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 #undef DUMP_MII_IO
  32
  33 typedef struct ip175c_reg {
  34         u16 p;                  // phy
  35         u16 m;                  // mii
  36 } reg;
  37 typedef char bitnum;
  38
  39 #define NOTSUPPORTED {-1,-1}
  40
  41 #define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
  42
  43 /*********** CONSTANTS ***********/
  44 struct register_mappings {
  45         char *NAME;
  46         u16 MODEL_NO;                   // compare to bits 4-9 of MII register 0,3.
  47         bitnum NUM_PORTS;
  48         bitnum CPU_PORT;
  49
  50 /* The default VLAN for each port.
  51          Default: 0x0001 for Ports 0,1,2,3
  52                   0x0002 for Ports 4,5 */
  53         reg VLAN_DEFAULT_TAG_REG[MAX_PORTS];
  54
  55 /* These ports are tagged.
  56          Default: 0x00 */
  57         reg ADD_TAG_REG;
  58         reg REMOVE_TAG_REG;
  59         bitnum ADD_TAG_BIT[MAX_PORTS];
  60 /* These ports are untagged.
  61          Default: 0x00 (i.e. do not alter any VLAN tags...)
  62          Maybe set to 0 if user disables VLANs. */
  63         bitnum REMOVE_TAG_BIT[MAX_PORTS];
  64
  65 /* Port M and Port N are on the same VLAN.
  66          Default: All ports on all VLANs. */
  67 // Use register {29, 19+N/2}
  68         reg VLAN_LOOKUP_REG;
  69 // Port 5 uses register {30, 18} but same as odd bits.
  70         reg VLAN_LOOKUP_REG_5;          // in a different register on IP175C.
  71         bitnum VLAN_LOOKUP_EVEN_BIT[MAX_PORTS];
  72         bitnum VLAN_LOOKUP_ODD_BIT[MAX_PORTS];
  73
  74 /* This VLAN corresponds to which ports.
  75          Default: 0x2f,0x30,0x3f,0x3f... */
  76         reg TAG_VLAN_MASK_REG;
  77         bitnum TAG_VLAN_MASK_EVEN_BIT[MAX_PORTS];
  78         bitnum TAG_VLAN_MASK_ODD_BIT[MAX_PORTS];
  79
  80         int RESET_VAL;
  81         reg RESET_REG;
  82
  83         reg MODE_REG;
  84         int MODE_VAL;
  85
  86 /* General flags */
  87         reg ROUTER_CONTROL_REG;
  88         reg VLAN_CONTROL_REG;
  89         bitnum TAG_VLAN_BIT;
  90         bitnum ROUTER_EN_BIT;
  91         bitnum NUMLAN_GROUPS_MAX;
  92         bitnum NUMLAN_GROUPS_BIT;
  93
  94         reg MII_REGISTER_EN;
  95         bitnum MII_REGISTER_EN_BIT;
  96
  97         // set to 1 for 178C, 0 for 175C.
  98         bitnum SIMPLE_VLAN_REGISTERS;   // 175C has two vlans per register but 178C has only one.
  99 };
 100
 101 static const struct register_mappings IP178C = {
 102         .NAME = "IP178C",
 103         .MODEL_NO = 0x18,
 104         .VLAN_DEFAULT_TAG_REG = {
 105                 {30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
 106                 {30,9},{30,10},{30,11},
 107         },
 108
 109         .ADD_TAG_REG = {30,12},
 110         .ADD_TAG_BIT = {0,1,2,3,4,5,6,7,8},
 111         .REMOVE_TAG_REG = {30,13},
 112         .REMOVE_TAG_BIT = {4,5,6,7,8,9,10,11,12},
 113
 114         .SIMPLE_VLAN_REGISTERS = 1,
 115
 116         .VLAN_LOOKUP_REG = {31,0},// +N
 117         .VLAN_LOOKUP_REG_5 = NOTSUPPORTED, // not used with SIMPLE_VLAN_REGISTERS
 118         .VLAN_LOOKUP_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
 119         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,5,6,7,8},
 120
 121         .TAG_VLAN_MASK_REG = {30,14}, // +N
 122         .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
 123         .TAG_VLAN_MASK_ODD_BIT = {0,1,2,3,4,5,6,7,8},
 124
 125         .RESET_VAL = 0x55AA,
 126         .RESET_REG = {30,0},
 127         .MODE_VAL = 0,
 128         .MODE_REG = NOTSUPPORTED,
 129
 130         .ROUTER_CONTROL_REG = {30,30},
 131         .ROUTER_EN_BIT = 11,
 132         .NUMLAN_GROUPS_MAX = 8,
 133         .NUMLAN_GROUPS_BIT = 8, // {0-2}
 134
 135         .VLAN_CONTROL_REG = {30,13},
 136         .TAG_VLAN_BIT = 3,
 137
 138         .CPU_PORT = 8,
 139         .NUM_PORTS = 9,
 140
 141         .MII_REGISTER_EN = NOTSUPPORTED,
 142
 143 };
 144
 145 static const struct register_mappings IP175C = {
 146         .NAME = "IP175C",
 147         .MODEL_NO = 0x18,
 148         .VLAN_DEFAULT_TAG_REG = {
 149                 {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
 150                 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
 151         },
 152
 153         .ADD_TAG_REG = {29,23},
 154         .REMOVE_TAG_REG = {29,23},
 155         .ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
 156         .REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
 157
 158         .SIMPLE_VLAN_REGISTERS = 0,
 159
 160         .VLAN_LOOKUP_REG = {29,19},// +N/2
 161         .VLAN_LOOKUP_REG_5 = {30,18},
 162         .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
 163         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
 164
 165         .TAG_VLAN_MASK_REG = {30,1}, // +N/2
 166         .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
 167         .TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
 168
 169         .RESET_VAL = 0x175C,
 170         .RESET_REG = {30,0},
 171         .MODE_VAL = 0x175C,
 172         .MODE_REG = {29,31},
 173
 174         .ROUTER_CONTROL_REG = {30,9},
 175         .ROUTER_EN_BIT = 3,
 176         .NUMLAN_GROUPS_MAX = 8,
 177         .NUMLAN_GROUPS_BIT = 0, // {0-2}
 178
 179         .VLAN_CONTROL_REG = {30,9},
 180         .TAG_VLAN_BIT = 7,
 181
 182         .NUM_PORTS = 6,
 183         .CPU_PORT = 5,
 184
 185         .MII_REGISTER_EN = NOTSUPPORTED,
 186
 187 };
 188
 189 static const struct register_mappings IP175A = {
 190         .NAME = "IP175A",
 191         .MODEL_NO = 0x05,
 192         .VLAN_DEFAULT_TAG_REG = {
 193                 {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
 194                 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
 195         },
 196
 197         .ADD_TAG_REG = {0,23},
 198         .REMOVE_TAG_REG = {0,23},
 199         .ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
 200         .REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
 201
 202         .SIMPLE_VLAN_REGISTERS = 0,
 203
 204         // Register 19-21 documentation is missing/contradictory.
