Merge branch 'next' into for-linus

Prepare input updates for 5.20 (or 6.0) merge window.

1 files changed, 52 insertions, 1 deletions

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 2702faf7b0f6..d777c8851ed6 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -961,7 +961,21 @@ static int m88e1111_config_init(struct phy_device *phydev)
 	if (err < 0)
 		return err;
 
-	return genphy_soft_reset(phydev);
+	err = genphy_soft_reset(phydev);
+	if (err < 0)
+		return err;
+
+	if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
+		/* If the HWCFG_MODE was changed from another mode (such as
+		 * 1000BaseX) to SGMII, the state of the support bits may have
+		 * also changed now that the PHY has been reset.
+		 * Update the PHY abilities accordingly.
+		 */
+		err = genphy_read_abilities(phydev);
+		linkmode_or(phydev->advertising, phydev->advertising,
+			    phydev->supported);
+	}
+	return err;
 }
 
 static int m88e1111_get_downshift(struct phy_device *phydev, u8 *data)
@@ -1177,7 +1191,44 @@ static int m88e1318_config_init(struct phy_device *phydev)
 
 static int m88e1510_config_init(struct phy_device *phydev)
 {
+	static const struct {
+		u16 reg17, reg16;
+	} errata_vals[] = {
+		{ 0x214b, 0x2144 },
+		{ 0x0c28, 0x2146 },
+		{ 0xb233, 0x214d },
+		{ 0xcc0c, 0x2159 },
+	};
 	int err;
+	int i;
+
+	/* As per Marvell Release Notes - Alaska 88E1510/88E1518/88E1512/
+	 * 88E1514 Rev A0, Errata Section 5.1:
+	 * If EEE is intended to be used, the following register writes
+	 * must be done once after every hardware reset.
+	 */
+	err = marvell_set_page(phydev, 0x00FF);
+	if (err < 0)
+		return err;
+
+	for (i = 0; i < ARRAY_SIZE(errata_vals); ++i) {
+		err = phy_write(phydev, 17, errata_vals[i].reg17);
+		if (err)
+			return err;
+		err = phy_write(phydev, 16, errata_vals[i].reg16);
+		if (err)
+			return err;
+	}
+
+	err = marvell_set_page(phydev, 0x00FB);
+	if (err < 0)
+		return err;
+	err = phy_write(phydev, 07, 0xC00D);
+	if (err < 0)
+		return err;
+	err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
+	if (err < 0)
+		return err;
 
 	/* SGMII-to-Copper mode initialization */
 	if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {