summaryrefslogtreecommitdiffstats
path: root/drivers/block/sata_dwc.h
blob: e2d9e0c1fce8556690552d706bf07478bf607a71 (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
/*
 * sata_dwc.h
 *
 * Synopsys DesignWare Cores (DWC) SATA host driver
 *
 * Author: Mark Miesfeld <mmiesfeld@amcc.com>
 *
 * Ported from 2.6.19.2 to 2.6.25/26 by Stefan Roese <sr@denx.de>
 * Copyright 2008 DENX Software Engineering
 *
 * Based on versions provided by AMCC and Synopsys which are:
 *          Copyright 2006 Applied Micro Circuits Corporation
 *          COPYRIGHT (C) 2005  SYNOPSYS, INC.  ALL RIGHTS RESERVED
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
/*
 * SATA support based on the chip canyonlands.
 *
 * 04-17-2009
 *		The local version of this driver for the canyonlands board
 *		does not use interrupts but polls the chip instead.
 */


#ifndef _SATA_DWC_H_
#define _SATA_DWC_H_

#define __U_BOOT__

#define HZ 100
#define READ 0
#define WRITE 1

enum {
	ATA_READID_POSTRESET	= (1 << 0),

	ATA_DNXFER_PIO		= 0,
	ATA_DNXFER_DMA		= 1,
	ATA_DNXFER_40C		= 2,
	ATA_DNXFER_FORCE_PIO	= 3,
	ATA_DNXFER_FORCE_PIO0	= 4,

	ATA_DNXFER_QUIET	= (1 << 31),
};

enum hsm_task_states {
	HSM_ST_IDLE,
	HSM_ST_FIRST,
	HSM_ST,
	HSM_ST_LAST,
	HSM_ST_ERR,
};

#define	ATA_SHORT_PAUSE		((HZ >> 6) + 1)

struct ata_queued_cmd {
	struct ata_port		*ap;
	struct ata_device	*dev;

	struct ata_taskfile	tf;
	u8			cdb[ATAPI_CDB_LEN];
	unsigned long		flags;
	unsigned int		tag;
	unsigned int		n_elem;

	int			dma_dir;
	unsigned int		sect_size;

	unsigned int		nbytes;
	unsigned int		extrabytes;
	unsigned int		curbytes;

	unsigned int		err_mask;
	struct ata_taskfile	result_tf;

	void			*private_data;
#ifndef __U_BOOT__
	void			*lldd_task;
#endif
	unsigned char		*pdata;
};

typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);

#define ATA_TAG_POISON	0xfafbfcfdU

enum {
	LIBATA_MAX_PRD		= ATA_MAX_PRD / 2,
	LIBATA_DUMB_MAX_PRD	= ATA_MAX_PRD / 4,
	ATA_MAX_PORTS		= 8,
	ATA_DEF_QUEUE		= 1,
	ATA_MAX_QUEUE		= 32,
	ATA_TAG_INTERNAL	= ATA_MAX_QUEUE - 1,
	ATA_MAX_BUS		= 2,
	ATA_DEF_BUSY_WAIT	= 10000,

	ATAPI_MAX_DRAIN		= 16 << 10,

	ATA_SHT_EMULATED	= 1,
	ATA_SHT_CMD_PER_LUN	= 1,
	ATA_SHT_THIS_ID		= -1,
	ATA_SHT_USE_CLUSTERING	= 1,

	ATA_DFLAG_LBA		= (1 << 0),
	ATA_DFLAG_LBA48		= (1 << 1),
	ATA_DFLAG_CDB_INTR	= (1 << 2),
	ATA_DFLAG_NCQ		= (1 << 3),
	ATA_DFLAG_FLUSH_EXT	= (1 << 4),
	ATA_DFLAG_ACPI_PENDING 	= (1 << 5),
	ATA_DFLAG_ACPI_FAILED	= (1 << 6),
	ATA_DFLAG_AN		= (1 << 7),
	ATA_DFLAG_HIPM		= (1 << 8),
	ATA_DFLAG_DIPM		= (1 << 9),
	ATA_DFLAG_DMADIR	= (1 << 10),
	ATA_DFLAG_CFG_MASK	= (1 << 12) - 1,

	ATA_DFLAG_PIO		= (1 << 12),
	ATA_DFLAG_NCQ_OFF	= (1 << 13),
	ATA_DFLAG_SPUNDOWN	= (1 << 14),
	ATA_DFLAG_SLEEPING	= (1 << 15),
	ATA_DFLAG_DUBIOUS_XFER	= (1 << 16),
	ATA_DFLAG_INIT_MASK	= (1 << 24) - 1,

