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15#include <linux/delay.h>
16#include <linux/highmem.h>
17#include <linux/module.h>
18#include <linux/pci.h>
19#include <linux/dma-mapping.h>
20#include <linux/slab.h>
21#include <linux/device.h>
22#include <linux/mmc/host.h>
23#include <linux/mmc/mmc.h>
24#include <linux/scatterlist.h>
25#include <linux/io.h>
26#include <linux/gpio.h>
27#include <linux/pm_runtime.h>
28#include <linux/mmc/slot-gpio.h>
29#include <linux/mmc/sdhci-pci-data.h>
30
31#include "sdhci.h"
32#include "sdhci-pci.h"
33#include "sdhci-pci-o2micro.h"
34
35
36
37
38
39
40
41static int ricoh_probe(struct sdhci_pci_chip *chip)
42{
43 if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG ||
44 chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY)
45 chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET;
46 return 0;
47}
48
49static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot)
50{
51 slot->host->caps =
52 ((0x21 << SDHCI_TIMEOUT_CLK_SHIFT)
53 & SDHCI_TIMEOUT_CLK_MASK) |
54
55 ((0x21 << SDHCI_CLOCK_BASE_SHIFT)
56 & SDHCI_CLOCK_BASE_MASK) |
57
58 SDHCI_TIMEOUT_CLK_UNIT |
59 SDHCI_CAN_VDD_330 |
60 SDHCI_CAN_DO_HISPD |
61 SDHCI_CAN_DO_SDMA;
62 return 0;
63}
64
65static int ricoh_mmc_resume(struct sdhci_pci_chip *chip)
66{
67
68
69
70 msleep(500);
71 return 0;
72}
73
74static const struct sdhci_pci_fixes sdhci_ricoh = {
75 .probe = ricoh_probe,
76 .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
77 SDHCI_QUIRK_FORCE_DMA |
78 SDHCI_QUIRK_CLOCK_BEFORE_RESET,
79};
80
81static const struct sdhci_pci_fixes sdhci_ricoh_mmc = {
82 .probe_slot = ricoh_mmc_probe_slot,
83 .resume = ricoh_mmc_resume,
84 .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
85 SDHCI_QUIRK_CLOCK_BEFORE_RESET |
86 SDHCI_QUIRK_NO_CARD_NO_RESET |
87 SDHCI_QUIRK_MISSING_CAPS
88};
89
90static const struct sdhci_pci_fixes sdhci_ene_712 = {
91 .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
92 SDHCI_QUIRK_BROKEN_DMA,
93};
94
95static const struct sdhci_pci_fixes sdhci_ene_714 = {
96 .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
97 SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |
98 SDHCI_QUIRK_BROKEN_DMA,
99};
100
101static const struct sdhci_pci_fixes sdhci_cafe = {
102 .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
103 SDHCI_QUIRK_NO_BUSY_IRQ |
104 SDHCI_QUIRK_BROKEN_CARD_DETECTION |
105 SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
106};
107
108static const struct sdhci_pci_fixes sdhci_intel_qrk = {
109 .quirks = SDHCI_QUIRK_NO_HISPD_BIT,
110};
111
112static int mrst_hc_probe_slot(struct sdhci_pci_slot *slot)
113{
114 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
115 return 0;
116}
117
118
119
120
121
122static int mrst_hc_probe(struct sdhci_pci_chip *chip)
123{
124
125
126
127
128 chip->num_slots = 1;
129 return 0;
130}
131
132static int pch_hc_probe_slot(struct sdhci_pci_slot *slot)
133{
134 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
135 return 0;
136}
137
138#ifdef CONFIG_PM
139
140static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id)
141{
142 struct sdhci_pci_slot *slot = dev_id;
143 struct sdhci_host *host = slot->host;
144
145 mmc_detect_change(host->mmc, msecs_to_jiffies(200));
146 return IRQ_HANDLED;
147}
148
149static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
150{
151 int err, irq, gpio = slot->cd_gpio;
152
153 slot->cd_gpio = -EINVAL;
154 slot->cd_irq = -EINVAL;
155
156 if (!gpio_is_valid(gpio))
157 return;
158
159 err = gpio_request(gpio, "sd_cd");
160 if (err < 0)
161 goto out;
162
163 err = gpio_direction_input(gpio);
164 if (err < 0)
165 goto out_free;
166
167 irq = gpio_to_irq(gpio);
168 if (irq < 0)
169 goto out_free;
170
171 err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING |
172 IRQF_TRIGGER_FALLING, "sd_cd", slot);
173 if (err)
174 goto out_free;
175
176 slot->cd_gpio = gpio;
177 slot->cd_irq = irq;
178
179 return;
180
181out_free:
182 gpio_free(gpio);
183out:
184 dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
185}
186
187static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
188{
189 if (slot->cd_irq >= 0)
190 free_irq(slot->cd_irq, slot);
191 if (gpio_is_valid(slot->cd_gpio))
192 gpio_free(slot->cd_gpio);
193}
194
195#else
196
197static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
198{
199}
200
201static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
202{
203}
204
205#endif
206
207static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
208{
209 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
210 slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC |
211 MMC_CAP2_HC_ERASE_SZ;
212 return 0;
213}
214
215static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
216{
217 slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE;
218 return 0;
219}
220
221static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = {
222 .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
223 .probe_slot = mrst_hc_probe_slot,
224};
225
226static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
227 .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
228 .probe = mrst_hc_probe,
229};
230
231static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
232 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
233 .allow_runtime_pm = true,
234 .own_cd_for_runtime_pm = true,
235};
236
237static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
238 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
239 .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
240 .allow_runtime_pm = true,
241 .probe_slot = mfd_sdio_probe_slot,
242};
243
244static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = {
245 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
246 .allow_runtime_pm = true,
247 .probe_slot = mfd_emmc_probe_slot,
248};
249
250static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
251 .quirks = SDHCI_QUIRK_BROKEN_ADMA,
