include/asm-ppc/4xx_pcie.h

   1 /*
   2  * Copyright (c) 2005 Cisco Systems.  All rights reserved.
   3  * Roland Dreier <rolandd@cisco.com>
   4  *
   5  * This program is free software; you can redistribute  it and/or modify it
   6  * under  the terms of  the GNU General  Public License as published by the
   7  * Free Software Foundation;  either version 2 of the  License, or (at your
   8  * option) any later version.
   9  */
  10
  11 #include <ppc4xx.h>
  12 #ifndef __4XX_PCIE_H
  13 #define __4XX_PCIE_H
  14
  15 #define DCRN_SDR0_CFGADDR       0x00e
  16 #define DCRN_SDR0_CFGDATA       0x00f
  17
  18 #if defined(CONFIG_440SPE)
  19 #define CFG_PCIE_NR_PORTS       3
  20
  21 #define CFG_PCIE_ADDR_HIGH      0x0000000d
  22
  23 #define DCRN_PCIE0_BASE         0x100
  24 #define DCRN_PCIE1_BASE         0x120
  25 #define DCRN_PCIE2_BASE         0x140
  26
  27 #define PCIE0_SDR               0x300
  28 #define PCIE1_SDR               0x340
  29 #define PCIE2_SDR               0x370
  30 #endif
  31
  32 #if defined(CONFIG_460EX) || defined(CONFIG_460GT)
  33 #define CFG_PCIE_NR_PORTS       2
  34
  35 #define CFG_PCIE_ADDR_HIGH      0x0000000d
  36
  37 #define DCRN_PCIE0_BASE         0x100
  38 #define DCRN_PCIE1_BASE         0x120
  39
  40 #define PCIE0_SDR               0x300
  41 #define PCIE1_SDR               0x340
  42 #endif
  43
  44 #if defined(CONFIG_405EX)
  45 #define CFG_PCIE_NR_PORTS       2
  46
  47 #define CFG_PCIE_ADDR_HIGH      0x00000000
  48
  49 #define DCRN_PCIE0_BASE         0x040
  50 #define DCRN_PCIE1_BASE         0x060
  51
  52 #define PCIE0_SDR               0x400
  53 #define PCIE1_SDR               0x440
  54 #endif
  55
  56 #define PCIE0                   DCRN_PCIE0_BASE
  57 #define PCIE1                   DCRN_PCIE1_BASE
  58 #define PCIE2                   DCRN_PCIE2_BASE
  59
  60 #define DCRN_PEGPL_CFGBAH(base)         (base + 0x00)
  61 #define DCRN_PEGPL_CFGBAL(base)         (base + 0x01)
  62 #define DCRN_PEGPL_CFGMSK(base)         (base + 0x02)
  63 #define DCRN_PEGPL_MSGBAH(base)         (base + 0x03)
  64 #define DCRN_PEGPL_MSGBAL(base)         (base + 0x04)
  65 #define DCRN_PEGPL_MSGMSK(base)         (base + 0x05)
  66 #define DCRN_PEGPL_OMR1BAH(base)        (base + 0x06)
  67 #define DCRN_PEGPL_OMR1BAL(base)        (base + 0x07)
  68 #define DCRN_PEGPL_OMR1MSKH(base)       (base + 0x08)
  69 #define DCRN_PEGPL_OMR1MSKL(base)       (base + 0x09)
  70 #define DCRN_PEGPL_REGBAH(base)         (base + 0x12)
  71 #define DCRN_PEGPL_REGBAL(base)         (base + 0x13)
  72 #define DCRN_PEGPL_REGMSK(base)         (base + 0x14)
  73 #define DCRN_PEGPL_SPECIAL(base)        (base + 0x15)
  74 #define DCRN_PEGPL_CFG(base)            (base + 0x16)
  75
  76 /*
  77  * System DCRs (SDRs)
  78  */
  79 #define PESDR0_PLLLCT1          0x03a0
  80 #define PESDR0_PLLLCT2          0x03a1
  81 #define PESDR0_PLLLCT3          0x03a2
  82
  83 /* common regs, at for all 4xx with PCIe core */
  84 #define SDRN_PESDR_UTLSET1(n)           (sdr_base(n) + 0x00)
  85 #define SDRN_PESDR_UTLSET2(n)           (sdr_base(n) + 0x01)
  86 #define SDRN_PESDR_DLPSET(n)            (sdr_base(n) + 0x02)
  87 #define SDRN_PESDR_LOOP(n)              (sdr_base(n) + 0x03)
  88 #define SDRN_PESDR_RCSSET(n)            (sdr_base(n) + 0x04)
  89 #define SDRN_PESDR_RCSSTS(n)            (sdr_base(n) + 0x05)
  90
  91 #if defined(CONFIG_440SPE)
