// SPDX-License-Identifier: GPL-2.0-only
/*
* PHY drivers for the sungem ethernet driver .
*
* This file could be shared with other drivers .
*
* ( c ) 2002 - 2007 , Benjamin Herrenscmidt ( benh @ kernel . crashing . org )
*
* TODO :
* - Add support for PHYs that provide an IRQ line
* - Eventually moved the entire polling state machine in
* there ( out of the eth driver ) , so that it can easily be
* skipped on PHYs that implement it in hardware .
* - On LXT971 & BCM5201 , Apple uses some chip specific regs
* to read the link status . Figure out why and if it makes
* sense to do the same ( magic aneg ? )
* - Apple has some additional power management code for some
* Broadcom PHYs that they " hide " from the OpenSource version
* of darwin , still need to reverse engineer that
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/delay.h>
#include <linux/of.h>
#include <linux/sungem_phy.h>
/* Link modes of the BCM5400 PHY */
static const int phy_BCM5400_link_table[8 ][3 ] = {
{ 0 , 0 , 0 }, /* No link */
{ 0 , 0 , 0 }, /* 10BT Half Duplex */
{ 1 , 0 , 0 }, /* 10BT Full Duplex */
{ 0 , 1 , 0 }, /* 100BT Half Duplex */
{ 0 , 1 , 0 }, /* 100BT Half Duplex */
{ 1 , 1 , 0 }, /* 100BT Full Duplex*/
{ 1 , 0 , 1 }, /* 1000BT */
{ 1 , 0 , 1 }, /* 1000BT */
};
static inline int __sungem_phy_read(struct mii_phy* phy, int id, int reg)
{
return phy->mdio_read(phy->dev, id, reg);
}
static inline void __sungem_phy_write(struct mii_phy* phy, int id, int reg, int val)
{
phy->mdio_write(phy->dev, id, reg, val);
}
static inline int sungem_phy_read(struct mii_phy* phy, int reg)
{
return phy->mdio_read(phy->dev, phy->mii_id, reg);
}
static inline void sungem_phy_write(struct mii_phy* phy, int reg, int val)
{
phy->mdio_write(phy->dev, phy->mii_id, reg, val);
}
static int reset_one_mii_phy(struct mii_phy* phy, int phy_id)
{
u16 val;
int limit = 10000 ;
val = __sungem_phy_read(phy, phy_id, MII_BMCR);
val &= ~(BMCR_ISOLATE | BMCR_PDOWN);
val |= BMCR_RESET;
__sungem_phy_write(phy, phy_id, MII_BMCR, val);
udelay(100 );
while (--limit) {
val = __sungem_phy_read(phy, phy_id, MII_BMCR);
if ((val & BMCR_RESET) == 0 )
break ;
udelay(10 );
}
if ((val & BMCR_ISOLATE) && limit > 0 )
__sungem_phy_write(phy, phy_id, MII_BMCR, val & ~BMCR_ISOLATE);
return limit <= 0 ;
}
static int bcm5201_init(struct mii_phy* phy)
{
u16 data;
data = sungem_phy_read(phy, MII_BCM5201_MULTIPHY);
data &= ~MII_BCM5201_MULTIPHY_SUPERISOLATE;
sungem_phy_write(phy, MII_BCM5201_MULTIPHY, data);
sungem_phy_write(phy, MII_BCM5201_INTERRUPT, 0 );
return 0 ;
}
static int bcm5201_suspend(struct mii_phy* phy)
{
sungem_phy_write(phy, MII_BCM5201_INTERRUPT, 0 );
sungem_phy_write(phy, MII_BCM5201_MULTIPHY, MII_BCM5201_MULTIPHY_SUPERISOLATE);
return 0 ;
}
static int bcm5221_init(struct mii_phy* phy)
{
u16 data;
data = sungem_phy_read(phy, MII_BCM5221_TEST);
sungem_phy_write(phy, MII_BCM5221_TEST,
data | MII_BCM5221_TEST_ENABLE_SHADOWS);
data = sungem_phy_read(phy, MII_BCM5221_SHDOW_AUX_STAT2);
sungem_phy_write(phy, MII_BCM5221_SHDOW_AUX_STAT2,
data | MII_BCM5221_SHDOW_AUX_STAT2_APD);
data = sungem_phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
sungem_phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
data | MII_BCM5221_SHDOW_AUX_MODE4_CLKLOPWR);
data = sungem_phy_read(phy, MII_BCM5221_TEST);
sungem_phy_write(phy, MII_BCM5221_TEST,
data & ~MII_BCM5221_TEST_ENABLE_SHADOWS);
return 0 ;
}
static int bcm5221_suspend(struct mii_phy* phy)
{
u16 data;
data = sungem_phy_read(phy, MII_BCM5221_TEST);
sungem_phy_write(phy, MII_BCM5221_TEST,
data | MII_BCM5221_TEST_ENABLE_SHADOWS);
data = sungem_phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
sungem_phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
data | MII_BCM5221_SHDOW_AUX_MODE4_IDDQMODE);
return 0 ;
}
