chip.c

/*
 * Marvell 88e6xxx Ethernet switch single-chip support
 *
 * Copyright (c) 2008 Marvell Semiconductor
 *
 * Copyright (c) 2016 Andrew Lunn <andrew@lunn.ch>
 *
 * Copyright (c) 2016-2017 Savoir-faire Linux Inc.
 *	Vivien Didelot <vivien.didelot@savoirfairelinux.com>
 *
 * 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 <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/if_bridge.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/jiffies.h>
#include <linux/list.h>
#include <linux/mdio.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of_mdio.h>
#include <linux/netdevice.h>
#include <linux/gpio/consumer.h>
#include <linux/phy.h>
#include <net/dsa.h>

#include "mv88e6xxx.h"
#include "global1.h"
#include "global2.h"
#include "phy.h"
#include "port.h"

static void assert_reg_lock(struct mv88e6xxx_chip *chip)
{
	if (unlikely(!mutex_is_locked(&chip->reg_lock))) {
		dev_err(chip->dev, "Switch registers lock not held!\n");
		dump_stack();
	}
}

/* The switch ADDR[4:1] configuration pins define the chip SMI device address
 * (ADDR[0] is always zero, thus only even SMI addresses can be strapped).
 *
 * When ADDR is all zero, the chip uses Single-chip Addressing Mode, assuming it
 * is the only device connected to the SMI master. In this mode it responds to
 * all 32 possible SMI addresses, and thus maps directly the internal devices.
 *
 * When ADDR is non-zero, the chip uses Multi-chip Addressing Mode, allowing
 * multiple devices to share the SMI interface. In this mode it responds to only
 * 2 registers, used to indirectly access the internal SMI devices.
 */

static int mv88e6xxx_smi_read(struct mv88e6xxx_chip *chip,
			      int addr, int reg, u16 *val)
{
	if (!chip->smi_ops)
		return -EOPNOTSUPP;

	return chip->smi_ops->read(chip, addr, reg, val);
}

static int mv88e6xxx_smi_write(struct mv88e6xxx_chip *chip,
			       int addr, int reg, u16 val)
{
	if (!chip->smi_ops)
		return -EOPNOTSUPP;

	return chip->smi_ops->write(chip, addr, reg, val);
}

static int mv88e6xxx_smi_single_chip_read(struct mv88e6xxx_chip *chip,
					  int addr, int reg, u16 *val)
{
	int ret;

	ret = mdiobus_read_nested(chip->bus, addr, reg);
	if (ret < 0)
		return ret;

	*val = ret & 0xffff;

	return 0;
}

static int mv88e6xxx_smi_single_chip_write(struct mv88e6xxx_chip *chip,
					   int addr, int reg, u16 val)
{
	int ret;

	ret = mdiobus_write_nested(chip->bus, addr, reg, val);
	if (ret < 0)
		return ret;

	return 0;
}

static const struct mv88e6xxx_bus_ops mv88e6xxx_smi_single_chip_ops = {
	.read = mv88e6xxx_smi_single_chip_read,
	.write = mv88e6xxx_smi_single_chip_write,
};

static int mv88e6xxx_smi_multi_chip_wait(struct mv88e6xxx_chip *chip)
{
	int ret;
	int i;

	for (i = 0; i < 16; i++) {
		ret = mdiobus_read_nested(chip->bus, chip->sw_addr, SMI_CMD);
		if (ret < 0)
			return ret;

		if ((ret & SMI_CMD_BUSY) == 0)
			return 0;
	}

	return -ETIMEDOUT;
}

static int mv88e6xxx_smi_multi_chip_read(struct mv88e6xxx_chip *chip,
					 int addr, int reg, u16 *val)
{
	int ret;

	/* Wait for the bus to become free. */
	ret = mv88e6xxx_smi_multi_chip_wait(chip);
	if (ret < 0)
		return ret;

	/* Transmit the read command. */
	ret = mdiobus_write_nested(chip->bus, chip->sw_addr, SMI_CMD,
				   SMI_CMD_OP_22_READ | (addr << 5) | reg);
	if (ret < 0)
		return ret;

	/* Wait for the read command to complete. */
	ret = mv88e6xxx_smi_multi_chip_wait(chip);
	if (ret < 0)
		return ret;

	/* Read the data. */
	ret = mdiobus_read_nested(chip->bus, chip->sw_addr, SMI_DATA);
	if (ret < 0)
		return ret;

	*val = ret & 0xffff;

	return 0;
}

static int mv88e6xxx_smi_multi_chip_write(struct mv88e6xxx_chip *chip,
					  int addr, int reg, u16 val)
{
	int ret;

	/* Wait for the bus to become free. */
	ret = mv88e6xxx_smi_multi_chip_wait(chip);
	if (ret < 0)
		return ret;

	/* Transmit the data to write. */
	ret = mdiobus_write_nested(chip->bus, chip->sw_addr, SMI_DATA, val);
	if (ret < 0)
		return ret;

	/* Transmit the write command. */
	ret = mdiobus_write_nested(chip->bus, chip->sw_addr, SMI_CMD,
				   SMI_CMD_OP_22_WRITE | (addr << 5) | reg);
	if (ret < 0)
		return ret;

	/* Wait for the write command to complete. */
	ret = mv88e6xxx_smi_multi_chip_wait(chip);
	if (ret < 0)
		return ret;

	return 0;
}

static const struct mv88e6xxx_bus_ops mv88e6xxx_smi_multi_chip_ops = {
	.read = mv88e6xxx_smi_multi_chip_read,
	.write = mv88e6xxx_smi_multi_chip_write,
};

int mv88e6xxx_read(struct mv88e6xxx_chip *chip, int addr, int reg, u16 *val)
{
	int err;

	assert_reg_lock(chip);

	err = mv88e6xxx_smi_read(chip, addr, reg, val);
	if (err)
		return err;

	dev_dbg(chip->dev, "<- addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n",
		addr, reg, *val);

	return 0;
}

int mv88e6xxx_write(struct mv88e6xxx_chip *chip, int addr, int reg, u16 val)
{
	int err;

	assert_reg_lock(chip);

	err = mv88e6xxx_smi_write(chip, addr, reg, val);
	if (err)
		return err;

	dev_dbg(chip->dev, "-> addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n",
		addr, reg, val);

	return 0;
}

struct mii_bus *mv88e6xxx_default_mdio_bus(struct mv88e6xxx_chip *chip)
{
	struct mv88e6xxx_mdio_bus *mdio_bus;

	mdio_bus = list_first_entry(&chip->mdios, struct mv88e6xxx_mdio_bus,
				    list);
	if (!mdio_bus)
		return NULL;

	return mdio_bus->bus;
}

static int mv88e6xxx_serdes_read(struct mv88e6xxx_chip *chip, int reg, u16 *val)
{
	return mv88e6xxx_phy_page_read(chip, ADDR_SERDES, SERDES_PAGE_FIBER,
				       reg, val);
}

static int mv88e6xxx_serdes_write(struct mv88e6xxx_chip *chip, int reg, u16 val)
{
	return mv88e6xxx_phy_page_write(chip, ADDR_SERDES, SERDES_PAGE_FIBER,
					reg, val);
}

static void mv88e6xxx_g1_irq_mask(struct irq_data *d)
{
	struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d);
	unsigned int n = d->hwirq;

	chip->g1_irq.masked |= (1 << n);
}

static void mv88e6xxx_g1_irq_unmask(struct irq_data *d)
{
	struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d);
	unsigned int n = d->hwirq;

	chip->g1_irq.masked &= ~(1 << n);
}

static irqreturn_t mv88e6xxx_g1_irq_thread_fn(int irq, void *dev_id)
{
	struct mv88e6xxx_chip *chip = dev_id;
	unsigned int nhandled = 0;
	unsigned int sub_irq;
	unsigned int n;
	u16 reg;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &reg);
	mutex_unlock(&chip->reg_lock);

	if (err)
		goto out;

	for (n = 0; n < chip->g1_irq.nirqs; ++n) {
		if (reg & (1 << n)) {
			sub_irq = irq_find_mapping(chip->g1_irq.domain, n);
			handle_nested_irq(sub_irq);
			++nhandled;
		}
	}
out:
	return (nhandled > 0 ? IRQ_HANDLED : IRQ_NONE);
}

static void mv88e6xxx_g1_irq_bus_lock(struct irq_data *d)
{
	struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d);

	mutex_lock(&chip->reg_lock);
}

static void mv88e6xxx_g1_irq_bus_sync_unlock(struct irq_data *d)
{
	struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d);
	u16 mask = GENMASK(chip->g1_irq.nirqs, 0);
	u16 reg;
	int err;

	err = mv88e6xxx_g1_read(chip, GLOBAL_CONTROL, &reg);
	if (err)
		goto out;

	reg &= ~mask;
	reg |= (~chip->g1_irq.masked & mask);

	err = mv88e6xxx_g1_write(chip, GLOBAL_CONTROL, reg);
	if (err)
		goto out;

out:
	mutex_unlock(&chip->reg_lock);
}

static struct irq_chip mv88e6xxx_g1_irq_chip = {
	.name			= "mv88e6xxx-g1",
	.irq_mask		= mv88e6xxx_g1_irq_mask,
	.irq_unmask		= mv88e6xxx_g1_irq_unmask,
	.irq_bus_lock		= mv88e6xxx_g1_irq_bus_lock,
	.irq_bus_sync_unlock	= mv88e6xxx_g1_irq_bus_sync_unlock,
};

static int mv88e6xxx_g1_irq_domain_map(struct irq_domain *d,
				       unsigned int irq,
				       irq_hw_number_t hwirq)
{
	struct mv88e6xxx_chip *chip = d->host_data;

	irq_set_chip_data(irq, d->host_data);
	irq_set_chip_and_handler(irq, &chip->g1_irq.chip, handle_level_irq);
	irq_set_noprobe(irq);

	return 0;
}

static const struct irq_domain_ops mv88e6xxx_g1_irq_domain_ops = {
	.map	= mv88e6xxx_g1_irq_domain_map,
	.xlate	= irq_domain_xlate_twocell,
};

static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip)
{
	int irq, virq;
	u16 mask;

	mv88e6xxx_g1_read(chip, GLOBAL_CONTROL, &mask);
	mask |= GENMASK(chip->g1_irq.nirqs, 0);
	mv88e6xxx_g1_write(chip, GLOBAL_CONTROL, mask);

	free_irq(chip->irq, chip);

	for (irq = 0; irq < chip->g1_irq.nirqs; irq++) {
		virq = irq_find_mapping(chip->g1_irq.domain, irq);
		irq_dispose_mapping(virq);
	}

	irq_domain_remove(chip->g1_irq.domain);
}

static int mv88e6xxx_g1_irq_setup(struct mv88e6xxx_chip *chip)
{
	int err, irq, virq;
	u16 reg, mask;

	chip->g1_irq.nirqs = chip->info->g1_irqs;
	chip->g1_irq.domain = irq_domain_add_simple(
		NULL, chip->g1_irq.nirqs, 0,
		&mv88e6xxx_g1_irq_domain_ops, chip);
	if (!chip->g1_irq.domain)
		return -ENOMEM;

	for (irq = 0; irq < chip->g1_irq.nirqs; irq++)
		irq_create_mapping(chip->g1_irq.domain, irq);

	chip->g1_irq.chip = mv88e6xxx_g1_irq_chip;
	chip->g1_irq.masked = ~0;

	err = mv88e6xxx_g1_read(chip, GLOBAL_CONTROL, &mask);
	if (err)
		goto out_mapping;

	mask &= ~GENMASK(chip->g1_irq.nirqs, 0);

	err = mv88e6xxx_g1_write(chip, GLOBAL_CONTROL, mask);
	if (err)
		goto out_disable;

