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b8c86fc5 PO |
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> | |
88b47679 | 17 | #include <linux/module.h> |
b8c86fc5 PO |
18 | #include <linux/pci.h> |
19 | #include <linux/dma-mapping.h> | |
5a0e3ad6 | 20 | #include <linux/slab.h> |
ccc92c23 | 21 | #include <linux/device.h> |
b8c86fc5 | 22 | #include <linux/mmc/host.h> |
b177bc91 AP |
23 | #include <linux/scatterlist.h> |
24 | #include <linux/io.h> | |
0f201655 AH |
25 | #include <linux/gpio.h> |
26 | #include <linux/sfi.h> | |
66fd8ad5 | 27 | #include <linux/pm_runtime.h> |
b8c86fc5 PO |
28 | |
29 | #include "sdhci.h" | |
30 | ||
31 | /* | |
32 | * PCI registers | |
33 | */ | |
34 | ||
35 | #define PCI_SDHCI_IFPIO 0x00 | |
36 | #define PCI_SDHCI_IFDMA 0x01 | |
37 | #define PCI_SDHCI_IFVENDOR 0x02 | |
38 | ||
39 | #define PCI_SLOT_INFO 0x40 /* 8 bits */ | |
40 | #define PCI_SLOT_INFO_SLOTS(x) ((x >> 4) & 7) | |
41 | #define PCI_SLOT_INFO_FIRST_BAR_MASK 0x07 | |
42 | ||
43 | #define MAX_SLOTS 8 | |
44 | ||
22606405 | 45 | struct sdhci_pci_chip; |
4489428a | 46 | struct sdhci_pci_slot; |
22606405 PO |
47 | |
48 | struct sdhci_pci_fixes { | |
49 | unsigned int quirks; | |
c43fd774 | 50 | bool allow_runtime_pm; |
22606405 | 51 | |
b177bc91 | 52 | int (*probe) (struct sdhci_pci_chip *); |
45211e21 | 53 | |
b177bc91 AP |
54 | int (*probe_slot) (struct sdhci_pci_slot *); |
55 | void (*remove_slot) (struct sdhci_pci_slot *, int); | |
4489428a | 56 | |
b177bc91 | 57 | int (*suspend) (struct sdhci_pci_chip *, |
4489428a | 58 | pm_message_t); |
b177bc91 | 59 | int (*resume) (struct sdhci_pci_chip *); |
22606405 PO |
60 | }; |
61 | ||
62 | struct sdhci_pci_slot { | |
63 | struct sdhci_pci_chip *chip; | |
64 | struct sdhci_host *host; | |
b8c86fc5 | 65 | |
22606405 | 66 | int pci_bar; |
0f201655 | 67 | int rst_n_gpio; |
66fd8ad5 AH |
68 | int cd_gpio; |
69 | int cd_irq; | |
22606405 PO |
70 | }; |
71 | ||
72 | struct sdhci_pci_chip { | |
73 | struct pci_dev *pdev; | |
74 | ||
75 | unsigned int quirks; | |
c43fd774 | 76 | bool allow_runtime_pm; |
22606405 PO |
77 | const struct sdhci_pci_fixes *fixes; |
78 | ||
79 | int num_slots; /* Slots on controller */ | |
80 | struct sdhci_pci_slot *slots[MAX_SLOTS]; /* Pointers to host slots */ | |
81 | }; | |
82 | ||
83 | ||
84 | /*****************************************************************************\ | |
85 | * * | |
86 | * Hardware specific quirk handling * | |
87 | * * | |
88 | \*****************************************************************************/ | |
89 | ||
90 | static int ricoh_probe(struct sdhci_pci_chip *chip) | |
91 | { | |
c99436fb CB |
92 | if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG || |
93 | chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY) | |
22606405 | 94 | chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET; |
ccc92c23 ML |
95 | return 0; |
96 | } | |
97 | ||
98 | static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot) | |
99 | { | |
100 | slot->host->caps = | |
101 | ((0x21 << SDHCI_TIMEOUT_CLK_SHIFT) | |
102 | & SDHCI_TIMEOUT_CLK_MASK) | | |
22606405 | 103 | |
ccc92c23 ML |
104 | ((0x21 << SDHCI_CLOCK_BASE_SHIFT) |
105 | & SDHCI_CLOCK_BASE_MASK) | | |
106 | ||
107 | SDHCI_TIMEOUT_CLK_UNIT | | |
108 | SDHCI_CAN_VDD_330 | | |
109 | SDHCI_CAN_DO_SDMA; | |
110 | return 0; | |
111 | } | |
112 | ||
113 | static int ricoh_mmc_resume(struct sdhci_pci_chip *chip) | |
