[PATCH v4 4/6] ata: ahci_imx: Add 32bits DMA limit for i.MX8QM AHCI SATA

Since i.MX8QM AHCI SATA only has 32bits DMA capability. Add 32bits DMA limit here.

Signed-off-by: Richard Zhu hongxing.zhu@nxp.com --- drivers/ata/ahci_imx.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c index 4dd98368f8562..e94c0fdea2260 100644 --- a/drivers/ata/ahci_imx.c +++ b/drivers/ata/ahci_imx.c @@ -827,6 +827,9 @@ static const struct scsi_host_template ahci_platform_sht = {

static int imx8_sata_probe(struct device *dev, struct imx_ahci_priv *imxpriv) { + if (!(dev->bus_dma_limit)) + dev->bus_dma_limit = DMA_BIT_MASK(32); + imxpriv->sata_phy = devm_phy_get(dev, "sata-phy"); if (IS_ERR(imxpriv->sata_phy)) return dev_err_probe(dev, PTR_ERR(imxpriv->sata_phy),