252 .probe_slot = pch_hc_probe_slot,
253};
254
255static void sdhci_pci_int_hw_reset(struct sdhci_host *host)
256{
257 u8 reg;
258
259 reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
260 reg |= 0x10;
261 sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
262
263 udelay(9);
264 reg &= ~0x10;
265 sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
266
267 usleep_range(300, 1000);
268}
269
270static int spt_select_drive_strength(struct sdhci_host *host,
271 struct mmc_card *card,
272 unsigned int max_dtr,
273 int host_drv, int card_drv, int *drv_type)
274{
275 int drive_strength;
276
277 if (sdhci_pci_spt_drive_strength > 0)
278 drive_strength = sdhci_pci_spt_drive_strength & 0xf;
279 else
280 drive_strength = 1;
281
282 if ((mmc_driver_type_mask(drive_strength) & card_drv) == 0)
283 drive_strength = 0;
284
285 return drive_strength;
286}
287
288
289static void spt_read_drive_strength(struct sdhci_host *host)
290{
291 u32 val, i, t;
292 u16 m;
293
294 if (sdhci_pci_spt_drive_strength)
295 return;
296
297 sdhci_pci_spt_drive_strength = -1;
298
299 m = sdhci_readw(host, SDHCI_HOST_CONTROL2) & 0x7;
300 if (m != 3 && m != 5)
301 return;
302 val = sdhci_readl(host, SDHCI_PRESENT_STATE);
303 if (val & 0x3)
304 return;
305 sdhci_writel(host, 0x007f0023, SDHCI_INT_ENABLE);
306 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);
307 sdhci_writew(host, 0x10, SDHCI_TRANSFER_MODE);
308 sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL);
309 sdhci_writew(host, 512, SDHCI_BLOCK_SIZE);
310 sdhci_writew(host, 1, SDHCI_BLOCK_COUNT);
311 sdhci_writel(host, 0, SDHCI_ARGUMENT);
312 sdhci_writew(host, 0x83b, SDHCI_COMMAND);
313 for (i = 0; i < 1000; i++) {
314 val = sdhci_readl(host, SDHCI_INT_STATUS);
315 if (val & 0xffff8000)
316 return;
317 if (val & 0x20)
318 break;
319 udelay(1);
320 }
321 val = sdhci_readl(host, SDHCI_PRESENT_STATE);
322 if (!(val & 0x800))
323 return;
324 for (i = 0; i < 47; i++)
325 val = sdhci_readl(host, SDHCI_BUFFER);
326 t = val & 0xf00;
327 if (t != 0x200 && t != 0x300)
328 return;
329
330 sdhci_pci_spt_drive_strength = 0x10 | ((val >> 12) & 0xf);
331}
332
333static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
334{
335 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
336 MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
337 MMC_CAP_BUS_WIDTH_TEST |
338 MMC_CAP_WAIT_WHILE_BUSY;
339 slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
340 slot->hw_reset = sdhci_pci_int_hw_reset;
341 if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
342 slot->host->timeout_clk = 1000;
343 if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_SPT_EMMC) {
344 spt_read_drive_strength(slot->host);
345 slot->select_drive_strength = spt_select_drive_strength;
346 }
347 return 0;
348}
349
350static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
351{
352 slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
353 MMC_CAP_BUS_WIDTH_TEST |
354 MMC_CAP_WAIT_WHILE_BUSY;
355 return 0;
356}
357
358static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
359{
360 slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST |
361 MMC_CAP_WAIT_WHILE_BUSY;
362 slot->cd_con_id = NULL;
363 slot->cd_idx = 0;
364 slot->cd_override_level = true;
365 return 0;
366}
367
368static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
369 .allow_runtime_pm = true,
370 .probe_slot = byt_emmc_probe_slot,
371 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
372 .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
373 SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
374 SDHCI_QUIRK2_STOP_WITH_TC,
375};
376
377static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
378 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
379 .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
380 SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
381 .allow_runtime_pm = true,
382 .probe_slot = byt_sdio_probe_slot,
383};
384
385static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
386 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
387 .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
388 SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
389 SDHCI_QUIRK2_STOP_WITH_TC,
390 .allow_runtime_pm = true,
391 .own_cd_for_runtime_pm = true,
392 .probe_slot = byt_sd_probe_slot,
393};
394
395
396#define INTEL_MRFL_EMMC_0 0
397#define INTEL_MRFL_EMMC_1 1
398
399static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot *slot)
400{
401 if ((PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_0) &&
402 (PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_1))
403
404 return -ENODEV;
405
406 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
407 MMC_CAP_1_8V_DDR;
408
409 return 0;
410}
411
412static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = {
413 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
414 .quirks2 = SDHCI_QUIRK2_BROKEN_HS200 |
415 SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
416 .allow_runtime_pm = true,
417 .probe_slot = intel_mrfl_mmc_probe_slot,
418};
419
420
421#define O2_SD_LOCK_WP 0xD3
422#define O2_SD_MULTI_VCC3V 0xEE
423#define O2_SD_CLKREQ 0xEC
424#define O2_SD_CAPS 0xE0
425#define O2_SD_ADMA1 0xE2
426#define O2_SD_ADMA2 0xE7
427#define O2_SD_INF_MOD 0xF1
428
429static int jmicron_pmos(struct sdhci_pci_chip *chip, int on)
430{
431 u8 scratch;
432 int ret;
433
434 ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch);
435 if (ret)
436 return ret;
437
438
439
440
441
442 if (on)
443 scratch |= 0x47;
444 else
445 scratch &= ~0x47;
446
447 return pci_write_config_byte(chip->pdev, 0xAE, scratch);
448}
449
450static int jmicron_probe(struct sdhci_pci_chip *chip)
451{
452 int ret;
453 u16 mmcdev = 0;
454
455 if (chip->pdev->revision == 0) {
456 chip->quirks |= SDHCI_QUIRK_32BIT_DMA_ADDR |
457 SDHCI_QUIRK_32BIT_DMA_SIZE |
458 SDHCI_QUIRK_32BIT_ADMA_SIZE |
459 SDHCI_QUIRK_RESET_AFTER_REQUEST |
460 SDHCI_QUIRK_BROKEN_SMALL_PIO;
461 }
462
463
464
465
466
467
468
469
470
471
472
473
474
475 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_SD)
476 mmcdev = PCI_DEVICE_ID_JMICRON_JMB38X_MMC;
477 else if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD)
478 mmcdev = PCI_DEVICE_ID_JMICRON_JMB388_ESD;
479
480 if (mmcdev) {
481 struct pci_dev *sd_dev;
482
483 sd_dev = NULL;
484 while ((sd_dev = pci_get_device(PCI_VENDOR_ID_JMICRON,
485 mmcdev, sd_dev)) != NULL) {
486 if ((PCI_SLOT(chip->pdev->devfn) ==
487 PCI_SLOT(sd_dev->devfn)) &&
488 (chip->pdev->bus == sd_dev->bus))
489 break;
490 }
491
492 if (sd_dev) {
493 pci_dev_put(sd_dev);
494 dev_info(&chip->pdev->dev, "Refusing to bind to "
495 "secondary interface.\n");
496 return -ENODEV;
497 }
498 }
499
500
501
502
503
504 ret = jmicron_pmos(chip, 1);
505 if (ret) {
506 dev_err(&chip->pdev->dev, "Failure enabling card power\n");
507 return ret;
508 }
509
510
511 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD ||
512 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
513 chip->quirks |= SDHCI_QUIRK_UNSTABLE_RO_DETECT;
514
515 return 0;
516}
517
518static void jmicron_enable_mmc(struct sdhci_host *host, int on)
519{
520 u8 scratch;
521
522 scratch = readb(host->ioaddr + 0xC0);
523
524 if (on)
525 scratch |= 0x01;
526 else
527 scratch &= ~0x01;
528
529 writeb(scratch, host->ioaddr + 0xC0);
530}
531
532static int jmicron_probe_slot(struct sdhci_pci_slot *slot)
533{
534 if (slot->chip->pdev->revision == 0) {
535 u16 version;
536
537 version = readl(slot->host->ioaddr + SDHCI_HOST_VERSION);
538 version = (version & SDHCI_VENDOR_VER_MASK) >>
539 SDHCI_VENDOR_VER_SHIFT;
540
541
542
543
544
545
546 if (version < 0xAC)
547 slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
548 }
549
550
551 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
552 slot->host->ocr_avail_sd = MMC_VDD_32_33 | MMC_VDD_33_34 |
553 MMC_VDD_29_30 | MMC_VDD_30_31 |
554 MMC_VDD_165_195;
555 slot->host->ocr_avail_mmc = MMC_VDD_32_33 | MMC_VDD_33_34 |
556 MMC_VDD_29_30 | MMC_VDD_30_31;
557 }
558
559
560
561
562
563 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
564 slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
565 jmicron_enable_mmc(slot->host, 1);
566
567 slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST;
568
569 return 0;
570}
571
572static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead)
573{
574 if (dead)
575 return;
576
577 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
578 slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
579 jmicron_enable_mmc(slot->host, 0);
580}
581
582static int jmicron_suspend(struct sdhci_pci_chip *chip)
583{
584 int i;
585
586 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
587 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
588 for (i = 0; i < chip->num_slots; i++)
589 jmicron_enable_mmc(chip->slots[i]->host, 0);
590 }
591
592 return 0;
593}
594
595static int jmicron_resume(struct sdhci_pci_chip *chip)
596{
597 int ret, i;
598
599 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
600 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
601 for (i = 0; i < chip->num_slots; i++)
602 jmicron_enable_mmc(chip->slots[i]->host, 1);
603 }
604
605 ret = jmicron_pmos(chip, 1);
606 if (ret) {
607 dev_err(&chip->pdev->dev, "Failure enabling card power\n");
608 return ret;
609 }
610
611 return 0;
612}
613
614static const struct sdhci_pci_fixes sdhci_o2 = {
615 .probe = sdhci_pci_o2_probe,
616 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
617 .quirks2 = SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD,
618 .probe_slot = sdhci_pci_o2_probe_slot,
619 .resume = sdhci_pci_o2_resume,
620};
621
622static const struct sdhci_pci_fixes sdhci_jmicron = {
623 .probe = jmicron_probe,
624
625 .probe_slot = jmicron_probe_slot,
626 .remove_slot = jmicron_remove_slot,
627
628 .suspend = jmicron_suspend,
629 .resume = jmicron_resume,
630};
631
632
633#define SYSKT_CTRL 0x200
634#define SYSKT_RDFIFO_STAT 0x204
635#define SYSKT_WRFIFO_STAT 0x208
636#define SYSKT_POWER_DATA 0x20c
637#define SYSKT_POWER_330 0xef
638#define SYSKT_POWER_300 0xf8
639#define SYSKT_POWER_184 0xcc
640#define SYSKT_POWER_CMD 0x20d
641#define SYSKT_POWER_START (1 << 7)
642#define SYSKT_POWER_STATUS 0x20e
643#define SYSKT_POWER_STATUS_OK (1 << 0)
644#define SYSKT_BOARD_REV 0x210
645#define SYSKT_CHIP_REV 0x211
646#define SYSKT_CONF_DATA 0x212
647#define SYSKT_CONF_DATA_1V8 (1 << 2)
648#define SYSKT_CONF_DATA_2V5 (1 << 1)
649#define SYSKT_CONF_DATA_3V3 (1 << 0)
650
651static int syskt_probe(struct sdhci_pci_chip *chip)
652{
653 if ((chip->pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
654 chip->pdev->class &= ~0x0000FF;
655 chip->pdev->class |= PCI_SDHCI_IFDMA;
656 }
657 return 0;
658}
659
660static int syskt_probe_slot(struct sdhci_pci_slot *slot)
661{
662 int tm, ps;
663
664 u8 board_rev = readb(slot->host->ioaddr + SYSKT_BOARD_REV);
665 u8 chip_rev = readb(slot->host->ioaddr + SYSKT_CHIP_REV);
666 dev_info(&slot->chip->pdev->dev, "SysKonnect CardBus2SDIO, "
667 "board rev %d.%d, chip rev %d.%d\n",
668 board_rev >> 4, board_rev & 0xf,
669 chip_rev >> 4, chip_rev & 0xf);
670 if (chip_rev >= 0x20)
671 slot->host->quirks |= SDHCI_QUIRK_FORCE_DMA;
672
673 writeb(SYSKT_POWER_330, slot->host->ioaddr + SYSKT_POWER_DATA);
674 writeb(SYSKT_POWER_START, slot->host->ioaddr + SYSKT_POWER_CMD);
675 udelay(50);
676 tm = 10;
677 do {
678 ps = readw(slot->host->ioaddr + SYSKT_POWER_STATUS);
679 if (ps & SYSKT_POWER_STATUS_OK)
680 break;
681 udelay(100);
682 } while (--tm);
683 if (!tm) {
684 dev_err(&slot->chip->pdev->dev,
685 "power regulator never stabilized");
686 writeb(0, slot->host->ioaddr + SYSKT_POWER_CMD);
687 return -ENODEV;
688 }
689
690 return 0;
691}
692
693static const struct sdhci_pci_fixes sdhci_syskt = {
694 .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER,
695 .probe = syskt_probe,
696 .probe_slot = syskt_probe_slot,
