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 18 struct 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 46 struct mv88e6xxx_hw_stat { 47 char string[ETH_GSTRING_LEN]; 48 int sizeof_stat; 49 int reg; 50 }; 51 52 int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg); 53 int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg); 54 int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr, 55 int reg, u16 val); 56 int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val); 57 int mv88e6xxx_config_prio(struct dsa_switch *ds); 58 int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr); 59 int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr); 60 int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum); 61 int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val); 62 void mv88e6xxx_ppu_state_init(struct dsa_switch *ds); 63 int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum); 64 int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr, 65 int regnum, u16 val); 66 void mv88e6xxx_poll_link(struct dsa_switch *ds); 67 void mv88e6xxx_get_strings(struct dsa_switch *ds, 68 int nr_stats, struct mv88e6xxx_hw_stat *stats, 69 int port, uint8_t *data); 70 void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, 71 int nr_stats, struct mv88e6xxx_hw_stat *stats, 72 int port, uint64_t *data); 73 74 extern struct dsa_switch_driver mv88e6131_switch_driver; 75 extern 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 99