 205         // For registers 19-21 ports need to be: even numbers to MSB, odd to LSB.
 206         // This contradicts text for ROM registers, but follows logic of CoS bits.
 207
 208         .VLAN_LOOKUP_REG = {0,19},// +N/2
 209         .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
 210         .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
 211         .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
 212
 213         .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
 214         .TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
 215         .TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
 216
 217         .RESET_VAL = -1,
 218         .RESET_REG = NOTSUPPORTED,
 219         .MODE_VAL = 0,
 220         .MODE_REG = NOTSUPPORTED,
 221
 222         .ROUTER_CONTROL_REG = NOTSUPPORTED,
 223         .VLAN_CONTROL_REG = NOTSUPPORTED,
 224         .TAG_VLAN_BIT = -1,
 225         .ROUTER_EN_BIT = -1,
 226         .NUMLAN_GROUPS_MAX = -1,
 227         .NUMLAN_GROUPS_BIT = -1, // {0-2}
 228
 229         .NUM_PORTS = 5,
 230         .CPU_PORT = 4,
 231
 232         .MII_REGISTER_EN = {0, 18},
 233         .MII_REGISTER_EN_BIT = 7,
 234 };
 235
 236
 237 struct ip175c_state {
 238         struct switch_dev dev;
 239         struct mii_bus *mii_bus;
 240         bool registered;
 241
 242         int router_mode;                // ROUTER_EN
 243         int vlan_enabled;               // TAG_VLAN_EN
 244         struct port_state {
 245                 u16 pvid;
 246                 unsigned int shareports;
 247         } ports[MAX_PORTS];
 248         unsigned int add_tag;
 249         unsigned int remove_tag;
 250         int num_vlans;
 251         unsigned int vlan_ports[MAX_VLANS];
 252         const struct register_mappings *regs;
 253         reg proc_mii; /*!< phy/reg for the low level register access via /proc */
 254
 255         char buf[80];
 256 };
 257
 258 static int ip_phy_read(struct ip175c_state *state, int port, int reg)
 259 {
 260         int val = mdiobus_read(state->mii_bus, port, reg);
 261         if (val < 0)
 262                 pr_warning("IP175C: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
 263 #ifdef DUMP_MII_IO
 264         else
 265                 pr_debug("IP175C: Read MII(%d,%d) -> %04x\n", port, reg, val);
 266 #endif
 267         return val;
 268 }
 269
 270
 271 static int ip_phy_write(struct ip175c_state *state, int port, int reg, u16 val)
 272 {
 273         int err;
 274
 275 #ifdef DUMP_MII_IO
 276         pr_debug("IP175C: Write MII(%d,%d) <- %04x\n", port, reg, val);
 277 #endif
 278         err = mdiobus_write(state->mii_bus, port, reg, val);
 279         if (err < 0)
 280                 pr_warning("IP175C: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
 281         return err;
 282 }
 283
 284
 285 static int ip_phy_write_masked(struct ip175c_state *state, int port, int reg, unsigned int mask, unsigned int data)
 286 {
 287         int val = ip_phy_read(state, port, reg);
 288         if (val < 0)
 289                 return 0;
 290         return ip_phy_write(state, port, reg, (val & ~mask) | data);
 291 }
 292
 293 static int getPhy(struct ip175c_state *state, reg mii)
 294 {
 295         if (!REG_SUPP(mii))
 296                 return -EFAULT;
 297         return ip_phy_read(state, mii.p, mii.m);
 298 }
 299
 300 static int setPhy(struct ip175c_state *state, reg mii, u16 value)
 301 {
 302         int err;
 303
 304         if (!REG_SUPP(mii))
 305                 return -EFAULT;
 306         err = ip_phy_write(state, mii.p, mii.m, value);
 307         if (err < 0)
 308                 return err;
 309         getPhy(state, mii);
 310         return 0;
 311 }
 312
 313 /**
 314  * These two macros are to simplify the mapping of logical bits to the bits in hardware.
 315  * NOTE: these macros will return if there is an error!
