blob: 342021df97e79195aacaba4c756bb3737dcd98be [file] [log] [blame]
Haavard Skinnemoenb6368462008-05-16 11:10:34 +02001/*
2 * Command for accessing SPI flash.
3 *
4 * Copyright (C) 2008 Atmel Corporation
Jagannadha Sutradharudu Teki0c88a842013-10-10 22:32:55 +05305 *
6 * SPDX-License-Identifier: GPL-2.0+
Haavard Skinnemoenb6368462008-05-16 11:10:34 +02007 */
Mike Frysinger4166ee52009-10-09 17:12:44 -04008
Haavard Skinnemoenb6368462008-05-16 11:10:34 +02009#include <common.h>
Mingkai Hu381c6e22013-04-07 22:13:32 +000010#include <div64.h>
Simon Glassfbb09912014-10-13 23:42:07 -060011#include <dm.h>
Simon Glass8d1af942011-08-22 16:03:46 -070012#include <malloc.h>
Joe Hershberger0eb25b62015-03-22 17:08:59 -050013#include <mapmem.h>
Simon Glassff0960f2014-10-13 23:42:04 -060014#include <spi.h>
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020015#include <spi_flash.h>
16
17#include <asm/io.h>
Simon Glassfbb09912014-10-13 23:42:07 -060018#include <dm/device-internal.h>
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020019
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020020static struct spi_flash *flash;
21
Richard Retanubun334eb4b2011-02-16 16:39:44 -050022/*
23 * This function computes the length argument for the erase command.
24 * The length on which the command is to operate can be given in two forms:
25 * 1. <cmd> offset len - operate on <'offset', 'len')
26 * 2. <cmd> offset +len - operate on <'offset', 'round_up(len)')
27 * If the second form is used and the length doesn't fall on the
28 * sector boundary, than it will be adjusted to the next sector boundary.
29 * If it isn't in the flash, the function will fail (return -1).
30 * Input:
31 * arg: length specification (i.e. both command arguments)
32 * Output:
33 * len: computed length for operation
34 * Return:
35 * 1: success
36 * -1: failure (bad format, bad address).
37 */
38static int sf_parse_len_arg(char *arg, ulong *len)
39{
40 char *ep;
41 char round_up_len; /* indicates if the "+length" form used */
42 ulong len_arg;
43
44 round_up_len = 0;
45 if (*arg == '+') {
46 round_up_len = 1;
47 ++arg;
48 }
49
50 len_arg = simple_strtoul(arg, &ep, 16);
51 if (ep == arg || *ep != '\0')
52 return -1;
53
54 if (round_up_len && flash->sector_size > 0)
Anton Staaf155cfb52011-09-02 13:45:28 +000055 *len = ROUND(len_arg, flash->sector_size);
Richard Retanubun334eb4b2011-02-16 16:39:44 -050056 else
57 *len = len_arg;
58
59 return 1;
60}
61
James Millera683c282012-09-28 14:28:00 +000062/**
63 * This function takes a byte length and a delta unit of time to compute the
64 * approximate bytes per second
65 *
66 * @param len amount of bytes currently processed
67 * @param start_ms start time of processing in ms
68 * @return bytes per second if OK, 0 on error
69 */
70static ulong bytes_per_second(unsigned int len, ulong start_ms)
71{
72 /* less accurate but avoids overflow */
73 if (len >= ((unsigned int) -1) / 1024)
Masahiro Yamadab4141192014-11-07 03:03:31 +090074 return len / (max(get_timer(start_ms) / 1024, 1UL));
James Millera683c282012-09-28 14:28:00 +000075 else
Masahiro Yamadab4141192014-11-07 03:03:31 +090076 return 1024 * len / max(get_timer(start_ms), 1UL);
James Millera683c282012-09-28 14:28:00 +000077}
