linux_kernel/drivers/net/dsa/mv88e6xxx.h

/*
 * net/dsa/mv88e6xxx.h - Marvell 88e6xxx switch chip support
 * Copyright (c) 2008 Marvell Semiconductor
 *
 * 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_H
#define __MV88E6XXX_H

#define SMI_CMD			0x00
#define SMI_CMD_BUSY		BIT(15)
#define SMI_CMD_CLAUSE_22	BIT(12)
#define SMI_CMD_OP_22_WRITE	((1 << 10) | SMI_CMD_BUSY | SMI_CMD_CLAUSE_22)
#define SMI_CMD_OP_22_READ	((2 << 10) | SMI_CMD_BUSY | SMI_CMD_CLAUSE_22)
#define SMI_CMD_OP_45_WRITE_ADDR	((0 << 10) | SMI_CMD_BUSY)
#define SMI_CMD_OP_45_WRITE_DATA	((1 << 10) | SMI_CMD_BUSY)
#define SMI_CMD_OP_45_READ_DATA		((2 << 10) | SMI_CMD_BUSY)
#define SMI_CMD_OP_45_READ_DATA_INC	((3 << 10) | SMI_CMD_BUSY)
#define SMI_DATA		0x01

#define REG_PORT(p)		(0x10 + (p))
#define PORT_STATUS		0x00
#define PORT_STATUS_PAUSE_EN	BIT(15)
#define PORT_STATUS_MY_PAUSE	BIT(14)
#define PORT_STATUS_HD_FLOW	BIT(13)
#define PORT_STATUS_PHY_DETECT	BIT(12)
#define PORT_STATUS_LINK	BIT(11)
#define PORT_STATUS_DUPLEX	BIT(10)
#define PORT_STATUS_SPEED_MASK	0x0300
#define PORT_STATUS_SPEED_10	0x0000
#define PORT_STATUS_SPEED_100	0x0100
#define PORT_STATUS_SPEED_1000	0x0200
#define PORT_STATUS_EEE		BIT(6) /* 6352 */
#define PORT_STATUS_AM_DIS	BIT(6) /* 6165 */
#define PORT_STATUS_MGMII	BIT(6) /* 6185 */
#define PORT_STATUS_TX_PAUSED	BIT(5)
#define PORT_STATUS_FLOW_CTRL	BIT(4)
#define PORT_PCS_CTRL		0x01
#define PORT_SWITCH_ID		0x03
#define PORT_SWITCH_ID_6085	0x04a0
#define PORT_SWITCH_ID_6095	0x0950
#define PORT_SWITCH_ID_6123	0x1210
#define PORT_SWITCH_ID_6123_A1	0x1212
#define PORT_SWITCH_ID_6123_A2	0x1213
#define PORT_SWITCH_ID_6131	0x1060
#define PORT_SWITCH_ID_6131_B2	0x1066
#define PORT_SWITCH_ID_6152	0x1a40
#define PORT_SWITCH_ID_6155	0x1a50
#define PORT_SWITCH_ID_6161	0x1610
#define PORT_SWITCH_ID_6161_A1	0x1612
#define PORT_SWITCH_ID_6161_A2	0x1613
#define PORT_SWITCH_ID_6165	0x1650
#define PORT_SWITCH_ID_6165_A1	0x1652
#define PORT_SWITCH_ID_6165_A2	0x1653
#define PORT_SWITCH_ID_6171	0x1710
#define PORT_SWITCH_ID_6172	0x1720
#define PORT_SWITCH_ID_6176	0x1760
#define PORT_SWITCH_ID_6182	0x1a60
#define PORT_SWITCH_ID_6185	0x1a70
#define PORT_SWITCH_ID_6352	0x3520
#define PORT_SWITCH_ID_6352_A0	0x3521
#define PORT_SWITCH_ID_6352_A1	0x3522
#define PORT_CONTROL		0x04
#define PORT_CONTROL_STATE_MASK		0x03
#define PORT_CONTROL_STATE_DISABLED	0x00
#define PORT_CONTROL_STATE_BLOCKING	0x01
#define PORT_CONTROL_STATE_LEARNING	0x02
#define PORT_CONTROL_STATE_FORWARDING	0x03
#define PORT_CONTROL_1		0x05
#define PORT_BASE_VLAN		0x06
#define PORT_DEFAULT_VLAN	0x07
#define PORT_CONTROL_2		0x08
#define PORT_RATE_CONTROL	0x09
#define PORT_RATE_CONTROL_2	0x0a
#define PORT_ASSOC_VECTOR	0x0b
#define PORT_IN_DISCARD_LO	0x10
#define PORT_IN_DISCARD_HI	0x11
#define PORT_IN_FILTERED	0x12
#define PORT_OUT_FILTERED	0x13
#define PORT_TAG_REGMAP_0123	0x19
#define PORT_TAG_REGMAP_4567	0x1a

