1 /* linux/drivers/mmc/host/sdhci-pci.c - SDHCI on PCI bus interface
3 * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
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.
10 * Thanks to the following companies for their support:
12 * - JMicron (hardware and technical support)
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>
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>
32 #include "sdhci-pci.h"
33 #include "sdhci-pci-o2micro.h"
35 /*****************************************************************************\
37 * Hardware specific quirk handling *
39 \*****************************************************************************/
41 static int ricoh_probe(struct sdhci_pci_chip
*chip
)
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
;
49 static int ricoh_mmc_probe_slot(struct sdhci_pci_slot
*slot
)
52 ((0x21 << SDHCI_TIMEOUT_CLK_SHIFT
)
53 & SDHCI_TIMEOUT_CLK_MASK
) |
55 ((0x21 << SDHCI_CLOCK_BASE_SHIFT
)
56 & SDHCI_CLOCK_BASE_MASK
) |
58 SDHCI_TIMEOUT_CLK_UNIT
|
65 static int ricoh_mmc_resume(struct sdhci_pci_chip
*chip
)
67 /* Apply a delay to allow controller to settle */
68 /* Otherwise it becomes confused if card state changed
74 static const struct sdhci_pci_fixes sdhci_ricoh
= {
76 .quirks
= SDHCI_QUIRK_32BIT_DMA_ADDR
|
77 SDHCI_QUIRK_FORCE_DMA
|
78 SDHCI_QUIRK_CLOCK_BEFORE_RESET
,
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
90 static const struct sdhci_pci_fixes sdhci_ene_712
= {
91 .quirks
= SDHCI_QUIRK_SINGLE_POWER_WRITE
|
92 SDHCI_QUIRK_BROKEN_DMA
,
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
,
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
,
108 static const struct sdhci_pci_fixes sdhci_intel_qrk
= {
109 .quirks
= SDHCI_QUIRK_NO_HISPD_BIT
,
112 static int mrst_hc_probe_slot(struct sdhci_pci_slot
*slot
)
114 slot
->host
->mmc
->caps
|= MMC_CAP_8_BIT_DATA
;
119 * ADMA operation is disabled for Moorestown platform due to
122 static int mrst_hc_probe(struct sdhci_pci_chip
*chip
)
125 * slots number is fixed here for MRST as SDIO3/5 are never used and
126 * have hardware bugs.
132 static int pch_hc_probe_slot(struct sdhci_pci_slot
*slot
)
134 slot
->host
->mmc
->caps
|= MMC_CAP_8_BIT_DATA
;
140 static irqreturn_t
sdhci_pci_sd_cd(int irq
, void *dev_id
)
142 struct sdhci_pci_slot
*slot
= dev_id
;
143 struct sdhci_host
*host
= slot
->host
;
145 mmc_detect_change(host
->mmc
, msecs_to_jiffies(200));
149 static void sdhci_pci_add_own_cd(struct sdhci_pci_slot
*slot
)
151 int err
, irq
, gpio
= slot
->cd_gpio
;
153 slot
->cd_gpio
= -EINVAL
;
154 slot
->cd_irq
= -EINVAL
;
156 if (!gpio_is_valid(gpio
))
159 err
= gpio_request(gpio
, "sd_cd");
163 err
= gpio_direction_input(gpio
);
167 irq
= gpio_to_irq(gpio
);
171 err
= request_irq(irq
, sdhci_pci_sd_cd
, IRQF_TRIGGER_RISING
|
172 IRQF_TRIGGER_FALLING
, "sd_cd", slot
);
176 slot
->cd_gpio
= gpio
;
184 dev_warn(&slot
->chip
->pdev
->dev
, "failed to setup card detect wake up\n");
187 static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot
*slot
)
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
);
197 static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot
*slot
)
201 static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot
*slot
)
207 static int mfd_emmc_probe_slot(struct sdhci_pci_slot
*slot
)
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
;
215 static int mfd_sdio_probe_slot(struct sdhci_pci_slot
*slot
)
