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	/* When using multi-chip addressing, this mutex protects
20	 * access to the indirect access registers.  (In single-chip
21	 * mode, this mutex is effectively useless.)
22	 */
23	struct mutex	smi_mutex;
24
25#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
26	/* Handles automatic disabling and re-enabling of the PHY
27	 * polling unit.
28	 */
29	struct mutex		ppu_mutex;
30	int			ppu_disabled;
31	struct work_struct	ppu_work;
32	struct timer_list	ppu_timer;
33#endif
34
35	/* This mutex serialises access to the statistics unit.
36	 * Hold this mutex over snapshot + dump sequences.
37	 */
38	struct mutex	stats_mutex;
39
40	int		id; /* switch product id */
41};
42
43struct mv88e6xxx_hw_stat {
44	char string[ETH_GSTRING_LEN];
45	int sizeof_stat;
46	int reg;
47};
48
49int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
50int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
51int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
52			  int reg, u16 val);
53int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
54int mv88e6xxx_config_prio(struct dsa_switch *ds);
55int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
56int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
57int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);
58int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);
59void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);
60int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);
61int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
62			    int regnum, u16 val);
63void mv88e6xxx_poll_link(struct dsa_switch *ds);
64void mv88e6xxx_get_strings(struct dsa_switch *ds,
65			   int nr_stats, struct mv88e6xxx_hw_stat *stats,
66			   int port, uint8_t *data);
67void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
68				 int nr_stats, struct mv88e6xxx_hw_stat *stats,
69				 int port, uint64_t *data);
70
71extern struct dsa_switch_driver mv88e6131_switch_driver;
72extern struct dsa_switch_driver mv88e6123_61_65_switch_driver;
73
74#define REG_READ(addr, reg)						\
75	({								\
76		int __ret;						\
77									\
78		__ret = mv88e6xxx_reg_read(ds, addr, reg);		\
79		if (__ret < 0)						\
80			return __ret;					\
81		__ret;							\
82	})
83
84#define REG_WRITE(addr, reg, val)					\
85	({								\
86		int __ret;						\
87									\
88		__ret = mv88e6xxx_reg_write(ds, addr, reg, val);	\
89		if (__ret < 0)						\
90			return __ret;					\
91	})
92
93
94
95#endif