]>
Commit | Line | Data |
---|---|---|
81a8824f | 1 | /* |
3f4978c7 HS |
2 | * (C) Copyright 2009 |
3 | * Sergey Kubushyn, himself, ksi@koi8.net | |
4 | * | |
5 | * Changes for unified multibus/multiadapter I2C support. | |
6 | * | |
81a8824f WD |
7 | * (C) Copyright 2001 |
8 | * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com. | |
9 | * | |
10 | * See file CREDITS for list of people who contributed to this | |
11 | * project. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License as | |
15 | * published by the Free Software Foundation; either version 2 of | |
16 | * the License, or (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
26 | * MA 02111-1307 USA | |
27 | */ | |
28 | ||
29 | /* | |
30 | * I2C Functions similar to the standard memory functions. | |
31 | * | |
32 | * There are several parameters in many of the commands that bear further | |
33 | * explanations: | |
34 | * | |
81a8824f WD |
35 | * {i2c_chip} is the I2C chip address (the first byte sent on the bus). |
36 | * Each I2C chip on the bus has a unique address. On the I2C data bus, | |
37 | * the address is the upper seven bits and the LSB is the "read/write" | |
38 | * bit. Note that the {i2c_chip} address specified on the command | |
39 | * line is not shifted up: e.g. a typical EEPROM memory chip may have | |
40 | * an I2C address of 0x50, but the data put on the bus will be 0xA0 | |
41 | * for write and 0xA1 for read. This "non shifted" address notation | |
42 | * matches at least half of the data sheets :-/. | |
43 | * | |
44 | * {addr} is the address (or offset) within the chip. Small memory | |
45 | * chips have 8 bit addresses. Large memory chips have 16 bit | |
46 | * addresses. Other memory chips have 9, 10, or 11 bit addresses. | |
47 | * Many non-memory chips have multiple registers and {addr} is used | |
48 | * as the register index. Some non-memory chips have only one register | |
49 | * and therefore don't need any {addr} parameter. | |
50 | * | |
51 | * The default {addr} parameter is one byte (.1) which works well for | |
52 | * memories and registers with 8 bits of address space. | |
53 | * | |
54 | * You can specify the length of the {addr} field with the optional .0, | |
55 | * .1, or .2 modifier (similar to the .b, .w, .l modifier). If you are | |
56 | * manipulating a single register device which doesn't use an address | |
57 | * field, use "0.0" for the address and the ".0" length field will | |
58 | * suppress the address in the I2C data stream. This also works for | |
59 | * successive reads using the I2C auto-incrementing memory pointer. | |
60 | * | |
61 | * If you are manipulating a large memory with 2-byte addresses, use | |
62 | * the .2 address modifier, e.g. 210.2 addresses location 528 (decimal). | |
63 | * | |
64 | * Then there are the unfortunate memory chips that spill the most | |
65 | * significant 1, 2, or 3 bits of address into the chip address byte. | |
66 | * This effectively makes one chip (logically) look like 2, 4, or | |
67 | * 8 chips. This is handled (awkwardly) by #defining | |
6d0f6bcf | 68 | * CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW and using the .1 modifier on the |
81a8824f WD |
69 | * {addr} field (since .1 is the default, it doesn't actually have to |
70 | * be specified). Examples: given a memory chip at I2C chip address | |
71 | * 0x50, the following would happen... | |
0f89c54b | 72 | * i2c md 50 0 10 display 16 bytes starting at 0x000 |
81a8824f | 73 | * On the bus: <S> A0 00 <E> <S> A1 <rd> ... <rd> |
0f89c54b | 74 | * i2c md 50 100 10 display 16 bytes starting at 0x100 |
81a8824f | 75 | * On the bus: <S> A2 00 <E> <S> A3 <rd> ... <rd> |
0f89c54b | 76 | * i2c md 50 210 10 display 16 bytes starting at 0x210 |
81a8824f WD |
77 | * On the bus: <S> A4 10 <E> <S> A5 <rd> ... <rd> |
78 | * This is awfully ugly. It would be nice if someone would think up | |
79 | * a better way of handling this. | |
80 | * | |
81 | * Adapted from cmd_mem.c which is copyright Wolfgang Denk (wd@denx.de). | |
82 | */ | |
83 | ||
84 | #include <common.h> | |
85 | #include <command.h> | |
735987c5 | 86 | #include <edid.h> |
67b23a32 | 87 | #include <environment.h> |
81a8824f | 88 | #include <i2c.h> |
67b23a32 | 89 | #include <malloc.h> |
81a8824f | 90 | #include <asm/byteorder.h> |
2515d843 | 91 | #include <linux/compiler.h> |
81a8824f | 92 | |
3f4978c7 HS |
93 | DECLARE_GLOBAL_DATA_PTR; |
94 | ||
81a8824f WD |
95 | /* Display values from last command. |
96 | * Memory modify remembered values are different from display memory. | |
97 | */ | |
98 | static uchar i2c_dp_last_chip; | |
99 | static uint i2c_dp_last_addr; | |
100 | static uint i2c_dp_last_alen; | |
101 | static uint i2c_dp_last_length = 0x10; | |
102 | ||
103 | static uchar i2c_mm_last_chip; | |
104 | static uint i2c_mm_last_addr; | |
105 | static uint i2c_mm_last_alen; | |
106 | ||
bb99ad6d BW |
107 | /* If only one I2C bus is present, the list of devices to ignore when |
108 | * the probe command is issued is represented by a 1D array of addresses. | |
109 | * When multiple buses are present, the list is an array of bus-address | |
110 | * pairs. The following macros take care of this */ | |
111 | ||
6d0f6bcf | 112 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
9a2accb4 | 113 | #if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS) |
bb99ad6d BW |
114 | static struct |
115 | { | |
116 | uchar bus; | |
117 | uchar addr; | |
6d0f6bcf | 118 | } i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES; |
bb99ad6d BW |
119 | #define GET_BUS_NUM i2c_get_bus_num() |
120 | #define COMPARE_BUS(b,i) (i2c_no_probes[(i)].bus == (b)) | |
121 | #define COMPARE_ADDR(a,i) (i2c_no_probes[(i)].addr == (a)) | |
122 | #define NO_PROBE_ADDR(i) i2c_no_probes[(i)].addr | |
123 | #else /* single bus */ | |
6d0f6bcf | 124 | static uchar i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES; |
bb99ad6d BW |
125 | #define GET_BUS_NUM 0 |
126 | #define COMPARE_BUS(b,i) ((b) == 0) /* Make compiler happy */ | |
127 | #define COMPARE_ADDR(a,i) (i2c_no_probes[(i)] == (a)) | |
128 | #define NO_PROBE_ADDR(i) i2c_no_probes[(i)] | |
3f4978c7 | 129 | #endif /* defined(CONFIG_SYS_I2C) */ |
bb99ad6d BW |
130 | |
131 | #define NUM_ELEMENTS_NOPROBE (sizeof(i2c_no_probes)/sizeof(i2c_no_probes[0])) | |
81a8824f WD |
132 | #endif |
133 | ||
a266fe95 FM |
134 | #define DISP_LINE_LEN 16 |
135 | ||
06afa388 MV |
136 | /** |
137 | * i2c_init_board() - Board-specific I2C bus init | |
138 | * | |
139 | * This function is the default no-op implementation of I2C bus | |
140 | * initialization. This function can be overriden by board-specific | |
141 | * implementation if needed. | |
142 | */ | |
2515d843 MV |
143 | __weak |
144 | void i2c_init_board(void) | |
c649dda5 | 145 | { |
c649dda5 | 146 | } |
c649dda5 | 147 | |
655b34a7 | 148 | /* TODO: Implement architecture-specific get/set functions */ |
06afa388 MV |
149 | |
150 | /** | |
151 | * i2c_get_bus_speed() - Return I2C bus speed | |
152 | * | |
153 | * This function is the default implementation of function for retrieveing | |
154 | * the current I2C bus speed in Hz. | |
155 | * | |
156 | * A driver implementing runtime switching of I2C bus speed must override | |
157 | * this function to report the speed correctly. Simple or legacy drivers | |
158 | * can use this fallback. | |
159 | * | |
160 | * Returns I2C bus speed in Hz. | |
161 | */ | |
3f4978c7 HS |
162 | #if !defined(CONFIG_SYS_I2C) |
