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>
git-mirror · Oct 12, 2008 · a4b7619 · a4b7619
1 parent d6d8de3
commit a4b7619
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Showing 3 changed files with 6 additions and 2 deletions.
diff --git 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
@@ -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
@@ -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 */