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linux/drivers/mtd
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Linus Walleij c2c8a3bfd8 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 16:33:53 +02:00
..
chips mtd: add missing MODULE_DESCRIPTION() macros 2024-07-01 11:56:28 +02:00
devices mtd: powernv: Add check devm_kasprintf() returned value 2024-09-06 17:10:08 +02:00
hyperbus mtd: hyperbus: hbmc-am654: fix an OF node reference leak 2025-02-08 09:57:54 +01:00
lpddr mtd: lpddr2_nvm: Convert to platform remove callback returning void 2023-10-16 10:56:48 +02:00
maps mtd: add missing MODULE_DESCRIPTION() macros 2024-07-01 11:56:28 +02:00
nand mtd: rawnand: fsmc: Default to autodetect buswidth 2025-10-19 16:33:53 +02:00
parsers mtd: parsers: bcm47xxpart: make read-only array possible_nvram_sizes static const 2024-08-23 19:25:49 +02:00
spi-nor mtd: spi-nor: Fix spi_nor_try_unlock_all() 2025-08-28 16:30:58 +02:00
tests mtd: make mtd_test.c a separate module 2024-07-01 11:56:25 +02:00
ubi ubi: Add a check for ubi_num 2025-02-17 10:05:24 +01:00
ftl.c mtd: fix possible integer overflow in erase_xfer() 2025-08-15 12:13:49 +02:00
inftlcore.c mtd: inftlcore: Add error check for inftl_read_oob() 2025-04-20 10:15:45 +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 block: move the add_random flag to queue_limits 2024-06-19 07:58:28 -06:00
mtdblock.c mtdblock: make warning messages ratelimited 2023-07-27 17:16:14 +02:00
mtdblock_ro.c mtdblock: make warning messages ratelimited 2023-07-27 17:16:14 +02:00
mtdchar.c mtdchar: mark bits of ioctl handler noinline 2023-06-01 18:12:31 +02:00
mtdconcat.c mtd: concat: Use kmemdup_array instead of kmemdup for multiple allocation 2024-08-23 19:25:51 +02:00
mtdcore.c * MTD 2024-05-16 09:04:52 -07:00
mtdcore.h mtd: use refcount to prevent corruption 2023-07-12 13:30:08 +02:00
mtdoops.c mtd: mtdoops: Fix kmsgdump parameter renaming. 2024-07-22 17:56:22 +02:00
mtdpart.c mtd: mtdpart: check for subpartitions parsing result 2023-10-16 10:50:32 +02:00
mtdpstore.c mtd: Replace kcalloc() with devm_kcalloc() 2025-04-20 10:15:39 +02:00
mtdsuper.c mtd: key superblock by device number 2023-08-31 12:47:15 +02:00
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: sm_ftl: Fix typos in comments 2023-06-22 23:00:43 +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: ssfdc: Improve a size determination in ssfdcr_add_mtd() 2024-02-05 14:22:39 +01:00