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11#include <linux/pci.h>
12#include <linux/slab.h>
13#include <linux/module.h>
14#include <linux/acpi.h>
15#include <linux/reset.h>
16
17#include "xhci.h"
18#include "xhci-trace.h"
19#include "xhci-pci.h"
20
21#define SSIC_PORT_NUM 2
22#define SSIC_PORT_CFG2 0x880c
23#define SSIC_PORT_CFG2_OFFSET 0x30
24#define PROG_DONE (1 << 30)
25#define SSIC_PORT_UNUSED (1 << 31)
26#define SPARSE_DISABLE_BIT 17
27#define SPARSE_CNTL_ENABLE 0xC12C
28
29
30#define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73
31#define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000
32#define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009 0x1009
33#define PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 0x1100
34#define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400 0x1400
35
36#define PCI_VENDOR_ID_ETRON 0x1b6f
37#define PCI_DEVICE_ID_EJ168 0x7023
38
39#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31
40#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
41#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI 0x9cb1
42#define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5
43#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI 0xa12f
44#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI 0x9d2f
45#define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI 0x0aa8
46#define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI 0x1aa8
47#define PCI_DEVICE_ID_INTEL_APL_XHCI 0x5aa8
48#define PCI_DEVICE_ID_INTEL_DNV_XHCI 0x19d0
49#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI 0x15b5
50#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_XHCI 0x15b6
51#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_XHCI 0x15c1
52#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_XHCI 0x15db
53#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_XHCI 0x15d4
54#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI 0x15e9
55#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI 0x15ec
56#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI 0x15f0
57#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13
58#define PCI_DEVICE_ID_INTEL_CML_XHCI 0xa3af
59#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13
60#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138
61#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI 0x461e
62
63#define PCI_DEVICE_ID_AMD_RENOIR_XHCI 0x1639
64#define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9
65#define PCI_DEVICE_ID_AMD_PROMONTORYA_3 0x43ba
66#define PCI_DEVICE_ID_AMD_PROMONTORYA_2 0x43bb
67#define PCI_DEVICE_ID_AMD_PROMONTORYA_1 0x43bc
68#define PCI_DEVICE_ID_ASMEDIA_1042_XHCI 0x1042
69#define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI 0x1142
70#define PCI_DEVICE_ID_ASMEDIA_1142_XHCI 0x1242
71#define PCI_DEVICE_ID_ASMEDIA_2142_XHCI 0x2142
72#define PCI_DEVICE_ID_ASMEDIA_3242_XHCI 0x3242
73
74static const char hcd_name[] = "xhci_hcd";
75
76static struct hc_driver __read_mostly xhci_pci_hc_driver;
77
78static int xhci_pci_setup(struct usb_hcd *hcd);
79
80static const struct xhci_driver_overrides xhci_pci_overrides __initconst = {
81 .reset = xhci_pci_setup,
82};
83
84
85static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev)
86{
87
88
89
90
91
92
93
94 if (!pci_set_mwi(pdev))
95 xhci_dbg(xhci, "MWI active\n");
96
97 xhci_dbg(xhci, "Finished xhci_pci_reinit\n");
98 return 0;
99}
100
101static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
102{
103 struct pci_dev *pdev = to_pci_dev(dev);
104 struct xhci_driver_data *driver_data;
105 const struct pci_device_id *id;
106
107 id = pci_match_id(pdev->driver->id_table, pdev);
108
109 if (id && id->driver_data) {
110 driver_data = (struct xhci_driver_data *)id->driver_data;
111 xhci->quirks |= driver_data->quirks;
112 }
113
114
115 if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
116 (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK ||
117 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 ||
118 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1400)) {
