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Commit | Line | Data |
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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 | * | |
1a459660 | 10 | * SPDX-License-Identifier: GPL-2.0+ |
81a8824f WD |
11 | */ |
12 | ||
13 | /* | |
14 | * I2C Functions similar to the standard memory functions. | |
15 | * | |
16 | * There are several parameters in many of the commands that bear further | |
17 | * explanations: | |
18 | * | |
81a8824f WD |
19 | * {i2c_chip} is the I2C chip address (the first byte sent on the bus). |
20 | * Each I2C chip on the bus has a unique address. On the I2C data bus, | |
21 | * the address is the upper seven bits and the LSB is the "read/write" | |
22 | * bit. Note that the {i2c_chip} address specified on the command | |
23 | * line is not shifted up: e.g. a typical EEPROM memory chip may have | |
24 | * an I2C address of 0x50, but the data put on the bus will be 0xA0 | |
25 | * for write and 0xA1 for read. This "non shifted" address notation | |
26 | * matches at least half of the data sheets :-/. | |
27 | * | |
28 | * {addr} is the address (or offset) within the chip. Small memory | |
29 | * chips have 8 bit addresses. Large memory chips have 16 bit | |
30 | * addresses. Other memory chips have 9, 10, or 11 bit addresses. | |
31 | * Many non-memory chips have multiple registers and {addr} is used | |
32 | * as the register index. Some non-memory chips have only one register | |
33 | * and therefore don't need any {addr} parameter. | |
34 | * | |
35 | * The default {addr} parameter is one byte (.1) which works well for | |
36 | * memories and registers with 8 bits of address space. | |
37 | * | |
38 | * You can specify the length of the {addr} field with the optional .0, | |
39 | * .1, or .2 modifier (similar to the .b, .w, .l modifier). If you are | |
40 | * manipulating a single register device which doesn't use an address | |
41 | * field, use "0.0" for the address and the ".0" length field will | |
42 | * suppress the address in the I2C data stream. This also works for | |
43 | * successive reads using the I2C auto-incrementing memory pointer. | |
44 | * | |
45 | * If you are manipulating a large memory with 2-byte addresses, use | |
46 | * the .2 address modifier, e.g. 210.2 addresses location 528 (decimal). | |
47 | * | |
48 | * Then there are the unfortunate memory chips that spill the most | |
49 | * significant 1, 2, or 3 bits of address into the chip address byte. | |
50 | * This effectively makes one chip (logically) look like 2, 4, or | |
51 | * 8 chips. This is handled (awkwardly) by #defining | |
6d0f6bcf | 52 | * CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW and using the .1 modifier on the |
81a8824f WD |
53 | * {addr} field (since .1 is the default, it doesn't actually have to |
54 | * be specified). Examples: given a memory chip at I2C chip address | |
55 | * 0x50, the following would happen... | |
0f89c54b | 56 | * i2c md 50 0 10 display 16 bytes starting at 0x000 |
81a8824f | 57 | * On the bus: <S> A0 00 <E> <S> A1 <rd> ... <rd> |
0f89c54b | 58 | * i2c md 50 100 10 display 16 bytes starting at 0x100 |
81a8824f | 59 | * On the bus: <S> A2 00 <E> <S> A3 <rd> ... <rd> |
0f89c54b | 60 | * i2c md 50 210 10 display 16 bytes starting at 0x210 |
81a8824f WD |
61 | * On the bus: <S> A4 10 <E> <S> A5 <rd> ... <rd> |
62 | * This is awfully ugly. It would be nice if someone would think up | |
63 | * a better way of handling this. | |
64 | * | |
65 | * Adapted from cmd_mem.c which is copyright Wolfgang Denk (wd@denx.de). | |
66 | */ | |
67 | ||
68 | #include <common.h> | |
0098e179 | 69 | #include <bootretry.h> |
18d66533 | 70 | #include <cli.h> |
81a8824f | 71 | #include <command.h> |
735987c5 | 72 | #include <edid.h> |
67b23a32 | 73 | #include <environment.h> |
81a8824f | 74 | #include <i2c.h> |
67b23a32 | 75 | #include <malloc.h> |
81a8824f | 76 | #include <asm/byteorder.h> |
2515d843 | 77 | #include <linux/compiler.h> |
81a8824f | 78 | |
3f4978c7 HS |
79 | DECLARE_GLOBAL_DATA_PTR; |
80 | ||
81a8824f WD |
81 | /* Display values from last command. |
82 | * Memory modify remembered values are different from display memory. | |
83 | */ | |
84 | static uchar i2c_dp_last_chip; | |
85 | static uint i2c_dp_last_addr; | |
86 | static uint i2c_dp_last_alen; | |
87 | static uint i2c_dp_last_length = 0x10; | |
88 | ||
89 | static uchar i2c_mm_last_chip; | |
90 | static uint i2c_mm_last_addr; | |
91 | static uint i2c_mm_last_alen; | |
92 | ||
bb99ad6d BW |
93 | /* If only one I2C bus is present, the list of devices to ignore when |
94 | * the probe command is issued is represented by a 1D array of addresses. | |
95 | * When multiple buses are present, the list is an array of bus-address | |
96 | * pairs. The following macros take care of this */ | |
97 | ||
6d0f6bcf | 98 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
9a2accb4 | 99 | #if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS) |
bb99ad6d BW |
100 | static struct |
101 | { | |
102 | uchar bus; | |
103 | uchar addr; | |
6d0f6bcf | 104 | } i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES; |
bb99ad6d BW |
105 | #define GET_BUS_NUM i2c_get_bus_num() |
106 | #define COMPARE_BUS(b,i) (i2c_no_probes[(i)].bus == (b)) | |
107 | #define COMPARE_ADDR(a,i) (i2c_no_probes[(i)].addr == (a)) | |
108 | #define NO_PROBE_ADDR(i) i2c_no_probes[(i)].addr | |
109 | #else /* single bus */ | |
6d0f6bcf | 110 | static uchar i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES; |
bb99ad6d BW |
111 | #define GET_BUS_NUM 0 |
112 | #define COMPARE_BUS(b,i) ((b) == 0) /* Make compiler happy */ | |
113 | #define COMPARE_ADDR(a,i) (i2c_no_probes[(i)] == (a)) | |
114 | #define NO_PROBE_ADDR(i) i2c_no_probes[(i)] | |
3f4978c7 | 115 | #endif /* defined(CONFIG_SYS_I2C) */ |
67b23a32 HS |
116 | #endif |
117 | ||
a266fe95 FM |
118 | #define DISP_LINE_LEN 16 |
119 | ||
06afa388 MV |
120 | /** |
121 | * i2c_init_board() - Board-specific I2C bus init | |
122 | * | |
123 | * This function is the default no-op implementation of I2C bus | |
124 | * initialization. This function can be overriden by board-specific | |
125 | * implementation if needed. | |
126 | */ | |
2515d843 MV |
127 | __weak |
128 | void i2c_init_board(void) | |
c649dda5 | 129 | { |
c649dda5 | 130 | } |
c649dda5 | 131 | |
655b34a7 | 132 | /* TODO: Implement architecture-specific get/set functions */ |
06afa388 MV |
133 | |
134 | /** | |
135 | * i2c_get_bus_speed() - Return I2C bus speed | |
136 | * | |
137 | * This function is the default implementation of function for retrieveing | |
138 | * the current I2C bus speed in Hz. | |
139 | * | |
140 | * A driver implementing runtime switching of I2C bus speed must override | |
141 | * this function to report the speed correctly. Simple or legacy drivers | |
142 | * can use this fallback. | |
143 | * | |
144 | * Returns I2C bus speed in Hz. | |
145 | */ | |
3f4978c7 HS |
146 | #if !defined(CONFIG_SYS_I2C) |
147 | /* | |
148 | * TODO: Implement architecture-specific get/set functions | |
149 | * Should go away, if we switched completely to new multibus support | |
150 | */ | |
2515d843 MV |
151 | __weak |
152 | unsigned int i2c_get_bus_speed(void) | |
655b34a7 PT |
153 | { |
154 | return CONFIG_SYS_I2C_SPEED; | |
155 | } | |
655b34a7 | 156 | |
06afa388 MV |
157 | /** |
158 | * i2c_set_bus_speed() - Configure I2C bus speed | |
