1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c
new file mode 100644
index 0000000..d67bbdd
--- /dev/null
+++ b/drivers/net/phy/lxt.c
@@ -0,0 +1,87 @@
+/*
+ * LXT PHY drivers
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * author Andy Fleming
+ *
+ */
+#include <phy.h>
+
+/* LXT971 Status 2 registers */
+#define MIIM_LXT971_SR2                     0x11  /* Status Register 2  */
+#define MIIM_LXT971_SR2_SPEED_MASK 0x4200
+#define MIIM_LXT971_SR2_10HDX     0x0000  /*  10 Mbit half duplex selected */
+#define MIIM_LXT971_SR2_10FDX     0x0200  /*  10 Mbit full duplex selected */
+#define MIIM_LXT971_SR2_100HDX    0x4000  /* 100 Mbit half duplex selected */
+#define MIIM_LXT971_SR2_100FDX    0x4200  /* 100 Mbit full duplex selected */
+
+
+/* LXT971 */
+static int lxt971_parse_status(struct phy_device *phydev)
+{
+	int mii_reg;
+	int speed;
+
+	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_LXT971_SR2);
+	speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;
+
+	switch (speed) {
+	case MIIM_LXT971_SR2_10HDX:
+		phydev->speed = SPEED_10;
+		phydev->duplex = DUPLEX_HALF;
+		break;
+	case MIIM_LXT971_SR2_10FDX:
+		phydev->speed = SPEED_10;
+		phydev->duplex = DUPLEX_FULL;
+		break;
+	case MIIM_LXT971_SR2_100HDX:
+		phydev->speed = SPEED_100;
+		phydev->duplex = DUPLEX_HALF;
+		break;
+	default:
+		phydev->speed = SPEED_100;
+		phydev->duplex = DUPLEX_FULL;
+	}
+
+	return 0;
+}
+
+static int lxt971_startup(struct phy_device *phydev)
+{
+	genphy_update_link(phydev);
+	lxt971_parse_status(phydev);
+
+	return 0;
+}
+
+static struct phy_driver LXT971_driver = {
+	.name = "LXT971",
+	.uid = 0x1378e0,
+	.mask = 0xfffff0,
+	.features = PHY_BASIC_FEATURES,
+	.config = &genphy_config_aneg,
+	.startup = &lxt971_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+int phy_lxt_init(void)
+{
+	phy_register(&LXT971_driver);
+
+	return 0;
+}