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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Haavard Skinnemoenb6368462008-05-16 11:10:34 +02002/*
3 * Command for accessing SPI flash.
4 *
5 * Copyright (C) 2008 Atmel Corporation
6 */
Mike Frysinger4166ee52009-10-09 17:12:44 -04007
Haavard Skinnemoenb6368462008-05-16 11:10:34 +02008#include <common.h>
Simon Glass09140112020-05-10 11:40:03 -06009#include <command.h>
Mingkai Hu381c6e22013-04-07 22:13:32 +000010#include <div64.h>
Simon Glassfbb09912014-10-13 23:42:07 -060011#include <dm.h>
Simon Glassb79fdc72020-05-10 11:39:54 -060012#include <flash.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -060013#include <log.h>
Simon Glass8d1af942011-08-22 16:03:46 -070014#include <malloc.h>
Joe Hershberger0eb25b62015-03-22 17:08:59 -050015#include <mapmem.h>
Simon Glassff0960f2014-10-13 23:42:04 -060016#include <spi.h>
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020017#include <spi_flash.h>
Simon Glass90526e92020-05-10 11:39:56 -060018#include <asm/cache.h>
Heiko Schocher2ec1a402015-04-27 07:42:06 +020019#include <jffs2/jffs2.h>
20#include <linux/mtd/mtd.h>
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020021
22#include <asm/io.h>
Simon Glassfbb09912014-10-13 23:42:07 -060023#include <dm/device-internal.h>
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020024
Miquel Raynaleb446ef2019-10-25 19:39:29 +020025#include "legacy-mtd-utils.h"
26
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020027static struct spi_flash *flash;
28
Richard Retanubun334eb4b2011-02-16 16:39:44 -050029/*
30 * This function computes the length argument for the erase command.
31 * The length on which the command is to operate can be given in two forms:
32 * 1. <cmd> offset len - operate on <'offset', 'len')
33 * 2. <cmd> offset +len - operate on <'offset', 'round_up(len)')
34 * If the second form is used and the length doesn't fall on the
35 * sector boundary, than it will be adjusted to the next sector boundary.
36 * If it isn't in the flash, the function will fail (return -1).
37 * Input:
38 * arg: length specification (i.e. both command arguments)
39 * Output:
40 * len: computed length for operation
41 * Return:
42 * 1: success
43 * -1: failure (bad format, bad address).
44 */
45static int sf_parse_len_arg(char *arg, ulong *len)
46{
47 char *ep;
48 char round_up_len; /* indicates if the "+length" form used */
49 ulong len_arg;
50
51 round_up_len = 0;
52 if (*arg == '+') {
53 round_up_len = 1;
54 ++arg;
55 }
56
57 len_arg = simple_strtoul(arg, &ep, 16);
58 if (ep == arg || *ep != '\0')
59 return -1;
60
61 if (round_up_len && flash->sector_size > 0)
Anton Staaf155cfb52011-09-02 13:45:28 +000062 *len = ROUND(len_arg, flash->sector_size);
Richard Retanubun334eb4b2011-02-16 16:39:44 -050063 else
64 *len = len_arg;
65
66 return 1;
67}
68
James Millera683c282012-09-28 14:28:00 +000069/**
70 * This function takes a byte length and a delta unit of time to compute the
71 * approximate bytes per second
72 *
73 * @param len amount of bytes currently processed
74 * @param start_ms start time of processing in ms
75 * @return bytes per second if OK, 0 on error
76 */
77static ulong bytes_per_second(unsigned int len, ulong start_ms)
78{
79 /* less accurate but avoids overflow */
80 if (len >= ((unsigned int) -1) / 1024)
Masahiro Yamadab4141192014-11-07 03:03:31 +090081 return len / (max(get_timer(start_ms) / 1024, 1UL));
James Millera683c282012-09-28 14:28:00 +000082 else
Masahiro Yamadab4141192014-11-07 03:03:31 +090083 return 1024 * len / max(get_timer(start_ms), 1UL);
James Millera683c282012-09-28 14:28:00 +000084}
85
