From: David Bauer <mail@david-bauer.net>
Subject: [PATCH] ath79: allow to override AR8033 SGMII aneg status

In order to make the QCA955x SGMII workaround work, the unsuccessful
SGMII autonegotiation on the AR8033 should not block the PHY
state-machine.

Otherwise, the ag71xx driver never becomes aware of the copper-side
link-establishment and the workaround is never executed.

Submitted-by: David Bauer <mail@david-bauer.net>
Submitted-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
---
 drivers/net/phy/at803x.c-override.patch          | 7 +++++++
 1 files changed, 7 insertions(+)

--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -830,6 +830,13 @@ static int at803x_aneg_done(struct phy_d
 	if (!(phy_read(phydev, AT803X_PSSR) & AT803X_PSSR_MR_AN_COMPLETE)) {
 		phydev_warn(phydev, "803x_aneg_done: SGMII link is not ok\n");
 		aneg_done = 0;
+#ifdef CONFIG_OF_MDIO
+		if (phydev->mdio.dev.of_node &&
+				of_property_read_bool(phydev->mdio.dev.of_node,
+				"at803x-override-sgmii-link-check")) {
+			aneg_done = 1;
+		}
+#endif
 	}
 	/* switch back to copper page */
 	phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL);