fcd25166d9
The switch contains a watchdog looking for issues with the internal gubbins of the switch. Hook the interrupt the watchdog triggers and log the value of the control register indicating why the watchdog fired. The watchdog can only be cleared with a switch reset, which will destroy the current configuration. Rather than doing this, just disable the interrupt. The mv88e6390 family has different watchdog registers. So use an ops structure, so support for the mv88e6390 family can be added later. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
/*
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* Marvell 88E6xxx Switch Global 2 Registers support (device address 0x1C)
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*
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* Copyright (c) 2008 Marvell Semiconductor
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*
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* Copyright (c) 2016 Vivien Didelot <vivien.didelot@savoirfairelinux.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _MV88E6XXX_GLOBAL2_H
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#define _MV88E6XXX_GLOBAL2_H
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#include "mv88e6xxx.h"
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#ifdef CONFIG_NET_DSA_MV88E6XXX_GLOBAL2
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static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip)
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{
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return 0;
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}
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int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip,
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struct mii_bus *bus,
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int addr, int reg, u16 *val);
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int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip,
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struct mii_bus *bus,
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int addr, int reg, u16 val);
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int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip, u8 *addr);
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int mv88e6xxx_g2_get_eeprom8(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom, u8 *data);
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int mv88e6xxx_g2_set_eeprom8(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom, u8 *data);
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int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom, u8 *data);
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int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom, u8 *data);
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int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip);
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int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip);
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void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip);
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int mv88e6095_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
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extern const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops;
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#else /* !CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
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static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip)
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{
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if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_GLOBAL2)) {
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dev_err(chip->dev, "this chip requires CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 enabled\n");
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return -EOPNOTSUPP;
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}
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return 0;
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}
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static inline int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip,
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struct mii_bus *bus,
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int addr, int reg, u16 *val)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip,
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struct mii_bus *bus,
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int addr, int reg, u16 val)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip,
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u8 *addr)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_get_eeprom8(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom,
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u8 *data)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_set_eeprom8(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom,
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u8 *data)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom,
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u8 *data)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip,
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struct ethtool_eeprom *eeprom,
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u8 *data)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip)
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{
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return -EOPNOTSUPP;
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}
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static inline void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip)
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{
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}
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static inline int mv88e6095_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
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{
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return -EOPNOTSUPP;
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}
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static const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops = {};
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#endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
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#endif /* _MV88E6XXX_GLOBAL2_H */
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