diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 0ebcc45516..2a58031c19 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1657,6 +1657,9 @@ static int mmc_read_and_compare_ext_csd(struct mmc *mmc) const u8 *ext_csd = mmc->ext_csd; ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN); + if (mmc->version < MMC_VERSION_4) + return 0; + err = mmc_send_ext_csd(mmc, test_csd); if (err) return err;