target/linux/generic-2.6/files/drivers/net/phy/ip175c.c

   1 /*
   2  * swconfig-ip175c.c: Swconfig configuration for IC+ IP175C switch
   3  *
   4  * Copyright (C) 2008 Patrick Horn <patrick.horn@gmail.com>
   5  * Copyright (C) 2008 Martin Mares <mj@ucw.cz>
   6  * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/module.h>
  21 #include <linux/init.h>
  22 #include <linux/list.h>
  23 #include <linux/skbuff.h>
  24 #include <linux/mii.h>
  25 #include <linux/phy.h>
  26 #include <linux/delay.h>
  27 #include <linux/switch.h>
  28
  29 #define MAX_VLANS 16
  30 #define MAX_PORTS 9
  31
  32 typedef struct ip175c_reg {
  33         u16 p;                  // phy
  34         u16 m;                  // mii
  35 } reg;
  36 typedef char bitnum;
  37
  38 #define NOTSUPPORTED {-1,-1}
  39
  40 #define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
  41
  42 /*********** CONSTANTS ***********/
  43 struct register_mappings {
  44         char *NAME;
  45         u16 MODEL_NO;                   // compare to bits 4-9 of MII register 0,3.
  46         bitnum NUM_PORTS;
  47         bitnum CPU_PORT;
  48
  49 /* The default VLAN for each port.
  50          Default: 0x0001 for Ports 0,1,2,3
  51                   0x0002 for Ports 4,5 */
  52         reg VLAN_DEFAULT_TAG_REG[MAX_PORTS];
  53
  54 /* These ports are tagged.
  55          Default: 0x00 */
  56         reg ADD_TAG_REG;
  57         reg REMOVE_TAG_REG;
  58         bitnum ADD_TAG_BIT[MAX_PORTS];
  59 /* These ports are untagged.
  60          Default: 0x00 (i.e. do not alter any VLAN tags...)
  61          Maybe set to 0 if user disables VLANs. */
  62         bitnum REMOVE_TAG_BIT[MAX_PORTS];
  63
  64 /* Port M and Port N are on the same VLAN.
  65          Default: All ports on all VLANs. */
  66 // Use register {29, 19+N/2}
  67         reg VLAN_LOOKUP_REG;
  68 // Port 5 uses register {30, 18} but same as odd bits.
  69         reg VLAN_LOOKUP_REG_5;          // in a different register on IP175C.
  70         bitnum VLAN_LOOKUP_EVEN_BIT[MAX_PORTS];
  71         bitnum VLAN_LOOKUP_ODD_BIT[MAX_PORTS];
  72
  73 /* This VLAN corresponds to which ports.
  74          Default: 0x2f,0x30,0x3f,0x3f... */
  75         reg TAG_VLAN_MASK_REG;
  76         bitnum TAG_VLAN_MASK_EVEN_BIT[MAX_PORTS];
  77         bitnum TAG_VLAN_MASK_ODD_BIT[MAX_PORTS];
  78
  79         int RESET_VAL;
  80         reg RESET_REG;
  81
  82         reg MODE_REG;
  83         int MODE_VAL;
  84
  85 /* General flags */
  86         reg ROUTER_CONTROL_REG;
  87         reg VLAN_CONTROL_REG;
  88         bitnum TAG_VLAN_BIT;
  89         bitnum ROUTER_EN_BIT;
  90         bitnum NUMLAN_GROUPS_MAX;
  91         bitnum NUMLAN_GROUPS_BIT;
  92
  93         reg MII_REGISTER_EN;
  94         bitnum MII_REGISTER_EN_BIT;
  95
  96         // set to 1 for 178C, 0 for 175C.
  97         bitnum SIMPLE_VLAN_REGISTERS;   // 175C has two vlans per register but 178C has only one.
  98 };
  99
 100 static const struct register_mappings IP178C = {
 101         .NAME = "IP178C",
 102         .MODEL_NO = 0x18,
 103         .VLAN_DEFAULT_TAG_REG = {
 104                 {30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
 105                 {30,9},{30,10},{30,11},
 106         },
 107
 108         .ADD_TAG_REG = {30,12},
 109         .ADD_TAG_BIT = {0,1,2,3,4,5,6,7,8},
 110         .REMOVE_TAG_REG = {30,13},
 111         .REMOVE_TAG_BIT = {4,5,6,7,8,9,10,11,12},
 112
 113         .SIMPLE_VLAN_REGISTERS = 1,
 114
 115         .VLAN_LOOKUP_REG = {31,0},// +N
 116         .VLAN_LOOKUP_REG_5 = NOTSUPPORTED, // not used with SIMPLE_VLAN_REGISTERS
 117         .VLAN_LOOKUP_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
 118         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,5,6,7,8},
 119
 120         .TAG_VLAN_MASK_REG = {30,14}, // +N
 121         .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
 122         .TAG_VLAN_MASK_ODD_BIT = {0,1,2,3,4,5,6,7,8},
 123
 124         .RESET_VAL = 0x55AA,
 125         .RESET_REG = {30,0},
 126         .MODE_VAL = 0,
 127         .MODE_REG = NOTSUPPORTED,
 128
 129         .ROUTER_CONTROL_REG = {30,30},
 130         .ROUTER_EN_BIT = 11,
 131         .NUMLAN_GROUPS_MAX = 8,
 132         .NUMLAN_GROUPS_BIT = 8, // {0-2}
 133
 134         .VLAN_CONTROL_REG = {30,13},
 135         .TAG_VLAN_BIT = 3,
 136
 137         .CPU_PORT = 8,
 138         .NUM_PORTS = 9,
 139
 140         .MII_REGISTER_EN = NOTSUPPORTED,
 141
 142 };
 143
 144 static const struct register_mappings IP175C = {
 145         .NAME = "IP175C",
 146         .MODEL_NO = 0x18,
 147         .VLAN_DEFAULT_TAG_REG = {
 148                 {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
 149                 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
 150         },
 151
 152         .ADD_TAG_REG = {29,23},
 153         .REMOVE_TAG_REG = {29,23},
 154         .ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
 155         .REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
 156
 157         .SIMPLE_VLAN_REGISTERS = 0,
 158
 159         .VLAN_LOOKUP_REG = {29,19},// +N/2
 160         .VLAN_LOOKUP_REG_5 = {30,18},