697};
698
699static int via_probe(struct sdhci_pci_chip *chip)
700{
701 if (chip->pdev->revision == 0x10)
702 chip->quirks |= SDHCI_QUIRK_DELAY_AFTER_POWER;
703
704 return 0;
705}
706
707static const struct sdhci_pci_fixes sdhci_via = {
708 .probe = via_probe,
709};
710
711static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
712{
713 slot->host->mmc->caps2 |= MMC_CAP2_HS200;
714 return 0;
715}
716
717static const struct sdhci_pci_fixes sdhci_rtsx = {
718 .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
719 SDHCI_QUIRK2_BROKEN_64_BIT_DMA |
720 SDHCI_QUIRK2_BROKEN_DDR50,
721 .probe_slot = rtsx_probe_slot,
722};
723
724
725enum amd_chipset_gen {
726 AMD_CHIPSET_BEFORE_ML,
727 AMD_CHIPSET_CZ,
728 AMD_CHIPSET_NL,
729 AMD_CHIPSET_UNKNOWN,
730};
731
732static int amd_probe(struct sdhci_pci_chip *chip)
733{
734 struct pci_dev *smbus_dev;
735 enum amd_chipset_gen gen;
736
737 smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
738 PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
739 if (smbus_dev) {
740 gen = AMD_CHIPSET_BEFORE_ML;
741 } else {
742 smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
743 PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
744 if (smbus_dev) {
745 if (smbus_dev->revision < 0x51)
746 gen = AMD_CHIPSET_CZ;
747 else
748 gen = AMD_CHIPSET_NL;
749 } else {
750 gen = AMD_CHIPSET_UNKNOWN;
751 }
752 }
753
754 if ((gen == AMD_CHIPSET_BEFORE_ML) || (gen == AMD_CHIPSET_CZ)) {
755 chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
756 chip->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
757 }
758
759 return 0;
760}
761
762static const struct sdhci_pci_fixes sdhci_amd = {
763 .probe = amd_probe,
764};
765
766static const struct pci_device_id pci_ids[] = {
767 {
768 .vendor = PCI_VENDOR_ID_RICOH,
769 .device = PCI_DEVICE_ID_RICOH_R5C822,
770 .subvendor = PCI_ANY_ID,
771 .subdevice = PCI_ANY_ID,
772 .driver_data = (kernel_ulong_t)&sdhci_ricoh,
773 },
774
775 {
776 .vendor = PCI_VENDOR_ID_RICOH,
777 .device = 0x843,
778 .subvendor = PCI_ANY_ID,
779 .subdevice = PCI_ANY_ID,
780 .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
781 },
782
783 {
784 .vendor = PCI_VENDOR_ID_RICOH,
785 .device = 0xe822,
786 .subvendor = PCI_ANY_ID,
787 .subdevice = PCI_ANY_ID,
788 .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
789 },
790
791 {
792 .vendor = PCI_VENDOR_ID_RICOH,
793 .device = 0xe823,
794 .subvendor = PCI_ANY_ID,
795 .subdevice = PCI_ANY_ID,
796 .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
797 },
798
799 {
800 .vendor = PCI_VENDOR_ID_ENE,
801 .device = PCI_DEVICE_ID_ENE_CB712_SD,
802 .subvendor = PCI_ANY_ID,
803 .subdevice = PCI_ANY_ID,
804 .driver_data = (kernel_ulong_t)&sdhci_ene_712,
805 },
806
807 {
808 .vendor = PCI_VENDOR_ID_ENE,
809 .device = PCI_DEVICE_ID_ENE_CB712_SD_2,
810 .subvendor = PCI_ANY_ID,
811 .subdevice = PCI_ANY_ID,
812 .driver_data = (kernel_ulong_t)&sdhci_ene_712,
813 },
814
815 {
816 .vendor = PCI_VENDOR_ID_ENE,
817 .device = PCI_DEVICE_ID_ENE_CB714_SD,
818 .subvendor = PCI_ANY_ID,
819 .subdevice = PCI_ANY_ID,
820 .driver_data = (kernel_ulong_t)&sdhci_ene_714,
821 },
822
823 {
824 .vendor = PCI_VENDOR_ID_ENE,
825 .device = PCI_DEVICE_ID_ENE_CB714_SD_2,
826 .subvendor = PCI_ANY_ID,
827 .subdevice = PCI_ANY_ID,
828 .driver_data = (kernel_ulong_t)&sdhci_ene_714,
829 },
830
831 {
832 .vendor = PCI_VENDOR_ID_MARVELL,
833 .device = PCI_DEVICE_ID_MARVELL_88ALP01_SD,
834 .subvendor = PCI_ANY_ID,
835 .subdevice = PCI_ANY_ID,
836 .driver_data = (kernel_ulong_t)&sdhci_cafe,
837 },
838
839 {
840 .vendor = PCI_VENDOR_ID_JMICRON,
841 .device = PCI_DEVICE_ID_JMICRON_JMB38X_SD,
842 .subvendor = PCI_ANY_ID,
843 .subdevice = PCI_ANY_ID,
844 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
845 },
846
847 {
848 .vendor = PCI_VENDOR_ID_JMICRON,
849 .device = PCI_DEVICE_ID_JMICRON_JMB38X_MMC,
850 .subvendor = PCI_ANY_ID,
851 .subdevice = PCI_ANY_ID,
852 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
853 },
854
855 {
856 .vendor = PCI_VENDOR_ID_JMICRON,
857 .device = PCI_DEVICE_ID_JMICRON_JMB388_SD,
858 .subvendor = PCI_ANY_ID,
859 .subdevice = PCI_ANY_ID,
860 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
861 },
862
863 {
864 .vendor = PCI_VENDOR_ID_JMICRON,
865 .device = PCI_DEVICE_ID_JMICRON_JMB388_ESD,
866 .subvendor = PCI_ANY_ID,
867 .subdevice = PCI_ANY_ID,
868 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
869 },
870
871 {
872 .vendor = PCI_VENDOR_ID_SYSKONNECT,
873 .device = 0x8000,
874 .subvendor = PCI_ANY_ID,
875 .subdevice = PCI_ANY_ID,
876 .driver_data = (kernel_ulong_t)&sdhci_syskt,
877 },
878
879 {
880 .vendor = PCI_VENDOR_ID_VIA,
881 .device = 0x95d0,
882 .subvendor = PCI_ANY_ID,
883 .subdevice = PCI_ANY_ID,
884 .driver_data = (kernel_ulong_t)&sdhci_via,
885 },
886
887 {
888 .vendor = PCI_VENDOR_ID_REALTEK,
889 .device = 0x5250,
890 .subvendor = PCI_ANY_ID,
891 .subdevice = PCI_ANY_ID,
892 .driver_data = (kernel_ulong_t)&sdhci_rtsx,
893 },
894
895 {
896 .vendor = PCI_VENDOR_ID_INTEL,
897 .device = PCI_DEVICE_ID_INTEL_QRK_SD,
898 .subvendor = PCI_ANY_ID,
899 .subdevice = PCI_ANY_ID,
900 .driver_data = (kernel_ulong_t)&sdhci_intel_qrk,
901 },
902
903 {
904 .vendor = PCI_VENDOR_ID_INTEL,
905 .device = PCI_DEVICE_ID_INTEL_MRST_SD0,
906 .subvendor = PCI_ANY_ID,
907 .subdevice = PCI_ANY_ID,
908 .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc0,
909 },
910
911 {
912 .vendor = PCI_VENDOR_ID_INTEL,
913 .device = PCI_DEVICE_ID_INTEL_MRST_SD1,
914 .subvendor = PCI_ANY_ID,
915 .subdevice = PCI_ANY_ID,
916 .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2,
917 },
918
919 {
920 .vendor = PCI_VENDOR_ID_INTEL,
921 .device = PCI_DEVICE_ID_INTEL_MRST_SD2,
922 .subvendor = PCI_ANY_ID,
923 .subdevice = PCI_ANY_ID,
924 .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2,
925 },
926
927 {
928 .vendor = PCI_VENDOR_ID_INTEL,
929 .device = PCI_DEVICE_ID_INTEL_MFD_SD,
