60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2019 MediaTek Inc.
|
||
|
|
*/
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/phy.h>
|
||
|
|
#include <linux/of.h>
|
||
|
|
|
||
|
|
#define PHY_ID_TJA1100 0x0180dc48
|
||
|
|
#define TJA1100_LINKUP BIT(15)
|
||
|
|
|
||
|
|
static int tja1100_config_init(struct phy_device *phydev)
|
||
|
|
{
|
||
|
|
phydev->supported = SUPPORTED_100baseT_Full;
|
||
|
|
phydev->advertising = SUPPORTED_100baseT_Full;
|
||
|
|
phydev->state = PHY_NOLINK;
|
||
|
|
phydev->autoneg = AUTONEG_DISABLE;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tja1100_read_status(struct phy_device *phydev)
|
||
|
|
{
|
||
|
|
int val;
|
||
|
|
|
||
|
|
phydev->duplex = 1;
|
||
|
|
phydev->pause = 0;
|
||
|
|
phydev->speed = SPEED_100;
|
||
|
|
|
||
|
|
val = phy_read(phydev, MII_RESV1);
|
||
|
|
if (val < 0)
|
||
|
|
return val;
|
||
|
|
|
||
|
|
if (val & TJA1100_LINKUP)
|
||
|
|
phydev->link = 1;
|
||
|
|
else
|
||
|
|
phydev->link = 0;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct phy_driver nxp_tja1100_driver[] = {
|
||
|
|
{
|
||
|
|
.phy_id = PHY_ID_TJA1100,
|
||
|
|
.phy_id_mask = 0xffffffff,
|
||
|
|
.name = "NXP TJA1100",
|
||
|
|
.config_init = tja1100_config_init,
|
||
|
|
.read_status = tja1100_read_status,
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
module_phy_driver(nxp_tja1100_driver);
|
||
|
|
|
||
|
|
static struct mdio_device_id __maybe_unused nxp_tbl[] = {
|
||
|
|
{ PHY_ID_TJA1100, 0xffffffff },
|
||
|
|
{ }
|
||
|
|
};
|
||
|
|
|
||
|
|
MODULE_DEVICE_TABLE(mdio, nxp_tbl);
|