common/cmd_mii.c

   1 /*
   2  * (C) Copyright 2001
   3  * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   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 as
  10  * published by the Free Software Foundation; either version 2 of
  11  * 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  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * MII Utilities
  26  */
  27
  28 #include <common.h>
  29 #include <command.h>
  30
  31 #if (CONFIG_COMMANDS & CFG_CMD_MII)
  32 #include <miiphy.h>
  33
  34 #ifdef CONFIG_TERSE_MII
  35 /*
  36  * Display values from last command.
  37  */
  38 uint last_op;
  39 uint last_addr;
  40 uint last_data;
  41 uint last_reg;
  42
  43 /*
  44  * MII device/info/read/write
  45  *
  46  * Syntax:
  47  *  mii device {devname}
  48  *  mii info   {addr}
  49  *  mii read   {addr} {reg}
  50  *  mii write  {addr} {reg} {data}
  51  */
  52 int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
  53 {
  54         char            op;
  55         unsigned char   addr, reg;
  56         unsigned short  data;
  57         int             rcode = 0;
  58         char            *devname;
  59
  60 #if defined(CONFIG_8xx) || defined(CONFIG_MCF52x2)
  61         mii_init ();
  62 #endif
  63
  64         /*
  65          * We use the last specified parameters, unless new ones are
  66          * entered.
  67          */
  68         op   = last_op;
  69         addr = last_addr;
  70         data = last_data;
  71         reg  = last_reg;
  72
  73         if ((flag & CMD_FLAG_REPEAT) == 0) {
  74                 op = argv[1][0];
  75                 if (argc >= 3)
  76                         addr = simple_strtoul (argv[2], NULL, 16);
  77                 if (argc >= 4)
  78                         reg  = simple_strtoul (argv[3], NULL, 16);
  79                 if (argc >= 5)
  80                         data = simple_strtoul (argv[4], NULL, 16);
  81         }
  82
  83         /* use current device */
  84         devname = miiphy_get_current_dev();
  85
  86         /*
  87          * check device/read/write/list.
  88          */
  89         if (op == 'i') {
  90                 unsigned char j, start, end;
  91                 unsigned int oui;
  92                 unsigned char model;
  93                 unsigned char rev;
  94
  95                 /*
  96                  * Look for any and all PHYs.  Valid addresses are 0..31.
  97                  */
  98                 if (argc >= 3) {
  99                         start = addr; end = addr + 1;
 100                 } else {
 101                         start = 0; end = 31;
 102                 }
 103
 104                 for (j = start; j < end; j++) {
 105                         if (miiphy_info (devname, j, &oui, &model, &rev) == 0) {
 106                                 printf ("PHY 0x%02X: "
 107                                         "OUI = 0x%04X, "
 108                                         "Model = 0x%02X, "
 109                                         "Rev = 0x%02X, "
 110                                         "%3dbaseT, %s\n",
 111                                         j, oui, model, rev,
 112                                         miiphy_speed (devname, j),
 113                                         (miiphy_duplex (devname, j) == FULL)
 114                                                 ? "FDX" : "HDX");
 115                         } else {
 116                                 puts ("Error reading info from the PHY\n");
 117                         }
 118                 }
 119         } else if (op == 'r') {
 120                 if (miiphy_read (devname, addr, reg, &data) != 0) {
 121                         puts ("Error reading from the PHY\n");
 122                         rcode = 1;
 123                 } else {
 124                         printf ("%04X\n", data & 0x0000FFFF);
 125                 }
 126         } else if (op == 'w') {
 127                 if (miiphy_write (devname, addr, reg, data) != 0) {
 128                         puts ("Error writing to the PHY\n");
 129                         rcode = 1;
 130                 }
 131         } else if (op == 'd') {
 132                 if (argc == 2)
 133                         miiphy_listdev ();
 134                 else
 135                         miiphy_set_current_dev (argv[2]);
 136         } else {
 137                 printf ("Usage:\n%s\n", cmdtp->usage);
 138                 return 1;
 139         }
 140
 141         /*
 142          * Save the parameters for repeats.