  92 #define SDRN_PESDR_HSSL0SET1(n)         (sdr_base(n) + 0x06)
  93 #define SDRN_PESDR_HSSL0SET2(n)         (sdr_base(n) + 0x07)
  94 #define SDRN_PESDR_HSSL0STS(n)          (sdr_base(n) + 0x08)
  95 #define SDRN_PESDR_HSSL1SET1(n)         (sdr_base(n) + 0x09)
  96 #define SDRN_PESDR_HSSL1SET2(n)         (sdr_base(n) + 0x0a)
  97 #define SDRN_PESDR_HSSL1STS(n)          (sdr_base(n) + 0x0b)
  98 #define SDRN_PESDR_HSSL2SET1(n)         (sdr_base(n) + 0x0c)
  99 #define SDRN_PESDR_HSSL2SET2(n)         (sdr_base(n) + 0x0d)
 100 #define SDRN_PESDR_HSSL2STS(n)          (sdr_base(n) + 0x0e)
 101 #define SDRN_PESDR_HSSL3SET1(n)         (sdr_base(n) + 0x0f)
 102 #define SDRN_PESDR_HSSL3SET2(n)         (sdr_base(n) + 0x10)
 103 #define SDRN_PESDR_HSSL3STS(n)          (sdr_base(n) + 0x11)
 104
 105 #define PESDR0_UTLSET1          0x0300
 106 #define PESDR0_UTLSET2          0x0301
 107 #define PESDR0_DLPSET           0x0302
 108 #define PESDR0_LOOP             0x0303
 109 #define PESDR0_RCSSET           0x0304
 110 #define PESDR0_RCSSTS           0x0305
 111 #define PESDR0_HSSL0SET1        0x0306
 112 #define PESDR0_HSSL0SET2        0x0307
 113 #define PESDR0_HSSL0STS         0x0308
 114 #define PESDR0_HSSL1SET1        0x0309
 115 #define PESDR0_HSSL1SET2        0x030a
 116 #define PESDR0_HSSL1STS         0x030b
 117 #define PESDR0_HSSL2SET1        0x030c
 118 #define PESDR0_HSSL2SET2        0x030d
 119 #define PESDR0_HSSL2STS         0x030e
 120 #define PESDR0_HSSL3SET1        0x030f
 121 #define PESDR0_HSSL3SET2        0x0310
 122 #define PESDR0_HSSL3STS         0x0311
 123 #define PESDR0_HSSL4SET1        0x0312
 124 #define PESDR0_HSSL4SET2        0x0313
 125 #define PESDR0_HSSL4STS         0x0314
 126 #define PESDR0_HSSL5SET1        0x0315
 127 #define PESDR0_HSSL5SET2        0x0316
 128 #define PESDR0_HSSL5STS         0x0317
 129 #define PESDR0_HSSL6SET1        0x0318
 130 #define PESDR0_HSSL6SET2        0x0319
 131 #define PESDR0_HSSL6STS         0x031a
 132 #define PESDR0_HSSL7SET1        0x031b
 133 #define PESDR0_HSSL7SET2        0x031c
 134 #define PESDR0_HSSL7STS         0x031d
 135 #define PESDR0_HSSCTLSET        0x031e
 136 #define PESDR0_LANE_ABCD        0x031f
 137 #define PESDR0_LANE_EFGH        0x0320
 138
 139 #define PESDR1_UTLSET1          0x0340
 140 #define PESDR1_UTLSET2          0x0341
 141 #define PESDR1_DLPSET           0x0342
 142 #define PESDR1_LOOP             0x0343
 143 #define PESDR1_RCSSET           0x0344
 144 #define PESDR1_RCSSTS           0x0345
 145 #define PESDR1_HSSL0SET1        0x0346
 146 #define PESDR1_HSSL0SET2        0x0347
 147 #define PESDR1_HSSL0STS         0x0348
 148 #define PESDR1_HSSL1SET1        0x0349
 149 #define PESDR1_HSSL1SET2        0x034a
 150 #define PESDR1_HSSL1STS         0x034b
 151 #define PESDR1_HSSL2SET1        0x034c
 152 #define PESDR1_HSSL2SET2        0x034d
 153 #define PESDR1_HSSL2STS         0x034e
 154 #define PESDR1_HSSL3SET1        0x034f
 155 #define PESDR1_HSSL3SET2        0x0350
 156 #define PESDR1_HSSL3STS         0x0351
 157 #define PESDR1_HSSCTLSET        0x0352
 158 #define PESDR1_LANE_ABCD        0x0353
 159
 160 #define PESDR2_UTLSET1          0x0370
 161 #define PESDR2_UTLSET2          0x0371
 162 #define PESDR2_DLPSET           0x0372
 163 #define PESDR2_LOOP             0x0373
 164 #define PESDR2_RCSSET           0x0374
 165 #define PESDR2_RCSSTS           0x0375
