xref: /openbmc/linux/drivers/net/dsa/mv88e6xxx/serdes.h (revision f6791424)

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Marvell 88E6xxx SERDES manipulation, via SMI bus
 *
 * Copyright (c) 2008 Marvell Semiconductor
 *
 * Copyright (c) 2016 Andrew Lunn <andrew@lunn.ch>
 */

#ifndef _MV88E6XXX_SERDES_H
#define _MV88E6XXX_SERDES_H

#include "chip.h"

struct phylink_link_state;

#define MV88E6352_ADDR_SERDES		0x0f
#define MV88E6352_SERDES_PAGE_FIBER	0x01
#define MV88E6352_SERDES_IRQ		0x0b
#define MV88E6352_SERDES_INT_ENABLE	0x12
#define MV88E6352_SERDES_INT_SPEED_CHANGE	BIT(14)
#define MV88E6352_SERDES_INT_DUPLEX_CHANGE	BIT(13)
#define MV88E6352_SERDES_INT_PAGE_RX		BIT(12)
#define MV88E6352_SERDES_INT_AN_COMPLETE	BIT(11)
#define MV88E6352_SERDES_INT_LINK_CHANGE	BIT(10)
#define MV88E6352_SERDES_INT_SYMBOL_ERROR	BIT(9)
#define MV88E6352_SERDES_INT_FALSE_CARRIER	BIT(8)
#define MV88E6352_SERDES_INT_FIFO_OVER_UNDER	BIT(7)
#define MV88E6352_SERDES_INT_FIBRE_ENERGY	BIT(4)
#define MV88E6352_SERDES_INT_STATUS	0x13

#define MV88E6352_SERDES_SPEC_CTRL2	0x1a
#define MV88E6352_SERDES_OUT_AMP_MASK		0x0007

#define MV88E6341_PORT5_LANE		0x15

#define MV88E6390_PORT9_LANE0		0x09
#define MV88E6390_PORT9_LANE1		0x12
#define MV88E6390_PORT9_LANE2		0x13
#define MV88E6390_PORT9_LANE3		0x14
#define MV88E6390_PORT10_LANE0		0x0a
#define MV88E6390_PORT10_LANE1		0x15
#define MV88E6390_PORT10_LANE2		0x16
#define MV88E6390_PORT10_LANE3		0x17

/* 10GBASE-R and 10GBASE-X4/X2 */
#define MV88E6390_10G_CTRL1		(0x1000 + MDIO_CTRL1)
#define MV88E6390_10G_STAT1		(0x1000 + MDIO_STAT1)
#define MV88E6390_10G_INT_ENABLE	0x9001
#define MV88E6390_10G_INT_LINK_DOWN	BIT(3)
#define MV88E6390_10G_INT_LINK_UP	BIT(2)
#define MV88E6390_10G_INT_STATUS	0x9003
#define MV88E6393X_10G_INT_ENABLE	0x9000
#define MV88E6393X_10G_INT_LINK_CHANGE	BIT(2)
#define MV88E6393X_10G_INT_STATUS	0x9001

/* USXGMII */
#define MV88E6390_USXGMII_LP_STATUS       0xf0a2
#define MV88E6390_USXGMII_PHY_STATUS      0xf0a6

/* 1000BASE-X and SGMII */
#define MV88E6390_SGMII_BMCR		(0x2000 + MII_BMCR)
#define MV88E6390_SGMII_BMSR		(0x2000 + MII_BMSR)
#define MV88E6390_SGMII_ADVERTISE	(0x2000 + MII_ADVERTISE)
#define MV88E6390_SGMII_LPA		(0x2000 + MII_LPA)
#define MV88E6390_SGMII_INT_ENABLE	0xa001
#define MV88E6390_SGMII_INT_SPEED_CHANGE	BIT(14)
#define MV88E6390_SGMII_INT_DUPLEX_CHANGE	BIT(13)
#define MV88E6390_SGMII_INT_PAGE_RX		BIT(12)
#define MV88E6390_SGMII_INT_AN_COMPLETE		BIT(11)
#define MV88E6390_SGMII_INT_LINK_DOWN		BIT(10)
#define MV88E6390_SGMII_INT_LINK_UP		BIT(9)
#define MV88E6390_SGMII_INT_SYMBOL_ERROR	BIT(8)
#define MV88E6390_SGMII_INT_FALSE_CARRIER	BIT(7)
#define MV88E6390_SGMII_INT_STATUS	0xa002
#define MV88E6390_SGMII_PHY_STATUS	0xa003
#define MV88E6390_SGMII_PHY_STATUS_SPEED_MASK	GENMASK(15, 14)
#define MV88E6390_SGMII_PHY_STATUS_SPEED_1000	0x8000
#define MV88E6390_SGMII_PHY_STATUS_SPEED_100	0x4000
#define MV88E6390_SGMII_PHY_STATUS_SPEED_10	0x0000
#define MV88E6390_SGMII_PHY_STATUS_DUPLEX_FULL	BIT(13)
#define MV88E6390_SGMII_PHY_STATUS_SPD_DPL_VALID BIT(11)
#define MV88E6390_SGMII_PHY_STATUS_LINK		BIT(10)
#define MV88E6390_SGMII_PHY_STATUS_TX_PAUSE	BIT(3)
#define MV88E6390_SGMII_PHY_STATUS_RX_PAUSE	BIT(2)