114 | { | |
115 | /* Apply a delay to allow controller to settle */ | |
116 | /* Otherwise it becomes confused if card state changed | |
117 | during suspend */ | |
118 | msleep(500); | |
22606405 PO |
119 | return 0; |
120 | } | |
121 | ||
122 | static const struct sdhci_pci_fixes sdhci_ricoh = { | |
123 | .probe = ricoh_probe, | |
84938294 VK |
124 | .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | |
125 | SDHCI_QUIRK_FORCE_DMA | | |
126 | SDHCI_QUIRK_CLOCK_BEFORE_RESET, | |
22606405 PO |
127 | }; |
128 | ||
ccc92c23 ML |
129 | static const struct sdhci_pci_fixes sdhci_ricoh_mmc = { |
130 | .probe_slot = ricoh_mmc_probe_slot, | |
131 | .resume = ricoh_mmc_resume, | |
132 | .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | | |
133 | SDHCI_QUIRK_CLOCK_BEFORE_RESET | | |
134 | SDHCI_QUIRK_NO_CARD_NO_RESET | | |
135 | SDHCI_QUIRK_MISSING_CAPS | |
136 | }; | |
137 | ||
22606405 PO |
138 | static const struct sdhci_pci_fixes sdhci_ene_712 = { |
139 | .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | | |
140 | SDHCI_QUIRK_BROKEN_DMA, | |
141 | }; | |
142 | ||
143 | static const struct sdhci_pci_fixes sdhci_ene_714 = { | |
144 | .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | | |
145 | SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | | |
146 | SDHCI_QUIRK_BROKEN_DMA, | |
147 | }; | |
148 | ||
149 | static const struct sdhci_pci_fixes sdhci_cafe = { | |
150 | .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | | |
a0874897 | 151 | SDHCI_QUIRK_NO_BUSY_IRQ | |
ee53ab5d | 152 | SDHCI_QUIRK_BROKEN_TIMEOUT_VAL, |
22606405 PO |
153 | }; |
154 | ||
68077b02 ML |
155 | static int mrst_hc_probe_slot(struct sdhci_pci_slot *slot) |
156 | { | |
157 | slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA; | |
158 | return 0; | |
159 | } | |
160 | ||
f9ee3eab AC |
161 | /* |
162 | * ADMA operation is disabled for Moorestown platform due to | |
163 | * hardware bugs. | |
164 | */ | |
35ac6f08 | 165 | static int mrst_hc_probe(struct sdhci_pci_chip *chip) |
f9ee3eab AC |
166 | { |
167 | /* | |
35ac6f08 JP |
168 | * slots number is fixed here for MRST as SDIO3/5 are never used and |
169 | * have hardware bugs. | |
f9ee3eab AC |
170 | */ |
171 | chip->num_slots = 1; | |
172 | return 0; | |
173 | } | |
174 | ||
0f201655 AH |
175 | /* Medfield eMMC hardware reset GPIOs */ |
176 | static int mfd_emmc0_rst_gpio = -EINVAL; | |
177 | static int mfd_emmc1_rst_gpio = -EINVAL; | |
178 | ||
179 | static int mfd_emmc_gpio_parse(struct sfi_table_header *table) | |
180 | { | |
181 | struct sfi_table_simple *sb = (struct sfi_table_simple *)table; | |
182 | struct sfi_gpio_table_entry *entry; | |
183 | int i, num; | |
184 | ||
185 | num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry); | |
186 | entry = (struct sfi_gpio_table_entry *)sb->pentry; | |
187 | ||
188 | for (i = 0; i < num; i++, entry++) { | |
189 | if (!strncmp(entry->pin_name, "emmc0_rst", SFI_NAME_LEN)) | |
190 | mfd_emmc0_rst_gpio = entry->pin_no; | |
191 | else if (!strncmp(entry->pin_name, "emmc1_rst", SFI_NAME_LEN)) | |
192 | mfd_emmc1_rst_gpio = entry->pin_no; | |
193 | } | |
194 | ||
195 | return 0; | |
196 | } | |
197 | ||
66fd8ad5 AH |
198 | #ifdef CONFIG_PM_RUNTIME |
199 | ||
200 | static irqreturn_t mfd_sd_cd(int irq, void *dev_id) | |
201 | { | |
202 | struct sdhci_pci_slot *slot = dev_id; | |
203 | struct sdhci_host *host = slot->host; | |
204 | ||