static int bcm5241_init(struct mii_phy* phy)
{
u16 data;
data = sungem_phy_read(phy, MII_BCM5221_TEST);
sungem_phy_write(phy, MII_BCM5221_TEST,
data | MII_BCM5221_TEST_ENABLE_SHADOWS);
data = sungem_phy_read(phy, MII_BCM5221_SHDOW_AUX_STAT2);
sungem_phy_write(phy, MII_BCM5221_SHDOW_AUX_STAT2,
data | MII_BCM5221_SHDOW_AUX_STAT2_APD);
data = sungem_phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
sungem_phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
data & ~MII_BCM5241_SHDOW_AUX_MODE4_STANDBYPWR);
data = sungem_phy_read(phy, MII_BCM5221_TEST);
sungem_phy_write(phy, MII_BCM5221_TEST,
data & ~MII_BCM5221_TEST_ENABLE_SHADOWS);
return 0 ;
}
static int bcm5241_suspend(struct mii_phy* phy)
{
u16 data;
data = sungem_phy_read(phy, MII_BCM5221_TEST);
sungem_phy_write(phy, MII_BCM5221_TEST,
data | MII_BCM5221_TEST_ENABLE_SHADOWS);
data = sungem_phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
sungem_phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
data | MII_BCM5241_SHDOW_AUX_MODE4_STANDBYPWR);
return 0 ;
}
static int bcm5400_init(struct mii_phy* phy)
{
u16 data;
/* Configure for gigabit full duplex */
data = sungem_phy_read(phy, MII_BCM5400_AUXCONTROL);
data |= MII_BCM5400_AUXCONTROL_PWR10BASET;
sungem_phy_write(phy, MII_BCM5400_AUXCONTROL, data);
data = sungem_phy_read(phy, MII_BCM5400_GB_CONTROL);
data |= MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP;
sungem_phy_write(phy, MII_BCM5400_GB_CONTROL, data);
udelay(100 );
/* Reset and configure cascaded 10/100 PHY */
(void )reset_one_mii_phy(phy, 0 x1f);
data = __sungem_phy_read(phy, 0 x1f, MII_BCM5201_MULTIPHY);
data |= MII_BCM5201_MULTIPHY_SERIALMODE;
__sungem_phy_write(phy, 0 x1f, MII_BCM5201_MULTIPHY, data);
data = sungem_phy_read(phy, MII_BCM5400_AUXCONTROL);
data &= ~MII_BCM5400_AUXCONTROL_PWR10BASET;
sungem_phy_write(phy, MII_BCM5400_AUXCONTROL, data);
return 0 ;
}
static int bcm5400_suspend(struct mii_phy* phy)
{
#if 0 /* Commented out in Darwin... someone has those dawn docs ? */
sungem_phy_write(phy, MII_BMCR, BMCR_PDOWN);
#endif
return 0 ;
}
static int bcm5401_init(struct mii_phy* phy)
{
u16 data;
int rev;
rev = sungem_phy_read(phy, MII_PHYSID2) & 0 x000f;
if (rev == 0 || rev == 3 ) {
/* Some revisions of 5401 appear to need this
* initialisation sequence to disable , according
* to OF , " tap power management "
*
* WARNING ! OF and Darwin don ' t agree on the
* register addresses . OF seem to interpret the
* register numbers below as decimal
*
* Note : This should ( and does ) match tg3_init_5401phy_dsp
* in the tg3 . c driver . - DaveM
*/
sungem_phy_write(phy, 0 x18, 0 x0c20);
sungem_phy_write(phy, 0 x17, 0 x0012);
sungem_phy_write(phy, 0 x15, 0 x1804);
sungem_phy_write(phy, 0 x17, 0 x0013);
sungem_phy_write(phy, 0 x15, 0 x1204);
sungem_phy_write(phy, 0 x17, 0 x8006);
sungem_phy_write(phy, 0 x15, 0 x0132);
sungem_phy_write(phy, 0 x17, 0 x8006);
sungem_phy_write(phy, 0 x15, 0 x0232);
sungem_phy_write(phy, 0 x17, 0 x201f);
sungem_phy_write(phy, 0 x15, 0 x0a20);
}
/* Configure for gigabit full duplex */
data = sungem_phy_read(phy, MII_BCM5400_GB_CONTROL);
data |= MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP;
sungem_phy_write(phy, MII_BCM5400_GB_CONTROL, data);
udelay(10 );
/* Reset and configure cascaded 10/100 PHY */
(void )reset_one_mii_phy(phy, 0 x1f);
data = __sungem_phy_read(phy, 0 x1f, MII_BCM5201_MULTIPHY);
data |= MII_BCM5201_MULTIPHY_SERIALMODE;
__sungem_phy_write(phy, 0 x1f, MII_BCM5201_MULTIPHY, data);
return 0 ;
}
static int bcm5401_suspend(struct mii_phy* phy)
{
#if 0 /* Commented out in Darwin... someone has those dawn docs ? */
sungem_phy_write(phy, MII_BMCR, BMCR_PDOWN);
#endif
return 0 ;
}
static int bcm5411_init(struct mii_phy* phy)
{
u16 data;
/* Here's some more Apple black magic to setup
* some voltage stuffs .
