1 /* Renesas Ethernet AVB device driver
3 * Copyright (C) 2014-2015 Renesas Electronics Corporation
4 * Copyright (C) 2015 Renesas Solutions Corp.
5 * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
7 * Based on the SuperH Ethernet driver
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms and conditions of the GNU General Public License version 2,
11 * as published by the Free Software Foundation.
17 #include <linux/interrupt.h>
19 #include <linux/kernel.h>
20 #include <linux/mdio-bitbang.h>
21 #include <linux/netdevice.h>
22 #include <linux/phy.h>
23 #include <linux/platform_device.h>
24 #include <linux/ptp_clock_kernel.h>
26 #define BE_TX_RING_SIZE 64 /* TX ring size for Best Effort */
27 #define BE_RX_RING_SIZE 1024 /* RX ring size for Best Effort */
28 #define NC_TX_RING_SIZE 64 /* TX ring size for Network Control */
29 #define NC_RX_RING_SIZE 64 /* RX ring size for Network Control */
30 #define BE_TX_RING_MIN 64
31 #define BE_RX_RING_MIN 64
32 #define BE_TX_RING_MAX 1024
33 #define BE_RX_RING_MAX 2048
35 #define PKT_BUF_SZ 1538
37 /* Driver's parameters */
38 #define RAVB_ALIGN 128
40 /* Hardware time stamp */
41 #define RAVB_TXTSTAMP_VALID 0x00000001 /* TX timestamp valid */
42 #define RAVB_TXTSTAMP_ENABLED 0x00000010 /* Enable TX timestamping */
44 #define RAVB_RXTSTAMP_VALID 0x00000001 /* RX timestamp valid */
45 #define RAVB_RXTSTAMP_TYPE 0x00000006 /* RX type mask */
46 #define RAVB_RXTSTAMP_TYPE_V2_L2_EVENT 0x00000002
47 #define RAVB_RXTSTAMP_TYPE_ALL 0x00000006
48 #define RAVB_RXTSTAMP_ENABLED 0x00000010 /* Enable RX timestamping */
51 /* AVB-DMAC registers */
160 CIE = 0x0384, /* R-Car Gen3 only */
170 GCPT = 0x03B4, /* Undocumented? */
174 GIE = 0x03CC, /* R-Car Gen3 only */
175 GID = 0x03D0, /* R-Car Gen3 only */
176 DIL = 0x0440, /* R-Car Gen3 only */
177 RIE0 = 0x0460, /* R-Car Gen3 only */
178 RID0 = 0x0464, /* R-Car Gen3 only */
179 RIE2 = 0x0470, /* R-Car Gen3 only */
180 RID2 = 0x0474, /* R-Car Gen3 only */
181 TIE = 0x0478, /* R-Car Gen3 only */
182 TID = 0x047c, /* R-Car Gen3 only */
184 /* E-MAC registers */
198 TROCR = 0x0700, /* Undocumented? */
199 CDCR = 0x0708, /* Undocumented? */
200 LCCR = 0x0710, /* Undocumented? */
206 CERCR = 0x0768, /* Undocumented? */
207 CEECR = 0x0770, /* Undocumented? */
212 /* Register bits of the Ethernet AVB */
215 CCC_OPC = 0x00000003,
216 CCC_OPC_RESET = 0x00000000,
217 CCC_OPC_CONFIG = 0x00000001,
218 CCC_OPC_OPERATION = 0x00000002,
219 CCC_GAC = 0x00000080,
220 CCC_DTSR = 0x00000100,