 143          */
 144         last_op = op;
 145         last_addr = addr;
 146         last_data = data;
 147         last_reg = reg;
 148
 149         return rcode;
 150 }
 151
 152 /***************************************************/
 153
 154 U_BOOT_CMD(
 155         mii,    5,      1,      do_mii,
 156         "mii     - MII utility commands\n",
 157         "device                     - list available devices\n"
 158         "mii device <devname>           - set current device\n"
 159         "mii info   <addr>              - display MII PHY info\n"
 160         "mii read   <addr> <reg>        - read  MII PHY <addr> register <reg>\n"
 161         "mii write  <addr> <reg> <data> - write MII PHY <addr> register <reg>\n"
 162 );
 163
 164 #else /* ! CONFIG_TERSE_MII ================================================= */
 165
 166 typedef struct _MII_reg_desc_t {
 167         ushort regno;
 168         char * name;
 169 } MII_reg_desc_t;
 170
 171 MII_reg_desc_t reg_0_5_desc_tbl[] = {
 172         { 0,   "PHY control register"                },
 173         { 1,   "PHY status register"                 },
 174         { 2,   "PHY ID 1 register"                   },
 175         { 3,   "PHY ID 2 register"                   },
 176         { 4,   "Autonegotiation advertisement register" },
 177         { 5,   "Autonegotiation partner abilities register" },
 178 };
 179
 180 typedef struct _MII_field_desc_t {
 181         ushort hi;
 182         ushort lo;
 183         ushort mask;
 184         char * name;
 185 } MII_field_desc_t;
 186
 187 MII_field_desc_t reg_0_desc_tbl[] = {
 188         { 15, 15, 0x01, "reset"                        },
 189         { 14, 14, 0x01, "loopback"                     },
 190         { 13,  6, 0x81, "speed selection"              }, /* special */
 191         { 12, 12, 0x01, "A/N enable"                   },
 192         { 11, 11, 0x01, "power-down"                   },
 193         { 10, 10, 0x01, "isolate"                      },
 194         {  9,  9, 0x01, "restart A/N"                  },
 195         {  8,  8, 0x01, "duplex"                       }, /* special */
 196         {  7,  7, 0x01, "collision test enable"        },
 197         {  5,  0, 0x3f, "(reserved)"                   }
 198 };
 199
 200 MII_field_desc_t reg_1_desc_tbl[] = {
 201         { 15, 15, 0x01, "100BASE-T4 able"              },
 202         { 14, 14, 0x01, "100BASE-X  full duplex able"  },
 203         { 13, 13, 0x01, "100BASE-X  half duplex able"  },
 204         { 12, 12, 0x01, "10 Mbps    full duplex able"  },
 205         { 11, 11, 0x01, "10 Mbps    half duplex able"  },
 206         { 10, 10, 0x01, "100BASE-T2 full duplex able"  },
 207         {  9,  9, 0x01, "100BASE-T2 half duplex able"  },
 208         {  8,  8, 0x01, "extended status"              },
 209         {  7,  7, 0x01, "(reserved)"                   },
 210         {  6,  6, 0x01, "MF preamble suppression"      },
 211         {  5,  5, 0x01, "A/N complete"                 },
 212         {  4,  4, 0x01, "remote fault"                 },
 213         {  3,  3, 0x01, "A/N able"                     },
 214         {  2,  2, 0x01, "link status"                  },
 215         {  1,  1, 0x01, "jabber detect"                },
 216         {  0,  0, 0x01, "extended capabilities"        },