*/
sungem_phy_write(phy, 0 x1c, 0 x8c23);
sungem_phy_write(phy, 0 x1c, 0 x8ca3);
sungem_phy_write(phy, 0 x1c, 0 x8c23);
/* Here, Apple seems to want to reset it, do
* it as well
*/
sungem_phy_write(phy, MII_BMCR, BMCR_RESET);
sungem_phy_write(phy, MII_BMCR, 0 x1340);
data = sungem_phy_read(phy, MII_BCM5400_GB_CONTROL);
data |= MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP;
sungem_phy_write(phy, MII_BCM5400_GB_CONTROL, data);
udelay(10 );
/* Reset and configure cascaded 10/100 PHY */
(void )reset_one_mii_phy(phy, 0 x1f);
return 0 ;
}
static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
{
u16 ctl, adv;
phy->autoneg = 1 ;
phy->speed = SPEED_10;
phy->duplex = DUPLEX_HALF;
phy->pause = 0 ;
phy->advertising = advertise;
/* Setup standard advertise */
adv = sungem_phy_read(phy, MII_ADVERTISE);
adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
if (advertise & ADVERTISED_10baseT_Half)
adv |= ADVERTISE_10HALF;
if (advertise & ADVERTISED_10baseT_Full)
adv |= ADVERTISE_10FULL;
if (advertise & ADVERTISED_100baseT_Half)
adv |= ADVERTISE_100HALF;
if (advertise & ADVERTISED_100baseT_Full)
adv |= ADVERTISE_100FULL;
sungem_phy_write(phy, MII_ADVERTISE, adv);
/* Start/Restart aneg */
ctl = sungem_phy_read(phy, MII_BMCR);
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
sungem_phy_write(phy, MII_BMCR, ctl);
return 0 ;
}
static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd)
{
u16 ctl;
phy->autoneg = 0 ;
phy->speed = speed;
phy->duplex = fd;
phy->pause = 0 ;
ctl = sungem_phy_read(phy, MII_BMCR);
ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_ANENABLE);
/* First reset the PHY */
sungem_phy_write(phy, MII_BMCR, ctl | BMCR_RESET);
/* Select speed & duplex */
switch (speed) {
case SPEED_10:
break ;
case SPEED_100:
ctl |= BMCR_SPEED100;
break ;
case SPEED_1000:
default :
return -EINVAL;
}
if (fd == DUPLEX_FULL)
ctl |= BMCR_FULLDPLX;
sungem_phy_write(phy, MII_BMCR, ctl);
return 0 ;
}
static int genmii_poll_link(struct mii_phy *phy)
{
u16 status;
(void )sungem_phy_read(phy, MII_BMSR);
status = sungem_phy_read(phy, MII_BMSR);
if ((status & BMSR_LSTATUS) == 0 )
return 0 ;
if (phy->autoneg && !(status & BMSR_ANEGCOMPLETE))
return 0 ;
return 1 ;
}
static int genmii_read_link(struct mii_phy *phy)
{
u16 lpa;
if (phy->autoneg) {
lpa = sungem_phy_read(phy, MII_LPA);
if (lpa & (LPA_10FULL | LPA_100FULL))
phy->duplex = DUPLEX_FULL;
else
phy->duplex = DUPLEX_HALF;
if (lpa & (LPA_100FULL | LPA_100HALF))
phy->speed = SPEED_100;
else
phy->speed = SPEED_10;
phy->pause = 0 ;
}
/* On non-aneg, we assume what we put in BMCR is the speed,
* though magic - aneg shouldn ' t prevent this case from occurring
*/
return 0 ;
}
static int generic_suspend(struct mii_phy* phy)
{
sungem_phy_write(phy, MII_BMCR, BMCR_PDOWN);
return 0 ;
}
static int bcm5421_init(struct mii_phy* phy)
{
u16 data;
unsigned int id;
id = (sungem_phy_read(phy, MII_PHYSID1) << 16 | sungem_phy_read(phy, MII_PHYSID2));
/* Revision 0 of 5421 needs some fixups */
if (id == 0 x002060e0) {
/* This is borrowed from MacOS
*/
sungem_phy_write(phy, 0 x18, 0 x1007);
data = sungem_phy_read(phy, 0 x18);
sungem_phy_write(phy, 0 x18, data | 0 x0400);
sungem_phy_write(phy, 0 x18, 0 x0007);
data = sungem_phy_read(phy, 0 x18);
sungem_phy_write(phy, 0 x18, data | 0 x0800);
