1 /* 2 * B53 common definitions 3 * 4 * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org> 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef __B53_PRIV_H 20 #define __B53_PRIV_H 21 22 #include <linux/kernel.h> 23 #include <linux/mutex.h> 24 #include <linux/phy.h> 25 #include <linux/etherdevice.h> 26 #include <net/dsa.h> 27 28 #include "b53_regs.h" 29 30 struct b53_device; 31 struct net_device; 32 struct phylink_link_state; 33 34 struct b53_io_ops { 35 int (*read8)(struct b53_device *dev, u8 page, u8 reg, u8 *value); 36 int (*read16)(struct b53_device *dev, u8 page, u8 reg, u16 *value); 37 int (*read32)(struct b53_device *dev, u8 page, u8 reg, u32 *value); 38 int (*read48)(struct b53_device *dev, u8 page, u8 reg, u64 *value); 39 int (*read64)(struct b53_device *dev, u8 page, u8 reg, u64 *value); 40 int (*write8)(struct b53_device *dev, u8 page, u8 reg, u8 value); 41 int (*write16)(struct b53_device *dev, u8 page, u8 reg, u16 value); 42 int (*write32)(struct b53_device *dev, u8 page, u8 reg, u32 value); 43 int (*write48)(struct b53_device *dev, u8 page, u8 reg, u64 value); 44 int (*write64)(struct b53_device *dev, u8 page, u8 reg, u64 value); 45 int (*phy_read16)(struct b53_device *dev, int addr, int reg, u16 *value); 46 int (*phy_write16)(struct b53_device *dev, int addr, int reg, u16 value); 47 int (*irq_enable)(struct b53_device *dev, int port); 48 void (*irq_disable)(struct b53_device *dev, int port); 49 u8 (*serdes_map_lane)(struct b53_device *dev, int port); 50 int (*serdes_link_state)(struct b53_device *dev, int port, 51 struct phylink_link_state *state); 52 void (*serdes_config)(struct b53_device *dev, int port, 53 unsigned int mode, 54 const struct phylink_link_state *state); 55 void (*serdes_an_restart)(struct b53_device *dev, int port); 56 void (*serdes_link_set)(struct b53_device *dev, int port, 57 unsigned int mode, phy_interface_t interface, 58 bool link_up); 59 void (*serdes_phylink_validate)(struct b53_device *dev, int port, 60 unsigned long *supported, 61 struct phylink_link_state *state); 62 }; 63 64 #define B53_INVALID_LANE 0xff 65 66 enum { 67 BCM5325_DEVICE_ID = 0x25, 68 BCM5365_DEVICE_ID = 0x65, 69 BCM5389_DEVICE_ID = 0x89, 70 BCM5395_DEVICE_ID = 0x95, 71 BCM5397_DEVICE_ID = 0x97, 72 BCM5398_DEVICE_ID = 0x98, 73 BCM53115_DEVICE_ID = 0x53115, 74 BCM53125_DEVICE_ID = 0x53125, 75 BCM53128_DEVICE_ID = 0x53128, 76 BCM63XX_DEVICE_ID = 0x6300, 77 BCM53010_DEVICE_ID = 0x53010, 78 BCM53011_DEVICE_ID = 0x53011, 79 BCM53012_DEVICE_ID = 0x53012, 80 BCM53018_DEVICE_ID = 0x53018, 81 BCM53019_DEVICE_ID = 0x53019, 82 BCM58XX_DEVICE_ID = 0x5800, 83 BCM583XX_DEVICE_ID = 0x58300, 84 BCM7445_DEVICE_ID = 0x7445, 85 BCM7278_DEVICE_ID = 0x7278, 86 }; 87 88 #define B53_N_PORTS 9 89 #define B53_N_PORTS_25 6 90 91 struct b53_port { 92 u16 vlan_ctl_mask; 93 struct ethtool_eee eee; 94 u16 pvid; 95 }; 96 97 struct b53_vlan { 98 u16 members; 99 u16 untag; 100 bool valid; 101 }; 102 103 struct b53_device { 104 struct dsa_switch *ds; 105 struct b53_platform_data *pdata; 106 const char *name; 107 108 struct mutex reg_mutex; 109 struct mutex stats_mutex; 110 const struct b53_io_ops *ops; 111 112 /* chip specific data */ 113 u32 chip_id; 114 u8 core_rev; 115 u8 vta_regs[3]; 116 u8 duplex_reg; 117 u8 jumbo_pm_reg; 118 u8 jumbo_size_reg; 119 int reset_gpio; 120 u8 num_arl_entries; 121 122 /* used ports mask */ 123 u16 enabled_ports; 124 unsigned int cpu_port; 125 126 /* connect specific data */ 127 u8 current_page; 128 struct device *dev; 129 u8 serdes_lane; 130 131 /* Master MDIO bus we got probed from */ 132 struct mii_bus *bus; 133 134 void *priv; 135 136 /* run time configuration */ 137 bool enable_jumbo; 138 139 unsigned int num_vlans; 140 struct b53_vlan *vlans; 141 bool vlan_enabled; 142 unsigned int num_ports; 143 struct b53_port *ports; 144 }; 145 146 #define b53_for_each_port(dev, i) \ 147 for (i = 0; i < B53_N_PORTS; i++) \ 148 if (dev->enabled_ports & BIT(i)) 149 150 151 static inline int is5325(struct b53_device *dev) 152 { 153 return dev->chip_id == BCM5325_DEVICE_ID; 154 } 155 156 static inline int is5365(struct b53_device *dev) 157 { 158 #ifdef CONFIG_BCM47XX 159 return dev->chip_id == BCM5365_DEVICE_ID; 160 #else 161 return 0; 162 #endif 163 } 164 165 static inline int is5397_98(struct b53_device *dev) 166 { 167 return dev->chip_id == BCM5397_DEVICE_ID || 168 dev->chip_id == BCM5398_DEVICE_ID; 169 } 170 171 static inline int is539x(struct b53_device *dev) 172 { 173 return dev->chip_id == BCM5395_DEVICE_ID || 174 dev->chip_id == BCM5397_DEVICE_ID || 175 dev->chip_id == BCM5398_DEVICE_ID; 176 } 177 178 static inline int is531x5(struct b53_device *dev) 179 { 180 return dev->chip_id == BCM53115_DEVICE_ID || 181 dev->chip_id == BCM53125_DEVICE_ID || 182 dev->chip_id == BCM53128_DEVICE_ID; 183 } 184 185 static inline int is63xx(struct b53_device *dev) 186 { 187 #ifdef CONFIG_BCM63XX 188 return dev->chip_id == BCM63XX_DEVICE_ID; 189 #else 190 return 0; 191 #endif 192 } 193 194 static inline int is5301x(struct b53_device *dev) 195 { 196 return dev->chip_id == BCM53010_DEVICE_ID || 197 dev->chip_id == BCM53011_DEVICE_ID || 198 dev->chip_id == BCM53012_DEVICE_ID || 199 dev->chip_id == BCM53018_DEVICE_ID || 200 dev->chip_id == BCM53019_DEVICE_ID; 201 } 202 203 static inline int is58xx(struct b53_device *dev) 204 { 205 return dev->chip_id == BCM58XX_DEVICE_ID || 206 dev->chip_id == BCM583XX_DEVICE_ID || 207 dev->chip_id == BCM7445_DEVICE_ID || 208 dev->chip_id == BCM7278_DEVICE_ID; 209 } 210 211 #define B53_CPU_PORT_25 5 212 #define B53_CPU_PORT 8 213 214 struct b53_device *b53_switch_alloc(struct device *base, 215 const struct b53_io_ops *ops, 216 void *priv); 217 218 int b53_switch_detect(struct b53_device *dev); 219 220 int b53_switch_register(struct b53_device *dev); 221 222 static inline void b53_switch_remove(struct b53_device *dev) 223 { 224 dsa_unregister_switch(dev->ds); 225 } 226 227 #define b53_build_op(type_op_size, val_type) \ 228 static inline int b53_##type_op_size(struct b53_device *dev, u8 page, \ 229 u8 reg, val_type val) \ 230 { \ 231 int ret; \ 232 \ 233 mutex_lock(&dev->reg_mutex); \ 234 ret = dev->ops->type_op_size(dev, page, reg, val); \ 235 mutex_unlock(&dev->reg_mutex); \ 236 \ 237 return ret; \ 238 } 239 240 b53_build_op(read8, u8 *); 241 b53_build_op(read16, u16 *); 242 b53_build_op(read32, u32 *); 243 b53_build_op(read48, u64 *); 244 b53_build_op(read64, u64 *); 245 246 b53_build_op(write8, u8); 247 b53_build_op(write16, u16); 248 b53_build_op(write32, u32); 249 b53_build_op(write48, u64); 250 b53_build_op(write64, u64); 251 252 struct b53_arl_entry { 253 u8 port; 254 u8 mac[ETH_ALEN]; 255 u16 vid; 256 u8 is_valid:1; 257 u8 is_age:1; 258 u8 is_static:1; 259 }; 260 261 static inline void b53_arl_to_entry(struct b53_arl_entry *ent, 262 u64 mac_vid, u32 fwd_entry) 263 { 264 memset(ent, 0, sizeof(*ent)); 265 ent->port = fwd_entry & ARLTBL_DATA_PORT_ID_MASK; 266 ent->is_valid = !!(fwd_entry & ARLTBL_VALID); 267 ent->is_age = !!(fwd_entry & ARLTBL_AGE); 268 ent->is_static = !!