 217 };
 218
 219 MII_field_desc_t reg_2_desc_tbl[] = {
 220         { 15,  0, 0xffff, "OUI portion"                },
 221 };
 222
 223 MII_field_desc_t reg_3_desc_tbl[] = {
 224         { 15, 10, 0x3f, "OUI portion"                },
 225         {  9,  4, 0x3f, "manufacturer part number"   },
 226         {  3,  0, 0x0f, "manufacturer rev. number"   },
 227 };
 228
 229 MII_field_desc_t reg_4_desc_tbl[] = {
 230         { 15, 15, 0x01, "next page able"               },
 231         { 14, 14, 0x01, "reserved"                     },
 232         { 13, 13, 0x01, "remote fault"                 },
 233         { 12, 12, 0x01, "reserved"                     },
 234         { 11, 11, 0x01, "asymmetric pause"             },
 235         { 10, 10, 0x01, "pause enable"                 },
 236         {  9,  9, 0x01, "100BASE-T4 able"              },
 237         {  8,  8, 0x01, "100BASE-TX full duplex able"  },
 238         {  7,  7, 0x01, "100BASE-TX able"              },
 239         {  6,  6, 0x01, "10BASE-T   full duplex able"  },
 240         {  5,  5, 0x01, "10BASE-T   able"              },
 241         {  4,  0, 0x1f, "xxx to do"                    },
 242 };
 243
 244 MII_field_desc_t reg_5_desc_tbl[] = {
 245         { 15, 15, 0x01, "next page able"               },
 246         { 14, 14, 0x01, "acknowledge"                  },
 247         { 13, 13, 0x01, "remote fault"                 },
 248         { 12, 12, 0x01, "(reserved)"                   },
 249         { 11, 11, 0x01, "asymmetric pause able"        },
 250         { 10, 10, 0x01, "pause able"                   },
 251         {  9,  9, 0x01, "100BASE-T4 able"              },
 252         {  8,  8, 0x01, "100BASE-X full duplex able"   },
 253         {  7,  7, 0x01, "100BASE-TX able"              },
 254         {  6,  6, 0x01, "10BASE-T full duplex able"    },
 255         {  5,  5, 0x01, "10BASE-T able"                },
 256         {  4,  0, 0x1f, "xxx to do"                    },
 257 };
 258
 259 #define DESC0LEN (sizeof(reg_0_desc_tbl)/sizeof(reg_0_desc_tbl[0]))
 260 #define DESC1LEN (sizeof(reg_1_desc_tbl)/sizeof(reg_1_desc_tbl[0]))
 261 #define DESC2LEN (sizeof(reg_2_desc_tbl)/sizeof(reg_2_desc_tbl[0]))
 262 #define DESC3LEN (sizeof(reg_3_desc_tbl)/sizeof(reg_3_desc_tbl[0]))
 263 #define DESC4LEN (sizeof(reg_4_desc_tbl)/sizeof(reg_4_desc_tbl[0]))
 264 #define DESC5LEN (sizeof(reg_5_desc_tbl)/sizeof(reg_5_desc_tbl[0]))
 265
 266 typedef struct _MII_field_desc_and_len_t {
 267         MII_field_desc_t * pdesc;
 268         ushort len;
 269 } MII_field_desc_and_len_t;
 270
 271 MII_field_desc_and_len_t desc_and_len_tbl[] = {
 272         { reg_0_desc_tbl, DESC0LEN },
 273         { reg_1_desc_tbl, DESC1LEN },
 274         { reg_2_desc_tbl, DESC2LEN },
 275         { reg_3_desc_tbl, DESC3LEN },
 276         { reg_4_desc_tbl, DESC4LEN },
 277         { reg_5_desc_tbl, DESC5LEN },
 278 };
 279
 280 static void dump_reg(
 281         ushort             regval,
 282         MII_reg_desc_t   * prd,
 283         MII_field_desc_and_len_t * pdl);
 284
 285 static int special_field(
 286         ushort regno,
 287         MII_field_desc_t * pdesc,
 288         ushort regval);
 289
 290 void MII_dump_0_to_5(
 291         ushort regvals[6],
 292         uchar reglo,
 293         uchar reghi)
 294 {
 295         ulong i;
