tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
phylib: Add Realtek 821x eth PHY support
this PHY present on the MPC8315E and MPC837xE RDB boards.
Signed-off-by: Johnson Leung <r58129@freescale.com>
Signed-off-by: Kevin Lam <r43770@freescale.com>
Signed-off-by: Joe D'Abbraccio <ljd015@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Johnson Leung
and committed by
David S. Miller
097c2aa8
6344f052
+86
+5
drivers/net/phy/Kconfig
+5
drivers/net/phy/Kconfig
···
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---help---
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Currently supports the IP175C PHY.
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config REALTEK_PHY
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tristate "Drivers for Realtek PHYs"
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---help---
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Supports the Realtek 821x PHY.
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config FIXED_PHY
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bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
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---help---
+1
drivers/net/phy/Makefile
+1
drivers/net/phy/Makefile
+80
drivers/net/phy/realtek.c
+80
drivers/net/phy/realtek.c
···
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/*
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* drivers/net/phy/realtek.c
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*
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* Driver for Realtek PHYs
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*
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* Author: Johnson Leung <r58129@freescale.com>
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*
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* Copyright (c) 2004 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/phy.h>
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#define RTL821x_PHYSR 0x11
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#define RTL821x_PHYSR_DUPLEX 0x2000
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#define RTL821x_PHYSR_SPEED 0xc000
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#define RTL821x_INER 0x12
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#define RTL821x_INER_INIT 0x6400
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#define RTL821x_INSR 0x13
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MODULE_DESCRIPTION("Realtek PHY driver");
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MODULE_AUTHOR("Johnson Leung");
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MODULE_LICENSE("GPL");
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static int rtl821x_ack_interrupt(struct phy_device *phydev)
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{
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int err;
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err = phy_read(phydev, RTL821x_INSR);
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return (err < 0) ? err : 0;
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}
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static int rtl821x_config_intr(struct phy_device *phydev)
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{
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int err;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
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err = phy_write(phydev, RTL821x_INER,
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RTL821x_INER_INIT);
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else
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err = phy_write(phydev, RTL821x_INER, 0);
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return err;
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}
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/* RTL8211B */
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static struct phy_driver rtl821x_driver = {
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.phy_id = 0x001cc912,
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.name = "RTL821x Gigabit Ethernet",
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.phy_id_mask = 0x001fffff,
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.features = PHY_GBIT_FEATURES,
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.flags = PHY_HAS_INTERRUPT,
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.config_aneg = &genphy_config_aneg,
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.read_status = &genphy_read_status,
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.ack_interrupt = &rtl821x_ack_interrupt,
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.config_intr = &rtl821x_config_intr,
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.driver = { .owner = THIS_MODULE,},
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};
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static int __init realtek_init(void)
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{
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int ret;
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ret = phy_driver_register(&rtl821x_driver);
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return ret;
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}
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static void __exit realtek_exit(void)
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{
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phy_driver_unregister(&rtl821x_driver);
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}
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module_init(realtek_init);
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module_exit(realtek_exit);