mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 09:52:03 +07:00
dcdecdcfe1
Recently genphy_read_abilities() has been added that dynamically detects clause 22 PHY abilities. I *think* this detection should work with all supported PHY's, at least for the ones with basic features sets, i.e. PHY_BASIC_FEATURES and PHY_GBIT_FEATURES. So let's remove setting these features explicitly and rely on phylib feature detection. I don't have access to most of these PHY's, therefore I'd appreciate regression testing. v2: - make the feature constant a comment so that readers know which features are supported by the respective PHY Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* drivers/net/phy/cicada.c
|
|
*
|
|
* Driver for Cicada PHYs
|
|
*
|
|
* Author: Andy Fleming
|
|
*
|
|
* Copyright (c) 2004 Freescale Semiconductor, Inc.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/string.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/unistd.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 <asm/irq.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
/* Cicada Extended Control Register 1 */
|
|
#define MII_CIS8201_EXT_CON1 0x17
|
|
#define MII_CIS8201_EXTCON1_INIT 0x0000
|
|
|
|
/* Cicada Interrupt Mask Register */
|
|
#define MII_CIS8201_IMASK 0x19
|
|
#define MII_CIS8201_IMASK_IEN 0x8000
|
|
#define MII_CIS8201_IMASK_SPEED 0x4000
|
|
#define MII_CIS8201_IMASK_LINK 0x2000
|
|
#define MII_CIS8201_IMASK_DUPLEX 0x1000
|
|
#define MII_CIS8201_IMASK_MASK 0xf000
|
|
|
|
/* Cicada Interrupt Status Register */
|
|
#define MII_CIS8201_ISTAT 0x1a
|
|
#define MII_CIS8201_ISTAT_STATUS 0x8000
|
|
#define MII_CIS8201_ISTAT_SPEED 0x4000
|
|
#define MII_CIS8201_ISTAT_LINK 0x2000
|
|
#define MII_CIS8201_ISTAT_DUPLEX 0x1000
|
|
|
|
/* Cicada Auxiliary Control/Status Register */
|
|
#define MII_CIS8201_AUX_CONSTAT 0x1c
|
|
#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
|
|
#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
|
|
#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
|
|
#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
|
|
#define MII_CIS8201_AUXCONSTAT_100 0x0008
|
|
|
|
MODULE_DESCRIPTION("Cicadia PHY driver");
|
|
MODULE_AUTHOR("Andy Fleming");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static int cis820x_config_init(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT,
|
|
MII_CIS8201_AUXCONSTAT_INIT);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_write(phydev, MII_CIS8201_EXT_CON1,
|
|
MII_CIS8201_EXTCON1_INIT);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int cis820x_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int err = phy_read(phydev, MII_CIS8201_ISTAT);
|
|
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
static int cis820x_config_intr(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
|
err = phy_write(phydev, MII_CIS8201_IMASK,
|
|
MII_CIS8201_IMASK_MASK);
|
|
else
|
|
err = phy_write(phydev, MII_CIS8201_IMASK, 0);
|
|
|
|
return err;
|
|
}
|
|
|
|
/* Cicada 8201, a.k.a Vitesse VSC8201 */
|
|
static struct phy_driver cis820x_driver[] = {
|
|
{
|
|
.phy_id = 0x000fc410,
|
|
.name = "Cicada Cis8201",
|
|
.phy_id_mask = 0x000ffff0,
|
|
/* PHY_GBIT_FEATURES */
|
|
.config_init = &cis820x_config_init,
|
|
.ack_interrupt = &cis820x_ack_interrupt,
|
|
.config_intr = &cis820x_config_intr,
|
|
}, {
|
|
.phy_id = 0x000fc440,
|
|
.name = "Cicada Cis8204",
|
|
.phy_id_mask = 0x000fffc0,
|
|
/* PHY_GBIT_FEATURES */
|
|
.config_init = &cis820x_config_init,
|
|
.ack_interrupt = &cis820x_ack_interrupt,
|
|
.config_intr = &cis820x_config_intr,
|
|
} };
|
|
|
|
module_phy_driver(cis820x_driver);
|
|
|
|
static struct mdio_device_id __maybe_unused cicada_tbl[] = {
|
|
{ 0x000fc410, 0x000ffff0 },
|
|
{ 0x000fc440, 0x000fffc0 },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(mdio, cicada_tbl);
|