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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;
91#else
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020092 struct spi_flash *new;
Simon Glassfbb09912014-10-13 23:42:07 -060093#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020094
Eric Nelsonc1173bd2012-01-31 10:52:07 -070095 if (argc >= 2) {
96 cs = simple_strtoul(argv[1], &endp, 0);
97 if (*argv[1] == 0 || (*endp != 0 && *endp != ':'))
Mike Frysinger8a07de02011-04-12 02:21:31 -040098 return -1;
Eric Nelsonc1173bd2012-01-31 10:52:07 -070099 if (*endp == ':') {
100 if (endp[1] == 0)
101 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200102
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700103 bus = cs;
104 cs = simple_strtoul(endp + 1, &endp, 0);
105 if (*endp != 0)
106 return -1;
107 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200108 }
109
110 if (argc >= 3) {
111 speed = simple_strtoul(argv[2], &endp, 0);
112 if (*argv[2] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400113 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200114 }
115 if (argc >= 4) {
TsiChung Liew6e8d58d2009-06-30 14:30:19 +0000116 mode = simple_strtoul(argv[3], &endp, 16);
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200117 if (*argv[3] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400118 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200119 }
120
Simon Glassfbb09912014-10-13 23:42:07 -0600121#ifdef CONFIG_DM_SPI_FLASH
122 /* Remove the old device, otherwise probe will just be a nop */
123 ret = spi_find_bus_and_cs(bus, cs, &bus_dev, &new);
124 if (!ret) {
125 device_remove(new);
126 device_unbind(new);
127 }
128 flash = NULL;
129 ret = spi_flash_probe_bus_cs(bus, cs, speed, mode, &new);
130 if (ret) {
131 printf("Failed to initialize SPI flash at %u:%u (error %d)\n",
132 bus, cs, ret);
133 return 1;
134 }
135
Simon Glasse564f052015-03-05 12:25:20 -0700136 flash = dev_get_uclass_priv(new);
Simon Glassfbb09912014-10-13 23:42:07 -0600137#else
Heiko Schocher8ee81b72015-04-27 07:42:07 +0200138 if (flash)
139 spi_flash_free(flash);
140
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200141 new = spi_flash_probe(bus, cs, speed, mode);
Heiko Schocher8ee81b72015-04-27 07:42:07 +0200142 flash = new;
143
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200144 if (!new) {
145 printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
146 return 1;
147 }
148
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200149 flash = new;
Simon Glassfbb09912014-10-13 23:42:07 -0600150#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200151
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200152 return 0;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200153}
154
Simon Glass8d1af942011-08-22 16:03:46 -0700155/**
156 * Write a block of data to SPI flash, first checking if it is different from
157 * what is already there.
158 *
159 * If the data being written is the same, then *skipped is incremented by len.
160 *
161 * @param flash flash context pointer
162 * @param offset flash offset to write
163 * @param len number of bytes to write
164 * @param buf buffer to write from
165 * @param cmp_buf read buffer to use to compare data
166 * @param skipped Count of skipped data (incremented by this function)
167 * @return NULL if OK, else a string containing the stage which failed
168 */
169static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset,
170 size_t len, const char *buf, char *cmp_buf, size_t *skipped)
171{
Stefan Roeseed627562015-01-09 14:39:22 +0100172 char *ptr = (char *)buf;
173
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100174 debug("offset=%#x, sector_size=%#x, len=%#zx\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530175 offset, flash->sector_size, len);
Gerlando Falautob95f9582013-08-27 19:13:57 +0530176 /* Read the entire sector so to allow for rewriting */
177 if (spi_flash_read(flash, offset, flash->sector_size, cmp_buf))
Simon Glass8d1af942011-08-22 16:03:46 -0700178 return "read";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530179 /* Compare only what is meaningful (len) */
Simon Glass8d1af942011-08-22 16:03:46 -0700180 if (memcmp(cmp_buf, buf, len) == 0) {
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100181 debug("Skip region %x size %zx: no change\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530182 offset, len);
Simon Glass8d1af942011-08-22 16:03:46 -0700183 *skipped += len;
184 return NULL;
185 }
Gerlando Falauto34888502013-07-03 20:33:57 +0200186 /* Erase the entire sector */
187 if (spi_flash_erase(flash, offset, flash->sector_size))
Simon Glass8d1af942011-08-22 16:03:46 -0700188 return "erase";
Stefan Roeseed627562015-01-09 14:39:22 +0100189 /* If it's a partial sector, copy the data into the temp-buffer */
Gerlando Falautob95f9582013-08-27 19:13:57 +0530190 if (len != flash->sector_size) {
Stefan Roeseed627562015-01-09 14:39:22 +0100191 memcpy(cmp_buf, buf, len);
192 ptr = cmp_buf;
Gerlando Falautob95f9582013-08-27 19:13:57 +0530193 }
Stefan Roeseed627562015-01-09 14:39:22 +0100194 /* Write one complete sector */
195 if (spi_flash_write(flash, offset, flash->sector_size, ptr))
196 return "write";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530197
Simon Glass8d1af942011-08-22 16:03:46 -0700198 return NULL;
199}
200
201/**
202 * Update an area of SPI flash by erasing and writing any blocks which need
203 * to change. Existing blocks with the correct data are left unchanged.
