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| author | Adrian Hunter <adrian.hunter@intel.com> | 2012-03-13 05:19:13 -0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-03-27 12:20:07 -0400 |
| commit | 83bb24aaa4af2ec7c127cc2a5fa7ca9f64cdd13d (patch) | |
| tree | fa7d97909c26a8906c6c97947a0f7ea25f3f2288 /drivers/mmc | |
| parent | 2cecdf002300bca86ce83b17a60f907d5a4ce7dc (diff) | |
| download | linux-83bb24aaa4af2ec7c127cc2a5fa7ca9f64cdd13d.tar.gz linux-83bb24aaa4af2ec7c127cc2a5fa7ca9f64cdd13d.tar.bz2 linux-83bb24aaa4af2ec7c127cc2a5fa7ca9f64cdd13d.zip | |
mmc: core: add high-capacity erase size capability flag
Let drivers specify the use of high-capacity erase size.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index d7d8a93c3503..02914d609a91 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -952,7 +952,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, * If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF * bit. This bit will be lost every time after a reset or power off. */ - if (card->ext_csd.enhanced_area_en) { + if (card->ext_csd.enhanced_area_en || + (card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_ERASE_GROUP_DEF, 1, card->ext_csd.generic_cmd6_time); |