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path: root/drivers/mmc/host/sdhci.h
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Diffstat (limited to 'drivers/mmc/host/sdhci.h')
-rw-r--r--drivers/mmc/host/sdhci.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 84d149096f0e..5d37dd94b53f 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -228,6 +228,8 @@ struct sdhci_host {
#define SDHCI_QUIRK_FORCE_BLK_SZ_2048 (1<<20)
/* Controller cannot do multi-block transfers */
#define SDHCI_QUIRK_NO_MULTIBLOCK (1<<21)
+/* Controller can only handle 1-bit data transfers */
+#define SDHCI_QUIRK_FORCE_1_BIT_DATA (1<<22)
int irq; /* Device IRQ */
void __iomem * ioaddr; /* Mapped address */