ca070c1097
Since not every chip has a Global2 set of registers, make its support optional, in which case the related functions will return -EOPNOTSUPP. This also allows to reduce the size of the mv88e6xxx driver for devices such as home routers embedding Ethernet chips without Global2 support. It is present on most recent chips, thus enable its support by default. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
89 lines
2.3 KiB
C
89 lines
2.3 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, int addr, int reg,
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u16 *val);
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int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip, int addr, int reg,
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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_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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#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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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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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_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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#endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
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#endif /* _MV88E6XXX_GLOBAL2_H */
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