Adds an ET1011C PHY driver which is derived from
the current Linux kernel PHY driver. Note that an
errata workaround config option is implemented to
allow for TX_CLK to be enabled even when gigabit
mode is negotiated. This workaround is used on the
TI814x-EVM.
Signed-off-by: Matt Porter mpor...@ti.com
---
drivers/net/phy/Makefile |1 +
drivers/net/phy/et1011c.c | 110 +
drivers/net/phy/phy.c |3 ++
include/phy.h |1 +
4 files changed, 115 insertions(+)
create mode 100644 drivers/net/phy/et1011c.c
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 5e90d70..af5f4b8 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -34,6 +34,7 @@ COBJS-$(CONFIG_PHYLIB_10G) += generic_10g.o
COBJS-$(CONFIG_PHY_ATHEROS) += atheros.o
COBJS-$(CONFIG_PHY_BROADCOM) += broadcom.o
COBJS-$(CONFIG_PHY_DAVICOM) += davicom.o
+COBJS-$(CONFIG_PHY_ET1011C) += et1011c.o
COBJS-$(CONFIG_PHY_LXT) += lxt.o
COBJS-$(CONFIG_PHY_MARVELL) += marvell.o
COBJS-$(CONFIG_PHY_MICREL) += micrel.o
diff --git a/drivers/net/phy/et1011c.c b/drivers/net/phy/et1011c.c
new file mode 100644
index 000..5e22399
--- /dev/null
+++ b/drivers/net/phy/et1011c.c
@@ -0,0 +1,110 @@
+/*
+ * ET1011C PHY driver
+ *
+ * Derived from Linux kernel driver by Chaithrika U S
+ * Copyright (C) 2013, Texas Instruments, Incorporated - http://www.ti.com/
+ *
+ * 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.
+ *
+ */
+#include config.h
+#include phy.h
+
+#define ET1011C_CONFIG_REG (0x16)
+#define ET1011C_TX_FIFO_MASK (0x3 12)
+#define ET1011C_TX_FIFO_DEPTH_8(0x0 12)
+#define ET1011C_TX_FIFO_DEPTH_16 (0x1 12)
+#define ET1011C_INTERFACE_MASK (0x7 0)
+#define ET1011C_GMII_INTERFACE (0x2 0)
+#define ET1011C_SYS_CLK_EN (0x1 4)
+#define ET1011C_TX_CLK_EN (0x1 5)
+
+#define ET1011C_STATUS_REG (0x1A)
+#define ET1011C_DUPLEX_STATUS (0x1 7)
+#define ET1011C_SPEED_MASK (0x3 8)
+#define ET1011C_SPEED_1000 (0x2 8)
+#define ET1011C_SPEED_100 (0x1 8)
+#define ET1011C_SPEED_10 (0x0 8)
+
+static int et1011c_config(struct phy_device *phydev)
+{
+ int ctl = 0;
+ ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
+ if (ctl 0)
+ return ctl;
+ ctl = ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 |
+BMCR_ANENABLE);
+ /* First clear the PHY */
+ phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl | BMCR_RESET);
+
+ return genphy_config_aneg(phydev);
+}
+
+static int et1011c_parse_status(struct phy_device *phydev)
+{
+ int mii_reg;
+ int speed;
+
+ mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, ET1011C_STATUS_REG);
+
+ if (mii_reg ET1011C_DUPLEX_STATUS)
+ phydev-duplex = DUPLEX_FULL;
+ else
+ phydev-duplex = DUPLEX_HALF;
+
+ speed = mii_reg ET1011C_SPEED_MASK;
+ switch (speed) {
+ case ET1011C_SPEED_1000:
+ phydev-speed = SPEED_1000;
+ mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, ET1011C_CONFIG_REG);
+ mii_reg = ~ET1011C_TX_FIFO_MASK;
+ phy_write(phydev, MDIO_DEVAD_NONE, ET1011C_CONFIG_REG,
+ mii_reg |
+ ET1011C_GMII_INTERFACE |
+ ET1011C_SYS_CLK_EN |
+#ifdef CONFIG_PHY_ET1011C_TX_CLK_FIX
+ ET1011C_TX_CLK_EN |
+#endif
+ ET1011C_TX_FIFO_DEPTH_16);
+ break;
+ case ET1011C_SPEED_100:
+ phydev-speed = SPEED_100;
+ break;
+ case ET1011C_SPEED_10:
+ phydev-speed = SPEED_10;
+ break;
+ }
+
+ return 0;
+}
+
+static int et1011c_startup(struct phy_device *phydev)
+{
+ genphy_update_link(phydev);
+ et1011c_parse_status(phydev);
+ return 0;
+}
+
+static struct phy_driver et1011c_driver = {
+ .name = ET1011C,
+ .uid= 0x0282f014,
+ .mask = 0xfff0,
+ .features = PHY_GBIT_FEATURES,
+ .config = et1011c_config,
+ .startup= et1011c_startup,
+};
+
+int phy_et1011c_init(void)
+{
+ phy_register(et1011c_driver);
+
+ return 0;
+}
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index d0ed766..f8c5481 100644
--- a/drivers/net/phy/phy.c
+++