	ATA_DFLAG_DETACH	= (1 << 24),
	ATA_DFLAG_DETACHED	= (1 << 25),

	ATA_LFLAG_HRST_TO_RESUME	= (1 << 0),
	ATA_LFLAG_SKIP_D2H_BSY		= (1 << 1),
	ATA_LFLAG_NO_SRST		= (1 << 2),
	ATA_LFLAG_ASSUME_ATA		= (1 << 3),
	ATA_LFLAG_ASSUME_SEMB		= (1 << 4),
	ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB,
	ATA_LFLAG_NO_RETRY		= (1 << 5),
	ATA_LFLAG_DISABLED		= (1 << 6),

	ATA_FLAG_SLAVE_POSS	= (1 << 0),
	ATA_FLAG_SATA		= (1 << 1),
	ATA_FLAG_NO_LEGACY	= (1 << 2),
	ATA_FLAG_MMIO		= (1 << 3),
	ATA_FLAG_SRST		= (1 << 4),
	ATA_FLAG_SATA_RESET	= (1 << 5),
	ATA_FLAG_NO_ATAPI	= (1 << 6),
	ATA_FLAG_PIO_DMA	= (1 << 7),
	ATA_FLAG_PIO_LBA48	= (1 << 8),
	ATA_FLAG_PIO_POLLING	= (1 << 9),
	ATA_FLAG_NCQ		= (1 << 10),
	ATA_FLAG_DEBUGMSG	= (1 << 13),
	ATA_FLAG_IGN_SIMPLEX	= (1 << 15),
	ATA_FLAG_NO_IORDY	= (1 << 16),
	ATA_FLAG_ACPI_SATA	= (1 << 17),
	ATA_FLAG_AN		= (1 << 18),
	ATA_FLAG_PMP		= (1 << 19),
	ATA_FLAG_IPM		= (1 << 20),

	ATA_FLAG_DISABLED	= (1 << 23),

	ATA_PFLAG_EH_PENDING		= (1 << 0),
	ATA_PFLAG_EH_IN_PROGRESS	= (1 << 1),
	ATA_PFLAG_FROZEN		= (1 << 2),
	ATA_PFLAG_RECOVERED		= (1 << 3),
	ATA_PFLAG_LOADING		= (1 << 4),
	ATA_PFLAG_UNLOADING		= (1 << 5),
	ATA_PFLAG_SCSI_HOTPLUG		= (1 << 6),
	ATA_PFLAG_INITIALIZING		= (1 << 7),
	ATA_PFLAG_RESETTING		= (1 << 8),
	ATA_PFLAG_SUSPENDED		= (1 << 17),
	ATA_PFLAG_PM_PENDING		= (1 << 18),

	ATA_QCFLAG_ACTIVE	= (1 << 0),
	ATA_QCFLAG_DMAMAP	= (1 << 1),
	ATA_QCFLAG_IO		= (1 << 3),
	ATA_QCFLAG_RESULT_TF	= (1 << 4),
	ATA_QCFLAG_CLEAR_EXCL	= (1 << 5),
	ATA_QCFLAG_QUIET	= (1 << 6),

	ATA_QCFLAG_FAILED	= (1 << 16),
	ATA_QCFLAG_SENSE_VALID	= (1 << 17),
	ATA_QCFLAG_EH_SCHEDULED	= (1 << 18),

	ATA_HOST_SIMPLEX	= (1 << 0),
	ATA_HOST_STARTED	= (1 << 1),

	ATA_TMOUT_BOOT			= 30 * 100,
	ATA_TMOUT_BOOT_QUICK		= 7 * 100,
	ATA_TMOUT_INTERNAL		= 30 * 100,
	ATA_TMOUT_INTERNAL_QUICK	= 5 * 100,

	/* FIXME: GoVault needs 2s but we can't afford that without
	 * parallel probing.  800ms is enough for iVDR disk
	 * HHD424020F7SV00.  Increase to 2secs when parallel probing
	 * is in place.
	 */
	ATA_TMOUT_FF_WAIT	= 4 * 100 / 5,

	BUS_UNKNOWN		= 0,
	BUS_DMA			= 1,
	BUS_IDLE		= 2,
	BUS_NOINTR		= 3,
	BUS_NODATA		= 4,
	BUS_TIMER		= 5,
	BUS_PIO			= 6,
	BUS_EDD			= 7,
	BUS_IDENTIFY		= 8,
	BUS_PACKET		= 9,