163 | /* | |
164 | * TODO: Implement architecture-specific get/set functions | |
165 | * Should go away, if we switched completely to new multibus support | |
166 | */ | |
2515d843 MV |
167 | __weak |
168 | unsigned int i2c_get_bus_speed(void) | |
655b34a7 PT |
169 | { |
170 | return CONFIG_SYS_I2C_SPEED; | |
171 | } | |
655b34a7 | 172 | |
06afa388 MV |
173 | /** |
174 | * i2c_set_bus_speed() - Configure I2C bus speed | |
175 | * @speed: Newly set speed of the I2C bus in Hz | |
176 | * | |
177 | * This function is the default implementation of function for setting | |
178 | * the I2C bus speed in Hz. | |
179 | * | |
180 | * A driver implementing runtime switching of I2C bus speed must override | |
181 | * this function to report the speed correctly. Simple or legacy drivers | |
182 | * can use this fallback. | |
183 | * | |
184 | * Returns zero on success, negative value on error. | |
185 | */ | |
2515d843 MV |
186 | __weak |
187 | int i2c_set_bus_speed(unsigned int speed) | |
655b34a7 PT |
188 | { |
189 | if (speed != CONFIG_SYS_I2C_SPEED) | |
190 | return -1; | |
191 | ||
192 | return 0; | |
193 | } | |
3f4978c7 | 194 | #endif |
655b34a7 | 195 | |
06afa388 MV |
196 | /** |
197 | * get_alen() - Small parser helper function to get address length | |
198 | * | |
199 | * Returns the address length. | |
2c0dc990 FM |
200 | */ |
201 | static uint get_alen(char *arg) | |
202 | { | |
203 | int j; | |
204 | int alen; | |
205 | ||
206 | alen = 1; | |
207 | for (j = 0; j < 8; j++) { | |
208 | if (arg[j] == '.') { | |
209 | alen = arg[j+1] - '0'; | |
2c0dc990 FM |
210 | break; |
211 | } else if (arg[j] == '\0') | |
212 | break; | |
213 | } | |
214 | return alen; | |
215 | } | |
216 | ||
06afa388 MV |
217 | /** |
218 | * do_i2c_read() - Handle the "i2c read" command-line command | |
219 | * @cmdtp: Command data struct pointer | |
220 | * @flag: Command flag | |
221 | * @argc: Command-line argument count | |
222 | * @argv: Array of command-line arguments | |
223 | * | |
224 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
225 | * on error. | |
226 | * | |
652e5354 FM |
227 | * Syntax: |
228 | * i2c read {i2c_chip} {devaddr}{.0, .1, .2} {len} {memaddr} | |
229 | */ | |
54841ab5 | 230 | static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
652e5354 FM |
231 | { |
232 | u_char chip; | |
233 | uint devaddr, alen, length; | |
234 | u_char *memaddr; | |
652e5354 | 235 | |
47e26b1b | 236 | if (argc != 5) |
4c12eeb8 | 237 | return CMD_RET_USAGE; |
652e5354 FM |
238 | |
239 | /* | |
240 | * I2C chip address | |
241 | */ | |
242 | chip = simple_strtoul(argv[1], NULL, 16); | |
243 | ||
244 | /* | |
245 | * I2C data address within the chip. This can be 1 or | |
246 | * 2 bytes long. Some day it might be 3 bytes long :-). | |
247 | */ | |
248 | devaddr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 249 | alen = get_alen(argv[2]); |
7a92e53c | 250 | if (alen > 3) |
4c12eeb8 | 251 | return CMD_RET_USAGE; |
652e5354 FM |
252 | |
253 | /* | |
254 | * Length is the number of objects, not number of bytes. | |
255 | */ | |
256 | length = simple_strtoul(argv[3], NULL, 16); | |
257 | ||
258 | /* | |
259 | * memaddr is the address where to store things in memory | |
260 | */ | |
261 | memaddr = (u_char *)simple_strtoul(argv[4], NULL, 16); | |
262 | ||
263 | if (i2c_read(chip, devaddr, alen, memaddr, length) != 0) { | |
264 | puts ("Error reading the chip.\n"); | |
265 | return 1; | |
266 | } | |
267 | return 0; | |
268 | } | |
269 | ||
ff5d2dce YS |
270 | static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
271 | { | |
272 | u_char chip; | |
273 | uint devaddr, alen, length; | |
274 | u_char *memaddr; | |
275 | ||
276 | if (argc != 5) | |
277 | return cmd_usage(cmdtp); | |
278 | ||
279 | /* | |
280 | * memaddr is the address where to store things in memory | |
281 | */ | |
282 | memaddr = (u_char *)simple_strtoul(argv[1], NULL, 16); | |
283 | ||
284 | /* | |
285 | * I2C chip address | |
286 | */ | |
287 | chip = simple_strtoul(argv[2], NULL, 16); | |
288 | ||
289 | /* | |
290 | * I2C data address within the chip. This can be 1 or | |
291 | * 2 bytes long. Some day it might be 3 bytes long :-). | |
292 | */ | |
293 | devaddr = simple_strtoul(argv[3], NULL, 16); | |
294 | alen = get_alen(argv[3]); | |
295 | if (alen > 3) | |
296 | return cmd_usage(cmdtp); | |
297 | ||
298 | /* | |
299 | * Length is the number of objects, not number of bytes. | |
300 | */ | |
301 | length = simple_strtoul(argv[4], NULL, 16); | |
302 | ||
303 | while (length-- > 0) { | |
304 | if (i2c_write(chip, devaddr++, alen, memaddr++, 1) != 0) { | |
305 | puts("Error writing to the chip.\n"); | |
306 | return 1; | |
307 | } | |
308 | /* | |
309 | * No write delay with FRAM devices. | |
310 | */ | |
311 | #if !defined(CONFIG_SYS_I2C_FRAM) | |
312 | udelay(11000); | |
313 | #endif | |
314 | } | |
315 | return 0; | |
316 | } | |
317 | ||
06afa388 MV |
318 | /** |
319 | * do_i2c_md() - Handle the "i2c md" command-line command | |
320 | * @cmdtp: Command data struct pointer | |
321 | * @flag: Command flag | |
322 | * @argc: Command-line argument count | |
323 | * @argv: Array of command-line arguments | |
324 | * | |
325 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
326 | * on error. | |
327 | * | |
4a8cf338 FM |
328 | * Syntax: |
329 | * i2c md {i2c_chip} {addr}{.0, .1, .2} {len} | |
330 | */ | |
54841ab5 | 331 | static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
332 | { |
333 | u_char chip; | |
334 | uint addr, alen, length; | |
335 | int j, nbytes, linebytes; | |
336 | ||
337 | /* We use the last specified parameters, unless new ones are | |
338 | * entered. | |
339 | */ | |
340 | chip = i2c_dp_last_chip; | |
341 | addr = i2c_dp_last_addr; | |
342 | alen = i2c_dp_last_alen; | |
343 | length = i2c_dp_last_length; | |
344 | ||
47e26b1b | 345 | if (argc < 3) |
4c12eeb8 | 346 | return CMD_RET_USAGE; |
81a8824f WD |
347 | |
348 | if ((flag & CMD_FLAG_REPEAT) == 0) { | |
349 | /* | |
350 | * New command specified. | |
351 | */ | |
81a8824f WD |
352 | |
353 | /* | |
354 | * I2C chip address | |
355 | */ | |
356 | chip = simple_strtoul(argv[1], NULL, 16); | |
357 | ||
358 | /* | |
359 | * I2C data address within the chip. This can be 1 or | |
360 | * 2 bytes long. Some day it might be 3 bytes long :-). | |
361 | */ | |
362 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 363 | alen = get_alen(argv[2]); |
7a92e53c | 364 | if (alen > 3) |
4c12eeb8 | 365 | return CMD_RET_USAGE; |
81a8824f WD |
366 | |
367 | /* | |
368 | * If another parameter, it is the length to display. | |
369 | * Length is the number of objects, not number of bytes. | |
370 | */ | |
371 | if (argc > 3) | |
372 | length = simple_strtoul(argv[3], NULL, 16); | |
373 | } | |
374 | ||
375 | /* | |
376 | * Print the lines. | |
377 | * | |
378 | * We buffer all read data, so we can make sure data is read only | |
379 | * once. | |
380 | */ | |
381 | nbytes = length; | |
382 | do { | |
383 | unsigned char linebuf[DISP_LINE_LEN]; | |
384 | unsigned char *cp; | |
385 | ||
386 | linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes; | |
387 | ||
e857a5bd | 388 | if (i2c_read(chip, addr, alen, linebuf, linebytes) != 0) |
4b9206ed | 389 | puts ("Error reading the chip.\n"); |
e857a5bd | 390 | else { |
81a8824f WD |
391 | printf("%04x:", addr); |
392 | cp = linebuf; | |
393 | for (j=0; j<linebytes; j++) { | |
394 | printf(" %02x", *cp++); | |
395 | addr++; | |
396 | } | |