sungem_phy_write(phy, 0 x17, 0 x000a);
data = sungem_phy_read(phy, 0 x15);
sungem_phy_write(phy, 0 x15, data | 0 x0200);
}
/* Pick up some init code from OF for K2 version */
if ((id & 0 xfffffff0) == 0 x002062e0) {
sungem_phy_write(phy, 4 , 0 x01e1);
sungem_phy_write(phy, 9 , 0 x0300);
}
/* Check if we can enable automatic low power */
#ifdef CONFIG_PPC_PMAC
if (phy->platform_data) {
struct device_node *np = of_get_parent(phy->platform_data);
int can_low_power = 1 ;
if (np == NULL || of_get_property(np, "no-autolowpower" , NULL))
can_low_power = 0 ;
of_node_put(np);
if (can_low_power) {
/* Enable automatic low-power */
sungem_phy_write(phy, 0 x1c, 0 x9002);
sungem_phy_write(phy, 0 x1c, 0 xa821);
sungem_phy_write(phy, 0 x1c, 0 x941d);
}
}
#endif /* CONFIG_PPC_PMAC */
return 0 ;
}
static int bcm54xx_setup_aneg(struct mii_phy *phy, u32 advertise)
{
u16 ctl, adv;
phy->autoneg = 1 ;
phy->speed = SPEED_10;
phy->duplex = DUPLEX_HALF;
phy->pause = 0 ;
phy->advertising = advertise;
/* Setup standard advertise */
adv = sungem_phy_read(phy, MII_ADVERTISE);
adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
if (advertise & ADVERTISED_10baseT_Half)
adv |= ADVERTISE_10HALF;
if (advertise & ADVERTISED_10baseT_Full)
adv |= ADVERTISE_10FULL;
if (advertise & ADVERTISED_100baseT_Half)
adv |= ADVERTISE_100HALF;
if (advertise & ADVERTISED_100baseT_Full)
adv |= ADVERTISE_100FULL;
if (advertise & ADVERTISED_Pause)
adv |= ADVERTISE_PAUSE_CAP;
if (advertise & ADVERTISED_Asym_Pause)
adv |= ADVERTISE_PAUSE_ASYM;
sungem_phy_write(phy, MII_ADVERTISE, adv);
/* Setup 1000BT advertise */
adv = sungem_phy_read(phy, MII_1000BASETCONTROL);
adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP|MII_1000BASETCONTROL_HALFDUPLEXCAP);
if (advertise & SUPPORTED_1000baseT_Half)
adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP;
if (advertise & SUPPORTED_1000baseT_Full)
adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP;
sungem_phy_write(phy, MII_1000BASETCONTROL, adv);
/* Start/Restart aneg */
ctl = sungem_phy_read(phy, MII_BMCR);
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
sungem_phy_write(phy, MII_BMCR, ctl);
return 0 ;
}
static int bcm54xx_setup_forced(struct mii_phy *phy, int speed, int fd)
{
u16 ctl;
phy->autoneg = 0 ;
phy->speed = speed;
phy->duplex = fd;
phy->pause = 0 ;
ctl = sungem_phy_read(phy, MII_BMCR);
ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_SPD2|BMCR_ANENABLE);
/* First reset the PHY */
sungem_phy_write(phy, MII_BMCR, ctl | BMCR_RESET);
/* Select speed & duplex */
switch (speed) {
case SPEED_10:
break ;
case SPEED_100:
ctl |= BMCR_SPEED100;
break ;
case SPEED_1000:
ctl |= BMCR_SPD2;
}
if (fd == DUPLEX_FULL)
ctl |= BMCR_FULLDPLX;
// XXX Should we set the sungem to GII now on 1000BT ?
sungem_phy_write(phy, MII_BMCR, ctl);
return 0 ;
}
static int bcm54xx_read_link(struct mii_phy *phy)
{
int link_mode;
u16 val;
if (phy->autoneg) {
val = sungem_phy_read(phy, MII_BCM5400_AUXSTATUS);
link_mode = ((val & MII_BCM5400_AUXSTATUS_LINKMODE_MASK) >>
MII_BCM5400_AUXSTATUS_LINKMODE_SHIFT);
phy->duplex = phy_BCM5400_link_table[link_mode][0 ] ?
DUPLEX_FULL : DUPLEX_HALF;
phy->speed = phy_BCM5400_link_table[link_mode][2 ] ?
SPEED_1000 :
(phy_BCM5400_link_table[link_mode][1 ] ?
