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1/* Renesas Ethernet AVB device driver
2 *
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>
6 *
7 * Based on the SuperH Ethernet driver
8 *
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.
12 */
13
14#ifndef __RAVB_H__
15#define __RAVB_H__
16
17#include <linux/interrupt.h>
18#include <linux/io.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>
25
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
34
35#define PKT_BUF_SZ 1538
36
37/* Driver's parameters */
38#define RAVB_ALIGN 128
39
40/* Hardware time stamp */
41#define RAVB_TXTSTAMP_VALID 0x00000001 /* TX timestamp valid */
42#define RAVB_TXTSTAMP_ENABLED 0x00000010 /* Enable TX timestamping */
43
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 */
49
50enum ravb_reg {
51 /* AVB-DMAC registers */
52 CCC = 0x0000,
53 DBAT = 0x0004,
54 DLR = 0x0008,
55 CSR = 0x000C,
56 CDAR0 = 0x0010,
57 CDAR1 = 0x0014,
58 CDAR2 = 0x0018,
59 CDAR3 = 0x001C,
60 CDAR4 = 0x0020,
61 CDAR5 = 0x0024,
62 CDAR6 = 0x0028,
63 CDAR7 = 0x002C,
64 CDAR8 = 0x0030,
65 CDAR9 = 0x0034,
66 CDAR10 = 0x0038,
67 CDAR11 = 0x003C,
68 CDAR12 = 0x0040,
69 CDAR13 = 0x0044,
70 CDAR14 = 0x0048,
71 CDAR15 = 0x004C,
72 CDAR16 = 0x0050,
73 CDAR17 = 0x0054,
74 CDAR18 = 0x0058,
75 CDAR19 = 0x005C,
76 CDAR20 = 0x0060,
77 CDAR21 = 0x0064,
78 ESR = 0x0088,
79 APSR = 0x008C, /* R-Car Gen3 only */
80 RCR = 0x0090,
81 RQC0 = 0x0094,
82 RQC1 = 0x0098,
83 RQC2 = 0x009C,
84 RQC3 = 0x00A0,
85 RQC4 = 0x00A4,
86 RPC = 0x00B0,
87 UFCW = 0x00BC,
88 UFCS = 0x00C0,
89 UFCV0 = 0x00C4,
90 UFCV1 = 0x00C8,
91 UFCV2 = 0x00CC,
92 UFCV3 = 0x00D0,
93 UFCV4 = 0x00D4,
94 UFCD0 = 0x00E0,
95 UFCD1 = 0x00E4,
96 UFCD2 = 0x00E8,
97 UFCD3 = 0x00EC,
98 UFCD4 = 0x00F0,
99 SFO = 0x00FC,
100 SFP0 = 0x0100,
101 SFP1 = 0x0104,
102 SFP2 = 0x0108,
103 SFP3 = 0x010C,
104 SFP4 = 0x0110,
105 SFP5 = 0x0114,
106 SFP6 = 0x0118,
107 SFP7 = 0x011C,
108 SFP8 = 0x0120,
109 SFP9 = 0x0124,
110 SFP10 = 0x0128,
111 SFP11 = 0x012C,
112 SFP12 = 0x0130,
113 SFP13 = 0x0134,
114 SFP14 = 0x0138,
115 SFP15 = 0x013C,
116 SFP16 = 0x0140,
117 SFP17 = 0x0144,
118 SFP18 = 0x0148,
119 SFP19 = 0x014C,
120 SFP20 = 0x0150,
121 SFP21 = 0x0154,
122 SFP22 = 0x0158,
123 SFP23 = 0x015C,
124 SFP24 = 0x0160,
125 SFP25 = 0x0164,
126 SFP26 = 0x0168,
127 SFP27 = 0x016C,
128 SFP28 = 0x0170,
129 SFP29 = 0x0174,
130 SFP30 = 0x0178,
131 SFP31 = 0x017C,
132 SFM0 = 0x01C0,
133 SFM1 = 0x01C4,
134 TGC = 0x0300,
135 TCCR = 0x0304,
136 TSR = 0x0308,
137 TFA0 = 0x0310,
138 TFA1 = 0x0314,
139 TFA2 = 0x0318,
140 CIVR0 = 0x0320,
141 CIVR1 = 0x0324,
142 CDVR0 = 0x0328,
143 CDVR1 = 0x032C,
144 CUL0 = 0x0330,
145 CUL1 = 0x0334,
146 CLL0 = 0x0338,
147 CLL1 = 0x033C,
148 DIC = 0x0350,
149 DIS = 0x0354,
150 EIC = 0x0358,
151 EIS = 0x035C,
152 RIC0 = 0x0360,
153 RIS0 = 0x0364,
154 RIC1 = 0x0368,
155 RIS1 = 0x036C,
156 RIC2 = 0x0370,
157 RIS2 = 0x0374,
158 TIC = 0x0378,
159 TIS = 0x037C,
160 ISS = 0x0380,
161 CIE = 0x0384, /* R-Car Gen3 only */
162 GCCR = 0x0390,
163 GMTT = 0x0394,
164 GPTC = 0x0398,
165 GTI = 0x039C,
166 GTO0 = 0x03A0,
167 GTO1 = 0x03A4,
168 GTO2 = 0x03A8,
169 GIC = 0x03AC,
170 GIS = 0x03B0,
171 GCPT = 0x03B4, /* Undocumented? */
172 GCT0 = 0x03B8,
173 GCT1 = 0x03BC,
174 GCT2 = 0x03C0,
175 GIE = 0x03CC, /* R-Car Gen3 only */
176 GID = 0x03D0, /* R-Car Gen3 only */
177 DIL = 0x0440, /* R-Car Gen3 only */
178 RIE0 = 0x0460, /* R-Car Gen3 only */
179 RID0 = 0x0464, /* R-Car Gen3 only */
180 RIE2 = 0x0470, /* R-Car Gen3 only */
181 RID2 = 0x0474, /* R-Car Gen3 only */
182 TIE = 0x0478, /* R-Car Gen3 only */
183 TID = 0x047c, /* R-Car Gen3 only */
184
185 /* E-MAC registers */
186 ECMR = 0x0500,
187 RFLR = 0x0508,
188 ECSR = 0x0510,
189 ECSIPR = 0x0518,
190 PIR = 0x0520,
191 PSR = 0x0528,
192 PIPR = 0x052c,
193 MPR = 0x0558,
194 PFTCR = 0x055c,
195 PFRCR = 0x0560,
196 GECMR = 0x05b0,
197 MAHR = 0x05c0,
198 MALR = 0x05c8,
199 TROCR = 0x0700, /* Undocumented? */
200 CDCR = 0x0708, /* Undocumented? */
201 LCCR = 0x0710, /* Undocumented? */
202 CEFCR = 0x0740,
203 FRECR = 0x0748,
204 TSFRCR = 0x0750,
205 TLFRCR = 0x0758,
206 RFCR = 0x0760,
207 CERCR = 0x0768, /* Undocumented? */
208 CEECR = 0x0770, /* Undocumented? */
209 MAFCR = 0x0778,
210};
211
212
213/* Register bits of the Ethernet AVB */
214/* CCC */
215enum CCC_BIT {
216 CCC_OPC = 0x00000003,
217 CCC_OPC_RESET = 0x00000000,
218 CCC_OPC_CONFIG = 0x00000001,
219 CCC_OPC_OPERATION = 0x00000002,
220 CCC_GAC = 0x00000080,
221 CCC_DTSR = 0x00000100,
222 CCC_CSEL = 0x00030000,
223 CCC_CSEL_HPB = 0x00010000,
224 CCC_CSEL_ETH_TX = 0x00020000,
225 CCC_CSEL_GMII_REF = 0x00030000,
226 CCC_BOC = 0x00100000, /* Undocumented? */
227 CCC_LBME = 0x01000000,
228};
229
230/* CSR */
231enum CSR_BIT {
232 CSR_OPS = 0x0000000F,
233 CSR_OPS_RESET = 0x00000001,
234 CSR_OPS_CONFIG = 0x00000002,
235 CSR_OPS_OPERATION = 0x00000004,
236 CSR_OPS_STANDBY = 0x00000008, /* Undocumented? */
237 CSR_DTS = 0x00000100,
238 CSR_TPO0 = 0x00010000,
239 CSR_TPO1 = 0x00020000,
240 CSR_TPO2 = 0x00040000,
241 CSR_TPO3 = 0x00080000,
242 CSR_RPO = 0x00100000,
243};
244
245/* ESR */
246enum ESR_BIT {
247 ESR_EQN = 0x0000001F,
248 ESR_ET = 0x00000F00,
249 ESR_EIL = 0x00001000,
250};
251
252/* APSR */
253enum APSR_BIT {
254 APSR_MEMS = 0x00000002,
255 APSR_CMSW = 0x00000010,
256 APSR_DM = 0x00006000, /* Undocumented? */
257 APSR_DM_RDM = 0x00002000,
258 APSR_DM_TDM = 0x00004000,
259};
260
261/* RCR */
262enum RCR_BIT {
263 RCR_EFFS = 0x00000001,
264 RCR_ENCF = 0x00000002,
265 RCR_ESF = 0x0000000C,
266 RCR_ETS0 = 0x00000010,
267 RCR_ETS2 = 0x00000020,
268 RCR_RFCL = 0x1FFF0000,
269};
270
271/* RQC0/1/2/3/4 */
272enum RQC_BIT {
273 RQC_RSM0 = 0x00000003,
274 RQC_UFCC0 = 0x00000030,
275 RQC_RSM1 = 0x00000300,
276 RQC_UFCC1 = 0x00003000,
277 RQC_RSM2 = 0x00030000,
278 RQC_UFCC2 = 0x00300000,
279 RQC_RSM3 = 0x03000000,
280 RQC_UFCC3 = 0x30000000,
281};
282
283/* RPC */
284enum RPC_BIT {
285 RPC_PCNT = 0x00000700,
286 RPC_DCNT = 0x00FF0000,
287};
288
289/* UFCW */
290enum UFCW_BIT {
291 UFCW_WL0 = 0x0000003F,
292 UFCW_WL1 = 0x00003F00,
293 UFCW_WL2 = 0x003F0000,
294 UFCW_WL3 = 0x3F000000,
295};
296
297/* UFCS */
298enum UFCS_BIT {
299 UFCS_SL0 = 0x0000003F,
300 UFCS_SL1 = 0x00003F00,
301 UFCS_SL2 = 0x003F0000,
302 UFCS_SL3 = 0x3F000000,
303};
304
305/* UFCV0/1/2/3/4 */
306enum UFCV_BIT {
307 UFCV_CV0 = 0x0000003F,
308 UFCV_CV1 = 0x00003F00,
309 UFCV_CV2 = 0x003F0000,
310 UFCV_CV3 = 0x3F000000,