159 | * @speed: Newly set speed of the I2C bus in Hz | |
160 | * | |
161 | * This function is the default implementation of function for setting | |
162 | * the I2C bus speed in Hz. | |
163 | * | |
164 | * A driver implementing runtime switching of I2C bus speed must override | |
165 | * this function to report the speed correctly. Simple or legacy drivers | |
166 | * can use this fallback. | |
167 | * | |
168 | * Returns zero on success, negative value on error. | |
169 | */ | |
2515d843 MV |
170 | __weak |
171 | int i2c_set_bus_speed(unsigned int speed) | |
655b34a7 PT |
172 | { |
173 | if (speed != CONFIG_SYS_I2C_SPEED) | |
174 | return -1; | |
175 | ||
176 | return 0; | |
177 | } | |
3f4978c7 | 178 | #endif |
655b34a7 | 179 | |
06afa388 MV |
180 | /** |
181 | * get_alen() - Small parser helper function to get address length | |
182 | * | |
183 | * Returns the address length. | |
2c0dc990 FM |
184 | */ |
185 | static uint get_alen(char *arg) | |
186 | { | |
187 | int j; | |
188 | int alen; | |
189 | ||
190 | alen = 1; | |
191 | for (j = 0; j < 8; j++) { | |
192 | if (arg[j] == '.') { | |
193 | alen = arg[j+1] - '0'; | |
2c0dc990 FM |
194 | break; |
195 | } else if (arg[j] == '\0') | |
196 | break; | |
197 | } | |
198 | return alen; | |
199 | } | |
200 | ||
06afa388 MV |
201 | /** |
202 | * do_i2c_read() - Handle the "i2c read" command-line command | |
203 | * @cmdtp: Command data struct pointer | |
204 | * @flag: Command flag | |
205 | * @argc: Command-line argument count | |
206 | * @argv: Array of command-line arguments | |
207 | * | |
208 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
209 | * on error. | |
210 | * | |
652e5354 FM |
211 | * Syntax: |
212 | * i2c read {i2c_chip} {devaddr}{.0, .1, .2} {len} {memaddr} | |
213 | */ | |
54841ab5 | 214 | static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
652e5354 FM |
215 | { |
216 | u_char chip; | |
217 | uint devaddr, alen, length; | |
218 | u_char *memaddr; | |
652e5354 | 219 | |
47e26b1b | 220 | if (argc != 5) |
4c12eeb8 | 221 | return CMD_RET_USAGE; |
652e5354 FM |
222 | |
223 | /* | |
224 | * I2C chip address | |
225 | */ | |
226 | chip = simple_strtoul(argv[1], NULL, 16); | |
227 | ||
228 | /* | |
229 | * I2C data address within the chip. This can be 1 or | |
230 | * 2 bytes long. Some day it might be 3 bytes long :-). | |
231 | */ | |
232 | devaddr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 233 | alen = get_alen(argv[2]); |
7a92e53c | 234 | if (alen > 3) |
4c12eeb8 | 235 | return CMD_RET_USAGE; |
652e5354 FM |
236 | |
237 | /* | |
238 | * Length is the number of objects, not number of bytes. | |
239 | */ | |
240 | length = simple_strtoul(argv[3], NULL, 16); | |
241 | ||
242 | /* | |
243 | * memaddr is the address where to store things in memory | |
244 | */ | |
245 | memaddr = (u_char *)simple_strtoul(argv[4], NULL, 16); | |
246 | ||
247 | if (i2c_read(chip, devaddr, alen, memaddr, length) != 0) { | |
248 | puts ("Error reading the chip.\n"); | |
249 | return 1; | |
250 | } | |
251 | return 0; | |
252 | } | |
253 | ||
ff5d2dce YS |
254 | static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
255 | { | |
256 | u_char chip; | |
257 | uint devaddr, alen, length; | |
258 | u_char *memaddr; | |
259 | ||
260 | if (argc != 5) | |
261 | return cmd_usage(cmdtp); | |
262 | ||
263 | /* | |
264 | * memaddr is the address where to store things in memory | |
265 | */ | |
266 | memaddr = (u_char *)simple_strtoul(argv[1], NULL, 16); | |
267 | ||
268 | /* | |
269 | * I2C chip address | |
270 | */ | |
271 | chip = simple_strtoul(argv[2], NULL, 16); | |
272 | ||
273 | /* | |
274 | * I2C data address within the chip. This can be 1 or | |
275 | * 2 bytes long. Some day it might be 3 bytes long :-). | |
276 | */ | |
277 | devaddr = simple_strtoul(argv[3], NULL, 16); | |
278 | alen = get_alen(argv[3]); | |
279 | if (alen > 3) | |
280 | return cmd_usage(cmdtp); | |
281 | ||
282 | /* | |
283 | * Length is the number of objects, not number of bytes. | |
284 | */ | |
285 | length = simple_strtoul(argv[4], NULL, 16); | |
286 | ||
287 | while (length-- > 0) { | |
288 | if (i2c_write(chip, devaddr++, alen, memaddr++, 1) != 0) { | |
289 | puts("Error writing to the chip.\n"); | |
290 | return 1; | |
291 | } | |
292 | /* | |
293 | * No write delay with FRAM devices. | |
294 | */ | |
295 | #if !defined(CONFIG_SYS_I2C_FRAM) | |
296 | udelay(11000); | |
297 | #endif | |
298 | } | |
299 | return 0; | |
300 | } | |
301 | ||
06afa388 MV |
302 | /** |
303 | * do_i2c_md() - Handle the "i2c md" command-line command | |
304 | * @cmdtp: Command data struct pointer | |
305 | * @flag: Command flag | |
306 | * @argc: Command-line argument count | |
307 | * @argv: Array of command-line arguments | |
308 | * | |
309 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
310 | * on error. | |
311 | * | |
4a8cf338 FM |
312 | * Syntax: |
313 | * i2c md {i2c_chip} {addr}{.0, .1, .2} {len} | |
314 | */ | |
54841ab5 | 315 | static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
316 | { |
317 | u_char chip; | |
318 | uint addr, alen, length; | |
319 | int j, nbytes, linebytes; | |
320 | ||
321 | /* We use the last specified parameters, unless new ones are | |
322 | * entered. | |
323 | */ | |
324 | chip = i2c_dp_last_chip; | |
325 | addr = i2c_dp_last_addr; | |
326 | alen = i2c_dp_last_alen; | |
327 | length = i2c_dp_last_length; | |
328 | ||
47e26b1b | 329 | if (argc < 3) |
4c12eeb8 | 330 | return CMD_RET_USAGE; |
81a8824f WD |
331 | |
332 | if ((flag & CMD_FLAG_REPEAT) == 0) { | |
333 | /* | |
334 | * New command specified. | |
335 | */ | |
81a8824f WD |
336 | |
337 | /* | |
338 | * I2C chip address | |
339 | */ | |
340 | chip = simple_strtoul(argv[1], NULL, 16); | |
341 | ||
342 | /* | |
343 | * I2C data address within the chip. This can be 1 or | |
344 | * 2 bytes long. Some day it might be 3 bytes long :-). | |
345 | */ | |
346 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 347 | alen = get_alen(argv[2]); |
7a92e53c | 348 | if (alen > 3) |
4c12eeb8 | 349 | return CMD_RET_USAGE; |
81a8824f WD |
350 | |
351 | /* | |
352 | * If another parameter, it is the length to display. | |
353 | * Length is the number of objects, not number of bytes. | |
354 | */ | |
355 | if (argc > 3) | |
356 | length = simple_strtoul(argv[3], NULL, 16); | |
357 | } | |
358 | ||
359 | /* | |
360 | * Print the lines. | |
361 | * | |
362 | * We buffer all read data, so we can make sure data is read only | |
363 | * once. | |
364 | */ | |
365 | nbytes = length; | |
366 | do { | |
367 | unsigned char linebuf[DISP_LINE_LEN]; | |
368 | unsigned char *cp; | |
369 | ||
370 | linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes; | |
371 | ||
e857a5bd | 372 | if (i2c_read(chip, addr, alen, linebuf, linebytes) != 0) |
4b9206ed | 373 | puts ("Error reading the chip.\n"); |
e857a5bd | 374 | else { |
81a8824f WD |
375 | printf("%04x:", addr); |
376 | cp = linebuf; | |
377 | for (j=0; j<linebytes; j++) { | |
378 | printf(" %02x", *cp++); | |
379 | addr++; | |
380 | } | |
4b9206ed | 381 | puts (" "); |
81a8824f WD |
382 | cp = linebuf; |
383 | for (j=0; j<linebytes; j++) { | |
384 | if ((*cp < 0x20) || (*cp > 0x7e)) | |
4b9206ed | 385 | puts ("."); |
81a8824f WD |
386 | else |
387 | printf("%c", *cp); | |
388 | cp++; | |
389 | } | |
4b9206ed | 390 | putc ('\n'); |
81a8824f WD |
391 | } |
392 | nbytes -= linebytes; | |
393 | } while (nbytes > 0); | |
394 | ||