Simon Glass09140112020-05-10 11:40:03 -060086static int do_spi_flash_probe(int argc, char *const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020087{
Eric Nelsonc1173bd2012-01-31 10:52:07 -070088 unsigned int bus = CONFIG_SF_DEFAULT_BUS;
89 unsigned int cs = CONFIG_SF_DEFAULT_CS;
Patrick Delaunayb0cc1b82019-02-27 15:36:44 +010090 /* In DM mode, defaults speed and mode will be taken from DT */
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020091 unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
92 unsigned int mode = CONFIG_SF_DEFAULT_MODE;
93 char *endp;
Lukasz Majewski56c40462020-06-04 23:11:53 +080094#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
Simon Glassfbb09912014-10-13 23:42:07 -060095 struct udevice *new, *bus_dev;
96 int ret;
97#else
Haavard Skinnemoenb6368462008-05-16 11:10:34 +020098 struct spi_flash *new;
Simon Glassfbb09912014-10-13 23:42:07 -060099#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200100
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700101 if (argc >= 2) {
102 cs = simple_strtoul(argv[1], &endp, 0);
103 if (*argv[1] == 0 || (*endp != 0 && *endp != ':'))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400104 return -1;
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700105 if (*endp == ':') {
106 if (endp[1] == 0)
107 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200108
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700109 bus = cs;
110 cs = simple_strtoul(endp + 1, &endp, 0);
111 if (*endp != 0)
112 return -1;
113 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200114 }
115
116 if (argc >= 3) {
117 speed = simple_strtoul(argv[2], &endp, 0);
118 if (*argv[2] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400119 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200120 }
121 if (argc >= 4) {
TsiChung Liew6e8d58d2009-06-30 14:30:19 +0000122 mode = simple_strtoul(argv[3], &endp, 16);
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200123 if (*argv[3] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400124 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200125 }
126
Lukasz Majewski56c40462020-06-04 23:11:53 +0800127#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
Simon Glassfbb09912014-10-13 23:42:07 -0600128 /* Remove the old device, otherwise probe will just be a nop */
129 ret = spi_find_bus_and_cs(bus, cs, &bus_dev, &new);
130 if (!ret) {
Stefan Roese706865a2017-03-20 12:51:48 +0100131 device_remove(new, DM_REMOVE_NORMAL);
Simon Glassfbb09912014-10-13 23:42:07 -0600132 }
133 flash = NULL;
134 ret = spi_flash_probe_bus_cs(bus, cs, speed, mode, &new);
135 if (ret) {
136 printf("Failed to initialize SPI flash at %u:%u (error %d)\n",
137 bus, cs, ret);
138 return 1;
139 }
140
Simon Glasse564f052015-03-05 12:25:20 -0700141 flash = dev_get_uclass_priv(new);
Simon Glassfbb09912014-10-13 23:42:07 -0600142#else
Heiko Schocher8ee81b72015-04-27 07:42:07 +0200143 if (flash)
144 spi_flash_free(flash);
145
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200146 new = spi_flash_probe(bus, cs, speed, mode);
Heiko Schocher8ee81b72015-04-27 07:42:07 +0200147 flash = new;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200148 if (!new) {
149 printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
150 return 1;
151 }
Simon Glassfbb09912014-10-13 23:42:07 -0600152#endif
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200153
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200154 return 0;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200155}
156
Simon Glass8d1af942011-08-22 16:03:46 -0700157/**
158 * Write a block of data to SPI flash, first checking if it is different from
159 * what is already there.
160 *
161 * If the data being written is the same, then *skipped is incremented by len.
