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net: dsa: mv88e6xxx: remove EEE support
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The PHY's EEE settings are already accessed by the DSA layer through the
Marvell PHY driver and there is nothing to be done for switch's MACs.

Remove all EEE support from the mv88e6xxx driver and simply return 0
from the EEE ops.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Vivien Didelot authored and David S. Miller committed Aug 2, 2017
1 parent 46587e4 commit 5480db6
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Showing 6 changed files with 4 additions and 214 deletions.
74 changes: 4 additions & 70 deletions drivers/net/dsa/mv88e6xxx/chip.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -810,56 +810,18 @@ static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
mutex_unlock(&chip->reg_lock);
}

static int mv88e6xxx_energy_detect_read(struct mv88e6xxx_chip *chip, int port,
struct ethtool_eee *eee)
{
int err;

if (!chip->info->ops->phy_energy_detect_read)
return -EOPNOTSUPP;

/* assign eee->eee_enabled and eee->tx_lpi_enabled */
err = chip->info->ops->phy_energy_detect_read(chip, port, eee);
if (err)
return err;

/* assign eee->eee_active */
return mv88e6xxx_port_status_eee(chip, port, eee);
}

static int mv88e6xxx_energy_detect_write(struct mv88e6xxx_chip *chip, int port,
struct ethtool_eee *eee)
{
if (!chip->info->ops->phy_energy_detect_write)
return -EOPNOTSUPP;

return chip->info->ops->phy_energy_detect_write(chip, port, eee);
}

static int mv88e6xxx_get_eee(struct dsa_switch *ds, int port,
struct ethtool_eee *e)
{
struct mv88e6xxx_chip *chip = ds->priv;
int err;

mutex_lock(&chip->reg_lock);
err = mv88e6xxx_energy_detect_read(chip, port, e);
mutex_unlock(&chip->reg_lock);

return err;
/* Nothing to do on the port's MAC */
return 0;
}

static int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
struct ethtool_eee *e)
{
struct mv88e6xxx_chip *chip = ds->priv;
int err;

mutex_lock(&chip->reg_lock);
err = mv88e6xxx_energy_detect_write(chip, port, e);
mutex_unlock(&chip->reg_lock);

return err;
/* Nothing to do on the port's MAC */
return 0;
}

static u16 mv88e6xxx_port_vlan(struct mv88e6xxx_chip *chip, int dev, int port)
Expand Down Expand Up @@ -2521,8 +2483,6 @@ static const struct mv88e6xxx_ops mv88e6141_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down Expand Up @@ -2648,8 +2608,6 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
Expand Down Expand Up @@ -2719,8 +2677,6 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
Expand Down Expand Up @@ -2784,8 +2740,6 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down Expand Up @@ -2821,8 +2775,6 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down Expand Up @@ -2858,8 +2810,6 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down Expand Up @@ -2895,8 +2845,6 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
Expand Down Expand Up @@ -2933,8 +2881,6 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down Expand Up @@ -2971,8 +2917,6 @@ static const struct mv88e6xxx_ops mv88e6320_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
Expand Down Expand Up @@ -3006,8 +2950,6 @@ static const struct mv88e6xxx_ops mv88e6321_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_speed = mv88e6185_port_set_speed,
Expand Down Expand Up @@ -3039,8 +2981,6 @@ static const struct mv88e6xxx_ops mv88e6341_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down Expand Up @@ -3142,8 +3082,6 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6352_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6352_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
Expand Down Expand Up @@ -3180,8 +3118,6 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down Expand Up @@ -3220,8 +3156,6 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
.phy_read = mv88e6xxx_g2_smi_phy_read,
.phy_write = mv88e6xxx_g2_smi_phy_write,
.phy_energy_detect_read = mv88e6390_phy_energy_detect_read,
.phy_energy_detect_write = mv88e6390_phy_energy_detect_write,
.port_set_link = mv88e6xxx_port_set_link,
.port_set_duplex = mv88e6xxx_port_set_duplex,
.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
Expand Down
6 changes: 0 additions & 6 deletions drivers/net/dsa/mv88e6xxx/chip.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -239,12 +239,6 @@ struct mv88e6xxx_ops {
struct mii_bus *bus,
int addr, int reg, u16 val);

/* Copper Energy Detect operations */
int (*phy_energy_detect_read)(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee);
int (*phy_energy_detect_write)(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee);

/* Priority Override Table operations */
int (*pot_clear)(struct mv88e6xxx_chip *chip);

Expand Down
96 changes: 0 additions & 96 deletions drivers/net/dsa/mv88e6xxx/phy.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -246,99 +246,3 @@ int mv88e6xxx_phy_setup(struct mv88e6xxx_chip *chip)
{
return mv88e6xxx_phy_ppu_enable(chip);
}