 316  */
 317
 318 #define GET_PORT_BITS(state, bits, addr, bit_lookup)            \
 319         do {                                                    \
 320                 int i, val = getPhy((state), (addr));           \
 321                 if (val < 0)                                    \
 322                         return val;                             \
 323                 (bits) = 0;                                     \
 324                 for (i = 0; i < MAX_PORTS; i++) {               \
 325                         if ((bit_lookup)[i] == -1) continue;    \
 326                         if (val & (1<<(bit_lookup)[i]))         \
 327                                 (bits) |= (1<<i);               \
 328                 }                                               \
 329         } while (0)
 330
 331 #define SET_PORT_BITS(state, bits, addr, bit_lookup)            \
 332         do {                                                    \
 333                 int i, val = getPhy((state), (addr));           \
 334                 if (val < 0)                                    \
 335                         return val;                             \
 336                 for (i = 0; i < MAX_PORTS; i++) {               \
 337                         unsigned int newmask = ((bits)&(1<<i)); \
 338                         if ((bit_lookup)[i] == -1) continue;    \
 339                         val &= ~(1<<(bit_lookup)[i]);           \
 340                         val |= ((newmask>>i)<<(bit_lookup)[i]); \
 341                 }                                               \
 342                 val = setPhy((state), (addr), val);             \
 343                 if (val < 0)                                    \
 344                         return val;                             \
 345         } while (0)
 346
 347 static int get_model(struct ip175c_state *state)
 348 {
 349         reg oui_id_reg = {0, 2};
 350         int oui_id;
 351         reg model_no_reg = {0, 3};
 352         int model_no, model_no_orig;
 353
 354         // 175 and 178 have the same oui ID.
 355         reg oui_id_reg_178c = {5, 2}; // returns error on IP175C.
 356         int is_178c = 0;
 357
 358         oui_id = getPhy(state, oui_id_reg);
 359         if (oui_id != 0x0243) {
 360                 // non
 361                 return -ENODEV; // Not a IC+ chip.
 362         }
 363         oui_id = getPhy(state, oui_id_reg_178c);
 364         if (oui_id == 0x0243) {
 365                 is_178c = 1;
 366         }
 367
 368         model_no_orig = getPhy(state, model_no_reg);
 369         if (model_no_orig < 0) {
 370                 return -ENODEV;
 371         }
 372         model_no = model_no_orig >> 4; // shift out revision number.
 373         model_no &= 0x3f; // only take the model number (low 6 bits).
 374         if (model_no == IP175A.MODEL_NO) {
 375                 state->regs = &IP175A;
 376         } else if (model_no == IP175C.MODEL_NO) {
 377                 if (is_178c) {
 378                         state->regs = &IP178C;
 379                 } else {
 380                         state->regs = &IP175C;
 381                 }
 382         } else {
 383                 printk(KERN_WARNING "ip175c: Found an unknown IC+ switch with model number %02Xh.\n", model_no_orig);
 384                 return -EPERM;
 385         }
 386         return 0;
 387 }
 388
 389 /** Get only the vlan and router flags on the router **/
 390 static int get_flags(struct ip175c_state *state)
 391 {
 392         int val;
 393
 394         state->router_mode = 0;
 395         state->vlan_enabled = -1; // hack
 396         state->num_vlans = 0;
 397
 398         if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
 399                 return 0; // not an error if it doesn't support enable vlan.
 400         }
 401
 402         val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
 403         if (val < 0) {
 404                 return val;
 405         }
 406         if (state->regs->ROUTER_EN_BIT >= 0)
 407                 state->router_mode = ((val>>state->regs->ROUTER_EN_BIT) & 1);
 408
 409         if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
 410                 state->num_vlans = (val >> state->regs->NUMLAN_GROUPS_BIT);
 411                 state->num_vlans &= (state->regs->NUMLAN_GROUPS_MAX-1);
 412                 state->num_vlans+=1; // does not include WAN.
 413         }
 414
 415
 416         val = getPhy(state, state->regs->VLAN_CONTROL_REG);
 417         if (val < 0) {
 418                 return 0;
 419         }
 420         if (state->regs->TAG_VLAN_BIT >= 0)
 421                 state->vlan_enabled = ((val>>state->regs->TAG_VLAN_BIT) & 1);
 422
 423         return  0;
 424 }
 425 /** Get all state variables for VLAN mappings and port-based tagging. **/
 426 static int get_state(struct ip175c_state *state)
 427 {
 428         int i, j;
 429         int ret;
 430         ret = get_flags(state);
 431         if (ret < 0) {
 432                 return ret;
 433         }
 434         GET_PORT_BITS(state, state->remove_tag,
 435                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 436         GET_PORT_BITS(state, state->add_tag,
 437                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 438
 439         if (state->vlan_enabled == -1) {
 440                 // not sure how to get this...
 441                 state->vlan_enabled = (state->remove_tag || state->add_tag);
 442         }
 443
 444         if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
 445         for (j=0; j<MAX_PORTS; j++) {
 446                 state->ports[j].shareports = 0; // initialize them in case.
 447         }
 448         for (j=0; j<state->regs->NUM_PORTS; j++) {
 449                 reg addr;
 450                 const bitnum *bit_lookup = (j%2==0)?