	/* Reading the interrupt status clears (most of) them */
	err = mv88e6xxx_g1_read(chip, GLOBAL_STATUS, &reg);
	if (err)
		goto out_disable;

	err = request_threaded_irq(chip->irq, NULL,
				   mv88e6xxx_g1_irq_thread_fn,
				   IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
				   dev_name(chip->dev), chip);
	if (err)
		goto out_disable;

	return 0;

out_disable:
	mask |= GENMASK(chip->g1_irq.nirqs, 0);
	mv88e6xxx_g1_write(chip, GLOBAL_CONTROL, mask);

out_mapping:
	for (irq = 0; irq < 16; irq++) {
		virq = irq_find_mapping(chip->g1_irq.domain, irq);
		irq_dispose_mapping(virq);
	}

	irq_domain_remove(chip->g1_irq.domain);

	return err;
}

int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg, u16 mask)
{
	int i;

	for (i = 0; i < 16; i++) {
		u16 val;
		int err;

		err = mv88e6xxx_read(chip, addr, reg, &val);
		if (err)
			return err;

		if (!(val & mask))
			return 0;

		usleep_range(1000, 2000);
	}

	dev_err(chip->dev, "Timeout while waiting for switch\n");
	return -ETIMEDOUT;
}

/* Indirect write to single pointer-data register with an Update bit */
int mv88e6xxx_update(struct mv88e6xxx_chip *chip, int addr, int reg, u16 update)
{
	u16 val;
	int err;

	/* Wait until the previous operation is completed */
	err = mv88e6xxx_wait(chip, addr, reg, BIT(15));
	if (err)
		return err;

	/* Set the Update bit to trigger a write operation */
	val = BIT(15) | update;

	return mv88e6xxx_write(chip, addr, reg, val);
}

static int mv88e6xxx_port_setup_mac(struct mv88e6xxx_chip *chip, int port,
				    int link, int speed, int duplex,
				    phy_interface_t mode)
{
	int err;

	if (!chip->info->ops->port_set_link)
		return 0;

	/* Port's MAC control must not be changed unless the link is down */
	err = chip->info->ops->port_set_link(chip, port, 0);
	if (err)
		return err;

	if (chip->info->ops->port_set_speed) {
		err = chip->info->ops->port_set_speed(chip, port, speed);
		if (err && err != -EOPNOTSUPP)
			goto restore_link;
	}

	if (chip->info->ops->port_set_duplex) {
		err = chip->info->ops->port_set_duplex(chip, port, duplex);
		if (err && err != -EOPNOTSUPP)
			goto restore_link;
	}

	if (chip->info->ops->port_set_rgmii_delay) {
		err = chip->info->ops->port_set_rgmii_delay(chip, port, mode);
		if (err && err != -EOPNOTSUPP)
			goto restore_link;
	}

	if (chip->info->ops->port_set_cmode) {
		err = chip->info->ops->port_set_cmode(chip, port, mode);
		if (err && err != -EOPNOTSUPP)
			goto restore_link;
	}

	err = 0;
restore_link:
	if (chip->info->ops->port_set_link(chip, port, link))
		netdev_err(chip->ds->ports[port].netdev,
			   "failed to restore MAC's link\n");

	return err;
}

/* We expect the switch to perform auto negotiation if there is a real
 * phy. However, in the case of a fixed link phy, we force the port
 * settings from the fixed link settings.
 */
static void mv88e6xxx_adjust_link(struct dsa_switch *ds, int port,
				  struct phy_device *phydev)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	if (!phy_is_pseudo_fixed_link(phydev))
		return;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_setup_mac(chip, port, phydev->link, phydev->speed,
				       phydev->duplex, phydev->interface);
	mutex_unlock(&chip->reg_lock);

	if (err && err != -EOPNOTSUPP)
		netdev_err(ds->ports[port].netdev, "failed to configure MAC\n");
}

static int mv88e6xxx_stats_snapshot(struct mv88e6xxx_chip *chip, int port)
{
	if (!chip->info->ops->stats_snapshot)
		return -EOPNOTSUPP;

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

static struct mv88e6xxx_hw_stat mv88e6xxx_hw_stats[] = {
	{ "in_good_octets",		8, 0x00, STATS_TYPE_BANK0, },
	{ "in_bad_octets",		4, 0x02, STATS_TYPE_BANK0, },
	{ "in_unicast",			4, 0x04, STATS_TYPE_BANK0, },
	{ "in_broadcasts",		4, 0x06, STATS_TYPE_BANK0, },
	{ "in_multicasts",		4, 0x07, STATS_TYPE_BANK0, },
	{ "in_pause",			4, 0x16, STATS_TYPE_BANK0, },
	{ "in_undersize",		4, 0x18, STATS_TYPE_BANK0, },
	{ "in_fragments",		4, 0x19, STATS_TYPE_BANK0, },
	{ "in_oversize",		4, 0x1a, STATS_TYPE_BANK0, },
	{ "in_jabber",			4, 0x1b, STATS_TYPE_BANK0, },
	{ "in_rx_error",		4, 0x1c, STATS_TYPE_BANK0, },
	{ "in_fcs_error",		4, 0x1d, STATS_TYPE_BANK0, },
	{ "out_octets",			8, 0x0e, STATS_TYPE_BANK0, },
	{ "out_unicast",		4, 0x10, STATS_TYPE_BANK0, },
	{ "out_broadcasts",		4, 0x13, STATS_TYPE_BANK0, },
	{ "out_multicasts",		4, 0x12, STATS_TYPE_BANK0, },
	{ "out_pause",			4, 0x15, STATS_TYPE_BANK0, },
	{ "excessive",			4, 0x11, STATS_TYPE_BANK0, },
	{ "collisions",			4, 0x1e, STATS_TYPE_BANK0, },
	{ "deferred",			4, 0x05, STATS_TYPE_BANK0, },
	{ "single",			4, 0x14, STATS_TYPE_BANK0, },
	{ "multiple",			4, 0x17, STATS_TYPE_BANK0, },
	{ "out_fcs_error",		4, 0x03, STATS_TYPE_BANK0, },
	{ "late",			4, 0x1f, STATS_TYPE_BANK0, },
	{ "hist_64bytes",		4, 0x08, STATS_TYPE_BANK0, },
	{ "hist_65_127bytes",		4, 0x09, STATS_TYPE_BANK0, },
	{ "hist_128_255bytes",		4, 0x0a, STATS_TYPE_BANK0, },
	{ "hist_256_511bytes",		4, 0x0b, STATS_TYPE_BANK0, },
	{ "hist_512_1023bytes",		4, 0x0c, STATS_TYPE_BANK0, },
	{ "hist_1024_max_bytes",	4, 0x0d, STATS_TYPE_BANK0, },
	{ "sw_in_discards",		4, 0x10, STATS_TYPE_PORT, },
	{ "sw_in_filtered",		2, 0x12, STATS_TYPE_PORT, },
	{ "sw_out_filtered",		2, 0x13, STATS_TYPE_PORT, },
	{ "in_discards",		4, 0x00, STATS_TYPE_BANK1, },
	{ "in_filtered",		4, 0x01, STATS_TYPE_BANK1, },
	{ "in_accepted",		4, 0x02, STATS_TYPE_BANK1, },
	{ "in_bad_accepted",		4, 0x03, STATS_TYPE_BANK1, },
	{ "in_good_avb_class_a",	4, 0x04, STATS_TYPE_BANK1, },
	{ "in_good_avb_class_b",	4, 0x05, STATS_TYPE_BANK1, },
	{ "in_bad_avb_class_a",		4, 0x06, STATS_TYPE_BANK1, },
	{ "in_bad_avb_class_b",		4, 0x07, STATS_TYPE_BANK1, },
	{ "tcam_counter_0",		4, 0x08, STATS_TYPE_BANK1, },
	{ "tcam_counter_1",		4, 0x09, STATS_TYPE_BANK1, },
	{ "tcam_counter_2",		4, 0x0a, STATS_TYPE_BANK1, },
	{ "tcam_counter_3",		4, 0x0b, STATS_TYPE_BANK1, },
	{ "in_da_unknown",		4, 0x0e, STATS_TYPE_BANK1, },
	{ "in_management",		4, 0x0f, STATS_TYPE_BANK1, },
	{ "out_queue_0",		4, 0x10, STATS_TYPE_BANK1, },
	{ "out_queue_1",		4, 0x11, STATS_TYPE_BANK1, },
	{ "out_queue_2",		4, 0x12, STATS_TYPE_BANK1, },
	{ "out_queue_3",		4, 0x13, STATS_TYPE_BANK1, },
	{ "out_queue_4",		4, 0x14, STATS_TYPE_BANK1, },
	{ "out_queue_5",		4, 0x15, STATS_TYPE_BANK1, },
	{ "out_queue_6",		4, 0x16, STATS_TYPE_BANK1, },
	{ "out_queue_7",		4, 0x17, STATS_TYPE_BANK1, },
	{ "out_cut_through",		4, 0x18, STATS_TYPE_BANK1, },
	{ "out_octets_a",		4, 0x1a, STATS_TYPE_BANK1, },
	{ "out_octets_b",		4, 0x1b, STATS_TYPE_BANK1, },
	{ "out_management",		4, 0x1f, STATS_TYPE_BANK1, },
};

static uint64_t _mv88e6xxx_get_ethtool_stat(struct mv88e6xxx_chip *chip,
					    struct mv88e6xxx_hw_stat *s,
					    int port, u16 bank1_select,
					    u16 histogram)
{
	u32 low;
	u32 high = 0;
	u16 reg = 0;
	int err;
	u64 value;

	switch (s->type) {
	case STATS_TYPE_PORT:
		err = mv88e6xxx_port_read(chip, port, s->reg, &reg);
		if (err)
			return UINT64_MAX;

		low = reg;
		if (s->sizeof_stat == 4) {
			err = mv88e6xxx_port_read(chip, port, s->reg + 1, &reg);
			if (err)
				return UINT64_MAX;
			high = reg;
		}
		break;
	case STATS_TYPE_BANK1:
		reg = bank1_select;
		/* fall through */
	case STATS_TYPE_BANK0:
		reg |= s->reg | histogram;
		mv88e6xxx_g1_stats_read(chip, reg, &low);
		if (s->sizeof_stat == 8)
			mv88e6xxx_g1_stats_read(chip, reg + 1, &high);
		break;
	default:
		return UINT64_MAX;
	}
	value = (((u64)high) << 16) | low;
	return value;
}

static void mv88e6xxx_stats_get_strings(struct mv88e6xxx_chip *chip,
					uint8_t *data, int types)
{
	struct mv88e6xxx_hw_stat *stat;
	int i, j;

	for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) {
		stat = &mv88e6xxx_hw_stats[i];
		if (stat->type & types) {
			memcpy(data + j * ETH_GSTRING_LEN, stat->string,
			       ETH_GSTRING_LEN);
			j++;
		}
	}
}

static void mv88e6095_stats_get_strings(struct mv88e6xxx_chip *chip,
					uint8_t *data)
{
	mv88e6xxx_stats_get_strings(chip, data,
				    STATS_TYPE_BANK0 | STATS_TYPE_PORT);
}

static void mv88e6320_stats_get_strings(struct mv88e6xxx_chip *chip,
					uint8_t *data)
{
	mv88e6xxx_stats_get_strings(chip, data,
				    STATS_TYPE_BANK0 | STATS_TYPE_BANK1);
}

static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port,
				  uint8_t *data)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	if (chip->info->ops->stats_get_strings)
		chip->info->ops->stats_get_strings(chip, data);
}

static int mv88e6xxx_stats_get_sset_count(struct mv88e6xxx_chip *chip,
					  int types)
{
	struct mv88e6xxx_hw_stat *stat;
	int i, j;

	for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) {
		stat = &mv88e6xxx_hw_stats[i];
		if (stat->type & types)
			j++;
	}
	return j;
}

static int mv88e6095_stats_get_sset_count(struct mv88e6xxx_chip *chip)
{
	return mv88e6xxx_stats_get_sset_count(chip, STATS_TYPE_BANK0 |
					      STATS_TYPE_PORT);
}

static int mv88e6320_stats_get_sset_count(struct mv88e6xxx_chip *chip)
{
	return mv88e6xxx_stats_get_sset_count(chip, STATS_TYPE_BANK0 |
					      STATS_TYPE_BANK1);
}

static int mv88e6xxx_get_sset_count(struct dsa_switch *ds)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	if (chip->info->ops->stats_get_sset_count)
		return chip->info->ops->stats_get_sset_count(chip);

	return 0;
}

static void mv88e6xxx_stats_get_stats(struct mv88e6xxx_chip *chip, int port,
				      uint64_t *data, int types,
				      u16 bank1_select, u16 histogram)
{
	struct mv88e6xxx_hw_stat *stat;
	int i, j;

