diff options
Diffstat (limited to 'drivers/mci/mci-core.c')
-rw-r--r-- | drivers/mci/mci-core.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c index 82e2f82f53..b8f71e1598 100644 --- a/drivers/mci/mci-core.c +++ b/drivers/mci/mci-core.c @@ -571,6 +571,7 @@ static int mmc_change_freq(struct mci *mci) mci->ext_csd_part_config = mci->ext_csd[EXT_CSD_PARTITION_CONFIG]; mci->bootpart = (mci->ext_csd_part_config >> 3) & 0x7; + mci->boot_ack_enable = (mci->ext_csd_part_config >> 6) & 0x1; } if (IS_ENABLED(CONFIG_MCI_MMC_GPP_PARTITIONS)) @@ -1654,6 +1655,17 @@ static int mci_set_boot(struct param_d *param, void *priv) EXT_CSD_PARTITION_CONFIG, mci->ext_csd_part_config); } +static int mci_set_boot_ack(struct param_d *param, void *priv) +{ + struct mci *mci = priv; + + mci->ext_csd_part_config &= ~(0x1 << 6); + mci->ext_csd_part_config |= mci->boot_ack_enable << 6; + + return mci_switch(mci, + EXT_CSD_PARTITION_CONFIG, mci->ext_csd_part_config); +} + static const char *mci_boot_names[] = { "disabled", "boot0", @@ -1736,6 +1748,7 @@ static int mci_card_probe(struct mci *mci) { struct mci_host *host = mci->host; int i, rc, disknum, ret; + bool has_bootpart = false; if (host->card_present && !host->card_present(host) && !host->non_removable) { @@ -1810,12 +1823,20 @@ static int mci_card_probe(struct mci *mci) rc = mci_register_partition(part); if (IS_ENABLED(CONFIG_MCI_MMC_BOOT_PARTITIONS) && - part->area_type == MMC_BLK_DATA_AREA_BOOT && - !mci->param_boot) { - mci->param_boot = dev_add_param_enum(&mci->dev, "boot", - mci_set_boot, NULL, &mci->bootpart, - mci_boot_names, ARRAY_SIZE(mci_boot_names), mci); - } + part->area_type == MMC_BLK_DATA_AREA_BOOT) + has_bootpart = true; + } + + if (has_bootpart) { + mci->param_boot = + dev_add_param_enum(&mci->dev, "boot", mci_set_boot, + NULL, &mci->bootpart, mci_boot_names, + ARRAY_SIZE(mci_boot_names), mci); + + mci->param_boot_ack = + dev_add_param_bool(&mci->dev, "boot_ack", + mci_set_boot_ack, NULL, + &mci->boot_ack_enable, mci); } dev_dbg(&mci->dev, "SD Card successfully added\n"); |