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path: root/drivers/mmc/core
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Diffstat (limited to 'drivers/mmc/core')
-rw-r--r--drivers/mmc/core/core.c4
-rw-r--r--drivers/mmc/core/mmc.c2
-rw-r--r--drivers/mmc/core/sd.c21
3 files changed, 15 insertions, 12 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index fa073ab3fa3..26491173275 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -706,7 +706,7 @@ static void mmc_power_up(struct mmc_host *host)
* This delay should be sufficient to allow the power supply
* to reach the minimum voltage.
*/
- mmc_delay(2);
+ mmc_delay(10);
host->ios.clock = host->f_min;
host->ios.power_mode = MMC_POWER_ON;
@@ -716,7 +716,7 @@ static void mmc_power_up(struct mmc_host *host)
* This delay must be at least 74 clock sizes, or 1 ms, or the
* time required to reach a stable voltage.
*/
- mmc_delay(2);
+ mmc_delay(10);
}
static void mmc_power_off(struct mmc_host *host)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index c232d11a7ed..06084dbf127 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -208,7 +208,7 @@ static int mmc_read_ext_csd(struct mmc_card *card)
}
ext_csd_struct = ext_csd[EXT_CSD_REV];
- if (ext_csd_struct > 2) {
+ if (ext_csd_struct > 3) {
printk(KERN_ERR "%s: unrecognised EXT_CSD structure "
"version %d\n", mmc_hostname(card->host),
ext_csd_struct);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 26fc098d77c..cd81c395e16 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -363,15 +363,6 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
goto err;
/*
- * For SPI, enable CRC as appropriate.
- */
- if (mmc_host_is_spi(host)) {
- err = mmc_spi_set_crc(host, use_spi_crc);
- if (err)
- goto err;
- }
-
- /*
* Fetch CID from card.
*/
if (mmc_host_is_spi(host))
@@ -458,6 +449,18 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * For SPI, enable CRC as appropriate.
+ * This CRC enable is located AFTER the reading of the
+ * card registers because some SDHC cards are not able
+ * to provide valid CRCs for non-512-byte blocks.
+ */
+ if (mmc_host_is_spi(host)) {
+ err = mmc_spi_set_crc(host, use_spi_crc);
+ if (err)
+ goto free_card;
+ }
+
+ /*
* Attempt to change to high-speed (if supported)
*/
err = mmc_switch_hs(card);