sdhci: force high speed capability on some controllers

Some high speed capable controllers forget to set the high speed
capability bit. Make sure we enable the functionality anyway.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index fcb14c2..0a84f10 100644 (file)
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -144,7 +144,8 @@ static int jmicron_probe(struct sdhci_pci_chip *chip)
                          SDHCI_QUIRK_32BIT_DMA_SIZE |
                          SDHCI_QUIRK_32BIT_ADMA_SIZE |
                          SDHCI_QUIRK_RESET_AFTER_REQUEST |
-                         SDHCI_QUIRK_BROKEN_SMALL_PIO;
+                         SDHCI_QUIRK_BROKEN_SMALL_PIO |
+                         SDHCI_QUIRK_FORCE_HIGHSPEED;
        }
 
        /*

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index fd2dc82..3c808d2 100644 (file)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1631,7 +1631,8 @@ int sdhci_add_host(struct sdhci_host *host)
        mmc->f_max = host->max_clk;
        mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
 
-       if (caps & SDHCI_CAN_DO_HISPD)
+       if ((caps & SDHCI_CAN_DO_HISPD) ||
+               (host->quirks & SDHCI_QUIRK_FORCE_HIGHSPEED))
                mmc->caps |= MMC_CAP_SD_HIGHSPEED;
 
        mmc->ocr_avail = 0;

diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 197d4a0..31f4b15 100644 (file)
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -208,6 +208,8 @@ struct sdhci_host {
 #define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL                 (1<<12)
 /* Controller has an issue with buffer bits for small transfers */
 #define SDHCI_QUIRK_BROKEN_SMALL_PIO                   (1<<13)
+/* Controller supports high speed but doesn't have the caps bit set */
+#define SDHCI_QUIRK_FORCE_HIGHSPEED                    (1<<14)
 
        int                     irq;            /* Device IRQ */
        void __iomem *          ioaddr;         /* Mapped address */