395 | i2c_dp_last_chip = chip; | |
396 | i2c_dp_last_addr = addr; | |
397 | i2c_dp_last_alen = alen; | |
398 | i2c_dp_last_length = length; | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
06afa388 MV |
403 | /** |
404 | * do_i2c_mw() - Handle the "i2c mw" command-line command | |
405 | * @cmdtp: Command data struct pointer | |
406 | * @flag: Command flag | |
407 | * @argc: Command-line argument count | |
408 | * @argv: Array of command-line arguments | |
409 | * | |
410 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
411 | * on error. | |
81a8824f WD |
412 | * |
413 | * Syntax: | |
0f89c54b | 414 | * i2c mw {i2c_chip} {addr}{.0, .1, .2} {data} [{count}] |
81a8824f | 415 | */ |
54841ab5 | 416 | static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
417 | { |
418 | uchar chip; | |
419 | ulong addr; | |
420 | uint alen; | |
421 | uchar byte; | |
422 | int count; | |
81a8824f | 423 | |
47e26b1b | 424 | if ((argc < 4) || (argc > 5)) |
4c12eeb8 | 425 | return CMD_RET_USAGE; |
81a8824f WD |
426 | |
427 | /* | |
53677ef1 WD |
428 | * Chip is always specified. |
429 | */ | |
81a8824f WD |
430 | chip = simple_strtoul(argv[1], NULL, 16); |
431 | ||
432 | /* | |
433 | * Address is always specified. | |
434 | */ | |
435 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 436 | alen = get_alen(argv[2]); |
7a92e53c | 437 | if (alen > 3) |
4c12eeb8 | 438 | return CMD_RET_USAGE; |
81a8824f WD |
439 | |
440 | /* | |
441 | * Value to write is always specified. | |
442 | */ | |
443 | byte = simple_strtoul(argv[3], NULL, 16); | |
444 | ||
445 | /* | |
446 | * Optional count | |
447 | */ | |
e857a5bd | 448 | if (argc == 5) |
81a8824f | 449 | count = simple_strtoul(argv[4], NULL, 16); |
e857a5bd | 450 | else |
81a8824f | 451 | count = 1; |
81a8824f WD |
452 | |
453 | while (count-- > 0) { | |
e857a5bd | 454 | if (i2c_write(chip, addr++, alen, &byte, 1) != 0) |
4b9206ed | 455 | puts ("Error writing the chip.\n"); |
81a8824f WD |
456 | /* |
457 | * Wait for the write to complete. The write can take | |
458 | * up to 10mSec (we allow a little more time). | |
81a8824f | 459 | */ |
d4f5c728 | 460 | /* |
461 | * No write delay with FRAM devices. | |
462 | */ | |
6d0f6bcf | 463 | #if !defined(CONFIG_SYS_I2C_FRAM) |
81a8824f | 464 | udelay(11000); |
d4f5c728 | 465 | #endif |
81a8824f WD |
466 | } |
467 | ||
06afa388 | 468 | return 0; |
81a8824f WD |
469 | } |
470 | ||
06afa388 MV |
471 | /** |
472 | * do_i2c_crc() - Handle the "i2c crc32" command-line command | |
473 | * @cmdtp: Command data struct pointer | |
474 | * @flag: Command flag | |
475 | * @argc: Command-line argument count | |
476 | * @argv: Array of command-line arguments | |
477 | * | |
478 | * Calculate a CRC on memory | |
479 | * | |
480 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
481 | * on error. | |
81a8824f WD |
482 | * |
483 | * Syntax: | |
0f89c54b | 484 | * i2c crc32 {i2c_chip} {addr}{.0, .1, .2} {count} |
81a8824f | 485 | */ |
54841ab5 | 486 | static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
487 | { |
488 | uchar chip; | |
489 | ulong addr; | |
490 | uint alen; | |
491 | int count; | |
492 | uchar byte; | |
493 | ulong crc; | |
494 | ulong err; | |
81a8824f | 495 | |
47e26b1b | 496 | if (argc < 4) |
4c12eeb8 | 497 | return CMD_RET_USAGE; |
81a8824f WD |
498 | |
499 | /* | |
53677ef1 WD |
500 | * Chip is always specified. |
501 | */ | |
81a8824f WD |
502 | chip = simple_strtoul(argv[1], NULL, 16); |
503 | ||
504 | /* | |
505 | * Address is always specified. | |
506 | */ | |
507 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 508 | alen = get_alen(argv[2]); |
7a92e53c | 509 | if (alen > 3) |
4c12eeb8 | 510 | return CMD_RET_USAGE; |
81a8824f WD |
511 | |
512 | /* | |
513 | * Count is always specified | |
514 | */ | |
515 | count = simple_strtoul(argv[3], NULL, 16); | |
516 | ||
517 | printf ("CRC32 for %08lx ... %08lx ==> ", addr, addr + count - 1); | |
518 | /* | |
519 | * CRC a byte at a time. This is going to be slooow, but hey, the | |
520 | * memories are small and slow too so hopefully nobody notices. | |
521 | */ | |
522 | crc = 0; | |
523 | err = 0; | |
e857a5bd TT |
524 | while (count-- > 0) { |
525 | if (i2c_read(chip, addr, alen, &byte, 1) != 0) | |
81a8824f | 526 | err++; |
81a8824f WD |
527 | crc = crc32 (crc, &byte, 1); |
528 | addr++; | |
529 | } | |
e857a5bd | 530 | if (err > 0) |
4b9206ed | 531 | puts ("Error reading the chip,\n"); |
e857a5bd | 532 | else |
81a8824f | 533 | printf ("%08lx\n", crc); |
81a8824f WD |
534 | |
535 | return 0; | |
536 | } | |
537 | ||
06afa388 MV |
538 | /** |
539 | * mod_i2c_mem() - Handle the "i2c mm" and "i2c nm" command-line command | |
540 | * @cmdtp: Command data struct pointer | |
541 | * @flag: Command flag | |
542 | * @argc: Command-line argument count | |
543 | * @argv: Array of command-line arguments | |
544 | * | |
545 | * Modify memory. | |
546 | * | |
547 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
548 | * on error. | |
81a8824f WD |
549 | * |
550 | * Syntax: | |
0f89c54b PT |
551 | * i2c mm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2} |
552 | * i2c nm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2} | |
81a8824f | 553 | */ |
81a8824f | 554 | static int |
54841ab5 | 555 | mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[]) |
81a8824f WD |
556 | { |
557 | uchar chip; | |
558 | ulong addr; | |
559 | uint alen; | |
560 | ulong data; | |
561 | int size = 1; | |
562 | int nbytes; | |
81a8824f | 563 | |
47e26b1b | 564 | if (argc != 3) |
4c12eeb8 | 565 | return CMD_RET_USAGE; |
81a8824f WD |
566 | |
567 | #ifdef CONFIG_BOOT_RETRY_TIME | |
568 | reset_cmd_timeout(); /* got a good command to get here */ | |
569 | #endif | |
570 | /* | |
571 | * We use the last specified parameters, unless new ones are | |
572 | * entered. | |
573 | */ | |
574 | chip = i2c_mm_last_chip; | |
575 | addr = i2c_mm_last_addr; | |
576 | alen = i2c_mm_last_alen; | |
577 | ||
578 | if ((flag & CMD_FLAG_REPEAT) == 0) { | |
579 | /* | |
580 | * New command specified. Check for a size specification. | |
581 | * Defaults to byte if no or incorrect specification. | |
582 | */ | |
583 | size = cmd_get_data_size(argv[0], 1); | |
584 | ||
585 | /* | |
53677ef1 WD |
586 | * Chip is always specified. |
587 | */ | |
81a8824f WD |
588 | chip = simple_strtoul(argv[1], NULL, 16); |
589 | ||
590 | /* | |
591 | * Address is always specified. | |
592 | */ | |
593 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 594 | alen = get_alen(argv[2]); |
7a92e53c | 595 | if (alen > 3) |
4c12eeb8 | 596 | return CMD_RET_USAGE; |
81a8824f WD |
597 | } |
598 | ||
599 | /* | |
600 | * Print the address, followed by value. Then accept input for | |
601 | * the next value. A non-converted value exits. | |
602 | */ | |
603 | do { | |
604 | printf("%08lx:", addr); | |
e857a5bd | 605 | if (i2c_read(chip, addr, alen, (uchar *)&data, size) != 0) |
4b9206ed | 606 | puts ("\nError reading the chip,\n"); |
e857a5bd | 607 | else { |
81a8824f | 608 | data = cpu_to_be32(data); |
e857a5bd | 609 | if (size == 1) |
81a8824f | 610 | printf(" %02lx", (data >> 24) & 0x000000FF); |
e857a5bd | 611 | else if (size == 2) |
81a8824f | 612 | printf(" %04lx", (data >> 16) & 0x0000FFFF); |
e857a5bd | 613 | else |
81a8824f | 614 | printf(" %08lx", data); |
81a8824f WD |
615 | } |
616 | ||
e1bf824d | 617 | nbytes = cli_readline(" ? "); |
81a8824f WD |
618 | if (nbytes == 0) { |