162 *
163 * @param flash flash context pointer
164 * @param offset flash offset to write
165 * @param len number of bytes to write
166 * @param buf buffer to write from
167 * @param cmp_buf read buffer to use to compare data
168 * @param skipped Count of skipped data (incremented by this function)
169 * @return NULL if OK, else a string containing the stage which failed
170 */
171static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset,
172 size_t len, const char *buf, char *cmp_buf, size_t *skipped)
173{
Stefan Roeseed627562015-01-09 14:39:22 +0100174 char *ptr = (char *)buf;
175
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100176 debug("offset=%#x, sector_size=%#x, len=%#zx\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530177 offset, flash->sector_size, len);
Gerlando Falautob95f9582013-08-27 19:13:57 +0530178 /* Read the entire sector so to allow for rewriting */
179 if (spi_flash_read(flash, offset, flash->sector_size, cmp_buf))
Simon Glass8d1af942011-08-22 16:03:46 -0700180 return "read";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530181 /* Compare only what is meaningful (len) */
Simon Glass8d1af942011-08-22 16:03:46 -0700182 if (memcmp(cmp_buf, buf, len) == 0) {
Andreas Bießmanna97f6ef2011-12-15 09:56:53 +0100183 debug("Skip region %x size %zx: no change\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530184 offset, len);
Simon Glass8d1af942011-08-22 16:03:46 -0700185 *skipped += len;
186 return NULL;
187 }
Gerlando Falauto34888502013-07-03 20:33:57 +0200188 /* Erase the entire sector */
189 if (spi_flash_erase(flash, offset, flash->sector_size))
Simon Glass8d1af942011-08-22 16:03:46 -0700190 return "erase";
Stefan Roeseed627562015-01-09 14:39:22 +0100191 /* If it's a partial sector, copy the data into the temp-buffer */
Gerlando Falautob95f9582013-08-27 19:13:57 +0530192 if (len != flash->sector_size) {
Stefan Roeseed627562015-01-09 14:39:22 +0100193 memcpy(cmp_buf, buf, len);
194 ptr = cmp_buf;
Gerlando Falautob95f9582013-08-27 19:13:57 +0530195 }
Stefan Roeseed627562015-01-09 14:39:22 +0100196 /* Write one complete sector */
197 if (spi_flash_write(flash, offset, flash->sector_size, ptr))
198 return "write";
Gerlando Falautob95f9582013-08-27 19:13:57 +0530199
Simon Glass8d1af942011-08-22 16:03:46 -0700200 return NULL;
201}
202
203/**
204 * Update an area of SPI flash by erasing and writing any blocks which need
205 * to change. Existing blocks with the correct data are left unchanged.
206 *
207 * @param flash flash context pointer
208 * @param offset flash offset to write
209 * @param len number of bytes to write
210 * @param buf buffer to write from
211 * @return 0 if ok, 1 on error
212 */
213static int spi_flash_update(struct spi_flash *flash, u32 offset,
214 size_t len, const char *buf)
215{
216 const char *err_oper = NULL;
217 char *cmp_buf;
218 const char *end = buf + len;
219 size_t todo; /* number of bytes to do in this pass */
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000220 size_t skipped = 0; /* statistics */
James Millera683c282012-09-28 14:28:00 +0000221 const ulong start_time = get_timer(0);
222 size_t scale = 1;
223 const char *start_buf = buf;
224 ulong delta;
Simon Glass8d1af942011-08-22 16:03:46 -0700225
James Millera683c282012-09-28 14:28:00 +0000226 if (end - buf >= 200)
227 scale = (end - buf) / 100;
Ravi Babu156e96f2015-08-17 13:29:48 +0530228 cmp_buf = memalign(ARCH_DMA_MINALIGN, flash->sector_size);
Simon Glass8d1af942011-08-22 16:03:46 -0700229 if (cmp_buf) {
James Millera683c282012-09-28 14:28:00 +0000230 ulong last_update = get_timer(0);
231
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000232 for (; buf < end && !err_oper; buf += todo, offset += todo) {
Masahiro Yamadab4141192014-11-07 03:03:31 +0900233 todo = min_t(size_t, end - buf, flash->sector_size);