217 slot
->host
->mmc
->caps
|= MMC_CAP_POWER_OFF_CARD
| MMC_CAP_NONREMOVABLE
;
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
,
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
,
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,
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
,
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
,
250 static const struct sdhci_pci_fixes sdhci_intel_pch_sdio
= {
251 .quirks
= SDHCI_QUIRK_BROKEN_ADMA
,
252 .probe_slot
= pch_hc_probe_slot
,
255 static void sdhci_pci_int_hw_reset(struct sdhci_host
*host
)
259 reg
= sdhci_readb(host
, SDHCI_POWER_CONTROL
);
261 sdhci_writeb(host
, reg
, SDHCI_POWER_CONTROL
);
262 /* For eMMC, minimum is 1us but give it 9us for good measure */
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);
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
)
277 if (sdhci_pci_spt_drive_strength
> 0)
278 drive_strength
= sdhci_pci_spt_drive_strength
& 0xf;
280 drive_strength
= 1; /* 33-ohm */
282 if ((mmc_driver_type_mask(drive_strength
) & card_drv
) == 0)
283 drive_strength
= 0; /* Default 50-ohm */
285 return drive_strength
;
288 /* Try to read the drive strength from the card */
289 static void spt_read_drive_strength(struct sdhci_host
*host
)
294 if (sdhci_pci_spt_drive_strength
)
297 sdhci_pci_spt_drive_strength
= -1;
299 m
= sdhci_readw(host
, SDHCI_HOST_CONTROL2
) & 0x7;
300 if (m
!= 3 && m
!= 5)
302 val
= sdhci_readl(host
, SDHCI_PRESENT_STATE
);
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)
321 val
= sdhci_readl(host
, SDHCI_PRESENT_STATE
);
324 for (i
= 0; i
< 47; i
++)
325 val
= sdhci_readl(host
, SDHCI_BUFFER
);
327 if (t
!= 0x200 && t
!= 0x300)
330 sdhci_pci_spt_drive_strength
= 0x10 | ((val
>> 12) & 0xf);
333 static int byt_emmc_probe_slot(struct sdhci_pci_slot
*slot
)
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
;
350 static int byt_sdio_probe_slot(struct sdhci_pci_slot
*slot
)
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
;
358 static int byt_sd_probe_slot(struct sdhci_pci_slot
*slot
)
360 slot
->host
->mmc
->caps
|= MMC_CAP_BUS_WIDTH_TEST
|
361 MMC_CAP_WAIT_WHILE_BUSY
;
362 slot
->cd_con_id
= NULL
;
364 slot
->cd_override_level
= true;
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
,
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
,
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
,
395 /* Define Host controllers for Intel Merrifield platform */
396 #define INTEL_MRFL_EMMC_0 0
397 #define INTEL_MRFL_EMMC_1 1
399 static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot
*slot
)
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 */
406 slot
->host
->mmc
->caps
|= MMC_CAP_8_BIT_DATA
| MMC_CAP_NONREMOVABLE
|
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
,
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
429 static int jmicron_pmos(struct sdhci_pci_chip
*chip
, int on
)
434 ret
= pci_read_config_byte(chip
->pdev
, 0xAE, &scratch
);
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].
447 return pci_write_config_byte(chip
->pdev
, 0xAE, scratch
);
450 static int jmicron_probe(struct sdhci_pci_chip
*chip
)
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
;
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.
468 * This code assumes two things:
470 * 1. The PCI code adds subfunctions in order.
472 * 2. The MMC interface has a lower subfunction number
473 * than the SD interface.
