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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 | /* * MPC8xx Communication Processor Module. * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) * * This file contains structures and information for the communication * processor channels. Some CPM control and status is available * throught the MPC8xx internal memory map. See immap.h for details. * This file only contains what I need for the moment, not the total * CPM capabilities. I (or someone else) will add definitions as they * are needed. -- Dan * * On the MBX board, EPPC-Bug loads CPM microcode into the first 512 * bytes of the DP RAM and relocates the I2C parameter area to the * IDMA1 space. The remaining DP RAM is available for buffer descriptors * or other use. */ #ifndef __CPM_8XX__ #define __CPM_8XX__ #include <linux/config.h> #include <asm/8xx_immap.h> #include <asm/ptrace.h> /* CPM Command register. */ #define CPM_CR_RST ((ushort)0x8000) #define CPM_CR_OPCODE ((ushort)0x0f00) #define CPM_CR_CHAN ((ushort)0x00f0) #define CPM_CR_FLG ((ushort)0x0001) /* Some commands (there are more...later) */ #define CPM_CR_INIT_TRX ((ushort)0x0000) #define CPM_CR_INIT_RX ((ushort)0x0001) #define CPM_CR_INIT_TX ((ushort)0x0002) #define CPM_CR_HUNT_MODE ((ushort)0x0003) #define CPM_CR_STOP_TX ((ushort)0x0004) #define CPM_CR_RESTART_TX ((ushort)0x0006) #define CPM_CR_CLOSE_RX_BD ((ushort)0x0007) #define CPM_CR_SET_GADDR ((ushort)0x0008) #define CPM_CR_SET_TIMER CPM_CR_SET_GADDR /* Channel numbers. */ #define CPM_CR_CH_SCC1 ((ushort)0x0000) #define CPM_CR_CH_I2C ((ushort)0x0001) /* I2C and IDMA1 */ #define CPM_CR_CH_SCC2 ((ushort)0x0004) #define CPM_CR_CH_SPI ((ushort)0x0005) /* SPI / IDMA2 / Timers */ #define CPM_CR_CH_TIMER CPM_CR_CH_SPI #define CPM_CR_CH_SCC3 ((ushort)0x0008) #define CPM_CR_CH_SMC1 ((ushort)0x0009) /* SMC1 / DSP1 */ #define CPM_CR_CH_SCC4 ((ushort)0x000c) #define CPM_CR_CH_SMC2 ((ushort)0x000d) /* SMC2 / DSP2 */ #define mk_cr_cmd(CH, CMD) ((CMD << 8) | (CH << 4)) /* The dual ported RAM is multi-functional. Some areas can be (and are * being) used for microcode. There is an area that can only be used * as data ram for buffer descriptors, which is all we use right now. * Currently the first 512 and last 256 bytes are used for microcode. */ #define CPM_DATAONLY_BASE ((uint)0x0800) #define CPM_DATAONLY_SIZE ((uint)0x0700) #define CPM_DP_NOSPACE ((uint)0x7fffffff) static inline long IS_DPERR(const uint offset) { return (uint)offset > (uint)-1000L; } /* Export the base address of the communication processor registers * and dual port ram. */ extern cpm8xx_t *cpmp; /* Pointer to comm processor */ extern uint cpm_dpalloc(uint size, uint align); extern int cpm_dpfree(uint offset); extern uint cpm_dpalloc_fixed(uint offset, uint size, uint align); extern void cpm_dpdump(void); extern void *cpm_dpram_addr(uint offset); extern void cpm_setbrg(uint brg, uint rate); extern uint m8xx_cpm_hostalloc(uint size); extern int m8xx_cpm_hostfree(uint start); extern void m8xx_cpm_hostdump(void); /* Buffer descriptors used by many of the CPM protocols. */ typedef struct cpm_buf_desc { ushort cbd_sc; /* Status and Control */ ushort cbd_datlen; /* Data length in buffer */ uint cbd_bufaddr; /* Buffer address in host memory */ } cbd_t; #define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */ #define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */ #define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */ #define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */ #define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */ #define BD_SC_TC ((ushort)0x0400) /* Transmit CRC */ #define BD_SC_CM ((ushort)0x0200) /* Continous mode */ #define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */ #define BD_SC_P ((ushort)0x0100) /* xmt preamble */ #define BD_SC_BR ((ushort)0x0020) /* Break received */ #define BD_SC_FR ((ushort)0x0010) /* Framing error */ #define BD_SC_PR ((ushort)0x0008) /* Parity error */ #define BD_SC_NAK ((ushort)0x0004) /* NAK - did not respond */ #define BD_SC_OV ((ushort)0x0002) /* Overrun */ #define BD_SC_UN ((ushort)0x0002) /* Underrun */ #define BD_SC_CD ((ushort)0x0001) /* ?? */ #define BD_SC_CL ((ushort)0x0001) /* Collision */ /* Parameter RAM offsets. */ #define PROFF_SCC1 ((uint)0x0000) #define PROFF_IIC ((uint)0x0080) #define PROFF_SCC2 ((uint)0x0100) #define PROFF_SPI ((uint)0x0180) #define PROFF_SCC3 ((uint)0x0200) #define PROFF_SMC1 ((uint)0x0280) #define PROFF_SCC4 ((uint)0x0300) #define PROFF_SMC2 ((uint)0x0380) /* Define enough so I can at least use the serial port as a UART. * The MBX uses SMC1 as the host serial port. */ typedef struct smc_uart { ushort smc_rbase; /* Rx Buffer descriptor base address */ ushort smc_tbase; /* Tx Buffer descriptor base address */ u_char smc_rfcr; /* Rx function code */ u_char smc_tfcr; /* Tx function code */ ushort smc_mrblr; /* Max receive buffer length */ uint smc_rstate; /* Internal */ uint smc_idp; /* Internal */ ushort smc_rbptr; /* Internal */ ushort smc_ibc; /* Internal */ uint smc_rxtmp; /* Internal */ uint smc_tstate; /* Internal */ uint smc_tdp; /* Internal */ ushort smc_tbptr; /* Internal */ ushort smc_tbc; /* Internal */ uint smc_txtmp; /* Internal */ ushort smc_maxidl; /* Maximum idle characters */ ushort smc_tmpidl; /* Temporary idle counter */ ushort smc_brklen; /* Last received break length */ ushort smc_brkec; /* rcv'd break condition counter */ ushort smc_brkcr; /* xmt break count register */ ushort smc_rmask; /* Temporary bit mask */ char res1[8]; /* Reserved */ ushort smc_rpbase; /* Relocation pointer */ } smc_uart_t; /* Function code bits. */ #define SMC_EB ((u_char)0x10) /* Set big endian byte order */ /* SMC uart mode register. */ #define SMCMR_REN ((ushort)0x0001) #define SMCMR_TEN ((ushort)0x0002) #define SMCMR_DM ((ushort)0x000c) #define SMCMR_SM_GCI ((ushort)0x0000) #define SMCMR_SM_UART ((ushort)0x0020) #define SMCMR_SM_TRANS ((ushort)0x0030) #define SMCMR_SM_MASK ((ushort)0x0030) #define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */ #define SMCMR_REVD SMCMR_PM_EVEN #define SMCMR_PEN ((ushort)0x0200) /* Parity enable */ #define SMCMR_BS SMCMR_PEN #define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */ #define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */ #define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK) /* SMC2 as Centronics parallel printer. It is half duplex, in that * it can only receive or transmit. The parameter ram values for * each direction are either unique or properly overlap, so we can * include them in one structure. */ typedef struct smc_centronics { ushort scent_rbase; ushort scent_tbase; u_char scent_cfcr; u_char scent_smask; ushort scent_mrblr; uint scent_rstate; uint scent_r_ptr; ushort scent_rbptr; ushort scent_r_cnt; uint scent_rtemp; uint scent_tstate; uint scent_t_ptr; ushort scent_tbptr; ushort scent_t_cnt; uint scent_ttemp; ushort scent_max_sl; ushort scent_sl_cnt; ushort scent_character1; ushort scent_character2; ushort scent_character3; ushort scent_character4; ushort scent_character5; ushort scent_character6; ushort scent_character7; ushort scent_character8; ushort scent_rccm; ushort scent_rccr; } smc_cent_t; /* Centronics Status Mask Register. */ #define SMC_CENT_F ((u_char)0x08) #define SMC_CENT_PE ((u_char)0x04) #define SMC_CENT_S ((u_char)0x02) /* SMC Event and Mask register. */ #define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */ #define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */ #define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */ #define SMCM_BSY ((unsigned char)0x04) #define SMCM_TX ((unsigned char)0x02) #define SMCM_RX ((unsigned char)0x01) /* Baud rate generators. */ #define CPM_BRG_RST ((uint)0x00020000) #define CPM_BRG_EN ((uint)0x00010000) #define CPM_BRG_EXTC_INT ((uint)0x00000000) #define CPM_BRG_EXTC_CLK2 ((uint)0x00004000) #define CPM_BRG_EXTC_CLK6 ((uint)0x00008000) #define CPM_BRG_ATB ((uint)0x00002000) #define CPM_BRG_CD_MASK ((uint)0x00001ffe) #define CPM_BRG_DIV16 ((uint)0x00000001) /* SI Clock Route Register */ #define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000) #define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000) #define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800) #define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100) #define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000) #define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000) #define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000) #define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000) /* SCCs. */ #define SCC_GSMRH_IRP ((uint)0x00040000) #define SCC_GSMRH_GDE ((uint)0x00010000) #define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000) #define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000) #define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000) #define SCC_GSMRH_REVD ((uint)0x00002000) #define SCC_GSMRH_TRX ((uint)0x00001000) #define SCC_GSMRH_TTX ((uint)0x00000800) #define SCC_GSMRH_CDP ((uint)0x00000400) #define SCC_GSMRH_CTSP ((uint)0x00000200) #define SCC_GSMRH_CDS ((uint)0x00000100) #define SCC_GSMRH_CTSS ((uint)0x00000080) #define SCC_GSMRH_TFL ((uint)0x00000040) #define SCC_GSMRH_RFW ((uint)0x00000020) #define SCC_GSMRH_TXSY ((uint)0x00000010) #define SCC_GSMRH_SYNL16 ((uint)0x0000000c) #define SCC_GSMRH_SYNL8 ((uint)0x00000008) #define SCC_GSMRH_SYNL4 ((uint)0x00000004) #define SCC_GSMRH_RTSM ((uint)0x00000002) #define SCC_GSMRH_RSYN ((uint)0x00000001) #define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */ #define SCC_GSMRL_EDGE_NONE ((uint)0x60000000) #define SCC_GSMRL_EDGE_NEG ((uint)0x40000000) #define SCC_GSMRL_EDGE_POS ((uint)0x20000000) #define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000) #define SCC_GSMRL_TCI ((uint)0x10000000) #define SCC_GSMRL_TSNC_3 ((uint)0x0c000000) #define SCC_GSMRL_TSNC_4 ((uint)0x08000000) #define SCC_GSMRL_TSNC_14 ((uint)0x04000000) #define SCC_GSMRL_TSNC_INF ((uint)0x00000000) #define SCC_GSMRL_RINV ((uint)0x02000000) #define SCC_GSMRL_TINV ((uint)0x01000000) #define SCC_GSMRL_TPL_128 ((uint)0x00c00000) #define SCC_GSMRL_TPL_64 ((uint)0x00a00000) #define SCC_GSMRL_TPL_48 ((uint)0x00800000) #define SCC_GSMRL_TPL_32 ((uint)0x00600000) #define SCC_GSMRL_TPL_16 ((uint)0x00400000) #define SCC_GSMRL_TPL_8 ((uint)0x00200000) #define SCC_GSMRL_TPL_NONE ((uint)0x00000000) #define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000) #define SCC_GSMRL_TPP_01 ((uint)0x00100000) #define SCC_GSMRL_TPP_10 ((uint)0x00080000) #define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000) #define SCC_GSMRL_TEND ((uint)0x00040000) #define SCC_GSMRL_TDCR_32 ((uint)0x00030000) #define SCC_GSMRL_TDCR_16 ((uint)0x00020000) #define SCC_GSMRL_TDCR_8 ((uint)0x00010000) #define SCC_GSMRL_TDCR_1 ((uint)0x00000000) #define SCC_GSMRL_RDCR_32 ((uint)0x0000c000) #define SCC_GSMRL_RDCR_16 ((uint)0x00008000) #define SCC_GSMRL_RDCR_8 ((uint)0x00004000) #define SCC_GSMRL_RDCR_1 ((uint)0x00000000) #define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000) #define SCC_GSMRL_RENC_MANCH ((uint)0x00002000) #define SCC_GSMRL_RENC_FM0 ((uint)0x00001000) #define SCC_GSMRL_RENC_NRZI ((uint)0x00000800) #define SCC_GSMRL_RENC_NRZ ((uint)0x00000000) #define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600) #define SCC_GSMRL_TENC_MANCH ((uint)0x00000400) #define SCC_GSMRL_TENC_FM0 ((uint)0x00000200) #define SCC_GSMRL_TENC_NRZI ((uint)0x00000100) #define SCC_GSMRL_TENC_NRZ ((uint)0x00000000) #define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */ #define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080) #define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040) #define SCC_GSMRL_DIAG_NORM ((uint)0x00000000) #define SCC_GSMRL_ENR ((uint)0x00000020) #define SCC_GSMRL_ENT ((uint)0x00000010) #define SCC_GSMRL_MODE_ENET ((uint)0x0000000c) #define SCC_GSMRL_MODE_QMC ((uint)0x0000000a) #define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009) #define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008) #define SCC_GSMRL_MODE_V14 ((uint)0x00000007) #define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006) #define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005) #define SCC_GSMRL_MODE_UART ((uint)0x00000004) #define SCC_GSMRL_MODE_SS7 ((uint)0x00000003) #define SCC_GSMRL_MODE_ATALK ((uint)0x00000002) #define SCC_GSMRL_MODE_HDLC ((uint)0x00000000) #define SCC_TODR_TOD ((ushort)0x8000) /* SCC Event and Mask register. */ #define SCCM_TXE ((unsigned char)0x10) #define SCCM_BSY ((unsigned char)0x04) #define SCCM_TX ((unsigned char)0x02) #define SCCM_RX ((unsigned char)0x01) typedef struct scc_param { ushort scc_rbase; /* Rx Buffer descriptor base address */ ushort scc_tbase; /* Tx Buffer descriptor base address */ u_char scc_rfcr; /* Rx function code */ u_char scc_tfcr; /* Tx function code */ ushort scc_mrblr; /* Max receive buffer length */ uint scc_rstate; /* Internal */ uint scc_idp; /* Internal */ ushort scc_rbptr; /* Internal */ ushort scc_ibc; /* Internal */ uint scc_rxtmp; /* Internal */ uint scc_tstate; /* Internal */ uint scc_tdp; /* Internal */ ushort scc_tbptr; /* Internal */ ushort scc_tbc; /* Internal */ uint scc_txtmp; /* Internal */ uint scc_rcrc; /* Internal */ uint scc_tcrc; /* Internal */ } sccp_t; /* Function code bits. */ #define SCC_EB ((u_char)0x10) /* Set big endian byte order */ /* CPM Ethernet through SCCx. */ typedef struct scc_enet { sccp_t sen_genscc; uint sen_cpres; /* Preset CRC */ uint sen_cmask; /* Constant mask for CRC */ uint sen_crcec; /* CRC Error counter */ uint sen_alec; /* alignment error counter */ uint sen_disfc; /* discard frame counter */ ushort sen_pads; /* Tx short frame pad character */ ushort sen_retlim; /* Retry limit threshold */ ushort sen_retcnt; /* Retry limit counter */ ushort sen_maxflr; /* maximum frame length register */ ushort sen_minflr; /* minimum frame length register */ ushort sen_maxd1; /* maximum DMA1 length */ ushort sen_maxd2; /* maximum DMA2 length */ ushort sen_maxd; /* Rx max DMA */ ushort sen_dmacnt; /* Rx DMA counter */ ushort sen_maxb; /* Max BD byte count */ ushort sen_gaddr1; /* Group address filter */ ushort sen_gaddr2; ushort sen_gaddr3; ushort sen_gaddr4; uint sen_tbuf0data0; /* Save area 0 - current frame */ uint sen_tbuf0data1; /* Save area 1 - current frame */ uint sen_tbuf0rba; /* Internal */ uint sen_tbuf0crc; /* Internal */ ushort sen_tbuf0bcnt; /* Internal */ ushort sen_paddrh; /* physical address (MSB) */ ushort sen_paddrm; ushort sen_paddrl; /* physical address (LSB) */ ushort sen_pper; /* persistence */ ushort sen_rfbdptr; /* Rx first BD pointer */ ushort sen_tfbdptr; /* Tx first BD pointer */ ushort sen_tlbdptr; /* Tx last BD pointer */ uint sen_tbuf1data0; /* Save area 0 - current frame */ uint sen_tbuf1data1; /* Save area 1 - current frame */ uint