 296
 297         for (i = 0; i < 6; i++) {
 298                 if ((reglo <= i) && (i <= reghi))
 299                         dump_reg(regvals[i], &reg_0_5_desc_tbl[i],
 300                                 &desc_and_len_tbl[i]);
 301         }
 302 }
 303
 304 static void dump_reg(
 305         ushort             regval,
 306         MII_reg_desc_t   * prd,
 307         MII_field_desc_and_len_t * pdl)
 308 {
 309         ulong i;
 310         ushort mask_in_place;
 311         MII_field_desc_t * pdesc;
 312
 313         printf("%u.     (%04hx)                 -- %s --\n",
 314                 prd->regno, regval, prd->name);
 315
 316         for (i = 0; i < pdl->len; i++) {
 317                 pdesc = &pdl->pdesc[i];
 318
 319                 mask_in_place = pdesc->mask << pdesc->lo;
 320
 321                 printf("  (%04hx:%04hx) %u.",
 322                         mask_in_place,
 323                         regval & mask_in_place,
 324                         prd->regno);
 325
 326                 if (special_field(prd->regno, pdesc, regval)) {
 327                 }
 328                 else {
 329                         if (pdesc->hi == pdesc->lo)
 330                                 printf("%2u   ", pdesc->lo);
 331                         else
 332                                 printf("%2u-%2u", pdesc->hi, pdesc->lo);
 333                         printf(" = %5u    %s",
 334                                 (regval & mask_in_place) >> pdesc->lo,
 335                                 pdesc->name);
 336                 }
 337                 printf("\n");
 338
 339         }
 340         printf("\n");
 341 }
 342
 343 /* Special fields:
 344 ** 0.6,13
 345 ** 0.8
 346 ** 2.15-0
 347 ** 3.15-0
 348 ** 4.4-0
 349 ** 5.4-0
 350 */
 351
 352 static int special_field(
 353         ushort regno,
 354         MII_field_desc_t * pdesc,
 355         ushort regval)
 356 {
 357         if ((regno == 0) && (pdesc->lo == 6)) {
 358                 ushort speed_bits = regval & PHY_BMCR_SPEED_MASK;
 359                 printf("%2u,%2u =   b%u%u    speed selection = %s Mbps",
 360                         6, 13,
 361                         (regval >>  6) & 1,
 362                         (regval >> 13) & 1,
 363                         speed_bits == PHY_BMCR_1000_MBPS ? "1000" :
 364                         speed_bits == PHY_BMCR_100_MBPS  ? "100" :
 365                         speed_bits == PHY_BMCR_10_MBPS   ? "10" :
 366                         "???");
 367                 return 1;
 368         }
 369
 370         else if ((regno == 0) && (pdesc->lo == 8)) {
 371                 printf("%2u    = %5u    duplex = %s",
 372                         pdesc->lo,
 373                         (regval >>  pdesc->lo) & 1,
 374                         ((regval >> pdesc->lo) & 1) ? "full" : "half");
 375                 return 1;
 376         }
 377
 378         else if ((regno == 4) && (pdesc->lo == 0)) {
 379                 ushort sel_bits = (regval >> pdesc->lo) & pdesc->mask;
 380                 printf("%2u-%2u = %5u    selector = %s",
 381                         pdesc->hi, pdesc->lo, sel_bits,
 382                         sel_bits == PHY_ANLPAR_PSB_802_3 ?
 383                                 "IEEE 802.3" :
 384                         sel_bits == PHY_ANLPAR_PSB_802_9 ?
