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Message-Id: <1228816779-3683-1-git-send-email-chaithrika@ti.com>
Date: Tue, 9 Dec 2008 15:29:39 +0530
From: chaithrika@...com
To: netdev@...r.kernel.org
Cc: davinci-linux-open-source@...ux.davincidsp.com,
Chaithrika U S <chaithrika@...com>
Subject: [PATCH] phy: Add LSI ET1011C PHY driver
From: Chaithrika U S <chaithrika@...com>
Adds LSI ET1011C PHY driver.
This driver is used by TI DM646x EVM.
Signed-off-by: Chaithrika U S <chaithrika@...com>
---
drivers/net/phy/Kconfig | 5 ++
drivers/net/phy/Makefile | 1 +
drivers/net/phy/et1011c.c | 113 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 119 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/phy/et1011c.c
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index d55932a..65dc771 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -66,6 +66,11 @@ config REALTEK_PHY
---help---
Supports the Realtek 821x PHY.
+config LSI_ET1011C_PHY
+ tristate "Driver for LSI ET1011C PHY"
+ ---help---
+ Supports the LSI ET1011C PHY.
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index eee329f..ebafcfb 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_VITESSE_PHY) += vitesse.o
obj-$(CONFIG_BROADCOM_PHY) += broadcom.o
obj-$(CONFIG_ICPLUS_PHY) += icplus.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
+obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
obj-$(CONFIG_MDIO_OF_GPIO) += mdio-ofgpio.o
diff --git a/drivers/net/phy/et1011c.c b/drivers/net/phy/et1011c.c
new file mode 100644
index 0000000..b031fa2
--- /dev/null
+++ b/drivers/net/phy/et1011c.c
@@ -0,0 +1,113 @@
+/*
+ * drivers/net/phy/et1011c.c
+ *
+ * Driver for LSI ET1011C PHYs
+ *
+ * Author: Chaithrika U S
+ *
+ * Copyright (c) 2008 Texas Instruments
+ *
+ * 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.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <asm/irq.h>
+
+#define ET1011C_STATUS_REG (0x1A)
+#define ET1011C_CONFIG_REG (0x16)
+#define ET1011C_SPEED_MASK (0x0300)
+#define ET1011C_GIGABIT_SPEED (0x0200)
+#define ET1011C_TX_FIFO_MASK (0x3000)
+#define ET1011C_TX_FIFO_DEPTH_8 (0x0000)
+#define ET1011C_TX_FIFO_DEPTH_16 (0x1000)
+#define ET1011C_INTERFACE_MASK (0x0007)
+#define ET1011C_GMII_INTERFACE (0x0002)
+#define ET1011C_SYS_CLK_EN (0x01 << 4)
+
+
+MODULE_DESCRIPTION("LSI ET1011C PHY driver");
+MODULE_AUTHOR("Chaithrika U S");
+MODULE_LICENSE("GPL");
+
+static int et1011c_config_aneg(struct phy_device *phydev)
+{
+ int ctl = 0;
+ ctl = phy_read(phydev, MII_BMCR);
+ if (ctl < 0)
+ return ctl;
+ ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 |
+ BMCR_ANENABLE);
+ /* First clear the PHY */
+ phy_write(phydev, MII_BMCR, ctl | BMCR_RESET);
+
+ return genphy_config_aneg(phydev);
+}
+
+static int et1011c_read_status(struct phy_device *phydev)
+{
+ int ret;
+ u32 val;
+ static int speed;
+ ret = genphy_read_status(phydev);
+
+ if (speed != phydev->speed) {
+ speed = phydev->speed;
+ val = phy_read(phydev, ET1011C_STATUS_REG);
+ if ((val & ET1011C_SPEED_MASK) ==
+ ET1011C_GIGABIT_SPEED) {
+ val = phy_read(phydev, ET1011C_CONFIG_REG);
+ val &= ~ET1011C_TX_FIFO_MASK;
+ phy_write(phydev, ET1011C_CONFIG_REG, val\
+ | ET1011C_GMII_INTERFACE\
+ | ET1011C_SYS_CLK_EN\
+ | ET1011C_TX_FIFO_DEPTH_16);
+
+ }
+ }
+ return ret;
+}
+
+static struct phy_driver et1011c_driver = {
+ .phy_id = 0x0282f014,
+ .name = "ET1011C",
+ .phy_id_mask = 0xfffffff0,
+ .features = (PHY_BASIC_FEATURES | SUPPORTED_1000baseT_Full),
+ .flags = PHY_POLL,
+ .config_aneg = et1011c_config_aneg,
+ .read_status = et1011c_read_status,
+ .driver = { .owner = THIS_MODULE,},
+};
+
+static int __init et1011c_init(void)
+{
+ return phy_driver_register(&et1011c_driver);
+}
+
+static void __exit et1011c_exit(void)
+{
+ phy_driver_unregister(&et1011c_driver);
+}
+
+module_init(et1011c_init);
+module_exit(et1011c_exit);
--
1.5.4.1
--
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