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/*
* Marvell 88E6xxx VLAN [Spanning Tree] Translation Unit (VTU [STU]) support
*
* Copyright (c) 2008 Marvell Semiconductor
* Copyright (c) 2015 CMC Electronics, Inc.
* Copyright (c) 2017 Savoir-faire Linux, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include "mv88e6xxx.h"
#include "global1.h"
/* Offset 0x02: VTU FID Register */
int mv88e6xxx_g1_vtu_fid_read(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{
u16 val;
int err;
err = mv88e6xxx_g1_read(chip, GLOBAL_VTU_FID, &val);
if (err)
return err;
entry->fid = val & GLOBAL_VTU_FID_MASK;
return 0;
}
int mv88e6xxx_g1_vtu_fid_write(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{
u16 val = entry->fid & GLOBAL_VTU_FID_MASK;
return mv88e6xxx_g1_write(chip, GLOBAL_VTU_FID, val);
}
/* Offset 0x03: VTU SID Register */
int mv88e6xxx_g1_vtu_sid_read(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{
u16 val;
int err;
err = mv88e6xxx_g1_read(chip, GLOBAL_VTU_SID, &val);
if (err)
return err;
entry->sid = val & GLOBAL_VTU_SID_MASK;
return 0;
}
int mv88e6xxx_g1_vtu_sid_write(struct mv88e6xxx_chip *chip,
struct mv88e6xxx_vtu_entry *entry)
{
u16 val = entry->sid & GLOBAL_VTU_SID_MASK;
return mv88e6xxx_g1_write(chip, GLOBAL_VTU_SID, val);
}
/* Offset 0x05: VTU Operation Register */
int mv88e6xxx_g1_vtu_op_wait(struct mv88e6xxx_chip *chip)
{
return mv88e6xxx_g1_wait(chip, GLOBAL_VTU_OP, GLOBAL_VTU_OP_BUSY);
}
int mv88e6xxx_g1_vtu_op(struct mv88e6xxx_chip *chip, u16 op)
{
int err;
err = mv88e6xxx_g1_write(chip, GLOBAL_VTU_OP, op);
if (err)
return err;
return mv88e6xxx_g1_vtu_op_wait(chip);
}
/* VLAN Translation Unit Operations */
int mv88e6xxx_g1_vtu_flush(struct mv88e6xxx_chip *chip)
{
int err;
err = mv88e6xxx_g1_vtu_op_wait(chip);
if (err)
return err;
return mv88e6xxx_g1_vtu_op(chip, GLOBAL_VTU_OP_FLUSH_ALL);
}
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