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linux/drivers/mtd
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Linus Walleij 83030b9faa mtd: rawnand: fsmc: Default to autodetect buswidth 
commit b8df622cf7 upstream.

If you don't specify buswidth 2 (16 bits) in the device
tree, FSMC doesn't even probe anymore:

fsmc-nand 10100000.flash: FSMC device partno 090,
  manufacturer 80, revision 00, config 00
nand: device found, Manufacturer ID: 0x20, Chip ID: 0xb1
nand: ST Micro 10100000.flash
nand: bus width 8 instead of 16 bits
nand: No NAND device found
fsmc-nand 10100000.flash: probe with driver fsmc-nand failed
  with error -22

With this patch to use autodetection unless buswidth is
specified, the device is properly detected again:

fsmc-nand 10100000.flash: FSMC device partno 090,
  manufacturer 80, revision 00, config 00
nand: device found, Manufacturer ID: 0x20, Chip ID: 0xb1
nand: ST Micro NAND 128MiB 1,8V 16-bit
nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
fsmc-nand 10100000.flash: Using 1-bit HW ECC scheme
Scanning device for bad blocks

I don't know where or how this happened, I think some change
in the nand core.

Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-19 16:23:16 +02:00
..
chips mtd: cfi_cmdset_0001: Byte swap OTP info 2023-11-28 17:07:14 +00:00
devices mtd: powernv: Add check devm_kasprintf() returned value 2024-10-17 15:20:49 +02:00
hyperbus mtd: hyperbus: hbmc-am654: fix an OF node reference leak 2025-02-21 13:49:19 +01:00
lpddr mtd: lpddr2_nvm: Fix possible null-ptr-deref 2022-12-31 13:32:12 +01:00
maps mtd: maps: physmap-core: fix flash size larger than 32-bit 2024-03-26 18:20:50 -04:00
nand mtd: rawnand: fsmc: Default to autodetect buswidth 2025-10-19 16:23:16 +02:00
parsers mtd: partitions: redboot: Added conversion of operands to a larger type 2024-07-05 09:31:48 +02:00
spi-nor mtd: spi-nor: Fix spi_nor_try_unlock_all() 2025-08-28 16:26:07 +02:00
tests mtd: make mtd_test.c a separate module 2024-08-03 08:49:20 +02:00
ubi ubi: fastmap: Fix duplicate slab cache names while attaching 2024-12-14 19:54:08 +01:00
ftl.c mtd: fix possible integer overflow in erase_xfer() 2025-08-15 12:05:01 +02:00
inftlcore.c mtd: inftlcore: Add error check for inftl_read_oob() 2025-04-25 10:43:41 +02:00
inftlmount.c mtd: inftl: remove unnecessary oom message 2021-06-11 20:44:21 +02:00
Kconfig mtdblock: Add comment about UBI block devices 2021-08-06 22:05:13 +02:00
Makefile mtd: Support kmsg dumper based on pstore/blk 2020-05-31 19:49:01 -07:00
mtd_blkdevs.c mtd: Fix gluebi NULL pointer dereference caused by ftl notifier 2024-01-25 15:27:21 -08:00
mtdblock.c mtdblock: tolerate corrected bit-flips 2023-04-20 12:35:06 +02:00
mtdblock_ro.c mtdblock: Warn if added for a NAND device 2021-08-17 18:41:59 +02:00
mtdchar.c mtdchar: mark bits of ioctl handler noinline 2023-06-09 10:34:24 +02:00
mtdconcat.c mtd: fix repeated word in comment 2022-09-20 10:40:30 +02:00
mtdcore.c mtd: core: Report error if first mtd_otp_size() call fails in mtd_otp_nvmem_add() 2024-06-12 11:03:22 +02:00
mtdcore.h mtd: Provide fs_context-aware mount_mtd() replacement 2019-09-05 14:34:23 -04:00
mtdoops.c mtd: mtdoops: Add a timestamp to the mtdoops header. 2022-04-26 09:27:12 +02:00
mtdpart.c mtd: mtdpart: Don't create platform device that'll never probe 2023-03-10 09:33:38 +01:00
mtdpstore.c mtd: Replace kcalloc() with devm_kcalloc() 2025-04-25 10:43:38 +02:00
mtdsuper.c mm: don't include <linux/blkdev.h> in <linux/backing-dev.h> 2021-10-18 06:17:01 -06:00
mtdswap.c mtd: always initialize 'stats' in struct mtd_oob_ops 2022-09-21 10:38:07 +02:00
nftlcore.c mtd: always initialize 'stats' in struct mtd_oob_ops 2022-09-21 10:38:07 +02:00
nftlmount.c mtd: nftl: remove unnecessary oom message 2021-06-11 20:43:26 +02:00
rfd_ftl.c mtd/rfd_ftl: don't cast away the type when calling add_mtd_blktrans_dev 2021-08-23 10:01:06 +02:00
sm_ftl.c mtd: always initialize 'stats' in struct mtd_oob_ops 2022-09-21 10:38:07 +02:00
sm_ftl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ssfdc.c mtd: always initialize 'stats' in struct mtd_oob_ops 2022-09-21 10:38:07 +02:00