 161         .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
 162         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
 163
 164         .TAG_VLAN_MASK_REG = {30,1}, // +N/2
 165         .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
 166         .TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
 167
 168         .RESET_VAL = 0x175C,
 169         .RESET_REG = {30,0},
 170         .MODE_VAL = 0x175C,
 171         .MODE_REG = {29,31},
 172
 173         .ROUTER_CONTROL_REG = {30,9},
 174         .ROUTER_EN_BIT = 3,
 175         .NUMLAN_GROUPS_MAX = 8,
 176         .NUMLAN_GROUPS_BIT = 0, // {0-2}
 177
 178         .VLAN_CONTROL_REG = {30,9},
 179         .TAG_VLAN_BIT = 7,
 180
 181         .NUM_PORTS = 6,
 182         .CPU_PORT = 5,
 183
 184         .MII_REGISTER_EN = NOTSUPPORTED,
 185
 186 };
 187
 188 static const struct register_mappings IP175A = {
 189         .NAME = "IP175A",
 190         .MODEL_NO = 0x05,
 191         .VLAN_DEFAULT_TAG_REG = {
 192                 {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
 193                 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
 194         },
 195
 196         .ADD_TAG_REG = {0,23},
 197         .REMOVE_TAG_REG = {0,23},
 198         .ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
 199         .REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
 200
 201         .SIMPLE_VLAN_REGISTERS = 0,
 202
 203         // Register 19-21 documentation is missing/contradictory.
 204         // For registers 19-21 ports need to be: even numbers to MSB, odd to LSB.
 205         // This contradicts text for ROM registers, but follows logic of CoS bits.
 206
 207         .VLAN_LOOKUP_REG = {0,19},// +N/2
 208         .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
 209         .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
 210         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
 211
 212         .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
 213         .TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
 214         .TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
 215
 216         .RESET_VAL = -1,
 217         .RESET_REG = NOTSUPPORTED,
 218         .MODE_VAL = 0,
 219         .MODE_REG = NOTSUPPORTED,
 220
 221         .ROUTER_CONTROL_REG = NOTSUPPORTED,
 222         .VLAN_CONTROL_REG = NOTSUPPORTED,
 223         .TAG_VLAN_BIT = -1,
 224         .ROUTER_EN_BIT = -1,
 225         .NUMLAN_GROUPS_MAX = -1,
 226         .NUMLAN_GROUPS_BIT = -1, // {0-2}
 227
 228         .NUM_PORTS = 5,
 229         .CPU_PORT = 4,
 230
 231         .MII_REGISTER_EN = {0, 18},
 232         .MII_REGISTER_EN_BIT = 7,
 233 };
 234
 235
 236 struct ip175c_state {
 237         struct switch_dev dev;
 238         struct mii_bus *mii_bus;
 239         bool registered;
 240
 241         int router_mode;                // ROUTER_EN
 242         int vlan_enabled;               // TAG_VLAN_EN
 243         struct port_state {
 244                 u16 pvid;
 245                 unsigned int shareports;
 246         } ports[MAX_PORTS];
 247         unsigned int add_tag;
 248         unsigned int remove_tag;
 249         int num_vlans;
 250         unsigned int vlan_ports[MAX_VLANS];
 251         const struct register_mappings *regs;
 252         reg proc_mii; /*!< phy/reg for the low level register access via /proc */
 253
 254         char buf[80];
 255 };
 256
 257 static int ip_phy_read(struct mii_bus *bus, int port, int reg)
 258 {
 259         int val;
 260
 261         mutex_lock(&bus->mdio_lock);
 262         val = bus->read(bus, port, reg);
 263         mutex_unlock(&bus->mdio_lock);
 264
 265         return val;
 266 }
 267
 268
 269 static int ip_phy_write(struct mii_bus *bus, int port, int reg, u16 val)
 270 {
 271         int err;
 272
 273         mutex_lock(&bus->mdio_lock);
 274         err = bus->write(bus, port, reg, val);
 275         mutex_unlock(&bus->mdio_lock);
 276
 277         return err;
 278 }
 279
 280
 281 static int getPhy (struct ip175c_state *state, reg mii)
 282 {
 283         struct mii_bus *bus = state->mii_bus;
 284         int val;
 285
 286         if (!REG_SUPP(mii))
 287                 return -EFAULT;
 288
 289         val = ip_phy_read(bus, mii.p, mii.m);
 290         if (val < 0)
 291                 pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", mii.p,mii.m,-val);
 292
 293         return val;
 294 }
 295
 296 static int setPhy (struct ip175c_state *state, reg mii, u16 value)
 297 {
 298         struct mii_bus *bus = state->mii_bus;
 299         int err;
 300
 301         if (!REG_SUPP(mii))
 302                 return -EFAULT;
 303
 304         err = ip_phy_write(bus, mii.p, mii.m, value);
 305         if (err < 0) {
 306                 pr_warning("IP175C: Unable to set MII register %d,%d to %d: error %d\n", mii.p,mii.m,value,-err);
 307                 return err;
 308         }
 309         mdelay(2);
 310         getPhy(state, mii);
 311         return 0;
 312 }
 313
 314 /**
 315  * These two macros are to simplify the mapping of logical bits to the bits in hardware.
