summaryrefslogtreecommitdiffstats
path: root/include/asm-powerpc/pasemi_dma.h
blob: b4526ff3a50d4eb5bef209cf31dd1a98ad171f2f (plain)
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
/*
 * Copyright (C) 2006 PA Semi, Inc
 *
 * Hardware register layout and descriptor formats for the on-board
 * DMA engine on PA Semi PWRficient. Used by ethernet, function and security
 * drivers.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#ifndef ASM_PASEMI_DMA_H
#define ASM_PASEMI_DMA_H

/* status register layout in IOB region, at 0xfb800000 */
struct pasdma_status {
	u64 rx_sta[64];		/* RX channel status */
	u64 tx_sta[20];		/* TX channel status */
};


/* All these registers live in the PCI configuration space for the DMA PCI
 * device. Use the normal PCI config access functions for them.
 */
enum {
	PAS_DMA_CAP_TXCH  = 0x44,	/* Transmit Channel Info      */
	PAS_DMA_CAP_RXCH  = 0x48,	/* Transmit Channel Info      */
	PAS_DMA_CAP_IFI	  = 0x4c,	/* Interface Info	      */
	PAS_DMA_COM_TXCMD = 0x100,	/* Transmit Command Register  */
	PAS_DMA_COM_TXSTA = 0x104,	/* Transmit Status Register   */
	PAS_DMA_COM_RXCMD = 0x108,	/* Receive Command Register   */
	PAS_DMA_COM_RXSTA = 0x10c,	/* Receive Status Register    */
};


#define PAS_DMA_CAP_TXCH_TCHN_M	0x00ff0000 /* # of TX channels */
#define PAS_DMA_CAP_TXCH_TCHN_S	16

#define PAS_DMA_CAP_RXCH_RCHN_M	0x00ff0000 /* # of RX channels */
#define PAS_DMA_CAP_RXCH_RCHN_S	16

#define PAS_DMA_CAP_IFI_IOFF_M	0xff000000 /* Cfg reg for intf pointers */
#define PAS_DMA_CAP_IFI_IOFF_S	24
#define PAS_DMA_CAP_IFI_NIN_M	0x00ff0000 /* # of interfaces */
#define PAS_DMA_CAP_IFI_NIN_S	16

#define PAS_DMA_COM_TXCMD_EN	0x00000001 /* enable */
#define PAS_DMA_COM_TXSTA_ACT	0x00000001 /* active */
#define PAS_DMA_COM_RXCMD_EN	0x00000001 /* enable */
#define PAS_DMA_COM_RXSTA_ACT	0x00000001 /* active */


/* Per-interface and per-channel registers */
#define _PAS_DMA_RXINT_STRIDE		0x20
#define PAS_DMA_RXINT_RCMDSTA(i)	(0x200+(i)*_PAS_DMA_RXINT_STRIDE)
#define    PAS_DMA_RXINT_RCMDSTA_EN	0x00000001
#define    PAS_DMA_RXINT_RCMDSTA_ST	0x00000002
#define    PAS_DMA_RXINT_RCMDSTA_MBT	0x00000008
#define    PAS_DMA_RXINT_RCMDSTA_MDR	0x00000010
#define    PAS_DMA_RXINT_RCMDSTA_MOO	0x00000020
#define    PAS_DMA_RXINT_RCMDSTA_MBP	0x00000040
#define    PAS_DMA_RXINT_RCMDSTA_BT	0x00000800
#define    PAS_DMA_RXINT_RCMDSTA_DR	0x00001000
#define    PAS_DMA_RXINT_RCMDSTA_OO	0x00002000
#define    PAS_DMA_RXINT_RCMDSTA_BP	0x00004000
#define    PAS_DMA_RXINT_RCMDSTA_TB	0x00008000
#define    PAS_DMA_RXINT_RCMDSTA_ACT	0x00010000
#define    PAS_DMA_RXINT_RCMDSTA_DROPS_M	0xfffe0000
#define    PAS_DMA_RXINT_RCMDSTA_DROPS_S	17
#define PAS_DMA_RXINT_CFG(i)		(0x204+(i)*_PAS_DMA_RXINT_STRIDE)
#define    PAS_DMA_RXINT_CFG_RBP	0x80000000
#define    PAS_DMA_RXINT_CFG_ITRR	0x40000000
#define    PAS_DMA_RXINT_CFG_DHL_M	0x07000000
#define    PAS_DMA_RXINT_CFG_DHL_S	24
#define    PAS_DMA_RXINT_CFG_DHL(x)	(((x) << PAS_DMA_RXINT_CFG_DHL_S) & \
					 PAS_DMA_RXINT_CFG_DHL_M)
#define    PAS_DMA_RXINT_CFG_ITR	0x00400000
#define    PAS_DMA_RXINT_CFG_LW		0x00200000
#define    PAS_DMA_RXINT_CFG_L2		0x00100000
#define    PAS_DMA_RXINT_CFG_HEN	0x00080000
#define    PAS_DMA_RXINT_CFG_WIF	0x00000002
#define    PAS_DMA_RXINT_CFG_WIL	0x00000001

