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a68d3ed0 WD |
1 | /* |
2 | * (C) Copyright 2000-2002 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
6 | * Andreas Heppel <aheppel@sysgo.de> | |
7 | ||
8 | * See file CREDITS for list of people who contributed to this | |
9 | * project. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation; either version 2 of | |
14 | * the License, or (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
24 | * MA 02111-1307 USA | |
25 | */ | |
26 | ||
27 | /************************************************************************** | |
28 | * | |
29 | * Support for persistent environment data | |
30 | * | |
31 | * The "environment" is stored as a list of '\0' terminated | |
32 | * "name=value" strings. The end of the list is marked by a double | |
33 | * '\0'. New entries are always added at the end. Deleting an entry | |
34 | * shifts the remaining entries to the front. Replacing an entry is a | |
35 | * combination of deleting the old value and adding the new one. | |
36 | * | |
37 | * The environment is preceeded by a 32 bit CRC over the data part. | |
38 | * | |
39 | ************************************************************************** | |
40 | */ | |
41 | ||
42 | #include <common.h> | |
43 | #include <command.h> | |
44 | #include <environment.h> | |
2a3cb020 | 45 | #include <watchdog.h> |
281e00a3 | 46 | #include <serial.h> |
a68d3ed0 WD |
47 | #include <linux/stddef.h> |
48 | #include <asm/byteorder.h> | |
49 | #if (CONFIG_COMMANDS & CFG_CMD_NET) | |
50 | #include <net.h> | |
51 | #endif | |
52 | ||
5779d8d9 WD |
53 | #if !defined(CFG_ENV_IS_IN_NVRAM) && \ |
54 | !defined(CFG_ENV_IS_IN_EEPROM) && \ | |
55 | !defined(CFG_ENV_IS_IN_FLASH) && \ | |
56 | !defined(CFG_ENV_IS_IN_DATAFLASH) && \ | |
13a5695b | 57 | !defined(CFG_ENV_IS_IN_NAND) && \ |
5779d8d9 WD |
58 | !defined(CFG_ENV_IS_NOWHERE) |
59 | # error Define one of CFG_ENV_IS_IN_{NVRAM|EEPROM|FLASH|DATAFLASH|NOWHERE} | |
a68d3ed0 WD |
60 | #endif |
61 | ||
62 | #define XMK_STR(x) #x | |
63 | #define MK_STR(x) XMK_STR(x) | |
64 | ||
65 | /************************************************************************ | |
66 | ************************************************************************/ | |
67 | ||
68 | /* Function that returns a character from the environment */ | |
69 | extern uchar (*env_get_char)(int); | |
70 | ||
71 | /* Function that returns a pointer to a value from the environment */ | |
72 | /* (Only memory version supported / needed). */ | |
73 | extern uchar *env_get_addr(int); | |
74 | ||
75 | /* Function that updates CRC of the enironment */ | |
76 | extern void env_crc_update (void); | |
77 | ||
78 | /************************************************************************ | |
79 | ************************************************************************/ | |
80 | ||
81 | static int envmatch (uchar *, int); | |
82 | ||
83 | /* | |
84 | * Table with supported baudrates (defined in config_xyz.h) | |
85 | */ | |
86 | static const unsigned long baudrate_table[] = CFG_BAUDRATE_TABLE; | |
87 | #define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0])) | |
88 | ||
89 | ||
90 | /************************************************************************ | |
