mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-17 00:33:06 +00:00
903d384d40
In commit <a058052c358c> [net: phy: do not read configuration register on reset], phy_reset() will clear the BMCR register. Bit 12(AUTO_NEGOTIATION) is cleared too. It causes auto-negotiation timeout error on Atheros's PHY AR8033. To fix this problem, genphy_config_aneg() and genphy_restart_aneg() needs to be called in ar8035_config() to enable and restart auto-negotiation. Signed-off-by: Alison Wang <alison.wang@nxp.com> Acked-by: Stefan Agner <stefan@agner.ch> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*
|
|
* Atheros PHY drivers
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* Copyright 2011, 2013 Freescale Semiconductor, Inc.
|
|
* author Andy Fleming
|
|
*/
|
|
#include <phy.h>
|
|
|
|
static int ar8021_config(struct phy_device *phydev)
|
|
{
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x3D47);
|
|
|
|
phydev->supported = phydev->drv->features;
|
|
return 0;
|
|
}
|
|
|
|
static int ar8035_config(struct phy_device *phydev)
|
|
{
|
|
int regval;
|
|
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x0007);
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
|
|
regval = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, (regval|0x0018));
|
|
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
|
|
regval = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
|
|
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, (regval|0x0100));
|
|
|
|
phydev->supported = phydev->drv->features;
|
|
|
|
genphy_config_aneg(phydev);
|
|
genphy_restart_aneg(phydev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct phy_driver AR8021_driver = {
|
|
.name = "AR8021",
|
|
.uid = 0x4dd040,
|
|
.mask = 0x4ffff0,
|
|
.features = PHY_GBIT_FEATURES,
|
|
.config = ar8021_config,
|
|
.startup = genphy_startup,
|
|
.shutdown = genphy_shutdown,
|
|
};
|
|
|
|
static struct phy_driver AR8031_driver = {
|
|
.name = "AR8031/AR8033",
|
|
.uid = 0x4dd074,
|
|
.mask = 0xffffffef,
|
|
.features = PHY_GBIT_FEATURES,
|
|
.config = ar8035_config,
|
|
.startup = genphy_startup,
|
|
.shutdown = genphy_shutdown,
|
|
};
|
|
|
|
static struct phy_driver AR8035_driver = {
|
|
.name = "AR8035",
|
|
.uid = 0x4dd072,
|
|
.mask = 0xffffffef,
|
|
.features = PHY_GBIT_FEATURES,
|
|
.config = ar8035_config,
|
|
.startup = genphy_startup,
|
|
.shutdown = genphy_shutdown,
|
|
};
|
|
|
|
int phy_atheros_init(void)
|
|
{
|
|
phy_register(&AR8021_driver);
|
|
phy_register(&AR8031_driver);
|
|
phy_register(&AR8035_driver);
|
|
|
|
return 0;
|
|
}
|