	for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) {
		stat = &mv88e6xxx_hw_stats[i];
		if (stat->type & types) {
			data[j] = _mv88e6xxx_get_ethtool_stat(chip, stat, port,
							      bank1_select,
							      histogram);
			j++;
		}
	}
}

static void mv88e6095_stats_get_stats(struct mv88e6xxx_chip *chip, int port,
				      uint64_t *data)
{
	return mv88e6xxx_stats_get_stats(chip, port, data,
					 STATS_TYPE_BANK0 | STATS_TYPE_PORT,
					 0, GLOBAL_STATS_OP_HIST_RX_TX);
}

static void mv88e6320_stats_get_stats(struct mv88e6xxx_chip *chip, int port,
				      uint64_t *data)
{
	return mv88e6xxx_stats_get_stats(chip, port, data,
					 STATS_TYPE_BANK0 | STATS_TYPE_BANK1,
					 GLOBAL_STATS_OP_BANK_1_BIT_9,
					 GLOBAL_STATS_OP_HIST_RX_TX);
}

static void mv88e6390_stats_get_stats(struct mv88e6xxx_chip *chip, int port,
				      uint64_t *data)
{
	return mv88e6xxx_stats_get_stats(chip, port, data,
					 STATS_TYPE_BANK0 | STATS_TYPE_BANK1,
					 GLOBAL_STATS_OP_BANK_1_BIT_10, 0);
}

static void mv88e6xxx_get_stats(struct mv88e6xxx_chip *chip, int port,
				uint64_t *data)
{
	if (chip->info->ops->stats_get_stats)
		chip->info->ops->stats_get_stats(chip, port, data);
}

static void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port,
					uint64_t *data)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int ret;

	mutex_lock(&chip->reg_lock);

	ret = mv88e6xxx_stats_snapshot(chip, port);
	if (ret < 0) {
		mutex_unlock(&chip->reg_lock);
		return;
	}

	mv88e6xxx_get_stats(chip, port, data);

	mutex_unlock(&chip->reg_lock);
}

static int mv88e6xxx_stats_set_histogram(struct mv88e6xxx_chip *chip)
{
	if (chip->info->ops->stats_set_histogram)
		return chip->info->ops->stats_set_histogram(chip);

	return 0;
}

static int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port)
{
	return 32 * sizeof(u16);
}

static void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
			       struct ethtool_regs *regs, void *_p)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;
	u16 reg;
	u16 *p = _p;
	int i;

	regs->version = 0;

	memset(p, 0xff, 32 * sizeof(u16));

	mutex_lock(&chip->reg_lock);

	for (i = 0; i < 32; i++) {

		err = mv88e6xxx_port_read(chip, port, i, &reg);
		if (!err)
			p[i] = reg;
	}

	mutex_unlock(&chip->reg_lock);
}

static int mv88e6xxx_get_eee(struct dsa_switch *ds, int port,
			     struct ethtool_eee *e)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	u16 reg;
	int err;

	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE))
		return -EOPNOTSUPP;

	mutex_lock(&chip->reg_lock);

	err = mv88e6xxx_phy_read(chip, port, 16, &reg);
	if (err)
		goto out;

	e->eee_enabled = !!(reg & 0x0200);
	e->tx_lpi_enabled = !!(reg & 0x0100);

	err = mv88e6xxx_port_read(chip, port, PORT_STATUS, &reg);
	if (err)
		goto out;

	e->eee_active = !!(reg & PORT_STATUS_EEE);
out:
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
			     struct phy_device *phydev, struct ethtool_eee *e)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	u16 reg;
	int err;

	if (!mv88e6xxx_has(chip, MV88E6XXX_FLAG_EEE))
		return -EOPNOTSUPP;

	mutex_lock(&chip->reg_lock);

	err = mv88e6xxx_phy_read(chip, port, 16, &reg);
	if (err)
		goto out;

	reg &= ~0x0300;
	if (e->eee_enabled)
		reg |= 0x0200;
	if (e->tx_lpi_enabled)
		reg |= 0x0100;

	err = mv88e6xxx_phy_write(chip, port, 16, reg);
out:
	mutex_unlock(&chip->reg_lock);

	return err;
}

static u16 mv88e6xxx_port_vlan(struct mv88e6xxx_chip *chip, int dev, int port)
{
	struct dsa_switch *ds = NULL;
	struct net_device *br;
	u16 pvlan;
	int i;

	if (dev < DSA_MAX_SWITCHES)
		ds = chip->ds->dst->ds[dev];

	/* Prevent frames from unknown switch or port */
	if (!ds || port >= ds->num_ports)
		return 0;

	/* Frames from DSA links and CPU ports can egress any local port */
	if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))
		return mv88e6xxx_port_mask(chip);

	br = ds->ports[port].bridge_dev;
	pvlan = 0;

	/* Frames from user ports can egress any local DSA links and CPU ports,
	 * as well as any local member of their bridge group.
	 */
	for (i = 0; i < mv88e6xxx_num_ports(chip); ++i)
		if (dsa_is_cpu_port(chip->ds, i) ||
		    dsa_is_dsa_port(chip->ds, i) ||
		    (br && chip->ds->ports[i].bridge_dev == br))
			pvlan |= BIT(i);

	return pvlan;
}

static int mv88e6xxx_port_vlan_map(struct mv88e6xxx_chip *chip, int port)
{
	u16 output_ports = mv88e6xxx_port_vlan(chip, chip->ds->index, port);

	/* prevent frames from going back out of the port they came in on */
	output_ports &= ~BIT(port);

	return mv88e6xxx_port_set_vlan_map(chip, port, output_ports);
}

static void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port,
					 u8 state)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int stp_state;
	int err;

	switch (state) {
	case BR_STATE_DISABLED:
		stp_state = PORT_CONTROL_STATE_DISABLED;
		break;
	case BR_STATE_BLOCKING:
	case BR_STATE_LISTENING:
		stp_state = PORT_CONTROL_STATE_BLOCKING;
		break;
	case BR_STATE_LEARNING:
		stp_state = PORT_CONTROL_STATE_LEARNING;
		break;
	case BR_STATE_FORWARDING:
	default:
		stp_state = PORT_CONTROL_STATE_FORWARDING;
		break;
	}

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_set_state(chip, port, stp_state);
	mutex_unlock(&chip->reg_lock);

	if (err)
		netdev_err(ds->ports[port].netdev, "failed to update state\n");
}

static int mv88e6xxx_atu_setup(struct mv88e6xxx_chip *chip)
{
	int err;

	err = mv88e6xxx_g1_atu_flush(chip, 0, true);
	if (err)
		return err;

	err = mv88e6xxx_g1_atu_set_learn2all(chip, true);
	if (err)
		return err;

	return mv88e6xxx_g1_atu_set_age_time(chip, 300000);
}

static int mv88e6xxx_pvt_map(struct mv88e6xxx_chip *chip, int dev, int port)
{
	u16 pvlan = 0;

	if (!mv88e6xxx_has_pvt(chip))
		return -EOPNOTSUPP;

	/* Skip the local source device, which uses in-chip port VLAN */
	if (dev != chip->ds->index)
		pvlan = mv88e6xxx_port_vlan(chip, dev, port);

	return mv88e6xxx_g2_pvt_write(chip, dev, port, pvlan);
}

static int mv88e6xxx_pvt_setup(struct mv88e6xxx_chip *chip)
{
	int dev, port;
	int err;

	if (!mv88e6xxx_has_pvt(chip))
		return 0;

	/* Clear 5 Bit Port for usage with Marvell Link Street devices:
	 * use 4 bits for the Src_Port/Src_Trunk and 5 bits for the Src_Dev.
	 */
	err = mv88e6xxx_g2_misc_4_bit_port(chip);
	if (err)
		return err;

	for (dev = 0; dev < MV88E6XXX_MAX_PVT_SWITCHES; ++dev) {
		for (port = 0; port < MV88E6XXX_MAX_PVT_PORTS; ++port) {
			err = mv88e6xxx_pvt_map(chip, dev, port);
			if (err)
				return err;
		}
	}

	return 0;
}

static void mv88e6xxx_port_fast_age(struct dsa_switch *ds, int port)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_g1_atu_remove(chip, 0, port, false);
	mutex_unlock(&chip->reg_lock);

	if (err)
		netdev_err(ds->ports[port].netdev, "failed to flush ATU\n");
}

static int mv88e6xxx_vtu_setup(struct mv88e6xxx_chip *chip)
{
	if (!chip->info->max_vid)
		return 0;

	return mv88e6xxx_g1_vtu_flush(chip);
}

static int mv88e6xxx_vtu_getnext(struct mv88e6xxx_chip *chip,
				 struct mv88e6xxx_vtu_entry *entry)
{
	if (!chip->info->ops->vtu_getnext)
		return -EOPNOTSUPP;

	return chip->info->ops->vtu_getnext(chip, entry);
}

static int mv88e6xxx_vtu_loadpurge(struct mv88e6xxx_chip *chip,
				   struct mv88e6xxx_vtu_entry *entry)
{
	if (!chip->info->ops->vtu_loadpurge)
		return -EOPNOTSUPP;

	return chip->info->ops->vtu_loadpurge(chip, entry);
}

static int mv88e6xxx_port_vlan_dump(struct dsa_switch *ds, int port,
				    struct switchdev_obj_port_vlan *vlan,
				    switchdev_obj_dump_cb_t *cb)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	struct mv88e6xxx_vtu_entry next = {
		.vid = chip->info->max_vid,
	};
	u16 pvid;
	int err;

	if (!chip->info->max_vid)
		return -EOPNOTSUPP;

	mutex_lock(&chip->reg_lock);

	err = mv88e6xxx_port_get_pvid(chip, port, &pvid);
	if (err)
		goto unlock;

	do {
		err = mv88e6xxx_vtu_getnext(chip, &next);
		if (err)
			break;

		if (!next.valid)
			break;

		if (next.member[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER)
			continue;

		/* reinit and dump this VLAN obj */
		vlan->vid_begin = next.vid;
		vlan->vid_end = next.vid;
		vlan->flags = 0;

		if (next.member[port] == GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED)
			vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;

		if (next.vid == pvid)
			vlan->flags |= BRIDGE_VLAN_INFO_PVID;

		err = cb(&vlan->obj);
		if (err)
			break;
	} while (next.vid < chip->info->max_vid);

unlock:
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid)
{
	DECLARE_BITMAP(fid_bitmap, MV88E6XXX_N_FID);
	struct mv88e6xxx_vtu_entry vlan = {
		.vid = chip->info->max_vid,
	};
	int i, err;

	bitmap_zero(fid_bitmap, MV88E6XXX_N_FID);

	/* Set every FID bit used by the (un)bridged ports */
	for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
		err = mv88e6xxx_port_get_fid(chip, i, fid);
		if (err)
			return err;

		set_bit(*fid, fid_bitmap);
	}

	/* Set every FID bit used by the VLAN entries */
	do {
		err = mv88e6xxx_vtu_getnext(chip, &vlan);
		if (err)
			return err;

		if (!vlan.valid)
			break;

		set_bit(vlan.fid, fid_bitmap);
	} while (vlan.vid < chip->info->max_vid);

	/* The reset value 0x000 is used to indicate that multiple address
	 * databases are not needed. Return the next positive available.
	 */
	*fid = find_next_zero_bit(fid_bitmap, MV88E6XXX_N_FID, 1);
	if (unlikely(*fid >= mv88e6xxx_num_databases(chip)))
		return -ENOSPC;

	/* Clear the database */
	return mv88e6xxx_g1_atu_flush(chip, *fid, true);
}

static int mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid,
			     struct mv88e6xxx_vtu_entry *entry, bool new)
{
	int err;

	if (!vid)
		return -EINVAL;

	entry->vid = vid - 1;
	entry->valid = false;

	err = mv88e6xxx_vtu_getnext(chip, entry);
	if (err)
		return err;

	if (entry->vid == vid && entry->valid)
		return 0;

	if (new) {
		int i;

		/* Initialize a fresh VLAN entry */
		memset(entry, 0, sizeof(*entry));
		entry->valid = true;
		entry->vid = vid;

