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55#include <linux/kernel.h>
56#include <linux/module.h>
57#include <linux/pci.h>
58#include <linux/init.h>
59#include <linux/blkdev.h>
60#include <linux/delay.h>
61#include <linux/interrupt.h>
62#include <linux/dmapool.h>
63#include <linux/dma-mapping.h>
64#include <linux/device.h>
65#include <linux/platform_device.h>
66#include <linux/ata_platform.h>
67#include <linux/mbus.h>
68#include <linux/bitops.h>
69#include <scsi/scsi_host.h>
70#include <scsi/scsi_cmnd.h>
71#include <scsi/scsi_device.h>
72#include <linux/libata.h>
73
74#define DRV_NAME "sata_mv"
75#define DRV_VERSION "1.24"
76
77enum {
78
79 MV_PRIMARY_BAR = 0,
80 MV_IO_BAR = 2,
81 MV_MISC_BAR = 3,
82
83 MV_MAJOR_REG_AREA_SZ = 0x10000,
84 MV_MINOR_REG_AREA_SZ = 0x2000,
85
86 MV_PCI_REG_BASE = 0,
87 MV_IRQ_COAL_REG_BASE = 0x18000,
88 MV_IRQ_COAL_CAUSE = (MV_IRQ_COAL_REG_BASE + 0x08),
89 MV_IRQ_COAL_CAUSE_LO = (MV_IRQ_COAL_REG_BASE + 0x88),
90 MV_IRQ_COAL_CAUSE_HI = (MV_IRQ_COAL_REG_BASE + 0x8c),
91 MV_IRQ_COAL_THRESHOLD = (MV_IRQ_COAL_REG_BASE + 0xcc),
92 MV_IRQ_COAL_TIME_THRESHOLD = (MV_IRQ_COAL_REG_BASE + 0xd0),
93
94 MV_SATAHC0_REG_BASE = 0x20000,
95 MV_FLASH_CTL_OFS = 0x1046c,
96 MV_GPIO_PORT_CTL_OFS = 0x104f0,
97 MV_RESET_CFG_OFS = 0x180d8,
98
99 MV_PCI_REG_SZ = MV_MAJOR_REG_AREA_SZ,
100 MV_SATAHC_REG_SZ = MV_MAJOR_REG_AREA_SZ,
101 MV_SATAHC_ARBTR_REG_SZ = MV_MINOR_REG_AREA_SZ,
102 MV_PORT_REG_SZ = MV_MINOR_REG_AREA_SZ,
103
104 MV_MAX_Q_DEPTH = 32,
105 MV_MAX_Q_DEPTH_MASK = MV_MAX_Q_DEPTH - 1,
106
107
108
109
110
111 MV_CRQB_Q_SZ = (32 * MV_MAX_Q_DEPTH),
112 MV_CRPB_Q_SZ = (8 * MV_MAX_Q_DEPTH),
113 MV_MAX_SG_CT = 256,
114 MV_SG_TBL_SZ = (16 * MV_MAX_SG_CT),
115
116
117 MV_PORT_HC_SHIFT = 2,
118 MV_PORTS_PER_HC = (1 << MV_PORT_HC_SHIFT),
119
120 MV_PORT_MASK = (MV_PORTS_PER_HC - 1),
121
122
123 MV_FLAG_DUAL_HC = (1 << 30),
124 MV_FLAG_IRQ_COALESCE = (1 << 29),
125
126 MV_COMMON_FLAGS = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
127 ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI |
128 ATA_FLAG_PIO_POLLING,
129
130 MV_6XXX_FLAGS = MV_FLAG_IRQ_COALESCE,
131
132 MV_GENIIE_FLAGS = MV_COMMON_FLAGS | MV_6XXX_FLAGS |
133 ATA_FLAG_PMP | ATA_FLAG_ACPI_SATA |
134 ATA_FLAG_NCQ | ATA_FLAG_AN,
135
136 CRQB_FLAG_READ = (1 << 0),
137 CRQB_TAG_SHIFT = 1,
138 CRQB_IOID_SHIFT = 6,
139 CRQB_PMP_SHIFT = 12,
140 CRQB_HOSTQ_SHIFT = 17,
141 CRQB_CMD_ADDR_SHIFT = 8,
142 CRQB_CMD_CS = (0x2 << 11),
143 CRQB_CMD_LAST = (1 << 15),
144
145 CRPB_FLAG_STATUS_SHIFT = 8,
146 CRPB_IOID_SHIFT_6 = 5,
147 CRPB_IOID_SHIFT_7 = 7,
148
149 EPRD_FLAG_END_OF_TBL = (1 << 31),
150
151
152
153 PCI_COMMAND_OFS = 0xc00,
154 PCI_COMMAND_MRDTRIG = (1 << 7),
155
156 PCI_MAIN_CMD_STS_OFS = 0xd30,
157 STOP_PCI_MASTER = (1 << 2),
158 PCI_MASTER_EMPTY = (1 << 3),
159 GLOB_SFT_RST = (1 << 4),
160
161 MV_PCI_MODE_OFS = 0xd00,
162 MV_PCI_MODE_MASK = 0x30,
163
164 MV_PCI_EXP_ROM_BAR_CTL = 0xd2c,
165 MV_PCI_DISC_TIMER = 0xd04,
166 MV_PCI_MSI_TRIGGER = 0xc38,
167 MV_PCI_SERR_MASK = 0xc28,
168 MV_PCI_XBAR_TMOUT_OFS = 0x1d04,
169 MV_PCI_ERR_LOW_ADDRESS = 0x1d40,
170 MV_PCI_ERR_HIGH_ADDRESS = 0x1d44,
171 MV_PCI_ERR_ATTRIBUTE = 0x1d48,
172 MV_PCI_ERR_COMMAND = 0x1d50,
173
174 PCI_IRQ_CAUSE_OFS = 0x1d58,
175 PCI_IRQ_MASK_OFS = 0x1d5c,
176 PCI_UNMASK_ALL_IRQS = 0x7fffff,
177
178 PCIE_IRQ_CAUSE_OFS = 0x1900,
179 PCIE_IRQ_MASK_OFS = 0x1910,
180 PCIE_UNMASK_ALL_IRQS = 0x40a,
181
182
183 PCI_HC_MAIN_IRQ_CAUSE_OFS = 0x1d60,
184 PCI_HC_MAIN_IRQ_MASK_OFS = 0x1d64,
185 SOC_HC_MAIN_IRQ_CAUSE_OFS = 0x20020,
186 SOC_HC_MAIN_IRQ_MASK_OFS = 0x20024,
187 ERR_IRQ = (1 << 0),
188 DONE_IRQ = (1 << 1),
189 HC0_IRQ_PEND = 0x1ff,
190 HC_SHIFT = 9,
191 PCI_ERR = (1 << 18),
192 TRAN_LO_DONE = (1 << 19),
193 TRAN_HI_DONE = (1 << 20),
194 PORTS_0_3_COAL_DONE = (1 << 8),
195 PORTS_4_7_COAL_DONE = (1 << 17),
196 PORTS_0_7_COAL_DONE = (1 << 21),
197 GPIO_INT = (1 << 22),
198 SELF_INT = (1 << 23),
199 TWSI_INT = (1 << 24),
200 HC_MAIN_RSVD = (0x7f << 25),
201 HC_MAIN_RSVD_5 = (0x1fff << 19),
202 HC_MAIN_RSVD_SOC = (0x3fffffb << 6),
203
204
205 HC_CFG_OFS = 0,
206
207 HC_IRQ_CAUSE_OFS = 0x14,
208 DMA_IRQ = (1 << 0),
209 HC_COAL_IRQ = (1 << 4),
210 DEV_IRQ = (1 << 8),
211
212
213 SHD_BLK_OFS = 0x100,
214 SHD_CTL_AST_OFS = 0x20,
215
216
217 SATA_STATUS_OFS = 0x300,
218 SATA_ACTIVE_OFS = 0x350,
219 SATA_FIS_IRQ_CAUSE_OFS = 0x364,
220 SATA_FIS_IRQ_AN = (1 << 9),
221
222 LTMODE_OFS = 0x30c,
223 LTMODE_BIT8 = (1 << 8),
224
225 PHY_MODE3 = 0x310,
226 PHY_MODE4 = 0x314,
227 PHY_MODE4_CFG_MASK = 0x00000003,
228 PHY_MODE4_CFG_VALUE = 0x00000001,
229 PHY_MODE4_RSVD_ZEROS = 0x5de3fffa,
230 PHY_MODE4_RSVD_ONES = 0x00000005,
231
232 PHY_MODE2 = 0x330,
233 SATA_IFCTL_OFS = 0x344,
234 SATA_TESTCTL_OFS = 0x348,
235 SATA_IFSTAT_OFS = 0x34c,
236 VENDOR_UNIQUE_FIS_OFS = 0x35c,
237
238 FISCFG_OFS = 0x360,
239 FISCFG_WAIT_DEV_ERR = (1 << 8),
240 FISCFG_SINGLE_SYNC = (1 << 16),
241
242 MV5_PHY_MODE = 0x74,
243 MV5_LTMODE_OFS = 0x30,
244 MV5_PHY_CTL_OFS = 0x0C,
245 SATA_INTERFACE_CFG_OFS = 0x050,
246
247 MV_M2_PREAMP_MASK = 0x7e0,
248
249
250 EDMA_CFG_OFS = 0,
251 EDMA_CFG_Q_DEPTH = 0x1f,
252 EDMA_CFG_NCQ = (1 << 5),
253 EDMA_CFG_NCQ_GO_ON_ERR = (1 << 14),
254 EDMA_CFG_RD_BRST_EXT = (1 << 11),
255 EDMA_CFG_WR_BUFF_LEN = (1 << 13),
256 EDMA_CFG_EDMA_FBS = (1 << 16),
257 EDMA_CFG_FBS = (1 << 26),
258
259 EDMA_ERR_IRQ_CAUSE_OFS = 0x8,
260 EDMA_ERR_IRQ_MASK_OFS = 0xc,
261 EDMA_ERR_D_PAR = (1 << 0),
262 EDMA_ERR_PRD_PAR = (1 << 1),
263 EDMA_ERR_DEV = (1 << 2),
264 EDMA_ERR_DEV_DCON = (1 << 3),
265 EDMA_ERR_DEV_CON = (1 << 4),
266 EDMA_ERR_SERR = (1 << 5),
267 EDMA_ERR_SELF_DIS = (1 << 7),
268 EDMA_ERR_SELF_DIS_5 = (1 << 8),
269 EDMA_ERR_BIST_ASYNC = (1 << 8),
270 EDMA_ERR_TRANS_IRQ_7 = (1 << 8),
271 EDMA_ERR_CRQB_PAR = (1 << 9),
272 EDMA_ERR_CRPB_PAR = (1 << 10),
273 EDMA_ERR_INTRL_PAR = (1 << 11),
274 EDMA_ERR_IORDY = (1 << 12),
275
276 EDMA_ERR_LNK_CTRL_RX = (0xf << 13),
277 EDMA_ERR_LNK_CTRL_RX_0 = (1 << 13),
278 EDMA_ERR_LNK_CTRL_RX_1 = (1 << 14),
279 EDMA_ERR_LNK_CTRL_RX_2 = (1 << 15),
280 EDMA_ERR_LNK_CTRL_RX_3 = (1 << 16),
281
282 EDMA_ERR_LNK_DATA_RX = (0xf << 17),
283
284 EDMA_ERR_LNK_CTRL_TX = (0x1f << 21),
285 EDMA_ERR_LNK_CTRL_TX_0 = (1 << 21),
286 EDMA_ERR_LNK_CTRL_TX_1 = (1 << 22),
287 EDMA_ERR_LNK_CTRL_TX_2 = (1 << 23),
288 EDMA_ERR_LNK_CTRL_TX_3 = (1 << 24),
289 EDMA_ERR_LNK_CTRL_TX_4 = (1 << 25),
290
291 EDMA_ERR_LNK_DATA_TX = (0x1f << 26),
292
293 EDMA_ERR_TRANS_PROTO = (1 << 31),
294 EDMA_ERR_OVERRUN_5 = (1 << 5),
295 EDMA_ERR_UNDERRUN_5 = (1 << 6),
296
297 EDMA_ERR_IRQ_TRANSIENT = EDMA_ERR_LNK_CTRL_RX_0 |
298 EDMA_ERR_LNK_CTRL_RX_1 |
299 EDMA_ERR_LNK_CTRL_RX_3 |
300 EDMA_ERR_LNK_CTRL_TX,
301
302 EDMA_EH_FREEZE = EDMA_ERR_D_PAR |
303 EDMA_ERR_PRD_PAR |
304 EDMA_ERR_DEV_DCON |
305 EDMA_ERR_DEV_CON |
306 EDMA_ERR_SERR |
307 EDMA_ERR_SELF_DIS |
308 EDMA_ERR_CRQB_PAR |
309 EDMA_ERR_CRPB_PAR |
310 EDMA_ERR_INTRL_PAR |
311 EDMA_ERR_IORDY |
312 EDMA_ERR_LNK_CTRL_RX_2 |
313 EDMA_ERR_LNK_DATA_RX |
314 EDMA_ERR_LNK_DATA_TX |
315 EDMA_ERR_TRANS_PROTO,
316
317 EDMA_EH_FREEZE_5 = EDMA_ERR_D_PAR |
318 EDMA_ERR_PRD_PAR |
319 EDMA_ERR_DEV_DCON |
320 EDMA_ERR_DEV_CON |
321 EDMA_ERR_OVERRUN_5 |
322 EDMA_ERR_UNDERRUN_5 |
323 EDMA_ERR_SELF_DIS_5 |
324 EDMA_ERR_CRQB_PAR |
325 EDMA_ERR_CRPB_PAR |
326 EDMA_ERR_INTRL_PAR |
327 EDMA_ERR_IORDY,
328
329 EDMA_REQ_Q_BASE_HI_OFS = 0x10,
330 EDMA_REQ_Q_IN_PTR_OFS = 0x14,
331
332 EDMA_REQ_Q_OUT_PTR_OFS = 0x18,
333 EDMA_REQ_Q_PTR_SHIFT = 5,
334
335 EDMA_RSP_Q_BASE_HI_OFS = 0x1c,
336 EDMA_RSP_Q_IN_PTR_OFS = 0x20,
337 EDMA_RSP_Q_OUT_PTR_OFS = 0x24,
338 EDMA_RSP_Q_PTR_SHIFT = 3,
339
340 EDMA_CMD_OFS = 0x28,
341 EDMA_EN = (1 << 0),
342 EDMA_DS = (1 << 1),
343 EDMA_RESET = (1 << 2),
344
345 EDMA_STATUS_OFS = 0x30,
346 EDMA_STATUS_CACHE_EMPTY = (1 << 6),
347 EDMA_STATUS_IDLE = (1 << 7),
348
349 EDMA_IORDY_TMOUT_OFS = 0x34,
350 EDMA_ARB_CFG_OFS = 0x38,
351
352 EDMA_HALTCOND_OFS = 0x60,
353
354 GEN_II_NCQ_MAX_SECTORS = 256,
355
356
357 MV_HP_FLAG_MSI = (1 << 0),
358 MV_HP_ERRATA_50XXB0 = (1 << 1),
359 MV_HP_ERRATA_50XXB2 = (1 << 2),
360 MV_HP_ERRATA_60X1B2 = (1 << 3),
361 MV_HP_ERRATA_60X1C0 = (1 << 4),
362 MV_HP_GEN_I = (1 << 6),
363 MV_HP_GEN_II = (1 << 7),
364 MV_HP_GEN_IIE = (1 << 8),
365 MV_HP_PCIE = (1 << 9),
366 MV_HP_CUT_THROUGH = (1 << 10),
367 MV_HP_FLAG_SOC = (1 << 11),
368
369
370 MV_PP_FLAG_EDMA_EN = (1 << 0),
371 MV_PP_FLAG_NCQ_EN = (1 << 1),
372 MV_PP_FLAG_FBS_EN = (1 << 2),
373 MV_PP_FLAG_DELAYED_EH = (1 << 3),
374};
375
376#define IS_GEN_I(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_I)
377#define IS_GEN_II(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_II)
378#define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE)
379#define IS_PCIE(hpriv) ((hpriv)->hp_flags & MV_HP_PCIE)
380#define IS_SOC(hpriv) ((hpriv)->hp_flags & MV_HP_FLAG_SOC)
381
382#define WINDOW_CTRL(i) (0x20030 + ((i) << 4))
383#define WINDOW_BASE(i) (0x20034 + ((i) << 4))
384
385enum {
386
387
388
389 MV_DMA_BOUNDARY = 0xffffU,
390
391
392
393
394 EDMA_REQ_Q_BASE_LO_MASK = 0xfffffc00U,
395
396
397 EDMA_RSP_Q_BASE_LO_MASK = 0xffffff00U,
398};
399
400enum chip_type {
401 chip_504x,
402 chip_508x,
403 chip_5080,
404 chip_604x,
405 chip_608x,
406 chip_6042,
407 chip_7042,
408 chip_soc,
409};
410
411
412struct mv_crqb {
413 __le32 sg_addr;
414 __le32 sg_addr_hi;
415 __le16 ctrl_flags;
416 __le16 ata_cmd[11];
417};
418
419struct mv_crqb_iie {
420 __le32 addr;
421 __le32 addr_hi;
422 __le32 flags;
423 __le32 len;
424 __le32 ata_cmd[4];
425};
426
427
428struct mv_crpb {
429 __le16 id;
430 __le16 flags;
431 __le32 tmstmp;
432};
433
434
435struct mv_sg {
436 __le32 addr;
437 __le32 flags_size;
438 __le32 addr_hi;
439 __le32 reserved;
440};
441
442struct mv_port_priv {
443 struct mv_crqb *crqb;
444 dma_addr_t crqb_dma;
445 struct mv_crpb *crpb;
446 dma_addr_t crpb_dma;
447 struct mv_sg *sg_tbl[MV_MAX_Q_DEPTH];
448 dma_addr_t sg_tbl_dma[MV_MAX_Q_DEPTH];
449
450 unsigned int req_idx;
451 unsigned int resp_idx;
452
453 u32 pp_flags;
454 unsigned int delayed_eh_pmp_map;
455};
456
457struct mv_port_signal {
458 u32 amps;
459 u32 pre;
460};
461
462struct mv_host_priv {
463 u32 hp_flags;
464 u32 main_irq_mask;
465 struct mv_port_signal signal[8];
466 const struct mv_hw_ops *ops;
467 int n_ports;
468 void __iomem *base;
469 void __iomem *main_irq_cause_addr;
470 void __iomem *main_irq_mask_addr;
471 u32 irq_cause_ofs;
472 u32 irq_mask_ofs;
473 u32 unmask_all_irqs;
474
475
476
477
478