4b9206ed | 397 | puts (" "); |
81a8824f WD |
398 | cp = linebuf; |
399 | for (j=0; j<linebytes; j++) { | |
400 | if ((*cp < 0x20) || (*cp > 0x7e)) | |
4b9206ed | 401 | puts ("."); |
81a8824f WD |
402 | else |
403 | printf("%c", *cp); | |
404 | cp++; | |
405 | } | |
4b9206ed | 406 | putc ('\n'); |
81a8824f WD |
407 | } |
408 | nbytes -= linebytes; | |
409 | } while (nbytes > 0); | |
410 | ||
411 | i2c_dp_last_chip = chip; | |
412 | i2c_dp_last_addr = addr; | |
413 | i2c_dp_last_alen = alen; | |
414 | i2c_dp_last_length = length; | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
06afa388 MV |
419 | /** |
420 | * do_i2c_mw() - Handle the "i2c mw" command-line command | |
421 | * @cmdtp: Command data struct pointer | |
422 | * @flag: Command flag | |
423 | * @argc: Command-line argument count | |
424 | * @argv: Array of command-line arguments | |
425 | * | |
426 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
427 | * on error. | |
81a8824f WD |
428 | * |
429 | * Syntax: | |
0f89c54b | 430 | * i2c mw {i2c_chip} {addr}{.0, .1, .2} {data} [{count}] |
81a8824f | 431 | */ |
54841ab5 | 432 | static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
433 | { |
434 | uchar chip; | |
435 | ulong addr; | |
436 | uint alen; | |
437 | uchar byte; | |
438 | int count; | |
81a8824f | 439 | |
47e26b1b | 440 | if ((argc < 4) || (argc > 5)) |
4c12eeb8 | 441 | return CMD_RET_USAGE; |
81a8824f WD |
442 | |
443 | /* | |
53677ef1 WD |
444 | * Chip is always specified. |
445 | */ | |
81a8824f WD |
446 | chip = simple_strtoul(argv[1], NULL, 16); |
447 | ||
448 | /* | |
449 | * Address is always specified. | |
450 | */ | |
451 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 452 | alen = get_alen(argv[2]); |
7a92e53c | 453 | if (alen > 3) |
4c12eeb8 | 454 | return CMD_RET_USAGE; |
81a8824f WD |
455 | |
456 | /* | |
457 | * Value to write is always specified. | |
458 | */ | |
459 | byte = simple_strtoul(argv[3], NULL, 16); | |
460 | ||
461 | /* | |
462 | * Optional count | |
463 | */ | |
e857a5bd | 464 | if (argc == 5) |
81a8824f | 465 | count = simple_strtoul(argv[4], NULL, 16); |
e857a5bd | 466 | else |
81a8824f | 467 | count = 1; |
81a8824f WD |
468 | |
469 | while (count-- > 0) { | |
e857a5bd | 470 | if (i2c_write(chip, addr++, alen, &byte, 1) != 0) |
4b9206ed | 471 | puts ("Error writing the chip.\n"); |
81a8824f WD |
472 | /* |
473 | * Wait for the write to complete. The write can take | |
474 | * up to 10mSec (we allow a little more time). | |
81a8824f | 475 | */ |
d4f5c728 | 476 | /* |
477 | * No write delay with FRAM devices. | |
478 | */ | |
6d0f6bcf | 479 | #if !defined(CONFIG_SYS_I2C_FRAM) |
81a8824f | 480 | udelay(11000); |
d4f5c728 | 481 | #endif |
81a8824f WD |
482 | } |
483 | ||
06afa388 | 484 | return 0; |
81a8824f WD |
485 | } |
486 | ||
06afa388 MV |
487 | /** |
488 | * do_i2c_crc() - Handle the "i2c crc32" command-line command | |
489 | * @cmdtp: Command data struct pointer | |
490 | * @flag: Command flag | |
491 | * @argc: Command-line argument count | |
492 | * @argv: Array of command-line arguments | |
493 | * | |
494 | * Calculate a CRC on memory | |
495 | * | |
496 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
497 | * on error. | |
81a8824f WD |
498 | * |
499 | * Syntax: | |
0f89c54b | 500 | * i2c crc32 {i2c_chip} {addr}{.0, .1, .2} {count} |
81a8824f | 501 | */ |
54841ab5 | 502 | static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
503 | { |
504 | uchar chip; | |
505 | ulong addr; | |
506 | uint alen; | |
507 | int count; | |
508 | uchar byte; | |
509 | ulong crc; | |
510 | ulong err; | |
81a8824f | 511 | |
47e26b1b | 512 | if (argc < 4) |
4c12eeb8 | 513 | return CMD_RET_USAGE; |
81a8824f WD |
514 | |
515 | /* | |
53677ef1 WD |
516 | * Chip is always specified. |
517 | */ | |
81a8824f WD |
518 | chip = simple_strtoul(argv[1], NULL, 16); |
519 | ||
520 | /* | |
521 | * Address is always specified. | |
522 | */ | |
523 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 524 | alen = get_alen(argv[2]); |
7a92e53c | 525 | if (alen > 3) |
4c12eeb8 | 526 | return CMD_RET_USAGE; |
81a8824f WD |
527 | |
528 | /* | |
529 | * Count is always specified | |
530 | */ | |
531 | count = simple_strtoul(argv[3], NULL, 16); | |
532 | ||
533 | printf ("CRC32 for %08lx ... %08lx ==> ", addr, addr + count - 1); | |
534 | /* | |
535 | * CRC a byte at a time. This is going to be slooow, but hey, the | |
536 | * memories are small and slow too so hopefully nobody notices. | |
537 | */ | |
538 | crc = 0; | |
539 | err = 0; | |
e857a5bd TT |
540 | while (count-- > 0) { |
541 | if (i2c_read(chip, addr, alen, &byte, 1) != 0) | |
81a8824f | 542 | err++; |
81a8824f WD |
543 | crc = crc32 (crc, &byte, 1); |
544 | addr++; | |
545 | } | |
e857a5bd | 546 | if (err > 0) |
4b9206ed | 547 | puts ("Error reading the chip,\n"); |
e857a5bd | 548 | else |
81a8824f | 549 | printf ("%08lx\n", crc); |
81a8824f WD |
550 | |
551 | return 0; | |
552 | } | |
553 | ||
06afa388 MV |
554 | /** |
555 | * mod_i2c_mem() - Handle the "i2c mm" and "i2c nm" command-line command | |
556 | * @cmdtp: Command data struct pointer | |
557 | * @flag: Command flag | |
558 | * @argc: Command-line argument count | |
559 | * @argv: Array of command-line arguments | |
560 | * | |
561 | * Modify memory. | |
562 | * | |
563 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
564 | * on error. | |
81a8824f WD |
565 | * |
566 | * Syntax: | |
0f89c54b PT |
567 | * i2c mm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2} |
568 | * i2c nm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2} | |
81a8824f | 569 | */ |
81a8824f | 570 | static int |
54841ab5 | 571 | mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[]) |
81a8824f WD |
572 | { |
573 | uchar chip; | |
574 | ulong addr; | |
575 | uint alen; | |
576 | ulong data; | |
577 | int size = 1; | |
578 | int nbytes; | |
81a8824f | 579 | |
47e26b1b | 580 | if (argc != 3) |
4c12eeb8 | 581 | return CMD_RET_USAGE; |
81a8824f WD |
582 | |
583 | #ifdef CONFIG_BOOT_RETRY_TIME | |
584 | reset_cmd_timeout(); /* got a good command to get here */ | |
585 | #endif | |
586 | /* | |
587 | * We use the last specified parameters, unless new ones are | |
588 | * entered. | |
589 | */ | |
590 | chip = i2c_mm_last_chip; | |
591 | addr = i2c_mm_last_addr; | |
592 | alen = i2c_mm_last_alen; | |
593 | ||
594 | if ((flag & CMD_FLAG_REPEAT) == 0) { | |
595 | /* | |
596 | * New command specified. Check for a size specification. | |
597 | * Defaults to byte if no or incorrect specification. | |
598 | */ | |
599 | size = cmd_get_data_size(argv[0], 1); | |
600 | ||
601 | /* | |
53677ef1 WD |
602 | * Chip is always specified. |
603 | */ | |
81a8824f WD |
604 | chip = simple_strtoul(argv[1], NULL, 16); |
605 | ||
606 | /* | |
607 | * Address is always specified. | |
608 | */ | |
609 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 610 | alen = get_alen(argv[2]); |
7a92e53c | 611 | if (alen > 3) |
4c12eeb8 | 612 | return CMD_RET_USAGE; |
81a8824f WD |
613 | } |
614 | ||
615 | /* | |
616 | * Print the address, followed by value. Then accept input for | |
617 | * the next value. A non-converted value exits. | |
618 | */ | |
619 | do { | |
620 | printf("%08lx:", addr); | |
e857a5bd | 621 | if (i2c_read(chip, addr, alen, (uchar *)&data, size) != 0) |
4b9206ed | 622 | puts ("\nError reading the chip,\n"); |
e857a5bd | 623 | else { |
81a8824f | 624 | data = cpu_to_be32(data); |
e857a5bd | 625 | if (size == 1) |
