--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -29,12 +29,23 @@ static const struct ata_port_info ahci_p
 	.port_ops	= &ahci_platform_ops,
 };
 
+static const struct ata_port_info cns3xxx_port_info = {
+	.flags		= AHCI_FLAG_COMMON,
+	.pio_mask	= ATA_PIO4,
+	.udma_mask	= ATA_UDMA6,
+	.port_ops	= &ahci_pmp_retry_srst_ops,
+};
+
 static int ahci_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct ahci_host_priv *hpriv;
+	const struct ata_port_info *info = &ahci_port_info;
 	int rc;
 
+	if (IS_ENABLED(CONFIG_ARCH_CNS3XXX))
+		info = &cns3xxx_port_info;
+
 	hpriv = ahci_platform_get_resources(pdev);
 	if (IS_ERR(hpriv))
 		return PTR_ERR(hpriv);
