[MMC] sdhci: reset sdhci controller early

The specification states that the capabilities register might need a reset to
get correct values after boot up.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/mmc/sdhci.c

@@ -1132,6 +1132,8 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
 		goto release;
 	}
 
+	sdhci_reset(host, SDHCI_RESET_ALL);
+
 	version = readw(host->ioaddr + SDHCI_HOST_VERSION);
 	version = (version & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT;
 	if (version != 0) {