 385                                 "IEEE 802.9 ISLAN-16T" :
 386                         "???");
 387                 return 1;
 388         }
 389
 390         else if ((regno == 5) && (pdesc->lo == 0)) {
 391                 ushort sel_bits = (regval >> pdesc->lo) & pdesc->mask;
 392                 printf("%2u-%2u =     %u    selector = %s",
 393                         pdesc->hi, pdesc->lo, sel_bits,
 394                         sel_bits == PHY_ANLPAR_PSB_802_3 ?
 395                                 "IEEE 802.3" :
 396                         sel_bits == PHY_ANLPAR_PSB_802_9 ?
 397                                 "IEEE 802.9 ISLAN-16T" :
 398                         "???");
 399                 return 1;
 400         }
 401
 402         return 0;
 403 }
 404
 405 char last_op[2];
 406 uint last_data;
 407 uint last_addr_lo;
 408 uint last_addr_hi;
 409 uint last_reg_lo;
 410 uint last_reg_hi;
 411
 412 static void extract_range(
 413         char * input,
 414         unsigned char * plo,
 415         unsigned char * phi)
 416 {
 417         char * end;
 418         *plo = simple_strtoul(input, &end, 16);
 419         if (*end == '-') {
 420                 end++;
 421                 *phi = simple_strtoul(end, NULL, 16);
 422         }
 423         else {
 424                 *phi = *plo;
 425         }
 426 }
 427
 428 /* ---------------------------------------------------------------- */
 429 int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 430 {
 431         char            op[2];
 432         unsigned char   addrlo, addrhi, reglo, reghi;
 433         unsigned char   addr, reg;
 434         unsigned short  data;
 435         int             rcode = 0;
 436         char            *devname;
 437
 438 #ifdef CONFIG_8xx
 439         mii_init ();
 440 #endif
 441
 442         /*
 443          * We use the last specified parameters, unless new ones are
 444          * entered.
 445          */
 446         op[0] = last_op[0];
 447         op[1] = last_op[1];
 448         addrlo = last_addr_lo;
 449         addrhi = last_addr_hi;
 450         reglo  = last_reg_lo;
 451         reghi  = last_reg_hi;
 452         data   = last_data;
 453
 454         if ((flag & CMD_FLAG_REPEAT) == 0) {
 455                 op[0] = argv[1][0];
 456                 if (strlen(argv[1]) > 1)
 457                         op[1] = argv[1][1];
 458                 else
 459                         op[1] = '\0';
 460
 461                 if (argc >= 3)
 462                         extract_range(argv[2], &addrlo, &addrhi);
 463                 if (argc >= 4)
 464                         extract_range(argv[3], &reglo, &reghi);
 465                 if (argc >= 5)
 466                         data = simple_strtoul (argv[4], NULL, 16);
 467         }
 468
 469         /* use current device */
 470         devname = miiphy_get_current_dev();
 471
 472         /*
 473          * check info/read/write.
 474          */
 475         if (op[0] == 'i') {
 476                 unsigned char j, start, end;
 477                 unsigned int oui;
 478                 unsigned char model;
 479                 unsigned char rev;
 480
 481                 /*
 482                  * Look for any and all PHYs.  Valid addresses are 0..31.