619 | /* | |
620 | * <CR> pressed as only input, don't modify current | |
621 | * location and move to next. | |
622 | */ | |
623 | if (incrflag) | |
624 | addr += size; | |
625 | nbytes = size; | |
626 | #ifdef CONFIG_BOOT_RETRY_TIME | |
627 | reset_cmd_timeout(); /* good enough to not time out */ | |
628 | #endif | |
629 | } | |
630 | #ifdef CONFIG_BOOT_RETRY_TIME | |
e857a5bd | 631 | else if (nbytes == -2) |
81a8824f | 632 | break; /* timed out, exit the command */ |
81a8824f WD |
633 | #endif |
634 | else { | |
635 | char *endp; | |
636 | ||
637 | data = simple_strtoul(console_buffer, &endp, 16); | |
e857a5bd | 638 | if (size == 1) |
81a8824f | 639 | data = data << 24; |
e857a5bd | 640 | else if (size == 2) |
81a8824f | 641 | data = data << 16; |
81a8824f WD |
642 | data = be32_to_cpu(data); |
643 | nbytes = endp - console_buffer; | |
644 | if (nbytes) { | |
645 | #ifdef CONFIG_BOOT_RETRY_TIME | |
646 | /* | |
647 | * good enough to not time out | |
648 | */ | |
649 | reset_cmd_timeout(); | |
650 | #endif | |
e857a5bd | 651 | if (i2c_write(chip, addr, alen, (uchar *)&data, size) != 0) |
4b9206ed | 652 | puts ("Error writing the chip.\n"); |
6d0f6bcf JCPV |
653 | #ifdef CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS |
654 | udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000); | |
2535d602 | 655 | #endif |
81a8824f WD |
656 | if (incrflag) |
657 | addr += size; | |
658 | } | |
659 | } | |
660 | } while (nbytes); | |
661 | ||
0800707b PT |
662 | i2c_mm_last_chip = chip; |
663 | i2c_mm_last_addr = addr; | |
664 | i2c_mm_last_alen = alen; | |
81a8824f WD |
665 | |
666 | return 0; | |
667 | } | |
668 | ||
06afa388 MV |
669 | /** |
670 | * do_i2c_probe() - Handle the "i2c probe" command-line command | |
671 | * @cmdtp: Command data struct pointer | |
672 | * @flag: Command flag | |
673 | * @argc: Command-line argument count | |
674 | * @argv: Array of command-line arguments | |
675 | * | |
676 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
677 | * on error. | |
678 | * | |
81a8824f | 679 | * Syntax: |
54b99e51 EN |
680 | * i2c probe {addr} |
681 | * | |
682 | * Returns zero (success) if one or more I2C devices was found | |
81a8824f | 683 | */ |
54841ab5 | 684 | static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
685 | { |
686 | int j; | |
54b99e51 EN |
687 | int addr = -1; |
688 | int found = 0; | |
6d0f6bcf | 689 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
81a8824f | 690 | int k, skip; |
3f4978c7 | 691 | unsigned int bus = GET_BUS_NUM; |
bb99ad6d | 692 | #endif /* NOPROBES */ |
81a8824f | 693 | |
54b99e51 EN |
694 | if (argc == 2) |
695 | addr = simple_strtol(argv[1], 0, 16); | |
696 | ||
4b9206ed | 697 | puts ("Valid chip addresses:"); |
e857a5bd | 698 | for (j = 0; j < 128; j++) { |
54b99e51 EN |
699 | if ((0 <= addr) && (j != addr)) |
700 | continue; | |
701 | ||
6d0f6bcf | 702 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
81a8824f | 703 | skip = 0; |
cfb25cc4 | 704 | for (k = 0; k < ARRAY_SIZE(i2c_no_probes); k++) { |
e857a5bd | 705 | if (COMPARE_BUS(bus, k) && COMPARE_ADDR(j, k)) { |
81a8824f WD |
706 | skip = 1; |
707 | break; | |
708 | } | |
709 | } | |
710 | if (skip) | |
711 | continue; | |
712 | #endif | |
54b99e51 | 713 | if (i2c_probe(j) == 0) { |
81a8824f | 714 | printf(" %02X", j); |
54b99e51 EN |
715 | found++; |
716 | } | |
81a8824f | 717 | } |
4b9206ed | 718 | putc ('\n'); |
81a8824f | 719 | |
6d0f6bcf | 720 | #if defined(CONFIG_SYS_I2C_NOPROBES) |
81a8824f | 721 | puts ("Excluded chip addresses:"); |
cfb25cc4 | 722 | for (k = 0; k < ARRAY_SIZE(i2c_no_probes); k++) { |
e857a5bd | 723 | if (COMPARE_BUS(bus,k)) |
bb99ad6d BW |
724 | printf(" %02X", NO_PROBE_ADDR(k)); |
725 | } | |
4b9206ed | 726 | putc ('\n'); |
81a8824f WD |
727 | #endif |
728 | ||
54b99e51 | 729 | return (0 == found); |
81a8824f WD |
730 | } |
731 | ||
06afa388 MV |
732 | /** |
733 | * do_i2c_loop() - Handle the "i2c loop" command-line command | |
734 | * @cmdtp: Command data struct pointer | |
735 | * @flag: Command flag | |
736 | * @argc: Command-line argument count | |
737 | * @argv: Array of command-line arguments | |
738 | * | |
739 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
740 | * on error. | |
741 | * | |
81a8824f | 742 | * Syntax: |
0f89c54b | 743 | * i2c loop {i2c_chip} {addr}{.0, .1, .2} [{length}] [{delay}] |
81a8824f WD |
744 | * {length} - Number of bytes to read |
745 | * {delay} - A DECIMAL number and defaults to 1000 uSec | |
746 | */ | |
54841ab5 | 747 | static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
81a8824f WD |
748 | { |
749 | u_char chip; | |
750 | ulong alen; | |
751 | uint addr; | |
752 | uint length; | |
753 | u_char bytes[16]; | |
754 | int delay; | |
81a8824f | 755 | |
47e26b1b | 756 | if (argc < 3) |
4c12eeb8 | 757 | return CMD_RET_USAGE; |
81a8824f WD |
758 | |
759 | /* | |
760 | * Chip is always specified. | |
761 | */ | |
762 | chip = simple_strtoul(argv[1], NULL, 16); | |
763 | ||
764 | /* | |
765 | * Address is always specified. | |
766 | */ | |
767 | addr = simple_strtoul(argv[2], NULL, 16); | |
2c0dc990 | 768 | alen = get_alen(argv[2]); |
7a92e53c | 769 | if (alen > 3) |
4c12eeb8 | 770 | return CMD_RET_USAGE; |
81a8824f WD |
771 | |
772 | /* | |
773 | * Length is the number of objects, not number of bytes. | |
774 | */ | |
775 | length = 1; | |
776 | length = simple_strtoul(argv[3], NULL, 16); | |
e857a5bd | 777 | if (length > sizeof(bytes)) |
81a8824f | 778 | length = sizeof(bytes); |
81a8824f WD |
779 | |
780 | /* | |
781 | * The delay time (uSec) is optional. | |
782 | */ | |
783 | delay = 1000; | |
e857a5bd | 784 | if (argc > 3) |
81a8824f | 785 | delay = simple_strtoul(argv[4], NULL, 10); |
81a8824f WD |
786 | /* |
787 | * Run the loop... | |
788 | */ | |
e857a5bd TT |
789 | while (1) { |
790 | if (i2c_read(chip, addr, alen, bytes, length) != 0) | |
4b9206ed | 791 | puts ("Error reading the chip.\n"); |
81a8824f WD |
792 | udelay(delay); |
793 | } | |
794 | ||
795 | /* NOTREACHED */ | |
796 | return 0; | |
797 | } | |
798 | ||
81a8824f WD |
799 | /* |
800 | * The SDRAM command is separately configured because many | |
801 | * (most?) embedded boards don't use SDRAM DIMMs. | |
06afa388 MV |
802 | * |
803 | * FIXME: Document and probably move elsewhere! | |
81a8824f | 804 | */ |
c76fe474 | 805 | #if defined(CONFIG_CMD_SDRAM) |
632de067 LJ |
806 | static void print_ddr2_tcyc (u_char const b) |
807 | { | |
808 | printf ("%d.", (b >> 4) & 0x0F); | |
809 | switch (b & 0x0F) { | |
810 | case 0x0: | |
811 | case 0x1: | |
812 | case 0x2: | |
813 | case 0x3: | |
814 | case 0x4: | |
815 | case 0x5: | |
816 | case 0x6: | |
817 | case 0x7: | |
818 | case 0x8: | |
819 | case 0x9: | |
820 | printf ("%d ns\n", b & 0x0F); | |
821 | break; | |
822 | case 0xA: | |
823 | puts ("25 ns\n"); | |
824 | break; | |
825 | case 0xB: | |
826 | puts ("33 ns\n"); | |
827 | break; | |
828 | case 0xC: | |
829 | puts ("66 ns\n"); | |
830 | break; | |
831 | case 0xD: | |
832 | puts ("75 ns\n"); | |
833 | break; | |
834 | default: | |
835 | puts ("?? ns\n"); | |
836 | break; | |
837 | } | |
838 | } | |
839 | ||
840 | static void decode_bits (u_char const b, char const *str[], int const do_once) | |
841 | { | |
842 | u_char mask; | |
843 | ||
844 | for (mask = 0x80; mask != 0x00; mask >>= 1, ++str) { | |
845 | if (b & mask) { | |
846 | puts (*str); | |
847 | if (do_once) | |
848 | return; | |
849 | } | |
