timeout;
331
332 SMC_SELECT_BANK (2);
333 SMC_outw (reg, PTR_REG);
334
335 SMC_SELECT_BANK (1);
336 SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_RELOAD,
337 CTL_REG);
338 timeout = 100;
339 while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --timeout)
340 udelay (100);
341 if (timeout == 0) {
342 printf ("Timeout Reading EEPROM register %02x\n", reg);
343 return 0;
344 }
345
346 return SMC_inw (GP_REG);
347
348}
349
350int write_eeprom_reg (int value, int reg)
351{
352 int timeout;
353
354 SMC_SELECT_BANK (2);
355 SMC_outw (reg, PTR_REG);
356
357 SMC_SELECT_BANK (1);
358 SMC_outw (value, GP_REG);
359 SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_STORE, CTL_REG);
360 timeout = 100;
361 while ((SMC_inw (CTL_REG) & CTL_STORE) && --timeout)
362 udelay (100);
363 if (timeout == 0) {
364 printf ("Timeout Writing EEPROM register %02x\n", reg);
365 return 0;
366 }
367
368 return 1;
369
370}
371
372void dump_reg (void)
373{
374 int i, j;
375
376 printf (" ");
377 for (j = 0; j < 4; j++) {
378 printf ("Bank%i ", j);
379 }
380 printf ("\n");
381 for (i = 0; i < 0xF; i += 2) {
382 printf ("%02x ", i);
383 for (j = 0; j < 4; j++) {
384 SMC_SELECT_BANK (j);
385 printf ("%04x ", SMC_inw (i));
386 }
387 printf ("\n");
388 }
389}