221 CCC_CSEL = 0x00030000,
222 CCC_CSEL_HPB = 0x00010000,
223 CCC_CSEL_ETH_TX = 0x00020000,
224 CCC_CSEL_GMII_REF = 0x00030000,
225 CCC_BOC = 0x00100000, /* Undocumented? */
226 CCC_LBME = 0x01000000,
231 CSR_OPS = 0x0000000F,
232 CSR_OPS_RESET = 0x00000001,
233 CSR_OPS_CONFIG = 0x00000002,
234 CSR_OPS_OPERATION = 0x00000004,
235 CSR_OPS_STANDBY = 0x00000008, /* Undocumented? */
236 CSR_DTS = 0x00000100,
237 CSR_TPO0 = 0x00010000,
238 CSR_TPO1 = 0x00020000,
239 CSR_TPO2 = 0x00040000,
240 CSR_TPO3 = 0x00080000,
241 CSR_RPO = 0x00100000,
246 ESR_EQN = 0x0000001F,
248 ESR_EIL = 0x00001000,
253 RCR_EFFS = 0x00000001,
254 RCR_ENCF = 0x00000002,
255 RCR_ESF = 0x0000000C,
256 RCR_ETS0 = 0x00000010,
257 RCR_ETS2 = 0x00000020,
258 RCR_RFCL = 0x1FFF0000,
263 RQC_RSM0 = 0x00000003,
264 RQC_UFCC0 = 0x00000030,
265 RQC_RSM1 = 0x00000300,
266 RQC_UFCC1 = 0x00003000,
267 RQC_RSM2 = 0x00030000,
268 RQC_UFCC2 = 0x00300000,
269 RQC_RSM3 = 0x03000000,
270 RQC_UFCC3 = 0x30000000,
275 RPC_PCNT = 0x00000700,
276 RPC_DCNT = 0x00FF0000,
281 UFCW_WL0 = 0x0000003F,
282 UFCW_WL1 = 0x00003F00,
283 UFCW_WL2 = 0x003F0000,
284 UFCW_WL3 = 0x3F000000,
289 UFCS_SL0 = 0x0000003F,
290 UFCS_SL1 = 0x00003F00,
291 UFCS_SL2 = 0x003F0000,
292 UFCS_SL3 = 0x3F000000,
297 UFCV_CV0 = 0x0000003F,
298 UFCV_CV1 = 0x00003F00,
299 UFCV_CV2 = 0x003F0000,
300 UFCV_CV3 = 0x3F000000,
305 UFCD_DV0 = 0x0000003F,
306 UFCD_DV1 = 0x00003F00,
307 UFCD_DV2 = 0x003F0000,
308 UFCD_DV3 = 0x3F000000,
313 SFO_FPB = 0x0000003F,
318 RTC_MFL0 = 0x00000FFF,
319 RTC_MFL1 = 0x0FFF0000,
324 TGC_TSM0 = 0x00000001,
325 TGC_TSM1 = 0x00000002,
326 TGC_TSM2 = 0x00000004,
327 TGC_TSM3 = 0x00000008,
328 TGC_TQP = 0x00000030,
329 TGC_TQP_NONAVB = 0x00000000,
330 TGC_TQP_AVBMODE1 = 0x00000010,
331 TGC_TQP_AVBMODE2 = 0x00000030,
332 TGC_TBD0 = 0x00000300,
333 TGC_TBD1 = 0x00003000,
334 TGC_TBD2 = 0x00030000,
335 TGC_TBD3 = 0x00300000,
340 TCCR_TSRQ0 = 0x00000001,
341 TCCR_TSRQ1 = 0x00000002,
342 TCCR_TSRQ2 = 0x00000004,
343 TCCR_TSRQ3 = 0x00000008,
344 TCCR_TFEN = 0x00000100,
345 TCCR_TFR = 0x00000200,
350 TSR_CCS0 = 0x00000003,
351 TSR_CCS1 = 0x0000000C,
352 TSR_TFFL = 0x00000700,
357 TFA2_TSV = 0x0000FFFF,
358 TFA2_TST = 0x03FF0000,
363 DIC_DPE1 = 0x00000002,
364 DIC_DPE2 = 0x00000004,
365 DIC_DPE3 = 0x00000008,
366 DIC_DPE4 = 0x00000010,
367 DIC_DPE5 = 0x00000020,
368 DIC_DPE6 = 0x00000040,
369 DIC_DPE7 = 0x00000080,
370 DIC_DPE8 = 0x00000100,
371 DIC_DPE9 = 0x00000200,
372 DIC_DPE10 = 0x00000400,
373 DIC_DPE11 = 0x00000800,