311};
312
313/* UFCD0/1/2/3/4 */
314enum UFCD_BIT {
315 UFCD_DV0 = 0x0000003F,
316 UFCD_DV1 = 0x00003F00,
317 UFCD_DV2 = 0x003F0000,
318 UFCD_DV3 = 0x3F000000,
319};
320
321/* SFO */
322enum SFO_BIT {
323 SFO_FPB = 0x0000003F,
324};
325
326/* RTC */
327enum RTC_BIT {
328 RTC_MFL0 = 0x00000FFF,
329 RTC_MFL1 = 0x0FFF0000,
330};
331
332/* TGC */
333enum TGC_BIT {
334 TGC_TSM0 = 0x00000001,
335 TGC_TSM1 = 0x00000002,
336 TGC_TSM2 = 0x00000004,
337 TGC_TSM3 = 0x00000008,
338 TGC_TQP = 0x00000030,
339 TGC_TQP_NONAVB = 0x00000000,
340 TGC_TQP_AVBMODE1 = 0x00000010,
341 TGC_TQP_AVBMODE2 = 0x00000030,
342 TGC_TBD0 = 0x00000300,
343 TGC_TBD1 = 0x00003000,
344 TGC_TBD2 = 0x00030000,
345 TGC_TBD3 = 0x00300000,
346};
347
348/* TCCR */
349enum TCCR_BIT {
350 TCCR_TSRQ0 = 0x00000001,
351 TCCR_TSRQ1 = 0x00000002,
352 TCCR_TSRQ2 = 0x00000004,
353 TCCR_TSRQ3 = 0x00000008,
354 TCCR_TFEN = 0x00000100,
355 TCCR_TFR = 0x00000200,
356};
357
358/* TSR */
359enum TSR_BIT {
360 TSR_CCS0 = 0x00000003,
361 TSR_CCS1 = 0x0000000C,
362 TSR_TFFL = 0x00000700,
363};
364
365/* TFA2 */
366enum TFA2_BIT {
367 TFA2_TSV = 0x0000FFFF,
368 TFA2_TST = 0x03FF0000,
369};
370
371/* DIC */
372enum DIC_BIT {
373 DIC_DPE1 = 0x00000002,
374 DIC_DPE2 = 0x00000004,
375 DIC_DPE3 = 0x00000008,
376 DIC_DPE4 = 0x00000010,
377 DIC_DPE5 = 0x00000020,
378 DIC_DPE6 = 0x00000040,
379 DIC_DPE7 = 0x00000080,
380 DIC_DPE8 = 0x00000100,
381 DIC_DPE9 = 0x00000200,
382 DIC_DPE10 = 0x00000400,
383 DIC_DPE11 = 0x00000800,
384 DIC_DPE12 = 0x00001000,
385 DIC_DPE13 = 0x00002000,
386 DIC_DPE14 = 0x00004000,
387 DIC_DPE15 = 0x00008000,
388};
389
390/* DIS */
391enum DIS_BIT {
392 DIS_DPF1 = 0x00000002,
393 DIS_DPF2 = 0x00000004,
394 DIS_DPF3 = 0x00000008,
395 DIS_DPF4 = 0x00000010,
396 DIS_DPF5 = 0x00000020,
397 DIS_DPF6 = 0x00000040,
398 DIS_DPF7 = 0x00000080,
399 DIS_DPF8 = 0x00000100,
400 DIS_DPF9 = 0x00000200,
401 DIS_DPF10 = 0x00000400,
402 DIS_DPF11 = 0x00000800,
403 DIS_DPF12 = 0x00001000,
404 DIS_DPF13 = 0x00002000,
405 DIS_DPF14 = 0x00004000,
406 DIS_DPF15 = 0x00008000,
407};
408
409/* EIC */
410enum EIC_BIT {
411 EIC_MREE = 0x00000001,
412 EIC_MTEE = 0x00000002,
413 EIC_QEE = 0x00000004,
414 EIC_SEE = 0x00000008,
415 EIC_CLLE0 = 0x00000010,
416 EIC_CLLE1 = 0x00000020,
417 EIC_CULE0 = 0x00000040,
418 EIC_CULE1 = 0x00000080,
419 EIC_TFFE = 0x00000100,
420};
421
422/* EIS */
423enum EIS_BIT {
424 EIS_MREF = 0x00000001,
425 EIS_MTEF = 0x00000002,
426 EIS_QEF = 0x00000004,
427 EIS_SEF = 0x00000008,
428 EIS_CLLF0 = 0x00000010,
429 EIS_CLLF1 = 0x00000020,
430 EIS_CULF0 = 0x00000040,
431 EIS_CULF1 = 0x00000080,
432 EIS_TFFF = 0x00000100,
433 EIS_QFS = 0x00010000,
434};
435
436/* RIC0 */
437enum RIC0_BIT {
438 RIC0_FRE0 = 0x00000001,
439 RIC0_FRE1 = 0x00000002,
440 RIC0_FRE2 = 0x00000004,
441 RIC0_FRE3 = 0x00000008,
442 RIC0_FRE4 = 0x00000010,
443 RIC0_FRE5 = 0x00000020,
444 RIC0_FRE6 = 0x00000040,
445 RIC0_FRE7 = 0x00000080,
446 RIC0_FRE8 = 0x00000100,
447 RIC0_FRE9 = 0x00000200,
448 RIC0_FRE10 = 0x00000400,
449 RIC0_FRE11 = 0x00000800,
450 RIC0_FRE12 = 0x00001000,
451 RIC0_FRE13 = 0x00002000,
452 RIC0_FRE14 = 0x00004000,
453 RIC0_FRE15 = 0x00008000,
454 RIC0_FRE16 = 0x00010000,
455 RIC0_FRE17 = 0x00020000,
456};
457
458/* RIC0 */
459enum RIS0_BIT {
460 RIS0_FRF0 = 0x00000001,
461 RIS0_FRF1 = 0x00000002,
462 RIS0_FRF2 = 0x00000004,
463 RIS0_FRF3 = 0x00000008,
464 RIS0_FRF4 = 0x00000010,
465 RIS0_FRF5 = 0x00000020,
466 RIS0_FRF6 = 0x00000040,
467 RIS0_FRF7 = 0x00000080,
468 RIS0_FRF8 = 0x00000100,
469 RIS0_FRF9 = 0x00000200,
470 RIS0_FRF10 = 0x00000400,
471 RIS0_FRF11 = 0x00000800,
472 RIS0_FRF12 = 0x00001000,
473 RIS0_FRF13 = 0x00002000,
474 RIS0_FRF14 = 0x00004000,
475 RIS0_FRF15 = 0x00008000,
476 RIS0_FRF16 = 0x00010000,
477 RIS0_FRF17 = 0x00020000,
478};
479
480/* RIC1 */
481enum RIC1_BIT {
482 RIC1_RFWE = 0x80000000,
483};
484
485/* RIS1 */
486enum RIS1_BIT {
487 RIS1_RFWF = 0x80000000,
488};
489
490/* RIC2 */
491enum RIC2_BIT {
492 RIC2_QFE0 = 0x00000001,
493 RIC2_QFE1 = 0x00000002,
494 RIC2_QFE2 = 0x00000004,
495 RIC2_QFE3 = 0x00000008,
496 RIC2_QFE4 = 0x00000010,
497 RIC2_QFE5 = 0x00000020,
498 RIC2_QFE6 = 0x00000040,
499 RIC2_QFE7 = 0x00000080,
500 RIC2_QFE8 = 0x00000100,
501 RIC2_QFE9 = 0x00000200,
502 RIC2_QFE10 = 0x00000400,
503 RIC2_QFE11 = 0x00000800,
504 RIC2_QFE12 = 0x00001000,
505 RIC2_QFE13 = 0x00002000,
506 RIC2_QFE14 = 0x00004000,
507 RIC2_QFE15 = 0x00008000,
508 RIC2_QFE16 = 0x00010000,
509 RIC2_QFE17 = 0x00020000,
510 RIC2_RFFE = 0x80000000,
511};
512
513/* RIS2 */
514enum RIS2_BIT {
515 RIS2_QFF0 = 0x00000001,
516 RIS2_QFF1 = 0x00000002,
517 RIS2_QFF2 = 0x00000004,
518 RIS2_QFF3 = 0x00000008,
519 RIS2_QFF4 = 0x00000010,
520 RIS2_QFF5 = 0x00000020,
521 RIS2_QFF6 = 0x00000040,
522 RIS2_QFF7 = 0x00000080,
523 RIS2_QFF8 = 0x00000100,
524 RIS2_QFF9 = 0x00000200,
525 RIS2_QFF10 = 0x00000400,
526 RIS2_QFF11 = 0x00000800,
527 RIS2_QFF12 = 0x00001000,
528 RIS2_QFF13 = 0x00002000,
529 RIS2_QFF14 = 0x00004000,
530 RIS2_QFF15 = 0x00008000,
531 RIS2_QFF16 = 0x00010000,
532 RIS2_QFF17 = 0x00020000,
533 RIS2_RFFF = 0x80000000,
534};
535
536/* TIC */
537enum TIC_BIT {
538 TIC_FTE0 = 0x00000001, /* Undocumented? */
539 TIC_FTE1 = 0x00000002, /* Undocumented? */
540 TIC_TFUE = 0x00000100,
541 TIC_TFWE = 0x00000200,
542};
543
544/* TIS */
545enum TIS_BIT {
546 TIS_FTF0 = 0x00000001, /* Undocumented? */
547 TIS_FTF1 = 0x00000002, /* Undocumented? */
548 TIS_TFUF = 0x00000100,
549 TIS_TFWF = 0x00000200,
550};
551
552/* ISS */
553enum ISS_BIT {
554 ISS_FRS = 0x00000001, /* Undocumented? */
555 ISS_FTS = 0x00000004, /* Undocumented? */
556 ISS_ES = 0x00000040,
557 ISS_MS = 0x00000080,
558 ISS_TFUS = 0x00000100,
559 ISS_TFWS = 0x00000200,
560 ISS_RFWS = 0x00001000,
561 ISS_CGIS = 0x00002000,
562 ISS_DPS1 = 0x00020000,
563 ISS_DPS2 = 0x00040000,
564 ISS_DPS3 = 0x00080000,
565 ISS_DPS4 = 0x00100000,
566 ISS_DPS5 = 0x00200000,
567 ISS_DPS6 = 0x00400000,
568 ISS_DPS7 = 0x00800000,
569 ISS_DPS8 = 0x01000000,
570 ISS_DPS9 = 0x02000000,
571 ISS_DPS10 = 0x04000000,
572 ISS_DPS11 = 0x08000000,
573 ISS_DPS12 = 0x10000000,
574 ISS_DPS13 = 0x20000000,
575 ISS_DPS14 = 0x40000000,
576 ISS_DPS15 = 0x80000000,
577};
578
579/* CIE (R-Car Gen3 only) */
580enum CIE_BIT {
581 CIE_CRIE = 0x00000001,
582 CIE_CTIE = 0x00000100,
583 CIE_RQFM = 0x00010000,
584 CIE_CL0M = 0x00020000,
585 CIE_RFWL = 0x00040000,
586 CIE_RFFL = 0x00080000,
587};
588
589/* GCCR */
590enum GCCR_BIT {