#define PAS_DMA_RXINT_INCR(i)		(0x210+(i)*_PAS_DMA_RXINT_STRIDE)
#define    PAS_DMA_RXINT_INCR_INCR_M	0x0000ffff
#define    PAS_DMA_RXINT_INCR_INCR_S	0
#define    PAS_DMA_RXINT_INCR_INCR(x)	((x) & 0x0000ffff)
#define PAS_DMA_RXINT_BASEL(i)		(0x218+(i)*_PAS_DMA_RXINT_STRIDE)
#define    PAS_DMA_RXINT_BASEL_BRBL(x)	((x) & ~0x3f)
#define PAS_DMA_RXINT_BASEU(i)		(0x21c+(i)*_PAS_DMA_RXINT_STRIDE)
#define    PAS_DMA_RXINT_BASEU_BRBH(x)	((x) & 0xfff)
#define    PAS_DMA_RXINT_BASEU_SIZ_M	0x3fff0000	/* # of cache lines worth of buffer ring */
#define    PAS_DMA_RXINT_BASEU_SIZ_S	16		/* 0 = 16K */
#define    PAS_DMA_RXINT_BASEU_SIZ(x)	(((x) << PAS_DMA_RXINT_BASEU_SIZ_S) & \
					 PAS_DMA_RXINT_BASEU_SIZ_M)


