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| author |   Philip Rakity <prakity@marvell.com> | 2011-07-07 09:04:55 -0700 |
|---|---|---|
| committer |   Chris Ball <cjb@laptop.org> | 2011-07-13 14:54:37 -0400 |
| commit | f39b2dd9d065151a04f5996656d1f27a7eb32d45 (patch) | |
| tree | 3801f7d6793529d737fcbfd6af05b6900ef2cd06 /include/linux/mmc/card.h | |
| parent | mmc: queue: bring discard_granularity/alignment into line with SCSI (diff) | |
| download | linux-dev-f39b2dd9d065151a04f5996656d1f27a7eb32d45.tar.xz linux-dev-f39b2dd9d065151a04f5996656d1f27a7eb32d45.zip | |
mmc: core: Bus width testing needs to handle suspend/resume
On reading the ext_csd for the first time (in 1 bit mode), save the
ext_csd information needed for bus width compare.
On every pass we make re-reading the ext_csd, compare the data
against the saved ext_csd data.
This fixes a regression introduced in 3.0-rc1 by 08ee80cc397ac1a3
("mmc: core: eMMC bus width may not work on all platforms"), which
incorrectly assumed we would be re-reading the ext_csd at resume-
time.
Signed-off-by: Philip Rakity <prakity@marvell.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/mmc/card.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index c6927a4d157f..6ad43554ac05 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -64,6 +64,19 @@ struct mmc_ext_csd { unsigned long long enhanced_area_offset; /* Units: Byte */ unsigned int enhanced_area_size; /* Units: KB */ unsigned int boot_size; /* in bytes */ + u8 raw_partition_support; /* 160 */ + u8 raw_erased_mem_count; /* 181 */ + u8 raw_ext_csd_structure; /* 194 */ + u8 raw_card_type; /* 196 */ + u8 raw_s_a_timeout; /* 217 */ + u8 raw_hc_erase_gap_size; /* 221 */ + u8 raw_erase_timeout_mult; /* 223 */ + u8 raw_hc_erase_grp_size; /* 224 */ + u8 raw_sec_trim_mult; /* 229 */ + u8 raw_sec_erase_mult; /* 230 */ + u8 raw_sec_feature_support;/* 231 */ + u8 raw_trim_mult; /* 232 */ + u8 raw_sectors[4]; /* 212 - 4 bytes */ }; struct sd_scr { |