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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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4e4f10f649
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
/*
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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);
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static struct mdio_device_id realtek_tbl[] = {
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{ 0x001cc912, 0x001fffff },
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{ }
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};
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MODULE_DEVICE_TABLE(mdio, realtek_tbl);
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