#define _PAS_DMA_TXCHAN_STRIDE	0x20    /* Size per channel		*/
#define _PAS_DMA_TXCHAN_TCMDSTA	0x300	/* Command / Status		*/
#define _PAS_DMA_TXCHAN_CFG	0x304	/* Configuration		*/
#define _PAS_DMA_TXCHAN_DSCRBU	0x308	/* Descriptor BU Allocation	*/
#define _PAS_DMA_TXCHAN_INCR	0x310	/* Descriptor increment		*/
#define _PAS_DMA_TXCHAN_CNT	0x314	/* Descriptor count/offset	*/
#define _PAS_DMA_TXCHAN_BASEL	0x318	/* Descriptor ring base (low)	*/
#define _PAS_DMA_TXCHAN_BASEU	0x31c	/*			(high)	*/
#define PAS_DMA_TXCHAN_TCMDSTA(c) (0x300+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define    PAS_DMA_TXCHAN_TCMDSTA_EN	0x00000001	/* Enabled */
#define    PAS_DMA_TXCHAN_TCMDSTA_ST	0x00000002	/* Stop interface */
#define    PAS_DMA_TXCHAN_TCMDSTA_ACT	0x00010000	/* Active */
#define    PAS_DMA_TXCHAN_TCMDSTA_SZ	0x00000800
#define    PAS_DMA_TXCHAN_TCMDSTA_DB	0x00000400
#define    PAS_DMA_TXCHAN_TCMDSTA_DE	0x00000200
#define    PAS_DMA_TXCHAN_TCMDSTA_DA	0x00000100
#define PAS_DMA_TXCHAN_CFG(c)     (0x304+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define    PAS_DMA_TXCHAN_CFG_TY_IFACE	0x00000000	/* Type = interface */
#define    PAS_DMA_TXCHAN_CFG_TATTR_M	0x0000003c
#define    PAS_DMA_TXCHAN_CFG_TATTR_S	2
#define    PAS_DMA_TXCHAN_CFG_TATTR(x)	(((x) << PAS_DMA_TXCHAN_CFG_TATTR_S) & \
					 PAS_DMA_TXCHAN_CFG_TATTR_M)
#define    PAS_DMA_TXCHAN_CFG_WT_M	0x000001c0
#define    PAS_DMA_TXCHAN_CFG_WT_S	6
#define    PAS_DMA_TXCHAN_CFG_WT(x)	(((x) << PAS_DMA_TXCHAN_CFG_WT_S) & \
					 PAS_DMA_TXCHAN_CFG_WT_M)
#define    PAS_DMA_TXCHAN_CFG_TRD	0x00010000	/* translate data */
#define    PAS_DMA_TXCHAN_CFG_TRR	0x00008000	/* translate rings */
#define    PAS_DMA_TXCHAN_CFG_UP	0x00004000	/* update tx descr when sent */
#define    PAS_DMA_TXCHAN_CFG_CL	0x00002000	/* Clean last line */
#define    PAS_DMA_TXCHAN_CFG_CF	0x00001000	/* Clean first line */
#define PAS_DMA_TXCHAN_INCR(c)    (0x310+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define PAS_DMA_TXCHAN_BASEL(c)   (0x318+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define    PAS_DMA_TXCHAN_BASEL_BRBL_M	0xffffffc0
#define    PAS_DMA_TXCHAN_BASEL_BRBL_S	0
#define    PAS_DMA_TXCHAN_BASEL_BRBL(x)	(((x) << PAS_DMA_TXCHAN_BASEL_BRBL_S) & \
					 PAS_DMA_TXCHAN_BASEL_BRBL_M)
#define PAS_DMA_TXCHAN_BASEU(c)   (0x31c+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define    PAS_DMA_TXCHAN_BASEU_BRBH_M	0x00000fff
#define    PAS_DMA_TXCHAN_BASEU_BRBH_S	0
#define    PAS_DMA_TXCHAN_BASEU_BRBH(x)	(((x) << PAS_DMA_TXCHAN_BASEU_BRBH_S) & \
					 PAS_DMA_TXCHAN_BASEU_BRBH_M)
/* # of cache lines worth of buffer ring */
#define    PAS_DMA_TXCHAN_BASEU_SIZ_M	0x3fff0000
#define    PAS_DMA_TXCHAN_BASEU_SIZ_S	16		/* 0 = 16K */
#define    PAS_DMA_TXCHAN_BASEU_SIZ(x)	(((x) << PAS_DMA_TXCHAN_BASEU_SIZ_S) & \
					 PAS_DMA_TXCHAN_BASEU_SIZ_M)