#define REG_GLOBAL		0x1b
#define GLOBAL_STATUS		0x00
#define GLOBAL_STATUS_PPU_STATE BIT(15) /* 6351 and 6171 */
/* Two bits for 6165, 6185 etc */
#define GLOBAL_STATUS_PPU_MASK		(0x3 << 14)
#define GLOBAL_STATUS_PPU_DISABLED_RST	(0x0 << 14)
#define GLOBAL_STATUS_PPU_INITIALIZING	(0x1 << 14)
#define GLOBAL_STATUS_PPU_DISABLED	(0x2 << 14)
#define GLOBAL_STATUS_PPU_POLLING	(0x3 << 14)
#define GLOBAL_MAC_01		0x01
#define GLOBAL_MAC_23		0x02
#define GLOBAL_MAC_45		0x03
#define GLOBAL_CONTROL		0x04
#define GLOBAL_CONTROL_SW_RESET		BIT(15)
#define GLOBAL_CONTROL_PPU_ENABLE	BIT(14)
#define GLOBAL_CONTROL_DISCARD_EXCESS	BIT(13) /* 6352 */
#define GLOBAL_CONTROL_SCHED_PRIO	BIT(11) /* 6152 */
#define GLOBAL_CONTROL_MAX_FRAME_1632	BIT(10) /* 6152 */
#define GLOBAL_CONTROL_RELOAD_EEPROM	BIT(9)  /* 6152 */
#define GLOBAL_CONTROL_DEVICE_EN	BIT(7)
#define GLOBAL_CONTROL_STATS_DONE_EN	BIT(6)
#define GLOBAL_CONTROL_VTU_PROBLEM_EN	BIT(5)
#define GLOBAL_CONTROL_VTU_DONE_EN	BIT(4)
#define GLOBAL_CONTROL_ATU_PROBLEM_EN	BIT(3)
#define GLOBAL_CONTROL_ATU_DONE_EN	BIT(2)
#define GLOBAL_CONTROL_TCAM_EN		BIT(1)
#define GLOBAL_CONTROL_EEPROM_DONE_EN	BIT(0)
#define GLOBAL_VTU_OP		0x05
#define GLOBAL_VTU_VID		0x06
#define GLOBAL_VTU_DATA_0_3	0x07
#define GLOBAL_VTU_DATA_4_7	0x08
#define GLOBAL_VTU_DATA_8_11	0x09
#define GLOBAL_ATU_CONTROL	0x0a
#define GLOBAL_ATU_OP		0x0b
#define GLOBAL_ATU_OP_BUSY	BIT(15)
#define GLOBAL_ATU_OP_NOP		(0 << 12)
#define GLOBAL_ATU_OP_FLUSH_ALL		((1 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_NON_STATIC	((2 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_LOAD_DB		((3 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_GET_NEXT_DB	((4 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_DB		((5 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_FLUSH_NON_STATIC_DB ((6 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_OP_GET_CLR_VIOLATION	  ((7 << 12) | GLOBAL_ATU_OP_BUSY)
#define GLOBAL_ATU_DATA		0x0c
#define GLOBAL_ATU_DATA_STATE_MASK		0x0f
#define GLOBAL_ATU_DATA_STATE_UNUSED		0x00
#define GLOBAL_ATU_DATA_STATE_UC_MGMT		0x0d
#define GLOBAL_ATU_DATA_STATE_UC_STATIC		0x0e
#define GLOBAL_ATU_DATA_STATE_UC_PRIO_OVER	0x0f
#define GLOBAL_ATU_DATA_STATE_MC_NONE_RATE	0x05
#define GLOBAL_ATU_DATA_STATE_MC_STATIC		0x07
#define GLOBAL_ATU_DATA_STATE_MC_MGMT		0x0e
#define GLOBAL_ATU_DATA_STATE_MC_PRIO_OVER	0x0f
#define GLOBAL_ATU_MAC_01	0x0d
#define GLOBAL_ATU_MAC_23	0x0e
#define GLOBAL_ATU_MAC_45	0x0f
#define GLOBAL_IP_PRI_0		0x10
#define GLOBAL_IP_PRI_1		0x11
#define GLOBAL_IP_PRI_2		0x12
#define GLOBAL_IP_PRI_3		0x13
#define GLOBAL_IP_PRI_4		0x14
#define GLOBAL_IP_PRI_5		0x15
#define GLOBAL_IP_PRI_6		0x16
#define GLOBAL_IP_PRI_7		0x17
#define GLOBAL_IEEE_PRI		0x18
#define GLOBAL_CORE_TAG_TYPE	0x19
#define GLOBAL_MONITOR_CONTROL	0x1a
#define GLOBAL_CONTROL_2	0x1c
#define GLOBAL_STATS_OP		0x1d
#define GLOBAL_STATS_OP_BUSY	BIT(15)
#define GLOBAL_STATS_OP_NOP		(0 << 12)
#define GLOBAL_STATS_OP_FLUSH_ALL	((1 << 12) | GLOBAL_STATS_OP_BUSY)
#define GLOBAL_STATS_OP_FLUSH_PORT	((2 << 12) | GLOBAL_STATS_OP_BUSY)
#define GLOBAL_STATS_OP_READ_CAPTURED	((4 << 12) | GLOBAL_STATS_OP_BUSY)
#define GLOBAL_STATS_OP_CAPTURE_PORT	((5 << 12) | GLOBAL_STATS_OP_BUSY)
#define GLOBAL_STATS_OP_HIST_RX		((1 << 10) | GLOBAL_STATS_OP_BUSY)
#define GLOBAL_STATS_OP_HIST_TX		((2 << 10) | GLOBAL_STATS_OP_BUSY)
#define GLOBAL_STATS_OP_HIST_RX_TX	((3 << 10) | GLOBAL_STATS_OP_BUSY)
#define GLOBAL_STATS_COUNTER_32	0x1e
#define GLOBAL_STATS_COUNTER_01	0x1f