 316  * NOTE: these macros will return if there is an error!
 317  */
 318
 319 #define GET_PORT_BITS(state, bits, addr, bit_lookup)            \
 320         do {                                                    \
 321                 int i, val = getPhy((state), (addr));           \
 322                 if (val < 0)                                    \
 323                         return val;                             \
 324                 (bits) = 0;                                     \
 325                 for (i = 0; i < MAX_PORTS; i++) {               \
 326                         if ((bit_lookup)[i] == -1) continue;    \
 327                         if (val & (1<<(bit_lookup)[i]))         \
 328                                 (bits) |= (1<<i);               \
 329                 }                                               \
 330         } while (0)
 331
 332 #define SET_PORT_BITS(state, bits, addr, bit_lookup)            \
 333         do {                                                    \
 334                 int i, val = getPhy((state), (addr));           \
 335                 if (val < 0)                                    \
 336                         return val;                             \
 337                 for (i = 0; i < MAX_PORTS; i++) {               \
 338                         unsigned int newmask = ((bits)&(1<<i)); \
 339                         if ((bit_lookup)[i] == -1) continue;    \
 340                         val &= ~(1<<(bit_lookup)[i]);           \
 341                         val |= ((newmask>>i)<<(bit_lookup)[i]); \
 342                 }                                               \
 343                 val = setPhy((state), (addr), val);             \
 344                 if (val < 0)                                    \
 345                         return val;                             \
 346         } while (0)
 347
 348 static int get_model(struct ip175c_state *state)
 349 {
 350         reg oui_id_reg = {0, 2};
 351         int oui_id;
 352         reg model_no_reg = {0, 3};
 353         int model_no, model_no_orig;
 354
 355         // 175 and 178 have the same oui ID.
 356         reg oui_id_reg_178c = {5, 2}; // returns error on IP175C.
 357         int is_178c = 0;
 358
 359         oui_id = getPhy(state, oui_id_reg);
 360         if (oui_id != 0x0243) {
 361                 // non
 362                 return -ENODEV; // Not a IC+ chip.
 363         }
 364         oui_id = getPhy(state, oui_id_reg_178c);
 365         if (oui_id == 0x0243) {
 366                 is_178c = 1;
 367         }
 368
 369         model_no_orig = getPhy(state, model_no_reg);
 370         if (model_no_orig < 0) {
 371                 return -ENODEV;
 372         }
 373         model_no = model_no_orig >> 4; // shift out revision number.
 374         model_no &= 0x3f; // only take the model number (low 6 bits).
 375         if (model_no == IP175A.MODEL_NO) {
 376                 state->regs = &IP175A;
 377         } else if (model_no == IP175C.MODEL_NO) {
 378                 if (is_178c) {
 379                         state->regs = &IP178C;
 380                 } else {
 381                         state->regs = &IP175C;
 382                 }
 383         } else {
 384                 printk(KERN_WARNING "ip175c: Found an unknown IC+ switch with model number %02Xh.\n", model_no_orig);
 385                 return -EPERM;
 386         }
 387         return 0;
 388 }
 389
 390 /** Get only the vlan and router flags on the router **/
 391 static int get_flags(struct ip175c_state *state)
 392 {
 393         int val;
 394
 395         state->router_mode = 0;
 396         state->vlan_enabled = -1; // hack
 397         state->num_vlans = 0;
 398
 399         if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
 400                 return 0; // not an error if it doesn't support enable vlan.
 401         }
 402
 403         val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
 404         if (val < 0) {
 405                 return val;
 406         }
 407         if (state->regs->ROUTER_EN_BIT >= 0)
 408                 state->router_mode = ((val>>state->regs->ROUTER_EN_BIT) & 1);
 409
 410         if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
 411                 state->num_vlans = (val >> state->regs->NUMLAN_GROUPS_BIT);
 412                 state->num_vlans &= (state->regs->NUMLAN_GROUPS_MAX-1);
 413                 state->num_vlans+=1; // does not include WAN.
 414         }
 415
 416
 417         val = getPhy(state, state->regs->VLAN_CONTROL_REG);
 418         if (val < 0) {
 419                 return 0;
 420         }
 421         if (state->regs->TAG_VLAN_BIT >= 0)
 422                 state->vlan_enabled = ((val>>state->regs->TAG_VLAN_BIT) & 1);
 423
 424         return  0;
 425 }
 426 /** Get all state variables for VLAN mappings and port-based tagging. **/
 427 static int get_state(struct ip175c_state *state)
 428 {
 429         int i, j;
 430         int ret;
 431         ret = get_flags(state);
 432         if (ret < 0) {
 433                 return ret;
 434         }
 435         GET_PORT_BITS(state, state->remove_tag,
 436                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 437         GET_PORT_BITS(state, state->add_tag,
 438                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 439
 440         if (state->vlan_enabled == -1) {
 441                 // not sure how to get this...
 442                 state->vlan_enabled = (state->remove_tag || state->add_tag);
 443         }
 444
 445         if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
 446         for (j=0; j<MAX_PORTS; j++) {
 447                 state->ports[j].shareports = 0; // initialize them in case.
 448         }
 449         for (j=0; j<state->regs->NUM_PORTS; j++) {
 450                 reg addr;
 451                 const bitnum *bit_lookup = (j%2==0)?
