summary | shortlog | log | commit | commitdiff | tree
raw | patch | inline | side by side (parent: 13dd76b)
raw | patch | inline | side by side (parent: 13dd76b)
author | Philip Rakity <prakity@yahoo.com> | |
Thu, 4 Apr 2013 19:18:11 +0000 (20:18 +0100) | ||
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
Wed, 8 May 2013 03:08:25 +0000 (20:08 -0700) |
commit 836dc2fe89c968c10cada87e0dfae6626f8f9da3 upstream.
PARTITION_SUPPORT needs to be set before doing the compare on version
number so the bit width test does not get invalid data. Before this
patch, a Sandisk iNAND eMMC card would detect 1-bit width although
the hardware supports 4-bit.
Only affects old emmc devices - pre 4.4 devices.
Reported-by: Elad Yi <elad.yi@gmail.com>
Signed-off-by: Philip Rakity <prakity@yahoo.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PARTITION_SUPPORT needs to be set before doing the compare on version
number so the bit width test does not get invalid data. Before this
patch, a Sandisk iNAND eMMC card would detect 1-bit width although
the hardware supports 4-bit.
Only affects old emmc devices - pre 4.4 devices.
Reported-by: Elad Yi <elad.yi@gmail.com>
Signed-off-by: Philip Rakity <prakity@yahoo.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mmc/core/mmc.c | patch | blob | history |
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 089e8ea34812516612000faab9ec79d530cf8f51..2743b7d3309d54f4b13245a1fe17cf7c948d5a70 100644 (file)
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT];
card->ext_csd.raw_trim_mult =
ext_csd[EXT_CSD_TRIM_MULT];
+ card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
if (card->ext_csd.rev >= 4) {
/*
* Enhanced area feature support -- check whether the eMMC
* card has the Enhanced area enabled. If so, export enhanced
* area offset and size to user by adding sysfs interface.
*/
- card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
if ((ext_csd[EXT_CSD_PARTITION_SUPPORT] & 0x2) &&
(ext_csd[EXT_CSD_PARTITION_ATTRIBUTE] & 0x1)) {
hc_erase_grp_sz =