930 .subvendor = PCI_ANY_ID,
931 .subdevice = PCI_ANY_ID,
932 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd,
933 },
934
935 {
936 .vendor = PCI_VENDOR_ID_INTEL,
937 .device = PCI_DEVICE_ID_INTEL_MFD_SDIO1,
938 .subvendor = PCI_ANY_ID,
939 .subdevice = PCI_ANY_ID,
940 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
941 },
942
943 {
944 .vendor = PCI_VENDOR_ID_INTEL,
945 .device = PCI_DEVICE_ID_INTEL_MFD_SDIO2,
946 .subvendor = PCI_ANY_ID,
947 .subdevice = PCI_ANY_ID,
948 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
949 },
950
951 {
952 .vendor = PCI_VENDOR_ID_INTEL,
953 .device = PCI_DEVICE_ID_INTEL_MFD_EMMC0,
954 .subvendor = PCI_ANY_ID,
955 .subdevice = PCI_ANY_ID,
956 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
957 },
958
959 {
960 .vendor = PCI_VENDOR_ID_INTEL,
961 .device = PCI_DEVICE_ID_INTEL_MFD_EMMC1,
962 .subvendor = PCI_ANY_ID,
963 .subdevice = PCI_ANY_ID,
964 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
965 },
966
967 {
968 .vendor = PCI_VENDOR_ID_INTEL,
969 .device = PCI_DEVICE_ID_INTEL_PCH_SDIO0,
970 .subvendor = PCI_ANY_ID,
971 .subdevice = PCI_ANY_ID,
972 .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
973 },
974
975 {
976 .vendor = PCI_VENDOR_ID_INTEL,
977 .device = PCI_DEVICE_ID_INTEL_PCH_SDIO1,
978 .subvendor = PCI_ANY_ID,
979 .subdevice = PCI_ANY_ID,
980 .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
981 },
982
983 {
984 .vendor = PCI_VENDOR_ID_INTEL,
985 .device = PCI_DEVICE_ID_INTEL_BYT_EMMC,
986 .subvendor = PCI_ANY_ID,
987 .subdevice = PCI_ANY_ID,
988 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
989 },
990
991 {
992 .vendor = PCI_VENDOR_ID_INTEL,
993 .device = PCI_DEVICE_ID_INTEL_BYT_SDIO,
994 .subvendor = PCI_ANY_ID,
995 .subdevice = PCI_ANY_ID,
996 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
997 },
998
999 {
1000 .vendor = PCI_VENDOR_ID_INTEL,
1001 .device = PCI_DEVICE_ID_INTEL_BYT_SD,
1002 .subvendor = PCI_ANY_ID,
1003 .subdevice = PCI_ANY_ID,
1004 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1005 },
1006
1007 {
1008 .vendor = PCI_VENDOR_ID_INTEL,
1009 .device = PCI_DEVICE_ID_INTEL_BYT_EMMC2,
1010 .subvendor = PCI_ANY_ID,
1011 .subdevice = PCI_ANY_ID,
1012 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1013 },
1014
1015 {
1016 .vendor = PCI_VENDOR_ID_INTEL,
1017 .device = PCI_DEVICE_ID_INTEL_BSW_EMMC,
1018 .subvendor = PCI_ANY_ID,
1019 .subdevice = PCI_ANY_ID,
1020 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1021 },
1022
1023 {
1024 .vendor = PCI_VENDOR_ID_INTEL,
1025 .device = PCI_DEVICE_ID_INTEL_BSW_SDIO,
1026 .subvendor = PCI_ANY_ID,
1027 .subdevice = PCI_ANY_ID,
1028 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1029 },
1030
1031 {
1032 .vendor = PCI_VENDOR_ID_INTEL,
1033 .device = PCI_DEVICE_ID_INTEL_BSW_SD,
1034 .subvendor = PCI_ANY_ID,
1035 .subdevice = PCI_ANY_ID,
1036 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1037 },
1038
1039 {
1040 .vendor = PCI_VENDOR_ID_INTEL,
1041 .device = PCI_DEVICE_ID_INTEL_CLV_SDIO0,
1042 .subvendor = PCI_ANY_ID,
1043 .subdevice = PCI_ANY_ID,
1044 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd,
1045 },
1046
1047 {
1048 .vendor = PCI_VENDOR_ID_INTEL,
1049 .device = PCI_DEVICE_ID_INTEL_CLV_SDIO1,
1050 .subvendor = PCI_ANY_ID,
1051 .subdevice = PCI_ANY_ID,
1052 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
1053 },
1054
1055 {
1056 .vendor = PCI_VENDOR_ID_INTEL,
1057 .device = PCI_DEVICE_ID_INTEL_CLV_SDIO2,
1058 .subvendor = PCI_ANY_ID,
1059 .subdevice = PCI_ANY_ID,
1060 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
1061 },
1062
1063 {
1064 .vendor = PCI_VENDOR_ID_INTEL,
1065 .device = PCI_DEVICE_ID_INTEL_CLV_EMMC0,
1066 .subvendor = PCI_ANY_ID,
1067 .subdevice = PCI_ANY_ID,
1068 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
1069 },
1070
1071 {
1072 .vendor = PCI_VENDOR_ID_INTEL,
1073 .device = PCI_DEVICE_ID_INTEL_CLV_EMMC1,
1074 .subvendor = PCI_ANY_ID,
1075 .subdevice = PCI_ANY_ID,
1076 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
1077 },
1078
1079 {
1080 .vendor = PCI_VENDOR_ID_INTEL,
1081 .device = PCI_DEVICE_ID_INTEL_MRFL_MMC,
1082 .subvendor = PCI_ANY_ID,
1083 .subdevice = PCI_ANY_ID,
1084 .driver_data = (kernel_ulong_t)&sdhci_intel_mrfl_mmc,
1085 },
1086
1087 {
1088 .vendor = PCI_VENDOR_ID_INTEL,
1089 .device = PCI_DEVICE_ID_INTEL_SPT_EMMC,
1090 .subvendor = PCI_ANY_ID,
1091 .subdevice = PCI_ANY_ID,
1092 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1093 },
1094
1095 {
1096 .vendor = PCI_VENDOR_ID_INTEL,
1097 .device = PCI_DEVICE_ID_INTEL_SPT_SDIO,
1098 .subvendor = PCI_ANY_ID,
1099 .subdevice = PCI_ANY_ID,
1100 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1101 },
1102
1103 {
1104 .vendor = PCI_VENDOR_ID_INTEL,
1105 .device = PCI_DEVICE_ID_INTEL_SPT_SD,
1106 .subvendor = PCI_ANY_ID,
1107 .subdevice = PCI_ANY_ID,
1108 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1109 },
1110
1111 {
1112 .vendor = PCI_VENDOR_ID_INTEL,
1113 .device = PCI_DEVICE_ID_INTEL_DNV_EMMC,
1114 .subvendor = PCI_ANY_ID,
1115 .subdevice = PCI_ANY_ID,
1116 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1117 },
1118
1119 {
1120 .vendor = PCI_VENDOR_ID_INTEL,
1121 .device = PCI_DEVICE_ID_INTEL_BXT_EMMC,
1122 .subvendor = PCI_ANY_ID,
1123 .subdevice = PCI_ANY_ID,
1124 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1125 },
1126
1127 {
1128 .vendor = PCI_VENDOR_ID_INTEL,
1129 .device = PCI_DEVICE_ID_INTEL_BXT_SDIO,
1130 .subvendor = PCI_ANY_ID,
1131 .subdevice = PCI_ANY_ID,
1132 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1133 },
1134
1135 {
1136 .vendor = PCI_VENDOR_ID_INTEL,
1137 .device = PCI_DEVICE_ID_INTEL_BXT_SD,
1138 .subvendor = PCI_ANY_ID,
1139 .subdevice = PCI_ANY_ID,
1140 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1141 },
1142
1143 {
1144 .vendor = PCI_VENDOR_ID_INTEL,
1145 .device = PCI_DEVICE_ID_INTEL_APL_EMMC,
1146 .subvendor = PCI_ANY_ID,