205 | mmc_detect_change(host->mmc, msecs_to_jiffies(200)); | |
206 | return IRQ_HANDLED; | |
207 | } | |
208 | ||
209 | #define MFLD_SD_CD_PIN 69 | |
210 | ||
211 | static int mfd_sd_probe_slot(struct sdhci_pci_slot *slot) | |
212 | { | |
213 | int err, irq, gpio = MFLD_SD_CD_PIN; | |
214 | ||
215 | slot->cd_gpio = -EINVAL; | |
216 | slot->cd_irq = -EINVAL; | |
217 | ||
218 | err = gpio_request(gpio, "sd_cd"); | |
219 | if (err < 0) | |
220 | goto out; | |
221 | ||
222 | err = gpio_direction_input(gpio); | |
223 | if (err < 0) | |
224 | goto out_free; | |
225 | ||
226 | irq = gpio_to_irq(gpio); | |
227 | if (irq < 0) | |
228 | goto out_free; | |
229 | ||
230 | err = request_irq(irq, mfd_sd_cd, IRQF_TRIGGER_RISING | | |
231 | IRQF_TRIGGER_FALLING, "sd_cd", slot); | |
232 | if (err) | |
233 | goto out_free; | |
234 | ||
235 | slot->cd_gpio = gpio; | |
236 | slot->cd_irq = irq; | |
237 | slot->host->quirks2 |= SDHCI_QUIRK2_OWN_CARD_DETECTION; | |
238 | ||
239 | return 0; | |
240 | ||
241 | out_free: | |
242 | gpio_free(gpio); | |
243 | out: | |
244 | dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n"); | |
245 | return 0; | |
246 | } | |
247 | ||
248 | static void mfd_sd_remove_slot(struct sdhci_pci_slot *slot, int dead) | |
249 | { | |
250 | if (slot->cd_irq >= 0) | |
251 | free_irq(slot->cd_irq, slot); | |
252 | gpio_free(slot->cd_gpio); | |
253 | } | |
254 | ||
255 | #else | |
256 | ||
257 | #define mfd_sd_probe_slot NULL | |
258 | #define mfd_sd_remove_slot NULL | |
259 | ||
260 | #endif | |
261 | ||
0d013bcf AH |
262 | static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot) |
263 | { | |
0f201655 AH |
264 | const char *name = NULL; |
265 | int gpio = -EINVAL; | |
266 | ||
267 | sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, mfd_emmc_gpio_parse); | |
268 | ||
269 | switch (slot->chip->pdev->device) { | |
270 | case PCI_DEVICE_ID_INTEL_MFD_EMMC0: | |
271 | gpio = mfd_emmc0_rst_gpio; | |
272 | name = "eMMC0_reset"; | |
273 | break; | |
274 | case PCI_DEVICE_ID_INTEL_MFD_EMMC1: | |
275 | gpio = mfd_emmc1_rst_gpio; | |
276 | name = "eMMC1_reset"; | |
277 | break; | |
278 | } | |
279 | ||
280 | if (!gpio_request(gpio, name)) { | |
281 | gpio_direction_output(gpio, 1); | |
282 | slot->rst_n_gpio = gpio; | |
283 | slot->host->mmc->caps |= MMC_CAP_HW_RESET; | |
284 | } | |
285 | ||
66fd8ad5 | 286 | slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE; |
0f201655 | 287 | |
f7c56ef2 AH |
288 | slot->host->mmc->caps2 = MMC_CAP2_BOOTPART_NOACC; |
289 | ||
0d013bcf AH |
290 | return 0; |
291 | } | |
292 | ||
0f201655 AH |
293 | static void mfd_emmc_remove_slot(struct sdhci_pci_slot *slot, int dead) |
294 | { | |
295 | gpio_free(slot->rst_n_gpio); | |
296 | } | |
297 | ||
f9ee3eab AC |
298 | static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = { |
299 | .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, | |
68077b02 | 300 | .probe_slot = mrst_hc_probe_slot, |
f9ee3eab AC |
301 | }; |
302 | ||
35ac6f08 | 303 | static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = { |
f9ee3eab | 304 | .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, |
35ac6f08 | 305 | .probe = mrst_hc_probe, |
f9ee3eab AC |
306 | }; |
307 | ||
29229052 XS |
308 | static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = { |
309 | .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, | |
c43fd774 | 310 | .allow_runtime_pm = true, |
