diff options
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index a26f3cec20..44a4feb96e 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -594,10 +594,15 @@ int mmc_switch_part(int dev_num, unsigned int part_num) ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF, (mmc->part_config & ~PART_ACCESS_MASK) | (part_num & PART_ACCESS_MASK)); - if (ret) - return ret; - return mmc_set_capacity(mmc, part_num); + /* + * Set the capacity if the switch succeeded or was intended + * to return to representing the raw device. + */ + if ((ret == 0) || ((ret == -ENODEV) && (part_num == 0))) + ret = mmc_set_capacity(mmc, part_num); + + return ret; } int mmc_getcd(struct mmc *mmc) @@ -1010,6 +1015,8 @@ static int mmc_startup(struct mmc *mmc) if (err) return err; + else + ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1; /* Read out group size from ext_csd */ mmc->erase_grp_size = @@ -1127,10 +1134,11 @@ static int mmc_startup(struct mmc *mmc) mmc_set_bus_width(mmc, widths[idx]); err = mmc_send_ext_csd(mmc, test_csd); + /* Only compare read only fields */ if (!err && ext_csd[EXT_CSD_PARTITIONING_SUPPORT] \ == test_csd[EXT_CSD_PARTITIONING_SUPPORT] - && ext_csd[EXT_CSD_ERASE_GROUP_DEF] \ - == test_csd[EXT_CSD_ERASE_GROUP_DEF] \ + && ext_csd[EXT_CSD_HC_WP_GRP_SIZE] \ + == test_csd[EXT_CSD_HC_WP_GRP_SIZE] \ && ext_csd[EXT_CSD_REV] \ == test_csd[EXT_CSD_REV] && ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] \ |