81a8824f | 626 | printf(" %02lx", (data >> 24) & 0x000000FF); |
e857a5bd | 627 | else if (size == 2) |
81a8824f | 628 | printf(" %04lx", (data >> 16) & 0x0000FFFF); |
e857a5bd | 629 | else |
81a8824f | 630 | printf(" %08lx", data); |
81a8824f WD |
631 | } |
632 | ||
633 | nbytes = readline (" ? "); | |
634 | if (nbytes == 0) { | |
635 | /* | |
636 | * <CR> pressed as only input, don't modify current | |
637 | * location and move to next. | |
638 | */ | |
639 | if (incrflag) | |
640 | addr += size; | |
641 | nbytes = size; | |
642 | #ifdef CONFIG_BOOT_RETRY_TIME | |
643 | reset_cmd_timeout(); /* good enough to not time out */ | |
644 | #endif | |
645 | } | |
646 | #ifdef CONFIG_BOOT_RETRY_TIME | |
e857a5bd | 647 | else if (nbytes == -2) |
81a8824f | 648 | break; /* timed out, exit the command */ |
81a8824f WD |
649 | #endif |
650 | else { | |
651 | char *endp; | |
652 | ||
653 | data = simple_strtoul(console_buffer, &endp, 16); | |
e857a5bd | 654 | if (size == 1) |
81a8824f | 655 | data = data << 24; |
e857a5bd | 656 | else if (size == 2) |
81a8824f | 657 | data = data << 16; |
81a8824f WD |
658 | data = be32_to_cpu(data); |
659 | nbytes = endp - console_buffer; | |
660 | if (nbytes) { | |
661 | #ifdef CONFIG_BOOT_RETRY_TIME | |
662 | /* | |
663 | * good enough to not time out | |
664 | */ | |
665 | reset_cmd_timeout(); | |
666 | #endif | |
e857a5bd | 667 | if (i2c_write(chip, addr, alen, (uchar *)&data, size) != 0) |
4b9206ed | 668 | puts ("Error writing the chip.\n"); |
6d0f6bcf JCPV |
669 | #ifdef CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS |
670 | udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000); | |
2535d602 | 671 | #endif |
81a8824f WD |
672 | if (incrflag) |
673 | addr += size; | |
674 | } | |
675 | } | |
676 | } while (nbytes); | |
677 | ||
0800707b PT |
678 | i2c_mm_last_chip = chip; |
679 | i2c_mm_last_addr = addr; | |
680 | i2c_mm_last_alen = alen; | |
81a8824f WD |
681 | |
682 | return 0; | |
683 | } | |
684 | ||
06afa388 MV |
685 | /** |
686 | * do_i2c_probe() - Handle the "i2c probe" command-line command | |
687 | * @cmdtp: Command data struct pointer | |
688 | * @flag: Command flag | |
689 | * @argc: Command-line argument count | |
690 | * @argv: Array of command-line arguments | |
691 | * | |
692 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
693 | * on error. | |
694 | * | |
81a8824f | 695 | * Syntax: |
54b99e51 EN |
696 | * i2c probe {addr} |
697 | * | |
698 | * Returns zero (success) if one or more I2C devices was found | |
81a8824f | 699 | */ |
54841ab5 | 700 | static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
701 | { |
702 | int j; | |
54b99e51 EN |
703 | int addr = -1; |
704 | int found = 0; | |
6d0f6bcf | 705 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
81a8824f | 706 | int k, skip; |
3f4978c7 | 707 | unsigned int bus = GET_BUS_NUM; |
bb99ad6d | 708 | #endif /* NOPROBES */ |
81a8824f | 709 | |
54b99e51 EN |
710 | if (argc == 2) |
711 | addr = simple_strtol(argv[1], 0, 16); | |
712 | ||
4b9206ed | 713 | puts ("Valid chip addresses:"); |
e857a5bd | 714 | for (j = 0; j < 128; j++) { |
54b99e51 EN |
715 | if ((0 <= addr) && (j != addr)) |
716 | continue; | |
717 | ||
6d0f6bcf | 718 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
81a8824f | 719 | skip = 0; |
e857a5bd TT |
720 | for (k=0; k < NUM_ELEMENTS_NOPROBE; k++) { |
721 | if (COMPARE_BUS(bus, k) && COMPARE_ADDR(j, k)) { | |
81a8824f WD |
722 | skip = 1; |
723 | break; | |
724 | } | |
725 | } | |
726 | if (skip) | |
727 | continue; | |
728 | #endif | |
54b99e51 | 729 | if (i2c_probe(j) == 0) { |
81a8824f | 730 | printf(" %02X", j); |
54b99e51 EN |
731 | found++; |
732 | } | |
81a8824f | 733 | } |
4b9206ed | 734 | putc ('\n'); |
81a8824f | 735 | |
6d0f6bcf | 736 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
81a8824f | 737 | puts ("Excluded chip addresses:"); |
e857a5bd TT |
738 | for (k=0; k < NUM_ELEMENTS_NOPROBE; k++) { |
739 | if (COMPARE_BUS(bus,k)) | |
bb99ad6d BW |
740 | printf(" %02X", NO_PROBE_ADDR(k)); |
741 | } | |
4b9206ed | 742 | putc ('\n'); |
81a8824f WD |
743 | #endif |
744 | ||
54b99e51 | 745 | return (0 == found); |
81a8824f WD |
746 | } |
747 | ||
06afa388 MV |
748 | /** |
749 | * do_i2c_loop() - Handle the "i2c loop" command-line command | |
750 | * @cmdtp: Command data struct pointer | |
751 | * @flag: Command flag | |
752 | * @argc: Command-line argument count | |
753 | * @argv: Array of command-line arguments | |
754 | * | |
755 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
756 | * on error. | |
757 | * | |
81a8824f | 758 | * Syntax: |
0f89c54b | 759 | * i2c loop {i2c_chip} {addr}{.0, .1, .2} [{length}] [{delay}] |
81a8824f WD |
760 | * {length} - Number of bytes to read |
761 | * {delay} - A DECIMAL number and defaults to 1000 uSec | |
762 | */ | |
54841ab5 | 763 | static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
764 | { |
765 | u_char chip; | |
766 | ulong alen; | |
767 | uint addr; | |
768 | uint length; | |
769 | u_char bytes[16]; | |
770 | int delay; | |
81a8824f | 771 | |
47e26b1b | 772 | if (argc < 3) |
4c12eeb8 | 773 | return CMD_RET_USAGE; |
81a8824f WD |
774 | |
775 | /* | |
776 | * Chip is always specified. | |
777 | */ | |
778 | chip = simple_strtoul(argv[1], NULL, 16); | |
779 | ||
780 | /* | |
781 | * Address is always specified. | |
782 | */ | |
783 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 784 | alen = get_alen(argv[2]); |
7a92e53c | 785 | if (alen > 3) |
4c12eeb8 | 786 | return CMD_RET_USAGE; |
81a8824f WD |
787 | |
788 | /* | |
789 | * Length is the number of objects, not number of bytes. | |
790 | */ | |
791 | length = 1; | |
792 | length = simple_strtoul(argv[3], NULL, 16); | |
e857a5bd | 793 | if (length > sizeof(bytes)) |
81a8824f | 794 | length = sizeof(bytes); |
81a8824f WD |
795 | |
796 | /* | |
797 | * The delay time (uSec) is optional. | |
798 | */ | |
799 | delay = 1000; | |
e857a5bd | 800 | if (argc > 3) |
81a8824f | 801 | delay = simple_strtoul(argv[4], NULL, 10); |
81a8824f WD |
802 | /* |
803 | * Run the loop... | |
804 | */ | |
e857a5bd TT |
805 | while (1) { |
806 | if (i2c_read(chip, addr, alen, bytes, length) != 0) | |
4b9206ed | 807 | puts ("Error reading the chip.\n"); |
81a8824f WD |
808 | udelay(delay); |
809 | } | |
810 | ||
811 | /* NOTREACHED */ | |
812 | return 0; | |
813 | } | |
814 | ||
81a8824f WD |
815 | /* |
816 | * The SDRAM command is separately configured because many | |
817 | * (most?) embedded boards don't use SDRAM DIMMs. | |
06afa388 MV |
818 | * |
819 | * FIXME: Document and probably move elsewhere! | |
81a8824f | 820 | */ |
c76fe474 | 821 | #if defined(CONFIG_CMD_SDRAM) |
632de067 LJ |
822 | static void print_ddr2_tcyc (u_char const b) |
823 | { | |
824 | printf ("%d.", (b >> 4) & 0x0F); | |
825 | switch (b & 0x0F) { | |
826 | case 0x0: | |
827 | case 0x1: | |
828 | case 0x2: | |
829 | case 0x3: | |
830 | case 0x4: | |
831 | case 0x5: | |
832 | case 0x6: | |
833 | case 0x7: | |
834 | case 0x8: | |
835 | case 0x9: | |
836 | printf ("%d ns\n", b & 0x0F); | |
837 | break; | |
838 | case 0xA: | |
839 | puts ("25 ns\n"); | |
840 | break; | |
841 | case 0xB: | |
842 | puts ("33 ns\n"); | |
843 | break; | |
844 | case 0xC: | |
845 | puts ("66 ns\n"); | |
846 | break; | |
847 | case 0xD: | |
848 | puts ("75 ns\n"); | |
849 | break; | |
850 | default: | |
851 | puts ("?? ns\n"); | |
852 | break; | |
853 | } | |
854 | } | |
855 | ||
856 | static void decode_bits (u_char const b, char const *str[], int const do_once) | |
