net: mvneta: add support for fixed links

Following the introduction of of_phy_register_fixed_link(), this patch
introduces fixed link support in the mvneta driver, for Marvell Armada
370/XP SOCs.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 3 deletions

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 72bc47f2d2e9..c7cbaf3b4afe 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2797,9 +2797,22 @@ static int mvneta_probe(struct platform_device *pdev)
 
         phy_node = of_parse_phandle(dn, "phy", 0);
         if (!phy_node) {
-                dev_err(&pdev->dev, "no associated PHY\n");
-                err = -ENODEV;
-                goto err_free_irq;
+                if (!of_phy_is_fixed_link(dn)) {
+                        dev_err(&pdev->dev, "no PHY specified\n");
+                        err = -ENODEV;
+                        goto err_free_irq;
+                }
+
+                err = of_phy_register_fixed_link(dn);
+                if (err < 0) {
+                        dev_err(&pdev->dev, "cannot register fixed PHY\n");
+                        goto err_free_irq;
+                }
+
+                /* In the case of a fixed PHY, the DT node associated
+                 * to the PHY is the Ethernet MAC DT node.
+                 */
+                phy_node = dn;
         }
 
         phy_mode = of_get_phy_mode(dn);