diff options
Diffstat (limited to 'drivers/mmc/core/mmc_ops.c')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index fe80f26d6971..78f75f00efc5 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -305,7 +305,7 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host, int mmc_send_csd(struct mmc_card *card, u32 *csd) { int ret, i; - u32 *csd_tmp; + __be32 *csd_tmp; if (!mmc_host_is_spi(card->host)) return mmc_send_cxd_native(card->host, card->rca << 16, @@ -319,7 +319,7 @@ int mmc_send_csd(struct mmc_card *card, u32 *csd) if (ret) goto err; - for (i = 0;i < 4;i++) + for (i = 0; i < 4; i++) csd[i] = be32_to_cpu(csd_tmp[i]); err: @@ -330,7 +330,7 @@ err: int mmc_send_cid(struct mmc_host *host, u32 *cid) { int ret, i; - u32 *cid_tmp; + __be32 *cid_tmp; if (!mmc_host_is_spi(host)) { if (!host->card) @@ -347,7 +347,7 @@ int mmc_send_cid(struct mmc_host *host, u32 *cid) if (ret) goto err; - for (i = 0;i < 4;i++) + for (i = 0; i < 4; i++) cid[i] = be32_to_cpu(cid_tmp[i]); err: @@ -838,3 +838,31 @@ int mmc_can_ext_csd(struct mmc_card *card) { return (card && card->csd.mmca_vsn > CSD_SPEC_VER_3); } + +static int mmc_cmdq_switch(struct mmc_card *card, bool enable) +{ + u8 val = enable ? EXT_CSD_CMDQ_MODE_ENABLED : 0; + int err; + + if (!card->ext_csd.cmdq_support) + return -EOPNOTSUPP; + + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_CMDQ_MODE_EN, + val, card->ext_csd.generic_cmd6_time); + if (!err) + card->ext_csd.cmdq_en = enable; + + return err; +} + +int mmc_cmdq_enable(struct mmc_card *card) +{ + return mmc_cmdq_switch(card, true); +} +EXPORT_SYMBOL_GPL(mmc_cmdq_enable); + +int mmc_cmdq_disable(struct mmc_card *card) +{ + return mmc_cmdq_switch(card, false); +} +EXPORT_SYMBOL_GPL(mmc_cmdq_disable); |