#define _PAS_DMA_RXCHAN_STRIDE	0x20    /* Size per channel		*/
#define _PAS_DMA_RXCHAN_CCMDSTA	0x800	/* Command / Status		*/
#define _PAS_DMA_RXCHAN_CFG	0x804	/* Configuration		*/
#define _PAS_DMA_RXCHAN_INCR	0x810	/* Descriptor increment		*/
#define _PAS_DMA_RXCHAN_CNT	0x814	/* Descriptor count/offset	*/
#define _PAS_DMA_RXCHAN_BASEL	0x818	/* Descriptor ring base (low)	*/
#define _PAS_DMA_RXCHAN_BASEU	0x81c	/*			(high)	*/
#define PAS_DMA_RXCHAN_CCMDSTA(c) (0x800+(c)*_PAS_DMA_RXCHAN_STRIDE)
#define    PAS_DMA_RXCHAN_CCMDSTA_EN	0x00000001	/* Enabled */
#define    PAS_DMA_RXCHAN_CCMDSTA_ST	0x00000002	/* Stop interface */
#define    PAS_DMA_RXCHAN_CCMDSTA_ACT	0x00010000	/* Active */
#define    PAS_DMA_RXCHAN_CCMDSTA_DU	0x00020000
#define    PAS_DMA_RXCHAN_CCMDSTA_OD	0x00002000
#define    PAS_DMA_RXCHAN_CCMDSTA_FD	0x00001000
#define    PAS_DMA_RXCHAN_CCMDSTA_DT	0x00000800
#define PAS_DMA_RXCHAN_CFG(c)     (0x804+(c)*_PAS_DMA_RXCHAN_STRIDE)
#define    PAS_DMA_RXCHAN_CFG_CTR	0x00000400
#define    PAS_DMA_RXCHAN_CFG_HBU_M	0x00000380
#define    PAS_DMA_RXCHAN_CFG_HBU_S	7
#define    PAS_DMA_RXCHAN_CFG_HBU(x)	(((x) << PAS_DMA_RXCHAN_CFG_HBU_S) & \
					 PAS_DMA_RXCHAN_CFG_HBU_M)
#define PAS_DMA_RXCHAN_INCR(c)    (0x810+(c)*_PAS_DMA_RXCHAN_STRIDE)
#define PAS_DMA_RXCHAN_BASEL(c)   (0x818+(c)*_PAS_DMA_RXCHAN_STRIDE)
#define    PAS_DMA_RXCHAN_BASEL_BRBL_M	0xffffffc0
#define    PAS_DMA_RXCHAN_BASEL_BRBL_S	0
#define    PAS_DMA_RXCHAN_BASEL_BRBL(x)	(((x) << PAS_DMA_RXCHAN_BASEL_BRBL_S) & \
					 PAS_DMA_RXCHAN_BASEL_BRBL_M)
#define PAS_DMA_RXCHAN_BASEU(c)   (0x81c+(c)*_PAS_DMA_RXCHAN_STRIDE)
#define    PAS_DMA_RXCHAN_BASEU_BRBH_M	0x00000fff
#define    PAS_DMA_RXCHAN_BASEU_BRBH_S	0
#define    PAS_DMA_RXCHAN_BASEU_BRBH(x)	(((x) << PAS_DMA_RXCHAN_BASEU_BRBH_S) & \
					 PAS_DMA_RXCHAN_BASEU_BRBH_M)
/* # of cache lines worth of buffer ring */
#define    PAS_DMA_RXCHAN_BASEU_SIZ_M	0x3fff0000
#define    PAS_DMA_RXCHAN_BASEU_SIZ_S	16		/* 0 = 16K */
#define    PAS_DMA_RXCHAN_BASEU_SIZ(x)	(((x) << PAS_DMA_RXCHAN_BASEU_SIZ_S) & \
					 PAS_DMA_RXCHAN_BASEU_SIZ_M)

#define    PAS_STATUS_PCNT_M		0x000000000000ffffull
#define    PAS_STATUS_PCNT_S		0
#define    PAS_STATUS_DCNT_M		0x00000000ffff0000ull
#define    PAS_STATUS_DCNT_S		16
#define    PAS_STATUS_BPCNT_M		0x0000ffff00000000ull
#define    PAS_STATUS_BPCNT_S		32
#define    PAS_STATUS_CAUSE_M		0xf000000000000000ull
#define    PAS_STATUS_TIMER		0x1000000000000000ull
#define    PAS_STATUS_ERROR		0x2000000000000000ull
#define    PAS_STATUS_SOFT		0x4000000000000000ull
#define    PAS_STATUS_INT		0x8000000000000000ull

#define PAS_IOB_COM_PKTHDRCNT		0x120
#define    PAS_IOB_COM_PKTHDRCNT_PKTHDR1_M	0x0fff0000
#define    PAS_IOB_COM_PKTHDRCNT_PKTHDR1_S	16
#define    PAS_IOB_COM_PKTHDRCNT_PKTHDR0_M	0x00000fff
#define    PAS_IOB_COM_PKTHDRCNT_PKTHDR0_S	0

