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/*
 * Marvell 88E6xxx Switch Global 2 Registers support (device address 0x1C)
 *
 * Copyright (c) 2008 Marvell Semiconductor
 *
 * 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.
 */

#ifndef _MV88E6XXX_GLOBAL2_H
#define _MV88E6XXX_GLOBAL2_H

#include "chip.h"

#define ADDR_GLOBAL2	0x1c

#define GLOBAL2_INT_SOURCE	0x00
#define GLOBAL2_INT_SOURCE_WATCHDOG	15
#define GLOBAL2_INT_MASK	0x01
#define GLOBAL2_MGMT_EN_2X	0x02
#define GLOBAL2_MGMT_EN_0X	0x03
#define GLOBAL2_FLOW_CONTROL	0x04
#define GLOBAL2_SWITCH_MGMT	0x05
#define GLOBAL2_SWITCH_MGMT_USE_DOUBLE_TAG_DATA	BIT(15)
#define GLOBAL2_SWITCH_MGMT_PREVENT_LOOPS	BIT(14)
#define GLOBAL2_SWITCH_MGMT_FLOW_CONTROL_MSG	BIT(13)
#define GLOBAL2_SWITCH_MGMT_FORCE_FLOW_CTRL_PRI	BIT(7)
#define GLOBAL2_SWITCH_MGMT_RSVD2CPU		BIT(3)
#define GLOBAL2_DEVICE_MAPPING	0x06
#define GLOBAL2_DEVICE_MAPPING_UPDATE		BIT(15)
#define GLOBAL2_DEVICE_MAPPING_TARGET_SHIFT	8
#define GLOBAL2_DEVICE_MAPPING_PORT_MASK	0x0f
#define GLOBAL2_TRUNK_MASK	0x07
#define GLOBAL2_TRUNK_MASK_UPDATE		BIT(15)
#define GLOBAL2_TRUNK_MASK_NUM_SHIFT		12
#define GLOBAL2_TRUNK_MASK_HASK			BIT(11)
#define GLOBAL2_TRUNK_MAPPING	0x08
#define GLOBAL2_TRUNK_MAPPING_UPDATE		BIT(15)
#define GLOBAL2_TRUNK_MAPPING_ID_SHIFT		11
#define GLOBAL2_IRL_CMD		0x09
#define GLOBAL2_IRL_CMD_BUSY	BIT(15)
#define GLOBAL2_IRL_CMD_OP_INIT_ALL	((0x001 << 12) | GLOBAL2_IRL_CMD_BUSY)
#define GLOBAL2_IRL_CMD_OP_INIT_SEL	((0x010 << 12) | GLOBAL2_IRL_CMD_BUSY)
#define GLOBAL2_IRL_CMD_OP_WRITE_SEL	((0x011 << 12) | GLOBAL2_IRL_CMD_BUSY)
#define GLOBAL2_IRL_CMD_OP_READ_SEL	((0x100 << 12) | GLOBAL2_IRL_CMD_BUSY)
#define GLOBAL2_IRL_DATA	0x0a
#define GLOBAL2_PVT_ADDR	0x0b
#define GLOBAL2_PVT_ADDR_BUSY	BIT(15)
#define GLOBAL2_PVT_ADDR_OP_INIT_ONES	((0x01 << 12) | GLOBAL2_PVT_ADDR_BUSY)
#define GLOBAL2_PVT_ADDR_OP_WRITE_PVLAN	((0x03 << 12) | GLOBAL2_PVT_ADDR_BUSY)
#define GLOBAL2_PVT_ADDR_OP_READ	((0x04 << 12) | GLOBAL2_PVT_ADDR_BUSY)
#define GLOBAL2_PVT_DATA	0x0c
#define GLOBAL2_SWITCH_MAC	0x0d
#define GLOBAL2_ATU_STATS	0x0e
#define GLOBAL2_PRIO_OVERRIDE	0x0f
#define GLOBAL2_PRIO_OVERRIDE_FORCE_SNOOP	BIT(7)
#define GLOBAL2_PRIO_OVERRIDE_SNOOP_SHIFT	4
#define GLOBAL2_PRIO_OVERRIDE_FORCE_ARP		BIT(3)
#define GLOBAL2_PRIO_OVERRIDE_ARP_SHIFT		0
#define GLOBAL2_EEPROM_CMD		0x14
#define GLOBAL2_EEPROM_CMD_BUSY		BIT(15)
#define GLOBAL2_EEPROM_CMD_OP_WRITE	((0x3 << 12) | GLOBAL2_EEPROM_CMD_BUSY)
#define GLOBAL2_EEPROM_CMD_OP_READ	((0x4 << 12) | GLOBAL2_EEPROM_CMD_BUSY)
#define GLOBAL2_EEPROM_CMD_OP_LOAD	((0x6 << 12) | GLOBAL2_EEPROM_CMD_BUSY)
#define GLOBAL2_EEPROM_CMD_RUNNING	BIT(11)
#define GLOBAL2_EEPROM_CMD_WRITE_EN	BIT(10)
#define GLOBAL2_EEPROM_CMD_ADDR_MASK	0xff
#define GLOBAL2_EEPROM_DATA	0x15
#define GLOBAL2_EEPROM_ADDR	0x15 /* 6390, 6341 */
#define GLOBAL2_PTP_AVB_OP	0x16
#define GLOBAL2_PTP_AVB_DATA	0x17
#define GLOBAL2_SMI_PHY_CMD			0x18
#define GLOBAL2_SMI_PHY_CMD_BUSY		BIT(15)
#define GLOBAL2_SMI_PHY_CMD_EXTERNAL		BIT(13)
#define GLOBAL2_SMI_PHY_CMD_MODE_22		BIT(12)
#define GLOBAL2_SMI_PHY_CMD_OP_22_WRITE_DATA	((0x1 << 10) | \
						 GLOBAL2_SMI_PHY_CMD_MODE_22 | \
						 GLOBAL2_SMI_PHY_CMD_BUSY)
#define GLOBAL2_SMI_PHY_CMD_OP_22_READ_DATA	((0x2 << 10) | \
						 GLOBAL2_SMI_PHY_CMD_MODE_22 | \
						 GLOBAL2_SMI_PHY_CMD_BUSY)
#define GLOBAL2_SMI_PHY_CMD_OP_45_WRITE_ADDR	((0x0 << 10) | \
						 GLOBAL2_SMI_PHY_CMD_BUSY)
#define GLOBAL2_SMI_PHY_CMD_OP_45_WRITE_DATA	((0x1 << 10) | \
						 GLOBAL2_SMI_PHY_CMD_BUSY)
#define GLOBAL2_SMI_PHY_CMD_OP_45_READ_DATA	((0x3 << 10) | \
						 GLOBAL2_SMI_PHY_CMD_BUSY)

