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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>
Heiko Schocher2ec1a402015-04-27 07:42:06 +020016#include <jffs2/jffs2.h>
17#include <linux/mtd/mtd.h>
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020018
19#include <asm/io.h>
Simon Glassfbb09912014-10-13 23:42:07 -060020#include <dm/device-internal.h>
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020021
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020022static struct spi_flash *flash;
23
Richard Retanubun334eb4b2011-02-16 16:39:44 -050024/*
25 * This function computes the length argument for the erase command.
26 * The length on which the command is to operate can be given in two forms:
27 * 1. <cmd> offset len - operate on <'offset', 'len')
28 * 2. <cmd> offset +len - operate on <'offset', 'round_up(len)')
29 * If the second form is used and the length doesn't fall on the
30 * sector boundary, than it will be adjusted to the next sector boundary.
31 * If it isn't in the flash, the function will fail (return -1).
32 * Input:
33 * arg: length specification (i.e. both command arguments)
34 * Output:
35 * len: computed length for operation
36 * Return:
37 * 1: success
38 * -1: failure (bad format, bad address).
39 */
40static int sf_parse_len_arg(char *arg, ulong *len)
41{
42 char *ep;
43 char round_up_len; /* indicates if the "+length" form used */
44 ulong len_arg;
45
46 round_up_len = 0;
47 if (*arg == '+') {
48 round_up_len = 1;
49 ++arg;
50 }
51
52 len_arg = simple_strtoul(arg, &ep, 16);
53 if (ep == arg || *ep != '\0')
54 return -1;
55
56 if (round_up_len && flash->sector_size > 0)
Anton Staaf155cfb52011-09-02 13:45:28 +000057 *len = ROUND(len_arg, flash->sector_size);
Richard Retanubun334eb4b2011-02-16 16:39:44 -050058 else
59 *len = len_arg;
60
61 return 1;
62}
63
James Millera683c282012-09-28 14:28:00 +000064/**
65 * This function takes a byte length and a delta unit of time to compute the
66 * approximate bytes per second
67 *
68 * @param len amount of bytes currently processed
69 * @param start_ms start time of processing in ms
70 * @return bytes per second if OK, 0 on error
71 */
72static ulong bytes_per_second(unsigned int len, ulong start_ms)
73{
74 /* less accurate but avoids overflow */
75 if (len >= ((unsigned int) -1) / 1024)
Masahiro Yamadab4141192014-11-07 03:03:31 +090076 return len / (max(get_timer(start_ms) / 1024, 1UL));
James Millera683c282012-09-28 14:28:00 +000077 else
Masahiro Yamadab4141192014-11-07 03:03:31 +090078 return 1024 * len / max(get_timer(start_ms), 1UL);
James Millera683c282012-09-28 14:28:00 +000079}
80
Wolfgang Denk54841ab2010-06-28 22:00:46 +020081static int do_spi_flash_probe(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020082{
Eric Nelsonc1173bd2012-01-31 10:52:07 -070083 unsigned int bus = CONFIG_SF_DEFAULT_BUS;
84 unsigned int cs = CONFIG_SF_DEFAULT_CS;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020085 unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
86 unsigned int mode = CONFIG_SF_DEFAULT_MODE;
87 char *endp;
Simon Glassfbb09912014-10-13 23:42:07 -060088#ifdef CONFIG_DM_SPI_FLASH
89 struct udevice *new, *bus_dev;
90 int ret;
Vignesh R96907c02016-07-06 10:04:28 +053091 /* In DM mode defaults will be taken from DT */
92 speed = 0, mode = 0;
Simon Glassfbb09912014-10-13 23:42:07 -060093#else
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020094 struct spi_flash *new;
Simon Glassfbb09912014-10-13 23:42:07 -060095#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020096
Eric Nelsonc1173bd2012-01-31 10:52:07 -070097 if (argc >= 2) {
98 cs = simple_strtoul(argv[1], &endp, 0);
99 if (*argv[1] == 0 || (*endp != 0 && *endp != ':'))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400100 return -1;
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700101 if (*endp == ':') {
102 if (endp[1] == 0)
103 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200104
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700105 bus = cs;
106 cs = simple_strtoul(endp + 1, &endp, 0);
107 if (*endp != 0)
108 return -1;
109 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200110 }
111
112 if (argc >= 3) {
113 speed = simple_strtoul(argv[2], &endp, 0);
114 if (*argv[2] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400115 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200116 }
117 if (argc >= 4) {