66fd8ad5 AH |
311 | .probe_slot = mfd_sd_probe_slot, |
312 | .remove_slot = mfd_sd_remove_slot, | |
29229052 XS |
313 | }; |
314 | ||
0d013bcf AH |
315 | static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = { |
316 | .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, | |
c43fd774 | 317 | .allow_runtime_pm = true, |
0d013bcf AH |
318 | }; |
319 | ||
320 | static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = { | |
29229052 | 321 | .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, |
c43fd774 | 322 | .allow_runtime_pm = true, |
0d013bcf | 323 | .probe_slot = mfd_emmc_probe_slot, |
0f201655 | 324 | .remove_slot = mfd_emmc_remove_slot, |
29229052 XS |
325 | }; |
326 | ||
26daa1ed JL |
327 | /* O2Micro extra registers */ |
328 | #define O2_SD_LOCK_WP 0xD3 | |
329 | #define O2_SD_MULTI_VCC3V 0xEE | |
330 | #define O2_SD_CLKREQ 0xEC | |
331 | #define O2_SD_CAPS 0xE0 | |
332 | #define O2_SD_ADMA1 0xE2 | |
333 | #define O2_SD_ADMA2 0xE7 | |
334 | #define O2_SD_INF_MOD 0xF1 | |
335 | ||
336 | static int o2_probe(struct sdhci_pci_chip *chip) | |
337 | { | |
338 | int ret; | |
339 | u8 scratch; | |
340 | ||
341 | switch (chip->pdev->device) { | |
342 | case PCI_DEVICE_ID_O2_8220: | |
343 | case PCI_DEVICE_ID_O2_8221: | |
344 | case PCI_DEVICE_ID_O2_8320: | |
345 | case PCI_DEVICE_ID_O2_8321: | |
346 | /* This extra setup is required due to broken ADMA. */ | |
347 | ret = pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch); | |
348 | if (ret) | |
349 | return ret; | |
350 | scratch &= 0x7f; | |
351 | pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch); | |
352 | ||
353 | /* Set Multi 3 to VCC3V# */ | |
354 | pci_write_config_byte(chip->pdev, O2_SD_MULTI_VCC3V, 0x08); | |
355 | ||
356 | /* Disable CLK_REQ# support after media DET */ | |
357 | ret = pci_read_config_byte(chip->pdev, O2_SD_CLKREQ, &scratch); | |
358 | if (ret) | |
359 | return ret; | |
360 | scratch |= 0x20; | |
361 | pci_write_config_byte(chip->pdev, O2_SD_CLKREQ, scratch); | |
362 | ||
363 | /* Choose capabilities, enable SDMA. We have to write 0x01 | |
364 | * to the capabilities register first to unlock it. | |
365 | */ | |
366 | ret = pci_read_config_byte(chip->pdev, O2_SD_CAPS, &scratch); | |
367 | if (ret) | |
368 | return ret; | |
369 | scratch |= 0x01; | |
370 | pci_write_config_byte(chip->pdev, O2_SD_CAPS, scratch); | |
371 | pci_write_config_byte(chip->pdev, O2_SD_CAPS, 0x73); | |
372 | ||
373 | /* Disable ADMA1/2 */ | |
374 | pci_write_config_byte(chip->pdev, O2_SD_ADMA1, 0x39); | |
375 | pci_write_config_byte(chip->pdev, O2_SD_ADMA2, 0x08); | |
376 | ||
377 | /* Disable the infinite transfer mode */ | |
378 | ret = pci_read_config_byte(chip->pdev, O2_SD_INF_MOD, &scratch); | |
379 | if (ret) | |
380 | return ret; | |
381 | scratch |= 0x08; | |
382 | pci_write_config_byte(chip->pdev, O2_SD_INF_MOD, scratch); | |
383 | ||
384 | /* Lock WP */ | |
385 | ret = pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch); | |
386 | if (ret) | |
387 | return ret; | |
388 | scratch |= 0x80; | |
389 | pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch); | |
390 | } | |
391 | ||
392 | return 0; | |
393 | } | |
394 | ||
45211e21 PO |
395 | static int jmicron_pmos(struct sdhci_pci_chip *chip, int on) |
396 | { | |
397 | u8 scratch; | |
398 | int ret; | |
399 | ||
400 | ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch); | |
401 | if (ret) | |
402 | return ret; | |