91 | * Command interface: print one or all environment variables | |
92 | */ | |
93 | ||
94 | int do_printenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
95 | { | |
96 | int i, j, k, nxt; | |
97 | int rcode = 0; | |
98 | ||
99 | if (argc == 1) { /* Print all env variables */ | |
100 | for (i=0; env_get_char(i) != '\0'; i=nxt+1) { | |
101 | for (nxt=i; env_get_char(nxt) != '\0'; ++nxt) | |
102 | ; | |
103 | for (k=i; k<nxt; ++k) | |
104 | putc(env_get_char(k)); | |
105 | putc ('\n'); | |
106 | ||
107 | if (ctrlc()) { | |
108 | puts ("\n ** Abort\n"); | |
109 | return 1; | |
110 | } | |
111 | } | |
112 | ||
113 | printf("\nEnvironment size: %d/%d bytes\n", i, ENV_SIZE); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
118 | for (i=1; i<argc; ++i) { /* print single env variables */ | |
119 | char *name = argv[i]; | |
120 | ||
121 | k = -1; | |
122 | ||
123 | for (j=0; env_get_char(j) != '\0'; j=nxt+1) { | |
124 | ||
125 | for (nxt=j; env_get_char(nxt) != '\0'; ++nxt) | |
126 | ; | |
77ddac94 | 127 | k = envmatch((uchar *)name, j); |
a68d3ed0 WD |
128 | if (k < 0) { |
129 | continue; | |
130 | } | |
131 | puts (name); | |
132 | putc ('='); | |
133 | while (k < nxt) | |
134 | putc(env_get_char(k++)); | |
135 | putc ('\n'); | |
136 | break; | |
137 | } | |
138 | if (k < 0) { | |
139 | printf ("## Error: \"%s\" not defined\n", name); | |
140 | rcode ++; | |
141 | } | |
142 | } | |
143 | return rcode; | |
144 | } | |
145 | ||
146 | /************************************************************************ | |
147 | * Set a new environment variable, | |
148 | * or replace or delete an existing one. | |
149 | * | |
150 | * This function will ONLY work with a in-RAM copy of the environment | |
151 | */ | |
152 | ||
153 | int _do_setenv (int flag, int argc, char *argv[]) | |
154 | { | |
155 | DECLARE_GLOBAL_DATA_PTR; | |
156 | ||
157 | int i, len, oldval; | |
158 | int console = -1; | |
159 | uchar *env, *nxt = NULL; | |
77ddac94 | 160 | char *name; |
a68d3ed0 WD |
161 | bd_t *bd = gd->bd; |
162 | ||
163 | uchar *env_data = env_get_addr(0); | |
164 | ||
165 | if (!env_data) /* need copy in RAM */ | |
166 | return 1; | |
167 | ||
168 | name = argv[1]; | |
169 | ||
170 | /* | |
171 | * search if variable with this name already exists | |
172 | */ | |
173 | oldval = -1; | |
174 | for (env=env_data; *env; env=nxt+1) { | |
175 | for (nxt=env; *nxt; ++nxt) | |
176 | ; | |
77ddac94 | 177 | if ((oldval = envmatch((uchar *)name, env-env_data)) >= 0) |
a68d3ed0 WD |
178 | break; |
179 | } | |
180 | ||
181 | /* | |
182 | * Delete any existing definition | |
183 | */ | |
184 | if (oldval >= 0) { | |
185 | #ifndef CONFIG_ENV_OVERWRITE | |
186 | ||
187 | /* | |
0587597c SR |
188 | * Ethernet Address and serial# can be set only once, |
189 | * ver is readonly. | |
a68d3ed0 WD |
190 | */ |
191 | if ( (strcmp (name, "serial#") == 0) || | |
192 | ((strcmp (name, "ethaddr") == 0) | |
193 | #if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR) | |
77ddac94 | 194 | && (strcmp ((char *)env_get_addr(oldval),MK_STR(CONFIG_ETHADDR)) != 0) |
a68d3ed0 WD |
195 | #endif /* CONFIG_OVERWRITE_ETHADDR_ONCE && CONFIG_ETHADDR */ |
196 | ) ) { | |
197 | printf ("Can't overwrite \"%s\"\n", name); | |
198 | return 1; | |
199 | } | |
200 | #endif | |
201 | ||