James Millera683c282012-09-28 14:28:00 +0000234 if (get_timer(last_update) > 100) {
235 printf(" \rUpdating, %zu%% %lu B/s",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530236 100 - (end - buf) / scale,
James Millera683c282012-09-28 14:28:00 +0000237 bytes_per_second(buf - start_buf,
238 start_time));
239 last_update = get_timer(0);
240 }
Simon Glass8d1af942011-08-22 16:03:46 -0700241 err_oper = spi_flash_update_block(flash, offset, todo,
242 buf, cmp_buf, &skipped);
243 }
244 } else {
245 err_oper = "malloc";
246 }
247 free(cmp_buf);
James Millera683c282012-09-28 14:28:00 +0000248 putc('\r');
Simon Glass8d1af942011-08-22 16:03:46 -0700249 if (err_oper) {
250 printf("SPI flash failed in %s step\n", err_oper);
251 return 1;
252 }
James Millera683c282012-09-28 14:28:00 +0000253
254 delta = get_timer(start_time);
255 printf("%zu bytes written, %zu bytes skipped", len - skipped,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530256 skipped);
James Millera683c282012-09-28 14:28:00 +0000257 printf(" in %ld.%lds, speed %ld B/s\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530258 delta / 1000, delta % 1000, bytes_per_second(len, start_time));
Kumar Gala8e8a4bc2011-10-03 04:35:47 +0000259
Simon Glass8d1af942011-08-22 16:03:46 -0700260 return 0;
261}
262
Simon Glass09140112020-05-10 11:40:03 -0600263static int do_spi_flash_read_write(int argc, char *const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200264{
265 unsigned long addr;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200266 void *buf;
267 char *endp;
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530268 int ret = 1;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200269 int dev = 0;
270 loff_t offset, len, maxsize;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200271
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200272 if (argc < 3)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400273 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200274
275 addr = simple_strtoul(argv[1], &endp, 16);
276 if (*argv[1] == 0 || *endp != 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400277 return -1;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200278
279 if (mtd_arg_off_size(argc - 2, &argv[2], &dev, &offset, &len,
280 &maxsize, MTD_DEV_TYPE_NOR, flash->size))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400281 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200282
Gerlando Falauto86493992012-04-03 04:34:13 +0000283 /* Consistency checking */
284 if (offset + len > flash->size) {
285 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530286 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000287 return 1;
288 }
289
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200290 buf = map_physmem(addr, len, MAP_WRBACK);
Liam Beguin10f087f2018-03-14 19:15:11 -0400291 if (!buf && addr) {
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200292 puts("Failed to map physical memory\n");
293 return 1;
294 }
295
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530296 if (strcmp(argv[0], "update") == 0) {
Simon Glass8d1af942011-08-22 16:03:46 -0700297 ret = spi_flash_update(flash, offset, len, buf);
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530298 } else if (strncmp(argv[0], "read", 4) == 0 ||
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530299 strncmp(argv[0], "write", 5) == 0) {
300 int read;
301
302 read = strncmp(argv[0], "read", 4) == 0;
303 if (read)
304 ret = spi_flash_read(flash, offset, len, buf);
305 else
306 ret = spi_flash_write(flash, offset, len, buf);
307
Simon Glassa7d0711a2015-06-07 08:50:32 -0600308 printf("SF: %zu bytes @ %#x %s: ", (size_t)len, (u32)offset,
309 read ? "Read" : "Written");
310 if (ret)
311 printf("ERROR %d\n", ret);
312 else
313 printf("OK\n");