78
Wolfgang Denk54841ab2010-06-28 22:00:46 +020079static int do_spi_flash_probe(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020080{
Eric Nelsonc1173bd2012-01-31 10:52:07 -070081 unsigned int bus = CONFIG_SF_DEFAULT_BUS;
82 unsigned int cs = CONFIG_SF_DEFAULT_CS;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020083 unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
84 unsigned int mode = CONFIG_SF_DEFAULT_MODE;
85 char *endp;
Simon Glassfbb09912014-10-13 23:42:07 -060086#ifdef CONFIG_DM_SPI_FLASH
87 struct udevice *new, *bus_dev;
88 int ret;
89#else
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020090 struct spi_flash *new;
Simon Glassfbb09912014-10-13 23:42:07 -060091#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020092
Eric Nelsonc1173bd2012-01-31 10:52:07 -070093 if (argc >= 2) {
94 cs = simple_strtoul(argv[1], &endp, 0);
95 if (*argv[1] == 0 || (*endp != 0 && *endp != ':'))
Mike Frysinger8a07de02011-04-12 02:21:31 -040096 return -1;
Eric Nelsonc1173bd2012-01-31 10:52:07 -070097 if (*endp == ':') {
98 if (endp[1] == 0)
99 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200100
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700101 bus = cs;
102 cs = simple_strtoul(endp + 1, &endp, 0);
103 if (*endp != 0)
104 return -1;
105 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200106 }
107
108 if (argc >= 3) {
109 speed = simple_strtoul(argv[2], &endp, 0);
110 if (*argv[2] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400111 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200112 }
113 if (argc >= 4) {
TsiChung Liew6e8d58d2009-06-30 14:30:19 +0000114 mode = simple_strtoul(argv[3], &endp, 16);
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200115 if (*argv[3] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400116 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200117 }
118
Simon Glassfbb09912014-10-13 23:42:07 -0600119#ifdef CONFIG_DM_SPI_FLASH
120 /* Remove the old device, otherwise probe will just be a nop */
121 ret = spi_find_bus_and_cs(bus, cs, &bus_dev, &new);
122 if (!ret) {
123 device_remove(new);
124 device_unbind(new);
125 }
126 flash = NULL;
127 ret = spi_flash_probe_bus_cs(bus, cs, speed, mode, &new);
128 if (ret) {
129 printf("Failed to initialize SPI flash at %u:%u (error %d)\n",
130 bus, cs, ret);
131 return 1;
132 }
133
Simon Glasse564f052015-03-05 12:25:20 -0700134 flash = dev_get_uclass_priv(new);
Simon Glassfbb09912014-10-13 23:42:07 -0600135#else
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200136 new = spi_flash_probe(bus, cs, speed, mode);
137 if (!new) {
138 printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
139 return 1;
140 }
141
142 if (flash)
143 spi_flash_free(flash);
144 flash = new;
Simon Glassfbb09912014-10-13 23:42:07 -0600145#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200146
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200147 return 0;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200148}
149
Simon Glass8d1af942011-08-22 16:03:46 -0700150/**
151 * Write a block of data to SPI flash, first checking if it is different from
152 * what is already there.
153 *
154 * If the data being written is the same, then *skipped is incremented by len.
