Revision 72741084d903e65e121c27bd29494d941729d4a1 authored by Ulf Hansson on 27 August 2019, 08:10:43 UTC, committed by Ulf Hansson on 30 August 2019, 07:17:53 UTC
The OCR register defines the supported range of VDD voltages for SD cards. However, it has turned out that some SD cards reports an invalid voltage range, for example having bit7 set. When a host supports MMC_CAP2_FULL_PWR_CYCLE and some of the voltages from the invalid VDD range, this triggers the core to run a power cycle of the card to try to initialize it at the lowest common supported voltage. Obviously this fails, since the card can't support it. Let's fix this problem, by clearing invalid bits from the read OCR register for SD cards, before proceeding with the VDD voltage negotiation. Cc: stable@vger.kernel.org Reported-by: Philip Langdale <philipl@overt.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Philip Langdale <philipl@overt.org> Tested-by: Philip Langdale <philipl@overt.org> Tested-by: Manuel Presnitz <mail@mpy.de>
1 parent 7871aa6
Kconfig
# SPDX-License-Identifier: GPL-2.0-only
config JFS_FS
tristate "JFS filesystem support"
select NLS
select CRC32
help
This is a port of IBM's Journaled Filesystem . More information is
available in the file <file:Documentation/filesystems/jfs.txt>.
If you do not intend to use the JFS filesystem, say N.
config JFS_POSIX_ACL
bool "JFS POSIX Access Control Lists"
depends on JFS_FS
select FS_POSIX_ACL
help
Posix Access Control Lists (ACLs) support permissions for users and
groups beyond the owner/group/world scheme.
If you don't know what Access Control Lists are, say N
config JFS_SECURITY
bool "JFS Security Labels"
depends on JFS_FS
help
Security labels support alternative access control models
implemented by security modules like SELinux. This option
enables an extended attribute handler for file security
labels in the jfs filesystem.
If you are not using a security module that requires using
extended attributes for file security labels, say N.
config JFS_DEBUG
bool "JFS debugging"
depends on JFS_FS
help
If you are experiencing any problems with the JFS filesystem, say
Y here. This will result in additional debugging messages to be
written to the system log. Under normal circumstances, this
results in very little overhead.
config JFS_STATISTICS
bool "JFS statistics"
depends on JFS_FS
help
Enabling this option will cause statistics from the JFS file system
to be made available to the user in the /proc/fs/jfs/ directory.
Computing file changes ...