850 | } | |
851 | } | |
81a8824f WD |
852 | |
853 | /* | |
854 | * Syntax: | |
0f89c54b | 855 | * i2c sdram {i2c_chip} |
81a8824f | 856 | */ |
54841ab5 | 857 | static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
81a8824f | 858 | { |
632de067 LJ |
859 | enum { unknown, EDO, SDRAM, DDR2 } type; |
860 | ||
81a8824f WD |
861 | u_char chip; |
862 | u_char data[128]; | |
863 | u_char cksum; | |
864 | int j; | |
865 | ||
632de067 LJ |
866 | static const char *decode_CAS_DDR2[] = { |
867 | " TBD", " 6", " 5", " 4", " 3", " 2", " TBD", " TBD" | |
868 | }; | |
869 | ||
870 | static const char *decode_CAS_default[] = { | |
871 | " TBD", " 7", " 6", " 5", " 4", " 3", " 2", " 1" | |
872 | }; | |
873 | ||
874 | static const char *decode_CS_WE_default[] = { | |
875 | " TBD", " 6", " 5", " 4", " 3", " 2", " 1", " 0" | |
876 | }; | |
877 | ||
878 | static const char *decode_byte21_default[] = { | |
879 | " TBD (bit 7)\n", | |
880 | " Redundant row address\n", | |
881 | " Differential clock input\n", | |
882 | " Registerd DQMB inputs\n", | |
883 | " Buffered DQMB inputs\n", | |
884 | " On-card PLL\n", | |
885 | " Registered address/control lines\n", | |
886 | " Buffered address/control lines\n" | |
887 | }; | |
888 | ||
889 | static const char *decode_byte22_DDR2[] = { | |
890 | " TBD (bit 7)\n", | |
891 | " TBD (bit 6)\n", | |
892 | " TBD (bit 5)\n", | |
893 | " TBD (bit 4)\n", | |
894 | " TBD (bit 3)\n", | |
895 | " Supports partial array self refresh\n", | |
896 | " Supports 50 ohm ODT\n", | |
897 | " Supports weak driver\n" | |
898 | }; | |
899 | ||
900 | static const char *decode_row_density_DDR2[] = { | |
901 | "512 MiB", "256 MiB", "128 MiB", "16 GiB", | |
902 | "8 GiB", "4 GiB", "2 GiB", "1 GiB" | |
903 | }; | |
904 | ||
905 | static const char *decode_row_density_default[] = { | |
906 | "512 MiB", "256 MiB", "128 MiB", "64 MiB", | |
907 | "32 MiB", "16 MiB", "8 MiB", "4 MiB" | |
908 | }; | |
909 | ||
47e26b1b | 910 | if (argc < 2) |
4c12eeb8 | 911 | return CMD_RET_USAGE; |
47e26b1b | 912 | |
81a8824f WD |
913 | /* |
914 | * Chip is always specified. | |
632de067 LJ |
915 | */ |
916 | chip = simple_strtoul (argv[1], NULL, 16); | |
81a8824f | 917 | |
632de067 | 918 | if (i2c_read (chip, 0, 1, data, sizeof (data)) != 0) { |
4b9206ed | 919 | puts ("No SDRAM Serial Presence Detect found.\n"); |
81a8824f WD |
920 | return 1; |
921 | } | |
922 | ||
923 | cksum = 0; | |
924 | for (j = 0; j < 63; j++) { | |
925 | cksum += data[j]; | |
926 | } | |
e857a5bd | 927 | if (cksum != data[63]) { |
81a8824f | 928 | printf ("WARNING: Configuration data checksum failure:\n" |
632de067 | 929 | " is 0x%02x, calculated 0x%02x\n", data[63], cksum); |
81a8824f | 930 | } |
632de067 | 931 | printf ("SPD data revision %d.%d\n", |
81a8824f | 932 | (data[62] >> 4) & 0x0F, data[62] & 0x0F); |
632de067 LJ |
933 | printf ("Bytes used 0x%02X\n", data[0]); |
934 | printf ("Serial memory size 0x%02X\n", 1 << data[1]); | |
935 | ||
4b9206ed | 936 | puts ("Memory type "); |
632de067 | 937 | switch (data[2]) { |
0df6b844 LJ |
938 | case 2: |
939 | type = EDO; | |
940 | puts ("EDO\n"); | |
941 | break; | |
942 | case 4: | |
943 | type = SDRAM; | |
944 | puts ("SDRAM\n"); | |
945 | break; | |
946 | case 8: | |
947 | type = DDR2; | |
948 | puts ("DDR2\n"); | |
949 | break; | |
950 | default: | |
951 | type = unknown; | |
952 | puts ("unknown\n"); | |
953 | break; | |
81a8824f | 954 | } |
632de067 | 955 | |
4b9206ed | 956 | puts ("Row address bits "); |
e857a5bd | 957 | if ((data[3] & 0x00F0) == 0) |
632de067 | 958 | printf ("%d\n", data[3] & 0x0F); |
e857a5bd | 959 | else |
632de067 LJ |
960 | printf ("%d/%d\n", data[3] & 0x0F, (data[3] >> 4) & 0x0F); |
961 | ||
4b9206ed | 962 | puts ("Column address bits "); |
e857a5bd | 963 | if ((data[4] & 0x00F0) == 0) |
632de067 | 964 | printf ("%d\n", data[4] & 0x0F); |
e857a5bd | 965 | else |
632de067 | 966 | printf ("%d/%d\n", data[4] & 0x0F, (data[4] >> 4) & 0x0F); |
0df6b844 LJ |
967 | |
968 | switch (type) { | |
969 | case DDR2: | |
632de067 LJ |
970 | printf ("Number of ranks %d\n", |
971 | (data[5] & 0x07) + 1); | |
0df6b844 LJ |
972 | break; |
973 | default: | |
632de067 | 974 | printf ("Module rows %d\n", data[5]); |
0df6b844 LJ |
975 | break; |
976 | } | |
977 | ||
978 | switch (type) { | |
979 | case DDR2: | |
632de067 | 980 | printf ("Module data width %d bits\n", data[6]); |
0df6b844 LJ |
981 | break; |
982 | default: | |
632de067 LJ |
983 | printf ("Module data width %d bits\n", |
984 | (data[7] << 8) | data[6]); | |
0df6b844 LJ |
985 | break; |
986 | } | |
987 | ||
4b9206ed | 988 | puts ("Interface signal levels "); |
81a8824f | 989 | switch(data[8]) { |
0df6b844 | 990 | case 0: puts ("TTL 5.0 V\n"); break; |
4b9206ed | 991 | case 1: puts ("LVTTL\n"); break; |
0df6b844 LJ |
992 | case 2: puts ("HSTL 1.5 V\n"); break; |
993 | case 3: puts ("SSTL 3.3 V\n"); break; | |
994 | case 4: puts ("SSTL 2.5 V\n"); break; | |
995 | case 5: puts ("SSTL 1.8 V\n"); break; | |
4b9206ed | 996 | default: puts ("unknown\n"); break; |
81a8824f | 997 | } |
0df6b844 LJ |
998 | |
999 | switch (type) { | |
1000 | case DDR2: | |
632de067 LJ |
1001 | printf ("SDRAM cycle time "); |
1002 | print_ddr2_tcyc (data[9]); | |
0df6b844 LJ |
1003 | break; |
1004 | default: | |
632de067 LJ |
1005 | printf ("SDRAM cycle time %d.%d ns\n", |
1006 | (data[9] >> 4) & 0x0F, data[9] & 0x0F); | |
0df6b844 LJ |
1007 | break; |
1008 | } | |
1009 | ||
1010 | switch (type) { | |
1011 | case DDR2: | |
632de067 LJ |
1012 | printf ("SDRAM access time 0.%d%d ns\n", |
1013 | (data[10] >> 4) & 0x0F, data[10] & 0x0F); | |
0df6b844 LJ |
1014 | break; |
1015 | default: | |
632de067 LJ |
1016 | printf ("SDRAM access time %d.%d ns\n", |
1017 | (data[10] >> 4) & 0x0F, data[10] & 0x0F); | |
0df6b844 LJ |
1018 | break; |
1019 | } | |
1020 | ||
4b9206ed | 1021 | puts ("EDC configuration "); |
632de067 | 1022 | switch (data[11]) { |
4b9206ed WD |
1023 | case 0: puts ("None\n"); break; |
1024 | case 1: puts ("Parity\n"); break; | |
1025 | case 2: puts ("ECC\n"); break; | |
1026 | default: puts ("unknown\n"); break; | |
81a8824f | 1027 | } |
632de067 | 1028 | |
e857a5bd | 1029 | if ((data[12] & 0x80) == 0) |
4b9206ed | 1030 | puts ("No self refresh, rate "); |
e857a5bd | 1031 | else |
4b9206ed | 1032 | puts ("Self refresh, rate "); |
632de067 | 1033 | |
81a8824f | 1034 | switch(data[12] & 0x7F) { |
632de067 LJ |
1035 | case 0: puts ("15.625 us\n"); break; |
1036 | case 1: puts ("3.9 us\n"); break; | |
1037 | case 2: puts ("7.8 us\n"); break; | |
1038 | case 3: puts ("31.3 us\n"); break; | |
1039 | case 4: puts ("62.5 us\n"); break; | |
1040 | case 5: puts ("125 us\n"); break; | |
4b9206ed | 1041 | default: puts ("unknown\n"); break; |
81a8824f | 1042 | } |
0df6b844 LJ |
1043 | |
1044 | switch (type) { | |
1045 | case DDR2: | |
632de067 | 1046 | printf ("SDRAM width (primary) %d\n", data[13]); |
0df6b844 LJ |
1047 | break; |
1048 | default: | |
632de067 | 1049 | printf ("SDRAM width (primary) %d\n", data[13] & 0x7F); |
0df6b844 | 1050 | if ((data[13] & 0x80) != 0) { |
632de067 LJ |
1051 | printf (" (second bank) %d\n", |
1052 | 2 * (data[13] & 0x7F)); | |
0df6b844 LJ |
1053 | } |
1054 | break; | |
1055 | } | |
1056 | ||
1057 | switch (type) { | |
1058 | case DDR2: | |
1059 | if (data[14] != 0) | |
632de067 | 1060 | printf ("EDC width %d\n", data[14]); |
0df6b844 LJ |
1061 | break; |
1062 | default: | |
