1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 5b74c8cf4409..2b3f06a024f2 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -57,6 +57,8 @@ static unsigned int debug_quirks = 0;
 #define SDHCI_QUIRK_RESET_AFTER_REQUEST                 (1<<8)
 /* Controller needs voltage and power writes to happen separately */
 #define SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER             (1<<9)
+/* Controller has an off-by-one issue with timeout value */
+#define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL                (1<<10)
 
 static const struct pci_device_id pci_ids[] __devinitdata = {
         {
@@ -134,7 +136,8 @@ static const struct pci_device_id pci_ids[] __devinitdata = {
                 .device         = PCI_DEVICE_ID_MARVELL_CAFE_SD,
                 .subvendor      = PCI_ANY_ID,
                 .subdevice      = PCI_ANY_ID,
-                .driver_data    = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER,
+                .driver_data    = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
+                                  SDHCI_QUIRK_INCR_TIMEOUT_CONTROL,
         },
 
         {
@@ -479,6 +482,13 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
                         break;
         }
 
+        /*
+         * Compensate for an off-by-one error in the CaFe hardware; otherwise,
+         * a too-small count gives us interrupt timeouts.
+         */
+        if ((host->chip->quirks & SDHCI_QUIRK_INCR_TIMEOUT_CONTROL))
+                count++;
+
         if (count >= 0xF) {
                 printk(KERN_WARNING "%s: Too large timeout requested!\n",
                         mmc_hostname(host->mmc));