SPEED_100 : SPEED_10);
val = sungem_phy_read(phy, MII_LPA);
phy->pause = (phy->duplex == DUPLEX_FULL) &&
((val & LPA_PAUSE) != 0 );
}
/* On non-aneg, we assume what we put in BMCR is the speed,
* though magic - aneg shouldn ' t prevent this case from occurring
*/
return 0 ;
}
static int marvell88e1111_init(struct mii_phy* phy)
{
u16 rev;
/* magic init sequence for rev 0 */
rev = sungem_phy_read(phy, MII_PHYSID2) & 0 x000f;
if (rev == 0 ) {
sungem_phy_write(phy, 0 x1d, 0 x000a);
sungem_phy_write(phy, 0 x1e, 0 x0821);
sungem_phy_write(phy, 0 x1d, 0 x0006);
sungem_phy_write(phy, 0 x1e, 0 x8600);
sungem_phy_write(phy, 0 x1d, 0 x000b);
sungem_phy_write(phy, 0 x1e, 0 x0100);
sungem_phy_write(phy, 0 x1d, 0 x0004);
sungem_phy_write(phy, 0 x1e, 0 x4850);
}
return 0 ;
}
#define BCM5421_MODE_MASK (1 << 5 )
static int bcm5421_poll_link(struct mii_phy* phy)
{
u32 phy_reg;
int mode;
/* find out in what mode we are */
sungem_phy_write(phy, MII_NCONFIG, 0 x1000);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
mode = (phy_reg & BCM5421_MODE_MASK) >> 5 ;
if ( mode == BCM54XX_COPPER)
return genmii_poll_link(phy);
/* try to find out whether we have a link */
sungem_phy_write(phy, MII_NCONFIG, 0 x2000);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
if (phy_reg & 0 x0020)
return 0 ;
else
return 1 ;
}
static int bcm5421_read_link(struct mii_phy* phy)
{
u32 phy_reg;
int mode;
/* find out in what mode we are */
sungem_phy_write(phy, MII_NCONFIG, 0 x1000);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
mode = (phy_reg & BCM5421_MODE_MASK ) >> 5 ;
if ( mode == BCM54XX_COPPER)
return bcm54xx_read_link(phy);
phy->speed = SPEED_1000;
/* find out whether we are running half- or full duplex */
sungem_phy_write(phy, MII_NCONFIG, 0 x2000);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
if ( (phy_reg & 0 x0080) >> 7 )
phy->duplex |= DUPLEX_HALF;
else
phy->duplex |= DUPLEX_FULL;
return 0 ;
}
static int bcm5421_enable_fiber(struct mii_phy* phy, int autoneg)
{
/* enable fiber mode */
sungem_phy_write(phy, MII_NCONFIG, 0 x9020);
/* LEDs active in both modes, autosense prio = fiber */
sungem_phy_write(phy, MII_NCONFIG, 0 x945f);
if (!autoneg) {
/* switch off fibre autoneg */
sungem_phy_write(phy, MII_NCONFIG, 0 xfc01);
sungem_phy_write(phy, 0 x0b, 0 x0004);
}
phy->autoneg = autoneg;
return 0 ;
}
#define BCM5461_FIBER_LINK (1 << 2 )
#define BCM5461_MODE_MASK (3 << 1 )
static int bcm5461_poll_link(struct mii_phy* phy)
{
u32 phy_reg;
int mode;
/* find out in what mode we are */
sungem_phy_write(phy, MII_NCONFIG, 0 x7c00);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
mode = (phy_reg & BCM5461_MODE_MASK ) >> 1 ;
if ( mode == BCM54XX_COPPER)
return genmii_poll_link(phy);
/* find out whether we have a link */
sungem_phy_write(phy, MII_NCONFIG, 0 x7000);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
if (phy_reg & BCM5461_FIBER_LINK)
return 1 ;
else
return 0 ;
}
#define BCM5461_FIBER_DUPLEX (1 << 3 )
static int bcm5461_read_link(struct mii_phy* phy)
{
u32 phy_reg;
int mode;
/* find out in what mode we are */
sungem_phy_write(phy, MII_NCONFIG, 0 x7c00);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
mode = (phy_reg & BCM5461_MODE_MASK ) >> 1 ;
if ( mode == BCM54XX_COPPER) {
return bcm54xx_read_link(phy);
}
phy->speed = SPEED_1000;
/* find out whether we are running half- or full duplex */
sungem_phy_write(phy, MII_NCONFIG, 0 x7000);
phy_reg = sungem_phy_read(phy, MII_NCONFIG);
if (phy_reg & BCM5461_FIBER_DUPLEX)
phy->duplex |= DUPLEX_FULL;
else
phy->duplex |= DUPLEX_HALF;
return 0 ;
}
static int bcm5461_enable_fiber(struct mii_phy* phy, int autoneg)
{
/* select fiber mode, enable 1000 base-X registers */
sungem_phy_write(phy, MII_NCONFIG, 0 xfc0b);
if (autoneg) {
/* enable fiber with no autonegotiation */
sungem_phy_write(phy, MII_ADVERTISE, 0 x01e0);
sungem_phy_write(phy, MII_BMCR, 0 x1140);
} else {
/* enable fiber with autonegotiation */
sungem_phy_write(phy, MII_BMCR, 0 x0140);
}
phy->autoneg = autoneg;
return 0 ;
}
static int marvell_setup_aneg(struct mii_phy *phy, u32 advertise)
{
u16 ctl, adv;
phy->autoneg = 1 ;
phy->speed = SPEED_10;
phy->duplex = DUPLEX_HALF;
phy->pause = 0 ;
phy->advertising = advertise;
/* Setup standard advertise */
adv = sungem_phy_read(phy, MII_ADVERTISE);
adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
if (advertise & ADVERTISED_10baseT_Half)
adv |= ADVERTISE_10HALF;
if (advertise & ADVERTISED_10baseT_Full)
adv |= ADVERTISE_10FULL;
if (advertise & ADVERTISED_100baseT_Half)
adv |= ADVERTISE_100HALF;
if (advertise & ADVERTISED_100baseT_Full)
adv |= ADVERTISE_100FULL;
if (advertise & ADVERTISED_Pause)
adv |= ADVERTISE_PAUSE_CAP;
if (advertise & ADVERTISED_Asym_Pause)
adv |= ADVERTISE_PAUSE_ASYM;
sungem_phy_write(phy, MII_ADVERTISE, adv);
/* Setup 1000BT advertise & enable crossover detect
* XXX How do we advertise 1000 BT ? Darwin source is
* confusing here , they read from specific control and
* write to control . . . Someone has specs for those
* beasts ?