591 GCCR_TCR = 0x00000003,
592 GCCR_TCR_NOREQ = 0x00000000, /* No request */
593 GCCR_TCR_RESET = 0x00000001, /* gPTP/AVTP presentation timer reset */
594 GCCR_TCR_CAPTURE = 0x00000003, /* Capture value set in GCCR.TCSS */
595 GCCR_LTO = 0x00000004,
596 GCCR_LTI = 0x00000008,
597 GCCR_LPTC = 0x00000010,
598 GCCR_LMTT = 0x00000020,
599 GCCR_TCSS = 0x00000300,
600 GCCR_TCSS_GPTP = 0x00000000, /* gPTP timer value */
601 GCCR_TCSS_ADJGPTP = 0x00000100, /* Adjusted gPTP timer value */
602 GCCR_TCSS_AVTP = 0x00000200, /* AVTP presentation time value */
603};
604
605/* GTI */
606enum GTI_BIT {
607 GTI_TIV = 0x0FFFFFFF,
608};
609
610#define GTI_TIV_MAX GTI_TIV
611#define GTI_TIV_MIN 0x20
612
613/* GIC */
614enum GIC_BIT {
615 GIC_PTCE = 0x00000001, /* Undocumented? */
616 GIC_PTME = 0x00000004,
617};
618
619/* GIS */
620enum GIS_BIT {
621 GIS_PTCF = 0x00000001, /* Undocumented? */
622 GIS_PTMF = 0x00000004,
623};
624
625/* GIE (R-Car Gen3 only) */
626enum GIE_BIT {
627 GIE_PTCS = 0x00000001,
628 GIE_PTOS = 0x00000002,
629 GIE_PTMS0 = 0x00000004,
630 GIE_PTMS1 = 0x00000008,
631 GIE_PTMS2 = 0x00000010,
632 GIE_PTMS3 = 0x00000020,
633 GIE_PTMS4 = 0x00000040,
634 GIE_PTMS5 = 0x00000080,
635 GIE_PTMS6 = 0x00000100,
636 GIE_PTMS7 = 0x00000200,
637 GIE_ATCS0 = 0x00010000,
638 GIE_ATCS1 = 0x00020000,
639 GIE_ATCS2 = 0x00040000,
640 GIE_ATCS3 = 0x00080000,
641 GIE_ATCS4 = 0x00100000,
642 GIE_ATCS5 = 0x00200000,
643 GIE_ATCS6 = 0x00400000,
644 GIE_ATCS7 = 0x00800000,
645 GIE_ATCS8 = 0x01000000,
646 GIE_ATCS9 = 0x02000000,
647 GIE_ATCS10 = 0x04000000,
648 GIE_ATCS11 = 0x08000000,
649 GIE_ATCS12 = 0x10000000,
650 GIE_ATCS13 = 0x20000000,
651 GIE_ATCS14 = 0x40000000,
652 GIE_ATCS15 = 0x80000000,
653};
654
655/* GID (R-Car Gen3 only) */
656enum GID_BIT {
657 GID_PTCD = 0x00000001,
658 GID_PTOD = 0x00000002,
659 GID_PTMD0 = 0x00000004,
660 GID_PTMD1 = 0x00000008,
661 GID_PTMD2 = 0x00000010,
662 GID_PTMD3 = 0x00000020,
663 GID_PTMD4 = 0x00000040,
664 GID_PTMD5 = 0x00000080,
665 GID_PTMD6 = 0x00000100,
666 GID_PTMD7 = 0x00000200,
667 GID_ATCD0 = 0x00010000,
668 GID_ATCD1 = 0x00020000,
669 GID_ATCD2 = 0x00040000,
670 GID_ATCD3 = 0x00080000,
671 GID_ATCD4 = 0x00100000,
672 GID_ATCD5 = 0x00200000,
673 GID_ATCD6 = 0x00400000,
674 GID_ATCD7 = 0x00800000,
675 GID_ATCD8 = 0x01000000,
676 GID_ATCD9 = 0x02000000,
677 GID_ATCD10 = 0x04000000,
678 GID_ATCD11 = 0x08000000,
679 GID_ATCD12 = 0x10000000,
680 GID_ATCD13 = 0x20000000,
681 GID_ATCD14 = 0x40000000,
682 GID_ATCD15 = 0x80000000,
683};
684
685/* RIE0 (R-Car Gen3 only) */
686enum RIE0_BIT {
687 RIE0_FRS0 = 0x00000001,
688 RIE0_FRS1 = 0x00000002,
689 RIE0_FRS2 = 0x00000004,
690 RIE0_FRS3 = 0x00000008,
691 RIE0_FRS4 = 0x00000010,
692 RIE0_FRS5 = 0x00000020,
693 RIE0_FRS6 = 0x00000040,
694 RIE0_FRS7 = 0x00000080,
695 RIE0_FRS8 = 0x00000100,
696 RIE0_FRS9 = 0x00000200,
697 RIE0_FRS10 = 0x00000400,
698 RIE0_FRS11 = 0x00000800,
699 RIE0_FRS12 = 0x00001000,
700 RIE0_FRS13 = 0x00002000,
701 RIE0_FRS14 = 0x00004000,
702 RIE0_FRS15 = 0x00008000,
703 RIE0_FRS16 = 0x00010000,
704 RIE0_FRS17 = 0x00020000,
705};
706
707/* RID0 (R-Car Gen3 only) */
708enum RID0_BIT {
709 RID0_FRD0 = 0x00000001,
710 RID0_FRD1 = 0x00000002,
711 RID0_FRD2 = 0x00000004,
712 RID0_FRD3 = 0x00000008,
713 RID0_FRD4 = 0x00000010,
714 RID0_FRD5 = 0x00000020,
715 RID0_FRD6 = 0x00000040,
716 RID0_FRD7 = 0x00000080,
717 RID0_FRD8 = 0x00000100,
718 RID0_FRD9 = 0x00000200,
719 RID0_FRD10 = 0x00000400,
720 RID0_FRD11 = 0x00000800,
721 RID0_FRD12 = 0x00001000,
722 RID0_FRD13 = 0x00002000,
723 RID0_FRD14 = 0x00004000,
724 RID0_FRD15 = 0x00008000,
725 RID0_FRD16 = 0x00010000,
726 RID0_FRD17 = 0x00020000,
727};
728
729/* RIE2 (R-Car Gen3 only) */
730enum RIE2_BIT {
731 RIE2_QFS0 = 0x00000001,
732 RIE2_QFS1 = 0x00000002,
733 RIE2_QFS2 = 0x00000004,
734 RIE2_QFS3 = 0x00000008,
735 RIE2_QFS4 = 0x00000010,
736 RIE2_QFS5 = 0x00000020,
737 RIE2_QFS6 = 0x00000040,
738 RIE2_QFS7 = 0x00000080,
739 RIE2_QFS8 = 0x00000100,
740 RIE2_QFS9 = 0x00000200,
741 RIE2_QFS10 = 0x00000400,
742 RIE2_QFS11 = 0x00000800,
743 RIE2_QFS12 = 0x00001000,
744 RIE2_QFS13 = 0x00002000,
745 RIE2_QFS14 = 0x00004000,
746 RIE2_QFS15 = 0x00008000,
747 RIE2_QFS16 = 0x00010000,
748 RIE2_QFS17 = 0x00020000,
749 RIE2_RFFS = 0x80000000,
750};
751
752/* RID2 (R-Car Gen3 only) */
753enum RID2_BIT {
754 RID2_QFD0 = 0x00000001,
755 RID2_QFD1 = 0x00000002,
756 RID2_QFD2 = 0x00000004,
757 RID2_QFD3 = 0x00000008,
758 RID2_QFD4 = 0x00000010,
759 RID2_QFD5 = 0x00000020,
760 RID2_QFD6 = 0x00000040,
761 RID2_QFD7 = 0x00000080,
762 RID2_QFD8 = 0x00000100,
763 RID2_QFD9 = 0x00000200,
764 RID2_QFD10 = 0x00000400,
765 RID2_QFD11 = 0x00000800,
766 RID2_QFD12 = 0x00001000,
767 RID2_QFD13 = 0x00002000,
768 RID2_QFD14 = 0x00004000,
769 RID2_QFD15 = 0x00008000,
770 RID2_QFD16 = 0x00010000,
771 RID2_QFD17 = 0x00020000,
772 RID2_RFFD = 0x80000000,
773};
774
775/* TIE (R-Car Gen3 only) */
776enum TIE_BIT {
777 TIE_FTS0 = 0x00000001,
778 TIE_FTS1 = 0x00000002,
779 TIE_FTS2 = 0x00000004,
780 TIE_FTS3 = 0x00000008,
781 TIE_TFUS = 0x00000100,
782 TIE_TFWS = 0x00000200,
783 TIE_MFUS = 0x00000400,
784 TIE_MFWS = 0x00000800,
785 TIE_TDPS0 = 0x00010000,
786 TIE_TDPS1 = 0x00020000,
787 TIE_TDPS2 = 0x00040000,
788 TIE_TDPS3 = 0x00080000,
789};
790
791/* TID (R-Car Gen3 only) */
792enum TID_BIT {
793 TID_FTD0 = 0x00000001,
794 TID_FTD1 = 0x00000002,
795 TID_FTD2 = 0x00000004,
796 TID_FTD3 = 0x00000008,
797 TID_TFUD = 0x00000100,
798 TID_TFWD = 0x00000200,
799 TID_MFUD = 0x00000400,
800 TID_MFWD = 0x00000800,
801 TID_TDPD0 = 0x00010000,
802 TID_TDPD1 = 0x00020000,
803 TID_TDPD2 = 0x00040000,
804 TID_TDPD3 = 0x00080000,
805};
806
807/* ECMR */
808enum ECMR_BIT {
809 ECMR_PRM = 0x00000001,
810 ECMR_DM = 0x00000002,
811 ECMR_TE = 0x00000020,
812 ECMR_RE = 0x00000040,
813 ECMR_MPDE = 0x00000200,
814 ECMR_TXF = 0x00010000, /* Undocumented? */
815 ECMR_RXF = 0x00020000,
816 ECMR_PFR = 0x00040000,
817 ECMR_ZPF = 0x00080000, /* Undocumented? */
818 ECMR_RZPF = 0x00100000,
819 ECMR_DPAD = 0x00200000,
820 ECMR_RCSC = 0x00800000,
821 ECMR_TRCCM = 0x04000000,
822};
823
824/* ECSR */
825enum ECSR_BIT {
826 ECSR_ICD = 0x00000001,
827 ECSR_MPD = 0x00000002,
828 ECSR_LCHNG = 0x00000004,
829 ECSR_PHYI = 0x00000008,
830};
831
832/* ECSIPR */
833enum ECSIPR_BIT {
834 ECSIPR_ICDIP = 0x00000001,
835 ECSIPR_MPDIP = 0x00000002,
836 ECSIPR_LCHNGIP = 0x00000004, /* Undocumented? */
837};
838
839/* PIR */
840enum PIR_BIT {
