linux-stable/drivers/mtd
Takahiro Kuwano c87c9b11c5
mtd: spi-nor: spansion: Determine current address mode
Internal address mode (3- or 4-byte) affects to the address length in
Read Any Reg op. Read Any Reg op is used in SMPT parse and other setup
functions. Current driver assumes that address mode is factory default
but users can change it via volatile and non-volatile registers.

Current address mode can be checked by CFR2V[7] but Read Any Reg op is
needed to read CFR2V (chicken-and-egg).

Introduce a way to determine current address mode by comparing status
register 1 values read by different address length.

Suggested-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Link: https://lore.kernel.org/r/20230331074606.3559258-11-tudor.ambarus@linaro.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
2023-04-04 09:43:53 +03:00
..
chips mtd: cfi_cmdset_0002: Rename chip_ready variables 2022-04-28 10:17:22 +02:00
devices mtd: dataflash: remove duplicate SPI ID table 2023-01-02 12:15:57 +01:00
hyperbus memory: renesas-rpc-if: Remove Runtime PM wrappers 2023-01-23 11:48:00 +01:00
lpddr mtd: lpddr2_nvm: Fix possible null-ptr-deref 2022-11-17 21:59:03 +01:00
maps mtd: maps: pismo: Convert to i2c's .probe_new() 2023-03-09 21:58:49 +01:00
nand MTD changes: 2023-02-25 15:05:08 -08:00
parsers SPI NOR changes: 2023-02-23 10:27:32 +01:00
spi-nor mtd: spi-nor: spansion: Determine current address mode 2023-04-04 09:43:53 +03:00
tests treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
ubi ubi: block: Fix missing blk_mq_end_request 2023-03-11 09:00:25 -08:00
ftl.c mtd: ftl: use container_of() rather than cast 2022-09-19 18:14:53 +02:00
inftlcore.c mtd: inftlcore: fix repeated words in comments 2022-11-07 17:14:21 +01:00
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_blkdevs.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
mtdblock.c mtdblock: warn if opened on NAND 2022-04-25 10:43:12 +02:00
mtdblock_ro.c mtdblock: Warn if added for a NAND device 2021-08-17 18:41:59 +02:00
mtdchar.c mtdchar: add MEMREAD ioctl 2022-09-21 10:38:11 +02:00
mtdconcat.c mtd: fix repeated word in comment 2022-09-20 10:40:30 +02:00
mtdcore.c mtd: core: Fix refcount error in del_mtd_device() 2022-11-24 12:32:16 +01:00
mtdcore.h
mtdoops.c mtd: mtdoops: panic caused mtdoops to call mtdoops_erase function immediately 2022-11-07 17:08:00 +01:00
mtdpart.c mtd: mtdpart: Don't create platform device that'll never probe 2023-02-08 13:37:55 +01:00
mtdpstore.c mtd: Fix a typo in a comment 2022-09-19 18:14:53 +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
ssfdc.c mtd: always initialize 'stats' in struct mtd_oob_ops 2022-09-21 10:38:07 +02:00