202 | /* Check for console redirection */ | |
203 | if (strcmp(name,"stdin") == 0) { | |
204 | console = stdin; | |
205 | } else if (strcmp(name,"stdout") == 0) { | |
206 | console = stdout; | |
207 | } else if (strcmp(name,"stderr") == 0) { | |
208 | console = stderr; | |
209 | } | |
210 | ||
211 | if (console != -1) { | |
212 | if (argc < 3) { /* Cannot delete it! */ | |
213 | printf("Can't delete \"%s\"\n", name); | |
214 | return 1; | |
215 | } | |
216 | ||
217 | /* Try assigning specified device */ | |
218 | if (console_assign (console, argv[2]) < 0) | |
219 | return 1; | |
281e00a3 WD |
220 | |
221 | #ifdef CONFIG_SERIAL_MULTI | |
222 | if (serial_assign (argv[2]) < 0) | |
223 | return 1; | |
224 | #endif | |
a68d3ed0 WD |
225 | } |
226 | ||
227 | /* | |
228 | * Switch to new baudrate if new baudrate is supported | |
229 | */ | |
230 | if (strcmp(argv[1],"baudrate") == 0) { | |
231 | int baudrate = simple_strtoul(argv[2], NULL, 10); | |
232 | int i; | |
233 | for (i=0; i<N_BAUDRATES; ++i) { | |
234 | if (baudrate == baudrate_table[i]) | |
235 | break; | |
236 | } | |
237 | if (i == N_BAUDRATES) { | |
238 | printf ("## Baudrate %d bps not supported\n", | |
239 | baudrate); | |
240 | return 1; | |
241 | } | |
242 | printf ("## Switch baudrate to %d bps and press ENTER ...\n", | |
243 | baudrate); | |
244 | udelay(50000); | |
245 | gd->baudrate = baudrate; | |
d0fb80c3 WD |
246 | #ifdef CONFIG_PPC |
247 | gd->bd->bi_baudrate = baudrate; | |
248 | #endif | |
249 | ||
a68d3ed0 WD |
250 | serial_setbrg (); |
251 | udelay(50000); | |
252 | for (;;) { | |
253 | if (getc() == '\r') | |
254 | break; | |
255 | } | |
256 | } | |
257 | ||
258 | if (*++nxt == '\0') { | |
259 | if (env > env_data) { | |
260 | env--; | |
261 | } else { | |
262 | *env = '\0'; | |
263 | } | |
264 | } else { | |
265 | for (;;) { | |
266 | *env = *nxt++; | |
267 | if ((*env == '\0') && (*nxt == '\0')) | |
268 | break; | |
269 | ++env; | |
270 | } | |
271 | } | |
272 | *++env = '\0'; | |
273 | } | |
274 | ||
275 | #ifdef CONFIG_NET_MULTI | |
276 | if (strncmp(name, "eth", 3) == 0) { | |
277 | char *end; | |
278 | int num = simple_strtoul(name+3, &end, 10); | |
279 | ||
280 | if (strcmp(end, "addr") == 0) { | |
281 | eth_set_enetaddr(num, argv[2]); | |
282 | } | |
283 | } | |
284 | #endif | |
285 | ||
286 | ||
287 | /* Delete only ? */ | |
288 | if ((argc < 3) || argv[2] == NULL) { | |
289 | env_crc_update (); | |
290 | return 0; | |
291 | } | |
292 | ||
293 | /* | |
294 | * Append new definition at the end | |
295 | */ | |
296 | for (env=env_data; *env || *(env+1); ++env) | |
297 | ; | |
298 | if (env > env_data) | |
299 | ++env; | |
300 | /* | |
301 | * Overflow when: | |
302 | * "name" + "=" + "val" +"\0\0" > ENV_SIZE - (env-env_data) | |
303 | */ | |
304 | len = strlen(name) + 2; | |
305 | /* add '=' for first arg, ' ' for all others */ | |
306 | for (i=2; i<argc; ++i) { | |
307 | len += strlen(argv[i]) + 1; | |
308 | } | |
309 | if (len > (&env_data[ENV_SIZE]-env)) { | |
310 | printf ("## Error: environment overflow, \"%s\" deleted\n", name); | |
311 | return 1; | |
312 | } | |
313 | while ((*env = *name++) != '\0') | |
314 | env++; | |
315 | for (i=2; i<argc; ++i) { | |
316 | char *val = argv[i]; | |
317 | ||
318 | *env = (i==2) ? '=' : ' '; | |