 452                         state->regs->VLAN_LOOKUP_EVEN_BIT:
 453                         state->regs->VLAN_LOOKUP_ODD_BIT;
 454                 addr = state->regs->VLAN_LOOKUP_REG;
 455                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 456                         addr.m += j;
 457                 } else {
 458                         switch (j) {
 459                         case 0:
 460                         case 1:
 461                                 break;
 462                         case 2:
 463                         case 3:
 464                                 addr.m+=1;
 465                                 break;
 466                         case 4:
 467                                 addr.m+=2;
 468                                 break;
 469                         case 5:
 470                                 addr = state->regs->VLAN_LOOKUP_REG_5;
 471                                 break;
 472                         }
 473                 }
 474
 475                 if (REG_SUPP(addr)) {
 476                         GET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
 477                 }
 478         }
 479         } else {
 480                 for (j=0; j<MAX_PORTS; j++) {
 481                         state->ports[j].shareports = 0xff;
 482                 }
 483         }
 484
 485         for (i=0; i<MAX_PORTS; i++) {
 486                 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
 487                         int val = getPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i]);
 488                         if (val < 0) {
 489                                 return val;
 490                         }
 491                         state->ports[i].pvid = val;
 492                 } else {
 493                         state->ports[i].pvid = 0;
 494                 }
 495         }
 496
 497         if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
 498                 for (j=0; j<MAX_VLANS; j++) {
 499                         reg addr = state->regs->TAG_VLAN_MASK_REG;
 500                         const bitnum *bit_lookup = (j%2==0)?
 501                                 state->regs->TAG_VLAN_MASK_EVEN_BIT:
 502                                 state->regs->TAG_VLAN_MASK_ODD_BIT;
 503                         if (state->regs->SIMPLE_VLAN_REGISTERS) {
 504                                 addr.m += j;
 505                         } else {
 506                                 addr.m += j/2;
 507                         }
 508                         GET_PORT_BITS(state, state->vlan_ports[j], addr, bit_lookup);
 509                 }
 510         } else {
 511                 for (j=0; j<MAX_VLANS; j++) {
 512                         state->vlan_ports[j] = 0;
 513                         for (i=0; i<state->regs->NUM_PORTS; i++) {
 514                                 if ((state->ports[i].pvid == j) ||
 515                                                 (state->ports[i].pvid == 0)) {
 516                                         state->vlan_ports[j] |= (1<<i);
 517                                 }
 518                         }
 519                 }
 520         }
 521
 522         return 0;
 523 }
 524
 525
 526 /** Only update vlan and router flags in the switch **/
 527 static int update_flags(struct ip175c_state *state)
 528 {
 529         int val;
 530
 531         if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
 532                 return 0;
 533         }
 534
 535         val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
 536         if (val < 0) {
 537                 return val;
 538         }
 539         if (state->regs->ROUTER_EN_BIT >= 0) {
 540                 if (state->router_mode) {
 541                         val |= (1<<state->regs->ROUTER_EN_BIT);
 542                 } else {
 543                         val &= (~(1<<state->regs->ROUTER_EN_BIT));
 544                 }
 545         }
 546         if (state->regs->TAG_VLAN_BIT >= 0) {
 547                 if (state->vlan_enabled) {
 548                         val |= (1<<state->regs->TAG_VLAN_BIT);
 549                 } else {
 550                         val &= (~(1<<state->regs->TAG_VLAN_BIT));
 551                 }
 552         }
 553         if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
 554                 val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
 555                 if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
 556                         val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
 557                 } else if (state->num_vlans >= 1) {
 558                         val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
 559                 }
 560         }
 561         return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
 562 }
 563
 564 /** Update all VLAN and port state.  Usually you should call "correct_vlan_state" first. **/
 565 static int update_state(struct ip175c_state *state)
 566 {
 567         int j;
 568         int i;
 569         SET_PORT_BITS(state, state->add_tag,
 570                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 571         SET_PORT_BITS(state, state->remove_tag,
 572                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 573
 574         if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
 575         for (j=0; j<state->regs->NUM_PORTS; j++) {
 576                 reg addr;
 577                 const bitnum *bit_lookup = (j%2==0)?
 578                         state->regs->VLAN_LOOKUP_EVEN_BIT:
 579                         state->regs->VLAN_LOOKUP_ODD_BIT;
 580
 581                 // duplicate code -- sorry
 582                 addr = state->regs->VLAN_LOOKUP_REG;
 583                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 584                         addr.m += j;
 585                 } else {
 586                         switch (j) {
 587                         case 0:
 588                         case 1:
 589                                 break;
 590                         case 2:
 591                         case 3:
 592                                 addr.m+=1;
 593                                 break;
 594                         case 4:
 595                                 addr.m+=2;
 596                                 break;
 597                         case 5:
 598                                 addr = state->regs->VLAN_LOOKUP_REG_5;
 599                                 break;
 600                         default:
 601                                 addr.m = -1; // shouldn't get here, but...
 602                                 break;
 603                         }
 604                 }
 605                 //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
 606                 if (REG_SUPP(addr)) {
 607                         SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
 608                 }
 609         }
 610         }
 611         if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
 612         for (j=0; j<MAX_VLANS; j++) {
 613                 reg addr = state->regs->TAG_VLAN_MASK_REG;
 614                 const bitnum *bit_lookup = (j%2==0)?
 615                         state->regs->TAG_VLAN_MASK_EVEN_BIT:
 616                         state->regs->TAG_VLAN_MASK_ODD_BIT;
 617                 unsigned int vlan_mask;
 618                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 619                         addr.m += j;
 620                 } else {
 621                         addr.m += j/2;
 622                 }
 623                 vlan_mask = state->vlan_ports[j];
 624                 SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
 625         }
 626         }
 627
 628         for (i=0; i<MAX_PORTS; i++) {
 629                 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
 630                         int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
 631                                         state->ports[i].pvid);
 632                         if (err < 0) {
 633                                 return err;
 634                         }
 635                 }
 636         }
 637
 638         return update_flags(state);
 639
 640         // software reset: 30.0 = 0x175C
 641         // wait 2ms
 642         // reset ports 0,1,2,3,4
 643 }
 644
 645 /*
 646   Uses only the VLAN port mask and the add tag mask to generate the other fields:
 647   which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
 648  */
 649 static void correct_vlan_state(struct ip175c_state *state)
 650 {
 651         int i, j;
 652         state->num_vlans = 0;
 653         for (i=0; i<MAX_VLANS; i++) {
 654                 if (state->vlan_ports[i] != 0) {
 655                         state->num_vlans = i+1; //hack -- we need to store the "set" vlans somewhere...