 166 #define PESDR2_HSSL0SET1        0x0376
 167 #define PESDR2_HSSL0SET2        0x0377
 168 #define PESDR2_HSSL0STS         0x0378
 169 #define PESDR2_HSSL1SET1        0x0379
 170 #define PESDR2_HSSL1SET2        0x037a
 171 #define PESDR2_HSSL1STS         0x037b
 172 #define PESDR2_HSSL2SET1        0x037c
 173 #define PESDR2_HSSL2SET2        0x037d
 174 #define PESDR2_HSSL2STS         0x037e
 175 #define PESDR2_HSSL3SET1        0x037f
 176 #define PESDR2_HSSL3SET2        0x0380
 177 #define PESDR2_HSSL3STS         0x0381
 178 #define PESDR2_HSSCTLSET        0x0382
 179 #define PESDR2_LANE_ABCD        0x0383
 180
 181 #elif defined(CONFIG_405EX)
 182
 183 #define SDRN_PESDR_PHYSET1(n)           (sdr_base(n) + 0x06)
 184 #define SDRN_PESDR_PHYSET2(n)           (sdr_base(n) + 0x07)
 185 #define SDRN_PESDR_BIST(n)              (sdr_base(n) + 0x08)
 186 #define SDRN_PESDR_LPB(n)               (sdr_base(n) + 0x0b)
 187 #define SDRN_PESDR_PHYSTA(n)            (sdr_base(n) + 0x0c)
 188
 189 #define PESDR0_UTLSET1          0x0400
 190 #define PESDR0_UTLSET2          0x0401
 191 #define PESDR0_DLPSET           0x0402
 192 #define PESDR0_LOOP             0x0403
 193 #define PESDR0_RCSSET           0x0404
 194 #define PESDR0_RCSSTS           0x0405
 195 #define PESDR0_PHYSET1          0x0406
 196 #define PESDR0_PHYSET2          0x0407
 197 #define PESDR0_BIST             0x0408
 198 #define PESDR0_LPB              0x040B
 199 #define PESDR0_PHYSTA           0x040C
 200
 201 #define PESDR1_UTLSET1          0x0440
 202 #define PESDR1_UTLSET2          0x0441
 203 #define PESDR1_DLPSET           0x0442
 204 #define PESDR1_LOOP             0x0443
 205 #define PESDR1_RCSSET           0x0444
 206 #define PESDR1_RCSSTS           0x0445
 207 #define PESDR1_PHYSET1          0x0446
 208 #define PESDR1_PHYSET2          0x0447
 209 #define PESDR1_BIST             0x0448
 210 #define PESDR1_LPB              0x044B
 211 #define PESDR1_PHYSTA           0x044C
 212
 213 #elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
 214
 215 #define PESDR0_L0BIST           0x0308  /* PE0 L0 built in self test */
 216 #define PESDR0_L0BISTSTS        0x0309  /* PE0 L0 built in self test status */
 217 #define PESDR0_L0CDRCTL         0x030A  /* PE0 L0 CDR control */
 218 #define PESDR0_L0DRV            0x030B  /* PE0 L0 drive */
 219 #define PESDR0_L0REC            0x030C  /* PE0 L0 receiver */
 220 #define PESDR0_L0LPB            0x030D  /* PE0 L0 loopback */
 221 #define PESDR0_L0CLK            0x030E  /* PE0 L0 clocking */
 222 #define PESDR0_PHY_CTL_RST      0x030F  /* PE0 PHY control reset */
 223 #define PESDR0_RSTSTA           0x0310  /* PE0 reset status */
 224 #define PESDR0_OBS              0x0311  /* PE0 observation register */
 225 #define PESDR0_L0ERRC           0x0320  /* PE0 L0 error counter */
 226
 227 #define PESDR1_L0BIST           0x0348  /* PE1 L0 built in self test */
 228 #define PESDR1_L1BIST           0x0349  /* PE1 L1 built in self test */
 229 #define PESDR1_L2BIST           0x034A  /* PE1 L2 built in self test */
 230 #define PESDR1_L3BIST           0x034B  /* PE1 L3 built in self test */
 231 #define PESDR1_L0BISTSTS        0x034C  /* PE1 L0 built in self test status */
 232 #define PESDR1_L1BISTSTS        0x034D  /* PE1 L1 built in self test status */
 233 #define PESDR1_L2BISTSTS        0x034E  /* PE1 L2 built in self test status */
 234 #define PESDR1_L3BISTSTS        0x034F  /* PE1 L3 built in self test status */