#define REG_GLOBAL2		0x1c
#define GLOBAL2_INT_SOURCE	0x00
#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_DEVICE_MAPPING	0x06
#define GLOBAL2_TRUNK_MASK	0x07
#define GLOBAL2_TRUNK_MAPPING	0x08
#define GLOBAL2_INGRESS_OP	0x09
#define GLOBAL2_INGRESS_DATA	0x0a
#define GLOBAL2_PVT_ADDR	0x0b
#define GLOBAL2_PVT_DATA	0x0c
#define GLOBAL2_SWITCH_MAC	0x0d
#define GLOBAL2_SWITCH_MAC_BUSY BIT(15)
#define GLOBAL2_ATU_STATS	0x0e
#define GLOBAL2_PRIO_OVERRIDE	0x0f
#define GLOBAL2_EEPROM_OP	0x14
#define GLOBAL2_EEPROM_OP_BUSY	BIT(15)
#define GLOBAL2_EEPROM_OP_LOAD	BIT(11)
#define GLOBAL2_EEPROM_DATA	0x15
#define GLOBAL2_PTP_AVB_OP	0x16
#define GLOBAL2_PTP_AVB_DATA	0x17
#define GLOBAL2_SMI_OP		0x18
#define GLOBAL2_SMI_OP_BUSY		BIT(15)
#define GLOBAL2_SMI_OP_CLAUSE_22	BIT(12)
#define GLOBAL2_SMI_OP_22_WRITE		((1 << 10) | GLOBAL2_SMI_OP_BUSY | \
					 GLOBAL2_SMI_OP_CLAUSE_22)
#define GLOBAL2_SMI_OP_22_READ		((2 << 10) | GLOBAL2_SMI_OP_BUSY | \
					 GLOBAL2_SMI_OP_CLAUSE_22)
#define GLOBAL2_SMI_OP_45_WRITE_ADDR	((0 << 10) | GLOBAL2_SMI_OP_BUSY)
#define GLOBAL2_SMI_OP_45_WRITE_DATA	((1 << 10) | GLOBAL2_SMI_OP_BUSY)
#define GLOBAL2_SMI_OP_45_READ_DATA	((2 << 10) | GLOBAL2_SMI_OP_BUSY)
#define GLOBAL2_SMI_DATA	0x19
#define GLOBAL2_SCRATCH_MISC	0x1a
#define GLOBAL2_WDOG_CONTROL	0x1b
#define GLOBAL2_QOS_WEIGHT	0x1c
#define GLOBAL2_MISC		0x1d

struct mv88e6xxx_priv_state {
	/* When using multi-chip addressing, this mutex protects
	 * access to the indirect access registers.  (In single-chip
	 * mode, this mutex is effectively useless.)
	 */
	struct mutex	smi_mutex;