*/
adv = sungem_phy_read(phy, MII_M1011_PHY_SPEC_CONTROL);
adv |= MII_M1011_PHY_SPEC_CONTROL_AUTO_MDIX;
adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP |
MII_1000BASETCONTROL_HALFDUPLEXCAP);
if (advertise & SUPPORTED_1000baseT_Half)
adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP;
if (advertise & SUPPORTED_1000baseT_Full)
adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP;
sungem_phy_write(phy, MII_1000BASETCONTROL, adv);
/* Start/Restart aneg */
ctl = sungem_phy_read(phy, MII_BMCR);
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
sungem_phy_write(phy, MII_BMCR, ctl);
return 0 ;
}
static int marvell_setup_forced(struct mii_phy *phy, int speed, int fd)
{
u16 ctl, ctl2;
phy->autoneg = 0 ;
phy->speed = speed;
phy->duplex = fd;
phy->pause = 0 ;
ctl = sungem_phy_read(phy, MII_BMCR);
ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_SPD2|BMCR_ANENABLE);
ctl |= BMCR_RESET;
/* Select speed & duplex */
switch (speed) {
case SPEED_10:
break ;
case SPEED_100:
ctl |= BMCR_SPEED100;
break ;
/* I'm not sure about the one below, again, Darwin source is
* quite confusing and I lack chip specs
*/
case SPEED_1000:
ctl |= BMCR_SPD2;
}
if (fd == DUPLEX_FULL)
ctl |= BMCR_FULLDPLX;
/* Disable crossover. Again, the way Apple does it is strange,
* though I don ' t assume they are wrong ; )
*/
ctl2 = sungem_phy_read(phy, MII_M1011_PHY_SPEC_CONTROL);
ctl2 &= ~(MII_M1011_PHY_SPEC_CONTROL_MANUAL_MDIX |
MII_M1011_PHY_SPEC_CONTROL_AUTO_MDIX |
MII_1000BASETCONTROL_FULLDUPLEXCAP |
MII_1000BASETCONTROL_HALFDUPLEXCAP);
if (speed == SPEED_1000)
ctl2 |= (fd == DUPLEX_FULL) ?
MII_1000BASETCONTROL_FULLDUPLEXCAP :
MII_1000BASETCONTROL_HALFDUPLEXCAP;
sungem_phy_write(phy, MII_1000BASETCONTROL, ctl2);
// XXX Should we set the sungem to GII now on 1000BT ?
sungem_phy_write(phy, MII_BMCR, ctl);
return 0 ;
}
static int marvell_read_link(struct mii_phy *phy)
{
u16 status, pmask;
if (phy->autoneg) {
status = sungem_phy_read(phy, MII_M1011_PHY_SPEC_STATUS);
if ((status & MII_M1011_PHY_SPEC_STATUS_RESOLVED) == 0 )
return -EAGAIN;
if (status & MII_M1011_PHY_SPEC_STATUS_1000)
phy->speed = SPEED_1000;
else if (status & MII_M1011_PHY_SPEC_STATUS_100)
phy->speed = SPEED_100;
else
phy->speed = SPEED_10;
if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX)
phy->duplex = DUPLEX_FULL;
else
phy->duplex = DUPLEX_HALF;
pmask = MII_M1011_PHY_SPEC_STATUS_TX_PAUSE |
MII_M1011_PHY_SPEC_STATUS_RX_PAUSE;
phy->pause = (status & pmask) == pmask;
}
/* On non-aneg, we assume what we put in BMCR is the speed,
* though magic - aneg shouldn ' t prevent this case from occurring
*/
return 0 ;
}
#define MII_BASIC_FEATURES \
(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII | \
SUPPORTED_Pause)
/* On gigabit capable PHYs, we advertise Pause support but not asym pause
* support for now as I ' m not sure it ' s supported and Darwin doesn ' t do
* it neither . - - BenH .
