mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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be01da72b1
Rather than have each driver set the driver owner field, do it once in the core code. This will also help with later changes, when the device structure will move. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/*
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* Driver for AMD am79c PHYs
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*
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* Author: Heiko Schocher <hs@denx.de>
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*
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* Copyright (c) 2011 DENX Software Engineering GmbH
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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/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/mii.h>
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#include <linux/phy.h>
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#define PHY_ID_AM79C874 0x0022561b
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#define MII_AM79C_IR 17 /* Interrupt Status/Control Register */
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#define MII_AM79C_IR_EN_LINK 0x0400 /* IR enable Linkstate */
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#define MII_AM79C_IR_EN_ANEG 0x0100 /* IR enable Aneg Complete */
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#define MII_AM79C_IR_IMASK_INIT (MII_AM79C_IR_EN_LINK | MII_AM79C_IR_EN_ANEG)
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MODULE_DESCRIPTION("AMD PHY driver");
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MODULE_AUTHOR("Heiko Schocher <hs@denx.de>");
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MODULE_LICENSE("GPL");
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static int am79c_ack_interrupt(struct phy_device *phydev)
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{
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int err;
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err = phy_read(phydev, MII_BMSR);
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if (err < 0)
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return err;
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err = phy_read(phydev, MII_AM79C_IR);
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if (err < 0)
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return err;
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return 0;
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}
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static int am79c_config_init(struct phy_device *phydev)
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{
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return 0;
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}
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static int am79c_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, MII_AM79C_IR, MII_AM79C_IR_IMASK_INIT);
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else
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err = phy_write(phydev, MII_AM79C_IR, 0);
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return err;
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}
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static struct phy_driver am79c_driver[] = { {
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.phy_id = PHY_ID_AM79C874,
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.name = "AM79C874",
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.phy_id_mask = 0xfffffff0,
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.features = PHY_BASIC_FEATURES,
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.flags = PHY_HAS_INTERRUPT,
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.config_init = am79c_config_init,
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.config_aneg = genphy_config_aneg,
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.read_status = genphy_read_status,
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.ack_interrupt = am79c_ack_interrupt,
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.config_intr = am79c_config_intr,
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} };
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module_phy_driver(am79c_driver);
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static struct mdio_device_id __maybe_unused amd_tbl[] = {
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{ PHY_ID_AM79C874, 0xfffffff0 },
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{ }
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};
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MODULE_DEVICE_TABLE(mdio, amd_tbl);
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