204 *
205 * @param flash flash context pointer
206 * @param offset flash offset to write
207 * @param len number of bytes to write
208 * @param buf buffer to write from
209 * @return 0 if ok, 1 on error
210 */
211static int spi_flash_update(struct spi_flash *flash, u32 offset,
212 size_t len, const char *buf)
213{
214 const char *err_oper = NULL;
215 char *cmp_buf;
216 const char *end = buf + len;
217 size_t todo; /* number of bytes to do in this pass */
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000218 size_t skipped = 0; /* statistics */
James Millera683c282012-09-28 14:28:00 +0000219 const ulong start_time = get_timer(0);
220 size_t scale = 1;
221 const char *start_buf = buf;
222 ulong delta;
Simon Glass8d1af942011-08-22 16:03:46 -0700223
James Millera683c282012-09-28 14:28:00 +0000224 if (end - buf >= 200)
225 scale = (end - buf) / 100;
Ravi Babu156e96f2015-08-17 13:29:48 +0530226 cmp_buf = memalign(ARCH_DMA_MINALIGN, flash->sector_size);
Simon Glass8d1af942011-08-22 16:03:46 -0700227 if (cmp_buf) {
James Millera683c282012-09-28 14:28:00 +0000228 ulong last_update = get_timer(0);
229
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000230 for (; buf < end && !err_oper; buf += todo, offset += todo) {
Masahiro Yamadab4141192014-11-07 03:03:31 +0900231 todo = min_t(size_t, end - buf, flash->sector_size);
James Millera683c282012-09-28 14:28:00 +0000232 if (get_timer(last_update) > 100) {
233 printf(" \rUpdating, %zu%% %lu B/s",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530234 100 - (end - buf) / scale,
James Millera683c282012-09-28 14:28:00 +0000235 bytes_per_second(buf - start_buf,
236 start_time));
237 last_update = get_timer(0);
238 }
Simon Glass8d1af942011-08-22 16:03:46 -0700239 err_oper = spi_flash_update_block(flash, offset, todo,
240 buf, cmp_buf, &skipped);
241 }
242 } else {
243 err_oper = "malloc";
244 }
245 free(cmp_buf);
James Millera683c282012-09-28 14:28:00 +0000246 putc('\r');
Simon Glass8d1af942011-08-22 16:03:46 -0700247 if (err_oper) {
248 printf("SPI flash failed in %s step\n", err_oper);
249 return 1;
250 }
James Millera683c282012-09-28 14:28:00 +0000251
252 delta = get_timer(start_time);
253 printf("%zu bytes written, %zu bytes skipped", len - skipped,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530254 skipped);
James Millera683c282012-09-28 14:28:00 +0000255 printf(" in %ld.%lds, speed %ld B/s\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530256 delta / 1000, delta % 1000, bytes_per_second(len, start_time));
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000257
Simon Glass8d1af942011-08-22 16:03:46 -0700258 return 0;
259}
260
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200261static int do_spi_flash_read_write(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200262{
263 unsigned long addr;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200264 void *buf;
265 char *endp;
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530266 int ret = 1;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200267 int dev = 0;
268 loff_t offset, len, maxsize;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200269
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200270 if (argc < 3)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400271 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200272
273 addr = simple_strtoul(argv[1], &endp, 16);
274 if (*argv[1] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400275 return -1;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200276
277 if (mtd_arg_off_size(argc - 2, &argv[2], &dev, &offset, &len,
278 &maxsize, MTD_DEV_TYPE_NOR, flash->size))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400279 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200280
Gerlando Falauto86493992012-04-03 04:34:13 +0000281 /* Consistency checking */
282 if (offset + len > flash->size) {
283 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530284 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000285 return 1;
286 }
287
