Lines Matching +full:pre +full:- +full:packaged
1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright (C) 2003-2005 SAN People (Pty) Ltd
29 * Sometimes DataFlash is packaged in MMC-format cards, although the
58 #define OP_MWRITE_BUFFER1 0x88 /* sector must be pre-erased */
59 #define OP_MWRITE_BUFFER2 0x89 /* sector must be pre-erased */
61 /* write to buffer, then write-erase to flash */
69 /* read flash to buffer, then write-erase to flash */
74 * serial number and OTP bits; and per-sector writeprotect.
137 * This usually takes 5-20 msec or so; more for sector erase.
146 dev_dbg(&spi->dev, "status %d?\n", status); in dataflash_waitready()
164 struct dataflash *priv = mtd->priv; in dataflash_erase()
165 struct spi_device *spi = priv->spi; in dataflash_erase()
168 unsigned blocksize = priv->page_size << 3; in dataflash_erase()
172 dev_dbg(&spi->dev, "erase addr=0x%llx len 0x%llx\n", in dataflash_erase()
173 (long long)instr->addr, (long long)instr->len); in dataflash_erase()
175 div_u64_rem(instr->len, priv->page_size, &rem); in dataflash_erase()
177 return -EINVAL; in dataflash_erase()
178 div_u64_rem(instr->addr, priv->page_size, &rem); in dataflash_erase()
180 return -EINVAL; in dataflash_erase()
184 x.tx_buf = command = priv->command; in dataflash_erase()
188 mutex_lock(&priv->lock); in dataflash_erase()
189 while (instr->len > 0) { in dataflash_erase()
197 pageaddr = div_u64(instr->addr, priv->page_size); in dataflash_erase()
198 do_block = (pageaddr & 0x7) == 0 && instr->len >= blocksize; in dataflash_erase()
199 pageaddr = pageaddr << priv->page_offset; in dataflash_erase()
206 dev_dbg(&spi->dev, "ERASE %s: (%x) %x %x %x [%i]\n", in dataflash_erase()
215 dev_err(&spi->dev, "erase %x, err %d\n", in dataflash_erase()
217 /* REVISIT: can retry instr->retries times; or in dataflash_erase()
218 * giveup and instr->fail_addr = instr->addr; in dataflash_erase()
224 instr->addr += blocksize; in dataflash_erase()
225 instr->len -= blocksize; in dataflash_erase()
227 instr->addr += priv->page_size; in dataflash_erase()
228 instr->len -= priv->page_size; in dataflash_erase()
231 mutex_unlock(&priv->lock); in dataflash_erase()
246 struct dataflash *priv = mtd->priv; in dataflash_read()
253 dev_dbg(&priv->spi->dev, "read 0x%x..0x%x\n", in dataflash_read()
257 addr = (((unsigned)from / priv->page_size) << priv->page_offset) in dataflash_read()
258 + ((unsigned)from % priv->page_size); in dataflash_read()
260 command = priv->command; in dataflash_read()
262 dev_dbg(&priv->spi->dev, "READ: (%x) %x %x %x\n", in dataflash_read()
275 mutex_lock(&priv->lock); in dataflash_read()
287 status = spi_sync(priv->spi, &msg); in dataflash_read()
288 mutex_unlock(&priv->lock); in dataflash_read()
291 *retlen = msg.actual_length - 8; in dataflash_read()
294 dev_dbg(&priv->spi->dev, "read %x..%x --> %d\n", in dataflash_read()
310 struct dataflash *priv = mtd->priv; in dataflash_write()
311 struct spi_device *spi = priv->spi; in dataflash_write()
317 int status = -EINVAL; in dataflash_write()
320 dev_dbg(&spi->dev, "write 0x%x..0x%x\n", in dataflash_write()
325 x[0].tx_buf = command = priv->command; in dataflash_write()
329 pageaddr = ((unsigned)to / priv->page_size); in dataflash_write()
330 offset = ((unsigned)to % priv->page_size); in dataflash_write()
331 if (offset + len > priv->page_size) in dataflash_write()
