diff options
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 86c4db9..f07505f 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1031,6 +1031,21 @@ static int mmc_startup(struct mmc *mmc) has_parts = true; } + mmc->enh_user_size = + (ext_csd[EXT_CSD_ENH_SIZE_MULT+2] << 16) + + (ext_csd[EXT_CSD_ENH_SIZE_MULT+1] << 8) + + ext_csd[EXT_CSD_ENH_SIZE_MULT]; + mmc->enh_user_size *= ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; + mmc->enh_user_size *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; + mmc->enh_user_size <<= 19; + mmc->enh_user_start = + (ext_csd[EXT_CSD_ENH_START_ADDR+3] << 24) + + (ext_csd[EXT_CSD_ENH_START_ADDR+2] << 16) + + (ext_csd[EXT_CSD_ENH_START_ADDR+1] << 8) + + ext_csd[EXT_CSD_ENH_START_ADDR]; + if (mmc->high_capacity) + mmc->enh_user_start <<= 9; + /* * Host needs to enable ERASE_GRP_DEF bit if device is * partitioned. This bit will be lost every time after a reset |