1/*
 2 * net/dsa/mv88e6xxx.h - Marvell 88e6xxx switch chip support
 3 * Copyright (c) 2008 Marvell Semiconductor
 4 *
 5 * This program is free software; you can redistribute it and/or modify
 6 * it under the terms of the GNU General Public License as published by
 7 * the Free Software Foundation; either version 2 of the License, or
 8 * (at your option) any later version.
 9 */
10
11#ifndef __MV88E6XXX_H
12#define __MV88E6XXX_H
13
14#define REG_PORT(p)		(0x10 + (p))
15#define REG_GLOBAL		0x1b
16#define REG_GLOBAL2		0x1c
17
18struct mv88e6xxx_priv_state {
19	/*
20	 * When using multi-chip addressing, this mutex protects
21	 * access to the indirect access registers.  (In single-chip
22	 * mode, this mutex is effectively useless.)
23	 */
24	struct mutex	smi_mutex;
25
26#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
27	/*
28	 * Handles automatic disabling and re-enabling of the PHY
29	 * polling unit.
30	 */
31	struct mutex		ppu_mutex;
32	int			ppu_disabled;
33	struct work_struct	ppu_work;
34	struct timer_list	ppu_timer;
35#endif
36
37	/*
38	 * This mutex serialises access to the statistics unit.
39	 * Hold this mutex over snapshot + dump sequences.
40	 */
41	struct mutex	stats_mutex;
42
43	int		id; /* switch product id */
44};
45
46struct mv88e6xxx_hw_stat {
47	char string[ETH_GSTRING_LEN];
48	int sizeof_stat;
49	int reg;
50};
51
52int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
53int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
54int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
55                          int reg, u16 val);
56int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
57int mv88e6xxx_config_prio(struct dsa_switch *ds);
58int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
59int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
60int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);
61int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);
62void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);
63int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);
64int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
65			    int regnum, u16 val);
66void mv88e6xxx_poll_link(struct dsa_switch *ds);
67void mv88e6xxx_get_strings(struct dsa_switch *ds,
68			   int nr_stats, struct mv88e6xxx_hw_stat *stats,
69			   int port, uint8_t *data);
70void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
71				 int nr_stats, struct mv88e6xxx_hw_stat *stats,
72				 int port, uint64_t *data);
73
74extern struct dsa_switch_driver mv88e6131_switch_driver;
75extern struct dsa_switch_driver mv88e6123_61_65_switch_driver;
76
77#define REG_READ(addr, reg)						\
78	({								\
79		int __ret;						\
80									\
81		__ret = mv88e6xxx_reg_read(ds, addr, reg);		\
82		if (__ret < 0)						\
83			return __ret;					\
84		__ret;							\
85	})
86
87#define REG_WRITE(addr, reg, val)					\
88	({								\
89		int __ret;						\
90									\
91		__ret = mv88e6xxx_reg_write(ds, addr, reg, val);	\
92		if (__ret < 0)						\
93			return __ret;					\
94	})
95
96
97
98#endif