155 *
156 * @param flash flash context pointer
157 * @param offset flash offset to write
158 * @param len number of bytes to write
159 * @param buf buffer to write from
160 * @param cmp_buf read buffer to use to compare data
161 * @param skipped Count of skipped data (incremented by this function)
162 * @return NULL if OK, else a string containing the stage which failed
163 */
164static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset,
165 size_t len, const char *buf, char *cmp_buf, size_t *skipped)
166{
Stefan Roeseed627562015-01-09 14:39:22 +0100167 char *ptr = (char *)buf;
168
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100169 debug("offset=%#x, sector_size=%#x, len=%#zx\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530170 offset, flash->sector_size, len);
Gerlando Falautob95f9582013-08-27 19:13:57 +0530171 /* Read the entire sector so to allow for rewriting */
172 if (spi_flash_read(flash, offset, flash->sector_size, cmp_buf))
Simon Glass8d1af942011-08-22 16:03:46 -0700173 return "read";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530174 /* Compare only what is meaningful (len) */
Simon Glass8d1af942011-08-22 16:03:46 -0700175 if (memcmp(cmp_buf, buf, len) == 0) {
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100176 debug("Skip region %x size %zx: no change\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530177 offset, len);
Simon Glass8d1af942011-08-22 16:03:46 -0700178 *skipped += len;
179 return NULL;
180 }
Gerlando Falauto34888502013-07-03 20:33:57 +0200181 /* Erase the entire sector */
182 if (spi_flash_erase(flash, offset, flash->sector_size))
Simon Glass8d1af942011-08-22 16:03:46 -0700183 return "erase";
Stefan Roeseed627562015-01-09 14:39:22 +0100184 /* If it's a partial sector, copy the data into the temp-buffer */
Gerlando Falautob95f9582013-08-27 19:13:57 +0530185 if (len != flash->sector_size) {
Stefan Roeseed627562015-01-09 14:39:22 +0100186 memcpy(cmp_buf, buf, len);
187 ptr = cmp_buf;
Gerlando Falautob95f9582013-08-27 19:13:57 +0530188 }
Stefan Roeseed627562015-01-09 14:39:22 +0100189 /* Write one complete sector */
190 if (spi_flash_write(flash, offset, flash->sector_size, ptr))
191 return "write";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530192
Simon Glass8d1af942011-08-22 16:03:46 -0700193 return NULL;
194}
195
196/**
197 * Update an area of SPI flash by erasing and writing any blocks which need
198 * to change. Existing blocks with the correct data are left unchanged.
199 *
200 * @param flash flash context pointer
201 * @param offset flash offset to write
202 * @param len number of bytes to write
203 * @param buf buffer to write from
204 * @return 0 if ok, 1 on error
205 */
206static int spi_flash_update(struct spi_flash *flash, u32 offset,
207 size_t len, const char *buf)
208{
209 const char *err_oper = NULL;
210 char *cmp_buf;
211 const char *end = buf + len;
212 size_t todo; /* number of bytes to do in this pass */
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000213 size_t skipped = 0; /* statistics */
James Millera683c282012-09-28 14:28:00 +0000214 const ulong start_time = get_timer(0);
215 size_t scale = 1;
216 const char *start_buf = buf;
217 ulong delta;
Simon Glass8d1af942011-08-22 16:03:46 -0700218
James Millera683c282012-09-28 14:28:00 +0000219 if (end - buf >= 200)
220 scale = (end - buf) / 100;
Simon Glass8d1af942011-08-22 16:03:46 -0700221 cmp_buf = malloc(flash->sector_size);
222 if (cmp_buf) {
James Millera683c282012-09-28 14:28:00 +0000223 ulong last_update = get_timer(0);
224
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000225 for (; buf < end && !err_oper; buf += todo, offset += todo) {
Masahiro Yamadab4141192014-11-07 03:03:31 +0900226 todo = min_t(size_t, end - buf, flash->sector_size);
James Millera683c282012-09-28 14:28:00 +0000227 if (get_timer(last_update) > 100) {
228 printf(" \rUpdating, %zu%% %lu B/s",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530229 100 - (end - buf) / scale,
James Millera683c282012-09-28 14:28:00 +0000230 bytes_per_second(buf - start_buf,
231 start_time));
232 last_update = get_timer(0);
233 }
Simon Glass8d1af942011-08-22 16:03:46 -0700234 err_oper = spi_flash_update_block(flash, offset, todo,