*/
#define MII_GBIT_FEATURES \
(MII_BASIC_FEATURES | \
SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full)
/* Broadcom BCM 5201 */
static const struct mii_phy_ops bcm5201_phy_ops = {
.init = bcm5201_init,
.suspend = bcm5201_suspend,
.setup_aneg = genmii_setup_aneg,
.setup_forced = genmii_setup_forced,
.poll_link = genmii_poll_link,
.read_link = genmii_read_link,
};
static const struct mii_phy_def bcm5201_phy_def = {
.phy_id = 0 x00406210,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5201" ,
.features = MII_BASIC_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5201_phy_ops
};
/* Broadcom BCM 5221 */
static const struct mii_phy_ops bcm5221_phy_ops = {
.suspend = bcm5221_suspend,
.init = bcm5221_init,
.setup_aneg = genmii_setup_aneg,
.setup_forced = genmii_setup_forced,
.poll_link = genmii_poll_link,
.read_link = genmii_read_link,
};
static const struct mii_phy_def bcm5221_phy_def = {
.phy_id = 0 x004061e0,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5221" ,
.features = MII_BASIC_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5221_phy_ops
};
/* Broadcom BCM 5241 */
static const struct mii_phy_ops bcm5241_phy_ops = {
.suspend = bcm5241_suspend,
.init = bcm5241_init,
.setup_aneg = genmii_setup_aneg,
.setup_forced = genmii_setup_forced,
.poll_link = genmii_poll_link,
.read_link = genmii_read_link,
};
static const struct mii_phy_def bcm5241_phy_def = {
.phy_id = 0 x0143bc30,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5241" ,
.features = MII_BASIC_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5241_phy_ops
};
/* Broadcom BCM 5400 */
static const struct mii_phy_ops bcm5400_phy_ops = {
.init = bcm5400_init,
.suspend = bcm5400_suspend,
.setup_aneg = bcm54xx_setup_aneg,
.setup_forced = bcm54xx_setup_forced,
.poll_link = genmii_poll_link,
.read_link = bcm54xx_read_link,
};
static const struct mii_phy_def bcm5400_phy_def = {
.phy_id = 0 x00206040,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5400" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5400_phy_ops
};
/* Broadcom BCM 5401 */
static const struct mii_phy_ops bcm5401_phy_ops = {
.init = bcm5401_init,
.suspend = bcm5401_suspend,
.setup_aneg = bcm54xx_setup_aneg,
.setup_forced = bcm54xx_setup_forced,
.poll_link = genmii_poll_link,
.read_link = bcm54xx_read_link,
};
static const struct mii_phy_def bcm5401_phy_def = {
.phy_id = 0 x00206050,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5401" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5401_phy_ops
};
/* Broadcom BCM 5411 */
static const struct mii_phy_ops bcm5411_phy_ops = {
.init = bcm5411_init,
.suspend = generic_suspend,
.setup_aneg = bcm54xx_setup_aneg,
.setup_forced = bcm54xx_setup_forced,
.poll_link = genmii_poll_link,
.read_link = bcm54xx_read_link,
};
static const struct mii_phy_def bcm5411_phy_def = {
.phy_id = 0 x00206070,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5411" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5411_phy_ops
};
/* Broadcom BCM 5421 */
static const struct mii_phy_ops bcm5421_phy_ops = {
.init = bcm5421_init,
.suspend = generic_suspend,
.setup_aneg = bcm54xx_setup_aneg,
.setup_forced = bcm54xx_setup_forced,
.poll_link = bcm5421_poll_link,
.read_link = bcm5421_read_link,
.enable_fiber = bcm5421_enable_fiber,
};
static const struct mii_phy_def bcm5421_phy_def = {
.phy_id = 0 x002060e0,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5421" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5421_phy_ops
};
/* Broadcom BCM 5421 built-in K2 */
static const struct mii_phy_ops bcm5421k2_phy_ops = {
.init = bcm5421_init,
.suspend = generic_suspend,
.setup_aneg = bcm54xx_setup_aneg,
.setup_forced = bcm54xx_setup_forced,
.poll_link = genmii_poll_link,
.read_link = bcm54xx_read_link,
};
static const struct mii_phy_def bcm5421k2_phy_def = {
.phy_id = 0 x002062e0,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5421-K2" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5421k2_phy_ops
};
static const struct mii_phy_ops bcm5461_phy_ops = {
.init = bcm5421_init,