TsiChung Liew6e8d58d2009-06-30 14:30:19 +0000118 mode = simple_strtoul(argv[3], &endp, 16);
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200119 if (*argv[3] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400120 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200121 }
122
Simon Glassfbb09912014-10-13 23:42:07 -0600123#ifdef CONFIG_DM_SPI_FLASH
124 /* Remove the old device, otherwise probe will just be a nop */
125 ret = spi_find_bus_and_cs(bus, cs, &bus_dev, &new);
126 if (!ret) {
127 device_remove(new);
Simon Glassfbb09912014-10-13 23:42:07 -0600128 }
129 flash = NULL;
130 ret = spi_flash_probe_bus_cs(bus, cs, speed, mode, &new);
131 if (ret) {
132 printf("Failed to initialize SPI flash at %u:%u (error %d)\n",
133 bus, cs, ret);
134 return 1;
135 }
136
Simon Glasse564f052015-03-05 12:25:20 -0700137 flash = dev_get_uclass_priv(new);
Simon Glassfbb09912014-10-13 23:42:07 -0600138#else
Heiko Schocher8ee81b72015-04-27 07:42:07 +0200139 if (flash)
140 spi_flash_free(flash);
141
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200142 new = spi_flash_probe(bus, cs, speed, mode);
Heiko Schocher8ee81b72015-04-27 07:42:07 +0200143 flash = new;
144
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200145 if (!new) {
146 printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
147 return 1;
148 }
149
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200150 flash = new;
Simon Glassfbb09912014-10-13 23:42:07 -0600151#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200152
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200153 return 0;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200154}
155
Simon Glass8d1af942011-08-22 16:03:46 -0700156/**
157 * Write a block of data to SPI flash, first checking if it is different from
158 * what is already there.
159 *
160 * If the data being written is the same, then *skipped is incremented by len.
161 *
162 * @param flash flash context pointer
163 * @param offset flash offset to write
164 * @param len number of bytes to write
165 * @param buf buffer to write from
166 * @param cmp_buf read buffer to use to compare data
167 * @param skipped Count of skipped data (incremented by this function)
168 * @return NULL if OK, else a string containing the stage which failed
169 */
170static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset,
171 size_t len, const char *buf, char *cmp_buf, size_t *skipped)
172{
Stefan Roeseed627562015-01-09 14:39:22 +0100173 char *ptr = (char *)buf;
174
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100175 debug("offset=%#x, sector_size=%#x, len=%#zx\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530176 offset, flash->sector_size, len);
Gerlando Falautob95f9582013-08-27 19:13:57 +0530177 /* Read the entire sector so to allow for rewriting */
178 if (spi_flash_read(flash, offset, flash->sector_size, cmp_buf))
Simon Glass8d1af942011-08-22 16:03:46 -0700179 return "read";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530180 /* Compare only what is meaningful (len) */
Simon Glass8d1af942011-08-22 16:03:46 -0700181 if (memcmp(cmp_buf, buf, len) == 0) {
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100182 debug("Skip region %x size %zx: no change\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530183 offset, len);
Simon Glass8d1af942011-08-22 16:03:46 -0700184 *skipped += len;
185 return NULL;
186 }
Gerlando Falauto34888502013-07-03 20:33:57 +0200187 /* Erase the entire sector */
188 if (spi_flash_erase(flash, offset, flash->sector_size))
Simon Glass8d1af942011-08-22 16:03:46 -0700189 return "erase";
Stefan Roeseed627562015-01-09 14:39:22 +0100190 /* If it's a partial sector, copy the data into the temp-buffer */
Gerlando Falautob95f9582013-08-27 19:13:57 +0530191 if (len != flash->sector_size) {
Stefan Roeseed627562015-01-09 14:39:22 +0100192 memcpy(cmp_buf, buf, len);
193 ptr = cmp_buf;
Gerlando Falautob95f9582013-08-27 19:13:57 +0530194 }
Stefan Roeseed627562015-01-09 14:39:22 +0100195 /* Write one complete sector */
196 if (spi_flash_write(flash, offset, flash->sector_size, ptr))
197 return "write";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530198
Simon Glass8d1af942011-08-22 16:03:46 -0700199 return NULL;
200}
201
202/**
203 * Update an area of SPI flash by erasing and writing any blocks which need
204 * to change. Existing blocks with the correct data are left unchanged.