	PORT_UNKNOWN		= 0,
	PORT_ENABLED		= 1,
	PORT_DISABLED		= 2,

	/* encoding various smaller bitmaps into a single
	 * unsigned long bitmap
	 */
	ATA_NR_PIO_MODES	= 7,
	ATA_NR_MWDMA_MODES	= 5,
	ATA_NR_UDMA_MODES	= 8,

	ATA_SHIFT_PIO		= 0,
	ATA_SHIFT_MWDMA		= ATA_SHIFT_PIO + ATA_NR_PIO_MODES,
	ATA_SHIFT_UDMA		= ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES,

	ATA_DMA_PAD_SZ		= 4,

	ATA_ERING_SIZE		= 32,

	ATA_DEFER_LINK		= 1,
	ATA_DEFER_PORT		= 2,

	ATA_EH_DESC_LEN		= 80,

	ATA_EH_REVALIDATE	= (1 << 0),
	ATA_EH_SOFTRESET	= (1 << 1),
	ATA_EH_HARDRESET	= (1 << 2),
	ATA_EH_ENABLE_LINK	= (1 << 3),
	ATA_EH_LPM		= (1 << 4),

	ATA_EH_RESET_MASK	= ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
	ATA_EH_PERDEV_MASK	= ATA_EH_REVALIDATE,

	ATA_EHI_HOTPLUGGED	= (1 << 0),
	ATA_EHI_RESUME_LINK	= (1 << 1),
	ATA_EHI_NO_AUTOPSY	= (1 << 2),
	ATA_EHI_QUIET		= (1 << 3),

	ATA_EHI_DID_SOFTRESET	= (1 << 16),
	ATA_EHI_DID_HARDRESET	= (1 << 17),
	ATA_EHI_PRINTINFO	= (1 << 18),
	ATA_EHI_SETMODE		= (1 << 19),
	ATA_EHI_POST_SETMODE	= (1 << 20),

	ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET,
	ATA_EHI_RESET_MODIFIER_MASK = ATA_EHI_RESUME_LINK,

	ATA_EH_MAX_TRIES	= 5,

	ATA_PROBE_MAX_TRIES	= 3,
	ATA_EH_DEV_TRIES	= 3,
	ATA_EH_PMP_TRIES	= 5,
	ATA_EH_PMP_LINK_TRIES	= 3,

	SATA_PMP_SCR_TIMEOUT	= 250,

	/* Horkage types. May be set by libata or controller on drives
	(some horkage may be drive/controller pair dependant */

	ATA_HORKAGE_DIAGNOSTIC	= (1 << 0),
	ATA_HORKAGE_NODMA	= (1 << 1),
	ATA_HORKAGE_NONCQ	= (1 << 2),
	ATA_HORKAGE_MAX_SEC_128	= (1 << 3),
	ATA_HORKAGE_BROKEN_HPA	= (1 << 4),
	ATA_HORKAGE_SKIP_PM	= (1 << 5),
	ATA_HORKAGE_HPA_SIZE	= (1 << 6),
	ATA_HORKAGE_IPM		= (1 << 7),
	ATA_HORKAGE_IVB		= (1 << 8),
	ATA_HORKAGE_STUCK_ERR	= (1 << 9),

	ATA_DMA_MASK_ATA	= (1 << 0),
	ATA_DMA_MASK_ATAPI	= (1 << 1),
	ATA_DMA_MASK_CFA	= (1 << 2),

	ATAPI_READ		= 0,
	ATAPI_WRITE		= 1,
	ATAPI_READ_CD		= 2,
	ATAPI_PASS_THRU		= 3,
	ATAPI_MISC		= 4,
};

enum ata_completion_errors {
	AC_ERR_DEV		= (1 << 0),
	AC_ERR_HSM		= (1 << 1),
	AC_ERR_TIMEOUT		= (1 << 2),
	AC_ERR_MEDIA		= (1 << 3),
	AC_ERR_ATA_BUS		= (1 << 4),
	AC_ERR_HOST_BUS		= (1 << 5),
	AC_ERR_SYSTEM		= (1 << 6),
	AC_ERR_INVALID		= (1 << 7),
	AC_ERR_OTHER		= (1 << 8),
	AC_ERR_NODEV_HINT	= (1 << 9),
	AC_ERR_NCQ		= (1 << 10),
};

enum ata_xfer_mask {
	ATA_MASK_PIO	= ((1LU << ATA_NR_PIO_MODES) - 1) << ATA_SHIFT_PIO,
	ATA_MASK_MWDMA	= ((1LU << ATA_NR_MWDMA_MODES) - 1) << ATA_SHIFT_MWDMA,
	ATA_MASK_UDMA	= ((1LU << ATA_NR_UDMA_MODES) - 1) << ATA_SHIFT_UDMA,
};