		/* Include only CPU and DSA ports */
		for (i = 0; i < mv88e6xxx_num_ports(chip); ++i)
			entry->member[i] = dsa_is_normal_port(chip->ds, i) ?
				GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER :
				GLOBAL_VTU_DATA_MEMBER_TAG_UNMODIFIED;

		return mv88e6xxx_atu_new(chip, &entry->fid);
	}

	/* switchdev expects -EOPNOTSUPP to honor software VLANs */
	return -EOPNOTSUPP;
}

static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
					u16 vid_begin, u16 vid_end)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	struct mv88e6xxx_vtu_entry vlan = {
		.vid = vid_begin - 1,
	};
	int i, err;

	if (!vid_begin)
		return -EOPNOTSUPP;

	mutex_lock(&chip->reg_lock);

	do {
		err = mv88e6xxx_vtu_getnext(chip, &vlan);
		if (err)
			goto unlock;

		if (!vlan.valid)
			break;

		if (vlan.vid > vid_end)
			break;

		for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
			if (dsa_is_dsa_port(ds, i) || dsa_is_cpu_port(ds, i))
				continue;

			if (!ds->ports[port].netdev)
				continue;

			if (vlan.member[i] ==
			    GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER)
				continue;

			if (ds->ports[i].bridge_dev ==
			    ds->ports[port].bridge_dev)
				break; /* same bridge, check next VLAN */

			if (!ds->ports[i].bridge_dev)
				continue;

			netdev_warn(ds->ports[port].netdev,
				    "hardware VLAN %d already used by %s\n",
				    vlan.vid,
				    netdev_name(ds->ports[i].bridge_dev));
			err = -EOPNOTSUPP;
			goto unlock;
		}
	} while (vlan.vid < vid_end);

unlock:
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_port_vlan_filtering(struct dsa_switch *ds, int port,
					 bool vlan_filtering)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	u16 mode = vlan_filtering ? PORT_CONTROL_2_8021Q_SECURE :
		PORT_CONTROL_2_8021Q_DISABLED;
	int err;

	if (!chip->info->max_vid)
		return -EOPNOTSUPP;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_set_8021q_mode(chip, port, mode);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int
mv88e6xxx_port_vlan_prepare(struct dsa_switch *ds, int port,
			    const struct switchdev_obj_port_vlan *vlan,
			    struct switchdev_trans *trans)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	if (!chip->info->max_vid)
		return -EOPNOTSUPP;

	/* If the requested port doesn't belong to the same bridge as the VLAN
	 * members, do not support it (yet) and fallback to software VLAN.
	 */
	err = mv88e6xxx_port_check_hw_vlan(ds, port, vlan->vid_begin,
					   vlan->vid_end);
	if (err)
		return err;

	/* We don't need any dynamic resource from the kernel (yet),
	 * so skip the prepare phase.
	 */
	return 0;
}

static int _mv88e6xxx_port_vlan_add(struct mv88e6xxx_chip *chip, int port,
				    u16 vid, bool untagged)
{
	struct mv88e6xxx_vtu_entry vlan;
	int err;

	err = mv88e6xxx_vtu_get(chip, vid, &vlan, true);
	if (err)
		return err;

	vlan.member[port] = untagged ?
		GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED :
		GLOBAL_VTU_DATA_MEMBER_TAG_TAGGED;

	return mv88e6xxx_vtu_loadpurge(chip, &vlan);
}

static void mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port,
				    const struct switchdev_obj_port_vlan *vlan,
				    struct switchdev_trans *trans)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
	u16 vid;

	if (!chip->info->max_vid)
		return;

	mutex_lock(&chip->reg_lock);

	for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid)
		if (_mv88e6xxx_port_vlan_add(chip, port, vid, untagged))
			netdev_err(ds->ports[port].netdev,
				   "failed to add VLAN %d%c\n",
				   vid, untagged ? 'u' : 't');

	if (pvid && mv88e6xxx_port_set_pvid(chip, port, vlan->vid_end))
		netdev_err(ds->ports[port].netdev, "failed to set PVID %d\n",
			   vlan->vid_end);

	mutex_unlock(&chip->reg_lock);
}

static int _mv88e6xxx_port_vlan_del(struct mv88e6xxx_chip *chip,
				    int port, u16 vid)
{
	struct dsa_switch *ds = chip->ds;
	struct mv88e6xxx_vtu_entry vlan;
	int i, err;

	err = mv88e6xxx_vtu_get(chip, vid, &vlan, false);
	if (err)
		return err;

	/* Tell switchdev if this VLAN is handled in software */
	if (vlan.member[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER)
		return -EOPNOTSUPP;

	vlan.member[port] = GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER;

	/* keep the VLAN unless all ports are excluded */
	vlan.valid = false;
	for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
		if (dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i))
			continue;

		if (vlan.member[i] != GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) {
			vlan.valid = true;
			break;
		}
	}

	err = mv88e6xxx_vtu_loadpurge(chip, &vlan);
	if (err)
		return err;

	return mv88e6xxx_g1_atu_remove(chip, vlan.fid, port, false);
}

static int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port,
				   const struct switchdev_obj_port_vlan *vlan)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	u16 pvid, vid;
	int err = 0;

	if (!chip->info->max_vid)
		return -EOPNOTSUPP;

	mutex_lock(&chip->reg_lock);

	err = mv88e6xxx_port_get_pvid(chip, port, &pvid);
	if (err)
		goto unlock;

	for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
		err = _mv88e6xxx_port_vlan_del(chip, port, vid);
		if (err)
			goto unlock;

		if (vid == pvid) {
			err = mv88e6xxx_port_set_pvid(chip, port, 0);
			if (err)
				goto unlock;
		}
	}

unlock:
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_port_db_load_purge(struct mv88e6xxx_chip *chip, int port,
					const unsigned char *addr, u16 vid,
					u8 state)
{
	struct mv88e6xxx_vtu_entry vlan;
	struct mv88e6xxx_atu_entry entry;
	int err;

	/* Null VLAN ID corresponds to the port private database */
	if (vid == 0)
		err = mv88e6xxx_port_get_fid(chip, port, &vlan.fid);
	else
		err = mv88e6xxx_vtu_get(chip, vid, &vlan, false);
	if (err)
		return err;

	entry.state = GLOBAL_ATU_DATA_STATE_UNUSED;
	ether_addr_copy(entry.mac, addr);
	eth_addr_dec(entry.mac);

	err = mv88e6xxx_g1_atu_getnext(chip, vlan.fid, &entry);
	if (err)
		return err;

	/* Initialize a fresh ATU entry if it isn't found */
	if (entry.state == GLOBAL_ATU_DATA_STATE_UNUSED ||
	    !ether_addr_equal(entry.mac, addr)) {
		memset(&entry, 0, sizeof(entry));
		ether_addr_copy(entry.mac, addr);
	}

	/* Purge the ATU entry only if no port is using it anymore */
	if (state == GLOBAL_ATU_DATA_STATE_UNUSED) {
		entry.portvec &= ~BIT(port);
		if (!entry.portvec)
			entry.state = GLOBAL_ATU_DATA_STATE_UNUSED;
	} else {
		entry.portvec |= BIT(port);
		entry.state = state;
	}

	return mv88e6xxx_g1_atu_loadpurge(chip, vlan.fid, &entry);
}

static int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port,
				      const struct switchdev_obj_port_fdb *fdb,
				      struct switchdev_trans *trans)
{
	/* We don't need any dynamic resource from the kernel (yet),
	 * so skip the prepare phase.
	 */
	return 0;
}

static void mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
				   const struct switchdev_obj_port_fdb *fdb,
				   struct switchdev_trans *trans)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	mutex_lock(&chip->reg_lock);
	if (mv88e6xxx_port_db_load_purge(chip, port, fdb->addr, fdb->vid,
					 GLOBAL_ATU_DATA_STATE_UC_STATIC))
		netdev_err(ds->ports[port].netdev, "failed to load unicast MAC address\n");
	mutex_unlock(&chip->reg_lock);
}

static int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port,
				  const struct switchdev_obj_port_fdb *fdb)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_db_load_purge(chip, port, fdb->addr, fdb->vid,
					   GLOBAL_ATU_DATA_STATE_UNUSED);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_port_db_dump_fid(struct mv88e6xxx_chip *chip,
				      u16 fid, u16 vid, int port,
				      struct switchdev_obj *obj,
				      switchdev_obj_dump_cb_t *cb)
{
	struct mv88e6xxx_atu_entry addr;
	int err;

	addr.state = GLOBAL_ATU_DATA_STATE_UNUSED;
	eth_broadcast_addr(addr.mac);

	do {
		err = mv88e6xxx_g1_atu_getnext(chip, fid, &addr);
		if (err)
			return err;

		if (addr.state == GLOBAL_ATU_DATA_STATE_UNUSED)
			break;

		if (addr.trunk || (addr.portvec & BIT(port)) == 0)
			continue;

		if (obj->id == SWITCHDEV_OBJ_ID_PORT_FDB) {
			struct switchdev_obj_port_fdb *fdb;

			if (!is_unicast_ether_addr(addr.mac))
				continue;

			fdb = SWITCHDEV_OBJ_PORT_FDB(obj);
			fdb->vid = vid;
			ether_addr_copy(fdb->addr, addr.mac);
			if (addr.state == GLOBAL_ATU_DATA_STATE_UC_STATIC)
				fdb->ndm_state = NUD_NOARP;
			else
				fdb->ndm_state = NUD_REACHABLE;
		} else if (obj->id == SWITCHDEV_OBJ_ID_PORT_MDB) {
			struct switchdev_obj_port_mdb *mdb;

			if (!is_multicast_ether_addr(addr.mac))
				continue;

			mdb = SWITCHDEV_OBJ_PORT_MDB(obj);
			mdb->vid = vid;
			ether_addr_copy(mdb->addr, addr.mac);
		} else {
			return -EOPNOTSUPP;
		}

		err = cb(obj);
		if (err)
			return err;
	} while (!is_broadcast_ether_addr(addr.mac));

	return err;
}

static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port,
				  struct switchdev_obj *obj,
				  switchdev_obj_dump_cb_t *cb)
{
	struct mv88e6xxx_vtu_entry vlan = {
		.vid = chip->info->max_vid,
	};
	u16 fid;
	int err;

	/* Dump port's default Filtering Information Database (VLAN ID 0) */
	err = mv88e6xxx_port_get_fid(chip, port, &fid);
	if (err)
		return err;

	err = mv88e6xxx_port_db_dump_fid(chip, fid, 0, port, obj, cb);
	if (err)
		return err;

	/* Dump VLANs' Filtering Information Databases */
	do {
		err = mv88e6xxx_vtu_getnext(chip, &vlan);
		if (err)
			return err;

		if (!vlan.valid)
			break;

		err = mv88e6xxx_port_db_dump_fid(chip, vlan.fid, vlan.vid, port,
						 obj, cb);
		if (err)
			return err;
	} while (vlan.vid < chip->info->max_vid);

	return err;
}

static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port,
				   struct switchdev_obj_port_fdb *fdb,
				   switchdev_obj_dump_cb_t *cb)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_db_dump(chip, port, &fdb->obj, cb);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip,
				struct net_device *br)
{
	struct dsa_switch *ds;
	int port;
	int dev;
	int err;

	/* Remap the Port VLAN of each local bridge group member */
	for (port = 0; port < mv88e6xxx_num_ports(chip); ++port) {
		if (chip->ds->ports[port].bridge_dev == br) {
			err = mv88e6xxx_port_vlan_map(chip, port);
			if (err)
				return err;
		}
	}

	if (!mv88e6xxx_has_pvt(chip))
		return 0;

	/* Remap the Port VLAN of each cross-chip bridge group member */
	for (dev = 0; dev < DSA_MAX_SWITCHES; ++dev) {
		ds = chip->ds->dst->ds[dev];
		if (!ds)
			break;

		for (port = 0; port < ds->num_ports; ++port) {
			if (ds->ports[port].bridge_dev == br) {
				err = mv88e6xxx_pvt_map(chip, dev, port);
				if (err)
					return err;
			}
		}
	}

	return 0;
}

static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
				      struct net_device *br)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_bridge_map(chip, br);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port,
					struct net_device *br)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	mutex_lock(&chip->reg_lock);
	if (mv88e6xxx_bridge_map(chip, br) ||
	    mv88e6xxx_port_vlan_map(chip, port))
		dev_err(ds->dev, "failed to remap in-chip Port VLAN\n");
	mutex_unlock(&chip->reg_lock);
}

static int mv88e6xxx_crosschip_bridge_join(struct dsa_switch *ds, int dev,
					   int port, struct net_device *br)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	if (!mv88e6xxx_has_pvt(chip))
		return 0;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_pvt_map(chip, dev, port);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static void mv88e6xxx_crosschip_bridge_leave(struct dsa_switch *ds, int dev,
					     int port, struct net_device *br)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	if (!mv88e6xxx_has_pvt(chip))
		return;

	mutex_lock(&chip->reg_lock);
	if (mv88e6xxx_pvt_map(chip, dev, port))
		dev_err(ds->dev, "failed to remap cross-chip Port VLAN\n");
	mutex_unlock(&chip->reg_lock);
}

static int mv88e6xxx_software_reset(struct mv88e6xxx_chip *chip)
{
	if (chip->info->ops->reset)
		return chip->info->ops->reset(chip);

	return 0;
}

static void mv88e6xxx_hardware_reset(struct mv88e6xxx_chip *chip)
{
	struct gpio_desc *gpiod = chip->reset;