 483                  */
 484                 if (argc >= 3) {
 485                         start = addrlo; end = addrhi;
 486                 } else {
 487                         start = 0; end = 31;
 488                 }
 489
 490                 for (j = start; j <= end; j++) {
 491                         if (miiphy_info (devname, j, &oui, &model, &rev) == 0) {
 492                                 printf("PHY 0x%02X: "
 493                                         "OUI = 0x%04X, "
 494                                         "Model = 0x%02X, "
 495                                         "Rev = 0x%02X, "
 496                                         "%3dbaseT, %s\n",
 497                                         j, oui, model, rev,
 498                                         miiphy_speed (devname, j),
 499                                         (miiphy_duplex (devname, j) == FULL)
 500                                                 ? "FDX" : "HDX");
 501                         } else {
 502                                 puts ("Error reading info from the PHY\n");
 503                         }
 504                 }
 505         } else if (op[0] == 'r') {
 506                 for (addr = addrlo; addr <= addrhi; addr++) {
 507                         for (reg = reglo; reg <= reghi; reg++) {
 508                                 data = 0xffff;
 509                                 if (miiphy_read (devname, addr, reg, &data) != 0) {
 510                                         printf(
 511                                         "Error reading from the PHY addr=%02x reg=%02x\n",
 512                                                 addr, reg);
 513                                         rcode = 1;
 514                                 } else {
 515                                         if ((addrlo != addrhi) || (reglo != reghi))
 516                                                 printf("addr=%02x reg=%02x data=",
 517                                                         (uint)addr, (uint)reg);
 518                                         printf("%04X\n", data & 0x0000FFFF);
 519                                 }
 520                         }
 521                         if ((addrlo != addrhi) && (reglo != reghi))
 522                                 printf("\n");
 523                 }
 524         } else if (op[0] == 'w') {
 525                 for (addr = addrlo; addr <= addrhi; addr++) {
 526                         for (reg = reglo; reg <= reghi; reg++) {
 527                                 if (miiphy_write (devname, addr, reg, data) != 0) {
 528                                         printf("Error writing to the PHY addr=%02x reg=%02x\n",
 529                                                 addr, reg);
 530                                         rcode = 1;
 531                                 }
 532                         }
 533                 }
 534         } else if (strncmp(op, "du", 2) == 0) {
 535                 ushort regs[6];
 536                 int ok = 1;
 537                 if ((reglo > 5) || (reghi > 5)) {
 538                         printf(
 539                                 "The MII dump command only formats the "
 540                                 "standard MII registers, 0-5.\n");
 541                         return 1;
 542                 }
 543                 for (addr = addrlo; addr <= addrhi; addr++) {
 544                         for (reg = reglo; reg < reghi + 1; reg++) {
 545                                 if (miiphy_read(devname, addr, reg, &regs[reg]) != 0) {
 546                                         ok = 0;
 547                                         printf(
 548                                         "Error reading from the PHY addr=%02x reg=%02x\n",
 549                                                 addr, reg);
 550                                         rcode = 1;
 551                                 }
 552                         }
 553                         if (ok)
 554                                 MII_dump_0_to_5(regs, reglo, reghi);
 555                         printf("\n");
 556                 }
 557         } else if (strncmp(op, "de", 2) == 0) {
 558                 if (argc == 2)
 559                         miiphy_listdev ();
 560                 else
 561                         miiphy_set_current_dev (argv[2]);
 562         } else {
 563                 printf("Usage:\n%s\n", cmdtp->usage);
 564                 return 1;
 565         }
 566
 567         /*
 568          * Save the parameters for repeats.
 569          */
 570         last_op[0] = op[0];
 571         last_op[1] = op[1];
 572         last_addr_lo = addrlo;
 573         last_addr_hi = addrhi;
 574         last_reg_lo  = reglo;
 575         last_reg_hi  = reghi;
 576         last_data    = data;
 577
 578         return rcode;
 579 }
 580
 581 /***************************************************/
 582
 583 U_BOOT_CMD(
 584         mii,    5,      1,      do_mii,
 585         "mii     - MII utility commands\n",
 586         "device                     - list available devices\n"
 587         "mii device <devname>           - set current device\n"
 588         "mii info   <addr>              - display MII PHY info\n"
 589         "mii read   <addr> <reg>        - read  MII PHY <addr> register <reg>\n"
 590         "mii write  <addr> <reg> <data> - write MII PHY <addr> register <reg>\n"
 591         "mii dump   <addr> <reg>        - pretty-print <addr> <reg> (0-5 only)\n"
 592         "Addr and/or reg may be ranges, e.g. 2-7.\n"
 593 );
 594
 595 #endif /* CONFIG_TERSE_MII */
 596
 597 #endif /* CFG_CMD_MII */