1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
new file mode 100644
index 0000000000..b7e2753f7b
--- /dev/null
+++ b/drivers/net/phy/realtek.c
@@ -0,0 +1,130 @@
+/*
+ * RealTek 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 <config.h>
+#include <common.h>
+#include <phy.h>
+
+#define PHY_AUTONEGOTIATE_TIMEOUT 5000
+
+/* RTL8211B PHY Status Register */
+#define MIIM_RTL8211B_PHY_STATUS       0x11
+#define MIIM_RTL8211B_PHYSTAT_SPEED    0xc000
+#define MIIM_RTL8211B_PHYSTAT_GBIT     0x8000
+#define MIIM_RTL8211B_PHYSTAT_100      0x4000
+#define MIIM_RTL8211B_PHYSTAT_DUPLEX   0x2000
+#define MIIM_RTL8211B_PHYSTAT_SPDDONE  0x0800
+#define MIIM_RTL8211B_PHYSTAT_LINK     0x0400
+
+
+/* RealTek RTL8211B */
+static int rtl8211b_config(struct phy_device *phydev)
+{
+	phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
+
+	genphy_config_aneg(phydev);
+
+	return 0;
+}
+
+static int rtl8211b_parse_status(struct phy_device *phydev)
+{
+	unsigned int speed;
+	unsigned int mii_reg;
+
+	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211B_PHY_STATUS);
+
+	if (!(mii_reg & MIIM_RTL8211B_PHYSTAT_SPDDONE)) {
+		int i = 0;
+
+		/* in case of timeout ->link is cleared */
+		phydev->link = 1;
+		puts("Waiting for PHY realtime link");
+		while (!(mii_reg & MIIM_RTL8211B_PHYSTAT_SPDDONE)) {
+			/* Timeout reached ? */
+			if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
+				puts(" TIMEOUT !\n");
+				phydev->link = 0;
+				break;
+			}
+
+			if ((i++ % 1000) == 0)
+				putc('.');
+			udelay(1000);	/* 1 ms */
+			mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
+					MIIM_RTL8211B_PHY_STATUS);
+		}
+		puts(" done\n");
+		udelay(500000);	/* another 500 ms (results in faster booting) */
+	} else {
+		if (mii_reg & MIIM_RTL8211B_PHYSTAT_LINK)
+			phydev->link = 1;
+		else
+			phydev->link = 0;
+	}
+
+	if (mii_reg & MIIM_RTL8211B_PHYSTAT_DUPLEX)
+		phydev->duplex = DUPLEX_FULL;
+	else
+		phydev->duplex = DUPLEX_HALF;
+
+	speed = (mii_reg & MIIM_RTL8211B_PHYSTAT_SPEED);
+
+	switch (speed) {
+	case MIIM_RTL8211B_PHYSTAT_GBIT:
+		phydev->speed = SPEED_1000;
+		break;
+	case MIIM_RTL8211B_PHYSTAT_100:
+		phydev->speed = SPEED_100;
+		break;
+	default:
+		phydev->speed = SPEED_10;
+	}
+
+	return 0;
+}
+
+static int rtl8211b_startup(struct phy_device *phydev)
+{
+	/* Read the Status (2x to make sure link is right) */
+	genphy_update_link(phydev);
+	rtl8211b_parse_status(phydev);
+
+	return 0;
+}
+
+static struct phy_driver RTL8211B_driver = {
+	.name = "RealTek RTL8211B",
+	.uid = 0x1cc910,
+	.mask = 0xfffff0,
+	.features = PHY_GBIT_FEATURES,
+	.config = &rtl8211b_config,
+	.startup = &rtl8211b_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+int phy_realtek_init(void)
+{
+	phy_register(&RTL8211B_driver);
+
+	return 0;
+}