374 DIC_DPE12 = 0x00001000,
375 DIC_DPE13 = 0x00002000,
376 DIC_DPE14 = 0x00004000,
377 DIC_DPE15 = 0x00008000,
382 DIS_DPF1 = 0x00000002,
383 DIS_DPF2 = 0x00000004,
384 DIS_DPF3 = 0x00000008,
385 DIS_DPF4 = 0x00000010,
386 DIS_DPF5 = 0x00000020,
387 DIS_DPF6 = 0x00000040,
388 DIS_DPF7 = 0x00000080,
389 DIS_DPF8 = 0x00000100,
390 DIS_DPF9 = 0x00000200,
391 DIS_DPF10 = 0x00000400,
392 DIS_DPF11 = 0x00000800,
393 DIS_DPF12 = 0x00001000,
394 DIS_DPF13 = 0x00002000,
395 DIS_DPF14 = 0x00004000,
396 DIS_DPF15 = 0x00008000,
401 EIC_MREE = 0x00000001,
402 EIC_MTEE = 0x00000002,
403 EIC_QEE = 0x00000004,
404 EIC_SEE = 0x00000008,
405 EIC_CLLE0 = 0x00000010,
406 EIC_CLLE1 = 0x00000020,
407 EIC_CULE0 = 0x00000040,
408 EIC_CULE1 = 0x00000080,
409 EIC_TFFE = 0x00000100,
414 EIS_MREF = 0x00000001,
415 EIS_MTEF = 0x00000002,
416 EIS_QEF = 0x00000004,
417 EIS_SEF = 0x00000008,
418 EIS_CLLF0 = 0x00000010,
419 EIS_CLLF1 = 0x00000020,
420 EIS_CULF0 = 0x00000040,
421 EIS_CULF1 = 0x00000080,
422 EIS_TFFF = 0x00000100,
423 EIS_QFS = 0x00010000,
428 RIC0_FRE0 = 0x00000001,
429 RIC0_FRE1 = 0x00000002,
430 RIC0_FRE2 = 0x00000004,
431 RIC0_FRE3 = 0x00000008,
432 RIC0_FRE4 = 0x00000010,
433 RIC0_FRE5 = 0x00000020,
434 RIC0_FRE6 = 0x00000040,
435 RIC0_FRE7 = 0x00000080,
436 RIC0_FRE8 = 0x00000100,
437 RIC0_FRE9 = 0x00000200,
438 RIC0_FRE10 = 0x00000400,
439 RIC0_FRE11 = 0x00000800,
440 RIC0_FRE12 = 0x00001000,
441 RIC0_FRE13 = 0x00002000,
442 RIC0_FRE14 = 0x00004000,
443 RIC0_FRE15 = 0x00008000,
444 RIC0_FRE16 = 0x00010000,
445 RIC0_FRE17 = 0x00020000,
450 RIS0_FRF0 = 0x00000001,
451 RIS0_FRF1 = 0x00000002,
452 RIS0_FRF2 = 0x00000004,
453 RIS0_FRF3 = 0x00000008,
454 RIS0_FRF4 = 0x00000010,
455 RIS0_FRF5 = 0x00000020,
456 RIS0_FRF6 = 0x00000040,
457 RIS0_FRF7 = 0x00000080,
458 RIS0_FRF8 = 0x00000100,
459 RIS0_FRF9 = 0x00000200,
460 RIS0_FRF10 = 0x00000400,
461 RIS0_FRF11 = 0x00000800,
462 RIS0_FRF12 = 0x00001000,
463 RIS0_FRF13 = 0x00002000,
464 RIS0_FRF14 = 0x00004000,
465 RIS0_FRF15 = 0x00008000,
466 RIS0_FRF16 = 0x00010000,
467 RIS0_FRF17 = 0x00020000,
472 RIC1_RFWE = 0x80000000,
477 RIS1_RFWF = 0x80000000,
482 RIC2_QFE0 = 0x00000001,
483 RIC2_QFE1 = 0x00000002,
484 RIC2_QFE2 = 0x00000004,
485 RIC2_QFE3 = 0x00000008,
486 RIC2_QFE4 = 0x00000010,
487 RIC2_QFE5 = 0x00000020,
488 RIC2_QFE6 = 0x00000040,
489 RIC2_QFE7 = 0x00000080,
490 RIC2_QFE8 = 0x00000100,
491 RIC2_QFE9 = 0x00000200,
492 RIC2_QFE10 = 0x00000400,
493 RIC2_QFE11 = 0x00000800,
494 RIC2_QFE12 = 0x00001000,