235 buf, cmp_buf, &skipped);
236 }
237 } else {
238 err_oper = "malloc";
239 }
240 free(cmp_buf);
James Millera683c282012-09-28 14:28:00 +0000241 putc('\r');
Simon Glass8d1af942011-08-22 16:03:46 -0700242 if (err_oper) {
243 printf("SPI flash failed in %s step\n", err_oper);
244 return 1;
245 }
James Millera683c282012-09-28 14:28:00 +0000246
247 delta = get_timer(start_time);
248 printf("%zu bytes written, %zu bytes skipped", len - skipped,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530249 skipped);
James Millera683c282012-09-28 14:28:00 +0000250 printf(" in %ld.%lds, speed %ld B/s\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530251 delta / 1000, delta % 1000, bytes_per_second(len, start_time));
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000252
Simon Glass8d1af942011-08-22 16:03:46 -0700253 return 0;
254}
255
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200256static int do_spi_flash_read_write(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200257{
258 unsigned long addr;
259 unsigned long offset;
260 unsigned long len;
261 void *buf;
262 char *endp;
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530263 int ret = 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200264
265 if (argc < 4)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400266 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200267
268 addr = simple_strtoul(argv[1], &endp, 16);
269 if (*argv[1] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400270 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200271 offset = simple_strtoul(argv[2], &endp, 16);
272 if (*argv[2] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400273 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200274 len = simple_strtoul(argv[3], &endp, 16);
275 if (*argv[3] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400276 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200277
Gerlando Falauto86493992012-04-03 04:34:13 +0000278 /* Consistency checking */
279 if (offset + len > flash->size) {
280 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530281 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000282 return 1;
283 }
284
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200285 buf = map_physmem(addr, len, MAP_WRBACK);
286 if (!buf) {
287 puts("Failed to map physical memory\n");
288 return 1;
289 }
290
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530291 if (strcmp(argv[0], "update") == 0) {
Simon Glass8d1af942011-08-22 16:03:46 -0700292 ret = spi_flash_update(flash, offset, len, buf);
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530293 } else if (strncmp(argv[0], "read", 4) == 0 ||
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530294 strncmp(argv[0], "write", 5) == 0) {
295 int read;
296
297 read = strncmp(argv[0], "read", 4) == 0;
298 if (read)
299 ret = spi_flash_read(flash, offset, len, buf);
300 else
301 ret = spi_flash_write(flash, offset, len, buf);
302
303 printf("SF: %zu bytes @ %#x %s: %s\n", (size_t)len, (u32)offset,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530304 read ? "Read" : "Written", ret ? "ERROR" : "OK");
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530305 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200306
307 unmap_physmem(buf, len);
308
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530309 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200310}
311
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200312static int do_spi_flash_erase(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200313{
314 unsigned long offset;
315 unsigned long len;
316 char *endp;
317 int ret;
318
319 if (argc < 3)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400320 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200321
322 offset = simple_strtoul(argv[1], &endp, 16);
323 if (*argv[1] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400324 return -1;
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500325
326 ret = sf_parse_len_arg(argv[2], &len);
327 if (ret != 1)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400328 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200329
Gerlando Falauto86493992012-04-03 04:34:13 +0000330 /* Consistency checking */