205 *
206 * @param flash flash context pointer
207 * @param offset flash offset to write
208 * @param len number of bytes to write
209 * @param buf buffer to write from
210 * @return 0 if ok, 1 on error
211 */
212static int spi_flash_update(struct spi_flash *flash, u32 offset,
213 size_t len, const char *buf)
214{
215 const char *err_oper = NULL;
216 char *cmp_buf;
217 const char *end = buf + len;
218 size_t todo; /* number of bytes to do in this pass */
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000219 size_t skipped = 0; /* statistics */
James Millera683c282012-09-28 14:28:00 +0000220 const ulong start_time = get_timer(0);
221 size_t scale = 1;
222 const char *start_buf = buf;
223 ulong delta;
Simon Glass8d1af942011-08-22 16:03:46 -0700224
James Millera683c282012-09-28 14:28:00 +0000225 if (end - buf >= 200)
226 scale = (end - buf) / 100;
Ravi Babu156e96f2015-08-17 13:29:48 +0530227 cmp_buf = memalign(ARCH_DMA_MINALIGN, flash->sector_size);
Simon Glass8d1af942011-08-22 16:03:46 -0700228 if (cmp_buf) {
James Millera683c282012-09-28 14:28:00 +0000229 ulong last_update = get_timer(0);
230
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000231 for (; buf < end && !err_oper; buf += todo, offset += todo) {
Masahiro Yamadab4141192014-11-07 03:03:31 +0900232 todo = min_t(size_t, end - buf, flash->sector_size);
James Millera683c282012-09-28 14:28:00 +0000233 if (get_timer(last_update) > 100) {
234 printf(" \rUpdating, %zu%% %lu B/s",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530235 100 - (end - buf) / scale,
James Millera683c282012-09-28 14:28:00 +0000236 bytes_per_second(buf - start_buf,
237 start_time));
238 last_update = get_timer(0);
239 }
Simon Glass8d1af942011-08-22 16:03:46 -0700240 err_oper = spi_flash_update_block(flash, offset, todo,
241 buf, cmp_buf, &skipped);
242 }
243 } else {
244 err_oper = "malloc";
245 }
246 free(cmp_buf);
James Millera683c282012-09-28 14:28:00 +0000247 putc('\r');
Simon Glass8d1af942011-08-22 16:03:46 -0700248 if (err_oper) {
249 printf("SPI flash failed in %s step\n", err_oper);
250 return 1;
251 }
James Millera683c282012-09-28 14:28:00 +0000252
253 delta = get_timer(start_time);
254 printf("%zu bytes written, %zu bytes skipped", len - skipped,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530255 skipped);
James Millera683c282012-09-28 14:28:00 +0000256 printf(" in %ld.%lds, speed %ld B/s\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530257 delta / 1000, delta % 1000, bytes_per_second(len, start_time));
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000258
Simon Glass8d1af942011-08-22 16:03:46 -0700259 return 0;
260}
261
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200262static int do_spi_flash_read_write(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200263{
264 unsigned long addr;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200265 void *buf;
266 char *endp;
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530267 int ret = 1;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200268 int dev = 0;
269 loff_t offset, len, maxsize;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200270
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200271 if (argc < 3)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400272 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200273
274 addr = simple_strtoul(argv[1], &endp, 16);
275 if (*argv[1] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400276 return -1;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200277
278 if (mtd_arg_off_size(argc - 2, &argv[2], &dev, &offset, &len,
279 &maxsize, MTD_DEV_TYPE_NOR, flash->size))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400280 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200281
Gerlando Falauto86493992012-04-03 04:34:13 +0000282 /* Consistency checking */
283 if (offset + len > flash->size) {
284 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530285 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000286 return 1;
287 }
288