495 RIC2_QFE13 = 0x00002000,
496 RIC2_QFE14 = 0x00004000,
497 RIC2_QFE15 = 0x00008000,
498 RIC2_QFE16 = 0x00010000,
499 RIC2_QFE17 = 0x00020000,
500 RIC2_RFFE = 0x80000000,
505 RIS2_QFF0 = 0x00000001,
506 RIS2_QFF1 = 0x00000002,
507 RIS2_QFF2 = 0x00000004,
508 RIS2_QFF3 = 0x00000008,
509 RIS2_QFF4 = 0x00000010,
510 RIS2_QFF5 = 0x00000020,
511 RIS2_QFF6 = 0x00000040,
512 RIS2_QFF7 = 0x00000080,
513 RIS2_QFF8 = 0x00000100,
514 RIS2_QFF9 = 0x00000200,
515 RIS2_QFF10 = 0x00000400,
516 RIS2_QFF11 = 0x00000800,
517 RIS2_QFF12 = 0x00001000,
518 RIS2_QFF13 = 0x00002000,
519 RIS2_QFF14 = 0x00004000,
520 RIS2_QFF15 = 0x00008000,
521 RIS2_QFF16 = 0x00010000,
522 RIS2_QFF17 = 0x00020000,
523 RIS2_RFFF = 0x80000000,
528 TIC_FTE0 = 0x00000001, /* Undocumented? */
529 TIC_FTE1 = 0x00000002, /* Undocumented? */
530 TIC_TFUE = 0x00000100,
531 TIC_TFWE = 0x00000200,
536 TIS_FTF0 = 0x00000001, /* Undocumented? */
537 TIS_FTF1 = 0x00000002, /* Undocumented? */
538 TIS_TFUF = 0x00000100,
539 TIS_TFWF = 0x00000200,
544 ISS_FRS = 0x00000001, /* Undocumented? */
545 ISS_FTS = 0x00000004, /* Undocumented? */
548 ISS_TFUS = 0x00000100,
549 ISS_TFWS = 0x00000200,
550 ISS_RFWS = 0x00001000,
551 ISS_CGIS = 0x00002000,
552 ISS_DPS1 = 0x00020000,
553 ISS_DPS2 = 0x00040000,
554 ISS_DPS3 = 0x00080000,
555 ISS_DPS4 = 0x00100000,
556 ISS_DPS5 = 0x00200000,
557 ISS_DPS6 = 0x00400000,
558 ISS_DPS7 = 0x00800000,
559 ISS_DPS8 = 0x01000000,
560 ISS_DPS9 = 0x02000000,
561 ISS_DPS10 = 0x04000000,
562 ISS_DPS11 = 0x08000000,
563 ISS_DPS12 = 0x10000000,
564 ISS_DPS13 = 0x20000000,
565 ISS_DPS14 = 0x40000000,
566 ISS_DPS15 = 0x80000000,
569 /* CIE (R-Car Gen3 only) */
571 CIE_CRIE = 0x00000001,
572 CIE_CTIE = 0x00000100,
573 CIE_RQFM = 0x00010000,
574 CIE_CL0M = 0x00020000,
575 CIE_RFWL = 0x00040000,
576 CIE_RFFL = 0x00080000,
581 GCCR_TCR = 0x00000003,
582 GCCR_TCR_NOREQ = 0x00000000, /* No request */
583 GCCR_TCR_RESET = 0x00000001, /* gPTP/AVTP presentation timer reset */
584 GCCR_TCR_CAPTURE = 0x00000003, /* Capture value set in GCCR.TCSS */
585 GCCR_LTO = 0x00000004,
586 GCCR_LTI = 0x00000008,
587 GCCR_LPTC = 0x00000010,
588 GCCR_LMTT = 0x00000020,
589 GCCR_TCSS = 0x00000300,
590 GCCR_TCSS_GPTP = 0x00000000, /* gPTP timer value */
591 GCCR_TCSS_ADJGPTP = 0x00000100, /* Adjusted gPTP timer value */
592 GCCR_TCSS_AVTP = 0x00000200, /* AVTP presentation time value */
597 GTI_TIV = 0x0FFFFFFF,
600 #define GTI_TIV_MAX GTI_TIV
601 #define GTI_TIV_MIN 0x20
605 GIC_PTCE = 0x00000001, /* Undocumented? */