119 if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
120 pdev->revision == 0x0) {
121 xhci->quirks |= XHCI_RESET_EP_QUIRK;
122 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
123 "QUIRK: Fresco Logic xHC needs configure"
124 " endpoint cmd after reset endpoint");
125 }
126 if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
127 pdev->revision == 0x4) {
128 xhci->quirks |= XHCI_SLOW_SUSPEND;
129 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
130 "QUIRK: Fresco Logic xHC revision %u"
131 "must be suspended extra slowly",
132 pdev->revision);
133 }
134 if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK)
135 xhci->quirks |= XHCI_BROKEN_STREAMS;
136
137
138
139
140 xhci->quirks |= XHCI_BROKEN_MSI;
141 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
142 "QUIRK: Fresco Logic revision %u "
143 "has broken MSI implementation",
144 pdev->revision);
145 xhci->quirks |= XHCI_TRUST_TX_LENGTH;
146 }
147
148 if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
149 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1009)
150 xhci->quirks |= XHCI_BROKEN_STREAMS;
151
152 if (pdev->vendor == PCI_VENDOR_ID_NEC)
153 xhci->quirks |= XHCI_NEC_HOST;
154
155 if (pdev->vendor == PCI_VENDOR_ID_AMD && xhci->hci_version == 0x96)
156 xhci->quirks |= XHCI_AMD_0x96_HOST;
157
158
159 if (pdev->vendor == PCI_VENDOR_ID_AMD && usb_amd_quirk_pll_check())
160 xhci->quirks |= XHCI_AMD_PLL_FIX;
161
162 if (pdev->vendor == PCI_VENDOR_ID_AMD &&
163 (pdev->device == 0x145c ||
164 pdev->device == 0x15e0 ||
165 pdev->device == 0x15e1 ||
166 pdev->device == 0x43bb))
167 xhci->quirks |= XHCI_SUSPEND_DELAY;
168
169 if (pdev->vendor == PCI_VENDOR_ID_AMD &&
170 (pdev->device == 0x15e0 || pdev->device == 0x15e1))
171 xhci->quirks |= XHCI_SNPS_BROKEN_SUSPEND;
172
173 if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x15e5) {
174 xhci->quirks |= XHCI_DISABLE_SPARSE;
175 xhci->quirks |= XHCI_RESET_ON_RESUME;
176 }
177
178 if (pdev->vendor == PCI_VENDOR_ID_AMD)
179 xhci->quirks |= XHCI_TRUST_TX_LENGTH;
180
181 if ((pdev->vendor == PCI_VENDOR_ID_AMD) &&
182 ((pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4) ||
183 (pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_3) ||
184 (pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_2) ||
185 (pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_1)))
186 xhci->quirks |= XHCI_U2_DISABLE_WAKE;
187
188 if (pdev->vendor == PCI_VENDOR_ID_AMD &&
189 pdev->device == PCI_DEVICE_ID_AMD_RENOIR_XHCI)
190 xhci->quirks |= XHCI_BROKEN_D3COLD;
191
192 if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
193 xhci->quirks |= XHCI_LPM_SUPPORT;
194 xhci->quirks |= XHCI_INTEL_HOST;
195 xhci->quirks |= XHCI_AVOID_BEI;
196 }
197 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
198 pdev->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_XHCI) {
199 xhci->quirks |= XHCI_EP_LIMIT_QUIRK;
200 xhci->limit_active_eps = 64;
201 xhci->quirks |= XHCI_SW_BW_CHECKING;
202
203
204
205
206
207
208
209
210 xhci->quirks |= XHCI_SPURIOUS_REBOOT;
211 }
212 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
213 (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI ||
214 pdev->device == PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI)) {
215 xhci->quirks |= XHCI_SPURIOUS_REBOOT;
216 xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
217 }
218 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
219 (pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
220 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
221 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
222 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI ||
223 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI ||
224 pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
225 pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI ||
226 pdev->device == PCI_DEVICE_ID_INTEL_CML_XHCI)) {
227 xhci->quirks |= XHCI_PME_STUCK_QUIRK;
228 }
229 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
230 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI)