struct ata_port_info {
#ifndef __U_BOOT__
	struct scsi_host_template	*sht;
#endif
	unsigned long			flags;
	unsigned long			link_flags;
	unsigned long			pio_mask;
	unsigned long			mwdma_mask;
	unsigned long			udma_mask;
#ifndef __U_BOOT__
	const struct ata_port_operations *port_ops;
	void				*private_data;
#endif
};

struct ata_ioports {
	void __iomem		*cmd_addr;
	void __iomem		*data_addr;
	void __iomem		*error_addr;
	void __iomem		*feature_addr;
	void __iomem		*nsect_addr;
	void __iomem		*lbal_addr;
	void __iomem		*lbam_addr;
	void __iomem		*lbah_addr;
	void __iomem		*device_addr;
	void __iomem		*status_addr;
	void __iomem		*command_addr;
	void __iomem		*altstatus_addr;
	void __iomem		*ctl_addr;
#ifndef __U_BOOT__
	void __iomem		*bmdma_addr;
#endif
	void __iomem		*scr_addr;
};

struct ata_host {
#ifndef __U_BOOT__
	void __iomem * const	*iomap;
	void			*private_data;
	const struct ata_port_operations *ops;
	unsigned long		flags;
	struct ata_port		*simplex_claimed;
#endif
	unsigned int		n_ports;
	struct ata_port		*ports[0];
};

#ifndef __U_BOOT__
struct ata_port_stats {
	unsigned long		unhandled_irq;
	unsigned long		idle_irq;
	unsigned long		rw_reqbuf;
};
#endif

struct ata_device {
	struct ata_link		*link;
	unsigned int		devno;
	unsigned long		flags;
	unsigned int		horkage;
#ifndef __U_BOOT__
	struct scsi_device	*sdev;
#ifdef CONFIG_ATA_ACPI
	acpi_handle		acpi_handle;
	union acpi_object	*gtf_cache;
#endif
#endif
	u64			n_sectors;
	unsigned int		class;

	union {
		u16		id[ATA_ID_WORDS];
		u32		gscr[SATA_PMP_GSCR_DWORDS];
	};
#ifndef __U_BOOT__
	u8			pio_mode;
	u8			dma_mode;
	u8			xfer_mode;
	unsigned int		xfer_shift;
#endif
	unsigned int		multi_count;
	unsigned int		max_sectors;
	unsigned int		cdb_len;
#ifndef __U_BOOT__
	unsigned long		pio_mask;
	unsigned long		mwdma_mask;
#endif
	unsigned long		udma_mask;
	u16			cylinders;
	u16			heads;
	u16			sectors;
#ifndef __U_BOOT__
	int			spdn_cnt;
#endif
};

enum dma_data_direction {
	DMA_BIDIRECTIONAL = 0,
	DMA_TO_DEVICE = 1,
	DMA_FROM_DEVICE = 2,
	DMA_NONE = 3,
};

struct ata_link {
	struct ata_port		*ap;
	int			pmp;
	unsigned int		active_tag;
	u32			sactive;
	unsigned int		flags;
	unsigned int		hw_sata_spd_limit;
#ifndef __U_BOOT__
	unsigned int		sata_spd_limit;
	unsigned int		sata_spd;
	struct ata_device	device[2];
#endif
};

struct ata_port {
	unsigned long		flags;
	unsigned int		pflags;
	unsigned int		print_id;
	unsigned int		port_no;

	struct ata_ioports	ioaddr;

	u8			ctl;
	u8			last_ctl;
	unsigned int		pio_mask;
	unsigned int		mwdma_mask;
	unsigned int		udma_mask;
	unsigned int		cbl;

	struct ata_queued_cmd	qcmd[ATA_MAX_QUEUE];
	unsigned long		qc_allocated;
	unsigned int		qc_active;
	int			nr_active_links;

	struct ata_link		link;
#ifndef __U_BOOT__
	int			nr_pmp_links;
	struct ata_link		*pmp_link;
#endif
	struct ata_link		*excl_link;
	int			nr_pmp_links;
#ifndef __U_BOOT__
	struct ata_port_stats	stats;
	struct device		*dev;
	u32			msg_enable;
#endif
	struct ata_host		*host;
	void			*port_task_data;

	unsigned int		hsm_task_state;
	void			*private_data;
	unsigned char		*pdata;
};

#endif
OpenPOWER on IntegriCloud