 656                 }
 657         }
 658
 659
 660
 661         for (i=0; i<state->regs->NUM_PORTS; i++) {
 662                 unsigned int portmask = (1<<i);
 663                 if (!state->vlan_enabled) {
 664                         // share with everybody!
 665                         state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
 666                         continue;
 667                 }
 668                 state->ports[i].shareports = portmask;
 669                 for (j=0; j<MAX_VLANS; j++) {
 670                         if (state->vlan_ports[j] & portmask)
 671                                 state->ports[i].shareports |= state->vlan_ports[j];
 672                 }
 673         }
 674         state->remove_tag = ((~state->add_tag) & ((1<<state->regs->NUM_PORTS)-1));
 675 }
 676
 677 static int ip175c_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 678 {
 679         struct ip175c_state *state = dev->priv;
 680         int err;
 681
 682         err = get_state(state); // may be set in get_state.
 683         if (err < 0)
 684                 return err;
 685         val->value.i = state->vlan_enabled;
 686         return 0;
 687 }
 688
 689 static int ip175c_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 690 {
 691         struct ip175c_state *state = dev->priv;
 692         int err;
 693         int enable;
 694         int i;
 695
 696         err = get_state(state);
 697         if (err < 0)
 698                 return err;
 699         enable = val->value.i;
 700
 701         if (state->vlan_enabled == enable) {
 702                 // do not change any state.
 703                 return 0;
 704         }
 705         state->vlan_enabled = enable;
 706
 707         // Otherwise, if we are switching state, set fields to a known default.
 708         state->remove_tag = 0x0000;
 709         state->add_tag = 0x0000;
 710         for (i = 0; i < MAX_PORTS; i++)
 711                 state->ports[i].shareports = 0xffff;
 712
 713         for (i = 0; i < MAX_VLANS; i++)
 714                 state->vlan_ports[i] = 0x0;
 715
 716         if (state->vlan_enabled) {
 717                 // updates other fields only based off vlan_ports and add_tag fields.
 718                 // Note that by default, no ports are in any vlans.
 719                 correct_vlan_state(state);
 720         }
 721         // ensure sane defaults?
 722         return update_state(state);
 723 }
 724
 725 static int ip175c_get_ports(struct switch_dev *dev, struct switch_val *val)
 726 {
 727         struct ip175c_state *state = dev->priv;
 728         int err;
 729         int b;
 730         int ind;
 731         unsigned int ports;
 732
 733         if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
 734                 return -EINVAL;
 735
 736         err = get_state(state);
 737         if (err<0)
 738                 return err;
 739
 740         ports = state->vlan_ports[val->port_vlan];
 741         b = 0;
 742         ind = 0;
 743         while (b < MAX_PORTS) {
 744                 if (ports&1) {
 745                         int istagged = ((state->add_tag >> b) & 1);
 746                         val->value.ports[ind].id = b;
 747                         val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
 748                         ind++;
 749                 }
 750                 b++;
 751                 ports >>= 1;
 752         }
 753         val->len = ind;
 754
 755         return 0;
 756 }
 757
 758 static int ip175c_set_ports(struct switch_dev *dev, struct switch_val *val)
 759 {
 760         struct ip175c_state *state = dev->priv;
 761         int i;
 762         int err;
 763
 764         if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
 765                 return -EINVAL;
 766
 767         err = get_state(state);
 768         if (err < 0)
 769                 return err;
 770
 771         state->vlan_ports[val->port_vlan] = 0;
 772         for (i = 0; i < val->len; i++) {
 773                 int bitmask = (1<<val->value.ports[i].id);
 774                 state->vlan_ports[val->port_vlan] |= bitmask;
 775                 if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
 776                         state->add_tag |= bitmask;
 777                 } else {
 778                         state->add_tag &= (~bitmask);
 779                 }
 780         }
 781
 782         correct_vlan_state(state);
 783         err = update_state(state);
 784
 785         return err;
 786 }
 787
 788 static int ip175c_apply(struct switch_dev *dev)
 789 {
 790         struct ip175c_state *state = dev->priv;
 791         int err;
 792
 793         err = get_flags(state);
 794         if (err < 0)
 795                 return err;
 796
 797         if (REG_SUPP(state->regs->MII_REGISTER_EN)){
 798                 int val = getPhy(state, state->regs->MII_REGISTER_EN);
 799                 if (val < 0) {
 800                         return val;
 801                 }
 802                 val |= (1<<state->regs->MII_REGISTER_EN_BIT);
 803                 return setPhy(state, state->regs->MII_REGISTER_EN, val);
 804         }
 805         return 0;
 806 }
 807
 808 static int ip175c_reset(struct switch_dev *dev)
 809 {
 810         struct ip175c_state *state = dev->priv;
 811         int i, err;
 812
 813         err = get_flags(state);
 814         if (err < 0)
 815                 return err;
 816
 817         if (REG_SUPP(state->regs->RESET_REG)) {
 818                 err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
 819                 if (err < 0)
 820                         return err;
 821                 err = getPhy(state, state->regs->RESET_REG);
 822
 823                 /* data sheet specifies reset period is 2 msec
 824                    (don't see any mention of the 2ms delay in the IP178C spec, only
 825                     in IP175C, but it can't hurt.) */
 826                 mdelay(2);
 827         }
 828
 829         if (REG_SUPP(state->regs->MODE_REG)) {
 830                 err = setPhy(state, state->regs->MODE_REG, state->regs->RESET_VAL);
 831                 if (err < 0)
 832                         return err;
 833                 err = getPhy(state, state->regs->MODE_REG);
 834         }
 835
 836         if (REG_SUPP(state->regs->RESET_REG)) {
 837                 /* reset external phy ports, except on IP175A */
 838                 for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
 839                         err = state->mii_bus->write(state->mii_bus, i,
 840                                                  MII_BMCR, BMCR_RESET);
 841                         if (err < 0)
 842                                 return err;
 843                 }
 844         }
 845
 846         return 0;
 847 }
 848
 849 /*! get the current register number */
 850 static int ip175c_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 851 {
 852         struct ip175c_state *state = dev->priv;
 853         int err;
 854
 855         err = get_state(state);
 856         if (err < 0)
 857                 return err;
 858
 859         if (state->add_tag & (1<<val->port_vlan)) {
 860                 if (state->remove_tag & (1<<val->port_vlan))
 861                         val->value.i = 3; // shouldn't ever happen.