606 GIC_PTME = 0x00000004,
611 GIS_PTCF = 0x00000001, /* Undocumented? */
612 GIS_PTMF = 0x00000004,
615 /* GIE (R-Car Gen3 only) */
617 GIE_PTCS = 0x00000001,
618 GIE_PTOS = 0x00000002,
619 GIE_PTMS0 = 0x00000004,
620 GIE_PTMS1 = 0x00000008,
621 GIE_PTMS2 = 0x00000010,
622 GIE_PTMS3 = 0x00000020,
623 GIE_PTMS4 = 0x00000040,
624 GIE_PTMS5 = 0x00000080,
625 GIE_PTMS6 = 0x00000100,
626 GIE_PTMS7 = 0x00000200,
627 GIE_ATCS0 = 0x00010000,
628 GIE_ATCS1 = 0x00020000,
629 GIE_ATCS2 = 0x00040000,
630 GIE_ATCS3 = 0x00080000,
631 GIE_ATCS4 = 0x00100000,
632 GIE_ATCS5 = 0x00200000,
633 GIE_ATCS6 = 0x00400000,
634 GIE_ATCS7 = 0x00800000,
635 GIE_ATCS8 = 0x01000000,
636 GIE_ATCS9 = 0x02000000,
637 GIE_ATCS10 = 0x04000000,
638 GIE_ATCS11 = 0x08000000,
639 GIE_ATCS12 = 0x10000000,
640 GIE_ATCS13 = 0x20000000,
641 GIE_ATCS14 = 0x40000000,
642 GIE_ATCS15 = 0x80000000,
645 /* GID (R-Car Gen3 only) */
647 GID_PTCD = 0x00000001,
648 GID_PTOD = 0x00000002,
649 GID_PTMD0 = 0x00000004,
650 GID_PTMD1 = 0x00000008,
651 GID_PTMD2 = 0x00000010,
652 GID_PTMD3 = 0x00000020,
653 GID_PTMD4 = 0x00000040,
654 GID_PTMD5 = 0x00000080,
655 GID_PTMD6 = 0x00000100,
656 GID_PTMD7 = 0x00000200,
657 GID_ATCD0 = 0x00010000,
658 GID_ATCD1 = 0x00020000,
659 GID_ATCD2 = 0x00040000,
660 GID_ATCD3 = 0x00080000,
661 GID_ATCD4 = 0x00100000,
662 GID_ATCD5 = 0x00200000,
663 GID_ATCD6 = 0x00400000,
664 GID_ATCD7 = 0x00800000,
665 GID_ATCD8 = 0x01000000,
666 GID_ATCD9 = 0x02000000,
667 GID_ATCD10 = 0x04000000,
668 GID_ATCD11 = 0x08000000,
669 GID_ATCD12 = 0x10000000,
670 GID_ATCD13 = 0x20000000,
671 GID_ATCD14 = 0x40000000,
672 GID_ATCD15 = 0x80000000,
675 /* RIE0 (R-Car Gen3 only) */
677 RIE0_FRS0 = 0x00000001,
678 RIE0_FRS1 = 0x00000002,
679 RIE0_FRS2 = 0x00000004,
680 RIE0_FRS3 = 0x00000008,
681 RIE0_FRS4 = 0x00000010,
682 RIE0_FRS5 = 0x00000020,
683 RIE0_FRS6 = 0x00000040,
684 RIE0_FRS7 = 0x00000080,
685 RIE0_FRS8 = 0x00000100,
686 RIE0_FRS9 = 0x00000200,
687 RIE0_FRS10 = 0x00000400,
688 RIE0_FRS11 = 0x00000800,
689 RIE0_FRS12 = 0x00001000,
690 RIE0_FRS13 = 0x00002000,
691 RIE0_FRS14 = 0x00004000,
692 RIE0_FRS15 = 0x00008000,
693 RIE0_FRS16 = 0x00010000,
694 RIE0_FRS17 = 0x00020000,
697 /* RID0 (R-Car Gen3 only) */
699 RID0_FRD0 = 0x00000001,
700 RID0_FRD1 = 0x00000002,
701 RID0_FRD2 = 0x00000004,
702 RID0_FRD3 = 0x00000008,
703 RID0_FRD4 = 0x00000010,
704 RID0_FRD5 = 0x00000020,
705 RID0_FRD6 = 0x00000040,
706 RID0_FRD7 = 0x00000080,
707 RID0_FRD8 = 0x00000100,
708 RID0_FRD9 = 0x00000200,