479 struct dma_pool *crqb_pool;
480 struct dma_pool *crpb_pool;
481 struct dma_pool *sg_tbl_pool;
482};
483
484struct mv_hw_ops {
485 void (*phy_errata)(struct mv_host_priv *hpriv, void __iomem *mmio,
486 unsigned int port);
487 void (*enable_leds)(struct mv_host_priv *hpriv, void __iomem *mmio);
488 void (*read_preamp)(struct mv_host_priv *hpriv, int idx,
489 void __iomem *mmio);
490 int (*reset_hc)(struct mv_host_priv *hpriv, void __iomem *mmio,
491 unsigned int n_hc);
492 void (*reset_flash)(struct mv_host_priv *hpriv, void __iomem *mmio);
493 void (*reset_bus)(struct ata_host *host, void __iomem *mmio);
494};
495
496static int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val);
497static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val);
498static int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val);
499static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val);
500static int mv_port_start(struct ata_port *ap);
501static void mv_port_stop(struct ata_port *ap);
502static int mv_qc_defer(struct ata_queued_cmd *qc);
503static void mv_qc_prep(struct ata_queued_cmd *qc);
504static void mv_qc_prep_iie(struct ata_queued_cmd *qc);
505static unsigned int mv_qc_issue(struct ata_queued_cmd *qc);
506static int mv_hardreset(struct ata_link *link, unsigned int *class,
507 unsigned long deadline);
508static void mv_eh_freeze(struct ata_port *ap);
509static void mv_eh_thaw(struct ata_port *ap);
510static void mv6_dev_config(struct ata_device *dev);
511
512static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
513 unsigned int port);
514static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio);
515static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx,
516 void __iomem *mmio);
517static int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio,
518 unsigned int n_hc);
519static void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio);
520static void mv5_reset_bus(struct ata_host *host, void __iomem *mmio);
521
522static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
523 unsigned int port);
524static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio);
525static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
526 void __iomem *mmio);
527static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio,
528 unsigned int n_hc);
529static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio);
530static void mv_soc_enable_leds(struct mv_host_priv *hpriv,
531 void __iomem *mmio);
532static void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx,
533 void __iomem *mmio);
534static int mv_soc_reset_hc(struct mv_host_priv *hpriv,
535 void __iomem *mmio, unsigned int n_hc);
536static void mv_soc_reset_flash(struct mv_host_priv *hpriv,
537 void __iomem *mmio);
538static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio);
539static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio);
540static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio,
541 unsigned int port_no);
542static int mv_stop_edma(struct ata_port *ap);
543static int mv_stop_edma_engine(void __iomem *port_mmio);
544static void mv_edma_cfg(struct ata_port *ap, int want_ncq);
545
546static void mv_pmp_select(struct ata_port *ap, int pmp);
547static int mv_pmp_hardreset(struct ata_link *link, unsigned int *class,
548 unsigned long deadline);
549static int mv_softreset(struct ata_link *link, unsigned int *class,
550 unsigned long deadline);
551static void mv_pmp_error_handler(struct ata_port *ap);
552static void mv_process_crpb_entries(struct ata_port *ap,
553 struct mv_port_priv *pp);
554
555
556
557
558
559static struct scsi_host_template mv5_sht = {
560 ATA_BASE_SHT(DRV_NAME),
561 .sg_tablesize = MV_MAX_SG_CT / 2,
562 .dma_boundary = MV_DMA_BOUNDARY,
563};
564
565static struct scsi_host_template mv6_sht = {
566 ATA_NCQ_SHT(DRV_NAME),
567 .can_queue = MV_MAX_Q_DEPTH - 1,
568 .sg_tablesize = MV_MAX_SG_CT / 2,
569 .dma_boundary = MV_DMA_BOUNDARY,
570};
571
572static struct ata_port_operations mv5_ops = {
573 .inherits = &ata_sff_port_ops,
574
575 .qc_defer = mv_qc_defer,
576 .qc_prep = mv_qc_prep,
577 .qc_issue = mv_qc_issue,
578
579 .freeze = mv_eh_freeze,
580 .thaw = mv_eh_thaw,
581 .hardreset = mv_hardreset,
582 .error_handler = ata_std_error_handler,
583 .post_internal_cmd = ATA_OP_NULL,
584
585 .scr_read = mv5_scr_read,
586 .scr_write = mv5_scr_write,
587
588 .port_start = mv_port_start,
589 .port_stop = mv_port_stop,
590};
591
592static struct ata_port_operations mv6_ops = {
593 .inherits = &mv5_ops,
594 .dev_config = mv6_dev_config,
595 .scr_read = mv_scr_read,
596 .scr_write = mv_scr_write,
597
598 .pmp_hardreset = mv_pmp_hardreset,
599 .pmp_softreset = mv_softreset,
600 .softreset = mv_softreset,
601 .error_handler = mv_pmp_error_handler,
602};
603
604static struct ata_port_operations mv_iie_ops = {
605 .inherits = &mv6_ops,
606 .dev_config = ATA_OP_NULL,
607 .qc_prep = mv_qc_prep_iie,
608};
609
610static const struct ata_port_info mv_port_info[] = {
611 {
612 .flags = MV_COMMON_FLAGS,
613 .pio_mask = 0x1f,
614 .udma_mask = ATA_UDMA6,
615 .port_ops = &mv5_ops,
616 },
617 {
618 .flags = MV_COMMON_FLAGS | MV_FLAG_DUAL_HC,
619 .pio_mask = 0x1f,
620 .udma_mask = ATA_UDMA6,
621 .port_ops = &mv5_ops,
622 },
623 {
624 .flags = MV_COMMON_FLAGS | MV_FLAG_DUAL_HC,
625 .pio_mask = 0x1f,
626 .udma_mask = ATA_UDMA6,
627 .port_ops = &mv5_ops,
628 },
629 {
630 .flags = MV_COMMON_FLAGS | MV_6XXX_FLAGS |
631 ATA_FLAG_PMP | ATA_FLAG_ACPI_SATA |
632 ATA_FLAG_NCQ,
633 .pio_mask = 0x1f,
634 .udma_mask = ATA_UDMA6,
635 .port_ops = &mv6_ops,
636 },
637 {
638 .flags = MV_COMMON_FLAGS | MV_6XXX_FLAGS |
639 ATA_FLAG_PMP | ATA_FLAG_ACPI_SATA |
640 ATA_FLAG_NCQ | MV_FLAG_DUAL_HC,
641 .pio_mask = 0x1f,
642 .udma_mask = ATA_UDMA6,
643 .port_ops = &mv6_ops,
644 },
645 {
646 .flags = MV_GENIIE_FLAGS,
647 .pio_mask = 0x1f,
648 .udma_mask = ATA_UDMA6,
649 .port_ops = &mv_iie_ops,
650 },
651 {
652 .flags = MV_GENIIE_FLAGS,
653 .pio_mask = 0x1f,
654 .udma_mask = ATA_UDMA6,
655 .port_ops = &mv_iie_ops,
656 },
657 {
658 .flags = MV_GENIIE_FLAGS,
659 .pio_mask = 0x1f,
660 .udma_mask = ATA_UDMA6,
661 .port_ops = &mv_iie_ops,
662 },
663};
664
665static const struct pci_device_id mv_pci_tbl[] = {
666 { PCI_VDEVICE(MARVELL, 0x5040), chip_504x },
667 { PCI_VDEVICE(MARVELL, 0x5041), chip_504x },
668 { PCI_VDEVICE(MARVELL, 0x5080), chip_5080 },
669 { PCI_VDEVICE(MARVELL, 0x5081), chip_508x },
670
671 { PCI_VDEVICE(TTI, 0x1720), chip_6042 },
672 { PCI_VDEVICE(TTI, 0x1740), chip_508x },
673 { PCI_VDEVICE(TTI, 0x1742), chip_508x },
674
675 { PCI_VDEVICE(MARVELL, 0x6040), chip_604x },
676 { PCI_VDEVICE(MARVELL, 0x6041), chip_604x },
677 { PCI_VDEVICE(MARVELL, 0x6042), chip_6042 },
678 { PCI_VDEVICE(MARVELL, 0x6080), chip_608x },
679 { PCI_VDEVICE(MARVELL, 0x6081), chip_608x },
680
681 { PCI_VDEVICE(ADAPTEC2, 0x0241), chip_604x },
682
683
684 { PCI_VDEVICE(ADAPTEC2, 0x0243), chip_7042 },
685
686
687 { PCI_VDEVICE(MARVELL, 0x7042), chip_7042 },
688
689
690 { PCI_VDEVICE(TTI, 0x2300), chip_7042 },
691 { PCI_VDEVICE(TTI, 0x2310), chip_7042 },
692
693 { }
694};
695
696static const struct mv_hw_ops mv5xxx_ops = {
697 .phy_errata = mv5_phy_errata,
698 .enable_leds = mv5_enable_leds,
699 .read_preamp = mv5_read_preamp,
700 .reset_hc = mv5_reset_hc,
701 .reset_flash = mv5_reset_flash,
702 .reset_bus = mv5_reset_bus,
703};
704
705static const struct mv_hw_ops mv6xxx_ops = {
706 .phy_errata = mv6_phy_errata,
707 .enable_leds = mv6_enable_leds,
708 .read_preamp = mv6_read_preamp,
709 .reset_hc = mv6_reset_hc,
710 .reset_flash = mv6_reset_flash,
711 .reset_bus = mv_reset_pci_bus,
712};
713
714static const struct mv_hw_ops mv_soc_ops = {
715 .phy_errata = mv6_phy_errata,
716 .enable_leds = mv_soc_enable_leds,
717 .read_preamp = mv_soc_read_preamp,
718 .reset_hc = mv_soc_reset_hc,
719 .reset_flash = mv_soc_reset_flash,
720 .reset_bus = mv_soc_reset_bus,
721};
722
723
724
725
726
727static inline void writelfl(unsigned long data, void __iomem *addr)
728{
729 writel(data, addr);
730 (void) readl(addr);
731}
732
733static inline unsigned int mv_hc_from_port(unsigned int port)
734{
735 return port >> MV_PORT_HC_SHIFT;
736}
737
738static inline unsigned int mv_hardport_from_port(unsigned int port)
739{
740 return port & MV_PORT_MASK;
741}
742
743
744
745
746
747
748
749
750
751
752
753
754#define MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport) \
755{ \
756 shift = mv_hc_from_port(port) * HC_SHIFT; \
757 hardport = mv_hardport_from_port(port); \
758 shift += hardport * 2; \
759}
760
761static inline void __iomem *mv_hc_base(void __iomem *base, unsigned int hc)
762{
763 return (base + MV_SATAHC0_REG_BASE + (hc * MV_SATAHC_REG_SZ));
764}
765
766static inline void __iomem *mv_hc_base_from_port(void __iomem *base,
767 unsigned int port)
768{
769 return mv_hc_base(base, mv_hc_from_port(port));
770}
771
772static inline void __iomem *mv_port_base(void __iomem *base, unsigned int port)
773{
774 return mv_hc_base_from_port(base, port) +
775 MV_SATAHC_ARBTR_REG_SZ +
776 (mv_hardport_from_port(port) * MV_PORT_REG_SZ);
777}
778
779static void __iomem *mv5_phy_base(void __iomem *mmio, unsigned int port)
780{
781 void __iomem *hc_mmio = mv_hc_base_from_port(mmio, port);
782 unsigned long ofs = (mv_hardport_from_port(port) + 1) * 0x100UL;
783
784 return hc_mmio + ofs;
785}
786
787static inline void __iomem *mv_host_base(struct ata_host *host)
788{
789 struct mv_host_priv *hpriv = host->private_data;
790 return hpriv->base;
791}
792
793static inline void __iomem *mv_ap_base(struct ata_port *ap)
794{
795 return mv_port_base(mv_host_base(ap->host), ap->port_no);
796}
797
798static inline int mv_get_hc_count(unsigned long port_flags)
799{
800 return ((port_flags & MV_FLAG_DUAL_HC) ? 2 : 1);
801}
802
803static void mv_set_edma_ptrs(void __iomem *port_mmio,
804 struct mv_host_priv *hpriv,
805 struct mv_port_priv *pp)
806{
807 u32 index;
808
809
810
811
812 pp->req_idx &= MV_MAX_Q_DEPTH_MASK;
813 index = pp->req_idx << EDMA_REQ_Q_PTR_SHIFT;
814
815 WARN_ON(pp->crqb_dma & 0x3ff);
816 writel((pp->crqb_dma >> 16) >> 16, port_mmio + EDMA_REQ_Q_BASE_HI_OFS);
817 writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | index,
818 port_mmio + EDMA_REQ_Q_IN_PTR_OFS);
819 writelfl(index, port_mmio + EDMA_REQ_Q_OUT_PTR_OFS);
820
821
822
823
824 pp->resp_idx &= MV_MAX_Q_DEPTH_MASK;
825 index = pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT;
826
827 WARN_ON(pp->crpb_dma & 0xff);