231 xhci->quirks |= XHCI_SSIC_PORT_UNUSED;
232 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
233 (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
234 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
235 pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI))
236 xhci->quirks |= XHCI_INTEL_USB_ROLE_SW;
237 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
238 (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
239 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
240 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
241 pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
242 pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI))
243 xhci->quirks |= XHCI_MISSING_CAS;
244
245 if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
246 (pdev->device == PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI ||
247 pdev->device == PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_XHCI ||
248 pdev->device == PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_XHCI ||
249 pdev->device == PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_XHCI ||
250 pdev->device == PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_XHCI ||
251 pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI ||
252 pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI ||
253 pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI ||
254 pdev->device == PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI ||
255 pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI ||
256 pdev->device == PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI ||
257 pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI))
258 xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
259
260 if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
261 pdev->device == PCI_DEVICE_ID_EJ168) {
262 xhci->quirks |= XHCI_RESET_ON_RESUME;
263 xhci->quirks |= XHCI_TRUST_TX_LENGTH;
264 xhci->quirks |= XHCI_BROKEN_STREAMS;
265 }
266 if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
267 pdev->device == 0x0014) {
268 xhci->quirks |= XHCI_TRUST_TX_LENGTH;
269 xhci->quirks |= XHCI_ZERO_64B_REGS;
270 }
271 if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
272 pdev->device == 0x0015) {
273 xhci->quirks |= XHCI_RESET_ON_RESUME;
274 xhci->quirks |= XHCI_ZERO_64B_REGS;
275 }
276 if (pdev->vendor == PCI_VENDOR_ID_VIA)
277 xhci->quirks |= XHCI_RESET_ON_RESUME;
278
279
280 if (pdev->vendor == PCI_VENDOR_ID_VIA &&
281 pdev->device == 0x3432)
282 xhci->quirks |= XHCI_BROKEN_STREAMS;
283
284 if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
285 xhci->quirks |= XHCI_LPM_SUPPORT;
286 xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
287 }
288
289 if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
290 pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI)
291 xhci->quirks |= XHCI_BROKEN_STREAMS;
292 if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
293 pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI) {
294 xhci->quirks |= XHCI_TRUST_TX_LENGTH;
295 xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
296 }
297 if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
298 (pdev->device == PCI_DEVICE_ID_ASMEDIA_1142_XHCI ||
299 pdev->device == PCI_DEVICE_ID_ASMEDIA_2142_XHCI ||
300 pdev->device == PCI_DEVICE_ID_ASMEDIA_3242_XHCI))
301 xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
302
303 if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
304 pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)
305 xhci->quirks |= XHCI_ASMEDIA_MODIFY_FLOWCONTROL;
306
307 if (pdev->vendor == PCI_VENDOR_ID_TI && pdev->device == 0x8241)
308 xhci->quirks |= XHCI_LIMIT_ENDPOINT_INTERVAL_7;
309
310 if ((pdev->vendor == PCI_VENDOR_ID_BROADCOM ||
311 pdev->vendor == PCI_VENDOR_ID_CAVIUM) &&
312 pdev->device == 0x9026)
313 xhci->quirks |= XHCI_RESET_PLL_ON_DISCONNECT;
314
315 if (pdev->vendor == PCI_VENDOR_ID_AMD &&
316 (pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_2 ||
317 pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4))
318 xhci->quirks |= XHCI_NO_SOFT_RETRY;
319