.suspend = generic_suspend,
.setup_aneg = bcm54xx_setup_aneg,
.setup_forced = bcm54xx_setup_forced,
.poll_link = bcm5461_poll_link,
.read_link = bcm5461_read_link,
.enable_fiber = bcm5461_enable_fiber,
};
static const struct mii_phy_def bcm5461_phy_def = {
.phy_id = 0 x002060c0,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5461" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5461_phy_ops
};
/* Broadcom BCM 5462 built-in Vesta */
static const struct mii_phy_ops bcm5462V_phy_ops = {
.init = bcm5421_init,
.suspend = generic_suspend,
.setup_aneg = bcm54xx_setup_aneg,
.setup_forced = bcm54xx_setup_forced,
.poll_link = genmii_poll_link,
.read_link = bcm54xx_read_link,
};
static const struct mii_phy_def bcm5462V_phy_def = {
.phy_id = 0 x002060d0,
.phy_id_mask = 0 xfffffff0,
.name = "BCM5462-Vesta" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &bcm5462V_phy_ops
};
/* Marvell 88E1101 amd 88E1111 */
static const struct mii_phy_ops marvell88e1101_phy_ops = {
.suspend = generic_suspend,
.setup_aneg = marvell_setup_aneg,
.setup_forced = marvell_setup_forced,
.poll_link = genmii_poll_link,
.read_link = marvell_read_link
};
static const struct mii_phy_ops marvell88e1111_phy_ops = {
.init = marvell88e1111_init,
.suspend = generic_suspend,
.setup_aneg = marvell_setup_aneg,
.setup_forced = marvell_setup_forced,
.poll_link = genmii_poll_link,
.read_link = marvell_read_link
};
/* two revs in darwin for the 88e1101 ... I could use a datasheet
* to get the proper names . . .
*/
static const struct mii_phy_def marvell88e1101v1_phy_def = {
.phy_id = 0 x01410c20,
.phy_id_mask = 0 xfffffff0,
.name = "Marvell 88E1101v1" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &marvell88e1101_phy_ops
};
static const struct mii_phy_def marvell88e1101v2_phy_def = {
.phy_id = 0 x01410c60,
.phy_id_mask = 0 xfffffff0,
.name = "Marvell 88E1101v2" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &marvell88e1101_phy_ops
};
static const struct mii_phy_def marvell88e1111_phy_def = {
.phy_id = 0 x01410cc0,
.phy_id_mask = 0 xfffffff0,
.name = "Marvell 88E1111" ,
.features = MII_GBIT_FEATURES,
.magic_aneg = 1 ,
.ops = &marvell88e1111_phy_ops
};
/* Generic implementation for most 10/100 PHYs */
static const struct mii_phy_ops generic_phy_ops = {
.setup_aneg = genmii_setup_aneg,
.setup_forced = genmii_setup_forced,
.poll_link = genmii_poll_link,
.read_link = genmii_read_link
};
static const struct mii_phy_def genmii_phy_def = {
.phy_id = 0 x00000000,
.phy_id_mask = 0 x00000000,
.name = "Generic MII" ,
.features = MII_BASIC_FEATURES,
.magic_aneg = 0 ,
.ops = &generic_phy_ops
};
static const struct mii_phy_def *mii_phy_table[] = {
&bcm5201_phy_def,
&bcm5221_phy_def,
&bcm5241_phy_def,
&bcm5400_phy_def,
&bcm5401_phy_def,
&bcm5411_phy_def,
&bcm5421_phy_def,
&bcm5421k2_phy_def,
&bcm5461_phy_def,
&bcm5462V_phy_def,
&marvell88e1101v1_phy_def,
&marvell88e1101v2_phy_def,
&marvell88e1111_phy_def,
&genmii_phy_def,
NULL
};
int sungem_phy_probe(struct mii_phy *phy, int mii_id)
{
const struct mii_phy_def *def;
int rc;
u32 id;
int i;
/* We do not reset the mii_phy structure as the driver
* may re - probe the PHY regulary
*/
phy->mii_id = mii_id;
/* Take PHY out of isloate mode and reset it. */
rc = reset_one_mii_phy(phy, mii_id);
if (rc)
goto fail;
/* Read ID and find matching entry */
id = (sungem_phy_read(phy, MII_PHYSID1) << 16 | sungem_phy_read(phy, MII_PHYSID2));
printk(KERN_DEBUG KBUILD_MODNAME ": " "PHY ID: %x, addr: %x\n" ,
id, mii_id);
for (i=0 ; (def = mii_phy_table[i]) != NULL; i++)
if ((id & def->phy_id_mask) == def->phy_id)
break ;
/* Should never be NULL (we have a generic entry), but... */
if (def == NULL)
goto fail;
phy->def = def;
return 0 ;
fail:
phy->speed = 0 ;
phy->duplex = 0 ;
phy->pause = 0 ;
phy->advertising = 0 ;
return -ENODEV;
}
EXPORT_SYMBOL(sungem_phy_probe);
MODULE_DESCRIPTION("PHY drivers for the sungem Ethernet MAC driver" );
MODULE_LICENSE("GPL" );
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(vorverarbeitet am 2026-09-29)
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