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530314 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200315
316 unmap_physmem(buf, len);
317
Jagannadha Sutradharudu Teki60b66142013-05-26 14:52:52 +0530318 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200319}
320
Simon Glass09140112020-05-10 11:40:03 -0600321static int do_spi_flash_erase(int argc, char *const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200322{
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200323 int ret;
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200324 int dev = 0;
325 loff_t offset, len, maxsize;
326 ulong size;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200327
328 if (argc < 3)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400329 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200330
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200331 if (mtd_arg_off(argv[1], &dev, &offset, &len, &maxsize,
332 MTD_DEV_TYPE_NOR, flash->size))
Mike Frysinger8a07de02011-04-12 02:21:31 -0400333 return -1;
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500334
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200335 ret = sf_parse_len_arg(argv[2], &size);
Richard Retanubun334eb4b2011-02-16 16:39:44 -0500336 if (ret != 1)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400337 return -1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200338
Gerlando Falauto86493992012-04-03 04:34:13 +0000339 /* Consistency checking */
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200340 if (offset + size > flash->size) {
Gerlando Falauto86493992012-04-03 04:34:13 +0000341 printf("ERROR: attempting %s past flash size (%#x)\n",
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530342 argv[0], flash->size);
Gerlando Falauto86493992012-04-03 04:34:13 +0000343 return 1;
344 }
345
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200346 ret = spi_flash_erase(flash, offset, size);
347 printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)size, (u32)offset,
Jagannadha Sutradharudu Teki402ba1e2013-07-29 22:12:52 +0530348 ret ? "ERROR" : "OK");
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200349
Jagannadha Sutradharudu Teki96bbf552013-05-26 01:35:21 +0530350 return ret == 0 ? 0 : 1;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200351}
352
Simon Glass09140112020-05-10 11:40:03 -0600353static int do_spi_protect(int argc, char *const argv[])
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200354{
355 int ret = 0;
356 loff_t start, len;
357 bool prot = false;
358
359 if (argc != 4)
360 return -1;
361
362 if (!str2off(argv[2], &start)) {
363 puts("start sector is not a valid number\n");
364 return 1;
365 }
366
367 if (!str2off(argv[3], &len)) {
368 puts("len is not a valid number\n");
369 return 1;
370 }
371
372 if (strcmp(argv[1], "lock") == 0)
373 prot = true;
374 else if (strcmp(argv[1], "unlock") == 0)
375 prot = false;
376 else
377 return -1; /* Unknown parameter */
378
379 ret = spi_flash_protect(flash, start, len, prot);
380
381 return ret == 0 ? 0 : 1;
382}
383
Simon Glass24007272012-10-08 13:16:02 +0000384#ifdef CONFIG_CMD_SF_TEST
385enum {
386 STAGE_ERASE,
387 STAGE_CHECK,
388 STAGE_WRITE,
389 STAGE_READ,
390
391 STAGE_COUNT,
392};
393
394static char *stage_name[STAGE_COUNT] = {
395 "erase",
396 "check",
397 "write",
398 "read",
399};
400
401struct test_info {
402 int stage;
403 int bytes;
404 unsigned base_ms;
405 unsigned time_ms[STAGE_COUNT];
406};
407
408static void show_time(struct test_info *test, int stage)
409{
410 uint64_t speed; /* KiB/s */
411 int bps; /* Bits per second */
412
413 speed = (long long)test->bytes * 1000;
Simon Glassd1f22d42013-11-10 10:26:51 -0700414 if (test->time_ms[stage])
415 do_div(speed, test->time_ms[stage] * 1024);
Simon Glass24007272012-10-08 13:16:02 +0000416 bps = speed * 8;
417