857 | { | |
858 | u_char mask; | |
859 | ||
860 | for (mask = 0x80; mask != 0x00; mask >>= 1, ++str) { | |
861 | if (b & mask) { | |
862 | puts (*str); | |
863 | if (do_once) | |
864 | return; | |
865 | } | |
866 | } | |
867 | } | |
81a8824f WD |
868 | |
869 | /* | |
870 | * Syntax: | |
0f89c54b | 871 | * i2c sdram {i2c_chip} |
81a8824f | 872 | */ |
54841ab5 | 873 | static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
81a8824f | 874 | { |
632de067 LJ |
875 | enum { unknown, EDO, SDRAM, DDR2 } type; |
876 | ||
81a8824f WD |
877 | u_char chip; |
878 | u_char data[128]; | |
879 | u_char cksum; | |
880 | int j; | |
881 | ||
632de067 LJ |
882 | static const char *decode_CAS_DDR2[] = { |
883 | " TBD", " 6", " 5", " 4", " 3", " 2", " TBD", " TBD" | |
884 | }; | |
885 | ||
886 | static const char *decode_CAS_default[] = { | |
887 | " TBD", " 7", " 6", " 5", " 4", " 3", " 2", " 1" | |
888 | }; | |
889 | ||
890 | static const char *decode_CS_WE_default[] = { | |
891 | " TBD", " 6", " 5", " 4", " 3", " 2", " 1", " 0" | |
892 | }; | |
893 | ||
894 | static const char *decode_byte21_default[] = { | |
895 | " TBD (bit 7)\n", | |
896 | " Redundant row address\n", | |
897 | " Differential clock input\n", | |
898 | " Registerd DQMB inputs\n", | |
899 | " Buffered DQMB inputs\n", | |
900 | " On-card PLL\n", | |
901 | " Registered address/control lines\n", | |
902 | " Buffered address/control lines\n" | |
903 | }; | |
904 | ||
905 | static const char *decode_byte22_DDR2[] = { | |
906 | " TBD (bit 7)\n", | |
907 | " TBD (bit 6)\n", | |
908 | " TBD (bit 5)\n", | |
909 | " TBD (bit 4)\n", | |
910 | " TBD (bit 3)\n", | |
911 | " Supports partial array self refresh\n", | |
912 | " Supports 50 ohm ODT\n", | |
913 | " Supports weak driver\n" | |
914 | }; | |
915 | ||
916 | static const char *decode_row_density_DDR2[] = { | |
917 | "512 MiB", "256 MiB", "128 MiB", "16 GiB", | |
918 | "8 GiB", "4 GiB", "2 GiB", "1 GiB" | |
919 | }; | |
920 | ||
921 | static const char *decode_row_density_default[] = { | |
922 | "512 MiB", "256 MiB", "128 MiB", "64 MiB", | |
923 | "32 MiB", "16 MiB", "8 MiB", "4 MiB" | |
924 | }; | |
925 | ||
47e26b1b | 926 | if (argc < 2) |
4c12eeb8 | 927 | return CMD_RET_USAGE; |
47e26b1b | 928 | |
81a8824f WD |
929 | /* |
930 | * Chip is always specified. | |
632de067 LJ |
931 | */ |
932 | chip = simple_strtoul (argv[1], NULL, 16); | |
81a8824f | 933 | |
632de067 | 934 | if (i2c_read (chip, 0, 1, data, sizeof (data)) != 0) { |
4b9206ed | 935 | puts ("No SDRAM Serial Presence Detect found.\n"); |
81a8824f WD |
936 | return 1; |
937 | } | |
938 | ||
939 | cksum = 0; | |
940 | for (j = 0; j < 63; j++) { | |
941 | cksum += data[j]; | |
942 | } | |
e857a5bd | 943 | if (cksum != data[63]) { |
81a8824f | 944 | printf ("WARNING: Configuration data checksum failure:\n" |
632de067 | 945 | " is 0x%02x, calculated 0x%02x\n", data[63], cksum); |
81a8824f | 946 | } |
632de067 | 947 | printf ("SPD data revision %d.%d\n", |
81a8824f | 948 | (data[62] >> 4) & 0x0F, data[62] & 0x0F); |
632de067 LJ |
949 | printf ("Bytes used 0x%02X\n", data[0]); |
950 | printf ("Serial memory size 0x%02X\n", 1 << data[1]); | |
951 | ||
4b9206ed | 952 | puts ("Memory type "); |
632de067 | 953 | switch (data[2]) { |
0df6b844 LJ |
954 | case 2: |
955 | type = EDO; | |
956 | puts ("EDO\n"); | |
957 | break; | |
958 | case 4: | |
959 | type = SDRAM; | |
960 | puts ("SDRAM\n"); | |
961 | break; | |
962 | case 8: | |
963 | type = DDR2; | |
964 | puts ("DDR2\n"); | |
965 | break; | |
966 | default: | |
967 | type = unknown; | |
968 | puts ("unknown\n"); | |
969 | break; | |
81a8824f | 970 | } |
632de067 | 971 | |
4b9206ed | 972 | puts ("Row address bits "); |
e857a5bd | 973 | if ((data[3] & 0x00F0) == 0) |
632de067 | 974 | printf ("%d\n", data[3] & 0x0F); |
e857a5bd | 975 | else |
632de067 LJ |
976 | printf ("%d/%d\n", data[3] & 0x0F, (data[3] >> 4) & 0x0F); |
977 | ||
4b9206ed | 978 | puts ("Column address bits "); |
e857a5bd | 979 | if ((data[4] & 0x00F0) == 0) |
632de067 | 980 | printf ("%d\n", data[4] & 0x0F); |
e857a5bd | 981 | else |
632de067 | 982 | printf ("%d/%d\n", data[4] & 0x0F, (data[4] >> 4) & 0x0F); |
0df6b844 LJ |
983 | |
984 | switch (type) { | |
985 | case DDR2: | |
632de067 LJ |
986 | printf ("Number of ranks %d\n", |
987 | (data[5] & 0x07) + 1); | |
0df6b844 LJ |
988 | break; |
989 | default: | |
632de067 | 990 | printf ("Module rows %d\n", data[5]); |
0df6b844 LJ |
991 | break; |
992 | } | |
993 | ||
994 | switch (type) { | |
995 | case DDR2: | |
632de067 | 996 | printf ("Module data width %d bits\n", data[6]); |
0df6b844 LJ |
997 | break; |
998 | default: | |
632de067 LJ |
999 | printf ("Module data width %d bits\n", |
1000 | (data[7] << 8) | data[6]); | |
0df6b844 LJ |
1001 | break; |
1002 | } | |
1003 | ||
4b9206ed | 1004 | puts ("Interface signal levels "); |
81a8824f | 1005 | switch(data[8]) { |
0df6b844 | 1006 | case 0: puts ("TTL 5.0 V\n"); break; |
4b9206ed | 1007 | case 1: puts ("LVTTL\n"); break; |
0df6b844 LJ |
1008 | case 2: puts ("HSTL 1.5 V\n"); break; |
1009 | case 3: puts ("SSTL 3.3 V\n"); break; | |
1010 | case 4: puts ("SSTL 2.5 V\n"); break; | |
1011 | case 5: puts ("SSTL 1.8 V\n"); break; | |
4b9206ed | 1012 | default: puts ("unknown\n"); break; |
81a8824f | 1013 | } |
0df6b844 LJ |
1014 | |
1015 | switch (type) { | |
1016 | case DDR2: | |
632de067 LJ |
1017 | printf ("SDRAM cycle time "); |
1018 | print_ddr2_tcyc (data[9]); | |
0df6b844 LJ |
1019 | break; |
1020 | default: | |
632de067 LJ |
1021 | printf ("SDRAM cycle time %d.%d ns\n", |
1022 | (data[9] >> 4) & 0x0F, data[9] & 0x0F); | |
0df6b844 LJ |
1023 | break; |
1024 | } | |
1025 | ||
1026 | switch (type) { | |
1027 | case DDR2: | |
632de067 LJ |
1028 | printf ("SDRAM access time 0.%d%d ns\n", |
1029 | (data[10] >> 4) & 0x0F, data[10] & 0x0F); | |
0df6b844 LJ |
1030 | break; |
1031 | default: | |
632de067 LJ |
1032 | printf ("SDRAM access time %d.%d ns\n", |
1033 | (data[10] >> 4) & 0x0F, data[10] & 0x0F); | |
0df6b844 LJ |
1034 | break; |
1035 | } | |
1036 | ||
4b9206ed | 1037 | puts ("EDC configuration "); |
632de067 | 1038 | switch (data[11]) { |
4b9206ed WD |
1039 | case 0: puts ("None\n"); break; |
1040 | case 1: puts ("Parity\n"); break; | |
1041 | case 2: puts ("ECC\n"); break; | |
1042 | default: puts ("unknown\n"); break; | |
81a8824f | 1043 | } |
632de067 | 1044 | |
e857a5bd | 1045 | if ((data[12] & 0x80) == 0) |
4b9206ed | 1046 | puts ("No self refresh, rate "); |
e857a5bd | 1047 | else |
4b9206ed | 1048 | puts ("Self refresh, rate "); |
632de067 | 1049 | |
81a8824f | 1050 | switch(data[12] & 0x7F) { |
632de067 LJ |
1051 | case 0: puts ("15.625 us\n"); break; |
1052 | case 1: puts ("3.9 us\n"); break; | |
1053 | case 2: puts ("7.8 us\n"); break; | |
1054 | case 3: puts ("31.3 us\n"); break; | |
1055 | case 4: puts ("62.5 us\n"); break; | |
1056 | case 5: puts ("125 us\n"); break; | |
4b9206ed | 1057 | default: puts ("unknown\n"); break; |
81a8824f | 1058 | } |
0df6b844 LJ |
1059 | |
1060 | switch (type) { | |
1061 | case DDR2: | |
632de067 | 1062 | printf ("SDRAM width (primary) %d\n", data[13]); |
0df6b844 LJ |
1063 | break; |
1064 | default: | |
632de067 | 1065 | printf ("SDRAM width (primary) %d\n", data[13] & 0x7F); |
0df6b844 | 1066 | if ((data[13] & 0x80) != 0) { |
632de067 LJ |
1067 | printf (" (second bank) %d\n", |
1068 | 2 * (data[13] & 0x7F)); | |
0df6b844 LJ |
1069 | } |
1070 | break; | |