 862                 else
 863                         val->value.i = 1;
 864         } else {
 865                 if (state->remove_tag & (1<<val->port_vlan))
 866                         val->value.i = 0;
 867                 else
 868                         val->value.i = 2;
 869         }
 870         return 0;
 871 }
 872
 873 /*! set a new register address for low level access to registers */
 874 static int ip175c_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 875 {
 876         struct ip175c_state *state = dev->priv;
 877         int err;
 878
 879         err = get_state(state);
 880         if (err < 0)
 881                 return err;
 882
 883         state->add_tag &= ~(1<<val->port_vlan);
 884         state->remove_tag &= ~(1<<val->port_vlan);
 885
 886         if (val->value.i == 0)
 887                 state->remove_tag |= (1<<val->port_vlan);
 888         if (val->value.i == 1)
 889                 state->add_tag |= (1<<val->port_vlan);
 890
 891         SET_PORT_BITS(state, state->add_tag,
 892                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 893         SET_PORT_BITS(state, state->remove_tag,
 894                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 895
 896         return err;
 897 }
 898
 899
 900 /* low level /proc procedures */
 901
 902 /*! get the current phy address */
 903 static int ip175c_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 904 {
 905         struct ip175c_state *state = dev->priv;
 906
 907         val->value.i = state->proc_mii.p;
 908         return 0;
 909 }
 910
 911 /*! set a new phy address for low level access to registers */
 912 static int ip175c_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 913 {
 914         struct ip175c_state *state = dev->priv;
 915         int new_reg = val->value.i;
 916
 917         if (new_reg < 0 || new_reg > 31)
 918                 state->proc_mii.p = (u16)-1;
 919         else
 920                 state->proc_mii.p = (u16)new_reg;
 921         return 0;
 922 }
 923
 924 /*! get the current register number */
 925 static int ip175c_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 926 {
 927         struct ip175c_state *state = dev->priv;
 928
 929         val->value.i = state->proc_mii.m;
 930         return 0;
 931 }
 932
 933 /*! set a new register address for low level access to registers */
 934 static int ip175c_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 935 {
 936         struct ip175c_state *state = dev->priv;
 937         int new_reg = val->value.i;
 938
 939         if (new_reg < 0 || new_reg > 31)
 940                 state->proc_mii.m = (u16)-1;
 941         else
 942                 state->proc_mii.m = (u16)new_reg;
 943         return 0;
 944 }
 945
 946 /*! get the register content of state->proc_mii */
 947 static int ip175c_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 948 {
 949         struct ip175c_state *state = dev->priv;
 950         int retval = -EINVAL;
 951         if (REG_SUPP(state->proc_mii))
 952                 retval = getPhy(state, state->proc_mii);
 953
 954         if (retval < 0) {
 955                 return retval;
 956         } else {
 957                 val->value.i = retval;
 958                 return 0;
 959         }
 960 }
 961
 962 /*! write a value to the register defined by phy/reg above */
 963 static int ip175c_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 964 {
 965         struct ip175c_state *state = dev->priv;
 966         int myval, err = 0;
 967
 968         myval = val->value.i;
 969         if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
 970                 err = setPhy(state, state->proc_mii, (u16)myval);
 971         }
 972         return err;
 973 }
 974
 975 static int ip175c_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 976 {
 977         struct ip175c_state *state = dev->priv;
 978         val->value.s = state->regs->NAME; // just a const pointer, won't be freed by swconfig.
 979         return 0;
 980 }
 981
 982
 983 static int ip175c_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 984 {
 985         struct ip175c_state *state = dev->priv;
 986         struct mii_bus *bus = state->mii_bus;
 987         int nr = val->port_vlan;
 988         int ctrl;
 989         int autoneg;
 990         int speed;
 991         if (val->value.i == 100) {
 992                 speed = 1;
 993                 autoneg = 0;
 994         } else if (val->value.i == 10) {
 995                 speed = 0;
 996                 autoneg = 0;
 997         } else {
 998                 autoneg = 1;
 999                 speed = 1;
1000         }
1001
1002         /* can't set speed for cpu port */
1003         if (nr == state->regs->CPU_PORT)
1004                 return -EINVAL;
1005
1006         if (nr >= dev->ports || nr < 0)
1007                 return -EINVAL;
1008
1009         ctrl = ip_phy_read(bus, nr, 0);
1010         if (ctrl < 0)
1011                 return -EIO;
1012
1013         ctrl &= (~(1<<12));
1014         ctrl &= (~(1<<13));
1015         ctrl |= (autoneg<<12);
1016         ctrl |= (speed<<13);
1017
1018         return ip_phy_write(bus, nr, 0, ctrl);
1019 }
1020
1021 static int ip175c_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1022 {
1023         struct ip175c_state *state = dev->priv;
1024         struct mii_bus *bus = state->mii_bus;
1025         int nr = val->port_vlan;
1026         int speed, status;
1027
1028         if (nr == state->regs->CPU_PORT) {
1029                 val->value.i = 100;
1030                 return 0;
1031         }
1032
1033         if (nr >= dev->ports || nr < 0)
1034                 return -EINVAL;
1035
1036         status = ip_phy_read(bus, nr, 1);
1037         speed = ip_phy_read(bus, nr, 18);
1038         if (status < 0 || speed < 0)
1039                 return -EIO;
1040
1041         if (status & 4)
1042                 val->value.i = ((speed & (1<<11)) ? 100 : 10);
1043         else
1044                 val->value.i = 0;
1045
1046         return 0;
1047 }
1048
1049
1050 static int ip175c_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1051 {
1052         struct ip175c_state *state = dev->priv;
1053         struct mii_bus *bus = state->mii_bus;
1054         int ctrl, speed, status;
1055         int nr = val->port_vlan;
1056         int len;
1057         char *buf = state->buf; // fixed-length at 80.