828 writel((pp->crpb_dma >> 16) >> 16, port_mmio + EDMA_RSP_Q_BASE_HI_OFS);
829 writelfl(index, port_mmio + EDMA_RSP_Q_IN_PTR_OFS);
830 writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | index,
831 port_mmio + EDMA_RSP_Q_OUT_PTR_OFS);
832}
833
834static void mv_set_main_irq_mask(struct ata_host *host,
835 u32 disable_bits, u32 enable_bits)
836{
837 struct mv_host_priv *hpriv = host->private_data;
838 u32 old_mask, new_mask;
839
840 old_mask = hpriv->main_irq_mask;
841 new_mask = (old_mask & ~disable_bits) | enable_bits;
842 if (new_mask != old_mask) {
843 hpriv->main_irq_mask = new_mask;
844 writelfl(new_mask, hpriv->main_irq_mask_addr);
845 }
846}
847
848static void mv_enable_port_irqs(struct ata_port *ap,
849 unsigned int port_bits)
850{
851 unsigned int shift, hardport, port = ap->port_no;
852 u32 disable_bits, enable_bits;
853
854 MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport);
855
856 disable_bits = (DONE_IRQ | ERR_IRQ) << shift;
857 enable_bits = port_bits << shift;
858 mv_set_main_irq_mask(ap->host, disable_bits, enable_bits);
859}
860
861
862
863
864
865
866
867
868
869
870
871
872static void mv_start_dma(struct ata_port *ap, void __iomem *port_mmio,
873 struct mv_port_priv *pp, u8 protocol)
874{
875 int want_ncq = (protocol == ATA_PROT_NCQ);
876
877 if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) {
878 int using_ncq = ((pp->pp_flags & MV_PP_FLAG_NCQ_EN) != 0);
879 if (want_ncq != using_ncq)
880 mv_stop_edma(ap);
881 }
882 if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) {
883 struct mv_host_priv *hpriv = ap->host->private_data;
884 int hardport = mv_hardport_from_port(ap->port_no);
885 void __iomem *hc_mmio = mv_hc_base_from_port(
886 mv_host_base(ap->host), hardport);
887 u32 hc_irq_cause, ipending;
888
889
890 writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
891
892
893 hc_irq_cause = readl(hc_mmio + HC_IRQ_CAUSE_OFS);
894 ipending = (DEV_IRQ | DMA_IRQ) << hardport;
895 if (hc_irq_cause & ipending) {
896 writelfl(hc_irq_cause & ~ipending,
897 hc_mmio + HC_IRQ_CAUSE_OFS);
898 }
899
900 mv_edma_cfg(ap, want_ncq);
901
902
903 if (IS_GEN_IIE(hpriv))
904 writelfl(0, port_mmio + SATA_FIS_IRQ_CAUSE_OFS);
905
906 mv_set_edma_ptrs(port_mmio, hpriv, pp);
907 mv_enable_port_irqs(ap, DONE_IRQ|ERR_IRQ);
908
909 writelfl(EDMA_EN, port_mmio + EDMA_CMD_OFS);
910 pp->pp_flags |= MV_PP_FLAG_EDMA_EN;
911 }
912}
913
914static void mv_wait_for_edma_empty_idle(struct ata_port *ap)
915{
916 void __iomem *port_mmio = mv_ap_base(ap);
917 const u32 empty_idle = (EDMA_STATUS_CACHE_EMPTY | EDMA_STATUS_IDLE);
918 const int per_loop = 5, timeout = (15 * 1000 / per_loop);
919 int i;
920
921
922
923
924
925
926
927
928 for (i = 0; i < timeout; ++i) {
929 u32 edma_stat = readl(port_mmio + EDMA_STATUS_OFS);
930 if ((edma_stat & empty_idle) == empty_idle)
931 break;
932 udelay(per_loop);
933 }
934
935}
936
937
938
939
940
941
942
943
944static int mv_stop_edma_engine(void __iomem *port_mmio)
945{
946 int i;
947
948
949 writelfl(EDMA_DS, port_mmio + EDMA_CMD_OFS);
950
951
952 for (i = 10000; i > 0; i--) {
953 u32 reg = readl(port_mmio + EDMA_CMD_OFS);
954 if (!(reg & EDMA_EN))
955 return 0;
956 udelay(10);
957 }
958 return -EIO;
959}
960
961static int mv_stop_edma(struct ata_port *ap)
962{
963 void __iomem *port_mmio = mv_ap_base(ap);
964 struct mv_port_priv *pp = ap->private_data;
965
966 if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN))
967 return 0;
968 pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN;
969 mv_wait_for_edma_empty_idle(ap);
970 if (mv_stop_edma_engine(port_mmio)) {
971 ata_port_printk(ap, KERN_ERR, "Unable to stop eDMA\n");
972 return -EIO;
973 }
974 return 0;
975}
976
977#ifdef ATA_DEBUG
978static void mv_dump_mem(void __iomem *start, unsigned bytes)
979{
980 int b, w;
981 for (b = 0; b < bytes; ) {
982 DPRINTK("%p: ", start + b);
983 for (w = 0; b < bytes && w < 4; w++) {
984 printk("%08x ", readl(start + b));
985 b += sizeof(u32);
986 }
987 printk("\n");
988 }
989}
990#endif
991
992static void mv_dump_pci_cfg(struct pci_dev *pdev, unsigned bytes)
993{
994#ifdef ATA_DEBUG
995 int b, w;
996 u32 dw;
997 for (b = 0; b < bytes; ) {
998 DPRINTK("%02x: ", b);
999 for (w = 0; b < bytes && w < 4; w++) {
1000 (void) pci_read_config_dword(pdev, b, &dw);
1001 printk("%08x ", dw);
1002 b += sizeof(u32);
1003 }
1004 printk("\n");
1005 }
1006#endif
1007}
1008static void mv_dump_all_regs(void __iomem *mmio_base, int port,
1009 struct pci_dev *pdev)
1010{
1011#ifdef ATA_DEBUG
1012 void __iomem *hc_base = mv_hc_base(mmio_base,
1013 port >> MV_PORT_HC_SHIFT);
1014 void __iomem *port_base;
1015 int start_port, num_ports, p, start_hc, num_hcs, hc;
1016
1017 if (0 > port) {
1018 start_hc = start_port = 0;
1019 num_ports = 8;
1020 num_hcs = 2;
1021 } else {
1022 start_hc = port >> MV_PORT_HC_SHIFT;
1023 start_port = port;
1024 num_ports = num_hcs = 1;
1025 }
1026 DPRINTK("All registers for port(s) %u-%u:\n", start_port,
1027 num_ports > 1 ? num_ports - 1 : start_port);
1028
1029 if (NULL != pdev) {
1030 DPRINTK("PCI config space regs:\n");
1031 mv_dump_pci_cfg(pdev, 0x68);
1032 }
1033 DPRINTK("PCI regs:\n");
1034 mv_dump_mem(mmio_base+0xc00, 0x3c);
1035 mv_dump_mem(mmio_base+0xd00, 0x34);
1036 mv_dump_mem(mmio_base+0xf00, 0x4);
1037 mv_dump_mem(mmio_base+0x1d00, 0x6c);
1038 for (hc = start_hc; hc < start_hc + num_hcs; hc++) {
1039 hc_base = mv_hc_base(mmio_base, hc);
1040 DPRINTK("HC regs (HC %i):\n", hc);
1041 mv_dump_mem(hc_base, 0x1c);
1042 }
1043 for (p = start_port; p < start_port + num_ports; p++) {
1044 port_base = mv_port_base(mmio_base, p);
1045 DPRINTK("EDMA regs (port %i):\n", p);
1046 mv_dump_mem(port_base, 0x54);
1047 DPRINTK("SATA regs (port %i):\n", p);
1048 mv_dump_mem(port_base+0x300, 0x60);
1049 }
1050#endif
1051}
1052
1053static unsigned int mv_scr_offset(unsigned int sc_reg_in)
1054{
1055 unsigned int ofs;
1056
1057 switch (sc_reg_in) {
1058 case SCR_STATUS:
1059 case SCR_CONTROL:
1060 case SCR_ERROR:
1061 ofs = SATA_STATUS_OFS + (sc_reg_in * sizeof(u32));
1062 break;
1063 case SCR_ACTIVE:
1064 ofs = SATA_ACTIVE_OFS;
1065 break;
1066 default:
1067 ofs = 0xffffffffU;
1068 break;
1069 }
1070 return ofs;
1071}
1072
1073static int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val)
1074{
1075 unsigned int ofs = mv_scr_offset(sc_reg_in);
1076
1077 if (ofs != 0xffffffffU) {
1078 *val = readl(mv_ap_base(link->ap) + ofs);
1079 return 0;
1080 } else
1081 return -EINVAL;
1082}
1083
1084static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
1085{
1086 unsigned int ofs = mv_scr_offset(sc_reg_in);
1087
1088 if (ofs != 0xffffffffU) {
1089 writelfl(val, mv_ap_base(link->ap) + ofs);
1090 return 0;
1091 } else
1092 return -EINVAL;
1093}
1094
1095static void mv6_dev_config(struct ata_device *adev)
1096{
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106 if (adev->flags & ATA_DFLAG_NCQ) {
1107 if (sata_pmp_attached(adev->link->ap)) {
1108 adev->flags &= ~ATA_DFLAG_NCQ;
1109 ata_dev_printk(adev, KERN_INFO,
1110 "NCQ disabled for command-based switching\n");
1111 } else if (adev->max_sectors > GEN_II_NCQ_MAX_SECTORS) {
1112 adev->max_sectors = GEN_II_NCQ_MAX_SECTORS;
1113 ata_dev_printk(adev, KERN_INFO,
1114 "max_sectors limited to %u for NCQ\n",
1115 adev->max_sectors);
1116 }
1117 }
1118}
1119
1120static int mv_qc_defer(struct ata_queued_cmd *qc)
1121{
1122 struct ata_link *link = qc->dev->link;
1123 struct ata_port *ap = link->ap;
1124 struct mv_port_priv *pp = ap->private_data;
1125
1126
1127
1128
1129
1130 if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH)
1131 return ATA_DEFER_PORT;
1132
1133
1134
1135 if (ap->nr_active_links == 0)
1136 return 0;
1137
1138
1139
1140
1141
1142
1143
1144 if ((pp->pp_flags & MV_PP_FLAG_EDMA_EN) &&
1145 (pp->pp_flags & MV_PP_FLAG_NCQ_EN) && ata_is_ncq(qc->tf.protocol))
1146 return 0;
1147
1148 return ATA_DEFER_PORT;
1149}
1150
1151static void mv_config_fbs(void __iomem *port_mmio, int want_ncq, int want_fbs)
1152{
1153 u32 new_fiscfg, old_fiscfg;
1154 u32 new_ltmode, old_ltmode;
1155 u32 new_haltcond, old_haltcond;
1156
1157 old_fiscfg = readl(port_mmio + FISCFG_OFS);
1158 old_ltmode = readl(port_mmio + LTMODE_OFS);
1159 old_haltcond = readl(port_mmio + EDMA_HALTCOND_OFS);
1160
1161 new_fiscfg = old_fiscfg & ~(FISCFG_SINGLE_SYNC | FISCFG_WAIT_DEV_ERR);
1162 new_ltmode = old_ltmode & ~LTMODE_BIT8;
1163 new_haltcond = old_haltcond | EDMA_ERR_DEV;
1164
1165 if (want_fbs) {
1166 new_fiscfg = old_fiscfg | FISCFG_SINGLE_SYNC;
1167 new_ltmode = old_ltmode | LTMODE_BIT8;
1168 if (want_ncq)
1169 new_haltcond &= ~EDMA_ERR_DEV;
1170 else
1171 new_fiscfg |= FISCFG_WAIT_DEV_ERR;
1172 }
1173
1174 if (new_fiscfg != old_fiscfg)
1175 writelfl(new_fiscfg, port_mmio + FISCFG_OFS);
1176 if (new_ltmode != old_ltmode)
1177 writelfl(new_ltmode, port_mmio + LTMODE_OFS);
1178 if (new_haltcond != old_haltcond)
1179 writelfl(new_haltcond, port_mmio + EDMA_HALTCOND_OFS);
1180}
1181
1182static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq)
1183{
1184 struct mv_host_priv *hpriv = ap->host->private_data;
1185 u32 old, new;
1186
1187
1188 old = readl(hpriv->base + MV_GPIO_PORT_CTL_OFS);
1189 if (want_ncq)
1190 new = old | (1 << 22);
1191 else
1192 new = old & ~(1 << 22);
1193 if (new != old)
1194 writel(new, hpriv->base + MV_GPIO_PORT_CTL_OFS);
1195}
1196
1197static void mv_edma_cfg(struct ata_port *ap, int want_ncq)
1198{
1199 u32 cfg;
1200 struct mv_port_priv *pp = ap->private_data;
1201 struct mv_host_priv *hpriv = ap->host->private_data;
1202 void __iomem *port_mmio = mv_ap_base(ap);
1203
1204
1205 cfg = EDMA_CFG_Q_DEPTH;
1206 pp->pp_flags &= ~MV_PP_FLAG_FBS_EN;
1207
1208 if (IS_GEN_I(hpriv))
1209 cfg |= (1 << 8);
1210
1211 else if (IS_GEN_II(hpriv)) {
1212 cfg |= EDMA_CFG_RD_BRST_EXT | EDMA_CFG_WR_BUFF_LEN;
1213 mv_60x1_errata_sata25(ap, want_ncq);
1214
1215 } else if (IS_GEN_IIE(hpriv)) {
1216 int want_fbs = sata_pmp_attached(ap);
1217
1218
1219
1220
1221
1222
1223
1224
1225 want_fbs &= want_ncq;
1226
1227 mv_config_fbs(port_mmio, want_ncq, want_fbs);
1228
1229 if (want_fbs) {
1230 pp->pp_flags |= MV_PP_FLAG_FBS_EN;
1231 cfg |= EDMA_CFG_EDMA_FBS;
1232 }
1233
1234 cfg |= (1 << 23);
1235 cfg |= (1 << 22);
1236 if (!IS_SOC(hpriv))
1237 cfg |= (1 << 18);
1238 if (hpriv->hp_flags & MV_HP_CUT_THROUGH)
1239 cfg |= (1 << 17);
1240 }
1241
1242 if (want_ncq) {
1243 cfg |= EDMA_CFG_NCQ;
1244 pp->pp_flags |= MV_PP_FLAG_NCQ_EN;