841 PIR_MDC = 0x00000001,
842 PIR_MMD = 0x00000002,
843 PIR_MDO = 0x00000004,
844 PIR_MDI = 0x00000008,
845};
846
847/* PSR */
848enum PSR_BIT {
849 PSR_LMON = 0x00000001,
850};
851
852/* PIPR */
853enum PIPR_BIT {
854 PIPR_PHYIP = 0x00000001,
855};
856
857/* MPR */
858enum MPR_BIT {
859 MPR_MP = 0x0000ffff,
860};
861
862/* GECMR */
863enum GECMR_BIT {
864 GECMR_SPEED = 0x00000001,
865 GECMR_SPEED_100 = 0x00000000,
866 GECMR_SPEED_1000 = 0x00000001,
867};
868
869/* The Ethernet AVB descriptor definitions. */
870struct ravb_desc {
871 __le16 ds; /* Descriptor size */
872 u8 cc; /* Content control MSBs (reserved) */
873 u8 die_dt; /* Descriptor interrupt enable and type */
874 __le32 dptr; /* Descriptor pointer */
875};
876
877#define DPTR_ALIGN 4 /* Required descriptor pointer alignment */
878
879enum DIE_DT {
880 /* Frame data */
881 DT_FMID = 0x40,
882 DT_FSTART = 0x50,
883 DT_FEND = 0x60,
884 DT_FSINGLE = 0x70,
885 /* Chain control */
886 DT_LINK = 0x80,
887 DT_LINKFIX = 0x90,
888 DT_EOS = 0xa0,
889 /* HW/SW arbitration */
890 DT_FEMPTY = 0xc0,
891 DT_FEMPTY_IS = 0xd0,
892 DT_FEMPTY_IC = 0xe0,
893 DT_FEMPTY_ND = 0xf0,
894 DT_LEMPTY = 0x20,
895 DT_EEMPTY = 0x30,
896};
897
898struct ravb_rx_desc {
899 __le16 ds_cc; /* Descriptor size and content control LSBs */
900 u8 msc; /* MAC status code */
901 u8 die_dt; /* Descriptor interrupt enable and type */
902 __le32 dptr; /* Descpriptor pointer */
903};
904
905struct ravb_ex_rx_desc {
906 __le16 ds_cc; /* Descriptor size and content control lower bits */
907 u8 msc; /* MAC status code */
908 u8 die_dt; /* Descriptor interrupt enable and type */
909 __le32 dptr; /* Descpriptor pointer */
910 __le32 ts_n; /* Timestampe nsec */
911 __le32 ts_sl; /* Timestamp low */
912 __le16 ts_sh; /* Timestamp high */
913 __le16 res; /* Reserved bits */
914};
915
916enum RX_DS_CC_BIT {
917 RX_DS = 0x0fff, /* Data size */
918 RX_TR = 0x1000, /* Truncation indication */
919 RX_EI = 0x2000, /* Error indication */
920 RX_PS = 0xc000, /* Padding selection */
921};
922
923/* E-MAC status code */
924enum MSC_BIT {
925 MSC_CRC = 0x01, /* Frame CRC error */
926 MSC_RFE = 0x02, /* Frame reception error (flagged by PHY) */
927 MSC_RTSF = 0x04, /* Frame length error (frame too short) */
928 MSC_RTLF = 0x08, /* Frame length error (frame too long) */
929 MSC_FRE = 0x10, /* Fraction error (not a multiple of 8 bits) */
930 MSC_CRL = 0x20, /* Carrier lost */
931 MSC_CEEF = 0x40, /* Carrier extension error */
932 MSC_MC = 0x80, /* Multicast frame reception */
933};
934
935struct ravb_tx_desc {
936 __le16 ds_tagl; /* Descriptor size and frame tag LSBs */
937 u8 tagh_tsr; /* Frame tag MSBs and timestamp storage request bit */
938 u8 die_dt; /* Descriptor interrupt enable and type */
939 __le32 dptr; /* Descpriptor pointer */
940};
941
942enum TX_DS_TAGL_BIT {
943 TX_DS = 0x0fff, /* Data size */
944 TX_TAGL = 0xf000, /* Frame tag LSBs */
945};
946
947enum TX_TAGH_TSR_BIT {
948 TX_TAGH = 0x3f, /* Frame tag MSBs */
949 TX_TSR = 0x40, /* Timestamp storage request */
950};
951enum RAVB_QUEUE {
952 RAVB_BE = 0, /* Best Effort Queue */
953 RAVB_NC, /* Network Control Queue */
954};
955
956#define DBAT_ENTRY_NUM 22
957#define RX_QUEUE_OFFSET 4
958#define NUM_RX_QUEUE 2
959#define NUM_TX_QUEUE 2
960#define NUM_TX_DESC 2 /* TX descriptors per packet */
961
962struct ravb_tstamp_skb {
963 struct list_head list;
964 struct sk_buff *skb;
965 u16 tag;
966};
967
968struct ravb_ptp_perout {
969 u32 target;
970 u32 period;
971};
972
973#define N_EXT_TS 1
974#define N_PER_OUT 1
975
976struct ravb_ptp {
977 struct ptp_clock *clock;
978 struct ptp_clock_info info;
979 u32 default_addend;
980 u32 current_addend;
981 int extts[N_EXT_TS];
982 struct ravb_ptp_perout perout[N_PER_OUT];
983};
984
985enum ravb_chip_id {
986 RCAR_GEN2,
987 RCAR_GEN3,
988};
989
990struct ravb_private {
991 struct net_device *ndev;
992 struct platform_device *pdev;
993 void __iomem *addr;
994 struct clk *clk;
995 struct mdiobb_ctrl mdiobb;
996 u32 num_rx_ring[NUM_RX_QUEUE];
997 u32 num_tx_ring[NUM_TX_QUEUE];
998 u32 desc_bat_size;
999 dma_addr_t desc_bat_dma;
1000 struct ravb_desc *desc_bat;
1001 dma_addr_t rx_desc_dma[NUM_RX_QUEUE];
1002 dma_addr_t tx_desc_dma[NUM_TX_QUEUE];
1003 struct ravb_ex_rx_desc *rx_ring[NUM_RX_QUEUE];
1004 struct ravb_tx_desc *tx_ring[NUM_TX_QUEUE];
1005 void *tx_align[NUM_TX_QUEUE];
1006 struct sk_buff **rx_skb[NUM_RX_QUEUE];
1007 struct sk_buff **tx_skb[NUM_TX_QUEUE];
1008 u32 rx_over_errors;
1009 u32 rx_fifo_errors;
1010 struct net_device_stats stats[NUM_RX_QUEUE];
1011 u32 tstamp_tx_ctrl;
1012 u32 tstamp_rx_ctrl;
1013 struct list_head ts_skb_list;
1014 u32 ts_skb_tag;
1015 struct ravb_ptp ptp;
1016 spinlock_t lock; /* Register access lock */
1017 u32 cur_rx[NUM_RX_QUEUE]; /* Consumer ring indices */
1018 u32 dirty_rx[NUM_RX_QUEUE]; /* Producer ring indices */
1019 u32 cur_tx[NUM_TX_QUEUE];
1020 u32 dirty_tx[NUM_TX_QUEUE];
1021 u32 rx_buf_sz; /* Based on MTU+slack. */
1022 struct napi_struct napi[NUM_RX_QUEUE];
1023 struct work_struct work;
1024 /* MII transceiver section. */
1025 struct mii_bus *mii_bus; /* MDIO bus control */
1026 int link;
1027 phy_interface_t phy_interface;
1028 int msg_enable;
1029 int speed;
1030 int duplex;
1031 int emac_irq;
1032 enum ravb_chip_id chip_id;
1033 int rx_irqs[NUM_RX_QUEUE];
1034 int tx_irqs[NUM_TX_QUEUE];
1035
1036 unsigned no_avb_link:1;
1037 unsigned avb_link_active_low:1;
1038 unsigned wol_enabled:1;
1039};
1040
1041static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg)
1042{
1043 struct ravb_private *priv = netdev_priv(ndev);
1044
1045 return ioread32(priv->addr + reg);
1046}
1047
1048static inline void ravb_write(struct net_device *ndev, u32 data,
1049 enum ravb_reg reg)
1050{
1051 struct ravb_private *priv = netdev_priv(ndev);
1052
1053 iowrite32(data, priv->addr + reg);
1054}
1055
1056void ravb_modify(struct net_device *ndev, enum ravb_reg reg, u32 clear,
1057 u32 set);
1058int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value);
1059
1060void ravb_ptp_interrupt(struct net_device *ndev);
1061void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev);
1062void ravb_ptp_stop(struct net_device *ndev);
1063
1064#endif /* #ifndef __RAVB_H__ */
1/* SPDX-License-Identifier: GPL-2.0 */
2/* Renesas Ethernet AVB device driver
3 *
4 * Copyright (C) 2014-2015 Renesas Electronics Corporation
5 * Copyright (C) 2015 Renesas Solutions Corp.