319 | while ((*++env = *val++) != '\0') | |
320 | ; | |
321 | } | |
322 | ||
323 | /* end is marked with double '\0' */ | |
324 | *++env = '\0'; | |
325 | ||
326 | /* Update CRC */ | |
327 | env_crc_update (); | |
328 | ||
329 | /* | |
330 | * Some variables should be updated when the corresponding | |
331 | * entry in the enviornment is changed | |
332 | */ | |
333 | ||
334 | if (strcmp(argv[1],"ethaddr") == 0) { | |
335 | char *s = argv[2]; /* always use only one arg */ | |
336 | char *e; | |
337 | for (i=0; i<6; ++i) { | |
338 | bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0; | |
339 | if (s) s = (*e) ? e+1 : e; | |
340 | } | |
341 | #ifdef CONFIG_NET_MULTI | |
342 | eth_set_enetaddr(0, argv[2]); | |
343 | #endif | |
344 | return 0; | |
345 | } | |
346 | ||
347 | if (strcmp(argv[1],"ipaddr") == 0) { | |
348 | char *s = argv[2]; /* always use only one arg */ | |
349 | char *e; | |
350 | unsigned long addr; | |
351 | bd->bi_ip_addr = 0; | |
352 | for (addr=0, i=0; i<4; ++i) { | |
353 | ulong val = s ? simple_strtoul(s, &e, 10) : 0; | |
354 | addr <<= 8; | |
355 | addr |= (val & 0xFF); | |
356 | if (s) s = (*e) ? e+1 : e; | |
357 | } | |
358 | bd->bi_ip_addr = htonl(addr); | |
359 | return 0; | |
360 | } | |
361 | if (strcmp(argv[1],"loadaddr") == 0) { | |
362 | load_addr = simple_strtoul(argv[2], NULL, 16); | |
363 | return 0; | |
364 | } | |
365 | #if (CONFIG_COMMANDS & CFG_CMD_NET) | |
366 | if (strcmp(argv[1],"bootfile") == 0) { | |
367 | copy_filename (BootFile, argv[2], sizeof(BootFile)); | |
368 | return 0; | |
369 | } | |
370 | #endif /* CFG_CMD_NET */ | |
c7de829c | 371 | |
0587597c | 372 | #ifdef CONFIG_AMIGAONEG3SE |
c7de829c WD |
373 | if (strcmp(argv[1], "vga_fg_color") == 0 || |
374 | strcmp(argv[1], "vga_bg_color") == 0 ) { | |
375 | extern void video_set_color(unsigned char attr); | |
376 | extern unsigned char video_get_attr(void); | |
377 | ||
378 | video_set_color(video_get_attr()); | |
379 | return 0; | |
380 | } | |
381 | #endif /* CONFIG_AMIGAONEG3SE */ | |
382 | ||
a68d3ed0 WD |
383 | return 0; |
384 | } | |
385 | ||
386 | void setenv (char *varname, char *varvalue) | |
387 | { | |
388 | char *argv[4] = { "setenv", varname, varvalue, NULL }; | |
389 | _do_setenv (0, 3, argv); | |
390 | } | |
391 | ||
392 | int do_setenv ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
393 | { | |
394 | if (argc < 2) { | |
395 | printf ("Usage:\n%s\n", cmdtp->usage); | |
396 | return 1; | |
397 | } | |
398 | ||
399 | return _do_setenv (flag, argc, argv); | |
400 | } | |
401 | ||
402 | /************************************************************************ | |
403 | * Prompt for environment variable | |
404 | */ | |
405 | ||
406 | #if (CONFIG_COMMANDS & CFG_CMD_ASKENV) | |
407 | int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
408 | { | |
409 | extern char console_buffer[CFG_CBSIZE]; | |
410 | char message[CFG_CBSIZE]; | |
411 | int size = CFG_CBSIZE - 1; | |
412 | int len; | |
413 | char *local_args[4]; | |
414 | ||
415 | local_args[0] = argv[0]; | |
416 | local_args[1] = argv[1]; | |
417 | local_args[2] = NULL; | |
418 | local_args[3] = NULL; | |
419 | ||
420 | if (argc < 2) { | |
421 | printf ("Usage:\n%s\n", cmdtp->usage); | |
422 | return 1; | |
423 | } | |
424 | /* Check the syntax */ | |