1071 | } | |
1072 | ||
1073 | switch (type) { | |
1074 | case DDR2: | |
1075 | if (data[14] != 0) | |
632de067 | 1076 | printf ("EDC width %d\n", data[14]); |
0df6b844 LJ |
1077 | break; |
1078 | default: | |
1079 | if (data[14] != 0) { | |
632de067 LJ |
1080 | printf ("EDC width %d\n", |
1081 | data[14] & 0x7F); | |
0df6b844 LJ |
1082 | |
1083 | if ((data[14] & 0x80) != 0) { | |
632de067 LJ |
1084 | printf (" (second bank) %d\n", |
1085 | 2 * (data[14] & 0x7F)); | |
0df6b844 LJ |
1086 | } |
1087 | } | |
1088 | break; | |
81a8824f | 1089 | } |
0df6b844 | 1090 | |
632de067 LJ |
1091 | if (DDR2 != type) { |
1092 | printf ("Min clock delay, back-to-back random column addresses " | |
1093 | "%d\n", data[15]); | |
0df6b844 LJ |
1094 | } |
1095 | ||
4b9206ed WD |
1096 | puts ("Burst length(s) "); |
1097 | if (data[16] & 0x80) puts (" Page"); | |
1098 | if (data[16] & 0x08) puts (" 8"); | |
1099 | if (data[16] & 0x04) puts (" 4"); | |
1100 | if (data[16] & 0x02) puts (" 2"); | |
1101 | if (data[16] & 0x01) puts (" 1"); | |
1102 | putc ('\n'); | |
632de067 | 1103 | printf ("Number of banks %d\n", data[17]); |
0df6b844 LJ |
1104 | |
1105 | switch (type) { | |
1106 | case DDR2: | |
1107 | puts ("CAS latency(s) "); | |
632de067 | 1108 | decode_bits (data[18], decode_CAS_DDR2, 0); |
0df6b844 LJ |
1109 | putc ('\n'); |
1110 | break; | |
1111 | default: | |
1112 | puts ("CAS latency(s) "); | |
632de067 | 1113 | decode_bits (data[18], decode_CAS_default, 0); |
0df6b844 LJ |
1114 | putc ('\n'); |
1115 | break; | |
1116 | } | |
1117 | ||
1118 | if (DDR2 != type) { | |
1119 | puts ("CS latency(s) "); | |
632de067 | 1120 | decode_bits (data[19], decode_CS_WE_default, 0); |
0df6b844 LJ |
1121 | putc ('\n'); |
1122 | } | |
1123 | ||
1124 | if (DDR2 != type) { | |
1125 | puts ("WE latency(s) "); | |
632de067 | 1126 | decode_bits (data[20], decode_CS_WE_default, 0); |
0df6b844 LJ |
1127 | putc ('\n'); |
1128 | } | |
1129 | ||
1130 | switch (type) { | |
1131 | case DDR2: | |
1132 | puts ("Module attributes:\n"); | |
1133 | if (data[21] & 0x80) | |
1134 | puts (" TBD (bit 7)\n"); | |
1135 | if (data[21] & 0x40) | |
1136 | puts (" Analysis probe installed\n"); | |
1137 | if (data[21] & 0x20) | |
1138 | puts (" TBD (bit 5)\n"); | |
1139 | if (data[21] & 0x10) | |
1140 | puts (" FET switch external enable\n"); | |
632de067 | 1141 | printf (" %d PLLs on DIMM\n", (data[21] >> 2) & 0x03); |
0df6b844 | 1142 | if (data[20] & 0x11) { |
632de067 LJ |
1143 | printf (" %d active registers on DIMM\n", |
1144 | (data[21] & 0x03) + 1); | |
0df6b844 LJ |
1145 | } |
1146 | break; | |
1147 | default: | |
1148 | puts ("Module attributes:\n"); | |
1149 | if (!data[21]) | |
1150 | puts (" (none)\n"); | |
632de067 LJ |
1151 | else |
1152 | decode_bits (data[21], decode_byte21_default, 0); | |
0df6b844 LJ |
1153 | break; |
1154 | } | |
1155 | ||
1156 | switch (type) { | |
1157 | case DDR2: | |
632de067 | 1158 | decode_bits (data[22], decode_byte22_DDR2, 0); |
0df6b844 LJ |
1159 | break; |
1160 | default: | |
1161 | puts ("Device attributes:\n"); | |
1162 | if (data[22] & 0x80) puts (" TBD (bit 7)\n"); | |
1163 | if (data[22] & 0x40) puts (" TBD (bit 6)\n"); | |
1164 | if (data[22] & 0x20) puts (" Upper Vcc tolerance 5%\n"); | |
1165 | else puts (" Upper Vcc tolerance 10%\n"); | |
1166 | if (data[22] & 0x10) puts (" Lower Vcc tolerance 5%\n"); | |
1167 | else puts (" Lower Vcc tolerance 10%\n"); | |
1168 | if (data[22] & 0x08) puts (" Supports write1/read burst\n"); | |
1169 | if (data[22] & 0x04) puts (" Supports precharge all\n"); | |
1170 | if (data[22] & 0x02) puts (" Supports auto precharge\n"); | |
1171 | if (data[22] & 0x01) puts (" Supports early RAS# precharge\n"); | |
1172 | break; | |
1173 | } | |
1174 | ||
1175 | switch (type) { | |
1176 | case DDR2: | |
632de067 LJ |
1177 | printf ("SDRAM cycle time (2nd highest CAS latency) "); |
1178 | print_ddr2_tcyc (data[23]); | |
0df6b844 LJ |
1179 | break; |
1180 | default: | |
632de067 LJ |
1181 | printf ("SDRAM cycle time (2nd highest CAS latency) %d." |
1182 | "%d ns\n", (data[23] >> 4) & 0x0F, data[23] & 0x0F); | |
0df6b844 LJ |
1183 | break; |
1184 | } | |
1185 | ||
1186 | switch (type) { | |
1187 | case DDR2: | |
632de067 LJ |
1188 | printf ("SDRAM access from clock (2nd highest CAS latency) 0." |
1189 | "%d%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F); | |
0df6b844 LJ |
1190 | break; |
1191 | default: | |
632de067 LJ |
1192 | printf ("SDRAM access from clock (2nd highest CAS latency) %d." |
1193 | "%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F); | |
0df6b844 LJ |
1194 | break; |
1195 | } | |
1196 | ||
1197 | switch (type) { | |
1198 | case DDR2: | |
632de067 LJ |
1199 | printf ("SDRAM cycle time (3rd highest CAS latency) "); |
1200 | print_ddr2_tcyc (data[25]); | |
0df6b844 LJ |
1201 | break; |
1202 | default: | |
632de067 LJ |
1203 | printf ("SDRAM cycle time (3rd highest CAS latency) %d." |
1204 | "%d ns\n", (data[25] >> 4) & 0x0F, data[25] & 0x0F); | |
0df6b844 LJ |
1205 | break; |
1206 | } | |
1207 | ||
1208 | switch (type) { | |
1209 | case DDR2: | |
632de067 LJ |
1210 | printf ("SDRAM access from clock (3rd highest CAS latency) 0." |
1211 | "%d%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F); | |
0df6b844 LJ |
1212 | break; |
1213 | default: | |
632de067 LJ |
1214 | printf ("SDRAM access from clock (3rd highest CAS latency) %d." |
1215 | "%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F); | |
0df6b844 LJ |
1216 | break; |
1217 | } | |
1218 | ||
1219 | switch (type) { | |
1220 | case DDR2: | |
632de067 LJ |
1221 | printf ("Minimum row precharge %d.%02d ns\n", |
1222 | (data[27] >> 2) & 0x3F, 25 * (data[27] & 0x03)); | |
0df6b844 LJ |
1223 | break; |
1224 | default: | |
632de067 | 1225 | printf ("Minimum row precharge %d ns\n", data[27]); |
0df6b844 LJ |
1226 | break; |
1227 | } | |
1228 | ||
1229 | switch (type) { | |
1230 | case DDR2: | |
632de067 LJ |
1231 | printf ("Row active to row active min %d.%02d ns\n", |
1232 | (data[28] >> 2) & 0x3F, 25 * (data[28] & 0x03)); | |
0df6b844 LJ |
1233 | break; |
1234 | default: | |
632de067 | 1235 | printf ("Row active to row active min %d ns\n", data[28]); |
0df6b844 LJ |
1236 | break; |
1237 | } | |
1238 | ||
1239 | switch (type) { | |
1240 | case DDR2: | |
632de067 LJ |
1241 | printf ("RAS to CAS delay min %d.%02d ns\n", |
1242 | (data[29] >> 2) & 0x3F, 25 * (data[29] & 0x03)); | |
0df6b844 LJ |
1243 | break; |
1244 | default: | |
632de067 | 1245 | printf ("RAS to CAS delay min %d ns\n", data[29]); |
0df6b844 LJ |
1246 | break; |
1247 | } | |
1248 | ||
632de067 | 1249 | printf ("Minimum RAS pulse width %d ns\n", data[30]); |
0df6b844 LJ |
1250 | |
1251 | switch (type) { | |
1252 | case DDR2: | |
632de067 LJ |
1253 | puts ("Density of each row "); |
1254 | decode_bits (data[31], decode_row_density_DDR2, 1); | |
1255 | putc ('\n'); | |
0df6b844 LJ |
1256 | break; |
1257 | default: | |
632de067 LJ |
1258 | puts ("Density of each row "); |
1259 | decode_bits (data[31], decode_row_density_default, 1); | |
1260 | putc ('\n'); | |
0df6b844 LJ |
1261 | break; |
1262 | } | |
1263 | ||
1264 | switch (type) { | |
1265 | case DDR2: | |
632de067 | 1266 | puts ("Command and Address setup "); |
0df6b844 | 1267 | if (data[32] >= 0xA0) { |
632de067 LJ |
1268 | printf ("1.%d%d ns\n", |
1269 | ((data[32] >> 4) & 0x0F) - 10, data[32] & 0x0F); | |
0df6b844 | 1270 | } else { |
632de067 LJ |
1271 | printf ("0.%d%d ns\n", |
