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[karo-tx-linux.git] / drivers / mmc / host / sdhci-pci-core.c
1 /*  linux/drivers/mmc/host/sdhci-pci.c - SDHCI on PCI bus interface
2  *
3  *  Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or (at
8  * your option) any later version.
9  *
10  * Thanks to the following companies for their support:
11  *
12  *     - JMicron (hardware and technical support)
13  */
14
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  * Hardware specific quirk handling                                          *
38  *                                                                           *
39 \*****************************************************************************/
40
41 static 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
49 static 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
65 static int ricoh_mmc_resume(struct sdhci_pci_chip *chip)
66 {
67         /* Apply a delay to allow controller to settle */
68         /* Otherwise it becomes confused if card state changed
69                 during suspend */
70         msleep(500);
71         return 0;
72 }
73
74 static 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
81 static 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
90 static const struct sdhci_pci_fixes sdhci_ene_712 = {
91         .quirks         = SDHCI_QUIRK_SINGLE_POWER_WRITE |
92                           SDHCI_QUIRK_BROKEN_DMA,
93 };
94
95 static 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
101 static 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
108 static const struct sdhci_pci_fixes sdhci_intel_qrk = {
109         .quirks         = SDHCI_QUIRK_NO_HISPD_BIT,
110 };
111
112 static 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  * ADMA operation is disabled for Moorestown platform due to
120  * hardware bugs.
121  */
122 static int mrst_hc_probe(struct sdhci_pci_chip *chip)
123 {
124         /*
125          * slots number is fixed here for MRST as SDIO3/5 are never used and
126          * have hardware bugs.
127          */
128         chip->num_slots = 1;
129         return 0;
130 }
131
132 static 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
140 static 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
149 static 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
181 out_free:
182         gpio_free(gpio);
183 out:
184         dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
185 }
186
187 static 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
197 static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
198 {
199 }
200
201 static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
202 {
203 }
204
205 #endif
206
207 static 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
215 static 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
221 static 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
226 static 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
231 static 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
237 static 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
244 static 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
250 static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
251         .quirks         = SDHCI_QUIRK_BROKEN_ADMA,
252         .probe_slot     = pch_hc_probe_slot,
253 };
254
255 static 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         /* For eMMC, minimum is 1us but give it 9us for good measure */
263         udelay(9);
264         reg &= ~0x10;
265         sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
266         /* For eMMC, minimum is 200us but give it 300us for good measure */
267         usleep_range(300, 1000);
268 }
269
270 static 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; /* 33-ohm */
281
282         if ((mmc_driver_type_mask(drive_strength) & card_drv) == 0)
283                 drive_strength = 0; /* Default 50-ohm */
284
285         return drive_strength;
286 }
287
288 /* Try to read the drive strength from the card */
289 static 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
333 static 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; /* 1000 kHz i.e. 1 MHz */
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
350 static 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
358 static 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
368 static 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
377 static 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
385 static 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 /* Define Host controllers for Intel Merrifield platform */
396 #define INTEL_MRFL_EMMC_0       0
397 #define INTEL_MRFL_EMMC_1       1
398
399 static 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                 /* SD support is not ready yet */
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
412 static 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 /* O2Micro extra registers */
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
429 static 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          * Turn PMOS on [bit 0], set over current detection to 2.4 V
440          * [bit 1:2] and enable over current debouncing [bit 6].
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
450 static 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          * JMicron chips can have two interfaces to the same hardware
465          * in order to work around limitations in Microsoft's driver.
466          * We need to make sure we only bind to one of them.
467          *
468          * This code assumes two things:
469          *
470          * 1. The PCI code adds subfunctions in order.
471          *
472          * 2. The MMC interface has a lower subfunction number
473          *    than the SD interface.
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          * JMicron chips need a bit of a nudge to enable the power
502          * output pins.
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         /* quirk for unsable RO-detection on JM388 chips */
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
518 static 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
532 static 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                  * Older versions of the chip have lots of nasty glitches
543                  * in the ADMA engine. It's best just to avoid it
544                  * completely.