#define PAS_IOB_DMA_RXCH_CFG(i)		(0x1100 + (i)*4)
#define    PAS_IOB_DMA_RXCH_CFG_CNTTH_M		0x00000fff
#define    PAS_IOB_DMA_RXCH_CFG_CNTTH_S		0
#define    PAS_IOB_DMA_RXCH_CFG_CNTTH(x)	(((x) << PAS_IOB_DMA_RXCH_CFG_CNTTH_S) & \
						 PAS_IOB_DMA_RXCH_CFG_CNTTH_M)
#define PAS_IOB_DMA_TXCH_CFG(i)		(0x1200 + (i)*4)
#define    PAS_IOB_DMA_TXCH_CFG_CNTTH_M		0x00000fff
#define    PAS_IOB_DMA_TXCH_CFG_CNTTH_S		0
#define    PAS_IOB_DMA_TXCH_CFG_CNTTH(x)	(((x) << PAS_IOB_DMA_TXCH_CFG_CNTTH_S) & \
						 PAS_IOB_DMA_TXCH_CFG_CNTTH_M)
#define PAS_IOB_DMA_RXCH_STAT(i)	(0x1300 + (i)*4)
#define    PAS_IOB_DMA_RXCH_STAT_INTGEN	0x00001000
#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL_M	0x00000fff
#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL_S	0
#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL(x)	(((x) << PAS_IOB_DMA_RXCH_STAT_CNTDEL_S) &\
						 PAS_IOB_DMA_RXCH_STAT_CNTDEL_M)
#define PAS_IOB_DMA_TXCH_STAT(i)	(0x1400 + (i)*4)
#define    PAS_IOB_DMA_TXCH_STAT_INTGEN	0x00001000
#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL_M	0x00000fff
#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL_S	0
#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL(x)	(((x) << PAS_IOB_DMA_TXCH_STAT_CNTDEL_S) &\
						 PAS_IOB_DMA_TXCH_STAT_CNTDEL_M)
#define PAS_IOB_DMA_RXCH_RESET(i)	(0x1500 + (i)*4)
#define    PAS_IOB_DMA_RXCH_RESET_PCNT_M	0xffff0000
#define    PAS_IOB_DMA_RXCH_RESET_PCNT_S	16
#define    PAS_IOB_DMA_RXCH_RESET_PCNT(x)	(((x) << PAS_IOB_DMA_RXCH_RESET_PCNT_S) & \
						 PAS_IOB_DMA_RXCH_RESET_PCNT_M)
#define    PAS_IOB_DMA_RXCH_RESET_PCNTRST	0x00000020
#define    PAS_IOB_DMA_RXCH_RESET_DCNTRST	0x00000010
#define    PAS_IOB_DMA_RXCH_RESET_TINTC		0x00000008
#define    PAS_IOB_DMA_RXCH_RESET_DINTC		0x00000004
#define    PAS_IOB_DMA_RXCH_RESET_SINTC		0x00000002
#define    PAS_IOB_DMA_RXCH_RESET_PINTC		0x00000001
#define PAS_IOB_DMA_TXCH_RESET(i)	(0x1600 + (i)*4)
#define    PAS_IOB_DMA_TXCH_RESET_PCNT_M	0xffff0000
#define    PAS_IOB_DMA_TXCH_RESET_PCNT_S	16
#define    PAS_IOB_DMA_TXCH_RESET_PCNT(x)	(((x) << PAS_IOB_DMA_TXCH_RESET_PCNT_S) & \
						 PAS_IOB_DMA_TXCH_RESET_PCNT_M)
#define    PAS_IOB_DMA_TXCH_RESET_PCNTRST	0x00000020
#define    PAS_IOB_DMA_TXCH_RESET_DCNTRST	0x00000010
#define    PAS_IOB_DMA_TXCH_RESET_TINTC		0x00000008
#define    PAS_IOB_DMA_TXCH_RESET_DINTC		0x00000004
#define    PAS_IOB_DMA_TXCH_RESET_SINTC		0x00000002
#define    PAS_IOB_DMA_TXCH_RESET_PINTC		0x00000001