709 RID0_FRD10 = 0x00000400,
710 RID0_FRD11 = 0x00000800,
711 RID0_FRD12 = 0x00001000,
712 RID0_FRD13 = 0x00002000,
713 RID0_FRD14 = 0x00004000,
714 RID0_FRD15 = 0x00008000,
715 RID0_FRD16 = 0x00010000,
716 RID0_FRD17 = 0x00020000,
719 /* RIE2 (R-Car Gen3 only) */
721 RIE2_QFS0 = 0x00000001,
722 RIE2_QFS1 = 0x00000002,
723 RIE2_QFS2 = 0x00000004,
724 RIE2_QFS3 = 0x00000008,
725 RIE2_QFS4 = 0x00000010,
726 RIE2_QFS5 = 0x00000020,
727 RIE2_QFS6 = 0x00000040,
728 RIE2_QFS7 = 0x00000080,
729 RIE2_QFS8 = 0x00000100,
730 RIE2_QFS9 = 0x00000200,
731 RIE2_QFS10 = 0x00000400,
732 RIE2_QFS11 = 0x00000800,
733 RIE2_QFS12 = 0x00001000,
734 RIE2_QFS13 = 0x00002000,
735 RIE2_QFS14 = 0x00004000,
736 RIE2_QFS15 = 0x00008000,
737 RIE2_QFS16 = 0x00010000,
738 RIE2_QFS17 = 0x00020000,
739 RIE2_RFFS = 0x80000000,
742 /* RID2 (R-Car Gen3 only) */
744 RID2_QFD0 = 0x00000001,
745 RID2_QFD1 = 0x00000002,
746 RID2_QFD2 = 0x00000004,
747 RID2_QFD3 = 0x00000008,
748 RID2_QFD4 = 0x00000010,
749 RID2_QFD5 = 0x00000020,
750 RID2_QFD6 = 0x00000040,
751 RID2_QFD7 = 0x00000080,
752 RID2_QFD8 = 0x00000100,
753 RID2_QFD9 = 0x00000200,
754 RID2_QFD10 = 0x00000400,
755 RID2_QFD11 = 0x00000800,
756 RID2_QFD12 = 0x00001000,
757 RID2_QFD13 = 0x00002000,
758 RID2_QFD14 = 0x00004000,
759 RID2_QFD15 = 0x00008000,
760 RID2_QFD16 = 0x00010000,
761 RID2_QFD17 = 0x00020000,
762 RID2_RFFD = 0x80000000,
765 /* TIE (R-Car Gen3 only) */
767 TIE_FTS0 = 0x00000001,
768 TIE_FTS1 = 0x00000002,
769 TIE_FTS2 = 0x00000004,
770 TIE_FTS3 = 0x00000008,
771 TIE_TFUS = 0x00000100,
772 TIE_TFWS = 0x00000200,
773 TIE_MFUS = 0x00000400,
774 TIE_MFWS = 0x00000800,
775 TIE_TDPS0 = 0x00010000,
776 TIE_TDPS1 = 0x00020000,
777 TIE_TDPS2 = 0x00040000,
778 TIE_TDPS3 = 0x00080000,
781 /* TID (R-Car Gen3 only) */
783 TID_FTD0 = 0x00000001,
784 TID_FTD1 = 0x00000002,
785 TID_FTD2 = 0x00000004,
786 TID_FTD3 = 0x00000008,
787 TID_TFUD = 0x00000100,
788 TID_TFWD = 0x00000200,
789 TID_MFUD = 0x00000400,
790 TID_MFWD = 0x00000800,
791 TID_TDPD0 = 0x00010000,
792 TID_TDPD1 = 0x00020000,
793 TID_TDPD2 = 0x00040000,
794 TID_TDPD3 = 0x00080000,
799 ECMR_PRM = 0x00000001,
800 ECMR_DM = 0x00000002,
801 ECMR_TE = 0x00000020,
802 ECMR_RE = 0x00000040,
803 ECMR_MPDE = 0x00000200,
804 ECMR_TXF = 0x00010000, /* Undocumented? */
805 ECMR_RXF = 0x00020000,
806 ECMR_PFR = 0x00040000,
807 ECMR_ZPF = 0x00080000, /* Undocumented? */
808 ECMR_RZPF = 0x00100000,
809 ECMR_DPAD = 0x00200000,
810 ECMR_RCSC = 0x00800000,
811 ECMR_TRCCM = 0x04000000,