1147 .subdevice = PCI_ANY_ID,
1148 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1149 },
1150
1151 {
1152 .vendor = PCI_VENDOR_ID_INTEL,
1153 .device = PCI_DEVICE_ID_INTEL_APL_SDIO,
1154 .subvendor = PCI_ANY_ID,
1155 .subdevice = PCI_ANY_ID,
1156 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1157 },
1158
1159 {
1160 .vendor = PCI_VENDOR_ID_INTEL,
1161 .device = PCI_DEVICE_ID_INTEL_APL_SD,
1162 .subvendor = PCI_ANY_ID,
1163 .subdevice = PCI_ANY_ID,
1164 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1165 },
1166
1167 {
1168 .vendor = PCI_VENDOR_ID_O2,
1169 .device = PCI_DEVICE_ID_O2_8120,
1170 .subvendor = PCI_ANY_ID,
1171 .subdevice = PCI_ANY_ID,
1172 .driver_data = (kernel_ulong_t)&sdhci_o2,
1173 },
1174
1175 {
1176 .vendor = PCI_VENDOR_ID_O2,
1177 .device = PCI_DEVICE_ID_O2_8220,
1178 .subvendor = PCI_ANY_ID,
1179 .subdevice = PCI_ANY_ID,
1180 .driver_data = (kernel_ulong_t)&sdhci_o2,
1181 },
1182
1183 {
1184 .vendor = PCI_VENDOR_ID_O2,
1185 .device = PCI_DEVICE_ID_O2_8221,
1186 .subvendor = PCI_ANY_ID,
1187 .subdevice = PCI_ANY_ID,
1188 .driver_data = (kernel_ulong_t)&sdhci_o2,
1189 },
1190
1191 {
1192 .vendor = PCI_VENDOR_ID_O2,
1193 .device = PCI_DEVICE_ID_O2_8320,
1194 .subvendor = PCI_ANY_ID,
1195 .subdevice = PCI_ANY_ID,
1196 .driver_data = (kernel_ulong_t)&sdhci_o2,
1197 },
1198
1199 {
1200 .vendor = PCI_VENDOR_ID_O2,
1201 .device = PCI_DEVICE_ID_O2_8321,
1202 .subvendor = PCI_ANY_ID,
1203 .subdevice = PCI_ANY_ID,
1204 .driver_data = (kernel_ulong_t)&sdhci_o2,
1205 },
1206
1207 {
1208 .vendor = PCI_VENDOR_ID_O2,
1209 .device = PCI_DEVICE_ID_O2_FUJIN2,
1210 .subvendor = PCI_ANY_ID,
1211 .subdevice = PCI_ANY_ID,
1212 .driver_data = (kernel_ulong_t)&sdhci_o2,
1213 },
1214
1215 {
1216 .vendor = PCI_VENDOR_ID_O2,
1217 .device = PCI_DEVICE_ID_O2_SDS0,
1218 .subvendor = PCI_ANY_ID,
1219 .subdevice = PCI_ANY_ID,
1220 .driver_data = (kernel_ulong_t)&sdhci_o2,
1221 },
1222
1223 {
1224 .vendor = PCI_VENDOR_ID_O2,
1225 .device = PCI_DEVICE_ID_O2_SDS1,
1226 .subvendor = PCI_ANY_ID,
1227 .subdevice = PCI_ANY_ID,
1228 .driver_data = (kernel_ulong_t)&sdhci_o2,
1229 },
1230
1231 {
1232 .vendor = PCI_VENDOR_ID_O2,
1233 .device = PCI_DEVICE_ID_O2_SEABIRD0,
1234 .subvendor = PCI_ANY_ID,
1235 .subdevice = PCI_ANY_ID,
1236 .driver_data = (kernel_ulong_t)&sdhci_o2,
1237 },
1238
1239 {
1240 .vendor = PCI_VENDOR_ID_O2,
1241 .device = PCI_DEVICE_ID_O2_SEABIRD1,
1242 .subvendor = PCI_ANY_ID,
1243 .subdevice = PCI_ANY_ID,
1244 .driver_data = (kernel_ulong_t)&sdhci_o2,
1245 },
1246 {
1247 .vendor = PCI_VENDOR_ID_AMD,
1248 .device = PCI_ANY_ID,
1249 .class = PCI_CLASS_SYSTEM_SDHCI << 8,
1250 .class_mask = 0xFFFF00,
1251 .subvendor = PCI_ANY_ID,
1252 .subdevice = PCI_ANY_ID,
1253 .driver_data = (kernel_ulong_t)&sdhci_amd,
1254 },
1255 {
1256 PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
1257 },
1258
1259 { },
1260};
1261
1262MODULE_DEVICE_TABLE(pci, pci_ids);
1263
1264
1265
1266
1267
1268
1269
1270static int sdhci_pci_enable_dma(struct sdhci_host *host)
1271{
1272 struct sdhci_pci_slot *slot;
1273 struct pci_dev *pdev;
1274 int ret = -1;
1275
1276 slot = sdhci_priv(host);
1277 pdev = slot->chip->pdev;
1278
1279 if (((pdev->class & 0xFFFF00) == (PCI_CLASS_SYSTEM_SDHCI << 8)) &&
1280 ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA) &&
1281 (host->flags & SDHCI_USE_SDMA)) {
1282 dev_warn(&pdev->dev, "Will use DMA mode even though HW "
1283 "doesn't fully claim to support it.\n");
1284 }
1285
1286 if (host->flags & SDHCI_USE_64_BIT_DMA) {
1287 if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA) {
1288 host->flags &= ~SDHCI_USE_64_BIT_DMA;
1289 } else {
1290 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1291 if (ret)
1292 dev_warn(&pdev->dev, "Failed to set 64-bit DMA mask\n");
1293 }
1294 }
1295 if (ret)
1296 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1297 if (ret)
1298 return ret;
1299
1300 pci_set_master(pdev);
1301
1302 return 0;
1303}
1304
1305static void sdhci_pci_set_bus_width(struct sdhci_host *host, int width)
1306{
1307 u8 ctrl;
1308
1309 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
1310
1311 switch (width) {
1312 case MMC_BUS_WIDTH_8:
1313 ctrl |= SDHCI_CTRL_8BITBUS;
1314 ctrl &= ~SDHCI_CTRL_4BITBUS;
1315 break;
1316 case MMC_BUS_WIDTH_4:
1317 ctrl |= SDHCI_CTRL_4BITBUS;
1318 ctrl &= ~SDHCI_CTRL_8BITBUS;
1319 break;
1320 default:
1321 ctrl &= ~(SDHCI_CTRL_8BITBUS | SDHCI_CTRL_4BITBUS);
1322 break;
1323 }
1324
1325 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
1326}
1327
1328static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host)
1329{
1330 struct sdhci_pci_slot *slot = sdhci_priv(host);
1331 int rst_n_gpio = slot->rst_n_gpio;
1332
1333 if (!gpio_is_valid(rst_n_gpio))
1334 return;
1335 gpio_set_value_cansleep(rst_n_gpio, 0);
1336
1337 udelay(10);
1338 gpio_set_value_cansleep(rst_n_gpio, 1);
1339
1340 usleep_range(300, 1000);
1341}
1342
1343static void sdhci_pci_hw_reset(struct sdhci_host *host)
1344{
1345 struct sdhci_pci_slot *slot = sdhci_priv(host);
1346
1347 if (slot->hw_reset)
1348 slot->hw_reset(host);
1349}
1350
1351static int sdhci_pci_select_drive_strength(struct sdhci_host *host,
1352 struct mmc_card *card,
1353 unsigned int max_dtr, int host_drv,
1354 int card_drv, int *drv_type)
1355{
1356 struct sdhci_pci_slot *slot = sdhci_priv(host);
1357
1358 if (!slot->select_drive_strength)
1359 return 0;
1360
1361 return slot->select_drive_strength(host, card, max_dtr, host_drv,
1362 card_drv, drv_type);
1363}
1364
1365static const struct sdhci_ops sdhci_pci_ops = {
1366 .set_clock = sdhci_set_clock,
1367 .enable_dma = sdhci_pci_enable_dma,
1368 .set_bus_width = sdhci_pci_set_bus_width,
1369 .reset = sdhci_reset,
1370 .set_uhs_signaling = sdhci_set_uhs_signaling,
1371 .hw_reset = sdhci_pci_hw_reset,
1372 .select_drive_strength = sdhci_pci_select_drive_strength,
1373};
1374
1375
1376
1377
1378
1379
1380
1381#ifdef CONFIG_PM