#define GLOBAL2_SMI_PHY_DATA			0x19
#define GLOBAL2_SCRATCH_MISC	0x1a
#define GLOBAL2_SCRATCH_BUSY		BIT(15)
#define GLOBAL2_SCRATCH_REGISTER_SHIFT	8
#define GLOBAL2_SCRATCH_VALUE_MASK	0xff
#define GLOBAL2_WDOG_CONTROL	0x1b
#define GLOBAL2_WDOG_CONTROL_EGRESS_EVENT	BIT(7)
#define GLOBAL2_WDOG_CONTROL_RMU_TIMEOUT	BIT(6)
#define GLOBAL2_WDOG_CONTROL_QC_ENABLE		BIT(5)
#define GLOBAL2_WDOG_CONTROL_EGRESS_HISTORY	BIT(4)
#define GLOBAL2_WDOG_CONTROL_EGRESS_ENABLE	BIT(3)
#define GLOBAL2_WDOG_CONTROL_FORCE_IRQ		BIT(2)
#define GLOBAL2_WDOG_CONTROL_HISTORY		BIT(1)
#define GLOBAL2_WDOG_CONTROL_SWRESET		BIT(0)
#define GLOBAL2_WDOG_UPDATE			BIT(15)
#define GLOBAL2_WDOG_INT_SOURCE			(0x00 << 8)
#define GLOBAL2_WDOG_INT_STATUS			(0x10 << 8)
#define GLOBAL2_WDOG_INT_ENABLE			(0x11 << 8)
#define GLOBAL2_WDOG_EVENT			(0x12 << 8)
#define GLOBAL2_WDOG_HISTORY			(0x13 << 8)
#define GLOBAL2_WDOG_DATA_MASK			0xff
#define GLOBAL2_WDOG_CUT_THROUGH		BIT(3)
#define GLOBAL2_WDOG_QUEUE_CONTROLLER		BIT(2)
#define GLOBAL2_WDOG_EGRESS			BIT(1)
#define GLOBAL2_WDOG_FORCE_IRQ			BIT(0)
#define GLOBAL2_QOS_WEIGHT	0x1c
#define GLOBAL2_MISC		0x1d
#define GLOBAL2_MISC_5_BIT_PORT	BIT(14)