320 if (xhci->quirks & XHCI_RESET_ON_RESUME)
321 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
322 "QUIRK: Resetting on resume");
323}
324
325#ifdef CONFIG_ACPI
326static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev)
327{
328 static const guid_t intel_dsm_guid =
329 GUID_INIT(0xac340cb7, 0xe901, 0x45bf,
330 0xb7, 0xe6, 0x2b, 0x34, 0xec, 0x93, 0x1e, 0x23);
331 union acpi_object *obj;
332
333 obj = acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), &intel_dsm_guid, 3, 1,
334 NULL);
335 ACPI_FREE(obj);
336}
337#else
338static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { }
339#endif
340
341
342static int xhci_pci_setup(struct usb_hcd *hcd)
343{
344 struct xhci_hcd *xhci;
345 struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
346 int retval;
347
348 xhci = hcd_to_xhci(hcd);
349 if (!xhci->sbrn)
350 pci_read_config_byte(pdev, XHCI_SBRN_OFFSET, &xhci->sbrn);
351
352
353 xhci->imod_interval = 40000;
354
355 retval = xhci_gen_setup(hcd, xhci_pci_quirks);
356 if (retval)
357 return retval;
358
359 if (!usb_hcd_is_primary_hcd(hcd))
360 return 0;
361
362 if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
363 xhci_pme_acpi_rtd3_enable(pdev);
364
365 xhci_dbg(xhci, "Got SBRN %u\n", (unsigned int) xhci->sbrn);
366
367
368 return xhci_pci_reinit(xhci, pdev);
369}
370
371
372
373
374
375static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
376{
377 int retval;
378 struct xhci_hcd *xhci;
379 struct usb_hcd *hcd;
380 struct xhci_driver_data *driver_data;
381 struct reset_control *reset;
382
383 driver_data = (struct xhci_driver_data *)id->driver_data;
384 if (driver_data && driver_data->quirks & XHCI_RENESAS_FW_QUIRK) {
385 retval = renesas_xhci_check_request_fw(dev, id);
386 if (retval)
387 return retval;
388 }
389
390 reset = devm_reset_control_get_optional_exclusive(&dev->dev, NULL);
391 if (IS_ERR(reset))
392 return PTR_ERR(reset);
393 reset_control_reset(reset);
394
395
396 pm_runtime_get_noresume(&dev->dev);
397
398
399
400
401
402
403
404 retval = usb_hcd_pci_probe(dev, id, &xhci_pci_hc_driver);
405
406 if (retval)
407 goto put_runtime_pm;
408
409
410 hcd = dev_get_drvdata(&dev->dev);
411 xhci = hcd_to_xhci(hcd);
412 xhci->reset = reset;
413 xhci->shared_hcd = usb_create_shared_hcd(&xhci_pci_hc_driver, &dev->dev,
414 pci_name(dev), hcd);
415 if (!xhci->shared_hcd) {
416 retval = -ENOMEM;
417 goto dealloc_usb2_hcd;
418 }
419
420 retval = xhci_ext_cap_init(xhci);
421 if (retval)
422 goto put_usb3_hcd;
423
424 retval = usb_add_hcd(xhci->shared_hcd, dev->irq,
425 IRQF_SHARED);
426 if (retval)
427 goto put_usb3_hcd;
428
429
430 if (!(xhci->quirks & XHCI_BROKEN_STREAMS) &&
431 HCC_MAX_PSA(xhci->hcc_params) >= 4)
432 xhci->shared_hcd->can_do_streams = 1;
433
434
435 pm_runtime_put_noidle(&dev->dev);
436
437 if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW)
438 pm_runtime_allow(&dev->dev);
439
440 return 0;
441
442put_usb3_hcd:
443 usb_put_hcd(xhci->shared_hcd);
444dealloc_usb2_hcd:
445 usb_hcd_pci_remove(dev);
446put_runtime_pm:
447 pm_runtime_put_noidle(&dev->dev);
448 return retval;
449}
450
451static void xhci_pci_remove(struct pci_dev *dev)
452{
453 struct xhci_hcd *xhci;
454
455 xhci = hcd_to_xhci(pci_get_drvdata(dev));
456
457 xhci->xhc_state |= XHCI_STATE_REMOVING;
458
459 if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW)
460 pm_runtime_forbid(&dev->dev);
461
462 if (xhci->shared_hcd) {
463 usb_remove_hcd(xhci->shared_hcd);
464 usb_put_hcd(xhci->shared_hcd);
465 xhci->shared_hcd = NULL;
466 }
467
468
469 if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
470 pci_set_power_state(dev, PCI_D3hot);
471
472 usb_hcd_pci_remove(dev);
473}
474
475#ifdef CONFIG_PM
476
477
478
479
480
481
482
483static void xhci_ssic_port_unused_quirk(struct usb_hcd *hcd, bool suspend)
484{
485 struct xhci_hcd *xhci = hcd_to_xhci(hcd);
486 u32 val;
487 void __iomem *reg;
488 int i;
489
490 for (i = 0; i < SSIC_PORT_NUM; i++) {
491 reg = (void __iomem *) xhci->cap_regs +
492 SSIC_PORT_CFG2 +
493 i * SSIC_PORT_CFG2_OFFSET;
494
495