816 ECSR_ICD = 0x00000001,
817 ECSR_MPD = 0x00000002,
818 ECSR_LCHNG = 0x00000004,
819 ECSR_PHYI = 0x00000008,
824 ECSIPR_ICDIP = 0x00000001,
825 ECSIPR_MPDIP = 0x00000002,
826 ECSIPR_LCHNGIP = 0x00000004, /* Undocumented? */
831 PIR_MDC = 0x00000001,
832 PIR_MMD = 0x00000002,
833 PIR_MDO = 0x00000004,
834 PIR_MDI = 0x00000008,
839 PSR_LMON = 0x00000001,
844 PIPR_PHYIP = 0x00000001,
854 GECMR_SPEED = 0x00000001,
855 GECMR_SPEED_100 = 0x00000000,
856 GECMR_SPEED_1000 = 0x00000001,
859 /* The Ethernet AVB descriptor definitions. */
861 __le16 ds; /* Descriptor size */
862 u8 cc; /* Content control MSBs (reserved) */
863 u8 die_dt; /* Descriptor interrupt enable and type */
864 __le32 dptr; /* Descriptor pointer */
867 #define DPTR_ALIGN 4 /* Required descriptor pointer alignment */
879 /* HW/SW arbitration */
888 struct ravb_rx_desc {
889 __le16 ds_cc; /* Descriptor size and content control LSBs */
890 u8 msc; /* MAC status code */
891 u8 die_dt; /* Descriptor interrupt enable and type */
892 __le32 dptr; /* Descpriptor pointer */
895 struct ravb_ex_rx_desc {
896 __le16 ds_cc; /* Descriptor size and content control lower bits */
897 u8 msc; /* MAC status code */
898 u8 die_dt; /* Descriptor interrupt enable and type */
899 __le32 dptr; /* Descpriptor pointer */
900 __le32 ts_n; /* Timestampe nsec */
901 __le32 ts_sl; /* Timestamp low */
902 __le16 ts_sh; /* Timestamp high */
903 __le16 res; /* Reserved bits */
907 RX_DS = 0x0fff, /* Data size */
908 RX_TR = 0x1000, /* Truncation indication */
909 RX_EI = 0x2000, /* Error indication */
910 RX_PS = 0xc000, /* Padding selection */
913 /* E-MAC status code */
915 MSC_CRC = 0x01, /* Frame CRC error */
916 MSC_RFE = 0x02, /* Frame reception error (flagged by PHY) */
917 MSC_RTSF = 0x04, /* Frame length error (frame too short) */
918 MSC_RTLF = 0x08, /* Frame length error (frame too long) */
919 MSC_FRE = 0x10, /* Fraction error (not a multiple of 8 bits) */
920 MSC_CRL = 0x20, /* Carrier lost */
921 MSC_CEEF = 0x40, /* Carrier extension error */
922 MSC_MC = 0x80, /* Multicast frame reception */
925 struct ravb_tx_desc {
926 __le16 ds_tagl; /* Descriptor size and frame tag LSBs */
927 u8 tagh_tsr; /* Frame tag MSBs and timestamp storage request bit */
928 u8 die_dt; /* Descriptor interrupt enable and type */
929 __le32 dptr; /* Descpriptor pointer */
932 enum TX_DS_TAGL_BIT {
933 TX_DS = 0x0fff, /* Data size */
934 TX_TAGL = 0xf000, /* Frame tag LSBs */
937 enum TX_TAGH_TSR_BIT {
938 TX_TAGH = 0x3f, /* Frame tag MSBs */