331 if (offset + len > flash->size) {
332 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530333 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000334 return 1;
335 }
336
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200337 ret = spi_flash_erase(flash, offset, len);
Jagannadha Sutradharudu Teki96bbf552013-05-26 01:35:21 +0530338 printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)len, (u32)offset,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530339 ret ? "ERROR" : "OK");
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200340
Jagannadha Sutradharudu Teki96bbf552013-05-26 01:35:21 +0530341 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200342}
343
Simon Glass24007272012-10-08 13:16:02 +0000344#ifdef CONFIG_CMD_SF_TEST
345enum {
346 STAGE_ERASE,
347 STAGE_CHECK,
348 STAGE_WRITE,
349 STAGE_READ,
350
351 STAGE_COUNT,
352};
353
354static char *stage_name[STAGE_COUNT] = {
355 "erase",
356 "check",
357 "write",
358 "read",
359};
360
361struct test_info {
362 int stage;
363 int bytes;
364 unsigned base_ms;
365 unsigned time_ms[STAGE_COUNT];
366};
367
368static void show_time(struct test_info *test, int stage)
369{
370 uint64_t speed; /* KiB/s */
371 int bps; /* Bits per second */
372
373 speed = (long long)test->bytes * 1000;
Simon Glassd1f22d42013-11-10 10:26:51 -0700374 if (test->time_ms[stage])
375 do_div(speed, test->time_ms[stage] * 1024);
Simon Glass24007272012-10-08 13:16:02 +0000376 bps = speed * 8;
377
378 printf("%d %s: %d ticks, %d KiB/s %d.%03d Mbps\n", stage,
379 stage_name[stage], test->time_ms[stage],
380 (int)speed, bps / 1000, bps % 1000);
381}
382
383static void spi_test_next_stage(struct test_info *test)
384{
385 test->time_ms[test->stage] = get_timer(test->base_ms);
386 show_time(test, test->stage);
387 test->base_ms = get_timer(0);
388 test->stage++;
389}
390
391/**
392 * Run a test on the SPI flash
393 *
394 * @param flash SPI flash to use
395 * @param buf Source buffer for data to write
396 * @param len Size of data to read/write
397 * @param offset Offset within flash to check
398 * @param vbuf Verification buffer
399 * @return 0 if ok, -1 on error
400 */
Simon Glass1e7133e2013-03-11 06:08:13 +0000401static int spi_flash_test(struct spi_flash *flash, uint8_t *buf, ulong len,
402 ulong offset, uint8_t *vbuf)
Simon Glass24007272012-10-08 13:16:02 +0000403{
404 struct test_info test;
405 int i;
406
407 printf("SPI flash test:\n");
408 memset(&test, '\0', sizeof(test));
409 test.base_ms = get_timer(0);
410 test.bytes = len;
411 if (spi_flash_erase(flash, offset, len)) {
412 printf("Erase failed\n");
413 return -1;
414 }
415 spi_test_next_stage(&test);
416
417 if (spi_flash_read(flash, offset, len, vbuf)) {
418 printf("Check read failed\n");
419 return -1;
420 }
421 for (i = 0; i < len; i++) {
422 if (vbuf[i] != 0xff) {
423 printf("Check failed at %d\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900424 print_buffer(i, vbuf + i, 1,
425 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000426 return -1;
427 }
428 }
429 spi_test_next_stage(&test);
430
431 if (spi_flash_write(flash, offset, len, buf)) {
432 printf("Write failed\n");
433 return -1;
434 }
435 memset(vbuf, '\0', len);
436 spi_test_next_stage(&test);
437
438 if (spi_flash_read(flash, offset, len, vbuf)) {
439 printf("Read failed\n");
440 return -1;
441 }
442 spi_test_next_stage(&test);
443
444 for (i = 0; i < len; i++) {
445 if (buf[i] != vbuf[i]) {
446 printf("Verify failed at %d, good data:\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900447 print_buffer(i, buf + i, 1,
448 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000449 printf("Bad data:\n");
Masahiro Yamadab4141192014-11-07 03:03:31 +0900450 print_buffer(i, vbuf + i, 1,
451 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000452 return -1;
453 }
454 }
455 printf("Test passed\n");
456 for (i = 0; i < STAGE_COUNT; i++)
457 show_time(&test, i);
458
459 return 0;
460}
461
462static int do_spi_flash_test(int argc, char * const argv[])
463{
464 unsigned long offset;
465 unsigned long len;
Simon Glassd1f22d42013-11-10 10:26:51 -0700466 uint8_t *buf, *from;
Simon Glass24007272012-10-08 13:16:02 +0000467 char *endp;
