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--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -263,6 +263,15 @@ static int mmc_switch_hs(struct mmc_card
return -ENOMEM;
}
+ /*
+ * Some SDHC cards, notably those with a Sandisk SD controller
+ * (also found in Kingston products) need a bit of slack
+ * before successfully handling the SWITCH command. So far,
+ * cards identifying themselves as "SD04G" and "SD08G" are
+ * affected
+ */
+ udelay(1000);
+
err = mmc_sd_switch(card, 1, 0, 1, status);
if (err)
goto out;
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -620,9 +620,11 @@ static void mvsd_set_ios(struct mmc_host
if (ios->bus_width == MMC_BUS_WIDTH_4)
ctrl_reg |= MVSD_HOST_CTRL_DATA_WIDTH_4_BITS;
+#if 0
if (ios->timing == MMC_TIMING_MMC_HS ||
ios->timing == MMC_TIMING_SD_HS)
ctrl_reg |= MVSD_HOST_CTRL_HI_SPEED_EN;
+#endif
host->ctrl = ctrl_reg;
mvsd_write(MVSD_HOST_CTRL, ctrl_reg);
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -286,9 +286,9 @@ void mmc_set_data_timeout(struct mmc_dat
* The limit is really 250 ms, but that is
* insufficient for some crappy cards.
*/
- limit_us = 300000;
+ limit_us = 500000;
else
- limit_us = 100000;
+ limit_us = 200000;
/*
* SDHC cards always use these fixed values.
|