1382
1383static int sdhci_pci_suspend(struct device *dev)
1384{
1385 struct pci_dev *pdev = to_pci_dev(dev);
1386 struct sdhci_pci_chip *chip;
1387 struct sdhci_pci_slot *slot;
1388 mmc_pm_flag_t slot_pm_flags;
1389 mmc_pm_flag_t pm_flags = 0;
1390 int i, ret;
1391
1392 chip = pci_get_drvdata(pdev);
1393 if (!chip)
1394 return 0;
1395
1396 for (i = 0; i < chip->num_slots; i++) {
1397 slot = chip->slots[i];
1398 if (!slot)
1399 continue;
1400
1401 ret = sdhci_suspend_host(slot->host);
1402
1403 if (ret)
1404 goto err_pci_suspend;
1405
1406 slot_pm_flags = slot->host->mmc->pm_flags;
1407 if (slot_pm_flags & MMC_PM_WAKE_SDIO_IRQ)
1408 sdhci_enable_irq_wakeups(slot->host);
1409
1410 pm_flags |= slot_pm_flags;
1411 }
1412
1413 if (chip->fixes && chip->fixes->suspend) {
1414 ret = chip->fixes->suspend(chip);
1415 if (ret)
1416 goto err_pci_suspend;
1417 }
1418
1419 if (pm_flags & MMC_PM_KEEP_POWER) {
1420 if (pm_flags & MMC_PM_WAKE_SDIO_IRQ)
1421 device_init_wakeup(dev, true);
1422 else
1423 device_init_wakeup(dev, false);
1424 } else
1425 device_init_wakeup(dev, false);
1426
1427 return 0;
1428
1429err_pci_suspend:
1430 while (--i >= 0)
1431 sdhci_resume_host(chip->slots[i]->host);
1432 return ret;
1433}
1434
1435static int sdhci_pci_resume(struct device *dev)
1436{
1437 struct pci_dev *pdev = to_pci_dev(dev);
1438 struct sdhci_pci_chip *chip;
1439 struct sdhci_pci_slot *slot;
1440 int i, ret;
1441
1442 chip = pci_get_drvdata(pdev);
1443 if (!chip)
1444 return 0;
1445
1446 if (chip->fixes && chip->fixes->resume) {
1447 ret = chip->fixes->resume(chip);
1448 if (ret)
1449 return ret;
1450 }
1451
1452 for (i = 0; i < chip->num_slots; i++) {
1453 slot = chip->slots[i];
1454 if (!slot)
1455 continue;
1456
1457 ret = sdhci_resume_host(slot->host);
1458 if (ret)
1459 return ret;
1460 }
1461
1462 return 0;
1463}
1464
1465static int sdhci_pci_runtime_suspend(struct device *dev)
1466{
1467 struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
1468 struct sdhci_pci_chip *chip;
1469 struct sdhci_pci_slot *slot;
1470 int i, ret;
1471
1472 chip = pci_get_drvdata(pdev);
1473 if (!chip)
1474 return 0;
1475
1476 for (i = 0; i < chip->num_slots; i++) {
1477 slot = chip->slots[i];
1478 if (!slot)
1479 continue;
1480
1481 ret = sdhci_runtime_suspend_host(slot->host);
1482
1483 if (ret)
1484 goto err_pci_runtime_suspend;
1485 }
1486
1487 if (chip->fixes && chip->fixes->suspend) {
1488 ret = chip->fixes->suspend(chip);
1489 if (ret)
1490 goto err_pci_runtime_suspend;
1491 }
1492
1493 return 0;
1494
1495err_pci_runtime_suspend:
1496 while (--i >= 0)
1497 sdhci_runtime_resume_host(chip->slots[i]->host);
1498 return ret;
1499}
1500
1501static int sdhci_pci_runtime_resume(struct device *dev)
1502{
1503 struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
1504 struct sdhci_pci_chip *chip;
1505 struct sdhci_pci_slot *slot;
1506 int i, ret;
1507
1508 chip = pci_get_drvdata(pdev);
1509 if (!chip)
1510 return 0;
1511
1512 if (chip->fixes && chip->fixes->resume) {
1513 ret = chip->fixes->resume(chip);
1514 if (ret)
1515 return ret;
1516 }
1517
1518 for (i = 0; i < chip->num_slots; i++) {
1519 slot = chip->slots[i];
1520 if (!slot)
1521 continue;
1522
1523 ret = sdhci_runtime_resume_host(slot->host);
1524 if (ret)
1525 return ret;
1526 }
1527
1528 return 0;
1529}
1530
1531#else
1532
1533#define sdhci_pci_suspend NULL
1534#define sdhci_pci_resume NULL
1535
1536#endif
1537
1538static const struct dev_pm_ops sdhci_pci_pm_ops = {
1539 .suspend = sdhci_pci_suspend,
1540 .resume = sdhci_pci_resume,
1541 SET_RUNTIME_PM_OPS(sdhci_pci_runtime_suspend,
1542 sdhci_pci_runtime_resume, NULL)
1543};
1544
1545
1546
1547
1548
1549
1550
1551static struct sdhci_pci_slot *sdhci_pci_probe_slot(
1552 struct pci_dev *pdev, struct sdhci_pci_chip *chip, int first_bar,
1553 int slotno)
1554{
1555 struct sdhci_pci_slot *slot;
1556 struct sdhci_host *host;
1557 int ret, bar = first_bar + slotno;
1558
1559 if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
1560 dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar);
1561 return ERR_PTR(-ENODEV);
1562 }
1563
1564 if (pci_resource_len(pdev, bar) < 0x100) {
1565 dev_err(&pdev->dev, "Invalid iomem size. You may "
1566 "experience problems.\n");
1567 }
1568
1569 if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
1570 dev_err(&pdev->dev, "Vendor specific interface. Aborting.\n");
1571 return ERR_PTR(-ENODEV);
1572 }
1573
1574 if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) {
1575 dev_err(&pdev->dev, "Unknown interface. Aborting.\n");
1576 return ERR_PTR(-ENODEV);
1577 }
1578
1579 host = sdhci_alloc_host(&pdev->dev, sizeof(struct sdhci_pci_slot));
1580 if (IS_ERR(host)) {
1581 dev_err(&pdev->dev, "cannot allocate host\n");
1582 return ERR_CAST(host);
1583 }
1584
1585 slot = sdhci_priv(host);
1586
1587 slot->chip = chip;
1588 slot->host = host;
1589 slot->pci_bar = bar;
1590 slot->rst_n_gpio = -EINVAL;
1591 slot->cd_gpio = -EINVAL;
1592 slot->cd_idx = -1;
1593
1594
1595 if (*sdhci_pci_get_data)
1596 slot->data = sdhci_pci_get_data(pdev, slotno);
1597
1598 if (slot->data) {
1599 if (slot->data->setup) {
1600 ret = slot->data->setup(slot->data);
1601 if (ret) {
1602 dev_err(&pdev->dev, "platform setup failed\n");
1603 goto free;
1604 }
1605 }
1606 slot->rst_n_gpio = slot->data->rst_n_gpio;
1607 slot->cd_gpio = slot->data->cd_gpio;
1608 }
1609
1610 host->hw_name = "PCI";
1611 host->ops = &sdhci_pci_ops;
1612 host->quirks = chip->quirks;
1613 host->quirks2 = chip->quirks2;
1614
1615 host->irq = pdev->irq;
1616
1617 ret = pci_request_region(pdev, bar, mmc_hostname(host->mmc));
1618 if (ret) {
1619 dev_err(&pdev->dev, "cannot request region\n");
1620 goto cleanup;
1621 }
1622
1623 host->ioaddr = pci_ioremap_bar(pdev, bar);
1624 if (!host->ioaddr) {
1625 dev_err(&pdev->dev, "failed to remap registers\n");
1626 ret = -ENOMEM;
1627 goto release;
1628 }
1629
