56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Marvell 88E6xxx System Management Interface (SMI) support
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*
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* Copyright (c) 2008 Marvell Semiconductor
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*
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* Copyright (c) 2019 Vivien Didelot <vivien.didelot@gmail.com>
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*/
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#ifndef _MV88E6XXX_SMI_H
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#define _MV88E6XXX_SMI_H
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#include "chip.h"
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/* Offset 0x00: SMI Command Register */
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#define MV88E6XXX_SMI_CMD 0x00
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#define MV88E6XXX_SMI_CMD_BUSY 0x8000
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#define MV88E6XXX_SMI_CMD_MODE_MASK 0x1000
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#define MV88E6XXX_SMI_CMD_MODE_45 0x0000
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#define MV88E6XXX_SMI_CMD_MODE_22 0x1000
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#define MV88E6XXX_SMI_CMD_OP_MASK 0x0c00
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#define MV88E6XXX_SMI_CMD_OP_22_WRITE 0x0400
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#define MV88E6XXX_SMI_CMD_OP_22_READ 0x0800
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#define MV88E6XXX_SMI_CMD_OP_45_WRITE_ADDR 0x0000
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#define MV88E6XXX_SMI_CMD_OP_45_WRITE_DATA 0x0400
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#define MV88E6XXX_SMI_CMD_OP_45_READ_DATA 0x0800
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#define MV88E6XXX_SMI_CMD_OP_45_READ_DATA_INC 0x0c00
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#define MV88E6XXX_SMI_CMD_DEV_ADDR_MASK 0x003e
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#define MV88E6XXX_SMI_CMD_REG_ADDR_MASK 0x001f
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/* Offset 0x01: SMI Data Register */
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#define MV88E6XXX_SMI_DATA 0x01
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int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
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struct mii_bus *bus, int sw_addr);
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static inline int mv88e6xxx_smi_read(struct mv88e6xxx_chip *chip,
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int dev, int reg, u16 *data)
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{
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if (chip->smi_ops && chip->smi_ops->read)
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return chip->smi_ops->read(chip, dev, reg, data);
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_smi_write(struct mv88e6xxx_chip *chip,
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int dev, int reg, u16 data)
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{
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if (chip->smi_ops && chip->smi_ops->write)
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return chip->smi_ops->write(chip, dev, reg, data);
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return -EOPNOTSUPP;
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}
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#endif /* _MV88E6XXX_SMI_H */
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