1272 | ((data[32] >> 4) & 0x0F), data[32] & 0x0F); | |
0df6b844 LJ |
1273 | } |
1274 | break; | |
1275 | default: | |
632de067 LJ |
1276 | printf ("Command and Address setup %c%d.%d ns\n", |
1277 | (data[32] & 0x80) ? '-' : '+', | |
1278 | (data[32] >> 4) & 0x07, data[32] & 0x0F); | |
0df6b844 LJ |
1279 | break; |
1280 | } | |
1281 | ||
1282 | switch (type) { | |
1283 | case DDR2: | |
632de067 | 1284 | puts ("Command and Address hold "); |
0df6b844 | 1285 | if (data[33] >= 0xA0) { |
632de067 LJ |
1286 | printf ("1.%d%d ns\n", |
1287 | ((data[33] >> 4) & 0x0F) - 10, data[33] & 0x0F); | |
0df6b844 | 1288 | } else { |
632de067 LJ |
1289 | printf ("0.%d%d ns\n", |
1290 | ((data[33] >> 4) & 0x0F), data[33] & 0x0F); | |
0df6b844 LJ |
1291 | } |
1292 | break; | |
1293 | default: | |
632de067 LJ |
1294 | printf ("Command and Address hold %c%d.%d ns\n", |
1295 | (data[33] & 0x80) ? '-' : '+', | |
1296 | (data[33] >> 4) & 0x07, data[33] & 0x0F); | |
0df6b844 LJ |
1297 | break; |
1298 | } | |
1299 | ||
1300 | switch (type) { | |
1301 | case DDR2: | |
632de067 LJ |
1302 | printf ("Data signal input setup 0.%d%d ns\n", |
1303 | (data[34] >> 4) & 0x0F, data[34] & 0x0F); | |
0df6b844 LJ |
1304 | break; |
1305 | default: | |
632de067 LJ |
1306 | printf ("Data signal input setup %c%d.%d ns\n", |
1307 | (data[34] & 0x80) ? '-' : '+', | |
1308 | (data[34] >> 4) & 0x07, data[34] & 0x0F); | |
0df6b844 LJ |
1309 | break; |
1310 | } | |
1311 | ||
1312 | switch (type) { | |
1313 | case DDR2: | |
632de067 LJ |
1314 | printf ("Data signal input hold 0.%d%d ns\n", |
1315 | (data[35] >> 4) & 0x0F, data[35] & 0x0F); | |
0df6b844 LJ |
1316 | break; |
1317 | default: | |
632de067 LJ |
1318 | printf ("Data signal input hold %c%d.%d ns\n", |
1319 | (data[35] & 0x80) ? '-' : '+', | |
1320 | (data[35] >> 4) & 0x07, data[35] & 0x0F); | |
0df6b844 LJ |
1321 | break; |
1322 | } | |
1323 | ||
4b9206ed | 1324 | puts ("Manufacturer's JEDEC ID "); |
e857a5bd | 1325 | for (j = 64; j <= 71; j++) |
632de067 | 1326 | printf ("%02X ", data[j]); |
4b9206ed | 1327 | putc ('\n'); |
632de067 | 1328 | printf ("Manufacturing Location %02X\n", data[72]); |
4b9206ed | 1329 | puts ("Manufacturer's Part Number "); |
e857a5bd | 1330 | for (j = 73; j <= 90; j++) |
632de067 | 1331 | printf ("%02X ", data[j]); |
4b9206ed | 1332 | putc ('\n'); |
632de067 LJ |
1333 | printf ("Revision Code %02X %02X\n", data[91], data[92]); |
1334 | printf ("Manufacturing Date %02X %02X\n", data[93], data[94]); | |
4b9206ed | 1335 | puts ("Assembly Serial Number "); |
e857a5bd | 1336 | for (j = 95; j <= 98; j++) |
632de067 | 1337 | printf ("%02X ", data[j]); |
4b9206ed | 1338 | putc ('\n'); |
81a8824f | 1339 | |
0df6b844 | 1340 | if (DDR2 != type) { |
632de067 LJ |
1341 | printf ("Speed rating PC%d\n", |
1342 | data[126] == 0x66 ? 66 : data[126]); | |
0df6b844 | 1343 | } |
81a8824f WD |
1344 | return 0; |
1345 | } | |
90253178 | 1346 | #endif |
81a8824f | 1347 | |
735987c5 TWHT |
1348 | /* |
1349 | * Syntax: | |
1350 | * i2c edid {i2c_chip} | |
1351 | */ | |
1352 | #if defined(CONFIG_I2C_EDID) | |
1353 | int do_edid(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) | |
1354 | { | |
1355 | u_char chip; | |
1356 | struct edid1_info edid; | |
1357 | ||
1358 | if (argc < 2) { | |
1359 | cmd_usage(cmdtp); | |
1360 | return 1; | |
1361 | } | |
1362 | ||
1363 | chip = simple_strtoul(argv[1], NULL, 16); | |
1364 | if (i2c_read(chip, 0, 1, (uchar *)&edid, sizeof(edid)) != 0) { | |
1365 | puts("Error reading EDID content.\n"); | |
1366 | return 1; | |
1367 | } | |
1368 | ||
1369 | if (edid_check_info(&edid)) { | |
1370 | puts("Content isn't valid EDID.\n"); | |
1371 | return 1; | |
1372 | } | |
1373 | ||
1374 | edid_print_info(&edid); | |
1375 | return 0; | |
1376 | ||
1377 | } | |
1378 | #endif /* CONFIG_I2C_EDID */ | |
1379 | ||
06afa388 | 1380 | /** |
3f4978c7 | 1381 | * do_i2c_show_bus() - Handle the "i2c bus" command-line command |
06afa388 MV |
1382 | * @cmdtp: Command data struct pointer |
1383 | * @flag: Command flag | |
1384 | * @argc: Command-line argument count | |
1385 | * @argv: Array of command-line arguments | |
1386 | * | |
1387 | * Returns zero always. | |
1388 | */ | |
3f4978c7 HS |
1389 | #if defined(CONFIG_SYS_I2C) |
1390 | int do_i2c_show_bus(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
67b23a32 | 1391 | { |
3f4978c7 HS |
1392 | int i; |
1393 | #ifndef CONFIG_SYS_I2C_DIRECT_BUS | |
1394 | int j; | |
1395 | #endif | |
67b23a32 HS |
1396 | |
1397 | if (argc == 1) { | |
1398 | /* show all busses */ | |
3f4978c7 HS |
1399 | for (i = 0; i < CONFIG_SYS_NUM_I2C_BUSES; i++) { |
1400 | printf("Bus %d:\t%s", i, I2C_ADAP_NR(i)->name); | |
1401 | #ifndef CONFIG_SYS_I2C_DIRECT_BUS | |
1402 | for (j = 0; j < CONFIG_SYS_I2C_MAX_HOPS; j++) { | |
1403 | if (i2c_bus[i].next_hop[j].chip == 0) | |
1404 | break; | |
1405 | printf("->%s@0x%2x:%d", | |
1406 | i2c_bus[i].next_hop[j].mux.name, | |
1407 | i2c_bus[i].next_hop[j].chip, | |
1408 | i2c_bus[i].next_hop[j].channel); | |
67b23a32 | 1409 | } |
3f4978c7 HS |
1410 | #endif |
1411 | printf("\n"); | |
67b23a32 HS |
1412 | } |
1413 | } else { | |
3f4978c7 HS |
1414 | /* show specific bus */ |
1415 | i = simple_strtoul(argv[1], NULL, 10); | |
1416 | if (i >= CONFIG_SYS_NUM_I2C_BUSES) { | |
1417 | printf("Invalid bus %d\n", i); | |
1418 | return -1; | |
1419 | } | |
1420 | printf("Bus %d:\t%s", i, I2C_ADAP_NR(i)->name); | |
1421 | #ifndef CONFIG_SYS_I2C_DIRECT_BUS | |
1422 | for (j = 0; j < CONFIG_SYS_I2C_MAX_HOPS; j++) { | |
1423 | if (i2c_bus[i].next_hop[j].chip == 0) | |
1424 | break; | |
1425 | printf("->%s@0x%2x:%d", | |
1426 | i2c_bus[i].next_hop[j].mux.name, | |
1427 | i2c_bus[i].next_hop[j].chip, | |
1428 | i2c_bus[i].next_hop[j].channel); | |
1429 | } | |
1430 | #endif | |
1431 | printf("\n"); | |
67b23a32 | 1432 | } |
3f4978c7 HS |
1433 | |
1434 | return 0; | |
67b23a32 | 1435 | } |
3f4978c7 | 1436 | #endif |
67b23a32 | 1437 | |
06afa388 MV |
1438 | /** |
1439 | * do_i2c_bus_num() - Handle the "i2c dev" command-line command | |
1440 | * @cmdtp: Command data struct pointer | |
1441 | * @flag: Command flag | |
1442 | * @argc: Command-line argument count | |
1443 | * @argv: Array of command-line arguments | |
1444 | * | |
1445 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1446 | * on error. | |
1447 | */ | |
3f4978c7 HS |
1448 | #if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS) |
1449 | int do_i2c_bus_num(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
bb99ad6d | 1450 | { |
3f4978c7 HS |
1451 | int ret = 0; |
1452 | unsigned int bus_no; | |
bb99ad6d | 1453 | |
e857a5bd TT |
1454 | if (argc == 1) |
1455 | /* querying current setting */ | |
bb99ad6d | 1456 | printf("Current bus is %d\n", i2c_get_bus_num()); |
e857a5bd | 1457 | else { |
3f4978c7 HS |
1458 | bus_no = simple_strtoul(argv[1], NULL, 10); |
1459 | if (bus_no >= CONFIG_SYS_NUM_I2C_BUSES) { | |
1460 | printf("Invalid bus %d\n", bus_no); | |
1461 | return -1; | |
1462 | } | |
1463 | printf("Setting bus to %d\n", bus_no); | |
1464 | ret = i2c_set_bus_num(bus_no); | |
e857a5bd | 1465 | if (ret) |
bb99ad6d | 1466 | printf("Failure changing bus number (%d)\n", ret); |
bb99ad6d BW |
1467 | } |
1468 | return ret; | |
1469 | } | |
3f4978c7 | 1470 | #endif /* defined(CONFIG_SYS_I2C) */ |
bb99ad6d | 1471 | |
06afa388 MV |
1472 | /** |
1473 | * do_i2c_bus_speed() - Handle the "i2c speed" command-line command | |
1474 | * @cmdtp: Command data struct pointer | |