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
;
481 struct pci_dev
*sd_dev
;
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
))
494 dev_info(&chip
->pdev
->dev
, "Refusing to bind to "
495 "secondary interface.\n");
501 * JMicron chips need a bit of a nudge to enable the power
504 ret
= jmicron_pmos(chip
, 1);
506 dev_err(&chip
->pdev
->dev
, "Failure enabling card power\n");
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
;
518 static void jmicron_enable_mmc(struct sdhci_host
*host
, int on
)
522 scratch
= readb(host
->ioaddr
+ 0xC0);
529 writeb(scratch
, host
->ioaddr
+ 0xC0);
532 static int jmicron_probe_slot(struct sdhci_pci_slot
*slot
)
534 if (slot
->chip
->pdev
->revision
== 0) {
537 version
= readl(slot
->host
->ioaddr
+ SDHCI_HOST_VERSION
);
538 version
= (version
& SDHCI_VENDOR_VER_MASK
) >>
539 SDHCI_VENDOR_VER_SHIFT
;
542 * Older versions of the chip have lots of nasty glitches
543 * in the ADMA engine. It's best just to avoid it
547 slot
->host
->quirks
|= SDHCI_QUIRK_BROKEN_ADMA
;
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 */
560 * The secondary interface requires a bit set to get the
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);
567 slot
->host
->mmc
->caps
|= MMC_CAP_BUS_WIDTH_TEST
;
572 static void jmicron_remove_slot(struct sdhci_pci_slot
*slot
, int dead
)
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);
582 static int jmicron_suspend(struct sdhci_pci_chip
*chip
)
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);
595 static int jmicron_resume(struct sdhci_pci_chip
*chip
)
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);
605 ret
= jmicron_pmos(chip
, 1);
607 dev_err(&chip
->pdev
->dev
, "Failure enabling card power\n");
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
,
622 static const struct sdhci_pci_fixes sdhci_jmicron
= {
623 .probe
= jmicron_probe
,
625 .probe_slot
= jmicron_probe_slot
,
626 .remove_slot
= jmicron_remove_slot
,
628 .suspend
= jmicron_suspend
,
629 .resume
= jmicron_resume
,
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)
651 static int syskt_probe(struct sdhci_pci_chip
*chip
)
653 if ((chip
->pdev
->class & 0x0000FF) == PCI_SDHCI_IFVENDOR
) {
654 chip
->pdev
->class &= ~0x0000FF;
655 chip
->pdev
->class |= PCI_SDHCI_IFDMA
;
660 static int syskt_probe_slot(struct sdhci_pci_slot
*slot
)
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
;
673 writeb(SYSKT_POWER_330
, slot
->host
->ioaddr
+ SYSKT_POWER_DATA
);
674 writeb(SYSKT_POWER_START
, slot
->host
->ioaddr
+ SYSKT_POWER_CMD
);
676 tm
= 10; /* Wait max 1 ms */
678 ps
= readw(slot
->host
->ioaddr
+ SYSKT_POWER_STATUS
);
679 if (ps
& SYSKT_POWER_STATUS_OK
)
684 dev_err(&slot
->chip
->pdev
->dev
,
685 "power regulator never stabilized");
686 writeb(0, slot
->host
->ioaddr
+ SYSKT_POWER_CMD
);
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
,
699 static int via_probe(struct sdhci_pci_chip
*chip
)
701 if (chip
->pdev
->revision
== 0x10)
702 chip
->quirks
|= SDHCI_QUIRK_DELAY_AFTER_POWER
;
707 static const struct sdhci_pci_fixes sdhci_via
= {
711 static int rtsx_probe_slot(struct sdhci_pci_slot
