When bringing down then up the link on a 88e1512 phy a link is not
getting established. This is because the phy is coming out of reset then
immediately getting configured. During configuration the page is
unsuccessfully updated causing writes to the wrong registers.

Add the soft reset function that does a reset then polling read waiting
for the phy to come back online, at which stage the page register can be
updated successfully.

This was tested on a 88E1512 phy, using ip link to bring up/down the
link.

Signed-off-by: Ben Brown <redacted>
---
 drivers/net/phy/marvell.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 7a578b5aa2ed..1ae75141408a 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c

@@ -3922,6 +3922,7 @@ static struct phy_driver marvell_drivers[] = {
 		.features = PHY_GBIT_FIBRE_FEATURES,
 		.flags = PHY_POLL_CABLE_TEST,
 		.probe = marvell_probe,
+		.soft_reset = genphy_soft_reset,
 		.config_init = m88e1510_config_init,
 		.config_aneg = m88e1510_config_aneg,
 		.read_status = marvell_read_status,

-- 
2.54.0