	/* If there is a GPIO connected to the reset pin, toggle it */
	if (gpiod) {
		gpiod_set_value_cansleep(gpiod, 1);
		usleep_range(10000, 20000);
		gpiod_set_value_cansleep(gpiod, 0);
		usleep_range(10000, 20000);
	}
}

static int mv88e6xxx_disable_ports(struct mv88e6xxx_chip *chip)
{
	int i, err;

	/* Set all ports to the Disabled state */
	for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
		err = mv88e6xxx_port_set_state(chip, i,
					       PORT_CONTROL_STATE_DISABLED);
		if (err)
			return err;
	}

	/* Wait for transmit queues to drain,
	 * i.e. 2ms for a maximum frame to be transmitted at 10 Mbps.
	 */
	usleep_range(2000, 4000);

	return 0;
}

static int mv88e6xxx_switch_reset(struct mv88e6xxx_chip *chip)
{
	int err;

	err = mv88e6xxx_disable_ports(chip);
	if (err)
		return err;

	mv88e6xxx_hardware_reset(chip);

	return mv88e6xxx_software_reset(chip);
}

static int mv88e6xxx_serdes_power_on(struct mv88e6xxx_chip *chip)
{
	u16 val;
	int err;

	/* Clear Power Down bit */
	err = mv88e6xxx_serdes_read(chip, MII_BMCR, &val);
	if (err)
		return err;

	if (val & BMCR_PDOWN) {
		val &= ~BMCR_PDOWN;
		err = mv88e6xxx_serdes_write(chip, MII_BMCR, val);
	}

	return err;
}

static int mv88e6xxx_set_port_mode(struct mv88e6xxx_chip *chip, int port,
				   enum mv88e6xxx_frame_mode frame, u16 egress,
				   u16 etype)
{
	int err;

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

	err = mv88e6xxx_port_set_egress_mode(chip, port, egress);
	if (err)
		return err;

	err = chip->info->ops->port_set_frame_mode(chip, port, frame);
	if (err)
		return err;

	if (chip->info->ops->port_set_ether_type)
		return chip->info->ops->port_set_ether_type(chip, port, etype);

	return 0;
}

static int mv88e6xxx_set_port_mode_normal(struct mv88e6xxx_chip *chip, int port)
{
	return mv88e6xxx_set_port_mode(chip, port, MV88E6XXX_FRAME_MODE_NORMAL,
				       PORT_CONTROL_EGRESS_UNMODIFIED,
				       PORT_ETH_TYPE_DEFAULT);
}

static int mv88e6xxx_set_port_mode_dsa(struct mv88e6xxx_chip *chip, int port)
{
	return mv88e6xxx_set_port_mode(chip, port, MV88E6XXX_FRAME_MODE_DSA,
				       PORT_CONTROL_EGRESS_UNMODIFIED,
				       PORT_ETH_TYPE_DEFAULT);
}

static int mv88e6xxx_set_port_mode_edsa(struct mv88e6xxx_chip *chip, int port)
{
	return mv88e6xxx_set_port_mode(chip, port,
				       MV88E6XXX_FRAME_MODE_ETHERTYPE,
				       PORT_CONTROL_EGRESS_ADD_TAG, ETH_P_EDSA);
}

static int mv88e6xxx_setup_port_mode(struct mv88e6xxx_chip *chip, int port)
{
	if (dsa_is_dsa_port(chip->ds, port))
		return mv88e6xxx_set_port_mode_dsa(chip, port);

	if (dsa_is_normal_port(chip->ds, port))
		return mv88e6xxx_set_port_mode_normal(chip, port);

	/* Setup CPU port mode depending on its supported tag format */
	if (chip->info->tag_protocol == DSA_TAG_PROTO_DSA)
		return mv88e6xxx_set_port_mode_dsa(chip, port);

	if (chip->info->tag_protocol == DSA_TAG_PROTO_EDSA)
		return mv88e6xxx_set_port_mode_edsa(chip, port);

	return -EINVAL;
}

static int mv88e6xxx_setup_message_port(struct mv88e6xxx_chip *chip, int port)
{
	bool message = dsa_is_dsa_port(chip->ds, port);

	return mv88e6xxx_port_set_message_port(chip, port, message);
}

static int mv88e6xxx_setup_egress_floods(struct mv88e6xxx_chip *chip, int port)
{
	bool flood = port == dsa_upstream_port(chip->ds);

	/* Upstream ports flood frames with unknown unicast or multicast DA */
	if (chip->info->ops->port_set_egress_floods)
		return chip->info->ops->port_set_egress_floods(chip, port,
							       flood, flood);

	return 0;
}

static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
{
	struct dsa_switch *ds = chip->ds;
	int err;
	u16 reg;

	/* MAC Forcing register: don't force link, speed, duplex or flow control
	 * state to any particular values on physical ports, but force the CPU
	 * port and all DSA ports to their maximum bandwidth and full duplex.
	 */
	if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))
		err = mv88e6xxx_port_setup_mac(chip, port, LINK_FORCED_UP,
					       SPEED_MAX, DUPLEX_FULL,
					       PHY_INTERFACE_MODE_NA);
	else
		err = mv88e6xxx_port_setup_mac(chip, port, LINK_UNFORCED,
					       SPEED_UNFORCED, DUPLEX_UNFORCED,
					       PHY_INTERFACE_MODE_NA);
	if (err)
		return err;

	/* Port Control: disable Drop-on-Unlock, disable Drop-on-Lock,
	 * disable Header mode, enable IGMP/MLD snooping, disable VLAN
	 * tunneling, determine priority by looking at 802.1p and IP
	 * priority fields (IP prio has precedence), and set STP state
	 * to Forwarding.
	 *
	 * If this is the CPU link, use DSA or EDSA tagging depending
	 * on which tagging mode was configured.
	 *
	 * If this is a link to another switch, use DSA tagging mode.
	 *
	 * If this is the upstream port for this switch, enable
	 * forwarding of unknown unicasts and multicasts.
	 */
	reg = PORT_CONTROL_IGMP_MLD_SNOOP |
		PORT_CONTROL_USE_TAG | PORT_CONTROL_USE_IP |
		PORT_CONTROL_STATE_FORWARDING;
	err = mv88e6xxx_port_write(chip, port, PORT_CONTROL, reg);
	if (err)
		return err;

	err = mv88e6xxx_setup_port_mode(chip, port);
	if (err)
		return err;

	err = mv88e6xxx_setup_egress_floods(chip, port);
	if (err)
		return err;

	/* If this port is connected to a SerDes, make sure the SerDes is not
	 * powered down.
	 */
	if (mv88e6xxx_has(chip, MV88E6XXX_FLAGS_SERDES)) {
		err = mv88e6xxx_port_read(chip, port, PORT_STATUS, &reg);
		if (err)
			return err;
		reg &= PORT_STATUS_CMODE_MASK;
		if ((reg == PORT_STATUS_CMODE_100BASE_X) ||
		    (reg == PORT_STATUS_CMODE_1000BASE_X) ||
		    (reg == PORT_STATUS_CMODE_SGMII)) {
			err = mv88e6xxx_serdes_power_on(chip);
			if (err < 0)
				return err;
		}
	}

	/* Port Control 2: don't force a good FCS, set the maximum frame size to
	 * 10240 bytes, disable 802.1q tags checking, don't discard tagged or
	 * untagged frames on this port, do a destination address lookup on all
	 * received packets as usual, disable ARP mirroring and don't send a
	 * copy of all transmitted/received frames on this port to the CPU.
	 */
	err = mv88e6xxx_port_set_map_da(chip, port);
	if (err)
		return err;

	reg = 0;
	if (chip->info->ops->port_set_upstream_port) {
		err = chip->info->ops->port_set_upstream_port(
			chip, port, dsa_upstream_port(ds));
		if (err)
			return err;
	}

	err = mv88e6xxx_port_set_8021q_mode(chip, port,
					    PORT_CONTROL_2_8021Q_DISABLED);
	if (err)
		return err;

	if (chip->info->ops->port_jumbo_config) {
		err = chip->info->ops->port_jumbo_config(chip, port);
		if (err)
			return err;
	}

	/* Port Association Vector: when learning source addresses
	 * of packets, add the address to the address database using
	 * a port bitmap that has only the bit for this port set and
	 * the other bits clear.
	 */
	reg = 1 << port;
	/* Disable learning for CPU port */
	if (dsa_is_cpu_port(ds, port))
		reg = 0;

	err = mv88e6xxx_port_write(chip, port, PORT_ASSOC_VECTOR, reg);
	if (err)
		return err;

	/* Egress rate control 2: disable egress rate control. */
	err = mv88e6xxx_port_write(chip, port, PORT_RATE_CONTROL_2, 0x0000);
	if (err)
		return err;

	if (chip->info->ops->port_pause_config) {
		err = chip->info->ops->port_pause_config(chip, port);
		if (err)
			return err;
	}

	if (chip->info->ops->port_disable_learn_limit) {
		err = chip->info->ops->port_disable_learn_limit(chip, port);
		if (err)
			return err;
	}

	if (chip->info->ops->port_disable_pri_override) {
		err = chip->info->ops->port_disable_pri_override(chip, port);
		if (err)
			return err;
	}

	if (chip->info->ops->port_tag_remap) {
		err = chip->info->ops->port_tag_remap(chip, port);
		if (err)
			return err;
	}

	if (chip->info->ops->port_egress_rate_limiting) {
		err = chip->info->ops->port_egress_rate_limiting(chip, port);
		if (err)
			return err;
	}

	err = mv88e6xxx_setup_message_port(chip, port);
	if (err)
		return err;

	/* Port based VLAN map: give each port the same default address
	 * database, and allow bidirectional communication between the
	 * CPU and DSA port(s), and the other ports.
	 */
	err = mv88e6xxx_port_set_fid(chip, port, 0);
	if (err)
		return err;

	err = mv88e6xxx_port_vlan_map(chip, port);
	if (err)
		return err;

	/* Default VLAN ID and priority: don't set a default VLAN
	 * ID, and set the default packet priority to zero.
	 */
	return mv88e6xxx_port_write(chip, port, PORT_DEFAULT_VLAN, 0x0000);
}

static int mv88e6xxx_g1_set_switch_mac(struct mv88e6xxx_chip *chip, u8 *addr)
{
	int err;

	err = mv88e6xxx_g1_write(chip, GLOBAL_MAC_01, (addr[0] << 8) | addr[1]);
	if (err)
		return err;

	err = mv88e6xxx_g1_write(chip, GLOBAL_MAC_23, (addr[2] << 8) | addr[3]);
	if (err)
		return err;

	err = mv88e6xxx_g1_write(chip, GLOBAL_MAC_45, (addr[4] << 8) | addr[5]);
	if (err)
		return err;

	return 0;
}

static int mv88e6xxx_set_ageing_time(struct dsa_switch *ds,
				     unsigned int ageing_time)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_g1_atu_set_age_time(chip, ageing_time);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_g1_setup(struct mv88e6xxx_chip *chip)
{
	struct dsa_switch *ds = chip->ds;
	u32 upstream_port = dsa_upstream_port(ds);
	int err;

	/* Enable the PHY Polling Unit if present, don't discard any packets,
	 * and mask all interrupt sources.
	 */
	err = mv88e6xxx_ppu_enable(chip);
	if (err)
		return err;

	if (chip->info->ops->g1_set_cpu_port) {
		err = chip->info->ops->g1_set_cpu_port(chip, upstream_port);
		if (err)
			return err;
	}

	if (chip->info->ops->g1_set_egress_port) {
		err = chip->info->ops->g1_set_egress_port(chip, upstream_port);
		if (err)
			return err;
	}