sen_tbuf1rba; /* Internal */ uint sen_tbuf1crc; /* Internal */ ushort sen_tbuf1bcnt; /* Internal */ ushort sen_txlen; /* Tx Frame length counter */ ushort sen_iaddr1; /* Individual address filter */ ushort sen_iaddr2; ushort sen_iaddr3; ushort sen_iaddr4; ushort sen_boffcnt; /* Backoff counter */ /* NOTE: Some versions of the manual have the following items * incorrectly documented. Below is the proper order. */ ushort sen_taddrh; /* temp address (MSB) */ ushort sen_taddrm; ushort sen_taddrl; /* temp address (LSB) */ } scc_enet_t; /* SCC Event register as used by Ethernet. */ #define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ #define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */ #define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */ #define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */ #define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ #define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */ /* SCC Mode Register (PMSR) as used by Ethernet. */ #define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */ #define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */ #define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */ #define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */ #define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */ #define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */ #define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */ #define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */ #define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */ #define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */ #define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */ #define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */ #define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */ /* Buffer descriptor control/status used by Ethernet receive. */ #define BD_ENET_RX_EMPTY ((ushort)0x8000) #define BD_ENET_RX_WRAP ((ushort)0x2000) #define BD_ENET_RX_INTR ((ushort)0x1000) #define BD_ENET_RX_LAST ((ushort)0x0800) #define BD_ENET_RX_FIRST ((ushort)0x0400) #define BD_ENET_RX_MISS ((ushort)0x0100) #define BD_ENET_RX_LG ((ushort)0x0020) #define BD_ENET_RX_NO ((ushort)0x0010) #define BD_ENET_RX_SH ((ushort)0x0008) #define BD_ENET_RX_CR ((ushort)0x0004) #define BD_ENET_RX_OV ((ushort)0x0002) #define BD_ENET_RX_CL ((ushort)0x0001) #define BD_ENET_RX_BC ((ushort)0x0080) /* DA is Broadcast */ #define BD_ENET_RX_MC ((ushort)0x0040) /* DA is Multicast */ #define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */ /* Buffer descriptor control/status used by Ethernet transmit. */ #define BD_ENET_TX_READY ((ushort)0x8000) #define BD_ENET_TX_PAD ((ushort)0x4000) #define BD_ENET_TX_WRAP ((ushort)0x2000) #define BD_ENET_TX_INTR ((ushort)0x1000) #define BD_ENET_TX_LAST ((ushort)0x0800) #define BD_ENET_TX_TC ((ushort)0x0400) #define BD_ENET_TX_DEF ((ushort)0x0200) #define BD_ENET_TX_HB ((ushort)0x0100) #define BD_ENET_TX_LC ((ushort)0x0080) #define BD_ENET_TX_RL ((ushort)0x0040) #define BD_ENET_TX_RCMASK ((ushort)0x003c) #define BD_ENET_TX_UN ((ushort)0x0002) #define BD_ENET_TX_CSL ((ushort)0x0001) #define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */ /* SCC as UART */ typedef struct scc_uart { sccp_t scc_genscc; char res1[8]; /* Reserved */ ushort scc_maxidl; /* Maximum idle chars */ ushort scc_idlc; /* temp idle counter */ ushort scc_brkcr; /* Break count register */ ushort scc_parec; /* receive parity error counter */ ushort scc_frmec; /* receive framing error counter */ ushort scc_nosec; /* receive noise counter */ ushort scc_brkec; /* receive break condition counter */ ushort scc_brkln; /* last received break length */ ushort scc_uaddr1; /* UART