 451                         state->regs->VLAN_LOOKUP_EVEN_BIT:
 452                         state->regs->VLAN_LOOKUP_ODD_BIT;
 453                 addr = state->regs->VLAN_LOOKUP_REG;
 454                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 455                         addr.m += j;
 456                 } else {
 457                         switch (j) {
 458                         case 0:
 459                         case 1:
 460                                 break;
 461                         case 2:
 462                         case 3:
 463                                 addr.m+=1;
 464                                 break;
 465                         case 4:
 466                                 addr.m+=2;
 467                                 break;
 468                         case 5:
 469                                 addr = state->regs->VLAN_LOOKUP_REG_5;
 470                                 break;
 471                         }
 472                 }
 473
 474                 if (REG_SUPP(addr)) {
 475                         GET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
 476                 }
 477         }
 478         } else {
 479                 for (j=0; j<MAX_PORTS; j++) {
 480                         state->ports[j].shareports = 0xff;
 481                 }
 482         }
 483
 484         for (i=0; i<MAX_PORTS; i++) {
 485                 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
 486                         int val = getPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i]);
 487                         if (val < 0) {
 488                                 return val;
 489                         }
 490                         state->ports[i].pvid = val;
 491                 } else {
 492                         state->ports[i].pvid = 0;
 493                 }
 494         }
 495
 496         if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
 497                 for (j=0; j<MAX_VLANS; j++) {
 498                         reg addr = state->regs->TAG_VLAN_MASK_REG;
 499                         const bitnum *bit_lookup = (j%2==0)?
 500                                 state->regs->TAG_VLAN_MASK_EVEN_BIT:
 501                                 state->regs->TAG_VLAN_MASK_ODD_BIT;
 502                         if (state->regs->SIMPLE_VLAN_REGISTERS) {
 503                                 addr.m += j;
 504                         } else {
 505                                 addr.m += j/2;
 506                         }
 507                         GET_PORT_BITS(state, state->vlan_ports[j], addr, bit_lookup);
 508                 }
 509         } else {
 510                 for (j=0; j<MAX_VLANS; j++) {
 511                         state->vlan_ports[j] = 0;
 512                         for (i=0; i<state->regs->NUM_PORTS; i++) {
 513                                 if ((state->ports[i].pvid == j) ||
 514                                                 (state->ports[i].pvid == 0)) {
 515                                         state->vlan_ports[j] |= (1<<i);
 516                                 }
 517                         }
 518                 }
 519         }
 520
 521         return 0;
 522 }
 523
 524
 525 /** Only update vlan and router flags in the switch **/
 526 static int update_flags(struct ip175c_state *state)
 527 {
 528         int val;
 529
 530         if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
 531                 return 0;
 532         }
 533
 534         val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
 535         if (val < 0) {
 536                 return val;
 537         }
 538         if (state->regs->ROUTER_EN_BIT >= 0) {
 539                 if (state->router_mode) {
 540                         val |= (1<<state->regs->ROUTER_EN_BIT);
 541                 } else {
 542                         val &= (~(1<<state->regs->ROUTER_EN_BIT));
 543                 }
 544         }
 545         if (state->regs->TAG_VLAN_BIT >= 0) {
 546                 if (state->vlan_enabled) {
 547                         val |= (1<<state->regs->TAG_VLAN_BIT);
 548                 } else {
 549                         val &= (~(1<<state->regs->TAG_VLAN_BIT));
 550                 }
 551         }
 552         if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
 553                 val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
 554                 if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
 555                         val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
 556                 } else if (state->num_vlans >= 1) {
 557                         val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
 558                 }
 559         }
 560         return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
 561 }
 562
 563 /** Update all VLAN and port state.  Usually you should call "correct_vlan_state" first. **/
 564 static int update_state(struct ip175c_state *state)
 565 {
 566         int j;
 567         int i;
 568         SET_PORT_BITS(state, state->add_tag,
 569                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 570         SET_PORT_BITS(state, state->remove_tag,
 571                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 572
 573         if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
 574         for (j=0; j<state->regs->NUM_PORTS; j++) {
 575                 reg addr;
 576                 const bitnum *bit_lookup = (j%2==0)?
 577                         state->regs->VLAN_LOOKUP_EVEN_BIT:
 578                         state->regs->VLAN_LOOKUP_ODD_BIT;
 579
 580                 // duplicate code -- sorry
 581                 addr = state->regs->VLAN_LOOKUP_REG;
 582                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 583                         addr.m += j;
 584                 } else {
 585                         switch (j) {
 586                         case 0:
 587                         case 1:
 588                                 break;
 589                         case 2:
 590                         case 3:
 591                                 addr.m+=1;
 592                                 break;
 593                         case 4:
 594                                 addr.m+=2;
 595                                 break;
 596                         case 5:
 597                                 addr = state->regs->VLAN_LOOKUP_REG_5;
 598                                 break;
 599                         default:
 600                                 addr.m = -1; // shouldn't get here, but...
 601                                 break;
 602                         }
 603                 }
 604                 //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
 605                 if (REG_SUPP(addr)) {
 606                         SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
 607                 }
 608         }
 609         }
 610         if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
 611         for (j=0; j<MAX_VLANS; j++) {
 612                 reg addr = state->regs->TAG_VLAN_MASK_REG;
 613                 const bitnum *bit_lookup = (j%2==0)?
 614                         state->regs->TAG_VLAN_MASK_EVEN_BIT:
 615                         state->regs->TAG_VLAN_MASK_ODD_BIT;
 616                 unsigned int vlan_mask;
 617                 if (state->regs->SIMPLE_VLAN_REGISTERS) {
 618                         addr.m += j;
 619                 } else {
 620                         addr.m += j/2;
 621                 }
 622                 vlan_mask = state->vlan_ports[j];
 623                 SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
 624         }
 625         }
 626
 627         for (i=0; i<MAX_PORTS; i++) {
 628                 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
 629                         int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
 630                                         state->ports[i].pvid);
 631                         if (err < 0) {
 632                                 return err;
 633                         }
 634                 }
 635         }
 636
 637         return update_flags(state);
 638
 639         // software reset: 30.0 = 0x175C
 640         // wait 2ms
 641         // reset ports 0,1,2,3,4
 642 }
 643
 644 /*
 645   Uses only the VLAN port mask and the add tag mask to generate the other fields:
 646   which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
 647  */
 648 static void correct_vlan_state(struct ip175c_state *state)
 649 {
 650         int i, j;
 651         state->num_vlans = 0;
 652         for (i=0; i<MAX_VLANS; i++) {
 653                 if (state->vlan_ports[i] != 0) {
 654                         state->num_vlans = i+1; //hack -- we need to store the "set" vlans somewhere...