6 * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
7 *
8 * Based on the SuperH Ethernet driver
9 */
10
11#ifndef __RAVB_H__
12#define __RAVB_H__
13
14#include <linux/interrupt.h>
15#include <linux/io.h>
16#include <linux/kernel.h>
17#include <linux/mdio-bitbang.h>
18#include <linux/netdevice.h>
19#include <linux/phy.h>
20#include <linux/platform_device.h>
21#include <linux/ptp_clock_kernel.h>
22#include <net/page_pool/types.h>
23
24#define BE_TX_RING_SIZE 64 /* TX ring size for Best Effort */
25#define BE_RX_RING_SIZE 1024 /* RX ring size for Best Effort */
26#define NC_TX_RING_SIZE 64 /* TX ring size for Network Control */
27#define NC_RX_RING_SIZE 64 /* RX ring size for Network Control */
28#define BE_TX_RING_MIN 64
29#define BE_RX_RING_MIN 64
30#define BE_TX_RING_MAX 1024
31#define BE_RX_RING_MAX 2048
32
33#define PKT_BUF_SZ 1538
34
35/* Driver's parameters */
36#define RAVB_ALIGN 128
37
38/* Hardware time stamp */
39#define RAVB_TXTSTAMP_VALID 0x00000001 /* TX timestamp valid */
40#define RAVB_TXTSTAMP_ENABLED 0x00000010 /* Enable TX timestamping */
41
42#define RAVB_RXTSTAMP_VALID 0x00000001 /* RX timestamp valid */
43#define RAVB_RXTSTAMP_TYPE 0x00000006 /* RX type mask */
44#define RAVB_RXTSTAMP_TYPE_V2_L2_EVENT 0x00000002
45#define RAVB_RXTSTAMP_TYPE_ALL 0x00000006
46#define RAVB_RXTSTAMP_ENABLED 0x00000010 /* Enable RX timestamping */
47
48enum ravb_reg {
49 /* AVB-DMAC registers */
50 CCC = 0x0000,
51 DBAT = 0x0004,
52 DLR = 0x0008,
53 CSR = 0x000C,
54 CDAR0 = 0x0010,
55 CDAR1 = 0x0014,
56 CDAR2 = 0x0018,
57 CDAR3 = 0x001C,
58 CDAR4 = 0x0020,
59 CDAR5 = 0x0024,
60 CDAR6 = 0x0028,
61 CDAR7 = 0x002C,
62 CDAR8 = 0x0030,
63 CDAR9 = 0x0034,
64 CDAR10 = 0x0038,
65 CDAR11 = 0x003C,
66 CDAR12 = 0x0040,
67 CDAR13 = 0x0044,
68 CDAR14 = 0x0048,
69 CDAR15 = 0x004C,
70 CDAR16 = 0x0050,
71 CDAR17 = 0x0054,
72 CDAR18 = 0x0058,
73 CDAR19 = 0x005C,
74 CDAR20 = 0x0060,
75 CDAR21 = 0x0064,
76 ESR = 0x0088,
77 APSR = 0x008C, /* R-Car Gen3 only */
78 RCR = 0x0090,
79 RQC0 = 0x0094,
80 RQC1 = 0x0098,
81 RQC2 = 0x009C,
82 RQC3 = 0x00A0,
83 RQC4 = 0x00A4,
84 RPC = 0x00B0,
85 RTC = 0x00B4, /* R-Car Gen3 and RZ/G2L only */
86 UFCW = 0x00BC,
87 UFCS = 0x00C0,
88 UFCV0 = 0x00C4,
89 UFCV1 = 0x00C8,
90 UFCV2 = 0x00CC,
91 UFCV3 = 0x00D0,
92 UFCV4 = 0x00D4,
93 UFCD0 = 0x00E0,
94 UFCD1 = 0x00E4,
95 UFCD2 = 0x00E8,
96 UFCD3 = 0x00EC,
97 UFCD4 = 0x00F0,
98 SFO = 0x00FC,
99 SFP0 = 0x0100,
100 SFP1 = 0x0104,
101 SFP2 = 0x0108,
102 SFP3 = 0x010C,
103 SFP4 = 0x0110,
104 SFP5 = 0x0114,
105 SFP6 = 0x0118,
106 SFP7 = 0x011C,
107 SFP8 = 0x0120,
108 SFP9 = 0x0124,
109 SFP10 = 0x0128,
110 SFP11 = 0x012C,
111 SFP12 = 0x0130,
112 SFP13 = 0x0134,
113 SFP14 = 0x0138,
114 SFP15 = 0x013C,
115 SFP16 = 0x0140,
116 SFP17 = 0x0144,
117 SFP18 = 0x0148,
118 SFP19 = 0x014C,
119 SFP20 = 0x0150,
120 SFP21 = 0x0154,
121 SFP22 = 0x0158,
122 SFP23 = 0x015C,
123 SFP24 = 0x0160,
124 SFP25 = 0x0164,
125 SFP26 = 0x0168,
126 SFP27 = 0x016C,
127 SFP28 = 0x0170,
128 SFP29 = 0x0174,
129 SFP30 = 0x0178,
130 SFP31 = 0x017C,
131 SFM0 = 0x01C0,
132 SFM1 = 0x01C4,
133 TGC = 0x0300,
134 TCCR = 0x0304,
135 TSR = 0x0308,
136 TFA0 = 0x0310,
137 TFA1 = 0x0314,
138 TFA2 = 0x0318,
139 CIVR0 = 0x0320,
140 CIVR1 = 0x0324,
141 CDVR0 = 0x0328,
142 CDVR1 = 0x032C,
143 CUL0 = 0x0330,
144 CUL1 = 0x0334,
145 CLL0 = 0x0338,
146 CLL1 = 0x033C,
147 DIC = 0x0350,
148 DIS = 0x0354,
149 EIC = 0x0358,
150 EIS = 0x035C,
151 RIC0 = 0x0360,
152 RIS0 = 0x0364,
153 RIC1 = 0x0368,
154 RIS1 = 0x036C,
155 RIC2 = 0x0370,
156 RIS2 = 0x0374,
157 TIC = 0x0378,
158 TIS = 0x037C,
159 ISS = 0x0380,
160 CIE = 0x0384, /* R-Car Gen3 only */
161 GCCR = 0x0390,
162 GMTT = 0x0394,
163 GPTC = 0x0398,
164 GTI = 0x039C,
165 GTO0 = 0x03A0,
166 GTO1 = 0x03A4,
167 GTO2 = 0x03A8,
168 GIC = 0x03AC,
169 GIS = 0x03B0,
170 GCPT = 0x03B4, /* Documented for R-Car Gen3 only */
171 GCT0 = 0x03B8,
172 GCT1 = 0x03BC,
173 GCT2 = 0x03C0,
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 */
183
184 /* E-MAC registers */
185 ECMR = 0x0500,
186 RFLR = 0x0508,
187 ECSR = 0x0510,
188 ECSIPR = 0x0518,
189 PIR = 0x0520,
190 PSR = 0x0528,
191 PIPR = 0x052c,
192 CXR31 = 0x0530, /* RZ/G2L only */
193 CXR35 = 0x0540, /* RZ/G2L only */
194 MPR = 0x0558,
195 PFTCR = 0x055c,
196 PFRCR = 0x0560,
197 GECMR = 0x05b0,
198 MAHR = 0x05c0,
199 MALR = 0x05c8,
200 TROCR = 0x0700, /* R-Car Gen3 and RZ/G2L only */
201 CXR41 = 0x0708, /* RZ/G2L only */
202 CXR42 = 0x0710, /* RZ/G2L only */
203 CEFCR = 0x0740,
204 FRECR = 0x0748,
205 TSFRCR = 0x0750,
206 TLFRCR = 0x0758,
207 RFCR = 0x0760,
208 MAFCR = 0x0778,
209
210 /* TOE registers (RZ/G2L only) */
211 CSR0 = 0x0800,
212 CSR1 = 0x0804,
213 CSR2 = 0x0808,
214};
215
216
217/* Register bits of the Ethernet AVB */
218/* CCC */
219enum CCC_BIT {
220 CCC_OPC = 0x00000003,
221 CCC_OPC_RESET = 0x00000000,
222 CCC_OPC_CONFIG = 0x00000001,
223 CCC_OPC_OPERATION = 0x00000002,
224 CCC_GAC = 0x00000080,
225 CCC_DTSR = 0x00000100,
226 CCC_CSEL = 0x00030000,
227 CCC_CSEL_HPB = 0x00010000,
228 CCC_CSEL_ETH_TX = 0x00020000,
229 CCC_CSEL_GMII_REF = 0x00030000,
230 CCC_LBME = 0x01000000,
231};
232
233/* CSR */
234enum CSR_BIT {
235 CSR_OPS = 0x0000000F,
236 CSR_OPS_RESET = 0x00000001,
237 CSR_OPS_CONFIG = 0x00000002,
238 CSR_OPS_OPERATION = 0x00000004,
239 CSR_OPS_STANDBY = 0x00000008, /* Documented for R-Car Gen3 only */
240 CSR_DTS = 0x00000100,
241 CSR_TPO0 = 0x00010000,
242 CSR_TPO1 = 0x00020000,
243 CSR_TPO2 = 0x00040000,
244 CSR_TPO3 = 0x00080000,
245 CSR_RPO = 0x00100000,
246};
247
248/* ESR */
249enum ESR_BIT {
250 ESR_EQN = 0x0000001F,
251 ESR_ET = 0x00000F00,
252 ESR_EIL = 0x00001000,
253};
254
255/* APSR (R-Car Gen3 only) */
256enum APSR_BIT {
257 APSR_MEMS = 0x00000002, /* Undocumented */
258 APSR_CMSW = 0x00000010,
259 APSR_RDM = 0x00002000,
260 APSR_TDM = 0x00004000,
261 APSR_MIISELECT = 0x01000000, /* R-Car V4M only */
262};
263
264/* RCR */
265enum RCR_BIT {
266 RCR_EFFS = 0x00000001,
267 RCR_ENCF = 0x00000002,
268 RCR_ESF = 0x0000000C,
269 RCR_ETS0 = 0x00000010,
270 RCR_ETS2 = 0x00000020,
271 RCR_RFCL = 0x1FFF0000,
272};
273
274/* RQC0/1/2/3/4 */
275enum RQC_BIT {
276 RQC_RSM0 = 0x00000003,
277 RQC_UFCC0 = 0x00000030,
278 RQC_RSM1 = 0x00000300,
279 RQC_UFCC1 = 0x00003000,
280 RQC_RSM2 = 0x00030000,
281 RQC_UFCC2 = 0x00300000,
282 RQC_RSM3 = 0x03000000,
283 RQC_UFCC3 = 0x30000000,
284};
285
286/* RPC */
287enum RPC_BIT {
288 RPC_PCNT = 0x00000700,
289 RPC_DCNT = 0x00FF0000,
290};
291
292/* UFCW */
293enum UFCW_BIT {
294 UFCW_WL0 = 0x0000003F,
295 UFCW_WL1 = 0x00003F00,
296 UFCW_WL2 = 0x003F0000,
297 UFCW_WL3 = 0x3F000000,
298};
299
300/* UFCS */
301enum UFCS_BIT {
302 UFCS_SL0 = 0x0000003F,
303 UFCS_SL1 = 0x00003F00,
304 UFCS_SL2 = 0x003F0000,
305 UFCS_SL3 = 0x3F000000,
306};
307
308/* UFCV0/1/2/3/4 */
309enum UFCV_BIT {
310 UFCV_CV0 = 0x0000003F,
311 UFCV_CV1 = 0x00003F00,
312 UFCV_CV2 = 0x003F0000,
313 UFCV_CV3 = 0x3F000000,
314};
315
316/* UFCD0/1/2/3/4 */
317enum UFCD_BIT {
318 UFCD_DV0 = 0x0000003F,
319 UFCD_DV1 = 0x00003F00,
320 UFCD_DV2 = 0x003F0000,
321 UFCD_DV3 = 0x3F000000,
322};
323
324/* SFO */
325enum SFO_BIT {
326 SFO_FBP = 0x0000003F,
327};
328
329/* RTC */
330enum RTC_BIT {
331 RTC_MFL0 = 0x00000FFF,
332 RTC_MFL1 = 0x0FFF0000,
333};
334
335/* TGC */
336enum TGC_BIT {
337 TGC_TSM0 = 0x00000001,
338 TGC_TSM1 = 0x00000002,
339 TGC_TSM2 = 0x00000004,
340 TGC_TSM3 = 0x00000008,
341 TGC_TQP = 0x00000030,
342 TGC_TQP_NONAVB = 0x00000000,
343 TGC_TQP_AVBMODE1 = 0x00000010,
344 TGC_TQP_AVBMODE2 = 0x00000030,
