diff options
| -rw-r--r-- | drivers/ata/sata_rcar.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index 629b07c452c5..178165be0c32 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -121,6 +121,8 @@ /* Descriptor table word 0 bit (when DTA32M = 1) */ #define SATA_RCAR_DTEND BIT(0) +#define SATA_RCAR_DMA_BOUNDARY 0x1FFFFFFEUL + struct sata_rcar_priv { void __iomem *base; struct clk *clk; @@ -575,7 +577,14 @@ static u8 sata_rcar_bmdma_status(struct ata_port *ap) } static struct scsi_host_template sata_rcar_sht = { - ATA_BMDMA_SHT(DRV_NAME), + ATA_BASE_SHT(DRV_NAME), + /* + * This controller allows transfer chunks up to 512MB which cross 64KB + * boundaries, therefore the DMA limits are more relaxed than standard + * ATA SFF. + */ + .sg_tablesize = ATA_MAX_PRD, + .dma_boundary = SATA_RCAR_DMA_BOUNDARY, }; static struct ata_port_operations sata_rcar_port_ops = { |
