1 files changed, 49 insertions, 6 deletions

diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 74134699ccee..893319108ba4 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -32,9 +32,39 @@ static unsigned int debug_nodma = 0;
 static unsigned int debug_forcedma = 0;
 static unsigned int debug_quirks = 0;
 
+#define SDHCI_QUIRK_CLOCK_BEFORE_RESET                  (1<<0)
+#define SDHCI_QUIRK_FORCE_DMA                           (1<<1)
+
 static const struct pci_device_id pci_ids[] __devinitdata = {
-        /* handle any SD host controller */
-        {PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)},
+        {
+                .vendor         = PCI_VENDOR_ID_RICOH,
+                .device         = PCI_DEVICE_ID_RICOH_R5C822,
+                .subvendor      = PCI_VENDOR_ID_IBM,
+                .subdevice      = PCI_ANY_ID,
+                .driver_data    = SDHCI_QUIRK_CLOCK_BEFORE_RESET |
+                                  SDHCI_QUIRK_FORCE_DMA,
+        },
+
+        {
+                .vendor         = PCI_VENDOR_ID_RICOH,
+                .device         = PCI_DEVICE_ID_RICOH_R5C822,
+                .subvendor      = PCI_ANY_ID,
+                .subdevice      = PCI_ANY_ID,
+                .driver_data    = SDHCI_QUIRK_FORCE_DMA,
+        },
+
+        {
+                .vendor         = PCI_VENDOR_ID_TI,
+                .device         = PCI_DEVICE_ID_TI_XX21_XX11_SD,
+                .subvendor      = PCI_ANY_ID,
+                .subdevice      = PCI_ANY_ID,
+                .driver_data    = SDHCI_QUIRK_FORCE_DMA,
+        },
+
+        {       /* Generic SD host controller */
+                PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
+        },
+
         { /* end: all zeroes */ },
 };
 
@@ -440,9 +470,7 @@ static void sdhci_finish_data(struct sdhci_host *host)
                         "though there were blocks left. Please report this "
                         "to " BUGMAIL ".\n", mmc_hostname(host->mmc));
                 data->error = MMC_ERR_FAILED;
-        }
-
-        if (host->size != 0) {
+        } else if (host->size != 0) {
                 printk(KERN_ERR "%s: %d bytes were left untransferred. "
                         "Please report this to " BUGMAIL ".\n",
                         mmc_hostname(host->mmc), host->size);
@@ -808,6 +836,19 @@ static void sdhci_tasklet_finish(unsigned long param)
         if ((mrq->cmd->error != MMC_ERR_NONE) ||
                 (mrq->data && ((mrq->data->error != MMC_ERR_NONE) ||
                 (mrq->data->stop && (mrq->data->stop->error != MMC_ERR_NONE))))) {
+
+                /* Some controllers need this kick or reset won't work here */
+                if (host->chip->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) {
+                        unsigned int clock;
+
+                        /* This is to force an update */
+                        clock = host->clock;
+                        host->clock = 0;
+                        sdhci_set_clock(host, clock);
+                }
+
+                /* Spec says we should do both at the same time, but Ricoh
+                   controllers do not like that. */
                 sdhci_reset(host, SDHCI_RESET_CMD);
                 sdhci_reset(host, SDHCI_RESET_DATA);
         }
@@ -1165,7 +1206,9 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
         else if (debug_forcedma) {
                 DBG("DMA forced on\n");
                 host->flags |= SDHCI_USE_DMA;
-        } else if ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA)
+        } else if (chip->quirks & SDHCI_QUIRK_FORCE_DMA)
+                host->flags |= SDHCI_USE_DMA;
+        else if ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA)
                 DBG("Controller doesn't have DMA interface\n");
         else if (!(caps & SDHCI_CAN_DO_DMA))
                 DBG("Controller doesn't have DMA capability\n");