 235 #define PESDR1_L0CDRCTL         0x0350  /* PE1 L0 CDR control */
 236 #define PESDR1_L1CDRCTL         0x0351  /* PE1 L1 CDR control */
 237 #define PESDR1_L2CDRCTL         0x0352  /* PE1 L2 CDR control */
 238 #define PESDR1_L3CDRCTL         0x0353  /* PE1 L3 CDR control */
 239 #define PESDR1_L0DRV            0x0354  /* PE1 L0 drive */
 240 #define PESDR1_L1DRV            0x0355  /* PE1 L1 drive */
 241 #define PESDR1_L2DRV            0x0356  /* PE1 L2 drive */
 242 #define PESDR1_L3DRV            0x0357  /* PE1 L3 drive */
 243 #define PESDR1_L0REC            0x0358  /* PE1 L0 receiver */
 244 #define PESDR1_L1REC            0x0359  /* PE1 L1 receiver */
 245 #define PESDR1_L2REC            0x035A  /* PE1 L2 receiver */
 246 #define PESDR1_L3REC            0x035B  /* PE1 L3 receiver */
 247 #define PESDR1_L0LPB            0x035C  /* PE1 L0 loopback */
 248 #define PESDR1_L1LPB            0x035D  /* PE1 L1 loopback */
 249 #define PESDR1_L2LPB            0x035E  /* PE1 L2 loopback */
 250 #define PESDR1_L3LPB            0x035F  /* PE1 L3 loopback */
 251 #define PESDR1_L0CLK            0x0360  /* PE1 L0 clocking */
 252 #define PESDR1_L1CLK            0x0361  /* PE1 L1 clocking */
 253 #define PESDR1_L2CLK            0x0362  /* PE1 L2 clocking */
 254 #define PESDR1_L3CLK            0x0363  /* PE1 L3 clocking */
 255 #define PESDR1_PHY_CTL_RST      0x0364  /* PE1 PHY control reset */
 256 #define PESDR1_RSTSTA           0x0365  /* PE1 reset status */
 257 #define PESDR1_OBS              0x0366  /* PE1 observation register */
 258 #define PESDR1_L0ERRC           0x0368  /* PE1 L0 error counter */
 259 #define PESDR1_L1ERRC           0x0369  /* PE1 L1 error counter */
 260 #define PESDR1_L2ERRC           0x036A  /* PE1 L2 error counter */
 261 #define PESDR1_L3ERRC           0x036B  /* PE1 L3 error counter */
 262 #define PESDR0_IHS1             0x036C  /* PE interrupt handler interfact setting 1 */
 263 #define PESDR0_IHS2             0x036D  /* PE interrupt handler interfact setting 2 */
 264
 265 #endif
 266
 267 /* SDR Bit Mappings */
 268 #define PESDRx_RCSSET_HLDPLB    0x10000000
 269 #define PESDRx_RCSSET_RSTGU     0x01000000
 270 #define PESDRx_RCSSET_RDY       0x00100000
 271 #define PESDRx_RCSSET_RSTDL     0x00010000
 272 #define PESDRx_RCSSET_RSTPYN    0x00001000
 273
 274 #define PESDRx_RCSSTS_PLBIDL    0x10000000
 275 #define PESDRx_RCSSTS_HRSTRQ    0x01000000
 276 #define PESDRx_RCSSTS_PGRST     0x00100000
 277 #define PESDRx_RCSSTS_VC0ACT    0x00010000
 278 #define PESDRx_RCSSTS_BMEN      0x00000100
 279
 280 /*
 281  * UTL register offsets
 282  */
 283 #define PEUTL_PBCTL             0x00
 284 #define PEUTL_PBBSZ             0x20
 285 #define PEUTL_OPDBSZ            0x68
 286 #define PEUTL_IPHBSZ            0x70
 287 #define PEUTL_IPDBSZ            0x78
 288 #define PEUTL_OUTTR             0x90
 289 #define PEUTL_INTR              0x98
 290 #define PEUTL_PCTL              0xa0
 291 #define PEUTL_RCSTA             0xb0
 292 #define PEUTL_RCIRQEN           0xb8
 293
 294 /*
 295  * Config space register offsets
 296  */
 297 #define PECFG_BAR0LMPA          0x210
 298 #define PECFG_BAR0HMPA          0x214
 299 #define PECFG_BAR1MPA           0x218
 300 #define PECFG_BAR2LMPA          0x220
 301 #define PECFG_BAR2HMPA          0x224
 302
 303 #define PECFG_PIMEN             0x33c