*slot
)
713 slot
->host
->mmc
->caps2
|= MMC_CAP2_HS200
;
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
,
724 /*AMD chipset generation*/
725 enum amd_chipset_gen
{
726 AMD_CHIPSET_BEFORE_ML
,
732 static int amd_probe(struct sdhci_pci_chip
*chip
)
734 struct pci_dev
*smbus_dev
;
735 enum amd_chipset_gen gen
;
737 smbus_dev
= pci_get_device(PCI_VENDOR_ID_AMD
,
738 PCI_DEVICE_ID_AMD_HUDSON2_SMBUS
, NULL
);
740 gen
= AMD_CHIPSET_BEFORE_ML
;
742 smbus_dev
= pci_get_device(PCI_VENDOR_ID_AMD
,
743 PCI_DEVICE_ID_AMD_KERNCZ_SMBUS
, NULL
);
745 if (smbus_dev
->revision
< 0x51)
746 gen
= AMD_CHIPSET_CZ
;
748 gen
= AMD_CHIPSET_NL
;
750 gen
= AMD_CHIPSET_UNKNOWN
;
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
;
762 static const struct sdhci_pci_fixes sdhci_amd
= {
766 static const struct pci_device_id pci_ids
[] = {
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
,
776 .vendor
= PCI_VENDOR_ID_RICOH
,
778 .subvendor
= PCI_ANY_ID
,
779 .subdevice
= PCI_ANY_ID
,
780 .driver_data
= (kernel_ulong_t
)&sdhci_ricoh_mmc
,
784 .vendor
= PCI_VENDOR_ID_RICOH
,
786 .subvendor
= PCI_ANY_ID
,
787 .subdevice
= PCI_ANY_ID
,
788 .driver_data
= (kernel_ulong_t
)&sdhci_ricoh_mmc
,
792 .vendor
= PCI_VENDOR_ID_RICOH
,
794 .subvendor
= PCI_ANY_ID
,
795 .subdevice
= PCI_ANY_ID
,
796 .driver_data
= (kernel_ulong_t
)&sdhci_ricoh_mmc
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
872 .vendor
= PCI_VENDOR_ID_SYSKONNECT
,
874 .subvendor
= PCI_ANY_ID
,
875 .subdevice
= PCI_ANY_ID
,
876 .driver_data
= (kernel_ulong_t
)&sdhci_syskt
,
880 .vendor
= PCI_VENDOR_ID_VIA
,
882 .subvendor
= PCI_ANY_ID
,
883 .subdevice
= PCI_ANY_ID
,
884 .driver_data
= (kernel_ulong_t
)&sdhci_via
,
888 .vendor
= PCI_VENDOR_ID_REALTEK
,
890 .subvendor
= PCI_ANY_ID
,
891 .subdevice
= PCI_ANY_ID
,
892 .driver_data
= (kernel_ulong_t
)&sdhci_rtsx
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
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
,
1255 { /* Generic SD host controller */
1256 PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI
<< 8), 0xFFFF00)
1259 { /* end: all zeroes */ },
1262 MODULE_DEVICE_TABLE(pci
, pci_ids
);
1264 /*****************************************************************************\
1266 * SDHCI core callbacks *
1268 \*****************************************************************************/
1270 static int sdhci_pci_enable_dma(struct sdhci_host
*host
)
1272 struct sdhci_pci_slot
*slot
;
1273 struct pci_dev
*pdev
;
1276 slot
= sdhci_priv(host
);
1277 pdev
= slot
->chip
->pdev
;
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");
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
;
1290 ret
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
1292 dev_warn(&pdev
->dev
, "Failed to set 64-bit DMA mask\n");
1296 ret
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
1300 pci_set_master(pdev
);
1305 static void sdhci_pci_set_bus_width(struct sdhci_host
*host
, int width
)
1309 ctrl
= sdhci_readb(host
, SDHCI_HOST_CONTROL
);
1312 case MMC_BUS_WIDTH_8
:
1313 ctrl
|= SDHCI_CTRL_8BITBUS
;
1314 ctrl
&= ~SDHCI_CTRL_4BITBUS
