diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2011-08-29 16:42:11 +0300 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 16:32:05 -0400 |
| commit | b2499518b5ad7e28bb3ed348fd3f370eeb1e36c0 (patch) | |
| tree | c4c9597d0631554bffeecbcc6a2a7ec3037ea78c /include/linux/mmc/core.h | |
| parent | 8e3336b1e4378f7d205af9b25dcc9e645c8a9609 (diff) | |
| download | linux-b2499518b5ad7e28bb3ed348fd3f370eeb1e36c0.tar.bz2 | |
mmc: core: add eMMC hardware reset support
eMMC's may have a hardware reset line. This patch provides a
host controller operation to implement hardware reset and
a function to reset and reinitialize the card. Also, for MMC,
the reset is always performed before initialization.
The host must set the new host capability MMC_CAP_HW_RESET
to enable hardware reset.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc/core.h')
| -rw-r--r-- | include/linux/mmc/core.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index b8b1b7a311f1..56e5625b6f41 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -162,6 +162,9 @@ extern int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from, extern unsigned int mmc_calc_max_discard(struct mmc_card *card); extern int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen); +extern int mmc_hw_reset(struct mmc_host *host); +extern int mmc_hw_reset_check(struct mmc_host *host); +extern int mmc_can_reset(struct mmc_card *card); extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *); extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int); |