Commit f95be180 authored by Giuseppe Cavallaro's avatar Giuseppe Cavallaro Committed by David S. Miller

phy: add the ST ste10Xp PHYs

This patch adds the STMicroelectronics ste10xp PHY device driver.
It supports both the ste100p and the ste101p devices.

Suspend/resume alredy added.
Signed-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4621bf12
...@@ -71,6 +71,12 @@ config NATIONAL_PHY ...@@ -71,6 +71,12 @@ config NATIONAL_PHY
---help--- ---help---
Currently supports the DP83865 PHY. Currently supports the DP83865 PHY.
config STE10XP
depends on PHYLIB
tristate "Driver for STMicroelectronics STe10Xp PHYs"
---help---
This is the driver for the STe100p and STe101p PHYs.
config FIXED_PHY config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
depends on PHYLIB=y depends on PHYLIB=y
......
...@@ -17,3 +17,4 @@ obj-$(CONFIG_FIXED_PHY) += fixed.o ...@@ -17,3 +17,4 @@ obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o
obj-$(CONFIG_NATIONAL_PHY) += national.o obj-$(CONFIG_NATIONAL_PHY) += national.o
obj-$(CONFIG_STE10XP) += ste10Xp.o
/*
* drivers/net/phy/ste10Xp.c
*
* Driver for STMicroelectronics STe10Xp PHYs
*
* Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*
* Copyright (c) 2008 STMicroelectronics Limited
*
* 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/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#define MII_XCIIS 0x11 /* Configuration Info IRQ & Status Reg */
#define MII_XIE 0x12 /* Interrupt Enable Register */
#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
#define STE101P_PHY_ID 0x00061c50
#define STE100P_PHY_ID 0x1c040011
static int ste10Xp_config_init(struct phy_device *phydev)
{
int value, err;
/* Software Reset PHY */
value = phy_read(phydev, MII_BMCR);
if (value < 0)
return value;
value |= BMCR_RESET;
err = phy_write(phydev, MII_BMCR, value);
if (err < 0)
return err;
do {
value = phy_read(phydev, MII_BMCR);
} while (value & BMCR_RESET);
return 0;
}
static int ste10Xp_config_intr(struct phy_device *phydev)
{
int err, value;
if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
/* Enable all STe101P interrupts (PR12) */
err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
/* clear any pending interrupts */
if (err == 0) {
value = phy_read(phydev, MII_XCIIS);
if (value < 0)
err = value;
}
} else
err = phy_write(phydev, MII_XIE, 0);
return err;
}
static int ste10Xp_ack_interrupt(struct phy_device *phydev)
{
int err = phy_read(phydev, MII_XCIIS);
if (err < 0)
return err;
return 0;
}
static struct phy_driver ste101p_pdriver = {
.phy_id = STE101P_PHY_ID,
.phy_id_mask = 0xfffffff0,
.name = "STe101p",
.features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
.flags = PHY_HAS_INTERRUPT,
.config_init = ste10Xp_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = ste10Xp_ack_interrupt,
.config_intr = ste10Xp_config_intr,
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = {.owner = THIS_MODULE,}
};
static struct phy_driver ste100p_pdriver = {
.phy_id = STE100P_PHY_ID,
.phy_id_mask = 0xffffffff,
.name = "STe100p",
.features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
.flags = PHY_HAS_INTERRUPT,
.config_init = ste10Xp_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = ste10Xp_ack_interrupt,
.config_intr = ste10Xp_config_intr,
.suspend = genphy_suspend,
.resume = genphy_resume,
.driver = {.owner = THIS_MODULE,}
};
static int __init ste10Xp_init(void)
{
int retval;
retval = phy_driver_register(&ste100p_pdriver);
if (retval < 0)
return retval;
return phy_driver_register(&ste101p_pdriver);
}
static void __exit ste10Xp_exit(void)
{
phy_driver_unregister(&ste100p_pdriver);
phy_driver_unregister(&ste101p_pdriver);
}
module_init(ste10Xp_init);
module_exit(ste10Xp_exit);
MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
MODULE_LICENSE("GPL");
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