[PATCH v2] net: phy: gmii2rgmii: Support external rgmii-id phy

[Stefan Herbrechtsmeier]

From: Stefan Herbrechtsmeier <stefan.herbrechtsmeier at weidmueller.com>

Read the phy mode of the external phy from the device tree if available
and check that it is a RGMII variant.

Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier at weidmueller.com>

---

Changes in v2:
- Check that the external phy mode is a RGMII variant

 drivers/net/phy/xilinx_gmii2rgmii.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/xilinx_gmii2rgmii.c b/drivers/net/phy/xilinx_gmii2rgmii.c
index 7376283956..853a0df659 100644
--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -48,7 +48,14 @@ static int xilinxgmiitorgmii_config(struct phy_device *phydev)
 		return -EINVAL;
 	}
 
-	ext_phydev->interface = PHY_INTERFACE_MODE_RGMII;
+	ext_phydev->interface = ofnode_read_phy_mode(node);
+	if (ext_phydev->interface == PHY_INTERFACE_MODE_NA) {
+		ext_phydev->interface = PHY_INTERFACE_MODE_RGMII;
+	} else if (!phy_interface_is_rgmii(ext_phydev)) {
+		printf("Incorrect external interface type\n");
+		return -EINVAL;
+	}
+
 	ext_phydev->node = phandle.node;
 	phydev->priv = ext_phydev;
 
-- 
2.30.2