 304 #define PECFG_PIM0LAL           0x340
 305 #define PECFG_PIM0LAH           0x344
 306 #define PECFG_PIM1LAL           0x348
 307 #define PECFG_PIM1LAH           0x34c
 308 #define PECFG_PIM01SAL          0x350
 309 #define PECFG_PIM01SAH          0x354
 310
 311 #define PECFG_POM0LAL           0x380
 312 #define PECFG_POM0LAH           0x384
 313
 314 #define SDR_READ(offset) ({\
 315         mtdcr(DCRN_SDR0_CFGADDR, offset); \
 316         mfdcr(DCRN_SDR0_CFGDATA);})
 317
 318 #define SDR_WRITE(offset, data) ({\
 319         mtdcr(DCRN_SDR0_CFGADDR, offset); \
 320         mtdcr(DCRN_SDR0_CFGDATA,data);})
 321
 322 #define GPL_DMER_MASK_DISA      0x02000000
 323
 324 #define U64_TO_U32_LOW(val)     ((u32)((val) & 0x00000000ffffffffULL))
 325 #define U64_TO_U32_HIGH(val)    ((u32)((val) >> 32))
 326
 327 /*
 328  * Prototypes
 329  */
 330 int ppc4xx_init_pcie(void);
 331 int ppc4xx_init_pcie_rootport(int port);
 332 int ppc4xx_init_pcie_endport(int port);
 333 void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port);
 334 int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port);
 335 int pcie_hose_scan(struct pci_controller *hose, int bus);
 336
 337 /*
 338  * Function to determine root port or endport from env variable.
 339  */
 340 static inline int is_end_point(int port)
 341 {
 342         char s[10], *tk;
 343         char *pcie_mode = getenv("pcie_mode");
 344
 345         if (pcie_mode == NULL)
 346                 return 0;
 347
 348         strcpy(s, pcie_mode);
 349         tk = strtok(s, ":");
 350
 351         switch (port) {
 352         case 0:
 353                 if (tk != NULL) {
 354                         if (!(strcmp(tk, "ep") && strcmp(tk, "EP")))
 355                                 return 1;
 356                         else
 357                                 return 0;
 358                 }
 359                 else
 360                         return 0;
 361
 362         case 1:
 363                 tk = strtok(NULL, ":");
 364                 if (tk != NULL) {
 365                         if (!(strcmp(tk, "ep") && strcmp(tk, "EP")))
 366                                 return 1;
 367                         else
 368                                 return 0;
 369                 }
 370                 else
 371                         return 0;
 372
 373         case 2:
 374                 tk = strtok(NULL, ":");
 375                 if (tk != NULL)
 376                         tk = strtok(NULL, ":");
 377                 if (tk != NULL) {
 378                         if (!(strcmp(tk, "ep") && strcmp(tk, "EP")))
 379                                 return 1;
 380                         else
 381                                 return 0;
 382                 }
 383                 else
 384                         return 0;
 385         }
 386
 387         return 0;
 388 }
 389
 390 static inline void mdelay(int n)
 391 {
 392         u32 ms = n;
 393
 394         while (ms--)
 395                 udelay(1000);
 396 }
 397
 398 static inline u32 sdr_base(int port)
 399 {
 400         switch (port) {
 401         default:        /* to satisfy compiler */
 402         case 0:
 403                 return PCIE0_SDR;
 404         case 1:
 405                 return PCIE1_SDR;
 406 #if CFG_PCIE_NR_PORTS > 2
 407         case 2:
 408                 return PCIE2_SDR;
 409 #endif
 410         }
 411 }
 412
 413 #endif /* __4XX_PCIE_H */