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200288 buf = map_physmem(addr, len, MAP_WRBACK);
289 if (!buf) {
290 puts("Failed to map physical memory\n");
291 return 1;
292 }
293
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530294 if (strcmp(argv[0], "update") == 0) {
Simon Glass8d1af942011-08-22 16:03:46 -0700295 ret = spi_flash_update(flash, offset, len, buf);
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530296 } else if (strncmp(argv[0], "read", 4) == 0 ||
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530297 strncmp(argv[0], "write", 5) == 0) {
298 int read;
299
300 read = strncmp(argv[0], "read", 4) == 0;
301 if (read)
302 ret = spi_flash_read(flash, offset, len, buf);
303 else
304 ret = spi_flash_write(flash, offset, len, buf);
305
Simon Glassa7d0711a2015-06-07 08:50:32 -0600306 printf("SF: %zu bytes @ %#x %s: ", (size_t)len, (u32)offset,
307 read ? "Read" : "Written");
308 if (ret)
309 printf("ERROR %d\n", ret);
310 else
311 printf("OK\n");
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530312 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200313
314 unmap_physmem(buf, len);
315
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530316 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200317}
318
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200319static int do_spi_flash_erase(int argc, char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200320{
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200321 int ret;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200322 int dev = 0;
323 loff_t offset, len, maxsize;
324 ulong size;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200325
326 if (argc < 3)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400327 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200328
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200329 if (mtd_arg_off(argv[1], &dev, &offset, &len, &maxsize,
330 MTD_DEV_TYPE_NOR, flash->size))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400331 return -1;
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500332
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200333 ret = sf_parse_len_arg(argv[2], &size);
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500334 if (ret != 1)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400335 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200336
Gerlando Falauto86493992012-04-03 04:34:13 +0000337 /* Consistency checking */
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200338 if (offset + size > flash->size) {
Gerlando Falauto86493992012-04-03 04:34:13 +0000339 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530340 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000341 return 1;
342 }
343
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200344 ret = spi_flash_erase(flash, offset, size);
345 printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)size, (u32)offset,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530346 ret ? "ERROR" : "OK");
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200347
Jagannadha Sutradharudu Teki96bbf552013-05-26 01:35:21 +0530348 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200349}
350
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200351static int do_spi_protect(int argc, char * const argv[])
352{
353 int ret = 0;
354 loff_t start, len;
355 bool prot = false;
356
357 if (argc != 4)
358 return -1;
359
360 if (!str2off(argv[2], &start)) {
361 puts("start sector is not a valid number\n");
362 return 1;
363 }
364
365 if (!str2off(argv[3], &len)) {
366 puts("len is not a valid number\n");
367 return 1;
368 }
369
370 if (strcmp(argv[1], "lock") == 0)
371 prot = true;
372 else if (strcmp(argv[1], "unlock") == 0)
373 prot = false;
374 else
375 return -1; /* Unknown parameter */
376
377 ret = spi_flash_protect(flash, start, len, prot);
378
379 return ret == 0 ? 0 : 1;
380}
381
Simon Glass24007272012-10-08 13:16:02 +0000382#ifdef CONFIG_CMD_SF_TEST
383enum {
384 STAGE_ERASE,
385 STAGE_CHECK,
386 STAGE_WRITE,
387 STAGE_READ,
388
389 STAGE_COUNT,
390};