403 | ||
404 | /* | |
405 | * Turn PMOS on [bit 0], set over current detection to 2.4 V | |
406 | * [bit 1:2] and enable over current debouncing [bit 6]. | |
407 | */ | |
408 | if (on) | |
409 | scratch |= 0x47; | |
410 | else | |
411 | scratch &= ~0x47; | |
412 | ||
413 | ret = pci_write_config_byte(chip->pdev, 0xAE, scratch); | |
414 | if (ret) | |
415 | return ret; | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | static int jmicron_probe(struct sdhci_pci_chip *chip) | |
421 | { | |
422 | int ret; | |
8f230f45 | 423 | u16 mmcdev = 0; |
45211e21 | 424 | |
93fc48c7 PO |
425 | if (chip->pdev->revision == 0) { |
426 | chip->quirks |= SDHCI_QUIRK_32BIT_DMA_ADDR | | |
427 | SDHCI_QUIRK_32BIT_DMA_SIZE | | |
2134a922 | 428 | SDHCI_QUIRK_32BIT_ADMA_SIZE | |
4a3cba32 | 429 | SDHCI_QUIRK_RESET_AFTER_REQUEST | |
86a6a874 | 430 | SDHCI_QUIRK_BROKEN_SMALL_PIO; |
93fc48c7 PO |
431 | } |
432 | ||
4489428a PO |
433 | /* |
434 | * JMicron chips can have two interfaces to the same hardware | |
435 | * in order to work around limitations in Microsoft's driver. | |
436 | * We need to make sure we only bind to one of them. | |
437 | * | |
438 | * This code assumes two things: | |
439 | * | |
440 | * 1. The PCI code adds subfunctions in order. | |
441 | * | |
442 | * 2. The MMC interface has a lower subfunction number | |
443 | * than the SD interface. | |
444 | */ | |
8f230f45 TI |
445 | if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_SD) |
446 | mmcdev = PCI_DEVICE_ID_JMICRON_JMB38X_MMC; | |
447 | else if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD) | |
448 | mmcdev = PCI_DEVICE_ID_JMICRON_JMB388_ESD; | |
449 | ||
450 | if (mmcdev) { | |
4489428a PO |
451 | struct pci_dev *sd_dev; |
452 | ||
453 | sd_dev = NULL; | |
454 | while ((sd_dev = pci_get_device(PCI_VENDOR_ID_JMICRON, | |
8f230f45 | 455 | mmcdev, sd_dev)) != NULL) { |
4489428a PO |
456 | if ((PCI_SLOT(chip->pdev->devfn) == |
457 | PCI_SLOT(sd_dev->devfn)) && | |
458 | (chip->pdev->bus == sd_dev->bus)) | |
459 | break; | |
460 | } | |
461 | ||
462 | if (sd_dev) { | |
463 | pci_dev_put(sd_dev); | |
464 | dev_info(&chip->pdev->dev, "Refusing to bind to " | |
465 | "secondary interface.\n"); | |
466 | return -ENODEV; | |
467 | } | |
468 | } | |
469 | ||
45211e21 PO |
470 | /* |
471 | * JMicron chips need a bit of a nudge to enable the power | |
472 | * output pins. | |
473 | */ | |
474 | ret = jmicron_pmos(chip, 1); | |
475 | if (ret) { | |
476 | dev_err(&chip->pdev->dev, "Failure enabling card power\n"); | |
477 | return ret; | |
478 | } | |
479 | ||
82b0e23a TI |
480 | /* quirk for unsable RO-detection on JM388 chips */ |
481 | if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD || | |
482 | chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) | |
483 | chip->quirks |= SDHCI_QUIRK_UNSTABLE_RO_DETECT; | |
484 | ||
45211e21 PO |
485 | return 0; |
486 | } | |
487 | ||
4489428a PO |
488 | static void jmicron_enable_mmc(struct sdhci_host *host, int on) |
489 | { | |
490 | u8 scratch; | |
491 | ||
492 | scratch = readb(host->ioaddr + 0xC0); | |
493 | ||
494 | if (on) | |
495 | scratch |= 0x01; | |
496 | else | |
497 | scratch &= ~0x01; | |
498 | ||
499 | writeb(scratch, host->ioaddr + 0xC0); | |
500 | } | |
501 | ||
502 | static int jmicron_probe_slot(struct sdhci_pci_slot *slot) | |
503 | { | |
2134a922 PO |
504 | if (slot->chip->pdev->revision == 0) { |
505 | u16 version; | |
