net: dsa: lantiq_gswip: Enable GSWIP_MII_CFG_EN also for internal PHYs

BugLink: https://bugs.launchpad.net/bugs/1913486
[ Upstream commit c1a9ec7e5d577a9391660800c806c53287fca991 ]

Enable GSWIP_MII_CFG_EN also for internal PHYs to make traffic flow.
Without this the PHY link is detected properly and ethtool statistics
for TX are increasing but there's no RX traffic coming in.

Fixes: 14fceff4771e51 ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Suggested-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: William Breathitt Gray <william.gray@canonical.com>

diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index ef5d5cc5296936866b0f2dcf7256eb40ab596b5d..a6f4c587f02bc332ab435fc6e24a4dd19bcbbae8 100644 (file)
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -1522,9 +1522,7 @@ static void gswip_phylink_mac_link_up(struct dsa_switch *ds, int port,
 {
        struct gswip_priv *priv = ds->priv;
 
-       /* Enable the xMII interface only for the external PHY */
-       if (interface != PHY_INTERFACE_MODE_INTERNAL)
-               gswip_mii_mask_cfg(priv, 0, GSWIP_MII_CFG_EN, port);
+       gswip_mii_mask_cfg(priv, 0, GSWIP_MII_CFG_EN, port);
 }
 
 static void gswip_get_strings(struct dsa_switch *ds, int port, u32 stringset,