1063 | if (data[14] != 0) { | |
632de067 LJ |
1064 | printf ("EDC width %d\n", |
1065 | data[14] & 0x7F); | |
0df6b844 LJ |
1066 | |
1067 | if ((data[14] & 0x80) != 0) { | |
632de067 LJ |
1068 | printf (" (second bank) %d\n", |
1069 | 2 * (data[14] & 0x7F)); | |
0df6b844 LJ |
1070 | } |
1071 | } | |
1072 | break; | |
81a8824f | 1073 | } |
0df6b844 | 1074 | |
632de067 LJ |
1075 | if (DDR2 != type) { |
1076 | printf ("Min clock delay, back-to-back random column addresses " | |
1077 | "%d\n", data[15]); | |
0df6b844 LJ |
1078 | } |
1079 | ||
4b9206ed WD |
1080 | puts ("Burst length(s) "); |
1081 | if (data[16] & 0x80) puts (" Page"); | |
1082 | if (data[16] & 0x08) puts (" 8"); | |
1083 | if (data[16] & 0x04) puts (" 4"); | |
1084 | if (data[16] & 0x02) puts (" 2"); | |
1085 | if (data[16] & 0x01) puts (" 1"); | |
1086 | putc ('\n'); | |
632de067 | 1087 | printf ("Number of banks %d\n", data[17]); |
0df6b844 LJ |
1088 | |
1089 | switch (type) { | |
1090 | case DDR2: | |
1091 | puts ("CAS latency(s) "); | |
632de067 | 1092 | decode_bits (data[18], decode_CAS_DDR2, 0); |
0df6b844 LJ |
1093 | putc ('\n'); |
1094 | break; | |
1095 | default: | |
1096 | puts ("CAS latency(s) "); | |
632de067 | 1097 | decode_bits (data[18], decode_CAS_default, 0); |
0df6b844 LJ |
1098 | putc ('\n'); |
1099 | break; | |
1100 | } | |
1101 | ||
1102 | if (DDR2 != type) { | |
1103 | puts ("CS latency(s) "); | |
632de067 | 1104 | decode_bits (data[19], decode_CS_WE_default, 0); |
0df6b844 LJ |
1105 | putc ('\n'); |
1106 | } | |
1107 | ||
1108 | if (DDR2 != type) { | |
1109 | puts ("WE latency(s) "); | |
632de067 | 1110 | decode_bits (data[20], decode_CS_WE_default, 0); |
0df6b844 LJ |
1111 | putc ('\n'); |
1112 | } | |
1113 | ||
1114 | switch (type) { | |
1115 | case DDR2: | |
1116 | puts ("Module attributes:\n"); | |
1117 | if (data[21] & 0x80) | |
1118 | puts (" TBD (bit 7)\n"); | |
1119 | if (data[21] & 0x40) | |
1120 | puts (" Analysis probe installed\n"); | |
1121 | if (data[21] & 0x20) | |
1122 | puts (" TBD (bit 5)\n"); | |
1123 | if (data[21] & 0x10) | |
1124 | puts (" FET switch external enable\n"); | |
632de067 | 1125 | printf (" %d PLLs on DIMM\n", (data[21] >> 2) & 0x03); |
0df6b844 | 1126 | if (data[20] & 0x11) { |
632de067 LJ |
1127 | printf (" %d active registers on DIMM\n", |
1128 | (data[21] & 0x03) + 1); | |
0df6b844 LJ |
1129 | } |
1130 | break; | |
1131 | default: | |
1132 | puts ("Module attributes:\n"); | |
1133 | if (!data[21]) | |
1134 | puts (" (none)\n"); | |
632de067 LJ |
1135 | else |
1136 | decode_bits (data[21], decode_byte21_default, 0); | |
0df6b844 LJ |
1137 | break; |
1138 | } | |
1139 | ||
1140 | switch (type) { | |
1141 | case DDR2: | |
632de067 | 1142 | decode_bits (data[22], decode_byte22_DDR2, 0); |
0df6b844 LJ |
1143 | break; |
1144 | default: | |
1145 | puts ("Device attributes:\n"); | |
1146 | if (data[22] & 0x80) puts (" TBD (bit 7)\n"); | |
1147 | if (data[22] & 0x40) puts (" TBD (bit 6)\n"); | |
1148 | if (data[22] & 0x20) puts (" Upper Vcc tolerance 5%\n"); | |
1149 | else puts (" Upper Vcc tolerance 10%\n"); | |
1150 | if (data[22] & 0x10) puts (" Lower Vcc tolerance 5%\n"); | |
1151 | else puts (" Lower Vcc tolerance 10%\n"); | |
1152 | if (data[22] & 0x08) puts (" Supports write1/read burst\n"); | |
1153 | if (data[22] & 0x04) puts (" Supports precharge all\n"); | |
1154 | if (data[22] & 0x02) puts (" Supports auto precharge\n"); | |
1155 | if (data[22] & 0x01) puts (" Supports early RAS# precharge\n"); | |
1156 | break; | |
1157 | } | |
1158 | ||
1159 | switch (type) { | |
1160 | case DDR2: | |
632de067 LJ |
1161 | printf ("SDRAM cycle time (2nd highest CAS latency) "); |
1162 | print_ddr2_tcyc (data[23]); | |
0df6b844 LJ |
1163 | break; |
1164 | default: | |
632de067 LJ |
1165 | printf ("SDRAM cycle time (2nd highest CAS latency) %d." |
1166 | "%d ns\n", (data[23] >> 4) & 0x0F, data[23] & 0x0F); | |
0df6b844 LJ |
1167 | break; |
1168 | } | |
1169 | ||
1170 | switch (type) { | |
1171 | case DDR2: | |
632de067 LJ |
1172 | printf ("SDRAM access from clock (2nd highest CAS latency) 0." |
1173 | "%d%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F); | |
0df6b844 LJ |
1174 | break; |
1175 | default: | |
632de067 LJ |
1176 | printf ("SDRAM access from clock (2nd highest CAS latency) %d." |
1177 | "%d ns\n", (data[24] >> 4) & 0x0F, data[24] & 0x0F); | |
0df6b844 LJ |
1178 | break; |
1179 | } | |
1180 | ||
1181 | switch (type) { | |
1182 | case DDR2: | |
632de067 LJ |
1183 | printf ("SDRAM cycle time (3rd highest CAS latency) "); |
1184 | print_ddr2_tcyc (data[25]); | |
0df6b844 LJ |
1185 | break; |
1186 | default: | |
632de067 LJ |
1187 | printf ("SDRAM cycle time (3rd highest CAS latency) %d." |
1188 | "%d ns\n", (data[25] >> 4) & 0x0F, data[25] & 0x0F); | |
0df6b844 LJ |
1189 | break; |
1190 | } | |
1191 | ||
1192 | switch (type) { | |
1193 | case DDR2: | |
632de067 LJ |
1194 | printf ("SDRAM access from clock (3rd highest CAS latency) 0." |
1195 | "%d%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F); | |
0df6b844 LJ |
1196 | break; |
1197 | default: | |
632de067 LJ |
1198 | printf ("SDRAM access from clock (3rd highest CAS latency) %d." |
1199 | "%d ns\n", (data[26] >> 4) & 0x0F, data[26] & 0x0F); | |
0df6b844 LJ |
1200 | break; |
1201 | } | |
1202 | ||
1203 | switch (type) { | |
1204 | case DDR2: | |
632de067 LJ |
1205 | printf ("Minimum row precharge %d.%02d ns\n", |
1206 | (data[27] >> 2) & 0x3F, 25 * (data[27] & 0x03)); | |
0df6b844 LJ |
1207 | break; |
1208 | default: | |
632de067 | 1209 | printf ("Minimum row precharge %d ns\n", data[27]); |
0df6b844 LJ |
1210 | break; |
1211 | } | |
1212 | ||
1213 | switch (type) { | |
1214 | case DDR2: | |
632de067 LJ |
1215 | printf ("Row active to row active min %d.%02d ns\n", |
1216 | (data[28] >> 2) & 0x3F, 25 * (data[28] & 0x03)); | |
0df6b844 LJ |
1217 | break; |
1218 | default: | |
632de067 | 1219 | printf ("Row active to row active min %d ns\n", data[28]); |
0df6b844 LJ |
1220 | break; |
1221 | } | |
1222 | ||
1223 | switch (type) { | |
1224 | case DDR2: | |
632de067 LJ |
1225 | printf ("RAS to CAS delay min %d.%02d ns\n", |
1226 | (data[29] >> 2) & 0x3F, 25 * (data[29] & 0x03)); | |
0df6b844 LJ |
1227 | break; |
1228 | default: | |
632de067 | 1229 | printf ("RAS to CAS delay min %d ns\n", data[29]); |
0df6b844 LJ |
1230 | break; |
1231 | } | |
1232 | ||
632de067 | 1233 | printf ("Minimum RAS pulse width %d ns\n", data[30]); |
0df6b844 LJ |
1234 | |
1235 | switch (type) { | |
1236 | case DDR2: | |
632de067 LJ |
1237 | puts ("Density of each row "); |
1238 | decode_bits (data[31], decode_row_density_DDR2, 1); | |
1239 | putc ('\n'); | |
0df6b844 LJ |
1240 | break; |
1241 | default: | |
632de067 LJ |
1242 | puts ("Density of each row "); |
1243 | decode_bits (data[31], decode_row_density_default, 1); | |
1244 | putc ('\n'); | |
0df6b844 LJ |
1245 | break; |
1246 | } | |
1247 | ||
1248 | switch (type) { | |
1249 | case DDR2: | |
632de067 | 1250 | puts ("Command and Address setup "); |
0df6b844 | 1251 | if (data[32] >= 0xA0) { |
632de067 LJ |
1252 | printf ("1.%d%d ns\n", |
1253 | ((data[32] >> 4) & 0x0F) - 10, data[32] & 0x0F); | |
0df6b844 | 1254 | } else { |
632de067 LJ |
1255 | printf ("0.%d%d ns\n", |
1256 | ((data[32] >> 4) & 0x0F), data[32] & 0x0F); | |
0df6b844 LJ |
1257 | } |
1258 | break; | |
1259 | default: | |
632de067 LJ |
1260 | printf ("Command and Address setup %c%d.%d ns\n", |