345 TGC_TBD0 = 0x00000300,
346 TGC_TBD1 = 0x00003000,
347 TGC_TBD2 = 0x00030000,
348 TGC_TBD3 = 0x00300000,
349};
350
351/* TCCR */
352enum TCCR_BIT {
353 TCCR_TSRQ0 = 0x00000001,
354 TCCR_TSRQ1 = 0x00000002,
355 TCCR_TSRQ2 = 0x00000004,
356 TCCR_TSRQ3 = 0x00000008,
357 TCCR_TFEN = 0x00000100,
358 TCCR_TFR = 0x00000200,
359};
360
361/* TSR */
362enum TSR_BIT {
363 TSR_CCS0 = 0x00000003,
364 TSR_CCS1 = 0x0000000C,
365 TSR_TFFL = 0x00000700,
366};
367
368/* TFA2 */
369enum TFA2_BIT {
370 TFA2_TSV = 0x0000FFFF,
371 TFA2_TST = 0x03FF0000,
372};
373
374/* DIC */
375enum DIC_BIT {
376 DIC_DPE1 = 0x00000002,
377 DIC_DPE2 = 0x00000004,
378 DIC_DPE3 = 0x00000008,
379 DIC_DPE4 = 0x00000010,
380 DIC_DPE5 = 0x00000020,
381 DIC_DPE6 = 0x00000040,
382 DIC_DPE7 = 0x00000080,
383 DIC_DPE8 = 0x00000100,
384 DIC_DPE9 = 0x00000200,
385 DIC_DPE10 = 0x00000400,
386 DIC_DPE11 = 0x00000800,
387 DIC_DPE12 = 0x00001000,
388 DIC_DPE13 = 0x00002000,
389 DIC_DPE14 = 0x00004000,
390 DIC_DPE15 = 0x00008000,
391};
392
393/* DIS */
394enum DIS_BIT {
395 DIS_DPF1 = 0x00000002,
396 DIS_DPF2 = 0x00000004,
397 DIS_DPF3 = 0x00000008,
398 DIS_DPF4 = 0x00000010,
399 DIS_DPF5 = 0x00000020,
400 DIS_DPF6 = 0x00000040,
401 DIS_DPF7 = 0x00000080,
402 DIS_DPF8 = 0x00000100,
403 DIS_DPF9 = 0x00000200,
404 DIS_DPF10 = 0x00000400,
405 DIS_DPF11 = 0x00000800,
406 DIS_DPF12 = 0x00001000,
407 DIS_DPF13 = 0x00002000,
408 DIS_DPF14 = 0x00004000,
409 DIS_DPF15 = 0x00008000,
410};
411
412/* EIC */
413enum EIC_BIT {
414 EIC_MREE = 0x00000001,
415 EIC_MTEE = 0x00000002,
416 EIC_QEE = 0x00000004,
417 EIC_SEE = 0x00000008,
418 EIC_CLLE0 = 0x00000010,
419 EIC_CLLE1 = 0x00000020,
420 EIC_CULE0 = 0x00000040,
421 EIC_CULE1 = 0x00000080,
422 EIC_TFFE = 0x00000100,
423};
424
425/* EIS */
426enum EIS_BIT {
427 EIS_MREF = 0x00000001,
428 EIS_MTEF = 0x00000002,
429 EIS_QEF = 0x00000004,
430 EIS_SEF = 0x00000008,
431 EIS_CLLF0 = 0x00000010,
432 EIS_CLLF1 = 0x00000020,
433 EIS_CULF0 = 0x00000040,
434 EIS_CULF1 = 0x00000080,
435 EIS_TFFF = 0x00000100,
436 EIS_QFS = 0x00010000,
437 EIS_RESERVED = (GENMASK(31, 17) | GENMASK(15, 11)),
438};
439
440/* RIC0 */
441enum RIC0_BIT {
442 RIC0_FRE0 = 0x00000001,
443 RIC0_FRE1 = 0x00000002,
444 RIC0_FRE2 = 0x00000004,
445 RIC0_FRE3 = 0x00000008,
446 RIC0_FRE4 = 0x00000010,
447 RIC0_FRE5 = 0x00000020,
448 RIC0_FRE6 = 0x00000040,
449 RIC0_FRE7 = 0x00000080,
450 RIC0_FRE8 = 0x00000100,
451 RIC0_FRE9 = 0x00000200,
452 RIC0_FRE10 = 0x00000400,
453 RIC0_FRE11 = 0x00000800,
454 RIC0_FRE12 = 0x00001000,
455 RIC0_FRE13 = 0x00002000,
456 RIC0_FRE14 = 0x00004000,
457 RIC0_FRE15 = 0x00008000,
458 RIC0_FRE16 = 0x00010000,
459 RIC0_FRE17 = 0x00020000,
460};
461
462/* RIC0 */
463enum RIS0_BIT {
464 RIS0_FRF0 = 0x00000001,
465 RIS0_FRF1 = 0x00000002,
466 RIS0_FRF2 = 0x00000004,
467 RIS0_FRF3 = 0x00000008,
468 RIS0_FRF4 = 0x00000010,
469 RIS0_FRF5 = 0x00000020,
470 RIS0_FRF6 = 0x00000040,
471 RIS0_FRF7 = 0x00000080,
472 RIS0_FRF8 = 0x00000100,
473 RIS0_FRF9 = 0x00000200,
474 RIS0_FRF10 = 0x00000400,
475 RIS0_FRF11 = 0x00000800,
476 RIS0_FRF12 = 0x00001000,
477 RIS0_FRF13 = 0x00002000,
478 RIS0_FRF14 = 0x00004000,
479 RIS0_FRF15 = 0x00008000,
480 RIS0_FRF16 = 0x00010000,
481 RIS0_FRF17 = 0x00020000,
482 RIS0_RESERVED = GENMASK(31, 18),
483};
484
485/* RIC1 */
486enum RIC1_BIT {
487 RIC1_RFWE = 0x80000000,
488};
489
490/* RIS1 */
491enum RIS1_BIT {
492 RIS1_RFWF = 0x80000000,
493};
494
495/* RIC2 */
496enum RIC2_BIT {
497 RIC2_QFE0 = 0x00000001,
498 RIC2_QFE1 = 0x00000002,
499 RIC2_QFE2 = 0x00000004,
500 RIC2_QFE3 = 0x00000008,
501 RIC2_QFE4 = 0x00000010,
502 RIC2_QFE5 = 0x00000020,
503 RIC2_QFE6 = 0x00000040,
504 RIC2_QFE7 = 0x00000080,
505 RIC2_QFE8 = 0x00000100,
506 RIC2_QFE9 = 0x00000200,
507 RIC2_QFE10 = 0x00000400,
508 RIC2_QFE11 = 0x00000800,
509 RIC2_QFE12 = 0x00001000,
510 RIC2_QFE13 = 0x00002000,
511 RIC2_QFE14 = 0x00004000,
512 RIC2_QFE15 = 0x00008000,
513 RIC2_QFE16 = 0x00010000,
514 RIC2_QFE17 = 0x00020000,
515 RIC2_RFFE = 0x80000000,
516};
517
518/* RIS2 */
519enum RIS2_BIT {
520 RIS2_QFF0 = 0x00000001,
521 RIS2_QFF1 = 0x00000002,
522 RIS2_QFF2 = 0x00000004,
523 RIS2_QFF3 = 0x00000008,
524 RIS2_QFF4 = 0x00000010,
525 RIS2_QFF5 = 0x00000020,
526 RIS2_QFF6 = 0x00000040,
527 RIS2_QFF7 = 0x00000080,
528 RIS2_QFF8 = 0x00000100,
529 RIS2_QFF9 = 0x00000200,
530 RIS2_QFF10 = 0x00000400,
531 RIS2_QFF11 = 0x00000800,
532 RIS2_QFF12 = 0x00001000,
533 RIS2_QFF13 = 0x00002000,
534 RIS2_QFF14 = 0x00004000,
535 RIS2_QFF15 = 0x00008000,
536 RIS2_QFF16 = 0x00010000,
537 RIS2_QFF17 = 0x00020000,
538 RIS2_RFFF = 0x80000000,
539 RIS2_RESERVED = GENMASK(30, 18),
540};
541
542/* TIC */
543enum TIC_BIT {
544 TIC_FTE0 = 0x00000001, /* Documented for R-Car Gen3 only */
545 TIC_FTE1 = 0x00000002, /* Documented for R-Car Gen3 only */
546 TIC_TFUE = 0x00000100,
547 TIC_TFWE = 0x00000200,
548};
549
550/* TIS */
551enum TIS_BIT {
552 TIS_FTF0 = 0x00000001, /* Documented for R-Car Gen3 only */
553 TIS_FTF1 = 0x00000002, /* Documented for R-Car Gen3 only */
554 TIS_TFUF = 0x00000100,
555 TIS_TFWF = 0x00000200,
556 TIS_RESERVED = (GENMASK(31, 20) | GENMASK(15, 12) | GENMASK(7, 4))
557};
558
559/* ISS */
560enum ISS_BIT {
561 ISS_FRS = 0x00000001, /* Documented for R-Car Gen3 only */
562 ISS_FTS = 0x00000004, /* Documented for R-Car Gen3 only */
563 ISS_ES = 0x00000040,
564 ISS_MS = 0x00000080,
565 ISS_TFUS = 0x00000100,
566 ISS_TFWS = 0x00000200,
567 ISS_RFWS = 0x00001000,
568 ISS_CGIS = 0x00002000,
569 ISS_DPS1 = 0x00020000,
570 ISS_DPS2 = 0x00040000,
571 ISS_DPS3 = 0x00080000,
572 ISS_DPS4 = 0x00100000,
573 ISS_DPS5 = 0x00200000,
574 ISS_DPS6 = 0x00400000,
575 ISS_DPS7 = 0x00800000,
576 ISS_DPS8 = 0x01000000,
577 ISS_DPS9 = 0x02000000,
578 ISS_DPS10 = 0x04000000,
579 ISS_DPS11 = 0x08000000,
580 ISS_DPS12 = 0x10000000,
581 ISS_DPS13 = 0x20000000,
582 ISS_DPS14 = 0x40000000,
583 ISS_DPS15 = 0x80000000,
584};
585
586/* CIE (R-Car Gen3 only) */
587enum CIE_BIT {
588 CIE_CRIE = 0x00000001,
589 CIE_CTIE = 0x00000100,
590 CIE_RQFM = 0x00010000,
591 CIE_CL0M = 0x00020000,
592 CIE_RFWL = 0x00040000,
593 CIE_RFFL = 0x00080000,
594};
595
596/* GCCR */
597enum GCCR_BIT {
598 GCCR_TCR = 0x00000003,
599 GCCR_TCR_NOREQ = 0x00000000, /* No request */
600 GCCR_TCR_RESET = 0x00000001, /* gPTP/AVTP presentation timer reset */
601 GCCR_TCR_CAPTURE = 0x00000003, /* Capture value set in GCCR.TCSS */
602 GCCR_LTO = 0x00000004,
603 GCCR_LTI = 0x00000008,
604 GCCR_LPTC = 0x00000010,
605 GCCR_LMTT = 0x00000020,
606 GCCR_TCSS = 0x00000300,
607 GCCR_TCSS_GPTP = 0x00000000, /* gPTP timer value */
608 GCCR_TCSS_ADJGPTP = 0x00000100, /* Adjusted gPTP timer value */
609 GCCR_TCSS_AVTP = 0x00000200, /* AVTP presentation time value */
610};
611
612/* GTI */
613enum GTI_BIT {
614 GTI_TIV = 0x0FFFFFFF,
615};
616
617#define GTI_TIV_MAX GTI_TIV
618#define GTI_TIV_MIN 0x20
619
620/* GIC */
621enum GIC_BIT {
622 GIC_PTCE = 0x00000001, /* Documented for R-Car Gen3 only */
623 GIC_PTME = 0x00000004,
624};
625
626/* GIS */
627enum GIS_BIT {
628 GIS_PTCF = 0x00000001, /* Documented for R-Car Gen3 only */
629 GIS_PTMF = 0x00000004,
630 GIS_RESERVED = GENMASK(15, 10),
631};
632
633/* GIE (R-Car Gen3 only) */
634enum GIE_BIT {
635 GIE_PTCS = 0x00000001,
636 GIE_PTOS = 0x00000002,
637 GIE_PTMS0 = 0x00000004,
638 GIE_PTMS1 = 0x00000008,
639 GIE_PTMS2 = 0x00000010,
640 GIE_PTMS3 = 0x00000020,
641 GIE_PTMS4 = 0x00000040,
642 GIE_PTMS5 = 0x00000080,
643 GIE_PTMS6 = 0x00000100,
644 GIE_PTMS7 = 0x00000200,
645 GIE_ATCS0 = 0x00010000,
646 GIE_ATCS1 = 0x00020000,