1058
1059         if (nr == state->regs->CPU_PORT) {
1060                 sprintf(buf, "up, 100 Mbps, cpu port");
1061                 val->value.s = buf;
1062                 return 0;
1063         }
1064
1065         if (nr >= dev->ports || nr < 0)
1066                 return -EINVAL;
1067
1068         ctrl = ip_phy_read(bus, nr, 0);
1069         status = ip_phy_read(bus, nr, 1);
1070         speed = ip_phy_read(bus, nr, 18);
1071         if (ctrl < 0 || status < 0 || speed < 0)
1072                 return -EIO;
1073
1074         if (status & 4)
1075                 len = sprintf(buf, "up, %d Mbps, %s duplex",
1076                         ((speed & (1<<11)) ? 100 : 10),
1077                         ((speed & (1<<10)) ? "full" : "half"));
1078         else
1079                 len = sprintf(buf, "down");
1080
1081         if (ctrl & (1<<12)) {
1082                 len += sprintf(buf+len, ", auto-negotiate");
1083                 if (!(status & (1<<5)))
1084                         len += sprintf(buf+len, " (in progress)");
1085         } else {
1086                 len += sprintf(buf+len, ", fixed speed (%d)",
1087                         ((ctrl & (1<<13)) ? 100 : 10));
1088         }
1089
1090         buf[len] = '\0';
1091         val->value.s = buf;
1092         return 0;
1093 }
1094
1095 static int ip175c_get_pvid(struct switch_dev *dev, int port, int *val)
1096 {
1097         struct ip175c_state *state = dev->priv;
1098
1099         *val = state->ports[port].pvid;
1100         return 0;
1101 }
1102
1103 static int ip175c_set_pvid(struct switch_dev *dev, int port, int val)
1104 {
1105         struct ip175c_state *state = dev->priv;
1106
1107         state->ports[port].pvid = val;
1108
1109         if (!REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[port]))
1110                 return 0;
1111
1112         return setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[port], val);
1113 }
1114
1115
1116 enum Ports {
1117         IP175C_PORT_STATUS,
1118         IP175C_PORT_LINK,
1119         IP175C_PORT_TAGGED,
1120         IP175C_PORT_PVID,
1121 };
1122
1123 enum Globals {
1124         IP175C_ENABLE_VLAN,
1125         IP175C_GET_NAME,
1126         IP175C_REGISTER_PHY,
1127         IP175C_REGISTER_MII,
1128         IP175C_REGISTER_VALUE,
1129         IP175C_REGISTER_ERRNO,
1130 };
1131
1132 static const struct switch_attr ip175c_global[] = {
1133         [IP175C_ENABLE_VLAN] = {
1134                 .id = IP175C_ENABLE_VLAN,
1135                 .type = SWITCH_TYPE_INT,
1136                 .name  = "enable_vlan",
1137                 .description = "Flag to enable or disable VLANs and tagging",
1138                 .get  = ip175c_get_enable_vlan,
1139                 .set = ip175c_set_enable_vlan,
1140         },
1141         [IP175C_GET_NAME] = {
1142                 .id = IP175C_GET_NAME,
1143                 .type = SWITCH_TYPE_STRING,
1144                 .description = "Returns the type of IC+ chip.",
1145                 .name  = "name",
1146                 .get  = ip175c_read_name,
1147                 .set = NULL,
1148         },
1149         /* jal: added for low level debugging etc. */
1150         [IP175C_REGISTER_PHY] = {
1151                 .id = IP175C_REGISTER_PHY,
1152                 .type = SWITCH_TYPE_INT,
1153                 .description = "Direct register access: set phy (0-4, or 29,30,31)",
1154                 .name  = "phy",
1155                 .get  = ip175c_get_phy,
1156                 .set = ip175c_set_phy,
1157         },
1158         [IP175C_REGISTER_MII] = {
1159                 .id = IP175C_REGISTER_MII,
1160                 .type = SWITCH_TYPE_INT,
1161                 .description = "Direct register access: set mii number (0-31)",
1162                 .name  = "reg",
1163                 .get  = ip175c_get_reg,
1164                 .set = ip175c_set_reg,
1165         },
1166         [IP175C_REGISTER_VALUE] = {
1167                 .id = IP175C_REGISTER_VALUE,
1168                 .type = SWITCH_TYPE_INT,
1169                 .description = "Direct register access: read/write to register (0-65535)",
1170                 .name  = "val",
1171                 .get  = ip175c_get_val,
1172                 .set = ip175c_set_val,
1173         },
1174 };
1175
1176 static const struct switch_attr ip175c_vlan[] = {
1177 };
1178
1179 static const struct switch_attr ip175c_port[] = {
1180         [IP175C_PORT_STATUS] = {
1181                 .id = IP175C_PORT_STATUS,
1182                 .type = SWITCH_TYPE_STRING,
1183                 .description = "Returns Detailed port status",
1184                 .name  = "status",
1185                 .get  = ip175c_get_port_status,
1186                 .set = NULL,
1187         },
1188         [IP175C_PORT_LINK] = {
1189                 .id = IP175C_PORT_LINK,
1190                 .type = SWITCH_TYPE_INT,
1191                 .description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1192                 .name  = "link",