 655                 }
 656         }
 657
 658
 659
 660         for (i=0; i<state->regs->NUM_PORTS; i++) {
 661                 unsigned int portmask = (1<<i);
 662                 if (!state->vlan_enabled) {
 663                         // share with everybody!
 664                         state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
 665                         continue;
 666                 }
 667                 state->ports[i].shareports = portmask;
 668                 for (j=0; j<MAX_VLANS; j++) {
 669                         if (state->vlan_ports[j] & portmask)
 670                                 state->ports[i].shareports |= state->vlan_ports[j];
 671                 }
 672         }
 673         state->remove_tag = ((~state->add_tag) & ((1<<state->regs->NUM_PORTS)-1));
 674 }
 675
 676 static int ip175c_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 677 {
 678         struct ip175c_state *state = dev->priv;
 679         int err;
 680
 681         err = get_state(state); // may be set in get_state.
 682         if (err < 0)
 683                 return err;
 684         val->value.i = state->vlan_enabled;
 685         return 0;
 686 }
 687
 688 static int ip175c_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 689 {
 690         struct ip175c_state *state = dev->priv;
 691         int err;
 692         int enable;
 693         int i;
 694
 695         err = get_state(state);
 696         if (err < 0)
 697                 return err;
 698         enable = val->value.i;
 699
 700         if (state->vlan_enabled == enable) {
 701                 // do not change any state.
 702                 return 0;
 703         }
 704         state->vlan_enabled = enable;
 705
 706         // Otherwise, if we are switching state, set fields to a known default.
 707         state->remove_tag = 0x0000;
 708         state->add_tag = 0x0000;
 709         for (i = 0; i < MAX_PORTS; i++)
 710                 state->ports[i].shareports = 0xffff;
 711
 712         for (i = 0; i < MAX_VLANS; i++)
 713                 state->vlan_ports[i] = 0x0;
 714
 715         if (state->vlan_enabled) {
 716                 // updates other fields only based off vlan_ports and add_tag fields.
 717                 // Note that by default, no ports are in any vlans.
 718                 correct_vlan_state(state);
 719         }
 720         // ensure sane defaults?
 721         return update_state(state);
 722 }
 723
 724 static int ip175c_get_ports(struct switch_dev *dev, struct switch_val *val)
 725 {
 726         struct ip175c_state *state = dev->priv;
 727         int err;
 728         int b;
 729         int ind;
 730         unsigned int ports;
 731
 732         if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
 733                 return -EINVAL;
 734
 735         err = get_state(state);
 736         if (err<0)
 737                 return err;
 738
 739         ports = state->vlan_ports[val->port_vlan];
 740         b = 0;
 741         ind = 0;
 742         while (b < MAX_PORTS) {
 743                 if (ports&1) {
 744                         int istagged = ((state->add_tag >> b) & 1);
 745                         val->value.ports[ind].id = b;
 746                         val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
 747                         ind++;
 748                 }
 749                 b++;
 750                 ports >>= 1;
 751         }
 752         val->len = ind;
 753
 754         return 0;
 755 }
 756
 757 static int ip175c_set_ports(struct switch_dev *dev, struct switch_val *val)
 758 {
 759         struct ip175c_state *state = dev->priv;
 760         int i;
 761         int err;
 762
 763         if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
 764                 return -EINVAL;
 765
 766         err = get_state(state);
 767         if (err < 0)
 768                 return err;
 769
 770         state->vlan_ports[val->port_vlan] = 0;
 771         for (i = 0; i < val->len; i++) {
 772                 int bitmask = (1<<val->value.ports[i].id);
 773                 state->vlan_ports[val->port_vlan] |= bitmask;
 774                 if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
 775                         state->add_tag |= bitmask;
 776                 } else {
 777                         state->add_tag &= (~bitmask);
 778                 }
 779         }
 780
 781         correct_vlan_state(state);
 782         err = update_state(state);
 783
 784         return err;
 785 }
 786
 787 static int ip175c_apply(struct switch_dev *dev)
 788 {
 789         struct ip175c_state *state = dev->priv;
 790         int err;
 791
 792         err = get_flags(state);
 793         if (err < 0)
 794                 return err;
 795
 796         if (REG_SUPP(state->regs->MII_REGISTER_EN)){
 797                 int val = getPhy(state, state->regs->MII_REGISTER_EN);
 798                 if (val < 0) {
 799                         return val;
 800                 }
 801                 val |= (1<<state->regs->MII_REGISTER_EN_BIT);
 802                 return setPhy(state, state->regs->MII_REGISTER_EN, val);
 803         }
 804         return 0;
 805 }
 806
 807 static int ip175c_reset(struct switch_dev *dev)
 808 {
 809         struct ip175c_state *state = dev->priv;
 810         int i, err;
 811
 812         err = get_flags(state);
 813         if (err < 0)
 814                 return err;
 815
 816         if (REG_SUPP(state->regs->RESET_REG)) {
 817                 err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
 818                 if (err < 0)
 819                         return err;
 820                 err = getPhy(state, state->regs->RESET_REG);
 821
 822                 /* data sheet specifies reset period is 2 msec
 823                    (don't see any mention of the 2ms delay in the IP178C spec, only
 824                     in IP175C, but it can't hurt.) */
 825                 mdelay(2);
 826         }
 827
 828         if (REG_SUPP(state->regs->MODE_REG)) {
 829                 err = setPhy(state, state->regs->MODE_REG, state->regs->RESET_VAL);
 830                 if (err < 0)
 831                         return err;
 832                 err = getPhy(state, state->regs->MODE_REG);
 833         }
 834
 835         /* reset switch ports */
 836         for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
 837                 err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
 838                 if (err < 0)
 839                         return err;
 840         }
 841
 842         return 0;
 843 }
 844
 845 /*! get the current register number */
 846 static int ip175c_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 847 {
 848         struct ip175c_state *state = dev->priv;
 849         int err;
 850
 851         err = get_state(state);
 852         if (err < 0)
 853                 return err;
 854
 855         if (state->add_tag & (1<<val->port_vlan)) {
 856                 if (state->remove_tag & (1<<val->port_vlan))
 857                         val->value.i = 3; // shouldn't ever happen.
