Commit dbb7a95d authored by Chaithrika U S's avatar Chaithrika U S Committed by David S. Miller
Browse files

phy: Add LSI ET1011C PHY driver



Adds LSI ET1011C PHY driver. 
This driver is used by TI DM646x EVM.
Signed-off-by: default avatarChaithrika U S <chaithrika@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e19caae7
......@@ -77,6 +77,11 @@ config STE10XP
---help---
This is the driver for the STe100p and STe101p PHYs.
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
......
......@@ -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_GPIO) += mdio-gpio.o
......
/*
* 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);
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