diff options
Diffstat (limited to 'drivers/mmc/core/sdio.c')
| -rw-r--r-- | drivers/mmc/core/sdio.c | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index b9dee28ee7d0..47d1708810bd 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -18,6 +18,7 @@ #include "core.h" #include "bus.h" +#include "sd.h" #include "sdio_bus.h" #include "mmc_ops.h" #include "sd_ops.h" @@ -245,10 +246,26 @@ static int sdio_enable_hs(struct mmc_card *card) if (ret) return ret; - mmc_card_set_highspeed(card); - mmc_set_timing(card->host, MMC_TIMING_SD_HS); + return 1; +} - return 0; +static unsigned mmc_sdio_get_max_clock(struct mmc_card *card) +{ + unsigned max_dtr; + + if (mmc_card_highspeed(card)) { + /* + * The SDIO specification doesn't mention how + * the CIS transfer speed register relates to + * high-speed, but it seems that 50 MHz is + * mandatory. + */ + max_dtr = 50000000; + } else { + max_dtr = card->cis.max_dtr; + } + + return max_dtr; } /* @@ -351,23 +368,15 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr, * Switch to high-speed (if supported). */ err = sdio_enable_hs(card); - if (err) + if (err > 0) + mmc_sd_go_highspeed(card); + else if (err) goto remove; /* * Change to the card's maximum speed. */ - if (mmc_card_highspeed(card)) { - /* - * The SDIO specification doesn't mention how - * the CIS transfer speed register relates to - * high-speed, but it seems that 50 MHz is - * mandatory. - */ - mmc_set_clock(host, 50000000); - } else { - mmc_set_clock(host, card->cis.max_dtr); - } + mmc_set_clock(host, mmc_sdio_get_max_clock(card)); /* * Switch to wider bus (if supported). |