	/* Disable remote management, and set the switch's DSA device number. */
	err = mv88e6xxx_g1_write(chip, GLOBAL_CONTROL_2,
				 GLOBAL_CONTROL_2_MULTIPLE_CASCADE |
				 (ds->index & 0x1f));
	if (err)
		return err;

	/* Configure the IP ToS mapping registers. */
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_0, 0x0000);
	if (err)
		return err;
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_1, 0x0000);
	if (err)
		return err;
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_2, 0x5555);
	if (err)
		return err;
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_3, 0x5555);
	if (err)
		return err;
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_4, 0xaaaa);
	if (err)
		return err;
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_5, 0xaaaa);
	if (err)
		return err;
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_6, 0xffff);
	if (err)
		return err;
	err = mv88e6xxx_g1_write(chip, GLOBAL_IP_PRI_7, 0xffff);
	if (err)
		return err;

	/* Configure the IEEE 802.1p priority mapping register. */
	err = mv88e6xxx_g1_write(chip, GLOBAL_IEEE_PRI, 0xfa41);
	if (err)
		return err;

	/* Initialize the statistics unit */
	err = mv88e6xxx_stats_set_histogram(chip);
	if (err)
		return err;

	/* Clear the statistics counters for all ports */
	err = mv88e6xxx_g1_write(chip, GLOBAL_STATS_OP,
				 GLOBAL_STATS_OP_FLUSH_ALL);
	if (err)
		return err;

	/* Wait for the flush to complete. */
	err = mv88e6xxx_g1_stats_wait(chip);
	if (err)
		return err;

	return 0;
}

static int mv88e6xxx_setup(struct dsa_switch *ds)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;
	int i;

	chip->ds = ds;
	ds->slave_mii_bus = mv88e6xxx_default_mdio_bus(chip);

	mutex_lock(&chip->reg_lock);

	/* Setup Switch Port Registers */
	for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
		err = mv88e6xxx_setup_port(chip, i);
		if (err)
			goto unlock;
	}

	/* Setup Switch Global 1 Registers */
	err = mv88e6xxx_g1_setup(chip);
	if (err)
		goto unlock;

	/* Setup Switch Global 2 Registers */
	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_GLOBAL2)) {
		err = mv88e6xxx_g2_setup(chip);
		if (err)
			goto unlock;
	}

	err = mv88e6xxx_vtu_setup(chip);
	if (err)
		goto unlock;

	err = mv88e6xxx_pvt_setup(chip);
	if (err)
		goto unlock;

	err = mv88e6xxx_atu_setup(chip);
	if (err)
		goto unlock;

	/* Some generations have the configuration of sending reserved
	 * management frames to the CPU in global2, others in
	 * global1. Hence it does not fit the two setup functions
	 * above.
	 */
	if (chip->info->ops->mgmt_rsvd2cpu) {
		err = chip->info->ops->mgmt_rsvd2cpu(chip);
		if (err)
			goto unlock;
	}

unlock:
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_set_addr(struct dsa_switch *ds, u8 *addr)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

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

	mutex_lock(&chip->reg_lock);
	err = chip->info->ops->set_switch_mac(chip, addr);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_mdio_read(struct mii_bus *bus, int phy, int reg)
{
	struct mv88e6xxx_mdio_bus *mdio_bus = bus->priv;
	struct mv88e6xxx_chip *chip = mdio_bus->chip;
	u16 val;
	int err;

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

	mutex_lock(&chip->reg_lock);
	err = chip->info->ops->phy_read(chip, bus, phy, reg, &val);
	mutex_unlock(&chip->reg_lock);

	if (reg == MII_PHYSID2) {
		/* Some internal PHYS don't have a model number.  Use
		 * the mv88e6390 family model number instead.
		 */
		if (!(val & 0x3f0))
			val |= PORT_SWITCH_ID_PROD_NUM_6390;
	}

	return err ? err : val;
}

static int mv88e6xxx_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val)
{
	struct mv88e6xxx_mdio_bus *mdio_bus = bus->priv;
	struct mv88e6xxx_chip *chip = mdio_bus->chip;
	int err;

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

	mutex_lock(&chip->reg_lock);
	err = chip->info->ops->phy_write(chip, bus, phy, reg, val);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
				   struct device_node *np,
				   bool external)
{
	static int index;
	struct mv88e6xxx_mdio_bus *mdio_bus;
	struct mii_bus *bus;
	int err;

	bus = devm_mdiobus_alloc_size(chip->dev, sizeof(*mdio_bus));
	if (!bus)
		return -ENOMEM;

	mdio_bus = bus->priv;
	mdio_bus->bus = bus;
	mdio_bus->chip = chip;
	INIT_LIST_HEAD(&mdio_bus->list);
	mdio_bus->external = external;

	if (np) {
		bus->name = np->full_name;
		snprintf(bus->id, MII_BUS_ID_SIZE, "%s", np->full_name);
	} else {
		bus->name = "mv88e6xxx SMI";
		snprintf(bus->id, MII_BUS_ID_SIZE, "mv88e6xxx-%d", index++);
	}

	bus->read = mv88e6xxx_mdio_read;
	bus->write = mv88e6xxx_mdio_write;
	bus->parent = chip->dev;

	if (np)
		err = of_mdiobus_register(bus, np);
	else
		err = mdiobus_register(bus);
	if (err) {
		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
		return err;
	}

	if (external)
		list_add_tail(&mdio_bus->list, &chip->mdios);
	else
		list_add(&mdio_bus->list, &chip->mdios);

	return 0;
}

static const struct of_device_id mv88e6xxx_mdio_external_match[] = {
	{ .compatible = "marvell,mv88e6xxx-mdio-external",
	  .data = (void *)true },
	{ },
};

static int mv88e6xxx_mdios_register(struct mv88e6xxx_chip *chip,
				    struct device_node *np)
{
	const struct of_device_id *match;
	struct device_node *child;
	int err;

	/* Always register one mdio bus for the internal/default mdio
	 * bus. This maybe represented in the device tree, but is
	 * optional.
	 */
	child = of_get_child_by_name(np, "mdio");
	err = mv88e6xxx_mdio_register(chip, child, false);
	if (err)
		return err;

	/* Walk the device tree, and see if there are any other nodes
	 * which say they are compatible with the external mdio
	 * bus.
	 */
	for_each_available_child_of_node(np, child) {
		match = of_match_node(mv88e6xxx_mdio_external_match, child);
		if (match) {
			err = mv88e6xxx_mdio_register(chip, child, true);
			if (err)
				return err;
		}
	}

	return 0;
}

static void mv88e6xxx_mdios_unregister(struct mv88e6xxx_chip *chip)

{
	struct mv88e6xxx_mdio_bus *mdio_bus;
	struct mii_bus *bus;

	list_for_each_entry(mdio_bus, &chip->mdios, list) {
		bus = mdio_bus->bus;

		mdiobus_unregister(bus);
	}
}

static int mv88e6xxx_get_eeprom_len(struct dsa_switch *ds)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	return chip->eeprom_len;
}

static int mv88e6xxx_get_eeprom(struct dsa_switch *ds,
				struct ethtool_eeprom *eeprom, u8 *data)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

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

	mutex_lock(&chip->reg_lock);
	err = chip->info->ops->get_eeprom(chip, eeprom, data);
	mutex_unlock(&chip->reg_lock);

	if (err)
		return err;

	eeprom->magic = 0xc3ec4951;

	return 0;
}

static int mv88e6xxx_set_eeprom(struct dsa_switch *ds,
				struct ethtool_eeprom *eeprom, u8 *data)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

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

	if (eeprom->magic != 0xc3ec4951)
		return -EINVAL;

	mutex_lock(&chip->reg_lock);
	err = chip->info->ops->set_eeprom(chip, eeprom, data);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static const struct mv88e6xxx_ops mv88e6085_ops = {
	/* MV88E6XXX_FAMILY_6097 */
	.set_switch_mac = mv88e6xxx_g1_set_switch_mac,
	.phy_read = mv88e6xxx_phy_ppu_read,
	.phy_write = mv88e6xxx_phy_ppu_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.ppu_enable = mv88e6185_g1_ppu_enable,
	.ppu_disable = mv88e6185_g1_ppu_disable,
	.reset = mv88e6185_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6095_ops = {
	/* MV88E6XXX_FAMILY_6095 */
	.set_switch_mac = mv88e6xxx_g1_set_switch_mac,
	.phy_read = mv88e6xxx_phy_ppu_read,
	.phy_write = mv88e6xxx_phy_ppu_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_set_frame_mode = mv88e6085_port_set_frame_mode,
	.port_set_egress_floods = mv88e6185_port_set_egress_floods,
	.port_set_upstream_port = mv88e6095_port_set_upstream_port,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.ppu_enable = mv88e6185_g1_ppu_enable,
	.ppu_disable = mv88e6185_g1_ppu_disable,
	.reset = mv88e6185_g1_reset,
	.vtu_getnext = mv88e6185_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6097_ops = {
	/* MV88E6XXX_FAMILY_6097 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6095_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6123_ops = {
	/* MV88E6XXX_FAMILY_6165 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6165_phy_read,
	.phy_write = mv88e6165_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_set_frame_mode = mv88e6085_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6131_ops = {
	/* MV88E6XXX_FAMILY_6185 */
	.set_switch_mac = mv88e6xxx_g1_set_switch_mac,
	.phy_read = mv88e6xxx_phy_ppu_read,
	.phy_write = mv88e6xxx_phy_ppu_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6185_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_set_upstream_port = mv88e6095_port_set_upstream_port,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.ppu_enable = mv88e6185_g1_ppu_enable,
	.ppu_disable = mv88e6185_g1_ppu_disable,
	.reset = mv88e6185_g1_reset,
	.vtu_getnext = mv88e6185_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6141_ops = {
	/* MV88E6XXX_FAMILY_6341 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu =  mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6161_ops = {
	/* MV88E6XXX_FAMILY_6165 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6165_phy_read,
	.phy_write = mv88e6165_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6165_ops = {
	/* MV88E6XXX_FAMILY_6165 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6165_phy_read,
	.phy_write = mv88e6165_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6171_ops = {
	/* MV88E6XXX_FAMILY_6351 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6172_ops = {
	/* MV88E6XXX_FAMILY_6352 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom16,
	.set_eeprom = mv88e6xxx_g2_set_eeprom16,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6352_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6175_ops = {
	/* MV88E6XXX_FAMILY_6351 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6176_ops = {
	/* MV88E6XXX_FAMILY_6352 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom16,
	.set_eeprom = mv88e6xxx_g2_set_eeprom16,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6352_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6185_ops = {
	/* MV88E6XXX_FAMILY_6185 */
	.set_switch_mac = mv88e6xxx_g1_set_switch_mac,
	.phy_read = mv88e6xxx_phy_ppu_read,
	.phy_write = mv88e6xxx_phy_ppu_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_set_frame_mode = mv88e6085_port_set_frame_mode,
	.port_set_egress_floods = mv88e6185_port_set_egress_floods,
	.port_egress_rate_limiting = mv88e6095_port_egress_rate_limiting,
	.port_set_upstream_port = mv88e6095_port_set_upstream_port,
	.stats_snapshot = mv88e6xxx_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.ppu_enable = mv88e6185_g1_ppu_enable,
	.ppu_disable = mv88e6185_g1_ppu_disable,
	.reset = mv88e6185_g1_reset,
	.vtu_getnext = mv88e6185_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6190_ops = {
	/* MV88E6XXX_FAMILY_6390 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390_port_set_speed,
	.port_tag_remap = mv88e6390_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_pause_config = mv88e6390_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_set_histogram = mv88e6390_g1_stats_set_histogram,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6390_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6190x_ops = {
	/* MV88E6XXX_FAMILY_6390 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390x_port_set_speed,
	.port_tag_remap = mv88e6390_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_pause_config = mv88e6390_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_set_histogram = mv88e6390_g1_stats_set_histogram,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6390_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6191_ops = {
	/* MV88E6XXX_FAMILY_6390 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390_port_set_speed,
	.port_tag_remap = mv88e6390_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_pause_config = mv88e6390_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_set_histogram = mv88e6390_g1_stats_set_histogram,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6390_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6240_ops = {
	/* MV88E6XXX_FAMILY_6352 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom16,
	.set_eeprom = mv88e6xxx_g2_set_eeprom16,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6352_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6290_ops = {
	/* MV88E6XXX_FAMILY_6390 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390_port_set_speed,
	.port_tag_remap = mv88e6390_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_pause_config = mv88e6390_port_pause_config,
	.port_set_cmode = mv88e6390x_port_set_cmode,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_set_histogram = mv88e6390_g1_stats_set_histogram,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6390_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6320_ops = {
	/* MV88E6XXX_FAMILY_6320 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom16,
	.set_eeprom = mv88e6xxx_g2_set_eeprom16,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6320_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6185_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6321_ops = {
	/* MV88E6XXX_FAMILY_6321 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom16,
	.set_eeprom = mv88e6xxx_g2_set_eeprom16,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6320_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6185_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6185_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6341_ops = {
	/* MV88E6XXX_FAMILY_6341 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu =  mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6350_ops = {
	/* MV88E6XXX_FAMILY_6351 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6351_ops = {
	/* MV88E6XXX_FAMILY_6351 */
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6185_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6352_ops = {
	/* MV88E6XXX_FAMILY_6352 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom16,
	.set_eeprom = mv88e6xxx_g2_set_eeprom16,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6352_port_set_rgmii_delay,
	.port_set_speed = mv88e6352_port_set_speed,
	.port_tag_remap = mv88e6095_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6097_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6320_g1_stats_snapshot,
	.stats_get_sset_count = mv88e6095_stats_get_sset_count,
	.stats_get_strings = mv88e6095_stats_get_strings,
	.stats_get_stats = mv88e6095_stats_get_stats,
	.g1_set_cpu_port = mv88e6095_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6095_g1_set_egress_port,
	.watchdog_ops = &mv88e6097_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6095_g2_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6352_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6390_ops = {
	/* MV88E6XXX_FAMILY_6390 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390_port_set_speed,
	.port_tag_remap = mv88e6390_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6390_port_pause_config,
	.port_set_cmode = mv88e6390x_port_set_cmode,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_set_histogram = mv88e6390_g1_stats_set_histogram,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6390_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_ops mv88e6390x_ops = {
	/* MV88E6XXX_FAMILY_6390 */
	.get_eeprom = mv88e6xxx_g2_get_eeprom8,
	.set_eeprom = mv88e6xxx_g2_set_eeprom8,
	.set_switch_mac = mv88e6xxx_g2_set_switch_mac,
	.phy_read = mv88e6xxx_g2_smi_phy_read,
	.phy_write = mv88e6xxx_g2_smi_phy_write,
	.port_set_link = mv88e6xxx_port_set_link,
	.port_set_duplex = mv88e6xxx_port_set_duplex,
	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
	.port_set_speed = mv88e6390x_port_set_speed,
	.port_tag_remap = mv88e6390_port_tag_remap,
	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
	.port_set_ether_type = mv88e6351_port_set_ether_type,
	.port_jumbo_config = mv88e6165_port_jumbo_config,
	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
	.port_pause_config = mv88e6390_port_pause_config,
	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
	.stats_snapshot = mv88e6390_g1_stats_snapshot,
	.stats_set_histogram = mv88e6390_g1_stats_set_histogram,
	.stats_get_sset_count = mv88e6320_stats_get_sset_count,
	.stats_get_strings = mv88e6320_stats_get_strings,
	.stats_get_stats = mv88e6390_stats_get_stats,
	.g1_set_cpu_port = mv88e6390_g1_set_cpu_port,
	.g1_set_egress_port = mv88e6390_g1_set_egress_port,
	.watchdog_ops = &mv88e6390_watchdog_ops,
	.mgmt_rsvd2cpu = mv88e6390_g1_mgmt_rsvd2cpu,
	.reset = mv88e6352_g1_reset,
	.vtu_getnext = mv88e6390_g1_vtu_getnext,
	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
};