939 TX_TSR = 0x40, /* Timestamp storage request */
942 RAVB_BE = 0, /* Best Effort Queue */
943 RAVB_NC, /* Network Control Queue */
946 #define DBAT_ENTRY_NUM 22
947 #define RX_QUEUE_OFFSET 4
948 #define NUM_RX_QUEUE 2
949 #define NUM_TX_QUEUE 2
950 #define NUM_TX_DESC 2 /* TX descriptors per packet */
952 struct ravb_tstamp_skb {
953 struct list_head list;
958 struct ravb_ptp_perout {
967 struct ptp_clock *clock;
968 struct ptp_clock_info info;
972 struct ravb_ptp_perout perout[N_PER_OUT];
980 struct ravb_private {
981 struct net_device *ndev;
982 struct platform_device *pdev;
984 struct mdiobb_ctrl mdiobb;
985 u32 num_rx_ring[NUM_RX_QUEUE];
986 u32 num_tx_ring[NUM_TX_QUEUE];
988 dma_addr_t desc_bat_dma;
989 struct ravb_desc *desc_bat;
990 dma_addr_t rx_desc_dma[NUM_RX_QUEUE];
991 dma_addr_t tx_desc_dma[NUM_TX_QUEUE];
992 struct ravb_ex_rx_desc *rx_ring[NUM_RX_QUEUE];
993 struct ravb_tx_desc *tx_ring[NUM_TX_QUEUE];
994 void *tx_align[NUM_TX_QUEUE];
995 struct sk_buff **rx_skb[NUM_RX_QUEUE];
996 struct sk_buff **tx_skb[NUM_TX_QUEUE];
999 struct net_device_stats stats[NUM_RX_QUEUE];
1002 struct list_head ts_skb_list;
1004 struct ravb_ptp ptp;
1005 spinlock_t lock; /* Register access lock */
1006 u32 cur_rx[NUM_RX_QUEUE]; /* Consumer ring indices */
1007 u32 dirty_rx[NUM_RX_QUEUE]; /* Producer ring indices */
1008 u32 cur_tx[NUM_TX_QUEUE];
1009 u32 dirty_tx[NUM_TX_QUEUE];
1010 struct napi_struct napi[NUM_RX_QUEUE];
1011 struct work_struct work;
1012 /* MII transceiver section. */
1013 struct mii_bus *mii_bus; /* MDIO bus control */
1014 struct phy_device *phydev; /* PHY device control */
1016 phy_interface_t phy_interface;
1021 enum ravb_chip_id chip_id;
1022 int rx_irqs[NUM_RX_QUEUE];
1023 int tx_irqs[NUM_TX_QUEUE];
1025 unsigned no_avb_link:1;
1026 unsigned avb_link_active_low:1;
1029 static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg)
1031 struct ravb_private *priv = netdev_priv(ndev);
1033 return ioread32(priv->addr + reg);
1036 static inline void ravb_write(struct net_device *ndev, u32 data,
1039 struct ravb_private *priv = netdev_priv(ndev);
1041 iowrite32(data, priv->addr + reg);
1044 void ravb_modify(struct net_device *ndev, enum ravb_reg reg, u32 clear,
1046 int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value);
1048 void ravb_ptp_interrupt(struct net_device *ndev);
1049 void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev);
1050 void ravb_ptp_stop(struct net_device *ndev);
1052 #endif /* #ifndef __RAVB_H__ */