1630 if (chip->fixes && chip->fixes->probe_slot) {
1631 ret = chip->fixes->probe_slot(slot);
1632 if (ret)
1633 goto unmap;
1634 }
1635
1636 if (gpio_is_valid(slot->rst_n_gpio)) {
1637 if (!gpio_request(slot->rst_n_gpio, "eMMC_reset")) {
1638 gpio_direction_output(slot->rst_n_gpio, 1);
1639 slot->host->mmc->caps |= MMC_CAP_HW_RESET;
1640 slot->hw_reset = sdhci_pci_gpio_hw_reset;
1641 } else {
1642 dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
1643 slot->rst_n_gpio = -EINVAL;
1644 }
1645 }
1646
1647 host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ;
1648 host->mmc->slotno = slotno;
1649 host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
1650
1651 if (slot->cd_idx >= 0 &&
1652 mmc_gpiod_request_cd(host->mmc, slot->cd_con_id, slot->cd_idx,
1653 slot->cd_override_level, 0, NULL)) {
1654 dev_warn(&pdev->dev, "failed to setup card detect gpio\n");
1655 slot->cd_idx = -1;
1656 }
1657
1658 ret = sdhci_add_host(host);
1659 if (ret)
1660 goto remove;
1661
1662 sdhci_pci_add_own_cd(slot);
1663
1664
1665
1666
1667
1668
1669 if (chip->fixes && chip->fixes->own_cd_for_runtime_pm &&
1670 !gpio_is_valid(slot->cd_gpio) && slot->cd_idx < 0)
1671 chip->allow_runtime_pm = false;
1672
1673 return slot;
1674
1675remove:
1676 if (gpio_is_valid(slot->rst_n_gpio))
1677 gpio_free(slot->rst_n_gpio);
1678
1679 if (chip->fixes && chip->fixes->remove_slot)
1680 chip->fixes->remove_slot(slot, 0);
1681
1682unmap:
1683 iounmap(host->ioaddr);
1684
1685release:
1686 pci_release_region(pdev, bar);
1687
1688cleanup:
1689 if (slot->data && slot->data->cleanup)
1690 slot->data->cleanup(slot->data);
1691
1692free:
1693 sdhci_free_host(host);
1694
1695 return ERR_PTR(ret);
1696}
1697
1698static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
1699{
1700 int dead;
1701 u32 scratch;
1702
1703 sdhci_pci_remove_own_cd(slot);
1704
1705 dead = 0;
1706 scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS);
1707 if (scratch == (u32)-1)
1708 dead = 1;
1709
1710 sdhci_remove_host(slot->host, dead);
1711
1712 if (gpio_is_valid(slot->rst_n_gpio))
1713 gpio_free(slot->rst_n_gpio);
1714
1715 if (slot->chip->fixes && slot->chip->fixes->remove_slot)
1716 slot->chip->fixes->remove_slot(slot, dead);
1717
1718 if (slot->data && slot->data->cleanup)
1719 slot->data->cleanup(slot->data);
1720
1721 pci_release_region(slot->chip->pdev, slot->pci_bar);
1722
1723 sdhci_free_host(slot->host);
1724}
1725
1726static void sdhci_pci_runtime_pm_allow(struct device *dev)
1727{
1728 pm_runtime_put_noidle(dev);
1729 pm_runtime_allow(dev);
1730 pm_runtime_set_autosuspend_delay(dev, 50);
1731 pm_runtime_use_autosuspend(dev);
1732 pm_suspend_ignore_children(dev, 1);
1733}
1734
1735static void sdhci_pci_runtime_pm_forbid(struct device *dev)
1736{
1737 pm_runtime_forbid(dev);
1738 pm_runtime_get_noresume(dev);
1739}
1740
1741static int sdhci_pci_probe(struct pci_dev *pdev,
1742 const struct pci_device_id *ent)
1743{
1744 struct sdhci_pci_chip *chip;
1745 struct sdhci_pci_slot *slot;
1746
1747 u8 slots, first_bar;
1748 int ret, i;
1749
1750 BUG_ON(pdev == NULL);
1751 BUG_ON(ent == NULL);
1752
1753 dev_info(&pdev->dev, "SDHCI controller found [%04x:%04x] (rev %x)\n",
1754 (int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
1755
1756 ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
1757 if (ret)
1758 return ret;
1759
1760 slots = PCI_SLOT_INFO_SLOTS(slots) + 1;
1761 dev_dbg(&pdev->dev, "found %d slot(s)\n", slots);
1762 if (slots == 0)
1763 return -ENODEV;
1764
1765 BUG_ON(slots > MAX_SLOTS);
1766
1767 ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar);
1768 if (ret)
1769 return ret;
1770
1771 first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;
1772
1773 if (first_bar > 5) {
1774 dev_err(&pdev->dev, "Invalid first BAR. Aborting.\n");
1775 return -ENODEV;
1776 }
1777
1778 ret = pci_enable_device(pdev);
1779 if (ret)
1780 return ret;
1781
1782 chip = kzalloc(sizeof(struct sdhci_pci_chip), GFP_KERNEL);
1783 if (!chip) {
1784 ret = -ENOMEM;
1785 goto err;
1786 }
1787
1788 chip->pdev = pdev;
1789 chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data;
1790 if (chip->fixes) {
1791 chip->quirks = chip->fixes->quirks;
1792 chip->quirks2 = chip->fixes->quirks2;
1793 chip->allow_runtime_pm = chip->fixes->allow_runtime_pm;
1794 }
1795 chip->num_slots = slots;
1796
1797 pci_set_drvdata(pdev, chip);
1798
1799 if (chip->fixes && chip->fixes->probe) {
1800 ret = chip->fixes->probe(chip);
1801 if (ret)
1802 goto free;
1803 }
1804
1805 slots = chip->num_slots;
1806
1807 for (i = 0; i < slots; i++) {
1808 slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i);
1809 if (IS_ERR(slot)) {
1810 for (i--; i >= 0; i--)
1811 sdhci_pci_remove_slot(chip->slots[i]);
1812 ret = PTR_ERR(slot);
1813 goto free;
1814 }
1815
1816 chip->slots[i] = slot;
1817 }
1818
1819 if (chip->allow_runtime_pm)
1820 sdhci_pci_runtime_pm_allow(&pdev->dev);
1821
1822 return 0;
1823
1824free:
1825 pci_set_drvdata(pdev, NULL);
1826 kfree(chip);
1827
1828err:
1829 pci_disable_device(pdev);
1830 return ret;
1831}
1832
1833static void sdhci_pci_remove(struct pci_dev *pdev)
1834{
1835 int i;
1836 struct sdhci_pci_chip *chip;
1837
1838 chip = pci_get_drvdata(pdev);
1839
1840 if (chip) {
1841 if (chip->allow_runtime_pm)
1842 sdhci_pci_runtime_pm_forbid(&pdev->dev);
1843
1844 for (i = 0; i < chip->num_slots; i++)
1845 sdhci_pci_remove_slot(chip->slots[i]);
1846
1847 pci_set_drvdata(pdev, NULL);
1848 kfree(chip);
1849 }
1850
1851 pci_disable_device(pdev);
1852}
1853
1854static struct pci_driver sdhci_driver = {
1855 .name = "sdhci-pci",
1856 .id_table = pci_ids,
1857 .probe = sdhci_pci_probe,
1858 .remove = sdhci_pci_remove,
1859 .driver = {
1860 .pm = &sdhci_pci_pm_ops
1861 },
1862};
1863
1864module_pci_driver(sdhci_driver);
1865
1866MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
1867MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver");
1868MODULE_LICENSE("GPL");
1869