#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
	/* Handles automatic disabling and re-enabling of the PHY
	 * polling unit.
	 */
	struct mutex		ppu_mutex;
	int			ppu_disabled;
	struct work_struct	ppu_work;
	struct timer_list	ppu_timer;
#endif

	/* This mutex serialises access to the statistics unit.
	 * Hold this mutex over snapshot + dump sequences.
	 */
	struct mutex	stats_mutex;

	/* This mutex serializes phy access for chips with
	 * indirect phy addressing. It is unused for chips
	 * with direct phy access.
	 */
	struct mutex	phy_mutex;

	/* This mutex serializes eeprom access for chips with
	 * eeprom support.
	 */
	struct mutex eeprom_mutex;

	int		id; /* switch product id */
	int		num_ports;	/* number of switch ports */

	/* hw bridging */

	u32 fid_mask;
	u8 fid[DSA_MAX_PORTS];
	u16 bridge_mask[DSA_MAX_PORTS];

	unsigned long port_state_update_mask;
	u8 port_state[DSA_MAX_PORTS];

	struct work_struct bridge_work;
};

struct mv88e6xxx_hw_stat {
	char string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int reg;
};

int mv88e6xxx_switch_reset(struct dsa_switch *ds, bool ppu_active);
int mv88e6xxx_setup_port_common(struct dsa_switch *ds, int port);
int mv88e6xxx_setup_common(struct dsa_switch *ds);
int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
			  int reg, u16 val);
int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
int mv88e6xxx_config_prio(struct dsa_switch *ds);
int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
int mv88e6xxx_phy_read(struct dsa_switch *ds, int port, int regnum);
int mv88e6xxx_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val);
int mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int port, int regnum);
int mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int port, int regnum,
				 u16 val);
void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);
int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);
int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
			    int regnum, u16 val);
void mv88e6xxx_poll_link(struct dsa_switch *ds);
void mv88e6xxx_get_strings(struct dsa_switch *ds, int port, uint8_t *data);
void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port,
				 uint64_t *data);
int mv88e6xxx_get_sset_count(struct dsa_switch *ds);
int mv88e6xxx_get_sset_count_basic(struct dsa_switch *ds);
int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port);
void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
			struct ethtool_regs *regs, void *_p);
int  mv88e6xxx_get_temp(struct dsa_switch *ds, int *temp);
int mv88e6xxx_phy_wait(struct dsa_switch *ds);
int mv88e6xxx_eeprom_load_wait(struct dsa_switch *ds);
int mv88e6xxx_eeprom_busy_wait(struct dsa_switch *ds);
int mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int addr, int regnum);
int mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int addr, int regnum,
				 u16 val);
int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
		      struct phy_device *phydev, struct ethtool_eee *e);
int mv88e6xxx_join_bridge(struct dsa_switch *ds, int port, u32 br_port_mask);
int mv88e6xxx_leave_bridge(struct dsa_switch *ds, int port, u32 br_port_mask);
int mv88e6xxx_port_stp_update(struct dsa_switch *ds, int port, u8 state);
int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
			   const unsigned char *addr, u16 vid);
int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port,
			   const unsigned char *addr, u16 vid);
int mv88e6xxx_port_fdb_getnext(struct dsa_switch *ds, int port,
			       unsigned char *addr, bool *is_static);
int mv88e6xxx_phy_page_read(struct dsa_switch *ds, int port, int page, int reg);
int mv88e6xxx_phy_page_write(struct dsa_switch *ds, int port, int page,
			     int reg, int val);
extern struct dsa_switch_driver mv88e6131_switch_driver;
extern struct dsa_switch_driver mv88e6123_61_65_switch_driver;
extern struct dsa_switch_driver mv88e6352_switch_driver;
extern struct dsa_switch_driver mv88e6171_switch_driver;

#define REG_READ(addr, reg)						\
	({								\
		int __ret;						\
									\
		__ret = mv88e6xxx_reg_read(ds, addr, reg);		\
		if (__ret < 0)						\
			return __ret;					\
		__ret;							\
	})

#define REG_WRITE(addr, reg, val)					\
	({								\
		int __ret;						\
									\
		__ret = mv88e6xxx_reg_write(ds, addr, reg, val);	\
		if (__ret < 0)						\
			return __ret;					\
	})



#endif