1245 } else
1246 pp->pp_flags &= ~MV_PP_FLAG_NCQ_EN;
1247
1248 writelfl(cfg, port_mmio + EDMA_CFG_OFS);
1249}
1250
1251static void mv_port_free_dma_mem(struct ata_port *ap)
1252{
1253 struct mv_host_priv *hpriv = ap->host->private_data;
1254 struct mv_port_priv *pp = ap->private_data;
1255 int tag;
1256
1257 if (pp->crqb) {
1258 dma_pool_free(hpriv->crqb_pool, pp->crqb, pp->crqb_dma);
1259 pp->crqb = NULL;
1260 }
1261 if (pp->crpb) {
1262 dma_pool_free(hpriv->crpb_pool, pp->crpb, pp->crpb_dma);
1263 pp->crpb = NULL;
1264 }
1265
1266
1267
1268
1269 for (tag = 0; tag < MV_MAX_Q_DEPTH; ++tag) {
1270 if (pp->sg_tbl[tag]) {
1271 if (tag == 0 || !IS_GEN_I(hpriv))
1272 dma_pool_free(hpriv->sg_tbl_pool,
1273 pp->sg_tbl[tag],
1274 pp->sg_tbl_dma[tag]);
1275 pp->sg_tbl[tag] = NULL;
1276 }
1277 }
1278}
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290static int mv_port_start(struct ata_port *ap)
1291{
1292 struct device *dev = ap->host->dev;
1293 struct mv_host_priv *hpriv = ap->host->private_data;
1294 struct mv_port_priv *pp;
1295 int tag;
1296
1297 pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
1298 if (!pp)
1299 return -ENOMEM;
1300 ap->private_data = pp;
1301
1302 pp->crqb = dma_pool_alloc(hpriv->crqb_pool, GFP_KERNEL, &pp->crqb_dma);
1303 if (!pp->crqb)
1304 return -ENOMEM;
1305 memset(pp->crqb, 0, MV_CRQB_Q_SZ);
1306
1307 pp->crpb = dma_pool_alloc(hpriv->crpb_pool, GFP_KERNEL, &pp->crpb_dma);
1308 if (!pp->crpb)
1309 goto out_port_free_dma_mem;
1310 memset(pp->crpb, 0, MV_CRPB_Q_SZ);
1311
1312
1313 if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0)
1314 ap->flags |= ATA_FLAG_AN;
1315
1316
1317
1318
1319 for (tag = 0; tag < MV_MAX_Q_DEPTH; ++tag) {
1320 if (tag == 0 || !IS_GEN_I(hpriv)) {
1321 pp->sg_tbl[tag] = dma_pool_alloc(hpriv->sg_tbl_pool,
1322 GFP_KERNEL, &pp->sg_tbl_dma[tag]);
1323 if (!pp->sg_tbl[tag])
1324 goto out_port_free_dma_mem;
1325 } else {
1326 pp->sg_tbl[tag] = pp->sg_tbl[0];
1327 pp->sg_tbl_dma[tag] = pp->sg_tbl_dma[0];
1328 }
1329 }
1330 return 0;
1331
1332out_port_free_dma_mem:
1333 mv_port_free_dma_mem(ap);
1334 return -ENOMEM;
1335}
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346static void mv_port_stop(struct ata_port *ap)
1347{
1348 mv_stop_edma(ap);
1349 mv_enable_port_irqs(ap, 0);
1350 mv_port_free_dma_mem(ap);
1351}
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362static void mv_fill_sg(struct ata_queued_cmd *qc)
1363{
1364 struct mv_port_priv *pp = qc->ap->private_data;
1365 struct scatterlist *sg;
1366 struct mv_sg *mv_sg, *last_sg = NULL;
1367 unsigned int si;
1368
1369 mv_sg = pp->sg_tbl[qc->tag];
1370 for_each_sg(qc->sg, sg, qc->n_elem, si) {
1371 dma_addr_t addr = sg_dma_address(sg);
1372 u32 sg_len = sg_dma_len(sg);
1373
1374 while (sg_len) {
1375 u32 offset = addr & 0xffff;
1376 u32 len = sg_len;
1377
1378 if ((offset + sg_len > 0x10000))
1379 len = 0x10000 - offset;
1380
1381 mv_sg->addr = cpu_to_le32(addr & 0xffffffff);
1382 mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16);
1383 mv_sg->flags_size = cpu_to_le32(len & 0xffff);
1384
1385 sg_len -= len;
1386 addr += len;
1387
1388 last_sg = mv_sg;
1389 mv_sg++;
1390 }
1391 }
1392
1393 if (likely(last_sg))
1394 last_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL);
1395}
1396
1397static void mv_crqb_pack_cmd(__le16 *cmdw, u8 data, u8 addr, unsigned last)
1398{
1399 u16 tmp = data | (addr << CRQB_CMD_ADDR_SHIFT) | CRQB_CMD_CS |
1400 (last ? CRQB_CMD_LAST : 0);
1401 *cmdw = cpu_to_le16(tmp);
1402}
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416static void mv_qc_prep(struct ata_queued_cmd *qc)
1417{
1418 struct ata_port *ap = qc->ap;
1419 struct mv_port_priv *pp = ap->private_data;
1420 __le16 *cw;
1421 struct ata_taskfile *tf;
1422 u16 flags = 0;
1423 unsigned in_index;
1424
1425 if ((qc->tf.protocol != ATA_PROT_DMA) &&
1426 (qc->tf.protocol != ATA_PROT_NCQ))
1427 return;
1428
1429
1430
1431 if (!(qc->tf.flags & ATA_TFLAG_WRITE))
1432 flags |= CRQB_FLAG_READ;
1433 WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
1434 flags |= qc->tag << CRQB_TAG_SHIFT;
1435 flags |= (qc->dev->link->pmp & 0xf) << CRQB_PMP_SHIFT;
1436
1437
1438 in_index = pp->req_idx;
1439
1440 pp->crqb[in_index].sg_addr =
1441 cpu_to_le32(pp->sg_tbl_dma[qc->tag] & 0xffffffff);
1442 pp->crqb[in_index].sg_addr_hi =
1443 cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16);
1444 pp->crqb[in_index].ctrl_flags = cpu_to_le16(flags);
1445
1446 cw = &pp->crqb[in_index].ata_cmd[0];
1447 tf = &qc->tf;
1448
1449
1450
1451
1452
1453
1454
1455 switch (tf->command) {
1456 case ATA_CMD_READ:
1457 case ATA_CMD_READ_EXT:
1458 case ATA_CMD_WRITE:
1459 case ATA_CMD_WRITE_EXT:
1460 case ATA_CMD_WRITE_FUA_EXT:
1461 mv_crqb_pack_cmd(cw++, tf->hob_nsect, ATA_REG_NSECT, 0);
1462 break;
1463 case ATA_CMD_FPDMA_READ:
1464 case ATA_CMD_FPDMA_WRITE:
1465 mv_crqb_pack_cmd(cw++, tf->hob_feature, ATA_REG_FEATURE, 0);
1466 mv_crqb_pack_cmd(cw++, tf->feature, ATA_REG_FEATURE, 0);
1467 break;
1468 default:
1469
1470
1471
1472
1473
1474
1475
1476
1477 BUG_ON(tf->command);
1478 break;
1479 }
1480 mv_crqb_pack_cmd(cw++, tf->nsect, ATA_REG_NSECT, 0);
1481 mv_crqb_pack_cmd(cw++, tf->hob_lbal, ATA_REG_LBAL, 0);
1482 mv_crqb_pack_cmd(cw++, tf->lbal, ATA_REG_LBAL, 0);
1483 mv_crqb_pack_cmd(cw++, tf->hob_lbam, ATA_REG_LBAM, 0);
1484 mv_crqb_pack_cmd(cw++, tf->lbam, ATA_REG_LBAM, 0);
1485 mv_crqb_pack_cmd(cw++, tf->hob_lbah, ATA_REG_LBAH, 0);
1486 mv_crqb_pack_cmd(cw++, tf->lbah, ATA_REG_LBAH, 0);
1487 mv_crqb_pack_cmd(cw++, tf->device, ATA_REG_DEVICE, 0);
1488 mv_crqb_pack_cmd(cw++, tf->command, ATA_REG_CMD, 1);
1489
1490 if (!(qc->flags & ATA_QCFLAG_DMAMAP))
1491 return;
1492 mv_fill_sg(qc);
1493}
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
1508{
1509 struct ata_port *ap = qc->ap;
1510 struct mv_port_priv *pp = ap->private_data;
1511 struct mv_crqb_iie *crqb;
1512 struct ata_taskfile *tf;
1513 unsigned in_index;
1514 u32 flags = 0;
1515
1516 if ((qc->tf.protocol != ATA_PROT_DMA) &&
1517 (qc->tf.protocol != ATA_PROT_NCQ))
1518 return;
1519
1520
1521 if (!(qc->tf.flags & ATA_TFLAG_WRITE))
1522 flags |= CRQB_FLAG_READ;
1523
1524 WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
1525 flags |= qc->tag << CRQB_TAG_SHIFT;
1526 flags |= qc->tag << CRQB_HOSTQ_SHIFT;
1527 flags |= (qc->dev->link->pmp & 0xf) << CRQB_PMP_SHIFT;
1528
1529
1530 in_index = pp->req_idx;
1531
1532 crqb = (struct mv_crqb_iie *) &pp->crqb[in_index];
1533 crqb->addr = cpu_to_le32(pp->sg_tbl_dma[qc->tag] & 0xffffffff);
1534 crqb->addr_hi = cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16);
1535 crqb->flags = cpu_to_le32(flags);
1536
1537 tf = &qc->tf;
1538 crqb->ata_cmd[0] = cpu_to_le32(
1539 (tf->command << 16) |
1540 (tf->feature << 24)
1541 );
1542 crqb->ata_cmd[1] = cpu_to_le32(
1543 (tf->lbal << 0) |
1544 (tf->lbam << 8) |
1545 (tf->lbah << 16) |
1546 (tf->device << 24)
1547 );
1548 crqb->ata_cmd[2] = cpu_to_le32(
1549 (tf->hob_lbal << 0) |
1550 (tf->hob_lbam << 8) |
1551 (tf->hob_lbah << 16) |
1552 (tf->hob_feature << 24)
1553 );
1554 crqb->ata_cmd[3] = cpu_to_le32(
1555 (tf->nsect << 0) |
1556 (tf->hob_nsect << 8)
1557 );
1558
1559 if (!(qc->flags & ATA_QCFLAG_DMAMAP))
1560 return;
1561 mv_fill_sg(qc);
1562}
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576static unsigned int mv_qc_issue(struct ata_queued_cmd *qc)
1577{
1578 struct ata_port *ap = qc->ap;
1579 void __iomem *port_mmio = mv_ap_base(ap);
1580 struct mv_port_priv *pp = ap->private_data;
1581 u32 in_index;
1582
1583 if ((qc->tf.protocol != ATA_PROT_DMA) &&
1584 (qc->tf.protocol != ATA_PROT_NCQ)) {
1585 static int limit_warnings = 10;
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597 if (limit_warnings > 0 && (qc->nbytes / qc->sect_size) > 1) {
1598 --limit_warnings;
1599 ata_link_printk(qc->dev->link, KERN_WARNING, DRV_NAME
1600 ": attempting PIO w/multiple DRQ: "
1601 "this may fail due to h/w errata\n");
1602 }
1603
1604
1605
1606
1607
1608 mv_stop_edma(ap);
1609 mv_enable_port_irqs(ap, ERR_IRQ);
1610 mv_pmp_select(ap, qc->dev->link->pmp);
1611 return ata_sff_qc_issue(qc);
1612 }
1613
1614 mv_start_dma(ap, port_mmio, pp, qc->tf.protocol);
1615
1616 pp->req_idx = (pp->req_idx + 1) & MV_MAX_Q_DEPTH_MASK;
1617 in_index = pp->req_idx << EDMA_REQ_Q_PTR_SHIFT;
1618
1619
1620 writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | in_index,
1621 port_mmio + EDMA_REQ_Q_IN_PTR_OFS);
1622
1623 return 0;
1624}
1625
1626static struct ata_queued_cmd *mv_get_active_qc(struct ata_port *ap)
1627{
1628 struct mv_port_priv *pp = ap->private_data;
1629 struct ata_queued_cmd *qc;
1630
1631 if (pp->pp_flags & MV_PP_FLAG_NCQ_EN)
1632 return NULL;
1633 qc = ata_qc_from_tag(ap, ap->link.active_tag);
1634 if (qc && (qc->tf.flags & ATA_TFLAG_POLLING))
1635 qc = NULL;
1636 return qc;
1637}
1638
1639static void mv_pmp_error_handler(struct ata_port *ap)
1640{
1641 unsigned int pmp, pmp_map;
1642 struct mv_port_priv *pp = ap->private_data;
1643
1644 if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) {
1645
1646
1647
1648
1649
1650
1651 pmp_map = pp->delayed_eh_pmp_map;
1652 pp->pp_flags &= ~MV_PP_FLAG_DELAYED_EH;
1653 for (pmp = 0; pmp_map != 0; pmp++) {
1654 unsigned int this_pmp = (1 << pmp);
1655 if (pmp_map & this_pmp) {
1656 struct ata_link *link = &ap->pmp_link[pmp];
1657 pmp_map &= ~this_pmp;
1658 ata_eh_analyze_ncq_error(link);
1659 }
1660 }
1661 ata_port_freeze(ap);
1662 }
1663 sata_pmp_error_handler(ap);
1664}
1665
1666static unsigned int mv_get_err_pmp_map(struct ata_port *ap)
1667{
1668 void __iomem *port_mmio = mv_ap_base(ap);
1669
1670 return readl(port_mmio + SATA_TESTCTL_OFS) >> 16;
1671}
1672
1673static void mv_pmp_eh_prep(struct ata_port *ap, unsigned int pmp_map)
1674{
1675 struct ata_eh_info *ehi;
1676 unsigned int pmp;
1677
1678
1679
1680
1681 ehi = &ap->link.eh_info;
1682 for (pmp = 0; pmp_map != 0; pmp++) {
1683 unsigned int this_pmp = (1 << pmp);
1684 if (pmp_map & this_pmp) {
1685 struct ata_link *link = &ap->pmp_link[pmp];
1686
1687 pmp_map &= ~this_pmp;
1688 ehi = &link->eh_info;
1689 ata_ehi_clear_desc(ehi);
1690 ata_ehi_push_desc(ehi, "dev err");
1691 ehi->err_mask |= AC_ERR_DEV;
1692 ehi->action |= ATA_EH_RESET;
1693 ata_link_abort(link);
1694 }
1695 }
1696}
1697
1698static int mv_req_q_empty(struct ata_port *ap)
1699{
1700 void __iomem *port_mmio = mv_ap_base(ap);
1701 u32 in_ptr, out_ptr;
1702
1703 in_ptr = (readl(port_mmio + EDMA_REQ_Q_IN_PTR_OFS)