(fwd_entry & ARLTBL_STATIC); 269 u64_to_ether_addr(mac_vid, ent->mac); 270 ent->vid = mac_vid >> ARLTBL_VID_S; 271 } 272 273 static inline void b53_arl_from_entry(u64 *mac_vid, u32 *fwd_entry, 274 const struct b53_arl_entry *ent) 275 { 276 *mac_vid = ether_addr_to_u64(ent->mac); 277 *mac_vid |= (u64)(ent->vid & ARLTBL_VID_MASK) << ARLTBL_VID_S; 278 *fwd_entry = ent->port & ARLTBL_DATA_PORT_ID_MASK; 279 if (ent->is_valid) 280 *fwd_entry |= ARLTBL_VALID; 281 if (ent->is_static) 282 *fwd_entry |= ARLTBL_STATIC; 283 if (ent->is_age) 284 *fwd_entry |= ARLTBL_AGE; 285 } 286 287 #ifdef CONFIG_BCM47XX 288 289 #include <linux/bcm47xx_nvram.h> 290 #include <bcm47xx_board.h> 291 static inline int b53_switch_get_reset_gpio(struct b53_device *dev) 292 { 293 enum bcm47xx_board board = bcm47xx_board_get(); 294 295 switch (board) { 296 case BCM47XX_BOARD_LINKSYS_WRT300NV11: 297 case BCM47XX_BOARD_LINKSYS_WRT310NV1: 298 return 8; 299 default: 300 return bcm47xx_nvram_gpio_pin("robo_reset"); 301 } 302 } 303 #else 304 static inline int b53_switch_get_reset_gpio(struct b53_device *dev) 305 { 306 return -ENOENT; 307 } 308 #endif 309 310 /* Exported functions towards other drivers */ 311 void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port); 312 int b53_configure_vlan(struct dsa_switch *ds); 313 void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset, 314 uint8_t *data); 315 void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data); 316 int b53_get_sset_count(struct dsa_switch *ds, int port, int sset); 317 void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data); 318 int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge); 319 void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *bridge); 320 void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state); 321 void b53_br_fast_age(struct dsa_switch *ds, int port); 322 int b53_br_egress_floods(struct dsa_switch *ds, int port, 323 bool unicast, bool multicast); 324 void b53_port_event(struct dsa_switch *ds, int port); 325 void b53_phylink_validate(struct dsa_switch *ds, int port, 326 unsigned long *supported, 327 struct phylink_link_state *state); 328 int b53_phylink_mac_link_state(struct dsa_switch *ds, int port, 329 struct phylink_link_state *state); 330 void b53_phylink_mac_config(struct dsa_switch *ds, int port, 331 unsigned int mode, 332 const struct phylink_link_state *state); 333 void b53_phylink_mac_an_restart(struct dsa_switch *ds, int port); 334 void b53_phylink_mac_link_down(struct dsa_switch *ds, int port, 335 unsigned int mode, 336 phy_interface_t interface); 337 void b53_phylink_mac_link_up(struct dsa_switch *ds, int port, 338 unsigned int mode, 339 phy_interface_t interface, 340 struct phy_device *phydev); 341 int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering); 342 int b53_vlan_prepare(struct dsa_switch *ds, int port, 343 const struct switchdev_obj_port_vlan *vlan); 344 void b53_vlan_add(struct dsa_switch *ds, int port, 345 const struct switchdev_obj_port_vlan *vlan); 346 int b53_vlan_del(struct dsa_switch *ds, int port, 347 const struct switchdev_obj_port_vlan *vlan); 348 int b53_fdb_add(struct dsa_switch *ds, int port, 349 const unsigned char *addr, u16 vid); 350 int b53_fdb_del(struct dsa_switch *ds, int port, 351 const unsigned char *addr, u16 vid); 352 int b53_fdb_dump(struct dsa_switch *ds, int port, 353 dsa_fdb_dump_cb_t *cb, void *data); 354 int b53_mirror_add(struct dsa_switch *ds, int port, 355 struct dsa_mall_mirror_tc_entry *mirror, bool ingress); 356 enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port); 357 void b53_mirror_del(struct dsa_switch *ds, int port, 358 struct dsa_mall_mirror_tc_entry *mirror); 359 int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy); 360 void b53_disable_port(struct dsa_switch *ds, int port); 361 void b53_brcm_hdr_setup(struct dsa_switch *ds, int port); 362 void b53_eee_enable_set(struct dsa_switch *ds, int port, bool enable); 363 int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy); 364 int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e); 365 int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e); 366 367 #endif 368