;
1316 case MMC_BUS_WIDTH_4
:
1317 ctrl
|= SDHCI_CTRL_4BITBUS
;
1318 ctrl
&= ~SDHCI_CTRL_8BITBUS
;
1321 ctrl
&= ~(SDHCI_CTRL_8BITBUS
| SDHCI_CTRL_4BITBUS
);
1325 sdhci_writeb(host
, ctrl
, SDHCI_HOST_CONTROL
);
1328 static void sdhci_pci_gpio_hw_reset(struct sdhci_host
*host
)
1330 struct sdhci_pci_slot
*slot
= sdhci_priv(host
);
1331 int rst_n_gpio
= slot
->rst_n_gpio
;
1333 if (!gpio_is_valid(rst_n_gpio
))
1335 gpio_set_value_cansleep(rst_n_gpio
, 0);
1336 /* For eMMC, minimum is 1us but give it 10us for good measure */
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);
1343 static void sdhci_pci_hw_reset(struct sdhci_host
*host
)
1345 struct sdhci_pci_slot
*slot
= sdhci_priv(host
);
1348 slot
->hw_reset(host
);
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
)
1356 struct sdhci_pci_slot
*slot
= sdhci_priv(host
);
1358 if (!slot
->select_drive_strength
)
1361 return slot
->select_drive_strength(host
, card
, max_dtr
, host_drv
,
1362 card_drv
, drv_type
);
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
,
1375 /*****************************************************************************\
1379 \*****************************************************************************/
1383 static int sdhci_pci_suspend(struct device
*dev
)
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;
1392 chip
= pci_get_drvdata(pdev
);
1396 for (i
= 0; i
< chip
->num_slots
; i
++) {
1397 slot
= chip
->slots
[i
];
1401 ret
= sdhci_suspend_host(slot
->host
);
1404 goto err_pci_suspend
;
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
);
1410 pm_flags
|= slot_pm_flags
;
1413 if (chip
->fixes
&& chip
->fixes
->suspend
) {
1414 ret
= chip
->fixes
->suspend(chip
);
1416 goto err_pci_suspend
;
1419 if (pm_flags
& MMC_PM_KEEP_POWER
) {
1420 if (pm_flags
& MMC_PM_WAKE_SDIO_IRQ
)
1421 device_init_wakeup(dev
, true);
1423 device_init_wakeup(dev
, false);
1425 device_init_wakeup(dev
, false);
1431 sdhci_resume_host(chip
->slots
[i
]->host
);
1435 static int sdhci_pci_resume(struct device
*dev
)
1437 struct pci_dev
*pdev
= to_pci_dev(dev
);
1438 struct sdhci_pci_chip
*chip
;
1439 struct sdhci_pci_slot
*slot
;
1442 chip
= pci_get_drvdata(pdev
);
1446 if (chip
->fixes
&& chip
->fixes
->resume
) {
1447 ret
= chip
->fixes
->resume(chip
);
1452 for (i
= 0; i
< chip
->num_slots
; i
++) {
1453 slot
= chip
->slots
[i
];
1457 ret
= sdhci_resume_host(slot
->host
);
1465 static int sdhci_pci_runtime_suspend(struct device
*dev
)
1467 struct pci_dev
*pdev
= container_of(dev
, struct pci_dev
, dev
);
1468 struct sdhci_pci_chip
*chip
;
1469 struct sdhci_pci_slot
*slot
;
1472 chip
= pci_get_drvdata(pdev
);
1476 for (i
= 0; i
< chip
->num_slots
; i
++) {
1477 slot
= chip
->slots
[i
];
1481 ret
= sdhci_runtime_suspend_host(slot
->host
);
1484 goto err_pci_runtime_suspend
;
1487 if (chip
->fixes
&& chip
->fixes
->suspend
) {
1488 ret
= chip
->fixes
->suspend(chip
);
1490 goto err_pci_runtime_suspend
;
1495 err_pci_runtime_suspend
:
1497 sdhci_runtime_resume_host(chip
->slots
[i
]->host
);
1501 static int sdhci_pci_runtime_resume(struct device
*dev
)
1503 struct pci_dev