 858                 else
 859                         val->value.i = 1;
 860         } else {
 861                 if (state->remove_tag & (1<<val->port_vlan))
 862                         val->value.i = 0;
 863                 else
 864                         val->value.i = 2;
 865         }
 866         return 0;
 867 }
 868
 869 /*! set a new register address for low level access to registers */
 870 static int ip175c_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 871 {
 872         struct ip175c_state *state = dev->priv;
 873         int err;
 874
 875         err = get_state(state);
 876         if (err < 0)
 877                 return err;
 878
 879         state->add_tag &= ~(1<<val->port_vlan);
 880         state->remove_tag &= ~(1<<val->port_vlan);
 881
 882         if (val->value.i == 0)
 883                 state->remove_tag |= (1<<val->port_vlan);
 884         if (val->value.i == 1)
 885                 state->add_tag |= (1<<val->port_vlan);
 886
 887         SET_PORT_BITS(state, state->add_tag,
 888                                   state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
 889         SET_PORT_BITS(state, state->remove_tag,
 890                                   state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
 891
 892         return err;
 893 }
 894
 895
 896 /* low level /proc procedures */
 897
 898 /*! get the current phy address */
 899 static int ip175c_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 900 {
 901         struct ip175c_state *state = dev->priv;
 902
 903         val->value.i = state->proc_mii.p;
 904         return 0;
 905 }
 906
 907 /*! set a new phy address for low level access to registers */
 908 static int ip175c_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 909 {
 910         struct ip175c_state *state = dev->priv;
 911         int new_reg = val->value.i;
 912
 913         if (new_reg < 0 || new_reg > 31)
 914                 state->proc_mii.p = (u16)-1;
 915         else
 916                 state->proc_mii.p = (u16)new_reg;
 917         return 0;
 918 }
 919
 920 /*! get the current register number */
 921 static int ip175c_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 922 {
 923         struct ip175c_state *state = dev->priv;
 924
 925         val->value.i = state->proc_mii.m;
 926         return 0;
 927 }
 928
 929 /*! set a new register address for low level access to registers */
 930 static int ip175c_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 931 {
 932         struct ip175c_state *state = dev->priv;
 933         int new_reg = val->value.i;
 934
 935         if (new_reg < 0 || new_reg > 31)
 936                 state->proc_mii.m = (u16)-1;
 937         else
 938                 state->proc_mii.m = (u16)new_reg;
 939         return 0;
 940 }
 941
 942 /*! get the register content of state->proc_mii */
 943 static int ip175c_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 944 {
 945         struct ip175c_state *state = dev->priv;
 946         int retval = -EINVAL;
 947         if (REG_SUPP(state->proc_mii))
 948                 retval = getPhy(state, state->proc_mii);
 949
 950         if (retval < 0) {
 951                 return retval;
 952         } else {
 953                 val->value.i = retval;
 954                 return 0;
 955         }
 956 }
 957
 958 /*! write a value to the register defined by phy/reg above */
 959 static int ip175c_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 960 {
 961         struct ip175c_state *state = dev->priv;
 962         int myval, err = 0;
 963
 964         myval = val->value.i;
 965         if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
 966                 err = setPhy(state, state->proc_mii, (u16)myval);
 967         }
 968         return err;
 969 }
 970
 971 static int ip175c_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 972 {
 973         struct ip175c_state *state = dev->priv;
 974         val->value.s = state->regs->NAME; // just a const pointer, won't be freed by swconfig.
 975         return 0;
 976 }
 977
 978
 979 static int ip175c_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 980 {
 981         struct ip175c_state *state = dev->priv;
 982         int nr = val->port_vlan;
 983         int ctrl;
 984         int autoneg;
 985         int speed;
 986         if (val->value.i == 100) {
 987                 speed = 1;
 988                 autoneg = 0;
 989         } else if (val->value.i == 10) {
 990                 speed = 0;
 991                 autoneg = 0;
 992         } else {
 993                 autoneg = 1;
 994                 speed = 1;
 995         }
 996
 997         /* can't set speed for cpu port */
 998         if (nr == state->regs->CPU_PORT)
 999                 return -EINVAL;
1000
1001         if (nr >= dev->ports || nr < 0)
1002                 return -EINVAL;
1003
1004         ctrl = ip_phy_read(state, nr, 0);
1005         if (ctrl < 0)
1006                 return -EIO;
1007
1008         ctrl &= (~(1<<12));
1009         ctrl &= (~(1<<13));
1010         ctrl |= (autoneg<<12);
1011         ctrl |= (speed<<13);
1012
1013         return ip_phy_write(state, nr, 0, ctrl);
1014 }
1015
1016 static int ip175c_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1017 {
1018         struct ip175c_state *state = dev->priv;
1019         int nr = val->port_vlan;
1020         int speed, status;
1021
1022         if (nr == state->regs->CPU_PORT) {
1023                 val->value.i = 100;
1024                 return 0;
1025         }
1026
1027         if (nr >= dev->ports || nr < 0)
1028                 return -EINVAL;
1029
1030         status = ip_phy_read(state, nr, 1);
1031         speed = ip_phy_read(state, nr, 18);
1032         if (status < 0 || speed < 0)
1033                 return -EIO;
1034
1035         if (status & 4)
1036                 val->value.i = ((speed & (1<<11)) ? 100 : 10);
1037         else
1038                 val->value.i = 0;
1039
1040         return 0;
1041 }
1042
1043
1044 static int ip175c_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1045 {
1046         struct ip175c_state *state = dev->priv;
1047         int ctrl, speed, status;
1048         int nr = val->port_vlan;
1049         int len;
1050         char *buf = state->buf; // fixed-length at 80.