/* Packet generator pad packet checker */
#define MV88E6390_PG_CONTROL		0xf010
#define MV88E6390_PG_CONTROL_ENABLE_PC		BIT(0)

#define MV88E6393X_PORT0_LANE			0x00
#define MV88E6393X_PORT9_LANE			0x09
#define MV88E6393X_PORT10_LANE			0x0a

/* Port Operational Configuration */
#define MV88E6393X_SERDES_POC			0xf002
#define MV88E6393X_SERDES_POC_PCS_1000BASEX	0x0000
#define MV88E6393X_SERDES_POC_PCS_2500BASEX	0x0001
#define MV88E6393X_SERDES_POC_PCS_SGMII_PHY	0x0002
#define MV88E6393X_SERDES_POC_PCS_SGMII_MAC	0x0003
#define MV88E6393X_SERDES_POC_PCS_5GBASER	0x0004
#define MV88E6393X_SERDES_POC_PCS_10GBASER	0x0005
#define MV88E6393X_SERDES_POC_PCS_USXGMII_PHY	0x0006
#define MV88E6393X_SERDES_POC_PCS_USXGMII_MAC	0x0007
#define MV88E6393X_SERDES_POC_PCS_MASK		0x0007
#define MV88E6393X_SERDES_POC_RESET		BIT(15)
#define MV88E6393X_SERDES_POC_PDOWN		BIT(5)
#define MV88E6393X_SERDES_POC_AN		BIT(3)
#define MV88E6393X_SERDES_CTRL1			0xf003
#define MV88E6393X_SERDES_CTRL1_TX_PDOWN	BIT(9)
#define MV88E6393X_SERDES_CTRL1_RX_PDOWN	BIT(8)

#define MV88E6393X_ERRATA_4_8_REG		0xF074
#define MV88E6393X_ERRATA_4_8_BIT		BIT(14)

int mv88e6xxx_pcs_decode_state(struct device *dev, u16 bmsr, u16 lpa,
			       u16 status, struct phylink_link_state *state);

int mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
int mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
int mv88e6390x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
int mv88e6393x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
unsigned int mv88e6352_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
					  int port);
unsigned int mv88e6390_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
					  int port);
int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
				 int port, uint8_t *data);
size_t mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
				  uint64_t *data);
int mv88e6390_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip,
				 int port, uint8_t *data);
size_t mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
				  uint64_t *data);

int mv88e6352_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port);
void mv88e6352_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p);
int mv88e6390_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port);
void mv88e6390_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p);

int mv88e6352_serdes_set_tx_amplitude(struct mv88e6xxx_chip *chip, int port,
				      int val);

/* Return the (first) SERDES lane address a port is using, -errno otherwise. */
static inline int mv88e6xxx_serdes_get_lane(struct mv88e6xxx_chip *chip,
					    int port)
{
	if (!chip->info->ops->serdes_get_lane)
		return -EOPNOTSUPP;

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

static inline unsigned int
mv88e6xxx_serdes_irq_mapping(struct mv88e6xxx_chip *chip, int port)
{
	if (!chip->info->ops->serdes_irq_mapping)
		return 0;

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

extern const struct mv88e6xxx_pcs_ops mv88e6185_pcs_ops;
extern const struct mv88e6xxx_pcs_ops mv88e6352_pcs_ops;
extern const struct mv88e6xxx_pcs_ops mv88e6390_pcs_ops;
extern const struct mv88e6xxx_pcs_ops mv88e6393x_pcs_ops;

#endif