#ifdef CONFIG_NET_DSA_MV88E6XXX_GLOBAL2

static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip)
{
	return 0;
}

int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip,
			      struct mii_bus *bus,
			      int addr, int reg, u16 *val);
int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip,
			       struct mii_bus *bus,
			       int addr, int reg, u16 val);
int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip, u8 *addr);

int mv88e6xxx_g2_get_eeprom8(struct mv88e6xxx_chip *chip,
			     struct ethtool_eeprom *eeprom, u8 *data);
int mv88e6xxx_g2_set_eeprom8(struct mv88e6xxx_chip *chip,
			     struct ethtool_eeprom *eeprom, u8 *data);

int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip,
			      struct ethtool_eeprom *eeprom, u8 *data);
int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip,
			      struct ethtool_eeprom *eeprom, u8 *data);

int mv88e6xxx_g2_pvt_write(struct mv88e6xxx_chip *chip, int src_dev,
			   int src_port, u16 data);
int mv88e6xxx_g2_misc_4_bit_port(struct mv88e6xxx_chip *chip);

int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip);
int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip);
void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip);
int mv88e6095_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);

extern const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops;
extern const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops;

#else /* !CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */

static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip)
{
	if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_GLOBAL2)) {
		dev_err(chip->dev, "this chip requires CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 enabled\n");
		return -EOPNOTSUPP;
	}

	return 0;
}

static inline int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip,
					    struct mii_bus *bus,
					    int addr, int reg, u16 *val)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip,
					     struct mii_bus *bus,
					     int addr, int reg, u16 val)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip,
					      u8 *addr)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_get_eeprom8(struct mv88e6xxx_chip *chip,
					   struct ethtool_eeprom *eeprom,
					   u8 *data)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_set_eeprom8(struct mv88e6xxx_chip *chip,
					   struct ethtool_eeprom *eeprom,
					   u8 *data)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip,
					    struct ethtool_eeprom *eeprom,
					    u8 *data)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip,
					    struct ethtool_eeprom *eeprom,
					    u8 *data)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_pvt_write(struct mv88e6xxx_chip *chip,
					 int src_dev, int src_port, u16 data)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_misc_4_bit_port(struct mv88e6xxx_chip *chip)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
{
	return -EOPNOTSUPP;
}

static inline int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip)
{
	return -EOPNOTSUPP;
}

static inline void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip)
{
}

static inline int mv88e6095_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
{
	return -EOPNOTSUPP;
}

static const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops = {};
static const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops = {};

#endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */

#endif /* _MV88E6XXX_GLOBAL2_H */