Heinrich Schuchardtc6b2ea32019-01-06 12:03:37 +0100418 printf("%d %s: %u ticks, %d KiB/s %d.%03d Mbps\n", stage,
Simon Glass24007272012-10-08 13:16:02 +0000419 stage_name[stage], test->time_ms[stage],
420 (int)speed, bps / 1000, bps % 1000);
421}
422
423static void spi_test_next_stage(struct test_info *test)
424{
425 test->time_ms[test->stage] = get_timer(test->base_ms);
426 show_time(test, test->stage);
427 test->base_ms = get_timer(0);
428 test->stage++;
429}
430
431/**
432 * Run a test on the SPI flash
433 *
434 * @param flash SPI flash to use
435 * @param buf Source buffer for data to write
436 * @param len Size of data to read/write
437 * @param offset Offset within flash to check
438 * @param vbuf Verification buffer
439 * @return 0 if ok, -1 on error
440 */
Simon Glass1e7133e2013-03-11 06:08:13 +0000441static int spi_flash_test(struct spi_flash *flash, uint8_t *buf, ulong len,
442 ulong offset, uint8_t *vbuf)
Simon Glass24007272012-10-08 13:16:02 +0000443{
444 struct test_info test;
445 int i;
446
447 printf("SPI flash test:\n");
448 memset(&test, '\0', sizeof(test));
449 test.base_ms = get_timer(0);
450 test.bytes = len;
451 if (spi_flash_erase(flash, offset, len)) {
452 printf("Erase failed\n");
453 return -1;
454 }
455 spi_test_next_stage(&test);
456
457 if (spi_flash_read(flash, offset, len, vbuf)) {
458 printf("Check read failed\n");
459 return -1;
460 }
461 for (i = 0; i < len; i++) {
462 if (vbuf[i] != 0xff) {
463 printf("Check failed at %d\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900464 print_buffer(i, vbuf + i, 1,
465 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000466 return -1;
467 }
468 }
469 spi_test_next_stage(&test);
470
471 if (spi_flash_write(flash, offset, len, buf)) {
472 printf("Write failed\n");
473 return -1;
474 }
475 memset(vbuf, '\0', len);
476 spi_test_next_stage(&test);
477
478 if (spi_flash_read(flash, offset, len, vbuf)) {
479 printf("Read failed\n");
480 return -1;
481 }
482 spi_test_next_stage(&test);
483
484 for (i = 0; i < len; i++) {
485 if (buf[i] != vbuf[i]) {
486 printf("Verify failed at %d, good data:\n", i);
Masahiro Yamadab4141192014-11-07 03:03:31 +0900487 print_buffer(i, buf + i, 1,
488 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000489 printf("Bad data:\n");
Masahiro Yamadab4141192014-11-07 03:03:31 +0900490 print_buffer(i, vbuf + i, 1,
491 min_t(uint, len - i, 0x40), 0);
Simon Glass24007272012-10-08 13:16:02 +0000492 return -1;
493 }
494 }
495 printf("Test passed\n");
496 for (i = 0; i < STAGE_COUNT; i++)
497 show_time(&test, i);
498
499 return 0;
500}
501
Simon Glass09140112020-05-10 11:40:03 -0600502static int do_spi_flash_test(int argc, char *const argv[])
Simon Glass24007272012-10-08 13:16:02 +0000503{
504 unsigned long offset;
505 unsigned long len;
Simon Glassd1f22d42013-11-10 10:26:51 -0700506 uint8_t *buf, *from;
Simon Glass24007272012-10-08 13:16:02 +0000507 char *endp;
Simon Glass1e7133e2013-03-11 06:08:13 +0000508 uint8_t *vbuf;
Simon Glass24007272012-10-08 13:16:02 +0000509 int ret;
510
Simon Glassd1f22d42013-11-10 10:26:51 -0700511 if (argc < 3)
512 return -1;
Simon Glass24007272012-10-08 13:16:02 +0000513 offset = simple_strtoul(argv[1], &endp, 16);
514 if (*argv[1] == 0 || *endp != 0)
515 return -1;
516 len = simple_strtoul(argv[2], &endp, 16);
517 if (*argv[2] == 0 || *endp != 0)
518 return -1;
519
Ravi Babu156e96f2015-08-17 13:29:48 +0530520 vbuf = memalign(ARCH_DMA_MINALIGN, len);
Simon Glass24007272012-10-08 13:16:02 +0000521 if (!vbuf) {
Simon Glassd1f22d42013-11-10 10:26:51 -0700522 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000523 return 1;
524 }
Ravi Babu156e96f2015-08-17 13:29:48 +0530525 buf = memalign(ARCH_DMA_MINALIGN, len);
Simon Glass24007272012-10-08 13:16:02 +0000526 if (!buf) {
527 free(vbuf);
Simon Glassd1f22d42013-11-10 10:26:51 -0700528 printf("Cannot allocate memory (%lu bytes)\n", len);