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200289 buf = map_physmem(addr, len, MAP_WRBACK);
290 if (!buf) {
291 puts("Failed to map physical memory\n");
292 return 1;
293 }
294
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530295 if (strcmp(argv[0], "update") == 0) {
Simon Glass8d1af942011-08-22 16:03:46 -0700296 ret = spi_flash_update(flash, offset, len, buf);
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530297 } else if (strncmp(argv[0], "read", 4) == 0 ||
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530298 strncmp(argv[0], "write", 5) == 0) {
299 int read;
300
301 read = strncmp(argv[0], "read", 4) == 0;
302 if (read)
303 ret = spi_flash_read(flash, offset, len, buf);
304 else
305 ret = spi_flash_write(flash, offset, len, buf);
306
Simon Glassa7d0711a2015-06-07 08:50:32 -0600307 printf("SF: %zu bytes @ %#x %s: ", (size_t)len, (u32)offset,
308 read ? "Read" : "Written");
309 if (ret)
310 printf("ERROR %d\n", ret);
311 else
312 printf("OK\n");
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530313 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200314
315 unmap_physmem(buf, len);
316
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530317 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200318}
319
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200320static int do_spi_flash_erase(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200321{
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200322 int ret;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200323 int dev = 0;
324 loff_t offset, len, maxsize;
325 ulong size;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200326
327 if (argc < 3)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400328 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200329
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200330 if (mtd_arg_off(argv[1], &dev, &offset, &len, &maxsize,
331 MTD_DEV_TYPE_NOR, flash->size))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400332 return -1;
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500333
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200334 ret = sf_parse_len_arg(argv[2], &size);
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500335 if (ret != 1)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400336 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200337
Gerlando Falauto86493992012-04-03 04:34:13 +0000338 /* Consistency checking */
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200339 if (offset + size > flash->size) {
Gerlando Falauto86493992012-04-03 04:34:13 +0000340 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530341 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000342 return 1;
343 }
344
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200345 ret = spi_flash_erase(flash, offset, size);
346 printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)size, (u32)offset,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530347 ret ? "ERROR" : "OK");
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200348
Jagannadha Sutradharudu Teki96bbf552013-05-26 01:35:21 +0530349 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200350}
351
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200352static int do_spi_protect(int argc, char * const argv[])
353{
354 int ret = 0;
355 loff_t start, len;
356 bool prot = false;
357
358 if (argc != 4)
359 return -1;
360
361 if (!str2off(argv[2], &start)) {
362 puts("start sector is not a valid number\n");
363 return 1;
364 }
365
366 if (!str2off(argv[3], &len)) {
367 puts("len is not a valid number\n");
368 return 1;
369 }
370
371 if (strcmp(argv[1], "lock") == 0)
372 prot = true;
373 else if (strcmp(argv[1], "unlock") == 0)
374 prot = false;
375 else
376 return -1; /* Unknown parameter */
377
378 ret = spi_flash_protect(flash, start, len, prot);
379
380 return ret == 0 ? 0 : 1;
381}
382
Simon Glass24007272012-10-08 13:16:02 +0000383#ifdef CONFIG_CMD_SF_TEST
384enum {
385 STAGE_ERASE,
386 STAGE_CHECK,
387 STAGE_WRITE,
388 STAGE_READ,
389
390 STAGE_COUNT,
391};
