+ if (host->flags & SDHCI_USE_DMA)
+ host->flags |= SDHCI_REQ_USE_DMA;
+
+ if (unlikely((host->flags & SDHCI_REQ_USE_DMA) &&
+ (host->chip->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) &&
+ ((data->blksz * data->blocks) & 0x3))) {
+ DBG("Reverting to PIO because of transfer size (%d)\n",
+ data->blksz * data->blocks);
+ host->flags &= ~SDHCI_REQ_USE_DMA;
+ }
+
+ /*
+ * The assumption here being that alignment is the same after
+ * translation to device address space.
+ */
+ if (unlikely((host->flags & SDHCI_REQ_USE_DMA) &&
+ (host->chip->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) &&
+ (data->sg->offset & 0x3))) {
+ DBG("Reverting to PIO because of bad alignment\n");
+ host->flags &= ~SDHCI_REQ_USE_DMA;
+ }
+
+ if (host->flags & SDHCI_REQ_USE_DMA) {