1051
1052         if (nr == state->regs->CPU_PORT) {
1053                 sprintf(buf, "up, 100 Mbps, cpu port");
1054                 val->value.s = buf;
1055                 return 0;
1056         }
1057
1058         if (nr >= dev->ports || nr < 0)
1059                 return -EINVAL;
1060
1061         ctrl = ip_phy_read(state, nr, 0);
1062         status = ip_phy_read(state, nr, 1);
1063         speed = ip_phy_read(state, nr, 18);
1064         if (ctrl < 0 || status < 0 || speed < 0)
1065                 return -EIO;
1066
1067         if (status & 4)
1068                 len = sprintf(buf, "up, %d Mbps, %s duplex",
1069                         ((speed & (1<<11)) ? 100 : 10),
1070                         ((speed & (1<<10)) ? "full" : "half"));
1071         else
1072                 len = sprintf(buf, "down");
1073
1074         if (ctrl & (1<<12)) {
1075                 len += sprintf(buf+len, ", auto-negotiate");
1076                 if (!(status & (1<<5)))
1077                         len += sprintf(buf+len, " (in progress)");
1078         } else {
1079                 len += sprintf(buf+len, ", fixed speed (%d)",
1080                         ((ctrl & (1<<13)) ? 100 : 10));
1081         }
1082
1083         buf[len] = '\0';
1084         val->value.s = buf;
1085         return 0;
1086 }
1087
1088 static int ip175c_get_pvid(struct switch_dev *dev, int port, int *val)
1089 {
1090         struct ip175c_state *state = dev->priv;
1091
1092         *val = state->ports[port].pvid;
1093         return 0;
1094 }
1095
1096 static int ip175c_set_pvid(struct switch_dev *dev, int port, int val)
1097 {
1098         struct ip175c_state *state = dev->priv;
1099
1100         state->ports[port].pvid = val;
1101
1102         if (!REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[port]))
1103                 return 0;
1104
1105         return setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[port], val);
1106 }
1107
1108
1109 enum Ports {
1110         IP175C_PORT_STATUS,
1111         IP175C_PORT_LINK,
1112         IP175C_PORT_TAGGED,
1113         IP175C_PORT_PVID,
1114 };
1115
1116 enum Globals {
1117         IP175C_ENABLE_VLAN,
1118         IP175C_GET_NAME,
1119         IP175C_REGISTER_PHY,
1120         IP175C_REGISTER_MII,
1121         IP175C_REGISTER_VALUE,
1122         IP175C_REGISTER_ERRNO,
1123 };
1124
1125 static const struct switch_attr ip175c_global[] = {
1126         [IP175C_ENABLE_VLAN] = {
1127                 .id = IP175C_ENABLE_VLAN,
1128                 .type = SWITCH_TYPE_INT,
1129                 .name  = "enable_vlan",
1130                 .description = "Flag to enable or disable VLANs and tagging",
1131                 .get  = ip175c_get_enable_vlan,
1132                 .set = ip175c_set_enable_vlan,
1133         },
1134         [IP175C_GET_NAME] = {
1135                 .id = IP175C_GET_NAME,
1136                 .type = SWITCH_TYPE_STRING,
1137                 .description = "Returns the type of IC+ chip.",
1138                 .name  = "name",
1139                 .get  = ip175c_read_name,
1140                 .set = NULL,
1141         },
1142         /* jal: added for low level debugging etc. */
1143         [IP175C_REGISTER_PHY] = {
1144                 .id = IP175C_REGISTER_PHY,
1145                 .type = SWITCH_TYPE_INT,
1146                 .description = "Direct register access: set phy (0-4, or 29,30,31)",
1147                 .name  = "phy",
1148                 .get  = ip175c_get_phy,
1149                 .set = ip175c_set_phy,
1150         },
1151         [IP175C_REGISTER_MII] = {
1152                 .id = IP175C_REGISTER_MII,
1153                 .type = SWITCH_TYPE_INT,
1154                 .description = "Direct register access: set mii number (0-31)",
1155                 .name  = "reg",
1156                 .get  = ip175c_get_reg,
1157                 .set = ip175c_set_reg,
1158         },
1159         [IP175C_REGISTER_VALUE] = {
1160                 .id = IP175C_REGISTER_VALUE,
1161                 .type = SWITCH_TYPE_INT,
1162                 .description = "Direct register access: read/write to register (0-65535)",
1163                 .name  = "val",
1164                 .get  = ip175c_get_val,
1165                 .set = ip175c_set_val,
1166         },
1167 };
1168
1169 static const struct switch_attr ip175c_vlan[] = {
1170 };
1171
1172 static const struct switch_attr ip175c_port[] = {
1173         [IP175C_PORT_STATUS] = {
1174                 .id = IP175C_PORT_STATUS,
1175                 .type = SWITCH_TYPE_STRING,
1176                 .description = "Returns Detailed port status",
1177                 .name  = "status",
1178                 .get  = ip175c_get_port_status,
1179                 .set = NULL,
1180         },
1181         [IP175C_PORT_LINK] = {
1182                 .id = IP175C_PORT_LINK,
1183                 .type = SWITCH_TYPE_INT,
1184                 .description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1185                 .name  = "link",