Simon Glass1e7133e2013-03-11 06:08:13 +0000468 uint8_t *vbuf;
Simon Glass24007272012-10-08 13:16:02 +0000469 int ret;
470
Simon Glassd1f22d42013-11-10 10:26:51 -0700471 if (argc < 3)
472 return -1;
Simon Glass24007272012-10-08 13:16:02 +0000473 offset = simple_strtoul(argv[1], &endp, 16);
474 if (*argv[1] == 0 || *endp != 0)
475 return -1;
476 len = simple_strtoul(argv[2], &endp, 16);
477 if (*argv[2] == 0 || *endp != 0)
478 return -1;
479
480 vbuf = malloc(len);
481 if (!vbuf) {
Simon Glassd1f22d42013-11-10 10:26:51 -0700482 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000483 return 1;
484 }
485 buf = malloc(len);
486 if (!buf) {
487 free(vbuf);
Simon Glassd1f22d42013-11-10 10:26:51 -0700488 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000489 return 1;
490 }
491
Simon Glassd1f22d42013-11-10 10:26:51 -0700492 from = map_sysmem(CONFIG_SYS_TEXT_BASE, 0);
493 memcpy(buf, from, len);
Simon Glass24007272012-10-08 13:16:02 +0000494 ret = spi_flash_test(flash, buf, len, offset, vbuf);
495 free(vbuf);
496 free(buf);
497 if (ret) {
498 printf("Test failed\n");
499 return 1;
500 }
501
502 return 0;
503}
504#endif /* CONFIG_CMD_SF_TEST */
505
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530506static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc,
507 char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200508{
509 const char *cmd;
Mike Frysinger8a07de02011-04-12 02:21:31 -0400510 int ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200511
512 /* need at least two arguments */
513 if (argc < 2)
514 goto usage;
515
516 cmd = argv[1];
Mike Frysinger8a07de02011-04-12 02:21:31 -0400517 --argc;
518 ++argv;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200519
Mike Frysinger8a07de02011-04-12 02:21:31 -0400520 if (strcmp(cmd, "probe") == 0) {
521 ret = do_spi_flash_probe(argc, argv);
522 goto done;
523 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200524
525 /* The remaining commands require a selected device */
526 if (!flash) {
527 puts("No SPI flash selected. Please run `sf probe'\n");
528 return 1;
529 }
530
Simon Glass8d1af942011-08-22 16:03:46 -0700531 if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0 ||
532 strcmp(cmd, "update") == 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400533 ret = do_spi_flash_read_write(argc, argv);
534 else if (strcmp(cmd, "erase") == 0)
535 ret = do_spi_flash_erase(argc, argv);
Simon Glass24007272012-10-08 13:16:02 +0000536#ifdef CONFIG_CMD_SF_TEST
537 else if (!strcmp(cmd, "test"))
538 ret = do_spi_flash_test(argc, argv);
539#endif
Mike Frysinger8a07de02011-04-12 02:21:31 -0400540 else
541 ret = -1;
542
543done:
544 if (ret != -1)
545 return ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200546
547usage:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000548 return CMD_RET_USAGE;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200549}
550
Simon Glass24007272012-10-08 13:16:02 +0000551#ifdef CONFIG_CMD_SF_TEST
552#define SF_TEST_HELP "\nsf test offset len " \
553 "- run a very basic destructive test"
554#else
555#define SF_TEST_HELP
556#endif
557
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200558U_BOOT_CMD(
559 sf, 5, 1, do_spi_flash,
Peter Tyser2fb26042009-01-27 18:03:12 -0600560 "SPI flash sub-system",
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700561 "probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n"
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200562 " and chip select\n"
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530563 "sf read addr offset len - read `len' bytes starting at\n"
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200564 " `offset' to memory at `addr'\n"
565 "sf write addr offset len - write `len' bytes from memory\n"
566 " at `addr' to flash at `offset'\n"
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500567 "sf erase offset [+]len - erase `len' bytes from `offset'\n"
Simon Glass8d1af942011-08-22 16:03:46 -0700568 " `+len' round up `len' to block size\n"
569 "sf update addr offset len - erase and write `len' bytes from memory\n"
570 " at `addr' to flash at `offset'"
Simon Glass24007272012-10-08 13:16:02 +0000571 SF_TEST_HELP
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200572);