425 | switch (argc) { | |
426 | case 1: | |
427 | printf ("Usage:\n%s\n", cmdtp->usage); | |
428 | return 1; | |
429 | ||
430 | case 2: /* askenv envname */ | |
431 | sprintf (message, "Please enter '%s':", argv[1]); | |
432 | break; | |
433 | ||
434 | case 3: /* askenv envname size */ | |
435 | sprintf (message, "Please enter '%s':", argv[1]); | |
436 | size = simple_strtoul (argv[2], NULL, 10); | |
437 | break; | |
438 | ||
439 | default: /* askenv envname message1 ... messagen size */ | |
440 | { | |
441 | int i; | |
442 | int pos = 0; | |
443 | ||
444 | for (i = 2; i < argc - 1; i++) { | |
445 | if (pos) { | |
446 | message[pos++] = ' '; | |
447 | } | |
448 | strcpy (message+pos, argv[i]); | |
449 | pos += strlen(argv[i]); | |
450 | } | |
451 | message[pos] = '\0'; | |
452 | size = simple_strtoul (argv[argc - 1], NULL, 10); | |
453 | } | |
454 | break; | |
455 | } | |
456 | ||
457 | if (size >= CFG_CBSIZE) | |
458 | size = CFG_CBSIZE - 1; | |
459 | ||
460 | if (size <= 0) | |
461 | return 1; | |
462 | ||
463 | /* prompt for input */ | |
464 | len = readline (message); | |
465 | ||
466 | if (size < len) | |
467 | console_buffer[size] = '\0'; | |
468 | ||
469 | len = 2; | |
470 | if (console_buffer[0] != '\0') { | |
471 | local_args[2] = console_buffer; | |
472 | len = 3; | |
473 | } | |
474 | ||
475 | /* Continue calling setenv code */ | |
476 | return _do_setenv (flag, len, local_args); | |
477 | } | |
478 | #endif /* CFG_CMD_ASKENV */ | |
479 | ||
480 | /************************************************************************ | |
481 | * Look up variable from environment, | |
482 | * return address of storage for that variable, | |
483 | * or NULL if not found | |
484 | */ | |
485 | ||
77ddac94 | 486 | char *getenv (char *name) |
a68d3ed0 WD |
487 | { |
488 | int i, nxt; | |
489 | ||
2a3cb020 WD |
490 | WATCHDOG_RESET(); |
491 | ||
a68d3ed0 WD |
492 | for (i=0; env_get_char(i) != '\0'; i=nxt+1) { |
493 | int val; | |
494 | ||
495 | for (nxt=i; env_get_char(nxt) != '\0'; ++nxt) { | |
496 | if (nxt >= CFG_ENV_SIZE) { | |
497 | return (NULL); | |
498 | } | |
499 | } | |
77ddac94 | 500 | if ((val=envmatch((uchar *)name, i)) < 0) |
a68d3ed0 | 501 | continue; |
77ddac94 | 502 | return ((char *)env_get_addr(val)); |
a68d3ed0 WD |
503 | } |
504 | ||
505 | return (NULL); | |
506 | } | |
507 | ||
77ddac94 | 508 | int getenv_r (char *name, char *buf, unsigned len) |
a68d3ed0 WD |
509 | { |
510 | int i, nxt; | |
511 | ||
512 | for (i=0; env_get_char(i) != '\0'; i=nxt+1) { | |
513 | int val, n; | |
514 | ||
515 | for (nxt=i; env_get_char(nxt) != '\0'; ++nxt) { | |
516 | if (nxt >= CFG_ENV_SIZE) { | |
517 | return (-1); | |
518 | } | |
519 | } | |
77ddac94 | 520 | if ((val=envmatch((uchar *)name, i)) < 0) |
a68d3ed0 WD |
521 | continue; |
522 | /* found; copy out */ | |
523 | n = 0; | |
524 | while ((len > n++) && (*buf++ = env_get_char(val++)) != '\0') | |
525 | ; | |
526 | if (len == n) | |
527 | *buf = '\0'; | |
528 | return (n); | |
529 | } | |
530 | return (-1); | |
531 | } | |
532 | ||
533 | #if defined(CFG_ENV_IS_IN_NVRAM) || defined(CFG_ENV_IS_IN_EEPROM) || \ | |
534 | ((CONFIG_COMMANDS & (CFG_CMD_ENV|CFG_CMD_FLASH)) == \ | |
535 | (CFG_CMD_ENV|CFG_CMD_FLASH)) | |
536 | int do_saveenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