392
393static char *stage_name[STAGE_COUNT] = {
394 "erase",
395 "check",
396 "write",
397 "read",
398};
399
400struct test_info {
401 int stage;
402 int bytes;
403 unsigned base_ms;
404 unsigned time_ms[STAGE_COUNT];
405};
406
407static void show_time(struct test_info *test, int stage)
408{
409 uint64_t speed; /* KiB/s */
410 int bps; /* Bits per second */
411
412 speed = (long long)test->bytes * 1000;
Simon Glassd1f22d42013-11-10 10:26:51 -0700413 if (test->time_ms[stage])
414 do_div(speed, test->time_ms[stage] * 1024);
Simon Glass24007272012-10-08 13:16:02 +0000415 bps = speed * 8;
416
417 printf("%d %s: %d ticks, %d KiB/s %d.%03d Mbps\n", stage,
418 stage_name[stage], test->time_ms[stage],
419 (int)speed, bps / 1000, bps % 1000);
420}
421
422static void spi_test_next_stage(struct test_info *test)
423{
424 test->time_ms[test->stage] = get_timer(test->base_ms);
425 show_time(test, test->stage);
426 test->base_ms = get_timer(0);
427 test->stage++;
428}
429
430/**
431 * Run a test on the SPI flash
432 *
433 * @param flash SPI flash to use
434 * @param buf Source buffer for data to write
435 * @param len Size of data to read/write
436 * @param offset Offset within flash to check
437 * @param vbuf Verification buffer
438 * @return 0 if ok, -1 on error
439 */
Simon Glass1e7133e2013-03-11 06:08:13 +0000440static int spi_flash_test(struct spi_flash *flash, uint8_t *buf, ulong len,
441 ulong offset, uint8_t *vbuf)
Simon Glass24007272012-10-08 13:16:02 +0000442{
443 struct test_info test;
444 int i;
445
446 printf("SPI flash test:\n");
447 memset(&test, '\0', sizeof(test));
448 test.base_ms = get_timer(0);
449 test.bytes = len;
450 if (spi_flash_erase(flash, offset, len)) {
451 printf("Erase failed\n");
452 return -1;
453 }
454 spi_test_next_stage(&test);
455
456 if (spi_flash_read(flash, offset, len, vbuf)) {
457 printf("Check read failed\n");
458 return -1;
459 }
460 for (i = 0; i < len; i++) {
461 if (vbuf[i] != 0xff) {
462 printf("Check failed at %d\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900463 print_buffer(i, vbuf + i, 1,
464 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000465 return -1;
466 }
467 }
468 spi_test_next_stage(&test);
469
470 if (spi_flash_write(flash, offset, len, buf)) {
471 printf("Write failed\n");
472 return -1;
473 }
474 memset(vbuf, '\0', len);
475 spi_test_next_stage(&test);
476
477 if (spi_flash_read(flash, offset, len, vbuf)) {
478 printf("Read failed\n");
479 return -1;
480 }
481 spi_test_next_stage(&test);
482
483 for (i = 0; i < len; i++) {
484 if (buf[i] != vbuf[i]) {
485 printf("Verify failed at %d, good data:\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900486 print_buffer(i, buf + i, 1,
487 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000488 printf("Bad data:\n");
Masahiro Yamadab4141192014-11-07 03:03:31 +0900489 print_buffer(i, vbuf + i, 1,
490 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000491 return -1;
492 }
493 }
494 printf("Test passed\n");
495 for (i = 0; i < STAGE_COUNT; i++)
496 show_time(&test, i);
497
498 return 0;
499}
500
501static int do_spi_flash_test(int argc, char * const argv[])
502{
503 unsigned long offset;
504 unsigned long len;
Simon Glassd1f22d42013-11-10 10:26:51 -0700505 uint8_t *buf, *from;
Simon Glass24007272012-10-08 13:16:02 +0000506 char *endp;
Simon Glass1e7133e2013-03-11 06:08:13 +0000507 uint8_t *vbuf;
Simon Glass24007272012-10-08 13:16:02 +0000508 int ret;
509
Simon Glassd1f22d42013-11-10 10:26:51 -0700510 if (argc < 3)
511 return -1;
Simon Glass24007272012-10-08 13:16:02 +0000512 offset = simple_strtoul(argv[1], &endp, 16);
513 if (*argv[1] == 0 || *endp != 0)
514 return -1;
515 len = simple_strtoul(argv[2], &endp, 16);
516 if (*argv[2] == 0 || *endp != 0)
517 return -1;
518
Ravi Babu156e96f2015-08-17 13:29:48 +0530519 vbuf = memalign(ARCH_DMA_MINALIGN, len);
Simon Glass24007272012-10-08 13:16:02 +0000520 if (!vbuf) {
Simon Glassd1f22d42013-11-10 10:26:51 -0700521 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000522 return 1;
523 }