#define PAS_IOB_DMA_COM_TIMEOUTCFG		0x1700
#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M	0x00ffffff
#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S	0
#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(x)	(((x) << PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S) & \
						 PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M)

/* Transmit descriptor fields */
#define	XCT_MACTX_T		0x8000000000000000ull
#define	XCT_MACTX_ST		0x4000000000000000ull
#define XCT_MACTX_NORES		0x0000000000000000ull
#define XCT_MACTX_8BRES		0x1000000000000000ull
#define XCT_MACTX_24BRES	0x2000000000000000ull
#define XCT_MACTX_40BRES	0x3000000000000000ull
#define XCT_MACTX_I		0x0800000000000000ull
#define XCT_MACTX_O		0x0400000000000000ull
#define XCT_MACTX_E		0x0200000000000000ull
#define XCT_MACTX_VLAN_M	0x0180000000000000ull
#define XCT_MACTX_VLAN_NOP	0x0000000000000000ull
#define XCT_MACTX_VLAN_REMOVE	0x0080000000000000ull
#define XCT_MACTX_VLAN_INSERT   0x0100000000000000ull
#define XCT_MACTX_VLAN_REPLACE  0x0180000000000000ull
#define XCT_MACTX_CRC_M		0x0060000000000000ull
#define XCT_MACTX_CRC_NOP	0x0000000000000000ull
#define XCT_MACTX_CRC_INSERT	0x0020000000000000ull
#define XCT_MACTX_CRC_PAD	0x0040000000000000ull
#define XCT_MACTX_CRC_REPLACE	0x0060000000000000ull
#define XCT_MACTX_SS		0x0010000000000000ull
#define XCT_MACTX_LLEN_M	0x00007fff00000000ull
#define XCT_MACTX_LLEN_S	32ull
#define XCT_MACTX_LLEN(x)	((((long)(x)) << XCT_MACTX_LLEN_S) & \
				 XCT_MACTX_LLEN_M)
#define XCT_MACTX_IPH_M		0x00000000f8000000ull
#define XCT_MACTX_IPH_S		27ull
#define XCT_MACTX_IPH(x)	((((long)(x)) << XCT_MACTX_IPH_S) & \
				 XCT_MACTX_IPH_M)
#define XCT_MACTX_IPO_M		0x0000000007c00000ull
#define XCT_MACTX_IPO_S		22ull
#define XCT_MACTX_IPO(x)	((((long)(x)) << XCT_MACTX_IPO_S) & \
				 XCT_MACTX_IPO_M)
#define XCT_MACTX_CSUM_M	0x0000000000000060ull
#define XCT_MACTX_CSUM_NOP	0x0000000000000000ull
#define XCT_MACTX_CSUM_TCP	0x0000000000000040ull
#define XCT_MACTX_CSUM_UDP	0x0000000000000060ull
#define XCT_MACTX_V6		0x0000000000000010ull
#define XCT_MACTX_C		0x0000000000000004ull
#define XCT_MACTX_AL2		0x0000000000000002ull