332 writelen = priv->page_size - offset; in dataflash_write()
336 mutex_lock(&priv->lock); in dataflash_write()
338 dev_dbg(&spi->dev, "write @ %i:%i len=%i\n", in dataflash_write()
350 * Two persistent bits per page, plus a per-sector counter, in dataflash_write()
354 * support boot-from-DataFlash.) in dataflash_write()
357 addr = pageaddr << priv->page_offset; in dataflash_write()
360 if (writelen != priv->page_size) { in dataflash_write()
366 dev_dbg(&spi->dev, "TRANSFER: (%x) %x %x %x\n", in dataflash_write()
371 dev_dbg(&spi->dev, "xfer %u -> %d\n", in dataflash_write()
374 (void) dataflash_waitready(priv->spi); in dataflash_write()
384 dev_dbg(&spi->dev, "PROGRAM: (%x) %x %x %x\n", in dataflash_write()
393 dev_dbg(&spi->dev, "pgm %u/%u -> %d\n", in dataflash_write()
396 (void) dataflash_waitready(priv->spi); in dataflash_write()
402 addr = pageaddr << priv->page_offset; in dataflash_write()
408 dev_dbg(&spi->dev, "COMPARE: (%x) %x %x %x\n", in dataflash_write()
413 dev_dbg(&spi->dev, "compare %u -> %d\n", in dataflash_write()
416 status = dataflash_waitready(priv->spi); in dataflash_write()
420 dev_err(&spi->dev, "compare page %u, err %d\n", in dataflash_write()
423 status = -EIO; in dataflash_write()
430 remaining = remaining - writelen; in dataflash_write()
436 if (remaining > priv->page_size) in dataflash_write()
437 writelen = priv->page_size; in dataflash_write()
441 mutex_unlock(&priv->lock); in dataflash_write()
454 * Unless the user block changed from all-ones, we can't in dataflash_get_otp_info()
457 info->start = 0; in dataflash_get_otp_info()
458 info->length = 64; in dataflash_get_otp_info()
459 info->locked = 1; in dataflash_get_otp_info()
474 return -EINVAL; in otp_read()
477 len = 64 - off; in otp_read()
484 return -ENOMEM; in otp_read()
486 /* OUT: OP_READ_SECURITY, 3 don't-care bytes, zeroes in otp_read()
512 struct dataflash *priv = mtd->priv; in dataflash_read_fact_otp()
515 /* 64 bytes, from 0..63 ... start at 64 on-chip */ in dataflash_read_fact_otp()
516 mutex_lock(&priv->lock); in dataflash_read_fact_otp()
517 status = otp_read(priv->spi, 64, buf, from, len); in dataflash_read_fact_otp()
518 mutex_unlock(&priv->lock); in dataflash_read_fact_otp()
529 struct dataflash *priv = mtd->priv; in dataflash_read_user_otp()
532 /* 64 bytes, from 0..63 ... start at 0 on-chip */ in dataflash_read_user_otp()
533 mutex_lock(&priv->lock); in dataflash_read_user_otp()
534 status = otp_read(priv->spi, 0, buf, from, len); in dataflash_read_user_otp()
535 mutex_unlock(&priv->lock); in dataflash_read_user_otp()
550 struct dataflash *priv = mtd->priv; in dataflash_write_user_otp()
564 len = 64 - from; in dataflash_write_user_otp()
566 /* OUT: OP_WRITE_SECURITY, 3 zeroes, 64 data-or-zero bytes in dataflash_write_user_otp()
571 return -ENOMEM; in dataflash_write_user_otp()
585 mutex_lock(&priv->lock); in dataflash_write_user_otp()
586 dataflash_waitready(priv->spi); in dataflash_write_user_otp()
587 status = spi_sync(priv->spi, &m); in dataflash_write_user_otp()
588 mutex_unlock(&priv->lock); in dataflash_write_user_otp()
601 device->_get_fact_prot_info = dataflash_get_otp_info; in otp_setup()
602 device->_read_fact_prot_reg = dataflash_read_fact_otp; in otp_setup()
603 device->_get_user_prot_info = dataflash_get_otp_info; in otp_setup()
604 device->_read_user_prot_reg = dataflash_read_user_otp; in otp_setup()