647 GIE_ATCS2 = 0x00040000,
648 GIE_ATCS3 = 0x00080000,
649 GIE_ATCS4 = 0x00100000,
650 GIE_ATCS5 = 0x00200000,
651 GIE_ATCS6 = 0x00400000,
652 GIE_ATCS7 = 0x00800000,
653 GIE_ATCS8 = 0x01000000,
654 GIE_ATCS9 = 0x02000000,
655 GIE_ATCS10 = 0x04000000,
656 GIE_ATCS11 = 0x08000000,
657 GIE_ATCS12 = 0x10000000,
658 GIE_ATCS13 = 0x20000000,
659 GIE_ATCS14 = 0x40000000,
660 GIE_ATCS15 = 0x80000000,
661};
662
663/* GID (R-Car Gen3 only) */
664enum GID_BIT {
665 GID_PTCD = 0x00000001,
666 GID_PTOD = 0x00000002,
667 GID_PTMD0 = 0x00000004,
668 GID_PTMD1 = 0x00000008,
669 GID_PTMD2 = 0x00000010,
670 GID_PTMD3 = 0x00000020,
671 GID_PTMD4 = 0x00000040,
672 GID_PTMD5 = 0x00000080,
673 GID_PTMD6 = 0x00000100,
674 GID_PTMD7 = 0x00000200,
675 GID_ATCD0 = 0x00010000,
676 GID_ATCD1 = 0x00020000,
677 GID_ATCD2 = 0x00040000,
678 GID_ATCD3 = 0x00080000,
679 GID_ATCD4 = 0x00100000,
680 GID_ATCD5 = 0x00200000,
681 GID_ATCD6 = 0x00400000,
682 GID_ATCD7 = 0x00800000,
683 GID_ATCD8 = 0x01000000,
684 GID_ATCD9 = 0x02000000,
685 GID_ATCD10 = 0x04000000,
686 GID_ATCD11 = 0x08000000,
687 GID_ATCD12 = 0x10000000,
688 GID_ATCD13 = 0x20000000,
689 GID_ATCD14 = 0x40000000,
690 GID_ATCD15 = 0x80000000,
691};
692
693/* RIE0 (R-Car Gen3 only) */
694enum RIE0_BIT {
695 RIE0_FRS0 = 0x00000001,
696 RIE0_FRS1 = 0x00000002,
697 RIE0_FRS2 = 0x00000004,
698 RIE0_FRS3 = 0x00000008,
699 RIE0_FRS4 = 0x00000010,
700 RIE0_FRS5 = 0x00000020,
701 RIE0_FRS6 = 0x00000040,
702 RIE0_FRS7 = 0x00000080,
703 RIE0_FRS8 = 0x00000100,
704 RIE0_FRS9 = 0x00000200,
705 RIE0_FRS10 = 0x00000400,
706 RIE0_FRS11 = 0x00000800,
707 RIE0_FRS12 = 0x00001000,
708 RIE0_FRS13 = 0x00002000,
709 RIE0_FRS14 = 0x00004000,
710 RIE0_FRS15 = 0x00008000,
711 RIE0_FRS16 = 0x00010000,
712 RIE0_FRS17 = 0x00020000,
713};
714
715/* RID0 (R-Car Gen3 only) */
716enum RID0_BIT {
717 RID0_FRD0 = 0x00000001,
718 RID0_FRD1 = 0x00000002,
719 RID0_FRD2 = 0x00000004,
720 RID0_FRD3 = 0x00000008,
721 RID0_FRD4 = 0x00000010,
722 RID0_FRD5 = 0x00000020,
723 RID0_FRD6 = 0x00000040,
724 RID0_FRD7 = 0x00000080,
725 RID0_FRD8 = 0x00000100,
726 RID0_FRD9 = 0x00000200,
727 RID0_FRD10 = 0x00000400,
728 RID0_FRD11 = 0x00000800,
729 RID0_FRD12 = 0x00001000,
730 RID0_FRD13 = 0x00002000,
731 RID0_FRD14 = 0x00004000,
732 RID0_FRD15 = 0x00008000,
733 RID0_FRD16 = 0x00010000,
734 RID0_FRD17 = 0x00020000,
735};
736
737/* RIE2 (R-Car Gen3 only) */
738enum RIE2_BIT {
739 RIE2_QFS0 = 0x00000001,
740 RIE2_QFS1 = 0x00000002,
741 RIE2_QFS2 = 0x00000004,
742 RIE2_QFS3 = 0x00000008,
743 RIE2_QFS4 = 0x00000010,
744 RIE2_QFS5 = 0x00000020,
745 RIE2_QFS6 = 0x00000040,
746 RIE2_QFS7 = 0x00000080,
747 RIE2_QFS8 = 0x00000100,
748 RIE2_QFS9 = 0x00000200,
749 RIE2_QFS10 = 0x00000400,
750 RIE2_QFS11 = 0x00000800,
751 RIE2_QFS12 = 0x00001000,
752 RIE2_QFS13 = 0x00002000,
753 RIE2_QFS14 = 0x00004000,
754 RIE2_QFS15 = 0x00008000,
755 RIE2_QFS16 = 0x00010000,
756 RIE2_QFS17 = 0x00020000,
757 RIE2_RFFS = 0x80000000,
758};
759
760/* RID2 (R-Car Gen3 only) */
761enum RID2_BIT {
762 RID2_QFD0 = 0x00000001,
763 RID2_QFD1 = 0x00000002,
764 RID2_QFD2 = 0x00000004,
765 RID2_QFD3 = 0x00000008,
766 RID2_QFD4 = 0x00000010,
767 RID2_QFD5 = 0x00000020,
768 RID2_QFD6 = 0x00000040,
769 RID2_QFD7 = 0x00000080,
770 RID2_QFD8 = 0x00000100,
771 RID2_QFD9 = 0x00000200,
772 RID2_QFD10 = 0x00000400,
773 RID2_QFD11 = 0x00000800,
774 RID2_QFD12 = 0x00001000,
775 RID2_QFD13 = 0x00002000,
776 RID2_QFD14 = 0x00004000,
777 RID2_QFD15 = 0x00008000,
778 RID2_QFD16 = 0x00010000,
779 RID2_QFD17 = 0x00020000,
780 RID2_RFFD = 0x80000000,
781};
782
783/* TIE (R-Car Gen3 only) */
784enum TIE_BIT {
785 TIE_FTS0 = 0x00000001,
786 TIE_FTS1 = 0x00000002,
787 TIE_FTS2 = 0x00000004,
788 TIE_FTS3 = 0x00000008,
789 TIE_TFUS = 0x00000100,
790 TIE_TFWS = 0x00000200,
791 TIE_MFUS = 0x00000400,
792 TIE_MFWS = 0x00000800,
793 TIE_TDPS0 = 0x00010000,
794 TIE_TDPS1 = 0x00020000,
795 TIE_TDPS2 = 0x00040000,
796 TIE_TDPS3 = 0x00080000,
797};
798
799/* TID (R-Car Gen3 only) */
800enum TID_BIT {
801 TID_FTD0 = 0x00000001,
802 TID_FTD1 = 0x00000002,
803 TID_FTD2 = 0x00000004,
804 TID_FTD3 = 0x00000008,
805 TID_TFUD = 0x00000100,
806 TID_TFWD = 0x00000200,
807 TID_MFUD = 0x00000400,
808 TID_MFWD = 0x00000800,
809 TID_TDPD0 = 0x00010000,
810 TID_TDPD1 = 0x00020000,
811 TID_TDPD2 = 0x00040000,
812 TID_TDPD3 = 0x00080000,
813};
814
815/* ECMR */
816enum ECMR_BIT {
817 ECMR_PRM = 0x00000001,
818 ECMR_DM = 0x00000002,
819 ECMR_TE = 0x00000020,
820 ECMR_RE = 0x00000040,
821 ECMR_MPDE = 0x00000200,
822 ECMR_TXF = 0x00010000, /* Documented for R-Car Gen3 only */
823 ECMR_RXF = 0x00020000,
824 ECMR_PFR = 0x00040000,
825 ECMR_ZPF = 0x00080000, /* Documented for R-Car Gen3 and RZ/G2L */
826 ECMR_RZPF = 0x00100000,
827 ECMR_DPAD = 0x00200000,
828 ECMR_RCSC = 0x00800000,
829 ECMR_RCPT = 0x02000000, /* Documented for RZ/G2L only */
830 ECMR_TRCCM = 0x04000000,
831};
832
833/* ECSR */
834enum ECSR_BIT {
835 ECSR_ICD = 0x00000001,
836 ECSR_MPD = 0x00000002,
837 ECSR_LCHNG = 0x00000004,
838 ECSR_PHYI = 0x00000008,
839 ECSR_PFRI = 0x00000010, /* Documented for R-Car Gen3 and RZ/G2L */
840};
841
842/* ECSIPR */
843enum ECSIPR_BIT {
844 ECSIPR_ICDIP = 0x00000001,
845 ECSIPR_MPDIP = 0x00000002,
846 ECSIPR_LCHNGIP = 0x00000004,
847};
848
849/* PIR */
850enum PIR_BIT {
851 PIR_MDC = 0x00000001,
852 PIR_MMD = 0x00000002,
853 PIR_MDO = 0x00000004,
854 PIR_MDI = 0x00000008,
855};
856
857/* PSR */
858enum PSR_BIT {
859 PSR_LMON = 0x00000001,
860};
861
862/* PIPR */
863enum PIPR_BIT {
864 PIPR_PHYIP = 0x00000001,
865};
866
867/* MPR */
868enum MPR_BIT {
869 MPR_MP = 0x0000ffff,
870};
871
872/* GECMR */
873enum GECMR_BIT {
874 GECMR_SPEED = 0x00000001,
875 GECMR_SPEED_100 = 0x00000000,
876 GECMR_SPEED_1000 = 0x00000001,
877 GBETH_GECMR_SPEED = 0x00000030,
878 GBETH_GECMR_SPEED_10 = 0x00000000,
879 GBETH_GECMR_SPEED_100 = 0x00000010,
880 GBETH_GECMR_SPEED_1000 = 0x00000020,
881};
882
883/* The Ethernet AVB descriptor definitions. */
884struct ravb_desc {
885 __le16 ds; /* Descriptor size */
886 u8 cc; /* Content control MSBs (reserved) */
887 u8 die_dt; /* Descriptor interrupt enable and type */
888 __le32 dptr; /* Descriptor pointer */
889};
890
891#define DPTR_ALIGN 4 /* Required descriptor pointer alignment */
892
893enum DIE_DT {
894 /* Frame data */
895 DT_FMID = 0x40,
896 DT_FSTART = 0x50,
897 DT_FEND = 0x60,
898 DT_FSINGLE = 0x70,
899 /* Chain control */
900 DT_LINK = 0x80,
901 DT_LINKFIX = 0x90,
902 DT_EOS = 0xa0,
903 /* HW/SW arbitration */
904 DT_FEMPTY = 0xc0,
905 DT_FEMPTY_IS = 0xd0,
906 DT_FEMPTY_IC = 0xe0,
907 DT_FEMPTY_ND = 0xf0,
908 DT_LEMPTY = 0x20,
909 DT_EEMPTY = 0x30,
910};
911
912struct ravb_rx_desc {
913 __le16 ds_cc; /* Descriptor size and content control LSBs */
914 u8 msc; /* MAC status code */
915 u8 die_dt; /* Descriptor interrupt enable and type */
916 __le32 dptr; /* Descpriptor pointer */
917};
918
919struct ravb_ex_rx_desc {
920 __le16 ds_cc; /* Descriptor size and content control lower bits */
921 u8 msc; /* MAC status code */
922 u8 die_dt; /* Descriptor interrupt enable and type */
923 __le32 dptr; /* Descpriptor pointer */
924 __le32 ts_n; /* Timestampe nsec */
925 __le32 ts_sl; /* Timestamp low */
926 __le16 ts_sh; /* Timestamp high */
927 __le16 res; /* Reserved bits */
928};
929
930enum RX_DS_CC_BIT {
931 RX_DS = 0x0fff, /* Data size */
932 RX_TR = 0x1000, /* Truncation indication */
933 RX_EI = 0x2000, /* Error indication */
934 RX_PS = 0xc000, /* Padding selection */
935};
936
937/* E-MAC status code */
938enum MSC_BIT {