/* Receive descriptor fields */
#define	XCT_MACRX_T		0x8000000000000000ull
#define	XCT_MACRX_ST		0x4000000000000000ull
#define XCT_MACRX_RR_M		0x3000000000000000ull
#define XCT_MACRX_RR_NORES	0x0000000000000000ull
#define XCT_MACRX_RR_8BRES	0x1000000000000000ull
#define XCT_MACRX_O		0x0400000000000000ull
#define XCT_MACRX_E		0x0200000000000000ull
#define XCT_MACRX_FF		0x0100000000000000ull
#define XCT_MACRX_PF		0x0080000000000000ull
#define XCT_MACRX_OB		0x0040000000000000ull
#define XCT_MACRX_OD		0x0020000000000000ull
#define XCT_MACRX_FS		0x0010000000000000ull
#define XCT_MACRX_NB_M		0x000fc00000000000ull
#define XCT_MACRX_NB_S		46ULL
#define XCT_MACRX_NB(x)		((((long)(x)) << XCT_MACRX_NB_S) & \
				 XCT_MACRX_NB_M)
#define XCT_MACRX_LLEN_M	0x00003fff00000000ull
#define XCT_MACRX_LLEN_S	32ULL
#define XCT_MACRX_LLEN(x)	((((long)(x)) << XCT_MACRX_LLEN_S) & \
				 XCT_MACRX_LLEN_M)
#define XCT_MACRX_CRC		0x0000000080000000ull
#define XCT_MACRX_LEN_M		0x0000000060000000ull
#define XCT_MACRX_LEN_TOOSHORT	0x0000000020000000ull
#define XCT_MACRX_LEN_BELOWMIN	0x0000000040000000ull
#define XCT_MACRX_LEN_TRUNC	0x0000000060000000ull
#define XCT_MACRX_CAST_M	0x0000000018000000ull
#define XCT_MACRX_CAST_UNI	0x0000000000000000ull
#define XCT_MACRX_CAST_MULTI	0x0000000008000000ull
#define XCT_MACRX_CAST_BROAD	0x0000000010000000ull
#define XCT_MACRX_CAST_PAUSE	0x0000000018000000ull
#define XCT_MACRX_VLC_M		0x0000000006000000ull
#define XCT_MACRX_FM		0x0000000001000000ull
#define XCT_MACRX_HTY_M		0x0000000000c00000ull
#define XCT_MACRX_HTY_IPV4_OK	0x0000000000000000ull
#define XCT_MACRX_HTY_IPV6 	0x0000000000400000ull
#define XCT_MACRX_HTY_IPV4_BAD	0x0000000000800000ull
#define XCT_MACRX_HTY_NONIP	0x0000000000c00000ull
#define XCT_MACRX_IPP_M		0x00000000003f0000ull
#define XCT_MACRX_IPP_S		16
#define XCT_MACRX_CSUM_M	0x000000000000ffffull
#define XCT_MACRX_CSUM_S	0

#define XCT_PTR_T		0x8000000000000000ull
#define XCT_PTR_LEN_M		0x7ffff00000000000ull
#define XCT_PTR_LEN_S		44
#define XCT_PTR_LEN(x)		((((long)(x)) << XCT_PTR_LEN_S) & \
				 XCT_PTR_LEN_M)
#define XCT_PTR_ADDR_M		0x00000fffffffffffull
#define XCT_PTR_ADDR_S		0
#define XCT_PTR_ADDR(x)		((((long)(x)) << XCT_PTR_ADDR_S) & \
				 XCT_PTR_ADDR_M)

/* Receive interface 8byte result fields */
#define XCT_RXRES_8B_L4O_M	0xff00000000000000ull
#define XCT_RXRES_8B_L4O_S	56
#define XCT_RXRES_8B_RULE_M	0x00ffff0000000000ull
#define XCT_RXRES_8B_RULE_S	40
#define XCT_RXRES_8B_EVAL_M	0x000000ffff000000ull
#define XCT_RXRES_8B_EVAL_S	24
#define XCT_RXRES_8B_HTYPE_M	0x0000000000f00000ull
#define XCT_RXRES_8B_HASH_M	0x00000000000fffffull
#define XCT_RXRES_8B_HASH_S	0

/* Receive interface buffer fields */
#define XCT_RXB_LEN_M		0x0ffff00000000000ull
#define XCT_RXB_LEN_S		44
#define XCT_RXB_LEN(x)		((((long)(x)) << XCT_RXB_LEN_S) & \
				 XCT_RXB_LEN_M)
#define XCT_RXB_ADDR_M		0x00000fffffffffffull
#define XCT_RXB_ADDR_S		0
#define XCT_RXB_ADDR(x)		((((long)(x)) << XCT_RXB_ADDR_S) & \
				 XCT_RXB_ADDR_M)