1704 >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK;
1705 out_ptr = (readl(port_mmio + EDMA_REQ_Q_OUT_PTR_OFS)
1706 >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK;
1707 return (in_ptr == out_ptr);
1708}
1709
1710static int mv_handle_fbs_ncq_dev_err(struct ata_port *ap)
1711{
1712 struct mv_port_priv *pp = ap->private_data;
1713 int failed_links;
1714 unsigned int old_map, new_map;
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724 if (!(pp->pp_flags & MV_PP_FLAG_DELAYED_EH)) {
1725 pp->pp_flags |= MV_PP_FLAG_DELAYED_EH;
1726 pp->delayed_eh_pmp_map = 0;
1727 }
1728 old_map = pp->delayed_eh_pmp_map;
1729 new_map = old_map | mv_get_err_pmp_map(ap);
1730
1731 if (old_map != new_map) {
1732 pp->delayed_eh_pmp_map = new_map;
1733 mv_pmp_eh_prep(ap, new_map & ~old_map);
1734 }
1735 failed_links = hweight16(new_map);
1736
1737 ata_port_printk(ap, KERN_INFO, "%s: pmp_map=%04x qc_map=%04x "
1738 "failed_links=%d nr_active_links=%d\n",
1739 __func__, pp->delayed_eh_pmp_map,
1740 ap->qc_active, failed_links,
1741 ap->nr_active_links);
1742
1743 if (ap->nr_active_links <= failed_links && mv_req_q_empty(ap)) {
1744 mv_process_crpb_entries(ap, pp);
1745 mv_stop_edma(ap);
1746 mv_eh_freeze(ap);
1747 ata_port_printk(ap, KERN_INFO, "%s: done\n", __func__);
1748 return 1;
1749 }
1750 ata_port_printk(ap, KERN_INFO, "%s: waiting\n", __func__);
1751 return 1;
1752}
1753
1754static int mv_handle_fbs_non_ncq_dev_err(struct ata_port *ap)
1755{
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767 return 0;
1768}
1769
1770static int mv_handle_dev_err(struct ata_port *ap, u32 edma_err_cause)
1771{
1772 struct mv_port_priv *pp = ap->private_data;
1773
1774 if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN))
1775 return 0;
1776 if (!(pp->pp_flags & MV_PP_FLAG_FBS_EN))
1777 return 0;
1778
1779 if (!(edma_err_cause & EDMA_ERR_DEV))
1780 return 0;
1781 edma_err_cause &= ~EDMA_ERR_IRQ_TRANSIENT;
1782 if (edma_err_cause & ~(EDMA_ERR_DEV | EDMA_ERR_SELF_DIS))
1783 return 0;
1784
1785 if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) {
1786
1787
1788
1789
1790
1791 if (edma_err_cause & EDMA_ERR_SELF_DIS) {
1792 ata_port_printk(ap, KERN_WARNING,
1793 "%s: err_cause=0x%x pp_flags=0x%x\n",
1794 __func__, edma_err_cause, pp->pp_flags);
1795 return 0;
1796 }
1797 return mv_handle_fbs_ncq_dev_err(ap);
1798 } else {
1799
1800
1801
1802
1803
1804 if (!(edma_err_cause & EDMA_ERR_SELF_DIS)) {
1805 ata_port_printk(ap, KERN_WARNING,
1806 "%s: err_cause=0x%x pp_flags=0x%x\n",
1807 __func__, edma_err_cause, pp->pp_flags);
1808 return 0;
1809 }
1810 return mv_handle_fbs_non_ncq_dev_err(ap);
1811 }
1812 return 0;
1813}
1814
1815static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled)
1816{
1817 struct ata_eh_info *ehi = &ap->link.eh_info;
1818 char *when = "idle";
1819
1820 ata_ehi_clear_desc(ehi);
1821 if (!ap || (ap->flags & ATA_FLAG_DISABLED)) {
1822 when = "disabled";
1823 } else if (edma_was_enabled) {
1824 when = "EDMA enabled";
1825 } else {
1826 struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag);
1827 if (qc && (qc->tf.flags & ATA_TFLAG_POLLING))
1828 when = "polling";
1829 }
1830 ata_ehi_push_desc(ehi, "unexpected device interrupt while %s", when);
1831 ehi->err_mask |= AC_ERR_OTHER;
1832 ehi->action |= ATA_EH_RESET;
1833 ata_port_freeze(ap);
1834}
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848static void mv_err_intr(struct ata_port *ap)
1849{
1850 void __iomem *port_mmio = mv_ap_base(ap);
1851 u32 edma_err_cause, eh_freeze_mask, serr = 0;
1852 u32 fis_cause = 0;
1853 struct mv_port_priv *pp = ap->private_data;
1854 struct mv_host_priv *hpriv = ap->host->private_data;
1855 unsigned int action = 0, err_mask = 0;
1856 struct ata_eh_info *ehi = &ap->link.eh_info;
1857 struct ata_queued_cmd *qc;
1858 int abort = 0;
1859
1860
1861
1862
1863
1864
1865 sata_scr_read(&ap->link, SCR_ERROR, &serr);
1866 sata_scr_write_flush(&ap->link, SCR_ERROR, serr);
1867
1868 edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
1869 if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) {
1870 fis_cause = readl(port_mmio + SATA_FIS_IRQ_CAUSE_OFS);
1871 writelfl(~fis_cause, port_mmio + SATA_FIS_IRQ_CAUSE_OFS);
1872 }
1873 writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
1874
1875 if (edma_err_cause & EDMA_ERR_DEV) {
1876
1877
1878
1879
1880 if (mv_handle_dev_err(ap, edma_err_cause))
1881 return;
1882 }
1883
1884 qc = mv_get_active_qc(ap);
1885 ata_ehi_clear_desc(ehi);
1886 ata_ehi_push_desc(ehi, "edma_err_cause=%08x pp_flags=%08x",
1887 edma_err_cause, pp->pp_flags);
1888
1889 if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) {
1890 ata_ehi_push_desc(ehi, "fis_cause=%08x", fis_cause);
1891 if (fis_cause & SATA_FIS_IRQ_AN) {
1892 u32 ec = edma_err_cause &
1893 ~(EDMA_ERR_TRANS_IRQ_7 | EDMA_ERR_IRQ_TRANSIENT);
1894 sata_async_notification(ap);
1895 if (!ec)
1896 return;
1897 ata_ehi_push_desc(ehi, "SDB notify");
1898 }
1899 }
1900
1901
1902
1903 if (edma_err_cause & EDMA_ERR_DEV) {
1904 err_mask |= AC_ERR_DEV;
1905 action |= ATA_EH_RESET;
1906 ata_ehi_push_desc(ehi, "dev error");
1907 }
1908 if (edma_err_cause & (EDMA_ERR_D_PAR | EDMA_ERR_PRD_PAR |
1909 EDMA_ERR_CRQB_PAR | EDMA_ERR_CRPB_PAR |
1910 EDMA_ERR_INTRL_PAR)) {
1911 err_mask |= AC_ERR_ATA_BUS;
1912 action |= ATA_EH_RESET;
1913 ata_ehi_push_desc(ehi, "parity error");
1914 }
1915 if (edma_err_cause & (EDMA_ERR_DEV_DCON | EDMA_ERR_DEV_CON)) {
1916 ata_ehi_hotplugged(ehi);
1917 ata_ehi_push_desc(ehi, edma_err_cause & EDMA_ERR_DEV_DCON ?
1918 "dev disconnect" : "dev connect");
1919 action |= ATA_EH_RESET;
1920 }
1921
1922
1923
1924
1925
1926 if (IS_GEN_I(hpriv)) {
1927 eh_freeze_mask = EDMA_EH_FREEZE_5;
1928 if (edma_err_cause & EDMA_ERR_SELF_DIS_5) {
1929 pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN;
1930 ata_ehi_push_desc(ehi, "EDMA self-disable");
1931 }
1932 } else {
1933 eh_freeze_mask = EDMA_EH_FREEZE;
1934 if (edma_err_cause & EDMA_ERR_SELF_DIS) {
1935 pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN;
1936 ata_ehi_push_desc(ehi, "EDMA self-disable");
1937 }
1938 if (edma_err_cause & EDMA_ERR_SERR) {
1939 ata_ehi_push_desc(ehi, "SError=%08x", serr);
1940 err_mask |= AC_ERR_ATA_BUS;
1941 action |= ATA_EH_RESET;
1942 }
1943 }
1944
1945 if (!err_mask) {
1946 err_mask = AC_ERR_OTHER;
1947 action |= ATA_EH_RESET;
1948 }
1949
1950 ehi->serror |= serr;
1951 ehi->action |= action;
1952
1953 if (qc)
1954 qc->err_mask |= err_mask;
1955 else
1956 ehi->err_mask |= err_mask;
1957
1958 if (err_mask == AC_ERR_DEV) {
1959
1960
1961
1962
1963
1964 mv_eh_freeze(ap);
1965 abort = 1;
1966 } else if (edma_err_cause & eh_freeze_mask) {
1967
1968
1969
1970 ata_port_freeze(ap);
1971 } else {
1972 abort = 1;
1973 }
1974
1975 if (abort) {
1976 if (qc)
1977 ata_link_abort(qc->dev->link);
1978 else
1979 ata_port_abort(ap);
1980 }
1981}
1982
1983static void mv_process_crpb_response(struct ata_port *ap,
1984 struct mv_crpb *response, unsigned int tag, int ncq_enabled)
1985{
1986 struct ata_queued_cmd *qc = ata_qc_from_tag(ap, tag);
1987
1988 if (qc) {
1989 u8 ata_status;
1990 u16 edma_status = le16_to_cpu(response->flags);
1991
1992
1993
1994
1995
1996 if (!ncq_enabled) {
1997 u8 err_cause = edma_status & 0xff & ~EDMA_ERR_DEV;
1998 if (err_cause) {
1999
2000
2001
2002
2003 return;
2004 }
2005 }
2006 ata_status = edma_status >> CRPB_FLAG_STATUS_SHIFT;
2007 if (!ac_err_mask(ata_status))
2008 ata_qc_complete(qc);
2009
2010 } else {
2011 ata_port_printk(ap, KERN_ERR, "%s: no qc for tag=%d\n",
2012 __func__, tag);
2013 }
2014}
2015
2016static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp)
2017{
2018 void __iomem *port_mmio = mv_ap_base(ap);
2019 struct mv_host_priv *hpriv = ap->host->private_data;
2020 u32 in_index;
2021 bool work_done = false;
2022 int ncq_enabled = (pp->pp_flags & MV_PP_FLAG_NCQ_EN);
2023
2024
2025 in_index = (readl(port_mmio + EDMA_RSP_Q_IN_PTR_OFS)
2026 >> EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK;
2027
2028
2029 while (in_index != pp->resp_idx) {
2030 unsigned int tag;
2031 struct mv_crpb *response = &pp->crpb[pp->resp_idx];
2032
2033 pp->resp_idx = (pp->resp_idx + 1) & MV_MAX_Q_DEPTH_MASK;
2034
2035 if (IS_GEN_I(hpriv)) {
2036
2037 tag = ap->link.active_tag;
2038 } else {
2039
2040 tag = le16_to_cpu(response->id) & 0x1f;
2041 }
2042 mv_process_crpb_response(ap, response, tag, ncq_enabled);
2043 work_done = true;
2044 }
2045
2046
2047 if (work_done)
2048 writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) |
2049 (pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT),
2050 port_mmio + EDMA_RSP_Q_OUT_PTR_OFS);
2051}
2052
2053static void mv_port_intr(struct ata_port *ap, u32 port_cause)
2054{
2055 struct mv_port_priv *pp;
2056 int edma_was_enabled;
2057
2058 if (!ap || (ap->flags & ATA_FLAG_DISABLED)) {
2059 mv_unexpected_intr(ap, 0);
2060 return;
2061 }
2062
2063
2064
2065
2066
2067 pp = ap->private_data;
2068 edma_was_enabled = (pp->pp_flags & MV_PP_FLAG_EDMA_EN);
2069
2070
2071
2072 if (edma_was_enabled && (port_cause & DONE_IRQ)) {
2073 mv_process_crpb_entries(ap, pp);
2074 if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH)
2075 mv_handle_fbs_ncq_dev_err(ap);
2076 }
2077
2078
2079
2080 if (unlikely(port_cause & ERR_IRQ)) {
2081 mv_err_intr(ap);
2082 } else if (!edma_was_enabled) {
2083 struct ata_queued_cmd *qc = mv_get_active_qc(ap);
2084 if (qc)
2085 ata_sff_host_intr(ap, qc);
2086 else
2087 mv_unexpected_intr(ap, edma_was_enabled);
2088 }
2089}
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099static int mv_host_intr(struct ata_host *host, u32 main_irq_cause)
2100{
2101 struct mv_host_priv *hpriv = host->private_data;
2102 void __iomem *mmio = hpriv->base, *hc_mmio;
2103 unsigned int handled = 0, port;
2104
2105 for (port = 0; port < hpriv->n_ports; port++) {
2106 struct ata_port *ap = host->ports[port];
2107 unsigned int p, shift, hardport, port_cause;
2108
2109 MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport);
2110
2111
2112
2113
2114 if (hardport == 0) {
2115 u32 hc_cause = (main_irq_cause >> shift) & HC0_IRQ_PEND;
2116 u32 port_mask, ack_irqs;
2117
2118
2119
2120 if (!hc_cause) {
2121 port += MV_PORTS_PER_HC - 1;
2122 continue;
2123 }
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136 ack_irqs = 0;
2137 for (p = 0; p < MV_PORTS_PER_HC; ++p) {
2138 if ((port + p) >= hpriv->n_ports)
2139 break;
2140 port_mask = (DONE_IRQ | ERR_IRQ) << (p * 2);
2141 if (hc_cause & port_mask)
