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// SPDX-License-Identifier: GPL-2.0+
/*
* Micrel PHY drivers
*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
* author Andy Fleming
* (C) 2012 NetModule AG, David Andrey, added KSZ9031
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <fdtdec.h>
#include <micrel.h>
#include <phy.h>
static struct phy_driver KSZ804_driver = {
.name = "Micrel KSZ804",
.uid = 0x221510,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
.config = &genphy_config,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
#define MII_KSZPHY_OMSO 0x16
#define KSZPHY_OMSO_B_CAST_OFF (1 << 9)
static int ksz_genconfig_bcastoff(struct phy_device *phydev)
{
int ret;
ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
if (ret < 0)
return ret;
ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
ret | KSZPHY_OMSO_B_CAST_OFF);
if (ret < 0)
return ret;
return genphy_config(phydev);
}
static struct phy_driver KSZ8031_driver = {
.name = "Micrel KSZ8021/KSZ8031",
.uid = 0x221550,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
.config = &ksz_genconfig_bcastoff,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
/**
* KSZ8051
*/
#define MII_KSZ8051_PHY_OMSO 0x16
#define MII_KSZ8051_PHY_OMSO_NAND_TREE_ON (1 << 5)
static int ksz8051_config(struct phy_device *phydev)
{
unsigned val;
/* Disable NAND-tree */
val = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO);
val &= ~MII_KSZ8051_PHY_OMSO_NAND_TREE_ON;
phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO, val);
return genphy_config(phydev);
}
static struct phy_driver KSZ8051_driver = {
.name = "Micrel KSZ8051",
.uid = 0x221550,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
.config = &ksz8051_config,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
static struct phy_driver KSZ8081_driver = {
.name = "Micrel KSZ8081",
.uid = 0x221560,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
.config = &ksz_genconfig_bcastoff,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
/**
* KSZ8895
*/
static unsigned short smireg_to_phy(unsigned short reg)
{
return ((reg & 0xc0) >> 3) + 0x06 + ((reg & 0x20) >> 5);
}
static unsigned short smireg_to_reg(unsigned short reg)
{
return reg & 0x1F;
}
static void ksz8895_write_smireg(struct phy_device *phydev, int smireg, int val)
{
phydev->bus->write(phydev->bus, smireg_to_phy(smireg), MDIO_DEVAD_NONE,
smireg_to_reg(smireg), val);
}
#if 0
static int ksz8895_read_smireg(struct phy_device *phydev, int smireg)
{
return phydev->bus->read(phydev->bus, smireg_to_phy(smireg),
MDIO_DEVAD_NONE, smireg_to_reg(smireg));
}
#endif
int ksz8895_config(struct phy_device *phydev)
{
/* we are connected directly to the switch without
* dedicated PHY. SCONF1 == 001 */
phydev->link = 1;
phydev->duplex = DUPLEX_FULL;
phydev->speed = SPEED_100;
/* Force the switch to start */
ksz8895_write_smireg(phydev, 1, 1);
return 0;
}
static int ksz8895_startup(struct phy_device *phydev)
{
return 0;
}
static struct phy_driver ksz8895_driver = {
.name = "Micrel KSZ8895/KSZ8864",
.uid = 0x221450,
.mask = 0xffffe1,
.features = PHY_BASIC_FEATURES,
.config = &ksz8895_config,
.startup = &ksz8895_startup,
.shutdown = &genphy_shutdown,
};
/* Micrel used the exact same part number for the KSZ9021. */
static struct phy_driver KS8721_driver = {
.name = "Micrel KS8721BL",
.uid = 0x221610,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
.config = &genphy_config,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
int ksz886x_config(struct phy_device *phydev)
{
/* we are connected directly to the switch without
* dedicated PHY. */
phydev->link = 1;
phydev->duplex = DUPLEX_FULL;
phydev->speed = SPEED_100;
return 0;
}
static int ksz886x_startup(struct phy_device *phydev)
{
return 0;
}
static struct phy_driver ksz886x_driver = {
.name = "Micrel KSZ886x Switch",
.uid = 0x00221430,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
.config = &ksz886x_config,
.startup = &ksz886x_startup,
.shutdown = &genphy_shutdown,
};
int phy_micrel_ksz8xxx_init(void)
{
phy_register(&KSZ804_driver);
phy_register(&KSZ8031_driver);
phy_register(&KSZ8051_driver);
phy_register(&KSZ8081_driver);
phy_register(&KS8721_driver);
phy_register(&ksz8895_driver);
phy_register(&ksz886x_driver);
return 0;
}
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