phy: marvell: Add support for 88E3016 FastEthernet PHY

Marvell 88E3016 is a FastEthernet PHY that also can be found in Marvell
Berlin SoCs as integrated PHY.

Tested-by: Antoine Ténart <[e-mail]>
Reviewed-by: Florian Fainelli <[e-mail]>
Signed-off-by: Sebastian Hesselbarth <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/phy/marvell.c

···
 
 #define MII_M1116R_CONTROL_REG_MAC	21
 
+#define MII_88E3016_PHY_SPEC_CTRL	0x10
+#define MII_88E3016_DISABLE_SCRAMBLER	0x0200
+#define MII_88E3016_AUTO_MDIX_CROSSOVER	0x0030
 
 MODULE_DESCRIPTION("Marvell PHY driver");
 MODULE_AUTHOR("Andy Fleming");
···
 		return err;
 
 	mdelay(500);
+
+	return 0;
+}
+
+static int m88e3016_config_init(struct phy_device *phydev)
+{
+	int reg;
+
+	/* Enable Scrambler and Auto-Crossover */
+	reg = phy_read(phydev, MII_88E3016_PHY_SPEC_CTRL);
+	if (reg < 0)
+		return reg;
+
+	reg &= ~MII_88E3016_DISABLE_SCRAMBLER;
+	reg |= MII_88E3016_AUTO_MDIX_CROSSOVER;
+
+	reg = phy_write(phydev, MII_88E3016_PHY_SPEC_CTRL, reg);
+	if (reg < 0)
+		return reg;
 
 	return 0;
 }
···
 	return 0;
 }
 
+static int marvell_aneg_done(struct phy_device *phydev)
+{
+	int retval = phy_read(phydev, MII_M1011_PHY_STATUS);
+	return (retval < 0) ? retval : (retval & MII_M1011_PHY_STATUS_RESOLVED);
+}
+
 static int m88e1121_did_interrupt(struct phy_device *phydev)
 {
 	int imask;
···
 		.suspend = &genphy_suspend,
 		.driver = { .owner = THIS_MODULE },
 	},
+	{
+		.phy_id = MARVELL_PHY_ID_88E3016,
+		.phy_id_mask = MARVELL_PHY_ID_MASK,
+		.name = "Marvell 88E3016",
+		.features = PHY_BASIC_FEATURES,
+		.flags = PHY_HAS_INTERRUPT,
+		.config_aneg = &genphy_config_aneg,
+		.config_init = &m88e3016_config_init,
+		.aneg_done = &marvell_aneg_done,
+		.read_status = &marvell_read_status,
+		.ack_interrupt = &marvell_ack_interrupt,
+		.config_intr = &marvell_config_intr,
+		.did_interrupt = &m88e1121_did_interrupt,
+		.resume = &genphy_resume,
+		.suspend = &genphy_suspend,
+		.driver = { .owner = THIS_MODULE },
+	},
 };
 
 static int __init marvell_init(void)
···
 	{ MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
 	{ MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
 	{ MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E3016, MARVELL_PHY_ID_MASK },
 	{ }
 };
 

include/linux/marvell_phy.h

···
 #define MARVELL_PHY_ID_88E1318S		0x01410e90
 #define MARVELL_PHY_ID_88E1116R		0x01410e40
 #define MARVELL_PHY_ID_88E1510		0x01410dd0
+#define MARVELL_PHY_ID_88E3016		0x01410e60
 
 /* struct phy_device dev_flags definitions */
 #define MARVELL_PHY_M1145_FLAGS_RESISTANCE	0x00000001