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path: root/drivers/ata/libahci.c
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Diffstat (limited to 'drivers/ata/libahci.c')
-rw-r--r--drivers/ata/libahci.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index d256a66158be..2fa551a5146e 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1117,6 +1117,7 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
 			   int port_no, void __iomem *mmio,
 			   void __iomem *port_mmio)
 {
+	struct ahci_host_priv *hpriv = ap->host->private_data;
 	const char *emsg = NULL;
 	int rc;
 	u32 tmp;
@@ -1138,6 +1139,12 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
 		writel(tmp, port_mmio + PORT_IRQ_STAT);
 
 	writel(1 << port_no, mmio + HOST_IRQ_STAT);
+
+	/* mark esata ports */
+	tmp = readl(port_mmio + PORT_CMD);
+	if ((tmp & PORT_CMD_HPCP) ||
+	    ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)))
+		ap->pflags |= ATA_PFLAG_EXTERNAL;
 }
 
 void ahci_init_controller(struct ata_host *host)