2142 ack_irqs |= (DMA_IRQ | DEV_IRQ) << p;
2143 }
2144 hc_mmio = mv_hc_base_from_port(mmio, port);
2145 writelfl(~ack_irqs, hc_mmio + HC_IRQ_CAUSE_OFS);
2146 handled = 1;
2147 }
2148
2149
2150
2151 port_cause = (main_irq_cause >> shift) & (DONE_IRQ | ERR_IRQ);
2152 if (port_cause)
2153 mv_port_intr(ap, port_cause);
2154 }
2155 return handled;
2156}
2157
2158static int mv_pci_error(struct ata_host *host, void __iomem *mmio)
2159{
2160 struct mv_host_priv *hpriv = host->private_data;
2161 struct ata_port *ap;
2162 struct ata_queued_cmd *qc;
2163 struct ata_eh_info *ehi;
2164 unsigned int i, err_mask, printed = 0;
2165 u32 err_cause;
2166
2167 err_cause = readl(mmio + hpriv->irq_cause_ofs);
2168
2169 dev_printk(KERN_ERR, host->dev, "PCI ERROR; PCI IRQ cause=0x%08x\n",
2170 err_cause);
2171
2172 DPRINTK("All regs @ PCI error\n");
2173 mv_dump_all_regs(mmio, -1, to_pci_dev(host->dev));
2174
2175 writelfl(0, mmio + hpriv->irq_cause_ofs);
2176
2177 for (i = 0; i < host->n_ports; i++) {
2178 ap = host->ports[i];
2179 if (!ata_link_offline(&ap->link)) {
2180 ehi = &ap->link.eh_info;
2181 ata_ehi_clear_desc(ehi);
2182 if (!printed++)
2183 ata_ehi_push_desc(ehi,
2184 "PCI err cause 0x%08x", err_cause);
2185 err_mask = AC_ERR_HOST_BUS;
2186 ehi->action = ATA_EH_RESET;
2187 qc = ata_qc_from_tag(ap, ap->link.active_tag);
2188 if (qc)
2189 qc->err_mask |= err_mask;
2190 else
2191 ehi->err_mask |= err_mask;
2192
2193 ata_port_freeze(ap);
2194 }
2195 }
2196 return 1;
2197}
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213static irqreturn_t mv_interrupt(int irq, void *dev_instance)
2214{
2215 struct ata_host *host = dev_instance;
2216 struct mv_host_priv *hpriv = host->private_data;
2217 unsigned int handled = 0;
2218 u32 main_irq_cause, pending_irqs;
2219
2220 spin_lock(&host->lock);
2221 main_irq_cause = readl(hpriv->main_irq_cause_addr);
2222 pending_irqs = main_irq_cause & hpriv->main_irq_mask;
2223
2224
2225
2226
2227 if (pending_irqs && main_irq_cause != 0xffffffffU) {
2228 if (unlikely((pending_irqs & PCI_ERR) && !IS_SOC(hpriv)))
2229 handled = mv_pci_error(host, hpriv->base);
2230 else
2231 handled = mv_host_intr(host, pending_irqs);
2232 }
2233 spin_unlock(&host->lock);
2234 return IRQ_RETVAL(handled);
2235}
2236
2237static unsigned int mv5_scr_offset(unsigned int sc_reg_in)
2238{
2239 unsigned int ofs;
2240
2241 switch (sc_reg_in) {
2242 case SCR_STATUS:
2243 case SCR_ERROR:
2244 case SCR_CONTROL:
2245 ofs = sc_reg_in * sizeof(u32);
2246 break;
2247 default:
2248 ofs = 0xffffffffU;
2249 break;
2250 }
2251 return ofs;
2252}
2253
2254static int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val)
2255{
2256 struct mv_host_priv *hpriv = link->ap->host->private_data;
2257 void __iomem *mmio = hpriv->base;
2258 void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no);
2259 unsigned int ofs = mv5_scr_offset(sc_reg_in);
2260
2261 if (ofs != 0xffffffffU) {
2262 *val = readl(addr + ofs);
2263 return 0;
2264 } else
2265 return -EINVAL;
2266}
2267
2268static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
2269{
2270 struct mv_host_priv *hpriv = link->ap->host->private_data;
2271 void __iomem *mmio = hpriv->base;
2272 void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no);
2273 unsigned int ofs = mv5_scr_offset(sc_reg_in);
2274
2275 if (ofs != 0xffffffffU) {
2276 writelfl(val, addr + ofs);
2277 return 0;
2278 } else
2279 return -EINVAL;
2280}
2281
2282static void mv5_reset_bus(struct ata_host *host, void __iomem *mmio)
2283{
2284 struct pci_dev *pdev = to_pci_dev(host->dev);
2285 int early_5080;
2286
2287 early_5080 = (pdev->device == 0x5080) && (pdev->revision == 0);
2288
2289 if (!early_5080) {
2290 u32 tmp = readl(mmio + MV_PCI_EXP_ROM_BAR_CTL);
2291 tmp |= (1 << 0);
2292 writel(tmp, mmio + MV_PCI_EXP_ROM_BAR_CTL);
2293 }
2294
2295 mv_reset_pci_bus(host, mmio);
2296}
2297
2298static void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio)
2299{
2300 writel(0x0fcfffff, mmio + MV_FLASH_CTL_OFS);
2301}
2302
2303static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx,
2304 void __iomem *mmio)
2305{
2306 void __iomem *phy_mmio = mv5_phy_base(mmio, idx);
2307 u32 tmp;
2308
2309 tmp = readl(phy_mmio + MV5_PHY_MODE);
2310
2311 hpriv->signal[idx].pre = tmp & 0x1800;
2312 hpriv->signal[idx].amps = tmp & 0xe0;
2313}
2314
2315static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio)
2316{
2317 u32 tmp;
2318
2319 writel(0, mmio + MV_GPIO_PORT_CTL_OFS);
2320
2321
2322
2323 tmp = readl(mmio + MV_PCI_EXP_ROM_BAR_CTL);
2324 tmp |= ~(1 << 0);
2325 writel(tmp, mmio + MV_PCI_EXP_ROM_BAR_CTL);
2326}
2327
2328static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
2329 unsigned int port)
2330{
2331 void __iomem *phy_mmio = mv5_phy_base(mmio, port);
2332 const u32 mask = (1<<12) | (1<<11) | (1<<7) | (1<<6) | (1<<5);
2333 u32 tmp;
2334 int fix_apm_sq = (hpriv->hp_flags & MV_HP_ERRATA_50XXB0);
2335
2336 if (fix_apm_sq) {
2337 tmp = readl(phy_mmio + MV5_LTMODE_OFS);
2338 tmp |= (1 << 19);
2339 writel(tmp, phy_mmio + MV5_LTMODE_OFS);
2340
2341 tmp = readl(phy_mmio + MV5_PHY_CTL_OFS);
2342 tmp &= ~0x3;
2343 tmp |= 0x1;
2344 writel(tmp, phy_mmio + MV5_PHY_CTL_OFS);
2345 }
2346
2347 tmp = readl(phy_mmio + MV5_PHY_MODE);
2348 tmp &= ~mask;
2349 tmp |= hpriv->signal[port].pre;
2350 tmp |= hpriv->signal[port].amps;
2351 writel(tmp, phy_mmio + MV5_PHY_MODE);
2352}
2353
2354
2355#undef ZERO
2356#define ZERO(reg) writel(0, port_mmio + (reg))
2357static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio,
2358 unsigned int port)
2359{
2360 void __iomem *port_mmio = mv_port_base(mmio, port);
2361
2362 mv_reset_channel(hpriv, mmio, port);
2363
2364 ZERO(0x028);
2365 writel(0x11f, port_mmio + EDMA_CFG_OFS);
2366 ZERO(0x004);
2367 ZERO(0x008);
2368 ZERO(0x00c);
2369 ZERO(0x010);
2370 ZERO(0x014);
2371 ZERO(0x018);
2372 ZERO(0x01c);
2373 ZERO(0x024);
2374 ZERO(0x020);
2375 ZERO(0x02c);
2376 writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS);
2377}
2378#undef ZERO
2379
2380#define ZERO(reg) writel(0, hc_mmio + (reg))
2381static void mv5_reset_one_hc(struct mv_host_priv *hpriv, void __iomem *mmio,
2382 unsigned int hc)
2383{
2384 void __iomem *hc_mmio = mv_hc_base(mmio, hc);
2385 u32 tmp;
2386
2387 ZERO(0x00c);
2388 ZERO(0x010);
2389 ZERO(0x014);
2390 ZERO(0x018);
2391
2392 tmp = readl(hc_mmio + 0x20);
2393 tmp &= 0x1c1c1c1c;
2394 tmp |= 0x03030303;
2395 writel(tmp, hc_mmio + 0x20);
2396}
2397#undef ZERO
2398
2399static int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio,
2400 unsigned int n_hc)
2401{
2402 unsigned int hc, port;
2403
2404 for (hc = 0; hc < n_hc; hc++) {
2405 for (port = 0; port < MV_PORTS_PER_HC; port++)
2406 mv5_reset_hc_port(hpriv, mmio,
2407 (hc * MV_PORTS_PER_HC) + port);
2408
2409 mv5_reset_one_hc(hpriv, mmio, hc);
2410 }
2411
2412 return 0;
2413}
2414
2415#undef ZERO
2416#define ZERO(reg) writel(0, mmio + (reg))
2417static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio)
2418{
2419 struct mv_host_priv *hpriv = host->private_data;
2420 u32 tmp;
2421
2422 tmp = readl(mmio + MV_PCI_MODE_OFS);
2423 tmp &= 0xff00ffff;
2424 writel(tmp, mmio + MV_PCI_MODE_OFS);
2425
2426 ZERO(MV_PCI_DISC_TIMER);
2427 ZERO(MV_PCI_MSI_TRIGGER);
2428 writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT_OFS);
2429 ZERO(MV_PCI_SERR_MASK);
2430 ZERO(hpriv->irq_cause_ofs);
2431 ZERO(hpriv->irq_mask_ofs);
2432 ZERO(MV_PCI_ERR_LOW_ADDRESS);
2433 ZERO(MV_PCI_ERR_HIGH_ADDRESS);
2434 ZERO(MV_PCI_ERR_ATTRIBUTE);
2435 ZERO(MV_PCI_ERR_COMMAND);
2436}
2437#undef ZERO
2438
2439static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio)
2440{
2441 u32 tmp;
2442
2443 mv5_reset_flash(hpriv, mmio);
2444
2445 tmp = readl(mmio + MV_GPIO_PORT_CTL_OFS);
2446 tmp &= 0x3;
2447 tmp |= (1 << 5) | (1 << 6);
2448 writel(tmp, mmio + MV_GPIO_PORT_CTL_OFS);
2449}
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio,
2461 unsigned int n_hc)
2462{
2463 void __iomem *reg = mmio + PCI_MAIN_CMD_STS_OFS;
2464 int i, rc = 0;
2465 u32 t;
2466
2467
2468
2469
2470 t = readl(reg);
2471 writel(t | STOP_PCI_MASTER, reg);
2472
2473 for (i = 0; i < 1000; i++) {
2474 udelay(1);
2475 t = readl(reg);
2476 if (PCI_MASTER_EMPTY & t)
2477 break;
2478 }
2479 if (!(PCI_MASTER_EMPTY & t)) {
2480 printk(KERN_ERR DRV_NAME ": PCI master won't flush\n");
2481 rc = 1;
2482 goto done;
2483 }
2484
2485
2486 i = 5;
2487 do {
2488 writel(t | GLOB_SFT_RST, reg);
2489 t = readl(reg);
2490 udelay(1);
2491 } while (!(GLOB_SFT_RST & t) && (i-- > 0));
2492
2493 if (!(GLOB_SFT_RST & t)) {
2494 printk(KERN_ERR DRV_NAME ": can't set global reset\n");
2495 rc = 1;
2496 goto done;
2497 }
2498
2499
2500 i = 5;
2501 do {
2502 writel(t & ~(GLOB_SFT_RST | STOP_PCI_MASTER), reg);
2503 t = readl(reg);
2504 udelay(1);
2505 } while ((GLOB_SFT_RST & t) && (i-- > 0));
2506
2507 if (GLOB_SFT_RST & t) {
2508 printk(KERN_ERR DRV_NAME ": can't clear global reset\n");
2509 rc = 1;
2510 }
2511done:
2512 return rc;
2513}
2514
2515static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
2516 void __iomem *mmio)
2517{
2518 void __iomem *port_mmio;
2519 u32 tmp;
2520
2521 tmp = readl(mmio + MV_RESET_CFG_OFS);
2522 if ((tmp & (1 << 0)) == 0) {
2523 hpriv->signal[idx].amps = 0x7 << 8;
2524 hpriv->signal[idx].pre = 0x1 << 5;
2525 return;
2526 }
2527
2528 port_mmio = mv_port_base(mmio, idx);
2529 tmp = readl(port_mmio + PHY_MODE2);
2530
2531 hpriv->signal[idx].amps = tmp & 0x700;
2532 hpriv->signal[idx].pre = tmp & 0xe0;
2533}
2534
2535static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio)
2536{
2537 writel(0x00000060, mmio + MV_GPIO_PORT_CTL_OFS);
2538}
2539
2540static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
2541 unsigned int port)
2542{
2543 void __iomem *port_mmio = mv_port_base(mmio, port);
2544
2545 u32 hp_flags = hpriv->hp_flags;
2546 int fix_phy_mode2 =
2547 hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0);
2548 int fix_phy_mode4 =
2549 hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0);
2550 u32 m2, m3;
2551
2552 if (fix_phy_mode2) {
2553 m2 = readl(port_mmio + PHY_MODE2);
2554 m2 &= ~(1 << 16);
2555 m2 |= (1 << 31);
2556 writel(m2, port_mmio + PHY_MODE2);
2557
2558 udelay(200);
2559
2560 m2 = readl(port_mmio + PHY_MODE2);
2561 m2 &= ~((1 << 16) | (1 << 31));
2562 writel(m2, port_mmio + PHY_MODE2);
2563
2564 udelay(200);
2565 }
2566
2567
2568
2569
2570
2571 m3 = readl(port_mmio + PHY_MODE3);
2572 m3 = (m3 & 0x1f) | (0x5555601 << 5);