static const struct mv88e6xxx_info mv88e6xxx_table[] = {
	[MV88E6085] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6085,
		.family = MV88E6XXX_FAMILY_6097,
		.name = "Marvell 88E6085",
		.num_databases = 4096,
		.num_ports = 10,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 8,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6097,
		.ops = &mv88e6085_ops,
	},

	[MV88E6095] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6095,
		.family = MV88E6XXX_FAMILY_6095,
		.name = "Marvell 88E6095/88E6095F",
		.num_databases = 256,
		.num_ports = 11,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 8,
		.atu_move_port_mask = 0xf,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6095,
		.ops = &mv88e6095_ops,
	},

	[MV88E6097] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6097,
		.family = MV88E6XXX_FAMILY_6097,
		.name = "Marvell 88E6097/88E6097F",
		.num_databases = 4096,
		.num_ports = 11,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 8,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6097,
		.ops = &mv88e6097_ops,
	},

	[MV88E6123] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6123,
		.family = MV88E6XXX_FAMILY_6165,
		.name = "Marvell 88E6123",
		.num_databases = 4096,
		.num_ports = 3,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6165,
		.ops = &mv88e6123_ops,
	},

	[MV88E6131] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6131,
		.family = MV88E6XXX_FAMILY_6185,
		.name = "Marvell 88E6131",
		.num_databases = 256,
		.num_ports = 8,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6185,
		.ops = &mv88e6131_ops,
	},

	[MV88E6141] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6141,
		.family = MV88E6XXX_FAMILY_6341,
		.name = "Marvell 88E6341",
		.num_databases = 4096,
		.num_ports = 6,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 3750,
		.atu_move_port_mask = 0x1f,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6341,
		.ops = &mv88e6141_ops,
	},

	[MV88E6161] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6161,
		.family = MV88E6XXX_FAMILY_6165,
		.name = "Marvell 88E6161",
		.num_databases = 4096,
		.num_ports = 6,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6165,
		.ops = &mv88e6161_ops,
	},

	[MV88E6165] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6165,
		.family = MV88E6XXX_FAMILY_6165,
		.name = "Marvell 88E6165",
		.num_databases = 4096,
		.num_ports = 6,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6165,
		.ops = &mv88e6165_ops,
	},

	[MV88E6171] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6171,
		.family = MV88E6XXX_FAMILY_6351,
		.name = "Marvell 88E6171",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
		.ops = &mv88e6171_ops,
	},

	[MV88E6172] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6172,
		.family = MV88E6XXX_FAMILY_6352,
		.name = "Marvell 88E6172",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
		.ops = &mv88e6172_ops,
	},

	[MV88E6175] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6175,
		.family = MV88E6XXX_FAMILY_6351,
		.name = "Marvell 88E6175",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
		.ops = &mv88e6175_ops,
	},

	[MV88E6176] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6176,
		.family = MV88E6XXX_FAMILY_6352,
		.name = "Marvell 88E6176",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
		.ops = &mv88e6176_ops,
	},

	[MV88E6185] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6185,
		.family = MV88E6XXX_FAMILY_6185,
		.name = "Marvell 88E6185",
		.num_databases = 256,
		.num_ports = 10,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 8,
		.atu_move_port_mask = 0xf,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6185,
		.ops = &mv88e6185_ops,
	},

	[MV88E6190] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6190,
		.family = MV88E6XXX_FAMILY_6390,
		.name = "Marvell 88E6190",
		.num_databases = 4096,
		.num_ports = 11,	/* 10 + Z80 */
		.max_vid = 8191,
		.port_base_addr = 0x0,
		.global1_addr = 0x1b,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.age_time_coeff = 3750,
		.g1_irqs = 9,
		.pvt = true,
		.atu_move_port_mask = 0x1f,
		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
		.ops = &mv88e6190_ops,
	},

	[MV88E6190X] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6190X,
		.family = MV88E6XXX_FAMILY_6390,
		.name = "Marvell 88E6190X",
		.num_databases = 4096,
		.num_ports = 11,	/* 10 + Z80 */
		.max_vid = 8191,
		.port_base_addr = 0x0,
		.global1_addr = 0x1b,
		.age_time_coeff = 3750,
		.g1_irqs = 9,
		.atu_move_port_mask = 0x1f,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
		.ops = &mv88e6190x_ops,
	},

	[MV88E6191] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6191,
		.family = MV88E6XXX_FAMILY_6390,
		.name = "Marvell 88E6191",
		.num_databases = 4096,
		.num_ports = 11,	/* 10 + Z80 */
		.max_vid = 8191,
		.port_base_addr = 0x0,
		.global1_addr = 0x1b,
		.age_time_coeff = 3750,
		.g1_irqs = 9,
		.atu_move_port_mask = 0x1f,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
		.ops = &mv88e6191_ops,
	},

	[MV88E6240] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6240,
		.family = MV88E6XXX_FAMILY_6352,
		.name = "Marvell 88E6240",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
		.ops = &mv88e6240_ops,
	},

	[MV88E6290] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6290,
		.family = MV88E6XXX_FAMILY_6390,
		.name = "Marvell 88E6290",
		.num_databases = 4096,
		.num_ports = 11,	/* 10 + Z80 */
		.max_vid = 8191,
		.port_base_addr = 0x0,
		.global1_addr = 0x1b,
		.age_time_coeff = 3750,
		.g1_irqs = 9,
		.atu_move_port_mask = 0x1f,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
		.ops = &mv88e6290_ops,
	},

	[MV88E6320] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6320,
		.family = MV88E6XXX_FAMILY_6320,
		.name = "Marvell 88E6320",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 8,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6320,
		.ops = &mv88e6320_ops,
	},

	[MV88E6321] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6321,
		.family = MV88E6XXX_FAMILY_6320,
		.name = "Marvell 88E6321",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 8,
		.atu_move_port_mask = 0xf,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6320,
		.ops = &mv88e6321_ops,
	},

	[MV88E6341] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6341,
		.family = MV88E6XXX_FAMILY_6341,
		.name = "Marvell 88E6341",
		.num_databases = 4096,
		.num_ports = 6,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 3750,
		.atu_move_port_mask = 0x1f,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6341,
		.ops = &mv88e6341_ops,
	},

	[MV88E6350] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6350,
		.family = MV88E6XXX_FAMILY_6351,
		.name = "Marvell 88E6350",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
		.ops = &mv88e6350_ops,
	},

	[MV88E6351] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6351,
		.family = MV88E6XXX_FAMILY_6351,
		.name = "Marvell 88E6351",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6351,
		.ops = &mv88e6351_ops,
	},

	[MV88E6352] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6352,
		.family = MV88E6XXX_FAMILY_6352,
		.name = "Marvell 88E6352",
		.num_databases = 4096,
		.num_ports = 7,
		.max_vid = 4095,
		.port_base_addr = 0x10,
		.global1_addr = 0x1b,
		.age_time_coeff = 15000,
		.g1_irqs = 9,
		.atu_move_port_mask = 0xf,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_EDSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6352,
		.ops = &mv88e6352_ops,
	},
	[MV88E6390] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6390,
		.family = MV88E6XXX_FAMILY_6390,
		.name = "Marvell 88E6390",
		.num_databases = 4096,
		.num_ports = 11,	/* 10 + Z80 */
		.max_vid = 8191,
		.port_base_addr = 0x0,
		.global1_addr = 0x1b,
		.age_time_coeff = 3750,
		.g1_irqs = 9,
		.atu_move_port_mask = 0x1f,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
		.ops = &mv88e6390_ops,
	},
	[MV88E6390X] = {
		.prod_num = PORT_SWITCH_ID_PROD_NUM_6390X,
		.family = MV88E6XXX_FAMILY_6390,
		.name = "Marvell 88E6390X",
		.num_databases = 4096,
		.num_ports = 11,	/* 10 + Z80 */
		.max_vid = 8191,
		.port_base_addr = 0x0,
		.global1_addr = 0x1b,
		.age_time_coeff = 3750,
		.g1_irqs = 9,
		.atu_move_port_mask = 0x1f,
		.pvt = true,
		.tag_protocol = DSA_TAG_PROTO_DSA,
		.flags = MV88E6XXX_FLAGS_FAMILY_6390,
		.ops = &mv88e6390x_ops,
	},
};

static const struct mv88e6xxx_info *mv88e6xxx_lookup_info(unsigned int prod_num)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(mv88e6xxx_table); ++i)
		if (mv88e6xxx_table[i].prod_num == prod_num)
			return &mv88e6xxx_table[i];

	return NULL;
}

static int mv88e6xxx_detect(struct mv88e6xxx_chip *chip)
{
	const struct mv88e6xxx_info *info;
	unsigned int prod_num, rev;
	u16 id;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_read(chip, 0, PORT_SWITCH_ID, &id);
	mutex_unlock(&chip->reg_lock);
	if (err)
		return err;

	prod_num = (id & 0xfff0) >> 4;
	rev = id & 0x000f;

	info = mv88e6xxx_lookup_info(prod_num);
	if (!info)
		return -ENODEV;

