--- 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.