2573
2574
2575 if (IS_SOC(hpriv))
2576 m3 &= ~0x1c;
2577
2578 if (fix_phy_mode4) {
2579 u32 m4 = readl(port_mmio + PHY_MODE4);
2580
2581
2582
2583
2584
2585 if (IS_GEN_IIE(hpriv))
2586 m4 = (m4 & ~PHY_MODE4_RSVD_ZEROS) | PHY_MODE4_RSVD_ONES;
2587 else
2588 m4 = (m4 & ~PHY_MODE4_CFG_MASK) | PHY_MODE4_CFG_VALUE;
2589 writel(m4, port_mmio + PHY_MODE4);
2590 }
2591
2592
2593
2594
2595
2596 writel(m3, port_mmio + PHY_MODE3);
2597
2598
2599 m2 = readl(port_mmio + PHY_MODE2);
2600
2601 m2 &= ~MV_M2_PREAMP_MASK;
2602 m2 |= hpriv->signal[port].amps;
2603 m2 |= hpriv->signal[port].pre;
2604 m2 &= ~(1 << 16);
2605
2606
2607 if (IS_GEN_IIE(hpriv)) {
2608 m2 &= ~0xC30FF01F;
2609 m2 |= 0x0000900F;
2610 }
2611
2612 writel(m2, port_mmio + PHY_MODE2);
2613}
2614
2615
2616
2617static void mv_soc_enable_leds(struct mv_host_priv *hpriv,
2618 void __iomem *mmio)
2619{
2620 return;
2621}
2622
2623static void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx,
2624 void __iomem *mmio)
2625{
2626 void __iomem *port_mmio;
2627 u32 tmp;
2628
2629 port_mmio = mv_port_base(mmio, idx);
2630 tmp = readl(port_mmio + PHY_MODE2);
2631
2632 hpriv->signal[idx].amps = tmp & 0x700;
2633 hpriv->signal[idx].pre = tmp & 0xe0;
2634}
2635
2636#undef ZERO
2637#define ZERO(reg) writel(0, port_mmio + (reg))
2638static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv,
2639 void __iomem *mmio, unsigned int port)
2640{
2641 void __iomem *port_mmio = mv_port_base(mmio, port);
2642
2643 mv_reset_channel(hpriv, mmio, port);
2644
2645 ZERO(0x028);
2646 writel(0x101f, port_mmio + EDMA_CFG_OFS);
2647 ZERO(0x004);
2648 ZERO(0x008);
2649 ZERO(0x00c);
2650 ZERO(0x010);
2651 ZERO(0x014);
2652 ZERO(0x018);
2653 ZERO(0x01c);
2654 ZERO(0x024);
2655 ZERO(0x020);
2656 ZERO(0x02c);
2657 writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS);
2658}
2659
2660#undef ZERO
2661
2662#define ZERO(reg) writel(0, hc_mmio + (reg))
2663static void mv_soc_reset_one_hc(struct mv_host_priv *hpriv,
2664 void __iomem *mmio)
2665{
2666 void __iomem *hc_mmio = mv_hc_base(mmio, 0);
2667
2668 ZERO(0x00c);
2669 ZERO(0x010);
2670 ZERO(0x014);
2671
2672}
2673
2674#undef ZERO
2675
2676static int mv_soc_reset_hc(struct mv_host_priv *hpriv,
2677 void __iomem *mmio, unsigned int n_hc)
2678{
2679 unsigned int port;
2680
2681 for (port = 0; port < hpriv->n_ports; port++)
2682 mv_soc_reset_hc_port(hpriv, mmio, port);
2683
2684 mv_soc_reset_one_hc(hpriv, mmio);
2685
2686 return 0;
2687}
2688
2689static void mv_soc_reset_flash(struct mv_host_priv *hpriv,
2690 void __iomem *mmio)
2691{
2692 return;
2693}
2694
2695static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio)
2696{
2697 return;
2698}
2699
2700static void mv_setup_ifcfg(void __iomem *port_mmio, int want_gen2i)
2701{
2702 u32 ifcfg = readl(port_mmio + SATA_INTERFACE_CFG_OFS);
2703
2704 ifcfg = (ifcfg & 0xf7f) | 0x9b1000;
2705 if (want_gen2i)
2706 ifcfg |= (1 << 7);
2707 writelfl(ifcfg, port_mmio + SATA_INTERFACE_CFG_OFS);
2708}
2709
2710static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio,
2711 unsigned int port_no)
2712{
2713 void __iomem *port_mmio = mv_port_base(mmio, port_no);
2714
2715
2716
2717
2718
2719
2720 mv_stop_edma_engine(port_mmio);
2721 writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS);
2722
2723 if (!IS_GEN_I(hpriv)) {
2724
2725 mv_setup_ifcfg(port_mmio, 1);
2726 }
2727
2728
2729
2730
2731
2732 writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS);
2733 udelay(25);
2734 writelfl(0, port_mmio + EDMA_CMD_OFS);
2735
2736 hpriv->ops->phy_errata(hpriv, mmio, port_no);
2737
2738 if (IS_GEN_I(hpriv))
2739 mdelay(1);
2740}
2741
2742static void mv_pmp_select(struct ata_port *ap, int pmp)
2743{
2744 if (sata_pmp_supported(ap)) {
2745 void __iomem *port_mmio = mv_ap_base(ap);
2746 u32 reg = readl(port_mmio + SATA_IFCTL_OFS);
2747 int old = reg & 0xf;
2748
2749 if (old != pmp) {
2750 reg = (reg & ~0xf) | pmp;
2751 writelfl(reg, port_mmio + SATA_IFCTL_OFS);
2752 }
2753 }
2754}
2755
2756static int mv_pmp_hardreset(struct ata_link *link, unsigned int *class,
2757 unsigned long deadline)
2758{
2759 mv_pmp_select(link->ap, sata_srst_pmp(link));
2760 return sata_std_hardreset(link, class, deadline);
2761}
2762
2763static int mv_softreset(struct ata_link *link, unsigned int *class,
2764 unsigned long deadline)
2765{
2766 mv_pmp_select(link->ap, sata_srst_pmp(link));
2767 return ata_sff_softreset(link, class, deadline);
2768}
2769
2770static int mv_hardreset(struct ata_link *link, unsigned int *class,
2771 unsigned long deadline)
2772{
2773 struct ata_port *ap = link->ap;
2774 struct mv_host_priv *hpriv = ap->host->private_data;
2775 struct mv_port_priv *pp = ap->private_data;
2776 void __iomem *mmio = hpriv->base;
2777 int rc, attempts = 0, extra = 0;
2778 u32 sstatus;
2779 bool online;
2780
2781 mv_reset_channel(hpriv, mmio, ap->port_no);
2782 pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN;
2783
2784
2785 do {
2786 const unsigned long *timing =
2787 sata_ehc_deb_timing(&link->eh_context);
2788
2789 rc = sata_link_hardreset(link, timing, deadline + extra,
2790 &online, NULL);
2791 rc = online ? -EAGAIN : rc;
2792 if (rc)
2793 return rc;
2794 sata_scr_read(link, SCR_STATUS, &sstatus);
2795 if (!IS_GEN_I(hpriv) && ++attempts >= 5 && sstatus == 0x121) {
2796
2797 mv_setup_ifcfg(mv_ap_base(ap), 0);
2798 if (time_after(jiffies + HZ, deadline))
2799 extra = HZ;
2800 }
2801 } while (sstatus != 0x0 && sstatus != 0x113 && sstatus != 0x123);
2802
2803 return rc;
2804}
2805
2806static void mv_eh_freeze(struct ata_port *ap)
2807{
2808 mv_stop_edma(ap);
2809 mv_enable_port_irqs(ap, 0);
2810}
2811
2812static void mv_eh_thaw(struct ata_port *ap)
2813{
2814 struct mv_host_priv *hpriv = ap->host->private_data;
2815 unsigned int port = ap->port_no;
2816 unsigned int hardport = mv_hardport_from_port(port);
2817 void __iomem *hc_mmio = mv_hc_base_from_port(hpriv->base, port);
2818 void __iomem *port_mmio = mv_ap_base(ap);
2819 u32 hc_irq_cause;
2820
2821
2822 writel(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
2823
2824
2825 hc_irq_cause = readl(hc_mmio + HC_IRQ_CAUSE_OFS);
2826 hc_irq_cause &= ~((DEV_IRQ | DMA_IRQ) << hardport);
2827 writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS);
2828
2829 mv_enable_port_irqs(ap, ERR_IRQ);
2830}
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844static void mv_port_init(struct ata_ioports *port, void __iomem *port_mmio)
2845{
2846 void __iomem *shd_base = port_mmio + SHD_BLK_OFS;
2847 unsigned serr_ofs;
2848
2849
2850
2851 port->data_addr = shd_base + (sizeof(u32) * ATA_REG_DATA);
2852 port->error_addr =
2853 port->feature_addr = shd_base + (sizeof(u32) * ATA_REG_ERR);
2854 port->nsect_addr = shd_base + (sizeof(u32) * ATA_REG_NSECT);
2855 port->lbal_addr = shd_base + (sizeof(u32) * ATA_REG_LBAL);
2856 port->lbam_addr = shd_base + (sizeof(u32) * ATA_REG_LBAM);
2857 port->lbah_addr = shd_base + (sizeof(u32) * ATA_REG_LBAH);
2858 port->device_addr = shd_base + (sizeof(u32) * ATA_REG_DEVICE);
2859 port->status_addr =
2860 port->command_addr = shd_base + (sizeof(u32) * ATA_REG_STATUS);
2861
2862 port->altstatus_addr = port->ctl_addr = shd_base + SHD_CTL_AST_OFS;
2863
2864
2865 port->cmd_addr = port->bmdma_addr = port->scr_addr = NULL;
2866
2867
2868 serr_ofs = mv_scr_offset(SCR_ERROR);
2869 writelfl(readl(port_mmio + serr_ofs), port_mmio + serr_ofs);
2870 writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
2871
2872
2873 writelfl(~EDMA_ERR_IRQ_TRANSIENT, port_mmio + EDMA_ERR_IRQ_MASK_OFS);
2874
2875 VPRINTK("EDMA cfg=0x%08x EDMA IRQ err cause/mask=0x%08x/0x%08x\n",
2876 readl(port_mmio + EDMA_CFG_OFS),
2877 readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS),
2878 readl(port_mmio + EDMA_ERR_IRQ_MASK_OFS));
2879}
2880
2881static unsigned int mv_in_pcix_mode(struct ata_host *host)
2882{
2883 struct mv_host_priv *hpriv = host->private_data;
2884 void __iomem *mmio = hpriv->base;
2885 u32 reg;
2886
2887 if (IS_SOC(hpriv) || !IS_PCIE(hpriv))
2888 return 0;
2889 reg = readl(mmio + MV_PCI_MODE_OFS);
2890 if ((reg & MV_PCI_MODE_MASK) == 0)
2891 return 0;
2892 return 1;
2893}
2894
2895static int mv_pci_cut_through_okay(struct ata_host *host)
2896{
2897 struct mv_host_priv *hpriv = host->private_data;
2898 void __iomem *mmio = hpriv->base;
2899 u32 reg;
2900
2901 if (!mv_in_pcix_mode(host)) {
2902 reg = readl(mmio + PCI_COMMAND_OFS);
2903 if (reg & PCI_COMMAND_MRDTRIG)
2904 return 0;
2905 }
2906 return 1;
2907}
2908
2909static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
2910{
2911 struct pci_dev *pdev = to_pci_dev(host->dev);
2912 struct mv_host_priv *hpriv = host->private_data;
2913 u32 hp_flags = hpriv->hp_flags;
2914
2915 switch (board_idx) {
2916 case chip_5080:
2917 hpriv->ops = &mv5xxx_ops;
2918 hp_flags |= MV_HP_GEN_I;
2919
2920 switch (pdev->revision) {
2921 case 0x1:
2922 hp_flags |= MV_HP_ERRATA_50XXB0;
2923 break;
2924 case 0x3:
2925 hp_flags |= MV_HP_ERRATA_50XXB2;
2926 break;
2927 default:
2928 dev_printk(KERN_WARNING, &pdev->dev,
2929 "Applying 50XXB2 workarounds to unknown rev\n");
2930 hp_flags |= MV_HP_ERRATA_50XXB2;
2931 break;
2932 }
2933 break;
2934
2935 case chip_504x:
2936 case chip_508x:
2937 hpriv->ops = &mv5xxx_ops;
2938 hp_flags |= MV_HP_GEN_I;
2939
2940 switch (pdev->revision) {
2941 case 0x0:
2942 hp_flags |= MV_HP_ERRATA_50XXB0;
2943 break;
2944 case 0x3:
2945 hp_flags |= MV_HP_ERRATA_50XXB2;
2946 break;
2947 default:
2948 dev_printk(KERN_WARNING, &pdev->dev,
2949 "Applying B2 workarounds to unknown rev\n");
2950 hp_flags |= MV_HP_ERRATA_50XXB2;
2951 break;
2952 }
2953 break;
2954
2955 case chip_604x:
2956 case chip_608x:
2957 hpriv->ops = &mv6xxx_ops;
2958 hp_flags |= MV_HP_GEN_II;
2959
2960 switch (pdev->revision) {
2961 case 0x7:
2962 hp_flags |= MV_HP_ERRATA_60X1B2;
2963 break;
2964 case 0x9:
2965 hp_flags |= MV_HP_ERRATA_60X1C0;
2966 break;
2967 default:
2968 dev_printk(KERN_WARNING, &pdev->dev,
2969 "Applying B2 workarounds to unknown rev\n");
2970 hp_flags |= MV_HP_ERRATA_60X1B2;
2971 break;
2972 }
2973 break;
2974
2975 case chip_7042:
2976 hp_flags |= MV_HP_PCIE | MV_HP_CUT_THROUGH;
2977 if (pdev->vendor == PCI_VENDOR_ID_TTI &&
2978 (pdev->device == 0x2300 || pdev->device == 0x2310))
2979 {
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997 printk(KERN_WARNING DRV_NAME ": Highpoint RocketRAID"
2998 " BIOS CORRUPTS DATA on all attached drives,"
2999 " regardless of if/how they are configured."