1186                 .get  = ip175c_get_port_speed,
1187                 .set = ip175c_set_port_speed,
1188         },
1189         [IP175C_PORT_TAGGED] = {
1190                 .id = IP175C_PORT_LINK,
1191                 .type = SWITCH_TYPE_INT,
1192                 .description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1193                 .name  = "tagged",
1194                 .get  = ip175c_get_tagged,
1195                 .set = ip175c_set_tagged,
1196         },
1197 };
1198
1199 static int ip175c_probe(struct phy_device *pdev)
1200 {
1201         struct ip175c_state *state;
1202         struct switch_dev *dev;
1203         int err;
1204
1205         /* we only attach to PHY 0, but use all available PHYs */
1206         if (pdev->addr != 0)
1207                 return -ENODEV;
1208
1209         state = kzalloc(sizeof(*state), GFP_KERNEL);
1210         if (!state)
1211                 return -ENOMEM;
1212
1213         dev = &state->dev;
1214         dev->attr_global.attr = ip175c_global;
1215         dev->attr_global.n_attr = ARRAY_SIZE(ip175c_global);
1216         dev->attr_port.attr = ip175c_port;
1217         dev->attr_port.n_attr = ARRAY_SIZE(ip175c_port);
1218         dev->attr_vlan.attr = ip175c_vlan;
1219         dev->attr_vlan.n_attr = ARRAY_SIZE(ip175c_vlan);
1220
1221         dev->get_port_pvid = ip175c_get_pvid;
1222         dev->set_port_pvid = ip175c_set_pvid;
1223         dev->get_vlan_ports = ip175c_get_ports;
1224         dev->set_vlan_ports = ip175c_set_ports;
1225         dev->apply_config = ip175c_apply;
1226         dev->reset_switch = ip175c_reset;
1227
1228         dev->priv = state;
1229         pdev->priv = state;
1230         state->mii_bus = pdev->bus;
1231
1232         err = get_model(state);
1233         if (err < 0)
1234                 goto error;
1235
1236         dev->vlans = MAX_VLANS;
1237         dev->cpu_port = state->regs->CPU_PORT;
1238         dev->ports = state->regs->NUM_PORTS;
1239         dev->name = state->regs->NAME;
1240
1241         return 0;
1242
1243 error:
1244         kfree(state);
1245         return err;
1246 }
1247
1248 static int ip175c_config_init(struct phy_device *pdev)
1249 {
1250         struct ip175c_state *state = pdev->priv;
1251         struct net_device *dev = pdev->attached_dev;
1252         int err;
1253
1254         pdev->irq = PHY_IGNORE_INTERRUPT;
1255         err = register_switch(&state->dev, dev);
1256         if (err < 0)
1257                 return err;
1258
1259         ip175c_reset(&state->dev);
1260
1261         state->registered = true;
1262         netif_carrier_on(pdev->attached_dev);
1263
1264         return 0;
1265 }
1266
1267 static void ip175c_remove(struct phy_device *pdev)
1268 {
1269         struct ip175c_state *state = pdev->priv;
1270
1271         if (state->registered)
1272                 unregister_switch(&state->dev);
1273         kfree(state);
1274 }
1275
1276 static int ip175c_config_aneg(struct phy_device *pdev)
1277 {
1278         return 0;
1279 }
1280
1281 static int ip175c_read_status(struct phy_device *pdev)
1282 {
1283         pdev->speed = SPEED_100;
1284         pdev->duplex = DUPLEX_FULL;
1285         pdev->pause = pdev->asym_pause = 0;
1286         return 0;
1287 }
1288
1289 static struct phy_driver ip175c_driver = {
1290         .name           = "IC+ IP175C",
1291         .phy_id         = 0x02430d80,
1292         .phy_id_mask    = 0x0ffffff0,
1293         .features       = PHY_BASIC_FEATURES,
1294         .probe          = ip175c_probe,
1295         .remove         = ip175c_remove,
1296         .config_init    = ip175c_config_init,
1297         .config_aneg    = ip175c_config_aneg,
1298         .read_status    = ip175c_read_status,
1299         .driver         = { .owner = THIS_MODULE },
1300 };
1301
1302 static struct phy_driver ip175a_driver = {
1303         .name           = "IC+ IP175A",
1304         .phy_id         = 0x02430c50,
1305         .phy_id_mask    = 0x0ffffff0,
1306         .features       = PHY_BASIC_FEATURES,
1307         .probe          = ip175c_probe,
1308         .remove         = ip175c_remove,
1309         .config_init    = ip175c_config_init,
1310         .config_aneg    = ip175c_config_aneg,
1311         .read_status    = ip175c_read_status,
1312         .driver         = { .owner = THIS_MODULE },
1313 };
1314
1315
1316 int __init ip175c_init(void)
1317 {
1318         int ret;
1319
1320         ret = phy_driver_register(&ip175a_driver);
1321         if (ret < 0)
1322                 return ret;
1323
1324         return phy_driver_register(&ip175c_driver);
1325 }
1326
1327 void __exit ip175c_exit(void)
1328 {
1329         phy_driver_unregister(&ip175c_driver);
1330         phy_driver_unregister(&ip175a_driver);
1331 }
1332
1333 MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1334 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1335 MODULE_LICENSE("GPL");
1336
1337 module_init(ip175c_init);
1338 module_exit(ip175c_exit);
1339