939 MSC_CRC = 0x01, /* Frame CRC error */
940 MSC_RFE = 0x02, /* Frame reception error (flagged by PHY) */
941 MSC_RTSF = 0x04, /* Frame length error (frame too short) */
942 MSC_RTLF = 0x08, /* Frame length error (frame too long) */
943 MSC_FRE = 0x10, /* Fraction error (not a multiple of 8 bits) */
944 MSC_CRL = 0x20, /* Carrier lost */
945 MSC_CEEF = 0x40, /* Carrier extension error */
946 MSC_MC = 0x80, /* Multicast frame reception */
947};
948
949struct ravb_tx_desc {
950 __le16 ds_tagl; /* Descriptor size and frame tag LSBs */
951 u8 tagh_tsr; /* Frame tag MSBs and timestamp storage request bit */
952 u8 die_dt; /* Descriptor interrupt enable and type */
953 __le32 dptr; /* Descpriptor pointer */
954};
955
956enum TX_DS_TAGL_BIT {
957 TX_DS = 0x0fff, /* Data size */
958 TX_TAGL = 0xf000, /* Frame tag LSBs */
959};
960
961enum TX_TAGH_TSR_BIT {
962 TX_TAGH = 0x3f, /* Frame tag MSBs */
963 TX_TSR = 0x40, /* Timestamp storage request */
964};
965enum RAVB_QUEUE {
966 RAVB_BE = 0, /* Best Effort Queue */
967 RAVB_NC, /* Network Control Queue */
968};
969
970enum CXR31_BIT {
971 CXR31_SEL_LINK0 = 0x00000001,
972 CXR31_SEL_LINK1 = 0x00000008,
973};
974
975enum CXR35_BIT {
976 CXR35_SEL_XMII = 0x00000003,
977 CXR35_SEL_XMII_RGMII = 0x00000000,
978 CXR35_SEL_XMII_MII = 0x00000002,
979 CXR35_HALFCYC_CLKSW = 0xffff0000,
980};
981
982enum CSR0_BIT {
983 CSR0_TPE = 0x00000010,
984 CSR0_RPE = 0x00000020,
985};
986
987enum CSR1_BIT {
988 CSR1_TIP4 = 0x00000001,
989 CSR1_TTCP4 = 0x00000010,
990 CSR1_TUDP4 = 0x00000020,
991 CSR1_TICMP4 = 0x00000040,
992 CSR1_TTCP6 = 0x00100000,
993 CSR1_TUDP6 = 0x00200000,
994 CSR1_TICMP6 = 0x00400000,
995 CSR1_THOP = 0x01000000,
996 CSR1_TROUT = 0x02000000,
997 CSR1_TAHD = 0x04000000,
998 CSR1_TDHD = 0x08000000,
999};
1000
1001#define CSR1_CSUM_ENABLE (CSR1_TTCP4 | CSR1_TUDP4 | CSR1_TTCP6 | CSR1_TUDP6)
1002
1003enum CSR2_BIT {
1004 CSR2_RIP4 = 0x00000001,
1005 CSR2_RTCP4 = 0x00000010,
1006 CSR2_RUDP4 = 0x00000020,
1007 CSR2_RICMP4 = 0x00000040,
1008 CSR2_RTCP6 = 0x00100000,
1009 CSR2_RUDP6 = 0x00200000,
1010 CSR2_RICMP6 = 0x00400000,
1011 CSR2_RHOP = 0x01000000,
1012 CSR2_RROUT = 0x02000000,
1013 CSR2_RAHD = 0x04000000,
1014 CSR2_RDHD = 0x08000000,
1015};
1016
1017#define CSR2_CSUM_ENABLE (CSR2_RTCP4 | CSR2_RUDP4 | CSR2_RICMP4 | \
1018 CSR2_RTCP6 | CSR2_RUDP6 | CSR2_RICMP6)
1019
1020#define DBAT_ENTRY_NUM 22
1021#define RX_QUEUE_OFFSET 4
1022#define NUM_RX_QUEUE 2
1023#define NUM_TX_QUEUE 2
1024
1025struct ravb_tstamp_skb {
1026 struct list_head list;
1027 struct sk_buff *skb;
1028 u16 tag;
1029};
1030
1031struct ravb_ptp_perout {
1032 u32 target;
1033 u32 period;
1034};
1035
1036#define N_EXT_TS 1
1037#define N_PER_OUT 1
1038
1039struct ravb_ptp {
1040 struct ptp_clock *clock;
1041 struct ptp_clock_info info;
1042 u32 default_addend;
1043 u32 current_addend;
1044 int extts[N_EXT_TS];
1045 struct ravb_ptp_perout perout[N_PER_OUT];
1046};
1047
1048struct ravb_hw_info {
1049 int (*receive)(struct net_device *ndev, int budget, int q);
1050 void (*set_rate)(struct net_device *ndev);
1051 int (*set_feature)(struct net_device *ndev, netdev_features_t features);
1052 int (*dmac_init)(struct net_device *ndev);
1053 void (*emac_init)(struct net_device *ndev);
1054 const char (*gstrings_stats)[ETH_GSTRING_LEN];
1055 size_t gstrings_size;
1056 netdev_features_t net_hw_features;
1057 netdev_features_t net_features;
1058 netdev_features_t vlan_features;
1059 int stats_len;
1060 u32 tccr_mask;
1061 u32 tx_max_frame_size;
1062 u32 rx_max_frame_size;
1063 u32 rx_buffer_size;
1064 u32 rx_desc_size;
1065 unsigned aligned_tx: 1;
1066 unsigned coalesce_irqs:1; /* Needs software IRQ coalescing */
1067
1068 /* hardware features */
1069 unsigned internal_delay:1; /* AVB-DMAC has internal delays */
1070 unsigned tx_counters:1; /* E-MAC has TX counters */
1071 unsigned carrier_counters:1; /* E-MAC has carrier counters */
1072 unsigned multi_irqs:1; /* AVB-DMAC and E-MAC has multiple irqs */
1073 unsigned irq_en_dis:1; /* Has separate irq enable and disable regs */
1074 unsigned err_mgmt_irqs:1; /* Line1 (Err) and Line2 (Mgmt) irqs are separate */
1075 unsigned gptp:1; /* AVB-DMAC has gPTP support */
1076 unsigned ccc_gac:1; /* AVB-DMAC has gPTP support active in config mode */
1077 unsigned gptp_ref_clk:1; /* gPTP has separate reference clock */
1078 unsigned nc_queues:1; /* AVB-DMAC has RX and TX NC queues */
1079 unsigned magic_pkt:1; /* E-MAC supports magic packet detection */
1080 unsigned half_duplex:1; /* E-MAC supports half duplex mode */
1081};
1082
1083struct ravb_rx_buffer {
1084 struct page *page;
1085 unsigned int offset;
1086};
1087
1088struct ravb_private {
1089 struct net_device *ndev;
1090 struct platform_device *pdev;
1091 void __iomem *addr;
1092 struct clk *clk;
1093 struct clk *refclk;
1094 struct clk *gptp_clk;
1095 struct mdiobb_ctrl mdiobb;
1096 u32 num_rx_ring[NUM_RX_QUEUE];
1097 u32 num_tx_ring[NUM_TX_QUEUE];
1098 u32 desc_bat_size;
1099 dma_addr_t desc_bat_dma;
1100 struct ravb_desc *desc_bat;
1101 dma_addr_t rx_desc_dma[NUM_RX_QUEUE];
1102 dma_addr_t tx_desc_dma[NUM_TX_QUEUE];
1103 union {
1104 struct ravb_rx_desc *desc;
1105 struct ravb_ex_rx_desc *ex_desc;
1106 void *raw;
1107 } rx_ring[NUM_RX_QUEUE];
1108 struct ravb_tx_desc *tx_ring[NUM_TX_QUEUE];
1109 void *tx_align[NUM_TX_QUEUE];
1110 struct sk_buff *rx_1st_skb;
1111 struct page_pool *rx_pool[NUM_RX_QUEUE];
1112 struct ravb_rx_buffer *rx_buffers[NUM_RX_QUEUE];
1113 struct sk_buff **tx_skb[NUM_TX_QUEUE];
1114 u32 rx_over_errors;
1115 u32 rx_fifo_errors;
1116 struct net_device_stats stats[NUM_RX_QUEUE];
1117 u32 tstamp_tx_ctrl;
1118 u32 tstamp_rx_ctrl;
1119 struct list_head ts_skb_list;
1120 u32 ts_skb_tag;
1121 struct ravb_ptp ptp;
1122 spinlock_t lock; /* Register access lock */
1123 u32 cur_rx[NUM_RX_QUEUE]; /* Consumer ring indices */
1124 u32 dirty_rx[NUM_RX_QUEUE]; /* Producer ring indices */
1125 u32 cur_tx[NUM_TX_QUEUE];
1126 u32 dirty_tx[NUM_TX_QUEUE];
1127 struct napi_struct napi[NUM_RX_QUEUE];
1128 struct work_struct work;
1129 /* MII transceiver section. */
1130 struct mii_bus *mii_bus; /* MDIO bus control */
1131 int link;
1132 phy_interface_t phy_interface;
1133 int msg_enable;
1134 int speed;
1135 int emac_irq;
1136
1137 unsigned no_avb_link:1;
1138 unsigned avb_link_active_low:1;
1139 unsigned wol_enabled:1;
1140 unsigned rxcidm:1; /* RX Clock Internal Delay Mode */
1141 unsigned txcidm:1; /* TX Clock Internal Delay Mode */
1142 unsigned rgmii_override:1; /* Deprecated rgmii-*id behavior */
1143 unsigned int num_tx_desc; /* TX descriptors per packet */
1144
1145 int duplex;
1146
1147 const struct ravb_hw_info *info;
1148 struct reset_control *rstc;
1149
1150 u32 gti_tiv;
1151};
1152
1153static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg)
1154{
1155 struct ravb_private *priv = netdev_priv(ndev);
1156
1157 return ioread32(priv->addr + reg);
1158}
1159
1160static inline void ravb_write(struct net_device *ndev, u32 data,
1161 enum ravb_reg reg)
1162{
1163 struct ravb_private *priv = netdev_priv(ndev);
1164
1165 iowrite32(data, priv->addr + reg);
1166}
1167
1168void ravb_modify(struct net_device *ndev, enum ravb_reg reg, u32 clear,
1169 u32 set);
1170int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value);
1171
1172void ravb_ptp_interrupt(struct net_device *ndev);
1173void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev);
1174void ravb_ptp_stop(struct net_device *ndev);
1175
1176#endif /* #ifndef __RAVB_H__ */