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-rw-r--r--drivers/ata/sata_dwc_460ex.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 7f953892647a..aee887350fa3 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -1151,7 +1151,13 @@ static struct scsi_host_template sata_dwc_sht = {
*/
.sg_tablesize = LIBATA_MAX_PRD,
/* .can_queue = ATA_MAX_QUEUE, */
- .dma_boundary = ATA_DMA_BOUNDARY,
+ /*
+ * Make sure a LLI block is not created that will span 8K max FIS
+ * boundary. If the block spans such a FIS boundary, there is a chance
+ * that a DMA burst will cross that boundary -- this results in an
+ * error in the host controller.
+ */
+ .dma_boundary = 0x1fff /* ATA_DMA_BOUNDARY */,
};
static struct ata_port_operations sata_dwc_ops = {
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