android_kernel_motorola_sm6375/drivers/mtd
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Christophe Kerello ddd9320a5a mtd: rawnand: stm32_fmc2: avoid to lock the CPU bus
commit 4114b17af41272e14939b000ce8f3ed7ba937e3c upstream.

We are currently using nand_soft_waitrdy to poll the status of the NAND
flash. FMC2 enables the wait feature bit (this feature is mandatory for
the sequencer mode). By enabling this feature, we can't poll the status
of the NAND flash, the read status command is stucked in FMC2 pipeline
until R/B# signal is high, and locks the CPU bus.
To avoid to lock the CPU bus, we poll FMC2 ISR register. This register
reports the status of the R/B# signal.

Fixes: 2cd457f328 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver")
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17 19:48:17 +01:00
..
chips mtd: cfi_cmdset_0002: Fix do_erase_chip() to get chip as erasing mode 2019-09-15 23:51:07 +02:00
devices mtd: spear_smi: Fix Write Burst mode 2019-12-17 19:55:53 +01:00
hyperbus mtd: hyperbus: fix dependency and build error 2019-08-29 14:31:23 +02:00
lpddr treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
maps mtd: pismo: Simplify getting the adapter of a client 2019-09-15 23:50:39 +02:00
nand mtd: rawnand: stm32_fmc2: avoid to lock the CPU bus 2020-01-17 19:48:17 +01:00
parsers mtd: parsers: Move CMDLINE parser 2019-09-15 23:50:50 +02:00
spi-nor mtd: spi-nor: Fix direction of the write_sr() transfer 2019-10-04 18:09:01 +02:00
tests treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 326 2019-06-05 17:37:06 +02:00
ubi ubi: block: Warn if volume size is not multiple of 512 2019-09-15 22:12:49 +02:00
ftl.c
inftlcore.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
inftlmount.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
Kconfig mtd: parsers: Move CMDLINE parser 2019-09-15 23:50:50 +02:00
Makefile mtd: parsers: Move CMDLINE parser 2019-09-15 23:50:50 +02:00
mtd_blkdevs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
mtdblock.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
mtdblock_ro.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
mtdchar.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
mtdconcat.c mtd: concat: implement _is_locked mtd operation 2019-07-07 20:39:16 +02:00
mtdcore.c mtd: mtdcore: add debugfs nodes for querying the flash name and id 2019-08-29 10:36:47 +03:00
mtdcore.h mtd: Provide fs_context-aware mount_mtd() replacement 2019-09-05 14:34:23 -04:00
mtdoops.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
mtdpart.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
mtdsuper.c mtd: Kill mount_mtd() 2019-09-05 14:34:26 -04:00
mtdswap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
nftlcore.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
nftlmount.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
rfd_ftl.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
sm_ftl.c mtd: sm_ftl: Fix memory leak in sm_init_zone() error path 2019-09-15 23:50:50 +02:00
sm_ftl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ssfdc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00