1475 | * @flag: Command flag | |
1476 | * @argc: Command-line argument count | |
1477 | * @argv: Array of command-line arguments | |
1478 | * | |
1479 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1480 | * on error. | |
1481 | */ | |
54841ab5 | 1482 | static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bb99ad6d BW |
1483 | { |
1484 | int speed, ret=0; | |
1485 | ||
e857a5bd TT |
1486 | if (argc == 1) |
1487 | /* querying current speed */ | |
bb99ad6d | 1488 | printf("Current bus speed=%d\n", i2c_get_bus_speed()); |
e857a5bd | 1489 | else { |
bb99ad6d BW |
1490 | speed = simple_strtoul(argv[1], NULL, 10); |
1491 | printf("Setting bus speed to %d Hz\n", speed); | |
1492 | ret = i2c_set_bus_speed(speed); | |
e857a5bd | 1493 | if (ret) |
bb99ad6d | 1494 | printf("Failure changing bus speed (%d)\n", ret); |
bb99ad6d BW |
1495 | } |
1496 | return ret; | |
1497 | } | |
1498 | ||
06afa388 MV |
1499 | /** |
1500 | * do_i2c_mm() - Handle the "i2c mm" command-line command | |
1501 | * @cmdtp: Command data struct pointer | |
1502 | * @flag: Command flag | |
1503 | * @argc: Command-line argument count | |
1504 | * @argv: Array of command-line arguments | |
1505 | * | |
1506 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1507 | * on error. | |
1508 | */ | |
54841ab5 | 1509 | static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bb99ad6d | 1510 | { |
bfc3b77e FM |
1511 | return mod_i2c_mem (cmdtp, 1, flag, argc, argv); |
1512 | } | |
1513 | ||
06afa388 MV |
1514 | /** |
1515 | * do_i2c_nm() - Handle the "i2c nm" command-line command | |
1516 | * @cmdtp: Command data struct pointer | |
1517 | * @flag: Command flag | |
1518 | * @argc: Command-line argument count | |
1519 | * @argv: Array of command-line arguments | |
1520 | * | |
1521 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1522 | * on error. | |
1523 | */ | |
54841ab5 | 1524 | static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bfc3b77e FM |
1525 | { |
1526 | return mod_i2c_mem (cmdtp, 0, flag, argc, argv); | |
1527 | } | |
e96ad5d3 | 1528 | |
06afa388 MV |
1529 | /** |
1530 | * do_i2c_reset() - Handle the "i2c reset" command-line command | |
1531 | * @cmdtp: Command data struct pointer | |
1532 | * @flag: Command flag | |
1533 | * @argc: Command-line argument count | |
1534 | * @argv: Array of command-line arguments | |
1535 | * | |
1536 | * Returns zero always. | |
1537 | */ | |
54841ab5 | 1538 | static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bfc3b77e | 1539 | { |
3f4978c7 HS |
1540 | #if defined(CONFIG_SYS_I2C) |
1541 | i2c_init(I2C_ADAP->speed, I2C_ADAP->slaveaddr); | |
1542 | #else | |
bfc3b77e | 1543 | i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
3f4978c7 | 1544 | #endif |
bfc3b77e FM |
1545 | return 0; |
1546 | } | |
1547 | ||
1548 | static cmd_tbl_t cmd_i2c_sub[] = { | |
3f4978c7 HS |
1549 | #if defined(CONFIG_SYS_I2C) |
1550 | U_BOOT_CMD_MKENT(bus, 1, 1, do_i2c_show_bus, "", ""), | |
9a2accb4 | 1551 | #endif |
bfc3b77e | 1552 | U_BOOT_CMD_MKENT(crc32, 3, 1, do_i2c_crc, "", ""), |
3f4978c7 HS |
1553 | #if defined(CONFIG_SYS_I2C) || \ |
1554 | defined(CONFIG_I2C_MULTI_BUS) | |
bfc3b77e | 1555 | U_BOOT_CMD_MKENT(dev, 1, 1, do_i2c_bus_num, "", ""), |
bb99ad6d | 1556 | #endif /* CONFIG_I2C_MULTI_BUS */ |
735987c5 TWHT |
1557 | #if defined(CONFIG_I2C_EDID) |
1558 | U_BOOT_CMD_MKENT(edid, 1, 1, do_edid, "", ""), | |
1559 | #endif /* CONFIG_I2C_EDID */ | |
bfc3b77e FM |
1560 | U_BOOT_CMD_MKENT(loop, 3, 1, do_i2c_loop, "", ""), |
1561 | U_BOOT_CMD_MKENT(md, 3, 1, do_i2c_md, "", ""), | |
1562 | U_BOOT_CMD_MKENT(mm, 2, 1, do_i2c_mm, "", ""), | |
1563 | U_BOOT_CMD_MKENT(mw, 3, 1, do_i2c_mw, "", ""), | |
1564 | U_BOOT_CMD_MKENT(nm, 2, 1, do_i2c_nm, "", ""), | |
1565 | U_BOOT_CMD_MKENT(probe, 0, 1, do_i2c_probe, "", ""), | |
652e5354 | 1566 | U_BOOT_CMD_MKENT(read, 5, 1, do_i2c_read, "", ""), |
ff5d2dce | 1567 | U_BOOT_CMD_MKENT(write, 5, 0, do_i2c_write, "", ""), |
bfc3b77e | 1568 | U_BOOT_CMD_MKENT(reset, 0, 1, do_i2c_reset, "", ""), |
c76fe474 | 1569 | #if defined(CONFIG_CMD_SDRAM) |
bfc3b77e | 1570 | U_BOOT_CMD_MKENT(sdram, 1, 1, do_sdram, "", ""), |
90253178 | 1571 | #endif |
bfc3b77e FM |
1572 | U_BOOT_CMD_MKENT(speed, 1, 1, do_i2c_bus_speed, "", ""), |
1573 | }; | |
1574 | ||
2e5167cc | 1575 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
f1d2b313 HS |
1576 | void i2c_reloc(void) { |
1577 | fixup_cmdtable(cmd_i2c_sub, ARRAY_SIZE(cmd_i2c_sub)); | |
1578 | } | |
1579 | #endif | |
1580 | ||
06afa388 MV |
1581 | /** |
1582 | * do_i2c() - Handle the "i2c" command-line command | |
1583 | * @cmdtp: Command data struct pointer | |
1584 | * @flag: Command flag | |
1585 | * @argc: Command-line argument count | |
1586 | * @argv: Array of command-line arguments | |
1587 | * | |
1588 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1589 | * on error. | |
1590 | */ | |
54841ab5 | 1591 | static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bfc3b77e FM |
1592 | { |
1593 | cmd_tbl_t *c; | |
1594 | ||
4444b221 | 1595 | if (argc < 2) |
4c12eeb8 | 1596 | return CMD_RET_USAGE; |
4444b221 | 1597 | |
bfc3b77e FM |
1598 | /* Strip off leading 'i2c' command argument */ |
1599 | argc--; | |
1600 | argv++; | |
1601 | ||
1602 | c = find_cmd_tbl(argv[0], &cmd_i2c_sub[0], ARRAY_SIZE(cmd_i2c_sub)); | |
1603 | ||
47e26b1b | 1604 | if (c) |
4c12eeb8 | 1605 | return c->cmd(cmdtp, flag, argc, argv); |
47e26b1b | 1606 | else |
4c12eeb8 | 1607 | return CMD_RET_USAGE; |
bb99ad6d | 1608 | } |
8bde7f77 WD |
1609 | |
1610 | /***************************************************/ | |
088f1b19 KP |
1611 | #ifdef CONFIG_SYS_LONGHELP |
1612 | static char i2c_help_text[] = | |
3f4978c7 HS |
1613 | #if defined(CONFIG_SYS_I2C) |
1614 | "bus [muxtype:muxaddr:muxchannel] - show I2C bus info\n" | |
9a2accb4 | 1615 | #endif |
fb0070e9 | 1616 | "crc32 chip address[.0, .1, .2] count - compute CRC32 checksum\n" |
3f4978c7 HS |
1617 | #if defined(CONFIG_SYS_I2C) || \ |
1618 | defined(CONFIG_I2C_MULTI_BUS) | |
9bc2e4ee | 1619 | "i2c dev [dev] - show or set current I2C bus\n" |
d9fc7032 | 1620 | #endif /* CONFIG_I2C_MULTI_BUS */ |
735987c5 TWHT |
1621 | #if defined(CONFIG_I2C_EDID) |
1622 | "i2c edid chip - print EDID configuration information\n" | |
1623 | #endif /* CONFIG_I2C_EDID */ | |
fb0070e9 | 1624 | "i2c loop chip address[.0, .1, .2] [# of objects] - looping read of device\n" |
d9fc7032 MF |
1625 | "i2c md chip address[.0, .1, .2] [# of objects] - read from I2C device\n" |
1626 | "i2c mm chip address[.0, .1, .2] - write to I2C device (auto-incrementing)\n" | |
1627 | "i2c mw chip address[.0, .1, .2] value [count] - write to I2C device (fill)\n" | |
1628 | "i2c nm chip address[.0, .1, .2] - write to I2C device (constant address)\n" | |
54b99e51 | 1629 | "i2c probe [address] - test for and show device(s) on the I2C bus\n" |
652e5354 | 1630 | "i2c read chip address[.0, .1, .2] length memaddress - read to memory \n" |
ff5d2dce | 1631 | "i2c write memaddress chip address[.0, .1, .2] length - write memory to i2c\n" |
e43a27c4 | 1632 | "i2c reset - re-init the I2C Controller\n" |
c76fe474 | 1633 | #if defined(CONFIG_CMD_SDRAM) |
fb0070e9 | 1634 | "i2c sdram chip - print SDRAM configuration information\n" |
90253178 | 1635 | #endif |
088f1b19 KP |
1636 | "i2c speed [speed] - show or set I2C bus speed"; |
1637 | #endif | |
1638 | ||
1639 | U_BOOT_CMD( | |
1640 | i2c, 6, 1, do_i2c, | |
1641 | "I2C sub-system", | |
1642 | i2c_help_text | |
d9fc7032 | 1643 | ); |