openwrt/target/linux/cns3xxx/patches-4.19/080-sata_support.patch

--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -44,11 +44,18 @@ static struct scsi_host_template ahci_pl
 	AHCI_SHT(DRV_NAME),
 };
 
+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 *port;
+	const struct ata_port_info *port = &ahci_port_info;
 	int rc;
 
 	hpriv = ahci_platform_get_resources(pdev,
@@ -66,9 +73,14 @@ static int ahci_probe(struct platform_de
 	if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
 		hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
 
-	port = acpi_device_get_match_data(dev);
-	if (!port)
-		port = &ahci_port_info;
+	if (IS_ENABLED(CONFIG_ARCH_CNS3XXX)) {
+		port = &cns3xxx_port_info;
+	}
+	else {
+		port = acpi_device_get_match_data(dev);
+		if (!port)
+			port = &ahci_port_info;
+	}
 
 	rc = ahci_platform_init_host(pdev, hpriv, port,
 				     &ahci_platform_sht);