391
392static char *stage_name[STAGE_COUNT] = {
393 "erase",
394 "check",
395 "write",
396 "read",
397};
398
399struct test_info {
400 int stage;
401 int bytes;
402 unsigned base_ms;
403 unsigned time_ms[STAGE_COUNT];
404};
405
406static void show_time(struct test_info *test, int stage)
407{
408 uint64_t speed; /* KiB/s */
409 int bps; /* Bits per second */
410
411 speed = (long long)test->bytes * 1000;
Simon Glassd1f22d42013-11-10 10:26:51 -0700412 if (test->time_ms[stage])
413 do_div(speed, test->time_ms[stage] * 1024);
Simon Glass24007272012-10-08 13:16:02 +0000414 bps = speed * 8;
415
416 printf("%d %s: %d ticks, %d KiB/s %d.%03d Mbps\n", stage,
417 stage_name[stage], test->time_ms[stage],
418 (int)speed, bps / 1000, bps % 1000);
419}
420
421static void spi_test_next_stage(struct test_info *test)
422{
423 test->time_ms[test->stage] = get_timer(test->base_ms);
424 show_time(test, test->stage);
425 test->base_ms = get_timer(0);
426 test->stage++;
427}
428
429/**
430 * Run a test on the SPI flash
431 *
432 * @param flash SPI flash to use
433 * @param buf Source buffer for data to write
434 * @param len Size of data to read/write
435 * @param offset Offset within flash to check
436 * @param vbuf Verification buffer
437 * @return 0 if ok, -1 on error
438 */
Simon Glass1e7133e2013-03-11 06:08:13 +0000439static int spi_flash_test(struct spi_flash *flash, uint8_t *buf, ulong len,
440 ulong offset, uint8_t *vbuf)
Simon Glass24007272012-10-08 13:16:02 +0000441{
442 struct test_info test;
443 int i;
444
445 printf("SPI flash test:\n");
446 memset(&test, '\0', sizeof(test));
447 test.base_ms = get_timer(0);
448 test.bytes = len;
449 if (spi_flash_erase(flash, offset, len)) {
450 printf("Erase failed\n");
451 return -1;
452 }
453 spi_test_next_stage(&test);
454
455 if (spi_flash_read(flash, offset, len, vbuf)) {
456 printf("Check read failed\n");
457 return -1;
458 }
459 for (i = 0; i < len; i++) {
460 if (vbuf[i] != 0xff) {
461 printf("Check failed at %d\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900462 print_buffer(i, vbuf + i, 1,
463 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000464 return -1;
465 }
466 }
467 spi_test_next_stage(&test);
468
469 if (spi_flash_write(flash, offset, len, buf)) {
470 printf("Write failed\n");
471 return -1;
472 }
473 memset(vbuf, '\0', len);
474 spi_test_next_stage(&test);
475
476 if (spi_flash_read(flash, offset, len, vbuf)) {
477 printf("Read failed\n");
478 return -1;
479 }
480 spi_test_next_stage(&test);
481
482 for (i = 0; i < len; i++) {
483 if (buf[i] != vbuf[i]) {
484 printf("Verify failed at %d, good data:\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900485 print_buffer(i, buf + i, 1,
486 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000487 printf("Bad data:\n");
Masahiro Yamadab4141192014-11-07 03:03:31 +0900488 print_buffer(i, vbuf + i, 1,
489 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000490 return -1;
491 }
492 }
493 printf("Test passed\n");
494 for (i = 0; i < STAGE_COUNT; i++)
495 show_time(&test, i);
496
497 return 0;
498}
499
500static int do_spi_flash_test(int argc, char * const argv[])
501{
502 unsigned long offset;
503 unsigned long len;
Simon Glassd1f22d42013-11-10 10:26:51 -0700504 uint8_t *buf, *from;
Simon Glass24007272012-10-08 13:16:02 +0000505 char *endp;
Simon Glass1e7133e2013-03-11 06:08:13 +0000506 uint8_t *vbuf;
Simon Glass24007272012-10-08 13:16:02 +0000507 int ret;
508
Simon Glassd1f22d42013-11-10 10:26:51 -0700509 if (argc < 3)
510 return -1;
Simon Glass24007272012-10-08 13:16:02 +0000511 offset = simple_strtoul(argv[1], &endp, 16);
512 if (*argv[1] == 0 || *endp != 0)
513 return -1;
514 len = simple_strtoul(argv[2], &endp, 16);
515 if (*argv[2] == 0 || *endp != 0)
516 return -1;
517
Ravi Babu156e96f2015-08-17 13:29:48 +0530518 vbuf = memalign(ARCH_DMA_MINALIGN, len);
Simon Glass24007272012-10-08 13:16:02 +0000519 if (!vbuf) {
Simon Glassd1f22d42013-11-10 10:26:51 -0700520 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000521 return 1;
522 }