1261 | (data[32] & 0x80) ? '-' : '+', | |
1262 | (data[32] >> 4) & 0x07, data[32] & 0x0F); | |
0df6b844 LJ |
1263 | break; |
1264 | } | |
1265 | ||
1266 | switch (type) { | |
1267 | case DDR2: | |
632de067 | 1268 | puts ("Command and Address hold "); |
0df6b844 | 1269 | if (data[33] >= 0xA0) { |
632de067 LJ |
1270 | printf ("1.%d%d ns\n", |
1271 | ((data[33] >> 4) & 0x0F) - 10, data[33] & 0x0F); | |
0df6b844 | 1272 | } else { |
632de067 LJ |
1273 | printf ("0.%d%d ns\n", |
1274 | ((data[33] >> 4) & 0x0F), data[33] & 0x0F); | |
0df6b844 LJ |
1275 | } |
1276 | break; | |
1277 | default: | |
632de067 LJ |
1278 | printf ("Command and Address hold %c%d.%d ns\n", |
1279 | (data[33] & 0x80) ? '-' : '+', | |
1280 | (data[33] >> 4) & 0x07, data[33] & 0x0F); | |
0df6b844 LJ |
1281 | break; |
1282 | } | |
1283 | ||
1284 | switch (type) { | |
1285 | case DDR2: | |
632de067 LJ |
1286 | printf ("Data signal input setup 0.%d%d ns\n", |
1287 | (data[34] >> 4) & 0x0F, data[34] & 0x0F); | |
0df6b844 LJ |
1288 | break; |
1289 | default: | |
632de067 LJ |
1290 | printf ("Data signal input setup %c%d.%d ns\n", |
1291 | (data[34] & 0x80) ? '-' : '+', | |
1292 | (data[34] >> 4) & 0x07, data[34] & 0x0F); | |
0df6b844 LJ |
1293 | break; |
1294 | } | |
1295 | ||
1296 | switch (type) { | |
1297 | case DDR2: | |
632de067 LJ |
1298 | printf ("Data signal input hold 0.%d%d ns\n", |
1299 | (data[35] >> 4) & 0x0F, data[35] & 0x0F); | |
0df6b844 LJ |
1300 | break; |
1301 | default: | |
632de067 LJ |
1302 | printf ("Data signal input hold %c%d.%d ns\n", |
1303 | (data[35] & 0x80) ? '-' : '+', | |
1304 | (data[35] >> 4) & 0x07, data[35] & 0x0F); | |
0df6b844 LJ |
1305 | break; |
1306 | } | |
1307 | ||
4b9206ed | 1308 | puts ("Manufacturer's JEDEC ID "); |
e857a5bd | 1309 | for (j = 64; j <= 71; j++) |
632de067 | 1310 | printf ("%02X ", data[j]); |
4b9206ed | 1311 | putc ('\n'); |
632de067 | 1312 | printf ("Manufacturing Location %02X\n", data[72]); |
4b9206ed | 1313 | puts ("Manufacturer's Part Number "); |
e857a5bd | 1314 | for (j = 73; j <= 90; j++) |
632de067 | 1315 | printf ("%02X ", data[j]); |
4b9206ed | 1316 | putc ('\n'); |
632de067 LJ |
1317 | printf ("Revision Code %02X %02X\n", data[91], data[92]); |
1318 | printf ("Manufacturing Date %02X %02X\n", data[93], data[94]); | |
4b9206ed | 1319 | puts ("Assembly Serial Number "); |
e857a5bd | 1320 | for (j = 95; j <= 98; j++) |
632de067 | 1321 | printf ("%02X ", data[j]); |
4b9206ed | 1322 | putc ('\n'); |
81a8824f | 1323 | |
0df6b844 | 1324 | if (DDR2 != type) { |
632de067 LJ |
1325 | printf ("Speed rating PC%d\n", |
1326 | data[126] == 0x66 ? 66 : data[126]); | |
0df6b844 | 1327 | } |
81a8824f WD |
1328 | return 0; |
1329 | } | |
90253178 | 1330 | #endif |
81a8824f | 1331 | |
735987c5 TWHT |
1332 | /* |
1333 | * Syntax: | |
1334 | * i2c edid {i2c_chip} | |
1335 | */ | |
1336 | #if defined(CONFIG_I2C_EDID) | |
1337 | int do_edid(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) | |
1338 | { | |
1339 | u_char chip; | |
1340 | struct edid1_info edid; | |
1341 | ||
1342 | if (argc < 2) { | |
1343 | cmd_usage(cmdtp); | |
1344 | return 1; | |
1345 | } | |
1346 | ||
1347 | chip = simple_strtoul(argv[1], NULL, 16); | |
1348 | if (i2c_read(chip, 0, 1, (uchar *)&edid, sizeof(edid)) != 0) { | |
1349 | puts("Error reading EDID content.\n"); | |
1350 | return 1; | |
1351 | } | |
1352 | ||
1353 | if (edid_check_info(&edid)) { | |
1354 | puts("Content isn't valid EDID.\n"); | |
1355 | return 1; | |
1356 | } | |
1357 | ||
1358 | edid_print_info(&edid); | |
1359 | return 0; | |
1360 | ||
1361 | } | |
1362 | #endif /* CONFIG_I2C_EDID */ | |
1363 | ||
06afa388 | 1364 | /** |
3f4978c7 | 1365 | * do_i2c_show_bus() - Handle the "i2c bus" command-line command |
06afa388 MV |
1366 | * @cmdtp: Command data struct pointer |
1367 | * @flag: Command flag | |
1368 | * @argc: Command-line argument count | |
1369 | * @argv: Array of command-line arguments | |
1370 | * | |
1371 | * Returns zero always. | |
1372 | */ | |
3f4978c7 HS |
1373 | #if defined(CONFIG_SYS_I2C) |
1374 | int do_i2c_show_bus(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
67b23a32 | 1375 | { |
3f4978c7 HS |
1376 | int i; |
1377 | #ifndef CONFIG_SYS_I2C_DIRECT_BUS | |
1378 | int j; | |
1379 | #endif | |
67b23a32 HS |
1380 | |
1381 | if (argc == 1) { | |
1382 | /* show all busses */ | |
3f4978c7 HS |
1383 | for (i = 0; i < CONFIG_SYS_NUM_I2C_BUSES; i++) { |
1384 | printf("Bus %d:\t%s", i, I2C_ADAP_NR(i)->name); | |
1385 | #ifndef CONFIG_SYS_I2C_DIRECT_BUS | |
1386 | for (j = 0; j < CONFIG_SYS_I2C_MAX_HOPS; j++) { | |
1387 | if (i2c_bus[i].next_hop[j].chip == 0) | |
1388 | break; | |
1389 | printf("->%s@0x%2x:%d", | |
1390 | i2c_bus[i].next_hop[j].mux.name, | |
1391 | i2c_bus[i].next_hop[j].chip, | |
1392 | i2c_bus[i].next_hop[j].channel); | |
67b23a32 | 1393 | } |
3f4978c7 HS |
1394 | #endif |
1395 | printf("\n"); | |
67b23a32 HS |
1396 | } |
1397 | } else { | |
3f4978c7 HS |
1398 | /* show specific bus */ |
1399 | i = simple_strtoul(argv[1], NULL, 10); | |
1400 | if (i >= CONFIG_SYS_NUM_I2C_BUSES) { | |
1401 | printf("Invalid bus %d\n", i); | |
1402 | return -1; | |
1403 | } | |
1404 | printf("Bus %d:\t%s", i, I2C_ADAP_NR(i)->name); | |
1405 | #ifndef CONFIG_SYS_I2C_DIRECT_BUS | |
1406 | for (j = 0; j < CONFIG_SYS_I2C_MAX_HOPS; j++) { | |
1407 | if (i2c_bus[i].next_hop[j].chip == 0) | |
1408 | break; | |
1409 | printf("->%s@0x%2x:%d", | |
1410 | i2c_bus[i].next_hop[j].mux.name, | |
1411 | i2c_bus[i].next_hop[j].chip, | |
1412 | i2c_bus[i].next_hop[j].channel); | |
1413 | } | |
1414 | #endif | |
1415 | printf("\n"); | |
67b23a32 | 1416 | } |
3f4978c7 HS |
1417 | |
1418 | return 0; | |
67b23a32 | 1419 | } |
3f4978c7 | 1420 | #endif |
67b23a32 | 1421 | |
06afa388 MV |
1422 | /** |
1423 | * do_i2c_bus_num() - Handle the "i2c dev" command-line command | |
1424 | * @cmdtp: Command data struct pointer | |
1425 | * @flag: Command flag | |
1426 | * @argc: Command-line argument count | |
1427 | * @argv: Array of command-line arguments | |
1428 | * | |
1429 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1430 | * on error. | |
1431 | */ | |
3f4978c7 HS |
1432 | #if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS) |
1433 | int do_i2c_bus_num(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
bb99ad6d | 1434 | { |
3f4978c7 HS |
1435 | int ret = 0; |
1436 | unsigned int bus_no; | |
bb99ad6d | 1437 | |
e857a5bd TT |
1438 | if (argc == 1) |
1439 | /* querying current setting */ | |
bb99ad6d | 1440 | printf("Current bus is %d\n", i2c_get_bus_num()); |
e857a5bd | 1441 | else { |
3f4978c7 | 1442 | bus_no = simple_strtoul(argv[1], NULL, 10); |
880a4127 | 1443 | #if defined(CONFIG_SYS_I2C) |
3f4978c7 HS |
1444 | if (bus_no >= CONFIG_SYS_NUM_I2C_BUSES) { |
1445 | printf("Invalid bus %d\n", bus_no); | |
1446 | return -1; | |
1447 | } | |
880a4127 | 1448 | #endif |
3f4978c7 HS |
1449 | printf("Setting bus to %d\n", bus_no); |
1450 | ret = i2c_set_bus_num(bus_no); | |
e857a5bd | 1451 | if (ret) |
bb99ad6d | 1452 | printf("Failure changing bus number (%d)\n", ret); |
bb99ad6d BW |
1453 | } |
1454 | return ret; | |
1455 | } | |
3f4978c7 | 1456 | #endif /* defined(CONFIG_SYS_I2C) */ |
bb99ad6d | 1457 | |
06afa388 MV |
1458 | /** |
1459 | * do_i2c_bus_speed() - Handle the "i2c speed" command-line command | |
1460 | * @cmdtp: Command data struct pointer | |
1461 | * @flag: Command flag | |
1462 | * @argc: Command-line argument count | |