545                  */
546                 if (version < 0xAC)
547                         slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
548         }
549
550         /* JM388 MMC doesn't support 1.8V while SD supports it */
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; /* allow 1.8V */
555                 slot->host->ocr_avail_mmc = MMC_VDD_32_33 | MMC_VDD_33_34 |
556                         MMC_VDD_29_30 | MMC_VDD_30_31; /* no 1.8V for MMC */
557         }
558
559         /*
560          * The secondary interface requires a bit set to get the
561          * interrupts.
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
572 static 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
582 static 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
595 static 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
614 static 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
622 static 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 /* SysKonnect CardBus2SDIO extra registers */
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
651 static 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
660 static 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;  /* Wait max 1 ms */
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
693 static 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
699 static 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
707 static const struct sdhci_pci_fixes sdhci_via = {
708         .probe          = via_probe,
709 };
710
711 static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
712 {
713         slot->host->mmc->caps2 |= MMC_CAP2_HS200;
714         return 0;
715 }
716
717 static 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 /*AMD chipset generation*/
725 enum amd_chipset_gen {
726         AMD_CHIPSET_BEFORE_ML,
727         AMD_CHIPSET_CZ,
728         AMD_CHIPSET_NL,
729         AMD_CHIPSET_UNKNOWN,
730 };
731
732 static 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
762 static const struct sdhci_pci_fixes sdhci_amd = {
763         .probe          = amd_probe,
764 };
765
766 static 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         {       /* Generic SD host controller */
1256                 PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
1257         },
1258
1259         { /* end: all zeroes */ },
1260 };
1261
1262 MODULE_DEVICE_TABLE(pci, pci_ids);
1263
1264 /*****************************************************************************\
1265  *                                                                           *
1266  * SDHCI core callbacks                                                      *
1267  *                                                                           *
1268 \*****************************************************************************/
1269
1270 static 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
1305 static 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
1328 static 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         /* For eMMC, minimum is 1us but give it 10us for good measure */
1337         udelay(10);
1338         gpio_set_value_cansleep(rst_n_gpio, 1);
1339         /* For eMMC, minimum is 200us but give it 300us for good measure */
1340         usleep_range(300, 1000);
1341 }
1342
1343 static 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
1351 static 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
1365 static 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  * Suspend/resume                                                            *
1378  *                                                                           *
1379 \*****************************************************************************/
1380
1381 #ifdef CONFIG_PM
1382
1383 static 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
1429 err_pci_suspend:
1430         while (--i >= 0)
1431                 sdhci_resume_host(chip->slots[i]->host);
1432         return ret;
1433 }
1434
1435 static 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
1465 static 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
1495 err_pci_runtime_suspend:
1496         while (--i >= 0)
1497                 sdhci_runtime_resume_host(chip->slots[i]->host);
1498         return ret;
1499 }
1500
1501 static 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 /* CONFIG_PM */
1532
1533 #define sdhci_pci_suspend NULL
1534 #define sdhci_pci_resume NULL
1535
1536 #endif /* CONFIG_PM */
1537
1538 static 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  * Device probing/removal                                                    *
1548  *                                                                           *
1549 \*****************************************************************************/
1550
1551 static 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         /* Retrieve platform data if there is any */
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          * Check if the chip needs a separate GPIO for card detect to wake up
1666          * from runtime suspend.  If it is not there, don't allow runtime PM.
1667          * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure.
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
1675 remove:
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
1682 unmap:
1683         iounmap(host->ioaddr);
1684
1685 release:
1686         pci_release_region(pdev, bar);
1687
1688 cleanup:
1689         if (slot->data && slot->data->cleanup)
1690                 slot->data->cleanup(slot->data);
1691
1692 free:
1693         sdhci_free_host(host);
1694
1695         return ERR_PTR(ret);
1696 }
1697
1698 static 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
1726 static 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
1735 static void sdhci_pci_runtime_pm_forbid(struct device *dev)
1736 {
1737         pm_runtime_forbid(dev);
1738         pm_runtime_get_noresume(dev);
1739 }
1740
1741 static 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;        /* Quirk may have changed this */
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
1824 free:
1825         pci_set_drvdata(pdev, NULL);
1826         kfree(chip);
1827
1828 err:
1829         pci_disable_device(pdev);
1830         return ret;
1831 }
1832
1833 static 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
1854 static 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
1864 module_pci_driver(sdhci_driver);
1865
1866 MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
1867 MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver");
1868 MODULE_LICENSE("GPL");