Ravi Babu156e96f2015-08-17 13:29:48 +0530524 buf = memalign(ARCH_DMA_MINALIGN, len);
Simon Glass24007272012-10-08 13:16:02 +0000525 if (!buf) {
526 free(vbuf);
Simon Glassd1f22d42013-11-10 10:26:51 -0700527 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000528 return 1;
529 }
530
Simon Glassd1f22d42013-11-10 10:26:51 -0700531 from = map_sysmem(CONFIG_SYS_TEXT_BASE, 0);
532 memcpy(buf, from, len);
Simon Glass24007272012-10-08 13:16:02 +0000533 ret = spi_flash_test(flash, buf, len, offset, vbuf);
534 free(vbuf);
535 free(buf);
536 if (ret) {
537 printf("Test failed\n");
538 return 1;
539 }
540
541 return 0;
542}
543#endif /* CONFIG_CMD_SF_TEST */
544
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530545static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc,
546 char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200547{
548 const char *cmd;
Mike Frysinger8a07de02011-04-12 02:21:31 -0400549 int ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200550
551 /* need at least two arguments */
552 if (argc < 2)
553 goto usage;
554
555 cmd = argv[1];
Mike Frysinger8a07de02011-04-12 02:21:31 -0400556 --argc;
557 ++argv;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200558
Mike Frysinger8a07de02011-04-12 02:21:31 -0400559 if (strcmp(cmd, "probe") == 0) {
560 ret = do_spi_flash_probe(argc, argv);
561 goto done;
562 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200563
564 /* The remaining commands require a selected device */
565 if (!flash) {
566 puts("No SPI flash selected. Please run `sf probe'\n");
567 return 1;
568 }
569
Simon Glass8d1af942011-08-22 16:03:46 -0700570 if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0 ||
571 strcmp(cmd, "update") == 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400572 ret = do_spi_flash_read_write(argc, argv);
573 else if (strcmp(cmd, "erase") == 0)
574 ret = do_spi_flash_erase(argc, argv);
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200575 else if (strcmp(cmd, "protect") == 0)
576 ret = do_spi_protect(argc, argv);
Simon Glass24007272012-10-08 13:16:02 +0000577#ifdef CONFIG_CMD_SF_TEST
578 else if (!strcmp(cmd, "test"))
579 ret = do_spi_flash_test(argc, argv);
580#endif
Mike Frysinger8a07de02011-04-12 02:21:31 -0400581 else
582 ret = -1;
583
584done:
585 if (ret != -1)
586 return ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200587
588usage:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000589 return CMD_RET_USAGE;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200590}
591
Simon Glass24007272012-10-08 13:16:02 +0000592#ifdef CONFIG_CMD_SF_TEST
593#define SF_TEST_HELP "\nsf test offset len " \
594 "- run a very basic destructive test"
595#else
596#define SF_TEST_HELP
597#endif
598
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200599U_BOOT_CMD(
600 sf, 5, 1, do_spi_flash,
Peter Tyser2fb26042009-01-27 18:03:12 -0600601 "SPI flash sub-system",
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700602 "probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n"
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200603 " and chip select\n"
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200604 "sf read addr offset|partition len - read `len' bytes starting at\n"
605 " `offset' or from start of mtd\n"
606 " `partition'to memory at `addr'\n"
607 "sf write addr offset|partition len - write `len' bytes from memory\n"
608 " at `addr' to flash at `offset'\n"
609 " or to start of mtd `partition'\n"
610 "sf erase offset|partition [+]len - erase `len' bytes from `offset'\n"
611 " or from start of mtd `partition'\n"
612 " `+len' round up `len' to block size\n"
613 "sf update addr offset|partition len - erase and write `len' bytes from memory\n"
614 " at `addr' to flash at `offset'\n"
615 " or to start of mtd `partition'\n"
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200616 "sf protect lock/unlock sector len - protect/unprotect 'len' bytes starting\n"
617 " at address 'sector'\n"
Simon Glass24007272012-10-08 13:16:02 +0000618 SF_TEST_HELP
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200619);