1463 | * @argv: Array of command-line arguments | |
1464 | * | |
1465 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1466 | * on error. | |
1467 | */ | |
54841ab5 | 1468 | static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bb99ad6d BW |
1469 | { |
1470 | int speed, ret=0; | |
1471 | ||
e857a5bd TT |
1472 | if (argc == 1) |
1473 | /* querying current speed */ | |
bb99ad6d | 1474 | printf("Current bus speed=%d\n", i2c_get_bus_speed()); |
e857a5bd | 1475 | else { |
bb99ad6d BW |
1476 | speed = simple_strtoul(argv[1], NULL, 10); |
1477 | printf("Setting bus speed to %d Hz\n", speed); | |
1478 | ret = i2c_set_bus_speed(speed); | |
e857a5bd | 1479 | if (ret) |
bb99ad6d | 1480 | printf("Failure changing bus speed (%d)\n", ret); |
bb99ad6d BW |
1481 | } |
1482 | return ret; | |
1483 | } | |
1484 | ||
06afa388 MV |
1485 | /** |
1486 | * do_i2c_mm() - Handle the "i2c mm" command-line command | |
1487 | * @cmdtp: Command data struct pointer | |
1488 | * @flag: Command flag | |
1489 | * @argc: Command-line argument count | |
1490 | * @argv: Array of command-line arguments | |
1491 | * | |
1492 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1493 | * on error. | |
1494 | */ | |
54841ab5 | 1495 | static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bb99ad6d | 1496 | { |
bfc3b77e FM |
1497 | return mod_i2c_mem (cmdtp, 1, flag, argc, argv); |
1498 | } | |
1499 | ||
06afa388 MV |
1500 | /** |
1501 | * do_i2c_nm() - Handle the "i2c nm" command-line command | |
1502 | * @cmdtp: Command data struct pointer | |
1503 | * @flag: Command flag | |
1504 | * @argc: Command-line argument count | |
1505 | * @argv: Array of command-line arguments | |
1506 | * | |
1507 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1508 | * on error. | |
1509 | */ | |
54841ab5 | 1510 | static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bfc3b77e FM |
1511 | { |
1512 | return mod_i2c_mem (cmdtp, 0, flag, argc, argv); | |
1513 | } | |
e96ad5d3 | 1514 | |
06afa388 MV |
1515 | /** |
1516 | * do_i2c_reset() - Handle the "i2c reset" command-line command | |
1517 | * @cmdtp: Command data struct pointer | |
1518 | * @flag: Command flag | |
1519 | * @argc: Command-line argument count | |
1520 | * @argv: Array of command-line arguments | |
1521 | * | |
1522 | * Returns zero always. | |
1523 | */ | |
54841ab5 | 1524 | static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bfc3b77e | 1525 | { |
3f4978c7 HS |
1526 | #if defined(CONFIG_SYS_I2C) |
1527 | i2c_init(I2C_ADAP->speed, I2C_ADAP->slaveaddr); | |
1528 | #else | |
bfc3b77e | 1529 | i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
3f4978c7 | 1530 | #endif |
bfc3b77e FM |
1531 | return 0; |
1532 | } | |
1533 | ||
1534 | static cmd_tbl_t cmd_i2c_sub[] = { | |
3f4978c7 HS |
1535 | #if defined(CONFIG_SYS_I2C) |
1536 | U_BOOT_CMD_MKENT(bus, 1, 1, do_i2c_show_bus, "", ""), | |
9a2accb4 | 1537 | #endif |
bfc3b77e | 1538 | U_BOOT_CMD_MKENT(crc32, 3, 1, do_i2c_crc, "", ""), |
3f4978c7 HS |
1539 | #if defined(CONFIG_SYS_I2C) || \ |
1540 | defined(CONFIG_I2C_MULTI_BUS) | |
bfc3b77e | 1541 | U_BOOT_CMD_MKENT(dev, 1, 1, do_i2c_bus_num, "", ""), |
bb99ad6d | 1542 | #endif /* CONFIG_I2C_MULTI_BUS */ |
735987c5 TWHT |
1543 | #if defined(CONFIG_I2C_EDID) |
1544 | U_BOOT_CMD_MKENT(edid, 1, 1, do_edid, "", ""), | |
1545 | #endif /* CONFIG_I2C_EDID */ | |
bfc3b77e FM |
1546 | U_BOOT_CMD_MKENT(loop, 3, 1, do_i2c_loop, "", ""), |
1547 | U_BOOT_CMD_MKENT(md, 3, 1, do_i2c_md, "", ""), | |
1548 | U_BOOT_CMD_MKENT(mm, 2, 1, do_i2c_mm, "", ""), | |
1549 | U_BOOT_CMD_MKENT(mw, 3, 1, do_i2c_mw, "", ""), | |
1550 | U_BOOT_CMD_MKENT(nm, 2, 1, do_i2c_nm, "", ""), | |
1551 | U_BOOT_CMD_MKENT(probe, 0, 1, do_i2c_probe, "", ""), | |
652e5354 | 1552 | U_BOOT_CMD_MKENT(read, 5, 1, do_i2c_read, "", ""), |
ff5d2dce | 1553 | U_BOOT_CMD_MKENT(write, 5, 0, do_i2c_write, "", ""), |
bfc3b77e | 1554 | U_BOOT_CMD_MKENT(reset, 0, 1, do_i2c_reset, "", ""), |
c76fe474 | 1555 | #if defined(CONFIG_CMD_SDRAM) |
bfc3b77e | 1556 | U_BOOT_CMD_MKENT(sdram, 1, 1, do_sdram, "", ""), |
90253178 | 1557 | #endif |
bfc3b77e FM |
1558 | U_BOOT_CMD_MKENT(speed, 1, 1, do_i2c_bus_speed, "", ""), |
1559 | }; | |
1560 | ||
2e5167cc | 1561 | #ifdef CONFIG_NEEDS_MANUAL_RELOC |
f1d2b313 HS |
1562 | void i2c_reloc(void) { |
1563 | fixup_cmdtable(cmd_i2c_sub, ARRAY_SIZE(cmd_i2c_sub)); | |
1564 | } | |
1565 | #endif | |
1566 | ||
06afa388 MV |
1567 | /** |
1568 | * do_i2c() - Handle the "i2c" command-line command | |
1569 | * @cmdtp: Command data struct pointer | |
1570 | * @flag: Command flag | |
1571 | * @argc: Command-line argument count | |
1572 | * @argv: Array of command-line arguments | |
1573 | * | |
1574 | * Returns zero on success, CMD_RET_USAGE in case of misuse and negative | |
1575 | * on error. | |
1576 | */ | |
54841ab5 | 1577 | static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
bfc3b77e FM |
1578 | { |
1579 | cmd_tbl_t *c; | |
1580 | ||
4444b221 | 1581 | if (argc < 2) |
4c12eeb8 | 1582 | return CMD_RET_USAGE; |
4444b221 | 1583 | |
bfc3b77e FM |
1584 | /* Strip off leading 'i2c' command argument */ |
1585 | argc--; | |
1586 | argv++; | |
1587 | ||
1588 | c = find_cmd_tbl(argv[0], &cmd_i2c_sub[0], ARRAY_SIZE(cmd_i2c_sub)); | |
1589 | ||
47e26b1b | 1590 | if (c) |
4c12eeb8 | 1591 | return c->cmd(cmdtp, flag, argc, argv); |
47e26b1b | 1592 | else |
4c12eeb8 | 1593 | return CMD_RET_USAGE; |
bb99ad6d | 1594 | } |
8bde7f77 WD |
1595 | |
1596 | /***************************************************/ | |
088f1b19 KP |
1597 | #ifdef CONFIG_SYS_LONGHELP |
1598 | static char i2c_help_text[] = | |
3f4978c7 HS |
1599 | #if defined(CONFIG_SYS_I2C) |
1600 | "bus [muxtype:muxaddr:muxchannel] - show I2C bus info\n" | |
9a2accb4 | 1601 | #endif |
fb0070e9 | 1602 | "crc32 chip address[.0, .1, .2] count - compute CRC32 checksum\n" |
3f4978c7 HS |
1603 | #if defined(CONFIG_SYS_I2C) || \ |
1604 | defined(CONFIG_I2C_MULTI_BUS) | |
9bc2e4ee | 1605 | "i2c dev [dev] - show or set current I2C bus\n" |
d9fc7032 | 1606 | #endif /* CONFIG_I2C_MULTI_BUS */ |
735987c5 TWHT |
1607 | #if defined(CONFIG_I2C_EDID) |
1608 | "i2c edid chip - print EDID configuration information\n" | |
1609 | #endif /* CONFIG_I2C_EDID */ | |
fb0070e9 | 1610 | "i2c loop chip address[.0, .1, .2] [# of objects] - looping read of device\n" |
d9fc7032 MF |
1611 | "i2c md chip address[.0, .1, .2] [# of objects] - read from I2C device\n" |
1612 | "i2c mm chip address[.0, .1, .2] - write to I2C device (auto-incrementing)\n" | |
1613 | "i2c mw chip address[.0, .1, .2] value [count] - write to I2C device (fill)\n" | |
1614 | "i2c nm chip address[.0, .1, .2] - write to I2C device (constant address)\n" | |
54b99e51 | 1615 | "i2c probe [address] - test for and show device(s) on the I2C bus\n" |
652e5354 | 1616 | "i2c read chip address[.0, .1, .2] length memaddress - read to memory \n" |
ff5d2dce | 1617 | "i2c write memaddress chip address[.0, .1, .2] length - write memory to i2c\n" |
e43a27c4 | 1618 | "i2c reset - re-init the I2C Controller\n" |
c76fe474 | 1619 | #if defined(CONFIG_CMD_SDRAM) |
fb0070e9 | 1620 | "i2c sdram chip - print SDRAM configuration information\n" |
90253178 | 1621 | #endif |
088f1b19 KP |
1622 | "i2c speed [speed] - show or set I2C bus speed"; |
1623 | #endif | |
1624 | ||
1625 | U_BOOT_CMD( | |
1626 | i2c, 6, 1, do_i2c, | |
1627 | "I2C sub-system", | |
1628 | i2c_help_text | |
d9fc7032 | 1629 | ); |