3000 " BEWARE!\n");
3001 printk(KERN_WARNING DRV_NAME ": For data safety, do not"
3002 " use sectors 8-9 on \"Legacy\" drives,"
3003 " and avoid the final two gigabytes on"
3004 " all RocketRAID BIOS initialized drives.\n");
3005 }
3006
3007 case chip_6042:
3008 hpriv->ops = &mv6xxx_ops;
3009 hp_flags |= MV_HP_GEN_IIE;
3010 if (board_idx == chip_6042 && mv_pci_cut_through_okay(host))
3011 hp_flags |= MV_HP_CUT_THROUGH;
3012
3013 switch (pdev->revision) {
3014 case 0x2:
3015 hp_flags |= MV_HP_ERRATA_60X1C0;
3016 break;
3017 default:
3018 dev_printk(KERN_WARNING, &pdev->dev,
3019 "Applying 60X1C0 workarounds to unknown rev\n");
3020 hp_flags |= MV_HP_ERRATA_60X1C0;
3021 break;
3022 }
3023 break;
3024 case chip_soc:
3025 hpriv->ops = &mv_soc_ops;
3026 hp_flags |= MV_HP_FLAG_SOC | MV_HP_GEN_IIE |
3027 MV_HP_ERRATA_60X1C0;
3028 break;
3029
3030 default:
3031 dev_printk(KERN_ERR, host->dev,
3032 "BUG: invalid board index %u\n", board_idx);
3033 return 1;
3034 }
3035
3036 hpriv->hp_flags = hp_flags;
3037 if (hp_flags & MV_HP_PCIE) {
3038 hpriv->irq_cause_ofs = PCIE_IRQ_CAUSE_OFS;
3039 hpriv->irq_mask_ofs = PCIE_IRQ_MASK_OFS;
3040 hpriv->unmask_all_irqs = PCIE_UNMASK_ALL_IRQS;
3041 } else {
3042 hpriv->irq_cause_ofs = PCI_IRQ_CAUSE_OFS;
3043 hpriv->irq_mask_ofs = PCI_IRQ_MASK_OFS;
3044 hpriv->unmask_all_irqs = PCI_UNMASK_ALL_IRQS;
3045 }
3046
3047 return 0;
3048}
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061static int mv_init_host(struct ata_host *host, unsigned int board_idx)
3062{
3063 int rc = 0, n_hc, port, hc;
3064 struct mv_host_priv *hpriv = host->private_data;
3065 void __iomem *mmio = hpriv->base;
3066
3067 rc = mv_chip_id(host, board_idx);
3068 if (rc)
3069 goto done;
3070
3071 if (IS_SOC(hpriv)) {
3072 hpriv->main_irq_cause_addr = mmio + SOC_HC_MAIN_IRQ_CAUSE_OFS;
3073 hpriv->main_irq_mask_addr = mmio + SOC_HC_MAIN_IRQ_MASK_OFS;
3074 } else {
3075 hpriv->main_irq_cause_addr = mmio + PCI_HC_MAIN_IRQ_CAUSE_OFS;
3076 hpriv->main_irq_mask_addr = mmio + PCI_HC_MAIN_IRQ_MASK_OFS;
3077 }
3078
3079
3080 mv_set_main_irq_mask(host, ~0, 0);
3081
3082 n_hc = mv_get_hc_count(host->ports[0]->flags);
3083
3084 for (port = 0; port < host->n_ports; port++)
3085 hpriv->ops->read_preamp(hpriv, port, mmio);
3086
3087 rc = hpriv->ops->reset_hc(hpriv, mmio, n_hc);
3088 if (rc)
3089 goto done;
3090
3091 hpriv->ops->reset_flash(hpriv, mmio);
3092 hpriv->ops->reset_bus(host, mmio);
3093 hpriv->ops->enable_leds(hpriv, mmio);
3094
3095 for (port = 0; port < host->n_ports; port++) {
3096 struct ata_port *ap = host->ports[port];
3097 void __iomem *port_mmio = mv_port_base(mmio, port);
3098
3099 mv_port_init(&ap->ioaddr, port_mmio);
3100
3101#ifdef CONFIG_PCI
3102 if (!IS_SOC(hpriv)) {
3103 unsigned int offset = port_mmio - mmio;
3104 ata_port_pbar_desc(ap, MV_PRIMARY_BAR, -1, "mmio");
3105 ata_port_pbar_desc(ap, MV_PRIMARY_BAR, offset, "port");
3106 }
3107#endif
3108 }
3109
3110 for (hc = 0; hc < n_hc; hc++) {
3111 void __iomem *hc_mmio = mv_hc_base(mmio, hc);
3112
3113 VPRINTK("HC%i: HC config=0x%08x HC IRQ cause "
3114 "(before clear)=0x%08x\n", hc,
3115 readl(hc_mmio + HC_CFG_OFS),
3116 readl(hc_mmio + HC_IRQ_CAUSE_OFS));
3117
3118
3119 writelfl(0, hc_mmio + HC_IRQ_CAUSE_OFS);
3120 }
3121
3122 if (!IS_SOC(hpriv)) {
3123
3124 writelfl(0, mmio + hpriv->irq_cause_ofs);
3125
3126
3127 writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs);
3128
3129
3130
3131
3132
3133 mv_set_main_irq_mask(host, 0, PCI_ERR);
3134 }
3135done:
3136 return rc;
3137}
3138
3139static int mv_create_dma_pools(struct mv_host_priv *hpriv, struct device *dev)
3140{
3141 hpriv->crqb_pool = dmam_pool_create("crqb_q", dev, MV_CRQB_Q_SZ,
3142 MV_CRQB_Q_SZ, 0);
3143 if (!hpriv->crqb_pool)
3144 return -ENOMEM;
3145
3146 hpriv->crpb_pool = dmam_pool_create("crpb_q", dev, MV_CRPB_Q_SZ,
3147 MV_CRPB_Q_SZ, 0);
3148 if (!hpriv->crpb_pool)
3149 return -ENOMEM;
3150
3151 hpriv->sg_tbl_pool = dmam_pool_create("sg_tbl", dev, MV_SG_TBL_SZ,
3152 MV_SG_TBL_SZ, 0);
3153 if (!hpriv->sg_tbl_pool)
3154 return -ENOMEM;
3155
3156 return 0;
3157}
3158
3159static void mv_conf_mbus_windows(struct mv_host_priv *hpriv,
3160 struct mbus_dram_target_info *dram)
3161{
3162 int i;
3163
3164 for (i = 0; i < 4; i++) {
3165 writel(0, hpriv->base + WINDOW_CTRL(i));
3166 writel(0, hpriv->base + WINDOW_BASE(i));
3167 }
3168
3169 for (i = 0; i < dram->num_cs; i++) {
3170 struct mbus_dram_window *cs = dram->cs + i;
3171
3172 writel(((cs->size - 1) & 0xffff0000) |
3173 (cs->mbus_attr << 8) |
3174 (dram->mbus_dram_target_id << 4) | 1,
3175 hpriv->base + WINDOW_CTRL(i));
3176 writel(cs->base, hpriv->base + WINDOW_BASE(i));
3177 }
3178}
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188static int mv_platform_probe(struct platform_device *pdev)
3189{
3190 static int printed_version;
3191 const struct mv_sata_platform_data *mv_platform_data;
3192 const struct ata_port_info *ppi[] =
3193 { &mv_port_info[chip_soc], NULL };
3194 struct ata_host *host;
3195 struct mv_host_priv *hpriv;
3196 struct resource *res;
3197 int n_ports, rc;
3198
3199 if (!printed_version++)
3200 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
3201
3202
3203
3204
3205 if (unlikely(pdev->num_resources != 2)) {
3206 dev_err(&pdev->dev, "invalid number of resources\n");
3207 return -EINVAL;
3208 }
3209
3210
3211
3212
3213 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
3214 if (res == NULL)
3215 return -EINVAL;
3216
3217
3218 mv_platform_data = pdev->dev.platform_data;
3219 n_ports = mv_platform_data->n_ports;
3220
3221 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
3222 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
3223
3224 if (!host || !hpriv)
3225 return -ENOMEM;
3226 host->private_data = hpriv;
3227 hpriv->n_ports = n_ports;
3228
3229 host->iomap = NULL;
3230 hpriv->base = devm_ioremap(&pdev->dev, res->start,
3231 res->end - res->start + 1);
3232 hpriv->base -= MV_SATAHC0_REG_BASE;
3233
3234
3235
3236
3237 if (mv_platform_data->dram != NULL)
3238 mv_conf_mbus_windows(hpriv, mv_platform_data->dram);
3239
3240 rc = mv_create_dma_pools(hpriv, &pdev->dev);
3241 if (rc)
3242 return rc;
3243
3244
3245 rc = mv_init_host(host, chip_soc);
3246 if (rc)
3247 return rc;
3248
3249 dev_printk(KERN_INFO, &pdev->dev,
3250 "slots %u ports %d\n", (unsigned)MV_MAX_Q_DEPTH,
3251 host->n_ports);
3252
3253 return ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt,
3254 IRQF_SHARED, &mv6_sht);
3255}
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265static int __devexit mv_platform_remove(struct platform_device *pdev)
3266{
3267 struct device *dev = &pdev->dev;
3268 struct ata_host *host = dev_get_drvdata(dev);
3269
3270 ata_host_detach(host);
3271 return 0;
3272}
3273
3274static struct platform_driver mv_platform_driver = {
3275 .probe = mv_platform_probe,
3276 .remove = __devexit_p(mv_platform_remove),
3277 .driver = {
3278 .name = DRV_NAME,
3279 .owner = THIS_MODULE,
3280 },
3281};
3282
3283
3284#ifdef CONFIG_PCI
3285static int mv_pci_init_one(struct pci_dev *pdev,
3286 const struct pci_device_id *ent);
3287
3288
3289static struct pci_driver mv_pci_driver = {
3290 .name = DRV_NAME,
3291 .id_table = mv_pci_tbl,
3292 .probe = mv_pci_init_one,
3293 .remove = ata_pci_remove_one,
3294};
3295
3296
3297
3298
3299static int msi;
3300
3301
3302
3303static int pci_go_64(struct pci_dev *pdev)
3304{
3305 int rc;
3306
3307 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
3308 rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
3309 if (rc) {
3310 rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
3311 if (rc) {
3312 dev_printk(KERN_ERR, &pdev->dev,
3313 "64-bit DMA enable failed\n");
3314 return rc;
3315 }
3316 }
3317 } else {
3318 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
3319 if (rc) {
3320 dev_printk(KERN_ERR, &pdev->dev,
3321 "32-bit DMA enable failed\n");
3322 return rc;
3323 }
3324 rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
3325 if (rc) {
3326 dev_printk(KERN_ERR, &pdev->dev,
3327 "32-bit consistent DMA enable failed\n");
3328 return rc;
3329 }
3330 }
3331
3332 return rc;
3333}
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344static void mv_print_info(struct ata_host *host)
3345{
3346 struct pci_dev *pdev = to_pci_dev(host->dev);
3347 struct mv_host_priv *hpriv = host->private_data;
3348 u8 scc;
3349 const char *scc_s, *gen;
3350
3351
3352
3353
3354 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &scc);
3355 if (scc == 0)
3356 scc_s = "SCSI";
3357 else if (scc == 0x01)
3358 scc_s = "RAID";
3359 else
3360 scc_s = "?";
3361
3362 if (IS_GEN_I(hpriv))
3363 gen = "I";
3364 else if (IS_GEN_II(hpriv))
3365 gen = "II";
3366 else if (IS_GEN_IIE(hpriv))
3367 gen = "IIE";
3368 else
3369 gen = "?";
3370
3371 dev_printk(KERN_INFO, &pdev->dev,
3372 "Gen-%s %u slots %u ports %s mode IRQ via %s\n",
3373 gen, (unsigned)MV_MAX_Q_DEPTH, host->n_ports,
3374 scc_s, (MV_HP_FLAG_MSI & hpriv->hp_flags) ? "MSI" : "INTx");
3375}
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385static int mv_pci_init_one(struct pci_dev *pdev,
3386 const struct pci_device_id *ent)
3387{
3388 static int printed_version;
3389 unsigned int board_idx = (unsigned int)ent->driver_data;
3390 const struct ata_port_info *ppi[] = { &mv_port_info[board_idx], NULL };
3391 struct ata_host *host;
3392 struct mv_host_priv *hpriv;
3393 int n_ports, rc;
3394
3395 if (!printed_version++)
3396 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
3397
3398
3399 n_ports = mv_get_hc_count(ppi[0]->flags) * MV_PORTS_PER_HC;
3400
3401 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
3402 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
3403 if (!host || !hpriv)
3404 return -ENOMEM;
3405 host->private_data = hpriv;
3406 hpriv->n_ports = n_ports;
3407
3408
3409 rc = pcim_enable_device(pdev);
3410 if (rc)
3411 return rc;
3412
3413 rc = pcim_iomap_regions(pdev, 1 << MV_PRIMARY_BAR, DRV_NAME);
3414 if (rc == -EBUSY)
3415 pcim_pin_device(pdev);
3416 if (rc)
3417 return rc;
3418 host->iomap = pcim_iomap_table(pdev);
3419 hpriv->base = host->iomap[MV_PRIMARY_BAR];
3420
3421 rc = pci_go_64(pdev);
3422 if (rc)
3423 return rc;
3424
3425 rc = mv_create_dma_pools(hpriv, &pdev->dev);
3426 if (rc)
3427 return rc;
3428
3429
3430 rc = mv_init_host(host, board_idx);
3431 if (rc)
3432 return rc;
3433
3434
3435 if (msi && pci_enable_msi(pdev))
3436 pci_intx(pdev, 1);
3437
3438 mv_dump_pci_cfg(pdev, 0x68);
3439 mv_print_info(host);
3440
3441 pci_set_master(pdev);
3442 pci_try_set_mwi(pdev);
3443 return ata_host_activate(host, pdev->irq, mv_interrupt, IRQF_SHARED,
3444 IS_GEN_I(hpriv) ? &mv5_sht : &mv6_sht);
3445}
3446#endif
3447
3448static int mv_platform_probe(struct platform_device *pdev);
3449static int __devexit mv_platform_remove(struct platform_device *pdev);
3450
3451static int __init mv_init(void)
3452{
3453 int rc = -ENODEV;
3454#ifdef CONFIG_PCI
3455 rc = pci_register_driver(&mv_pci_driver);
3456 if (rc < 0)
3457 return rc;
3458#endif
3459 rc = platform_driver_register(&mv_platform_driver);
3460
3461#ifdef CONFIG_PCI
3462 if (rc < 0)
3463 pci_unregister_driver(&mv_pci_driver);
3464#endif
3465 return rc;
3466}
3467
3468static void __exit mv_exit(void)
3469{
3470#ifdef CONFIG_PCI
3471 pci_unregister_driver(&mv_pci_driver);
3472#endif
3473 platform_driver_unregister(&mv_platform_driver);
3474}
3475
3476MODULE_AUTHOR("Brett Russ");
3477MODULE_DESCRIPTION("SCSI low-level driver for Marvell SATA controllers");
3478MODULE_LICENSE("GPL");
3479MODULE_DEVICE_TABLE(pci, mv_pci_tbl);
3480MODULE_VERSION(DRV_VERSION);
3481MODULE_ALIAS("platform:" DRV_NAME);
3482
3483#ifdef CONFIG_PCI
3484module_param(msi, int, 0444);
3485MODULE_PARM_DESC(msi, "Enable use of PCI MSI (0=off, 1=on)");
3486#endif
3487
3488module_init(mv_init);
3489module_exit(mv_exit);