Kamal Dasu a4bfcab309 mtd: nand: brcmnand: Check flash #WP pin status before nand erase/program ...

commit 9d2ee0a60b upstream.

On brcmnand controller v6.x and v7.x, the #WP pin is controlled through
the NAND_WP bit in CS_SELECT register.

The driver currently assumes that toggling the #WP pin is
instantaneously enabling/disabling write-protection, but it actually
takes some time to propagate the new state to the internal NAND chip
logic. This behavior is sometime causing data corruptions when an
erase/program operation is executed before write-protection has really
been disabled.

Fixes: 27c5b17cd1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-07-05 14:40:31 +02:00

..

chips

mtd: cfi_cmdset_0020: Deinline do_write_buffer, save 5316 bytes

2016-07-09 18:53:33 -07:00

devices

Merge tag 'for-linus-20160801' of git://git.infradead.org/linux-mtd

2016-08-02 17:05:11 -04:00

lpddr

mtd: lpddr: show parent device in sysfs

2015-10-13 09:21:17 -07:00

maps

mtd: pmcmsp: use kstrndup instead of kmalloc+strncpy

2017-03-18 19:14:28 +08:00

nand

mtd: nand: brcmnand: Check flash #WP pin status before nand erase/program

2017-07-05 14:40:31 +02:00

onenand

mtd: silence some uninitialized variable warnings

2016-07-09 18:14:39 -07:00

spi-nor

mtd: spi-nor: fix spansion quad enable

2017-06-29 13:00:31 +02:00

tests

mtd: nandbiterrs: Support for NAND biterrors test on platforms without raw write

2016-07-11 08:40:13 +02:00

ubi

ubi/upd: Always flush after prepared for an update

2017-04-27 09:10:38 +02:00

afs.c

mtd: partitions: make parsers return 'const' partition arrays

2015-12-09 10:21:57 -08:00

ar7part.c

mtd: partitions: make parsers return 'const' partition arrays

2015-12-09 10:21:57 -08:00

bcm47xxpart.c

mtd: bcm47xxpart: fix parsing first block after aligned TRX

2017-04-18 07:11:47 +02:00

bcm63xxpart.c

mtd: bcm63xxpart: give width specifier an 'int', not 'size_t'

2016-03-07 13:13:58 -08:00

cmdlinepart.c

mtd: partitions: make parsers return 'const' partition arrays

2015-12-09 10:21:57 -08:00

ftl.c

mtd: ftl: use swap() in copy_erase_unit()

2015-12-18 16:56:07 -08:00

inftlcore.c

mtd: nand: add a helper to detect the nand type

2013-10-27 16:27:06 -07:00

inftlmount.c

mtd: intflmount: fix off by one error in INFTL_dumpVUchains()

2014-11-05 13:19:21 -08:00

Kconfig

mtd: bcm63xxpart: Remove dependency on mach-bcm63xx

2016-02-12 10:27:48 -08:00

Makefile

mtd: spi-nor: shorten Kconfig naming

2014-04-14 11:23:01 -07:00

mtd_blkdevs.c

block: convert to device_add_disk()

2016-06-27 12:26:08 -07:00

mtdblock_ro.c

mtd: Move major number definitions to major.h

2013-11-06 23:32:59 -08:00

mtdblock.c

mtd: mtdblock: remove the needless mtdblks_lock

2015-01-07 12:51:56 -08:00

mtdchar.c

mtd: kill the nand_ecclayout struct

2016-05-05 23:51:51 +02:00

mtdconcat.c

mtd: create an mtd_ooblayout_ops struct to ease ECC layout definition

2016-04-19 22:05:55 +02:00

mtdcore.c

treewide: remove redundant #include <linux/kconfig.h>

2016-10-11 15:06:33 -07:00

mtdcore.h

mtd: partitions: support a cleanup callback for parsers

2015-12-09 14:57:44 -08:00

mtdoops.c

mtdoops: don't erase flash at each boot

2012-11-15 15:37:51 +02:00

mtdpart.c

treewide: remove redundant #include <linux/kconfig.h>

2016-10-11 15:06:33 -07:00

mtdsuper.c

mtd: Move major number definitions to major.h

2013-11-06 23:32:59 -08:00

mtdswap.c

mtd: mtdswap: remove useless if (!mtd->ecclayout) test

2016-03-07 16:23:09 -08:00

nftlcore.c

mtd: nand: add a helper to detect the nand type

2013-10-27 16:27:06 -07:00

nftlmount.c

mtd: nftl: reorganize operations in condition check

2015-01-09 15:26:29 -08:00

ofpart.c

mtd: partitions: make parsers return 'const' partition arrays

2015-12-09 10:21:57 -08:00

redboot.c

mtd: partitions: make parsers return 'const' partition arrays

2015-12-09 10:21:57 -08:00

rfd_ftl.c

mtd: remove some duplicative checks

2014-03-10 22:42:25 -07:00

sm_ftl.c

treewide: Fix typos in printk

2016-04-18 11:23:24 +02:00

sm_ftl.h

mtd: sm_ftl: cosmetic, use bool when possible

2010-10-25 01:33:08 +01:00

ssfdc.c

mtd: Replace if and BUG with BUG_ON

2016-07-09 18:48:54 -07:00