/* Copy descriptor fields */
#define XCT_COPY_T		0x8000000000000000ull
#define XCT_COPY_ST		0x4000000000000000ull
#define XCT_COPY_RR_M		0x3000000000000000ull
#define XCT_COPY_RR_NORES	0x0000000000000000ull
#define XCT_COPY_RR_8BRES	0x1000000000000000ull
#define XCT_COPY_RR_24BRES	0x2000000000000000ull
#define XCT_COPY_RR_40BRES	0x3000000000000000ull
#define XCT_COPY_I		0x0800000000000000ull
#define XCT_COPY_O		0x0400000000000000ull
#define XCT_COPY_E		0x0200000000000000ull
#define XCT_COPY_STY_ZERO	0x01c0000000000000ull
#define XCT_COPY_DTY_PREF	0x0038000000000000ull
#define XCT_COPY_LLEN_M		0x0007ffff00000000ull
#define XCT_COPY_LLEN_S		32
#define XCT_COPY_LLEN(x)	((((long)(x)) << XCT_COPY_LLEN_S) & \
				 XCT_COPY_LLEN_M)
#define XCT_COPY_SE		0x0000000000000001ull

/* Control descriptor fields */
#define CTRL_CMD_T		0x8000000000000000ull
#define CTRL_CMD_META_EVT	0x2000000000000000ull
#define CTRL_CMD_O		0x0400000000000000ull
#define CTRL_CMD_REG_M		0x000000000000000full
#define CTRL_CMD_REG_S		0
#define CTRL_CMD_REG(x)		((((long)(x)) << CTRL_CMD_REG_S) & \
				 CTRL_CMD_REG_M)



/* Prototypes for the shared DMA functions in the platform code. */

/* DMA TX Channel type. Right now only limitations used are event types 0/1,
 * for event-triggered DMA transactions.
 */

enum pasemi_dmachan_type {
	RXCHAN = 0,		/* Any RX chan */
	TXCHAN = 1,		/* Any TX chan */
	TXCHAN_EVT0 = 0x1001,	/* TX chan in event class 0 (chan 0-9) */
	TXCHAN_EVT1 = 0x2001,	/* TX chan in event class 1 (chan 10-19) */
};

struct pasemi_dmachan {
	int		 chno;		/* Channel number */
	enum pasemi_dmachan_type chan_type;	/* TX / RX */
	u64		*status;	/* Ptr to cacheable status */
	int		 irq;		/* IRQ used by channel */
	unsigned int	 ring_size;	/* size of allocated ring */
	dma_addr_t	 ring_dma;	/* DMA address for ring */
	u64		*ring_virt;	/* Virt address for ring */
	void		*priv;		/* Ptr to start of client struct */
};

/* Read/write the different registers in the I/O Bridge, Ethernet
 * and DMA Controller
 */
extern unsigned int pasemi_read_iob_reg(unsigned int reg);
extern void pasemi_write_iob_reg(unsigned int reg, unsigned int val);

extern unsigned int pasemi_read_mac_reg(int intf, unsigned int reg);
extern void pasemi_write_mac_reg(int intf, unsigned int reg, unsigned int val);

extern unsigned int pasemi_read_dma_reg(unsigned int reg);
extern void pasemi_write_dma_reg(unsigned int reg, unsigned int val);

/* Channel management routines */

extern void *pasemi_dma_alloc_chan(enum pasemi_dmachan_type type,
				   int total_size, int offset);
extern void pasemi_dma_free_chan(struct pasemi_dmachan *chan);

extern void pasemi_dma_start_chan(const struct pasemi_dmachan *chan,
				  const u32 cmdsta);
extern int pasemi_dma_stop_chan(const struct pasemi_dmachan *chan);

/* Common routines to allocate rings and buffers */

extern int pasemi_dma_alloc_ring(struct pasemi_dmachan *chan, int ring_size);
extern void pasemi_dma_free_ring(struct pasemi_dmachan *chan);

extern void *pasemi_dma_alloc_buf(struct pasemi_dmachan *chan, int size,
				  dma_addr_t *handle);
extern void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size,
				dma_addr_t *handle);

/* Initialize the library, must be called before any other functions */
extern int pasemi_dma_init(void);

#endif /* ASM_PASEMI_DMA_H */