diff options
| -rw-r--r-- | drivers/mmc/mmc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index bdd7894..b8039cd 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -486,7 +486,7 @@ static int mmc_change_freq(struct mmc *mmc) char cardtype; int err; - mmc->card_caps = MMC_MODE_4BIT | MMC_MODE_8BIT; + mmc->card_caps = 0; if (mmc_host_is_spi(mmc)) return 0; @@ -495,6 +495,8 @@ static int mmc_change_freq(struct mmc *mmc) if (mmc->version < MMC_VERSION_4) return 0; + mmc->card_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT; + err = mmc_send_ext_csd(mmc, ext_csd); if (err) @@ -1349,7 +1351,8 @@ static int mmc_startup(struct mmc *mmc) mmc->tran_speed = 50000000; else mmc->tran_speed = 25000000; - } else { + } else if (mmc->version >= MMC_VERSION_4) { + /* Only version 4 of MMC supports wider bus widths */ int idx; /* An array of possible bus widths in order of preference */ |