Ravi Babu156e96f2015-08-17 13:29:48 +0530523 buf = memalign(ARCH_DMA_MINALIGN, len);
Simon Glass24007272012-10-08 13:16:02 +0000524 if (!buf) {
525 free(vbuf);
Simon Glassd1f22d42013-11-10 10:26:51 -0700526 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000527 return 1;
528 }
529
Simon Glassd1f22d42013-11-10 10:26:51 -0700530 from = map_sysmem(CONFIG_SYS_TEXT_BASE, 0);
531 memcpy(buf, from, len);
Simon Glass24007272012-10-08 13:16:02 +0000532 ret = spi_flash_test(flash, buf, len, offset, vbuf);
533 free(vbuf);
534 free(buf);
535 if (ret) {
536 printf("Test failed\n");
537 return 1;
538 }
539
540 return 0;
541}
542#endif /* CONFIG_CMD_SF_TEST */
543
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530544static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc,
545 char * const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200546{
547 const char *cmd;
Mike Frysinger8a07de02011-04-12 02:21:31 -0400548 int ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200549
550 /* need at least two arguments */
551 if (argc < 2)
552 goto usage;
553
554 cmd = argv[1];
Mike Frysinger8a07de02011-04-12 02:21:31 -0400555 --argc;
556 ++argv;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200557
Mike Frysinger8a07de02011-04-12 02:21:31 -0400558 if (strcmp(cmd, "probe") == 0) {
559 ret = do_spi_flash_probe(argc, argv);
560 goto done;
561 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200562
563 /* The remaining commands require a selected device */
564 if (!flash) {
565 puts("No SPI flash selected. Please run `sf probe'\n");
566 return 1;
567 }
568
Simon Glass8d1af942011-08-22 16:03:46 -0700569 if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0 ||
570 strcmp(cmd, "update") == 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400571 ret = do_spi_flash_read_write(argc, argv);
572 else if (strcmp(cmd, "erase") == 0)
573 ret = do_spi_flash_erase(argc, argv);
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200574 else if (strcmp(cmd, "protect") == 0)
575 ret = do_spi_protect(argc, argv);
Simon Glass24007272012-10-08 13:16:02 +0000576#ifdef CONFIG_CMD_SF_TEST
577 else if (!strcmp(cmd, "test"))
578 ret = do_spi_flash_test(argc, argv);
579#endif
Mike Frysinger8a07de02011-04-12 02:21:31 -0400580 else
581 ret = -1;
582
583done:
584 if (ret != -1)
585 return ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200586
587usage:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000588 return CMD_RET_USAGE;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200589}
590
Simon Glass24007272012-10-08 13:16:02 +0000591#ifdef CONFIG_CMD_SF_TEST
592#define SF_TEST_HELP "\nsf test offset len " \
593 "- run a very basic destructive test"
594#else
595#define SF_TEST_HELP
596#endif
597
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200598U_BOOT_CMD(
599 sf, 5, 1, do_spi_flash,
Peter Tyser2fb26042009-01-27 18:03:12 -0600600 "SPI flash sub-system",
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700601 "probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n"
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200602 " and chip select\n"
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200603 "sf read addr offset|partition len - read `len' bytes starting at\n"
604 " `offset' or from start of mtd\n"
605 " `partition'to memory at `addr'\n"
606 "sf write addr offset|partition len - write `len' bytes from memory\n"
607 " at `addr' to flash at `offset'\n"
608 " or to start of mtd `partition'\n"
609 "sf erase offset|partition [+]len - erase `len' bytes from `offset'\n"
610 " or from start of mtd `partition'\n"
611 " `+len' round up `len' to block size\n"
612 "sf update addr offset|partition len - erase and write `len' bytes from memory\n"
613 " at `addr' to flash at `offset'\n"
614 " or to start of mtd `partition'\n"
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200615 "sf protect lock/unlock sector len - protect/unprotect 'len' bytes starting\n"
616 " at address 'sector'\n"
Simon Glass24007272012-10-08 13:16:02 +0000617 SF_TEST_HELP
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200618);