496 val = readl(reg) & ~PROG_DONE;
497 writel(val, reg);
498
499
500 val = readl(reg);
501 if (suspend)
502 val |= SSIC_PORT_UNUSED;
503 else
504 val &= ~SSIC_PORT_UNUSED;
505 writel(val, reg);
506
507
508 val = readl(reg) | PROG_DONE;
509 writel(val, reg);
510 readl(reg);
511 }
512}
513
514
515
516
517
518static void xhci_pme_quirk(struct usb_hcd *hcd)
519{
520 struct xhci_hcd *xhci = hcd_to_xhci(hcd);
521 void __iomem *reg;
522 u32 val;
523
524 reg = (void __iomem *) xhci->cap_regs + 0x80a4;
525 val = readl(reg);
526 writel(val | BIT(28), reg);
527 readl(reg);
528}
529
530static void xhci_sparse_control_quirk(struct usb_hcd *hcd)
531{
532 u32 reg;
533
534 reg = readl(hcd->regs + SPARSE_CNTL_ENABLE);
535 reg &= ~BIT(SPARSE_DISABLE_BIT);
536 writel(reg, hcd->regs + SPARSE_CNTL_ENABLE);
537}
538
539static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
540{
541 struct xhci_hcd *xhci = hcd_to_xhci(hcd);
542 struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
543 int ret;
544
545
546
547
548
549 if (xhci->quirks & (XHCI_COMP_MODE_QUIRK | XHCI_BROKEN_D3COLD))
550 pci_d3cold_disable(pdev);
551
552 if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
553 xhci_pme_quirk(hcd);
554
555 if (xhci->quirks & XHCI_SSIC_PORT_UNUSED)
556 xhci_ssic_port_unused_quirk(hcd, true);
557
558 if (xhci->quirks & XHCI_DISABLE_SPARSE)
559 xhci_sparse_control_quirk(hcd);
560
561 ret = xhci_suspend(xhci, do_wakeup);
562 if (ret && (xhci->quirks & XHCI_SSIC_PORT_UNUSED))
563 xhci_ssic_port_unused_quirk(hcd, false);
564
565 return ret;
566}
567
568static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
569{
570 struct xhci_hcd *xhci = hcd_to_xhci(hcd);
571 struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
572 int retval = 0;
573
574 reset_control_reset(xhci->reset);
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594 if (pdev->vendor == PCI_VENDOR_ID_INTEL)
595 usb_enable_intel_xhci_ports(pdev);
596
597 if (xhci->quirks & XHCI_SSIC_PORT_UNUSED)
598 xhci_ssic_port_unused_quirk(hcd, false);
599
600 if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
601 xhci_pme_quirk(hcd);
602
603 retval = xhci_resume(xhci, hibernated);
604 return retval;
605}
606
607static void xhci_pci_shutdown(struct usb_hcd *hcd)
608{
609 struct xhci_hcd *xhci = hcd_to_xhci(hcd);
610 struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
611
612 xhci_shutdown(hcd);
613
614
615 if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
616 pci_set_power_state(pdev, PCI_D3hot);
617}
618#endif
619
620
621
622static const struct xhci_driver_data reneses_data = {
623 .quirks = XHCI_RENESAS_FW_QUIRK,
624 .firmware = "renesas_usb_fw.mem",
625};
626
627
628static const struct pci_device_id pci_ids[] = {
629 { PCI_DEVICE(0x1912, 0x0014),
630 .driver_data = (unsigned long)&reneses_data,
631 },
632 { PCI_DEVICE(0x1912, 0x0015),
633 .driver_data = (unsigned long)&reneses_data,
634 },
635
636 { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_XHCI, ~0),
637 },
638 { }
639};
640MODULE_DEVICE_TABLE(pci, pci_ids);
641
642
643
644
645
646#if IS_ENABLED(CONFIG_USB_XHCI_PCI_RENESAS)
647MODULE_FIRMWARE("renesas_usb_fw.mem");
648#endif
649
650
651static struct pci_driver xhci_pci_driver = {
652 .name = hcd_name,
653 .id_table = pci_ids,
654
655 .probe = xhci_pci_probe,
656 .remove = xhci_pci_remove,
657
658
659 .shutdown = usb_hcd_pci_shutdown,
660#ifdef CONFIG_PM
661 .driver = {
662 .pm = &usb_hcd_pci_pm_ops
663 },
664#endif
665};
666
667static int __init xhci_pci_init(void)
668{
669 xhci_init_driver(&xhci_pci_hc_driver, &xhci_pci_overrides);
670#ifdef CONFIG_PM
671 xhci_pci_hc_driver.pci_suspend = xhci_pci_suspend;
672 xhci_pci_hc_driver.pci_resume = xhci_pci_resume;
673 xhci_pci_hc_driver.shutdown = xhci_pci_shutdown;
674#endif
675 return pci_register_driver(&xhci_pci_driver);
676}
677module_init(xhci_pci_init);
678
679static void __exit xhci_pci_exit(void)
680{
681 pci_unregister_driver(&xhci_pci_driver);
682}
683module_exit(xhci_pci_exit);
684
685MODULE_DESCRIPTION("xHCI PCI Host Controller Driver");
686MODULE_LICENSE("GPL");
687