Merge branch 'phylib' of git://git.denx.de/u-boot-mmc

1 files changed, 98 insertions, 0 deletions

diff --git a/drivers/net/phy/davicom.c b/drivers/net/phy/davicom.c
new file mode 100644
index 000000000..e96a4af03
--- /dev/null
+++ b/drivers/net/phy/davicom.c
@@ -0,0 +1,98 @@
+/*
+ * Davicom 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>
+
+#define MIIM_DM9161_SCR                0x10
+#define MIIM_DM9161_SCR_INIT   0x0610
+
+/* DM9161 Specified Configuration and Status Register */
+#define MIIM_DM9161_SCSR       0x11
+#define MIIM_DM9161_SCSR_100F  0x8000
+#define MIIM_DM9161_SCSR_100H  0x4000
+#define MIIM_DM9161_SCSR_10F   0x2000
+#define MIIM_DM9161_SCSR_10H   0x1000
+
+/* DM9161 10BT Configuration/Status */
+#define MIIM_DM9161_10BTCSR    0x12
+#define MIIM_DM9161_10BTCSR_INIT       0x7800
+
+
+/* Davicom DM9161E */
+static int dm9161_config(struct phy_device *phydev)
+{
+	phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_ISOLATE);
+	/* Do not bypass the scrambler/descrambler */
+	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_DM9161_SCR,
+			MIIM_DM9161_SCR_INIT);
+	/* Clear 10BTCSR to default */
+	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_DM9161_10BTCSR,
+			MIIM_DM9161_10BTCSR_INIT);
+
+	genphy_config_aneg(phydev);
+
+	return 0;
+}
+
+static int dm9161_parse_status(struct phy_device *phydev)
+{
+	int mii_reg;
+
+	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_DM9161_SCSR);
+
+	if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_100H))
+		phydev->speed = SPEED_100;
+	else
+		phydev->speed = SPEED_10;
+
+	if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_10F))
+		phydev->duplex = DUPLEX_FULL;
+	else
+		phydev->duplex = DUPLEX_HALF;
+
+	return 0;
+}
+
+static int dm9161_startup(struct phy_device *phydev)
+{
+	genphy_update_link(phydev);
+	dm9161_parse_status(phydev);
+
+	return 0;
+}
+
+static struct phy_driver DM9161_driver = {
+	.name = "Davicom DM9161E",
+	.uid = 0x181b880,
+	.mask = 0xffffff0,
+	.features = PHY_BASIC_FEATURES,
+	.config = &dm9161_config,
+	.startup = &dm9161_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+int phy_davicom_init(void)
+{
+	phy_register(&DM9161_driver);
+
+	return 0;
+}