*pdev
= container_of(dev
, struct pci_dev
, dev
);
1504 struct sdhci_pci_chip
*chip
;
1505 struct sdhci_pci_slot
*slot
;
1508 chip
= pci_get_drvdata(pdev
);
1512 if (chip
->fixes
&& chip
->fixes
->resume
) {
1513 ret
= chip
->fixes
->resume(chip
);
1518 for (i
= 0; i
< chip
->num_slots
; i
++) {
1519 slot
= chip
->slots
[i
];
1523 ret
= sdhci_runtime_resume_host(slot
->host
);
1531 #else /* CONFIG_PM */
1533 #define sdhci_pci_suspend NULL
1534 #define sdhci_pci_resume NULL
1536 #endif /* CONFIG_PM */
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
)
1545 /*****************************************************************************\
1547 * Device probing/removal *
1549 \*****************************************************************************/
1551 static struct sdhci_pci_slot
*sdhci_pci_probe_slot(
1552 struct pci_dev
*pdev
, struct sdhci_pci_chip
*chip
, int first_bar
,
1555 struct sdhci_pci_slot
*slot
;
1556 struct sdhci_host
*host
;
1557 int ret
, bar
= first_bar
+ slotno
;
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
);
1564 if (pci_resource_len(pdev
, bar
) < 0x100) {
1565 dev_err(&pdev
->dev
, "Invalid iomem size. You may "
1566 "experience problems.\n");
1569 if ((pdev
->class & 0x0000FF) == PCI_SDHCI_IFVENDOR
) {
1570 dev_err(&pdev
->dev
, "Vendor specific interface. Aborting.\n");
1571 return ERR_PTR(-ENODEV
);
1574 if ((pdev
->class & 0x0000FF) > PCI_SDHCI_IFVENDOR
) {
1575 dev_err(&pdev
->dev
, "Unknown interface. Aborting.\n");
1576 return ERR_PTR(-ENODEV
);
1579 host
= sdhci_alloc_host(&pdev
->dev
, sizeof(struct sdhci_pci_slot
));
1581 dev_err(&pdev
->dev
, "cannot allocate host\n");
1582 return ERR_CAST(host
);
1585 slot
= sdhci_priv(host
);
1589 slot
->pci_bar
= bar
;
1590 slot
->rst_n_gpio
= -EINVAL
;
1591 slot
->cd_gpio
= -EINVAL
;
1594 /* Retrieve platform data if there is any */
1595 if (*sdhci_pci_get_data
)
1596 slot
->data
= sdhci_pci_get_data(pdev
, slotno
);
1599 if (slot
->data
->setup
) {
1600 ret
= slot
->data
->setup(slot
->data
);
1602 dev_err(&pdev
->dev
, "platform setup failed\n");
1606 slot
->rst_n_gpio
= slot
->data
->rst_n_gpio
;
1607 slot
->cd_gpio
= slot
->data
->cd_gpio
;
1610 host
->hw_name
= "PCI";
1611 host
->ops
= &sdhci_pci_ops
;
1612 host
->quirks
= chip
->quirks
;
1613 host
->quirks2
= chip
->quirks2
;
1615 host
->irq
= pdev
->irq
;
1617 ret
= pci_request_region(pdev
, bar
, mmc_hostname(host
->mmc
));
1619 dev_err(&pdev
->dev
, "cannot request region\n");
1623 host
->ioaddr
= pci_ioremap_bar(pdev
, bar
);
1624 if (!host
->ioaddr
) {
1625 dev_err(&pdev
->dev
, "failed to remap registers\n");
1630 if (chip
->fixes
&& chip
->fixes
->probe_slot
) {
1631 ret
= chip
->fixes
->probe_slot(slot
);
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
;
1642 dev_warn(&pdev
->dev
, "failed to request rst_n_gpio\n");
1643 slot
->rst_n_gpio
= -EINVAL
;
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
;
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");
1658 ret
= sdhci_add_host(host
);
1662 sdhci_pci_add_own_cd(slot
);
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.