	/* Update the compatible info with the probed one */
	chip->info = info;

	err = mv88e6xxx_g2_require(chip);
	if (err)
		return err;

	dev_info(chip->dev, "switch 0x%x detected: %s, revision %u\n",
		 chip->info->prod_num, chip->info->name, rev);

	return 0;
}

static struct mv88e6xxx_chip *mv88e6xxx_alloc_chip(struct device *dev)
{
	struct mv88e6xxx_chip *chip;

	chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
	if (!chip)
		return NULL;

	chip->dev = dev;

	mutex_init(&chip->reg_lock);
	INIT_LIST_HEAD(&chip->mdios);

	return chip;
}

static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
			      struct mii_bus *bus, int sw_addr)
{
	if (sw_addr == 0)
		chip->smi_ops = &mv88e6xxx_smi_single_chip_ops;
	else if (mv88e6xxx_has(chip, MV88E6XXX_FLAGS_MULTI_CHIP))
		chip->smi_ops = &mv88e6xxx_smi_multi_chip_ops;
	else
		return -EINVAL;

	chip->bus = bus;
	chip->sw_addr = sw_addr;

	return 0;
}

static enum dsa_tag_protocol mv88e6xxx_get_tag_protocol(struct dsa_switch *ds)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	return chip->info->tag_protocol;
}

static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
				       struct device *host_dev, int sw_addr,
				       void **priv)
{
	struct mv88e6xxx_chip *chip;
	struct mii_bus *bus;
	int err;

	bus = dsa_host_dev_to_mii_bus(host_dev);
	if (!bus)
		return NULL;

	chip = mv88e6xxx_alloc_chip(dsa_dev);
	if (!chip)
		return NULL;

	/* Legacy SMI probing will only support chips similar to 88E6085 */
	chip->info = &mv88e6xxx_table[MV88E6085];

	err = mv88e6xxx_smi_init(chip, bus, sw_addr);
	if (err)
		goto free;

	err = mv88e6xxx_detect(chip);
	if (err)
		goto free;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_switch_reset(chip);
	mutex_unlock(&chip->reg_lock);
	if (err)
		goto free;

	mv88e6xxx_phy_init(chip);

	err = mv88e6xxx_mdios_register(chip, NULL);
	if (err)
		goto free;

	*priv = chip;

	return chip->info->name;
free:
	devm_kfree(dsa_dev, chip);

	return NULL;
}

static int mv88e6xxx_port_mdb_prepare(struct dsa_switch *ds, int port,
				      const struct switchdev_obj_port_mdb *mdb,
				      struct switchdev_trans *trans)
{
	/* We don't need any dynamic resource from the kernel (yet),
	 * so skip the prepare phase.
	 */

	return 0;
}

static void mv88e6xxx_port_mdb_add(struct dsa_switch *ds, int port,
				   const struct switchdev_obj_port_mdb *mdb,
				   struct switchdev_trans *trans)
{
	struct mv88e6xxx_chip *chip = ds->priv;

	mutex_lock(&chip->reg_lock);
	if (mv88e6xxx_port_db_load_purge(chip, port, mdb->addr, mdb->vid,
					 GLOBAL_ATU_DATA_STATE_MC_STATIC))
		netdev_err(ds->ports[port].netdev, "failed to load multicast MAC address\n");
	mutex_unlock(&chip->reg_lock);
}

static int mv88e6xxx_port_mdb_del(struct dsa_switch *ds, int port,
				  const struct switchdev_obj_port_mdb *mdb)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_db_load_purge(chip, port, mdb->addr, mdb->vid,
					   GLOBAL_ATU_DATA_STATE_UNUSED);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static int mv88e6xxx_port_mdb_dump(struct dsa_switch *ds, int port,
				   struct switchdev_obj_port_mdb *mdb,
				   switchdev_obj_dump_cb_t *cb)
{
	struct mv88e6xxx_chip *chip = ds->priv;
	int err;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_port_db_dump(chip, port, &mdb->obj, cb);
	mutex_unlock(&chip->reg_lock);

	return err;
}

static const struct dsa_switch_ops mv88e6xxx_switch_ops = {
	.probe			= mv88e6xxx_drv_probe,
	.get_tag_protocol	= mv88e6xxx_get_tag_protocol,
	.setup			= mv88e6xxx_setup,
	.set_addr		= mv88e6xxx_set_addr,
	.adjust_link		= mv88e6xxx_adjust_link,
	.get_strings		= mv88e6xxx_get_strings,
	.get_ethtool_stats	= mv88e6xxx_get_ethtool_stats,
	.get_sset_count		= mv88e6xxx_get_sset_count,
	.set_eee		= mv88e6xxx_set_eee,
	.get_eee		= mv88e6xxx_get_eee,
	.get_eeprom_len		= mv88e6xxx_get_eeprom_len,
	.get_eeprom		= mv88e6xxx_get_eeprom,
	.set_eeprom		= mv88e6xxx_set_eeprom,
	.get_regs_len		= mv88e6xxx_get_regs_len,
	.get_regs		= mv88e6xxx_get_regs,
	.set_ageing_time	= mv88e6xxx_set_ageing_time,
	.port_bridge_join	= mv88e6xxx_port_bridge_join,
	.port_bridge_leave	= mv88e6xxx_port_bridge_leave,
	.port_stp_state_set	= mv88e6xxx_port_stp_state_set,
	.port_fast_age		= mv88e6xxx_port_fast_age,
	.port_vlan_filtering	= mv88e6xxx_port_vlan_filtering,
	.port_vlan_prepare	= mv88e6xxx_port_vlan_prepare,
	.port_vlan_add		= mv88e6xxx_port_vlan_add,
	.port_vlan_del		= mv88e6xxx_port_vlan_del,
	.port_vlan_dump		= mv88e6xxx_port_vlan_dump,
	.port_fdb_prepare       = mv88e6xxx_port_fdb_prepare,
	.port_fdb_add           = mv88e6xxx_port_fdb_add,
	.port_fdb_del           = mv88e6xxx_port_fdb_del,
	.port_fdb_dump          = mv88e6xxx_port_fdb_dump,
	.port_mdb_prepare       = mv88e6xxx_port_mdb_prepare,
	.port_mdb_add           = mv88e6xxx_port_mdb_add,
	.port_mdb_del           = mv88e6xxx_port_mdb_del,
	.port_mdb_dump          = mv88e6xxx_port_mdb_dump,
	.crosschip_bridge_join	= mv88e6xxx_crosschip_bridge_join,
	.crosschip_bridge_leave	= mv88e6xxx_crosschip_bridge_leave,
};

static struct dsa_switch_driver mv88e6xxx_switch_drv = {
	.ops			= &mv88e6xxx_switch_ops,
};

static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip)
{
	struct device *dev = chip->dev;
	struct dsa_switch *ds;

	ds = dsa_switch_alloc(dev, mv88e6xxx_num_ports(chip));
	if (!ds)
		return -ENOMEM;

	ds->priv = chip;
	ds->ops = &mv88e6xxx_switch_ops;
	ds->ageing_time_min = chip->info->age_time_coeff;
	ds->ageing_time_max = chip->info->age_time_coeff * U8_MAX;

	dev_set_drvdata(dev, ds);

	return dsa_register_switch(ds, dev);
}

static void mv88e6xxx_unregister_switch(struct mv88e6xxx_chip *chip)
{
	dsa_unregister_switch(chip->ds);
}

static int mv88e6xxx_probe(struct mdio_device *mdiodev)
{
	struct device *dev = &mdiodev->dev;
	struct device_node *np = dev->of_node;
	const struct mv88e6xxx_info *compat_info;
	struct mv88e6xxx_chip *chip;
	u32 eeprom_len;
	int err;

	compat_info = of_device_get_match_data(dev);
	if (!compat_info)
		return -EINVAL;

	chip = mv88e6xxx_alloc_chip(dev);
	if (!chip)
		return -ENOMEM;

	chip->info = compat_info;

	err = mv88e6xxx_smi_init(chip, mdiodev->bus, mdiodev->addr);
	if (err)
		return err;

	chip->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
	if (IS_ERR(chip->reset))
		return PTR_ERR(chip->reset);

	err = mv88e6xxx_detect(chip);
	if (err)
		return err;

	mv88e6xxx_phy_init(chip);

	if (chip->info->ops->get_eeprom &&
	    !of_property_read_u32(np, "eeprom-length", &eeprom_len))
		chip->eeprom_len = eeprom_len;

	mutex_lock(&chip->reg_lock);
	err = mv88e6xxx_switch_reset(chip);
	mutex_unlock(&chip->reg_lock);
	if (err)
		goto out;

	chip->irq = of_irq_get(np, 0);
	if (chip->irq == -EPROBE_DEFER) {
		err = chip->irq;
		goto out;
	}

	if (chip->irq > 0) {
		/* Has to be performed before the MDIO bus is created,
		 * because the PHYs will link there interrupts to these
		 * interrupt controllers
		 */
		mutex_lock(&chip->reg_lock);
		err = mv88e6xxx_g1_irq_setup(chip);
		mutex_unlock(&chip->reg_lock);

		if (err)
			goto out;

		if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_INT)) {
			err = mv88e6xxx_g2_irq_setup(chip);
			if (err)
				goto out_g1_irq;
		}
	}

	err = mv88e6xxx_mdios_register(chip, np);
	if (err)
		goto out_g2_irq;

	err = mv88e6xxx_register_switch(chip);
	if (err)
		goto out_mdio;

	return 0;

out_mdio:
	mv88e6xxx_mdios_unregister(chip);
out_g2_irq:
	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_INT) && chip->irq > 0)
		mv88e6xxx_g2_irq_free(chip);
out_g1_irq:
	if (chip->irq > 0) {
		mutex_lock(&chip->reg_lock);
		mv88e6xxx_g1_irq_free(chip);
		mutex_unlock(&chip->reg_lock);
	}
out:
	return err;
}

static void mv88e6xxx_remove(struct mdio_device *mdiodev)
{
	struct dsa_switch *ds = dev_get_drvdata(&mdiodev->dev);
	struct mv88e6xxx_chip *chip = ds->priv;

	mv88e6xxx_phy_destroy(chip);
	mv88e6xxx_unregister_switch(chip);
	mv88e6xxx_mdios_unregister(chip);

	if (chip->irq > 0) {
		if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_G2_INT))
			mv88e6xxx_g2_irq_free(chip);
		mv88e6xxx_g1_irq_free(chip);
	}
}

static const struct of_device_id mv88e6xxx_of_match[] = {
	{
		.compatible = "marvell,mv88e6085",
		.data = &mv88e6xxx_table[MV88E6085],
	},
	{
		.compatible = "marvell,mv88e6190",
		.data = &mv88e6xxx_table[MV88E6190],
	},
	{ /* sentinel */ },
};

MODULE_DEVICE_TABLE(of, mv88e6xxx_of_match);

static struct mdio_driver mv88e6xxx_driver = {
	.probe	= mv88e6xxx_probe,
	.remove = mv88e6xxx_remove,
	.mdiodrv.driver = {
		.name = "mv88e6085",
		.of_match_table = mv88e6xxx_of_match,
	},
};

static int __init mv88e6xxx_init(void)
{
	register_switch_driver(&mv88e6xxx_switch_drv);
	return mdio_driver_register(&mv88e6xxx_driver);
}
module_init(mv88e6xxx_init);

static void __exit mv88e6xxx_cleanup(void)
{
	mdio_driver_unregister(&mv88e6xxx_driver);
	unregister_switch_driver(&mv88e6xxx_switch_drv);
}
module_exit(mv88e6xxx_cleanup);

MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
MODULE_DESCRIPTION("Driver for Marvell 88E6XXX ethernet switch chips");
MODULE_LICENSE("GPL");