/* Page 0, Register 16: Copper Specific Control Register 1 */

int mv88e6352_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee)
{
u16 val;
int err;

err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
if (err)
return err;

val &= MV88E6352_PHY_CSCTL1_ENERGY_DETECT_MASK;

eee->eee_enabled = false;
eee->tx_lpi_enabled = false;

switch (val) {
case MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP:
eee->tx_lpi_enabled = true;
/* fall through... */
case MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV:
eee->eee_enabled = true;
}

return 0;
}

int mv88e6352_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee)
{
u16 val;
int err;

err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
if (err)
return err;

val &= ~MV88E6352_PHY_CSCTL1_ENERGY_DETECT_MASK;

if (eee->eee_enabled)
val |= MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV;
if (eee->tx_lpi_enabled)
val |= MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP;

return mv88e6xxx_phy_write(chip, phy, MV88E6XXX_PHY_CSCTL1, val);
}

int mv88e6390_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee)
{
u16 val;
int err;

err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
if (err)
return err;

val &= MV88E6390_PHY_CSCTL1_ENERGY_DETECT_MASK;

eee->eee_enabled = false;
eee->tx_lpi_enabled = false;

switch (val) {
case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_AUTO:
case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_SW:
eee->tx_lpi_enabled = true;
/* fall through... */
case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_AUTO:
case MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_SW:
eee->eee_enabled = true;
}

return 0;
}

int mv88e6390_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee)
{
u16 val;
int err;

err = mv88e6xxx_phy_read(chip, phy, MV88E6XXX_PHY_CSCTL1, &val);
if (err)
return err;

val &= ~MV88E6390_PHY_CSCTL1_ENERGY_DETECT_MASK;

if (eee->eee_enabled)
val |= MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_AUTO;
if (eee->tx_lpi_enabled)
val |= MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_AUTO;

return mv88e6xxx_phy_write(chip, phy, MV88E6XXX_PHY_CSCTL1, val);
}
22 changes: 0 additions & 22 deletions drivers/net/dsa/mv88e6xxx/phy.h
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Original file line number Diff line number Diff line change
Expand Up @@ -17,19 +17,6 @@
#define MV88E6XXX_PHY_PAGE 0x16
#define MV88E6XXX_PHY_PAGE_COPPER 0x00

/* Page 0, Register 16: Copper Specific Control Register 1 */
#define MV88E6XXX_PHY_CSCTL1 16
#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_MASK 0x0300
#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_OFF_MASK 0x0100 /* 0x */
#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV 0x0200
#define MV88E6352_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP 0x0300
#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_MASK 0x0380
#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_OFF_MASK 0x0180 /* 0xx */
#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_AUTO 0x0200
#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_RCV_SW 0x0280
#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_AUTO 0x0300
#define MV88E6390_PHY_CSCTL1_ENERGY_DETECT_SENSE_NLP_SW 0x0380

/* PHY Registers accesses implementations */
int mv88e6165_phy_read(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
int addr, int reg, u16 *val);
Expand All @@ -53,13 +40,4 @@ void mv88e6xxx_phy_init(struct mv88e6xxx_chip *chip);
void mv88e6xxx_phy_destroy(struct mv88e6xxx_chip *chip);
int mv88e6xxx_phy_setup(struct mv88e6xxx_chip *chip);

int mv88e6352_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee);
int mv88e6352_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee);
int mv88e6390_phy_energy_detect_read(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee);
int mv88e6390_phy_energy_detect_write(struct mv88e6xxx_chip *chip, int phy,
struct ethtool_eee *eee);

#endif /*_MV88E6XXX_PHY_H */
17 changes: 0 additions & 17 deletions drivers/net/dsa/mv88e6xxx/port.c
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Original file line number Diff line number Diff line change
Expand Up @@ -35,23 +35,6 @@ int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
return mv88e6xxx_write(chip, addr, reg, val);
}

/* Offset 0x00: Port Status Register */

int mv88e6xxx_port_status_eee(struct mv88e6xxx_chip *chip, int port,
struct ethtool_eee *eee)
{
u16 val;
int err;

err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, &val);
if (err)
return err;

eee->eee_active = !!(val & MV88E6352_PORT_STS_EEE);

return 0;
}

/* Offset 0x01: MAC (or PCS or Physical) Control Register
*
* Link, Duplex and Flow Control have one force bit, one value bit.
Expand Down
3 changes: 0 additions & 3 deletions drivers/net/dsa/mv88e6xxx/port.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -241,9 +241,6 @@ int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
u16 val);

int mv88e6xxx_port_status_eee(struct mv88e6xxx_chip *chip, int port,
struct ethtool_eee *eee);

int mv88e6352_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
phy_interface_t mode);
int mv88e6390_port_set_rgmii_delay(struct mv88e6xxx_chip *chip, int port,
Expand Down

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