610 device->_write_user_prot_reg = dataflash_write_user_otp; in otp_setup()
634 struct flash_platform_data *pdata = dev_get_platdata(&spi->dev); in add_dataflash_otp()
640 return -ENOMEM; in add_dataflash_otp()
642 mutex_init(&priv->lock); in add_dataflash_otp()
643 priv->spi = spi; in add_dataflash_otp()
644 priv->page_size = pagesize; in add_dataflash_otp()
645 priv->page_offset = pageoffset; in add_dataflash_otp()
648 sprintf(priv->name, "spi%d.%d-%s", in add_dataflash_otp()
649 spi->master->bus_num, spi->chip_select, in add_dataflash_otp()
652 device = &priv->mtd; in add_dataflash_otp()
653 device->name = (pdata && pdata->name) ? pdata->name : priv->name; in add_dataflash_otp()
654 device->size = nr_pages * pagesize; in add_dataflash_otp()
655 device->erasesize = pagesize; in add_dataflash_otp()
656 device->writesize = pagesize; in add_dataflash_otp()
657 device->type = MTD_DATAFLASH; in add_dataflash_otp()
658 device->flags = MTD_WRITEABLE; in add_dataflash_otp()
659 device->_erase = dataflash_erase; in add_dataflash_otp()
660 device->_read = dataflash_read; in add_dataflash_otp()
661 device->_write = dataflash_write; in add_dataflash_otp()
662 device->priv = priv; in add_dataflash_otp()
664 device->dev.parent = &spi->dev; in add_dataflash_otp()
665 mtd_set_of_node(device, spi->dev.of_node); in add_dataflash_otp()
670 dev_info(&spi->dev, "%s (%lld KBytes) pagesize %d bytes%s\n", in add_dataflash_otp()
671 name, (long long)((device->size + 1023) >> 10), in add_dataflash_otp()
676 pdata ? pdata->parts : NULL, in add_dataflash_otp()
677 pdata ? pdata->nr_parts : 0); in add_dataflash_otp()
717 * non-2^N byte page size can't name exact chip revisions without
720 * These newer chips also support 128-byte security registers (with
721 * 64 bytes one-time-programmable) and software write-protection.
759 if (use_extid && !(info->flags & SUP_EXTID)) in jedec_lookup()
762 if (info->jedec_id == jedec) { in jedec_lookup()
763 dev_dbg(&spi->dev, "OTP, sector protect%s\n", in jedec_lookup()
764 (info->flags & SUP_POW2PS) ? in jedec_lookup()
766 if (info->flags & SUP_POW2PS) { in jedec_lookup()
769 dev_dbg(&spi->dev, "status error %d\n", in jedec_lookup()
774 if (info->flags & IS_POW2PS) in jedec_lookup()
777 if (!(info->flags & IS_POW2PS)) in jedec_lookup()
785 return ERR_PTR(-ENODEV); in jedec_lookup()
799 * string for after vendor-specific data, after the three bytes in jedec_probe()
808 dev_dbg(&spi->dev, "error %d reading JEDEC ID\n", ret); in jedec_probe()
836 dev_warn(&spi->dev, "JEDEC id %016llx not handled\n", jedec); in jedec_probe()
837 return ERR_PTR(-ENODEV); in jedec_probe()
870 return add_dataflash_otp(spi, info->name, info->nr_pages, in dataflash_probe()
871 info->pagesize, info->pageoffset, in dataflash_probe()
872 (info->flags & SUP_POW2PS) ? 'd' : 'c'); in dataflash_probe()
880 dev_dbg(&spi->dev, "status error %d\n", status); in dataflash_probe()
882 status = -ENODEV; in dataflash_probe()
887 * board setup should have set spi->max_speed_max to in dataflash_probe()
915 dev_info(&spi->dev, "unsupported device (%x)\n", in dataflash_probe()
917 status = -ENODEV; in dataflash_probe()
921 dev_dbg(&spi->dev, "add_dataflash --> %d\n", status); in dataflash_probe()
930 dev_dbg(&spi->dev, "remove\n"); in dataflash_remove()
932 WARN_ON(mtd_device_unregister(&flash->mtd)); in dataflash_remove()