1193                 .get  = ip175c_get_port_speed,
1194                 .set = ip175c_set_port_speed,
1195         },
1196         [IP175C_PORT_TAGGED] = {
1197                 .id = IP175C_PORT_LINK,
1198                 .type = SWITCH_TYPE_INT,
1199                 .description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1200                 .name  = "tagged",
1201                 .get  = ip175c_get_tagged,
1202                 .set = ip175c_set_tagged,
1203         },
1204 };
1205
1206 static int ip175c_probe(struct phy_device *pdev)
1207 {
1208         struct ip175c_state *state;
1209         struct switch_dev *dev;
1210         int err;
1211
1212         /* we only attach to PHY 0, but use all available PHYs */
1213         if (pdev->addr != 0)
1214                 return -ENODEV;
1215
1216         state = kzalloc(sizeof(*state), GFP_KERNEL);
1217         if (!state)
1218                 return -ENOMEM;
1219
1220         dev = &state->dev;
1221         dev->attr_global.attr = ip175c_global;
1222         dev->attr_global.n_attr = ARRAY_SIZE(ip175c_global);
1223         dev->attr_port.attr = ip175c_port;
1224         dev->attr_port.n_attr = ARRAY_SIZE(ip175c_port);
1225         dev->attr_vlan.attr = ip175c_vlan;
1226         dev->attr_vlan.n_attr = ARRAY_SIZE(ip175c_vlan);
1227
1228         dev->get_port_pvid = ip175c_get_pvid;
1229         dev->set_port_pvid = ip175c_set_pvid;
1230         dev->get_vlan_ports = ip175c_get_ports;
1231         dev->set_vlan_ports = ip175c_set_ports;
1232         dev->apply_config = ip175c_apply;
1233         dev->reset_switch = ip175c_reset;
1234
1235         dev->priv = state;
1236         pdev->priv = state;
1237         state->mii_bus = pdev->bus;
1238
1239         err = get_model(state);
1240         if (err < 0)
1241                 goto error;
1242
1243         dev->vlans = MAX_VLANS;
1244         dev->cpu_port = state->regs->CPU_PORT;
1245         dev->ports = state->regs->NUM_PORTS;
1246         dev->name = state->regs->NAME;
1247
1248         return 0;
1249
1250 error:
1251         kfree(state);
1252         return err;
1253 }
1254
1255 static int ip175c_config_init(struct phy_device *pdev)
1256 {
1257         struct ip175c_state *state = pdev->priv;
1258         struct net_device *dev = pdev->attached_dev;
1259         int err;
1260
1261         pdev->irq = PHY_IGNORE_INTERRUPT;
1262         err = register_switch(&state->dev, dev);
1263         if (err < 0)
1264                 return err;
1265
1266         ip175c_reset(&state->dev);
1267
1268         state->registered = true;
1269         netif_carrier_on(pdev->attached_dev);
1270
1271         return 0;
1272 }
1273
1274 static void ip175c_remove(struct phy_device *pdev)
1275 {
1276         struct ip175c_state *state = pdev->priv;
1277
1278         if (state->registered)
1279                 unregister_switch(&state->dev);
1280         kfree(state);
1281 }
1282
1283 static int ip175c_config_aneg(struct phy_device *pdev)
1284 {
1285         return 0;
1286 }
1287
1288 static int ip175c_read_status(struct phy_device *pdev)
1289 {
1290         pdev->speed = SPEED_100;
1291         pdev->duplex = DUPLEX_FULL;
1292         pdev->pause = pdev->asym_pause = 0;
1293         return 0;
1294 }
1295
1296 static struct phy_driver ip175c_driver = {
1297         .name           = "IC+ IP175C",
1298         .phy_id         = 0x02430d80,
1299         .phy_id_mask    = 0x0ffffff0,
1300         .features       = PHY_BASIC_FEATURES,
1301         .probe          = ip175c_probe,
1302         .remove         = ip175c_remove,
1303         .config_init    = ip175c_config_init,
1304         .config_aneg    = ip175c_config_aneg,
1305         .read_status    = ip175c_read_status,
1306         .driver         = { .owner = THIS_MODULE },
1307 };
1308
1309 static struct phy_driver ip175a_driver = {
1310         .name           = "IC+ IP175A",
1311         .phy_id         = 0x02430c50,
1312         .phy_id_mask    = 0x0ffffff0,
1313         .features       = PHY_BASIC_FEATURES,
1314         .probe          = ip175c_probe,
1315         .remove         = ip175c_remove,
1316         .config_init    = ip175c_config_init,
1317         .config_aneg    = ip175c_config_aneg,
1318         .read_status    = ip175c_read_status,
1319         .driver         = { .owner = THIS_MODULE },
1320 };
1321
1322
1323 int __init ip175c_init(void)
1324 {
1325         int ret;
1326
1327         ret = phy_driver_register(&ip175a_driver);
1328         if (ret < 0)
1329                 return ret;
1330
1331         return phy_driver_register(&ip175c_driver);
1332 }
1333
1334 void __exit ip175c_exit(void)
1335 {
1336         phy_driver_unregister(&ip175c_driver);
1337         phy_driver_unregister(&ip175a_driver);
1338 }
1339
1340 MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1341 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1342 MODULE_LICENSE("GPL");
1343
1344 module_init(ip175c_init);
1345 module_exit(ip175c_exit);
1346