address character 1 */ ushort scc_uaddr2; /* UART address character 2 */ ushort scc_rtemp; /* Temp storage */ ushort scc_toseq; /* Transmit out of sequence char */ ushort scc_char1; /* control character 1 */ ushort scc_char2; /* control character 2 */ ushort scc_char3; /* control character 3 */ ushort scc_char4; /* control character 4 */ ushort scc_char5; /* control character 5 */ ushort scc_char6; /* control character 6 */ ushort scc_char7; /* control character 7 */ ushort scc_char8; /* control character 8 */ ushort scc_rccm; /* receive control character mask */ ushort scc_rccr; /* receive control character register */ ushort scc_rlbc; /* receive last break character */ } scc_uart_t; /* SCC Event and Mask registers when it is used as a UART. */ #define UART_SCCM_GLR ((ushort)0x1000) #define UART_SCCM_GLT ((ushort)0x0800) #define UART_SCCM_AB ((ushort)0x0200) #define UART_SCCM_IDL ((ushort)0x0100) #define UART_SCCM_GRA ((ushort)0x0080) #define UART_SCCM_BRKE ((ushort)0x0040) #define UART_SCCM_BRKS ((ushort)0x0020) #define UART_SCCM_CCR ((ushort)0x0008) #define UART_SCCM_BSY ((ushort)0x0004) #define UART_SCCM_TX ((ushort)0x0002) #define UART_SCCM_RX ((ushort)0x0001) /* The SCC PMSR when used as a UART. */ #define SCU_PSMR_FLC ((ushort)0x8000) #define SCU_PSMR_SL ((ushort)0x4000) #define SCU_PSMR_CL ((ushort)0x3000) #define SCU_PSMR_UM ((ushort)0x0c00) #define SCU_PSMR_FRZ ((ushort)0x0200) #define SCU_PSMR_RZS ((ushort)0x0100) #define SCU_PSMR_SYN ((ushort)0x0080) #define SCU_PSMR_DRT ((ushort)0x0040) #define SCU_PSMR_PEN ((ushort)0x0010) #define SCU_PSMR_RPM ((ushort)0x000c) #define SCU_PSMR_REVP ((ushort)0x0008) #define SCU_PSMR_TPM ((ushort)0x0003) #define SCU_PSMR_TEVP ((ushort)0x0002) /* CPM Transparent mode SCC. */ typedef struct scc_trans { sccp_t st_genscc; uint st_cpres; /* Preset CRC */ uint st_cmask; /* Constant mask for CRC */ } scc_trans_t; #define BD_SCC_TX_LAST ((ushort)0x0800) /* IIC parameter RAM. */ typedef struct iic { ushort iic_rbase; /* Rx Buffer descriptor base address */ ushort iic_tbase; /* Tx Buffer descriptor base address */ u_char iic_rfcr; /* Rx function code */ u_char iic_tfcr; /* Tx function code */ ushort iic_mrblr; /* Max receive buffer length */ uint iic_rstate; /* Internal */ uint iic_rdp; /* Internal */ ushort iic_rbptr; /* Internal */ ushort iic_rbc; /* Internal */ uint iic_rxtmp; /* Internal */ uint iic_tstate; /* Internal */ uint iic_tdp; /* Internal */ ushort iic_tbptr; /* Internal */ ushort iic_tbc; /* Internal */ uint iic_txtmp; /* Internal */ char res1[4]; /* Reserved */ ushort iic_rpbase; /* Relocation pointer */ char res2[2]; /* Reserved */ } iic_t; #define BD_IIC_START ((ushort)0x0400) /* SPI parameter RAM. */ typedef struct spi { ushort spi_rbase; /* Rx Buffer descriptor base address */ ushort spi_tbase; /* Tx Buffer descriptor base address */ u_char spi_rfcr; /* Rx function code */ u_char spi_tfcr; /* Tx function code */ ushort spi_mrblr; /* Max receive buffer length */ uint spi_rstate; /* Internal */ uint spi_rdp; /* Internal */ ushort spi_rbptr; /* Internal */ ushort spi_rbc; /* Internal */ uint spi_rxtmp; /* Internal */ uint spi_tstate; /* Internal */ uint spi_tdp; /* Internal */ ushort spi_tbptr; /* Internal */ ushort spi_tbc; /* Internal */ uint spi_txtmp; /* Internal */ uint spi_res; ushort spi_rpbase; /* Relocation pointer */ ushort spi_res2; } spi_t; /* SPI Mode register. */ #define SPMODE_LOOP ((ushort)0x4000) /* Loopback */ #define SPMODE_CI ((ushort)0x2000) /* Clock Invert */ #define SPMODE_CP ((ushort)0x1000) /* Clock Phase */ #define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */ #define SPMODE_REV ((ushort)0x0400) /* Reversed Data */ #define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */ #define SPMODE_EN ((ushort)0x0100) /* Enable */ #define SPMODE_LENMSK ((ushort)0x00f0) /* character length */ #define SPMODE_LEN4 ((ushort)0x0030) /* 4 bits per char */ #define SPMODE_LEN8 ((ushort)0x0070) /* 8 bits per char */ #define SPMODE_LEN16 ((ushort)0x00f0) /* 16 bits per char */ #define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */ /* SPIE fields */ #define SPIE_MME 0x20 #define SPIE_TXE 0x10 #define SPIE_BSY 0x04 #define SPIE_TXB 0x02 #define SPIE_RXB 0x01 /* * RISC Controller Configuration Register definitons */ #define RCCR_TIME 0x8000 /* RISC Timer Enable */ #define RCCR_TIMEP(t) (((t) & 0x3F)<<8) /* RISC Timer Period */ #define RCCR_TIME_MASK 0x00FF /* not RISC Timer related bits */ /* RISC Timer Parameter RAM offset */ #define PROFF_RTMR ((uint)0x01B0) typedef struct risc_timer_pram { unsigned short tm_base; /* RISC Timer Table Base Address */ unsigned short tm_ptr; /* RISC Timer Table Pointer (internal) */ unsigned short r_tmr; /* RISC Timer Mode Register */ unsigned short r_tmv; /* RISC Timer Valid Register */ unsigned long tm_cmd; /* RISC Timer Command Register */ unsigned long tm_cnt; /* RISC Timer Internal Count */ } rt_pram_t; /* Bits in RISC Timer Command Register */ #define TM_CMD_VALID 0x80000000 /* Valid - Enables the timer */ #define TM_CMD_RESTART 0x40000000 /* Restart - for automatic restart */ #define TM_CMD_PWM 0x20000000 /* Run in Pulse Width Modulation Mode */ #define TM_CMD_NUM(n) (((n)&0xF)<<16) /* Timer Number */ #define TM_CMD_PERIOD(p) ((p)&0xFFFF) /* Timer Period */ /* CPM interrupts. There are nearly 32 interrupts generated by CPM * channels or devices. All of these are presented to the PPC core * as a single interrupt. The CPM interrupt handler dispatches its * own handlers, in a similar fashion to the PPC core handler. We * use the table as defined in the manuals (i.e. no special high * priority and SCC1 == SCCa, etc...). */ #define CPMVEC_NR 32 #define CPMVEC_PIO_PC15 ((ushort)0x1f) #define CPMVEC_SCC1 ((ushort)0x1e) #define CPMVEC_SCC2 ((ushort)0x1d) #define CPMVEC_SCC3 ((ushort)0x1c) #define CPMVEC_SCC4 ((ushort)0x1b) #define CPMVEC_PIO_PC14 ((ushort)0x1a) #define CPMVEC_TIMER1 ((ushort)0x19) #define CPMVEC_PIO_PC13 ((ushort)0x18) #define CPMVEC_PIO_PC12 ((ushort)0x17) #define CPMVEC_SDMA_CB_ERR ((ushort)0x16) #define CPMVEC_IDMA1 ((ushort)0x15) #define CPMVEC_IDMA2 ((ushort)0x14) #define CPMVEC_TIMER2 ((ushort)0x12) #define CPMVEC_RISCTIMER ((ushort)0x11) #define CPMVEC_I2C ((ushort)0x10) #define CPMVEC_PIO_PC11 ((ushort)0x0f) #define CPMVEC_PIO_PC10 ((ushort)0x0e) #define CPMVEC_TIMER3 ((ushort)0x0c) #define CPMVEC_PIO_PC9 ((ushort)0x0b) #define CPMVEC_PIO_PC8 ((ushort)0x0a) #define CPMVEC_PIO_PC7 ((ushort)0x09) #define CPMVEC_TIMER4 ((ushort)0x07) #define CPMVEC_PIO_PC6 ((ushort)0x06) #define CPMVEC_SPI ((ushort)0x05) #define CPMVEC_SMC1 ((ushort)0x04) #define CPMVEC_SMC2 ((ushort)0x03) #define CPMVEC_PIO_PC5 ((ushort)0x02) #define CPMVEC_PIO_PC4 ((ushort)0x01) #define CPMVEC_ERROR ((ushort)0x00) /* CPM interrupt configuration vector. */ #define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */ #define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */ #define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */ #define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */ #define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrrupt */ #define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */ #define CICR_IEN ((uint)0x00000080) /* Int. enable */ #define CICR_SPS ((uint)0x00000001) /* SCC Spread */ extern void cpm_install_handler(int vec, void (*handler)(void *, struct pt_regs *regs), void *dev_id); extern void cpm_free_handler(int vec); #endif /* __CPM_8XX__ */ |