Simon Glass24007272012-10-08 13:16:02 +0000529 return 1;
530 }
531
Simon Glassd1f22d42013-11-10 10:26:51 -0700532 from = map_sysmem(CONFIG_SYS_TEXT_BASE, 0);
533 memcpy(buf, from, len);
Simon Glass24007272012-10-08 13:16:02 +0000534 ret = spi_flash_test(flash, buf, len, offset, vbuf);
535 free(vbuf);
536 free(buf);
537 if (ret) {
538 printf("Test failed\n");
539 return 1;
540 }
541
542 return 0;
543}
544#endif /* CONFIG_CMD_SF_TEST */
545
Simon Glass09140112020-05-10 11:40:03 -0600546static int do_spi_flash(struct cmd_tbl *cmdtp, int flag, int argc,
547 char *const argv[])
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200548{
549 const char *cmd;
Mike Frysinger8a07de02011-04-12 02:21:31 -0400550 int ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200551
552 /* need at least two arguments */
553 if (argc < 2)
554 goto usage;
555
556 cmd = argv[1];
Mike Frysinger8a07de02011-04-12 02:21:31 -0400557 --argc;
558 ++argv;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200559
Mike Frysinger8a07de02011-04-12 02:21:31 -0400560 if (strcmp(cmd, "probe") == 0) {
561 ret = do_spi_flash_probe(argc, argv);
562 goto done;
563 }
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200564
565 /* The remaining commands require a selected device */
566 if (!flash) {
567 puts("No SPI flash selected. Please run `sf probe'\n");
568 return 1;
569 }
570
Simon Glass8d1af942011-08-22 16:03:46 -0700571 if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0 ||
572 strcmp(cmd, "update") == 0)
Mike Frysinger8a07de02011-04-12 02:21:31 -0400573 ret = do_spi_flash_read_write(argc, argv);
574 else if (strcmp(cmd, "erase") == 0)
575 ret = do_spi_flash_erase(argc, argv);
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200576 else if (strcmp(cmd, "protect") == 0)
577 ret = do_spi_protect(argc, argv);
Simon Glass24007272012-10-08 13:16:02 +0000578#ifdef CONFIG_CMD_SF_TEST
579 else if (!strcmp(cmd, "test"))
580 ret = do_spi_flash_test(argc, argv);
581#endif
Mike Frysinger8a07de02011-04-12 02:21:31 -0400582 else
583 ret = -1;
584
585done:
586 if (ret != -1)
587 return ret;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200588
589usage:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000590 return CMD_RET_USAGE;
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200591}
592
Simon Glass24007272012-10-08 13:16:02 +0000593#ifdef CONFIG_CMD_SF_TEST
594#define SF_TEST_HELP "\nsf test offset len " \
595 "- run a very basic destructive test"
596#else
597#define SF_TEST_HELP
598#endif
599
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200600U_BOOT_CMD(
601 sf, 5, 1, do_spi_flash,
Peter Tyser2fb26042009-01-27 18:03:12 -0600602 "SPI flash sub-system",
Eric Nelsonc1173bd2012-01-31 10:52:07 -0700603 "probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n"
Haavard Skinnemoenb6368462008-05-16 11:10:34 +0200604 " and chip select\n"
Heiko Schocher2ec1a402015-04-27 07:42:06 +0200605 "sf read addr offset|partition len - read `len' bytes starting at\n"
606 " `offset' or from start of mtd\n"
607 " `partition'to memory at `addr'\n"
608 "sf write addr offset|partition len - write `len' bytes from memory\n"
609 " at `addr' to flash at `offset'\n"
610 " or to start of mtd `partition'\n"
611 "sf erase offset|partition [+]len - erase `len' bytes from `offset'\n"
612 " or from start of mtd `partition'\n"
613 " `+len' round up `len' to block size\n"
614 "sf update addr offset|partition len - erase and write `len' bytes from memory\n"
615 " at `addr' to flash at `offset'\n"
616 " or to start of mtd `partition'\n"
Fabio Estevamc3c016c2015-11-05 12:43:42 -0200617 "sf protect lock/unlock sector len - protect/unprotect 'len' bytes starting\n"
618 " at address 'sector'\n"
Simon Glass24007272012-10-08 13:16:02 +0000619 SF_TEST_HELP
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200620);