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;
1676 if (gpio_is_valid(slot
->rst_n_gpio
))
1677 gpio_free(slot
->rst_n_gpio
);
1679 if (chip
->fixes
&& chip
->fixes
->remove_slot
)
1680 chip
->fixes
->remove_slot(slot
, 0);
1683 iounmap(host
->ioaddr
);
1686 pci_release_region(pdev
, bar
);
1689 if (slot
->data
&& slot
->data
->cleanup
)
1690 slot
->data
->cleanup(slot
->data
);
1693 sdhci_free_host(host
);
1695 return ERR_PTR(ret
);
1698 static void sdhci_pci_remove_slot(struct sdhci_pci_slot
*slot
)
1703 sdhci_pci_remove_own_cd(slot
);
1706 scratch
= readl(slot
->host
->ioaddr
+ SDHCI_INT_STATUS
);
1707 if (scratch
== (u32
)-1)
1710 sdhci_remove_host(slot
->host
, dead
);
1712 if (gpio_is_valid(slot
->rst_n_gpio
))
1713 gpio_free(slot
->rst_n_gpio
);
1715 if (slot
->chip
->fixes
&& slot
->chip
->fixes
->remove_slot
)
1716 slot
->chip
->fixes
->remove_slot(slot
, dead
);
1718 if (slot
->data
&& slot
->data
->cleanup
)
1719 slot
->data
->cleanup(slot
->data
);
1721 pci_release_region(slot
->chip
->pdev
, slot
->pci_bar
);
1723 sdhci_free_host(slot
->host
);
1726 static void sdhci_pci_runtime_pm_allow(struct device
*dev
)
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);
1735 static void sdhci_pci_runtime_pm_forbid(struct device
*dev
)
1737 pm_runtime_forbid(dev
);
1738 pm_runtime_get_noresume(dev
);
1741 static int sdhci_pci_probe(struct pci_dev
*pdev
,
1742 const struct pci_device_id
*ent
)
1744 struct sdhci_pci_chip
*chip
;
1745 struct sdhci_pci_slot
*slot
;
1747 u8 slots
, first_bar
;
1750 BUG_ON(pdev
== NULL
);
1751 BUG_ON(ent
== NULL
);
1753 dev_info(&pdev
->dev
, "SDHCI controller found [%04x:%04x] (rev %x)\n",
1754 (int)pdev
->vendor
, (int)pdev
->device
, (int)pdev
->revision
);
1756 ret
= pci_read_config_byte(pdev
, PCI_SLOT_INFO
, &slots
);
1760 slots
= PCI_SLOT_INFO_SLOTS(slots
) + 1;
1761 dev_dbg(&pdev
->dev
, "found %d slot(s)\n", slots
);
1765 BUG_ON(slots
> MAX_SLOTS
);
1767 ret
= pci_read_config_byte(pdev
, PCI_SLOT_INFO
, &first_bar
);
1771 first_bar
&= PCI_SLOT_INFO_FIRST_BAR_MASK
;
1773 if (first_bar
> 5) {
1774 dev_err(&pdev
->dev
, "Invalid first BAR. Aborting.\n");
1778 ret
= pci_enable_device(pdev
);
1782 chip
= kzalloc(sizeof(struct sdhci_pci_chip
), GFP_KERNEL
);
1789 chip
->fixes
= (const struct sdhci_pci_fixes
*)ent
->driver_data
;
1791 chip
->quirks
= chip
->fixes
->quirks
;
1792 chip
->quirks2
= chip
->fixes
->quirks2
;
1793 chip
->allow_runtime_pm
= chip
->fixes
->allow_runtime_pm
;
1795 chip
->num_slots
= slots
;
1797 pci_set_drvdata(pdev
, chip
);
1799 if (chip
->fixes
&& chip
->fixes
->probe
) {
1800 ret
= chip
->fixes
->probe(chip
);
1805 slots
= chip
->num_slots
; /* Quirk may have changed this */
1807 for (i
= 0; i
< slots
; i
++) {
1808 slot
= sdhci_pci_probe_slot(pdev
, chip
, first_bar
, i
);
1810 for (i
--; i
>= 0; i
--)
1811 sdhci_pci_remove_slot(chip
->slots
[i
]);
1812 ret
= PTR_ERR(slot
);
1816 chip
->slots
[i
] = slot
;
1819 if (chip
->allow_runtime_pm
)
1820 sdhci_pci_runtime_pm_allow(&pdev
->dev
);
1825 pci_set_drvdata(pdev
, NULL
);
1829 pci_disable_device(pdev
);
1833 static void sdhci_pci_remove(struct pci_dev
*pdev
)
1836 struct sdhci_pci_chip
*chip
;
1838 chip
= pci_get_drvdata(pdev
);
1841 if (chip
->allow_runtime_pm
)
1842 sdhci_pci_runtime_pm_forbid(&pdev
->dev
);
1844 for (i
= 0; i
< chip
->num_slots
; i
++)
1845 sdhci_pci_remove_slot(chip
->slots
[i
]);
1847 pci_set_drvdata(pdev
, NULL
);
1851 pci_disable_device(pdev
);
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
,
1860 .pm
= &sdhci_pci_pm_ops
1864 module_pci_driver(sdhci_driver
);
1866 MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
1867 MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver");
1868 MODULE_LICENSE("GPL");