537 | { | |
538 | extern char * env_name_spec; | |
539 | ||
540 | printf ("Saving Environment to %s...\n", env_name_spec); | |
541 | ||
542 | return (saveenv() ? 1 : 0); | |
543 | } | |
8bde7f77 WD |
544 | |
545 | ||
a68d3ed0 WD |
546 | #endif |
547 | ||
548 | ||
549 | /************************************************************************ | |
550 | * Match a name / name=value pair | |
551 | * | |
552 | * s1 is either a simple 'name', or a 'name=value' pair. | |
553 | * i2 is the environment index for a 'name2=value2' pair. | |
554 | * If the names match, return the index for the value2, else NULL. | |
555 | */ | |
556 | ||
557 | static int | |
558 | envmatch (uchar *s1, int i2) | |
559 | { | |
560 | ||
561 | while (*s1 == env_get_char(i2++)) | |
562 | if (*s1++ == '=') | |
563 | return(i2); | |
564 | if (*s1 == '\0' && env_get_char(i2-1) == '=') | |
565 | return(i2); | |
566 | return(-1); | |
567 | } | |
8bde7f77 WD |
568 | |
569 | ||
570 | /**************************************************/ | |
571 | ||
0d498393 WD |
572 | U_BOOT_CMD( |
573 | printenv, CFG_MAXARGS, 1, do_printenv, | |
8bde7f77 WD |
574 | "printenv- print environment variables\n", |
575 | "\n - print values of all environment variables\n" | |
576 | "printenv name ...\n" | |
577 | " - print value of environment variable 'name'\n" | |
578 | ); | |
579 | ||
0d498393 WD |
580 | U_BOOT_CMD( |
581 | setenv, CFG_MAXARGS, 0, do_setenv, | |
8bde7f77 WD |
582 | "setenv - set environment variables\n", |
583 | "name value ...\n" | |
584 | " - set environment variable 'name' to 'value ...'\n" | |
585 | "setenv name\n" | |
586 | " - delete environment variable 'name'\n" | |
587 | ); | |
588 | ||
a5bbcc3c WD |
589 | #if defined(CFG_ENV_IS_IN_NVRAM) || defined(CFG_ENV_IS_IN_EEPROM) || \ |
590 | ((CONFIG_COMMANDS & (CFG_CMD_ENV|CFG_CMD_FLASH)) == \ | |
591 | (CFG_CMD_ENV|CFG_CMD_FLASH)) | |
0d498393 WD |
592 | U_BOOT_CMD( |
593 | saveenv, 1, 0, do_saveenv, | |
8bde7f77 WD |
594 | "saveenv - save environment variables to persistent storage\n", |
595 | NULL | |
596 | ); | |
597 | ||
598 | #endif /* CFG_CMD_ENV */ | |
599 | ||
600 | #if (CONFIG_COMMANDS & CFG_CMD_ASKENV) | |
601 | ||
0d498393 WD |
602 | U_BOOT_CMD( |
603 | askenv, CFG_MAXARGS, 1, do_askenv, | |
8bde7f77 WD |
604 | "askenv - get environment variables from stdin\n", |
605 | "name [message] [size]\n" | |
606 | " - get environment variable 'name' from stdin (max 'size' chars)\n" | |
607 | "askenv name\n" | |
608 | " - get environment variable 'name' from stdin\n" | |
609 | "askenv name size\n" | |
610 | " - get environment variable 'name' from stdin (max 'size' chars)\n" | |
611 | "askenv name [message] size\n" | |
612 | " - display 'message' string and get environment variable 'name'" | |
613 | "from stdin (max 'size' chars)\n" | |
614 | ); | |
615 | #endif /* CFG_CMD_ASKENV */ | |
616 | ||
617 | #if (CONFIG_COMMANDS & CFG_CMD_RUN) | |
618 | int do_run (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); | |
0d498393 WD |
619 | U_BOOT_CMD( |
620 | run, CFG_MAXARGS, 1, do_run, | |
8bde7f77 WD |
621 | "run - run commands in an environment variable\n", |
622 | "var [...]\n" | |
623 | " - run the commands in the environment variable(s) 'var'\n" | |
624 | ); | |
625 | #endif /* CFG_CMD_RUN */ |