506 | ||
507 | version = readl(slot->host->ioaddr + SDHCI_HOST_VERSION); | |
508 | version = (version & SDHCI_VENDOR_VER_MASK) >> | |
509 | SDHCI_VENDOR_VER_SHIFT; | |
510 | ||
511 | /* | |
512 | * Older versions of the chip have lots of nasty glitches | |
513 | * in the ADMA engine. It's best just to avoid it | |
514 | * completely. | |
515 | */ | |
516 | if (version < 0xAC) | |
517 | slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA; | |
518 | } | |
519 | ||
8f230f45 TI |
520 | /* JM388 MMC doesn't support 1.8V while SD supports it */ |
521 | if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) { | |
522 | slot->host->ocr_avail_sd = MMC_VDD_32_33 | MMC_VDD_33_34 | | |
523 | MMC_VDD_29_30 | MMC_VDD_30_31 | | |
524 | MMC_VDD_165_195; /* allow 1.8V */ | |
525 | slot->host->ocr_avail_mmc = MMC_VDD_32_33 | MMC_VDD_33_34 | | |
526 | MMC_VDD_29_30 | MMC_VDD_30_31; /* no 1.8V for MMC */ | |
527 | } | |
528 | ||
4489428a PO |
529 | /* |
530 | * The secondary interface requires a bit set to get the | |
531 | * interrupts. | |
532 | */ | |
8f230f45 TI |
533 | if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || |
534 | slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) | |
4489428a PO |
535 | jmicron_enable_mmc(slot->host, 1); |
536 | ||
d75c1084 TI |
537 | slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST; |
538 | ||
4489428a PO |
539 | return 0; |
540 | } | |
541 | ||
1e72859e | 542 | static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead) |
4489428a | 543 | { |
1e72859e PO |
544 | if (dead) |
545 | return; | |
546 | ||
8f230f45 TI |
547 | if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || |
548 | slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) | |
4489428a PO |
549 | jmicron_enable_mmc(slot->host, 0); |
550 | } | |
551 | ||
552 | static int jmicron_suspend(struct sdhci_pci_chip *chip, pm_message_t state) | |
553 | { | |
554 | int i; | |
555 | ||
8f230f45 TI |
556 | if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || |
557 | chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) { | |
b177bc91 | 558 | for (i = 0; i < chip->num_slots; i++) |
4489428a PO |
559 | jmicron_enable_mmc(chip->slots[i]->host, 0); |
560 | } | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
45211e21 PO |
565 | static int jmicron_resume(struct sdhci_pci_chip *chip) |
566 | { | |
4489428a PO |
567 | int ret, i; |
568 | ||
8f230f45 TI |
569 | if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || |
570 | chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) { | |
b177bc91 | 571 | for (i = 0; i < chip->num_slots; i++) |
4489428a PO |
572 | jmicron_enable_mmc(chip->slots[i]->host, 1); |
573 | } | |
45211e21 PO |
574 | |
575 | ret = jmicron_pmos(chip, 1); | |
576 | if (ret) { | |
577 | dev_err(&chip->pdev->dev, "Failure enabling card power\n"); | |
578 | return ret; | |
579 | } | |
580 | ||
581 | return 0; | |
582 | } | |
583 | ||
26daa1ed JL |
584 | static const struct sdhci_pci_fixes sdhci_o2 = { |
585 | .probe = o2_probe, | |
586 | }; | |
587 | ||
22606405 | 588 | static const struct sdhci_pci_fixes sdhci_jmicron = { |
45211e21 PO |
589 | .probe = jmicron_probe, |
590 | ||
4489428a PO |
591 | .probe_slot = jmicron_probe_slot, |
592 | .remove_slot = jmicron_remove_slot, | |
593 | ||
594 | .suspend = jmicron_suspend, | |
45211e21 | 595 | .resume = jmicron_resume, |
22606405 PO |
596 | }; |
597 | ||
a7a6186c NP |
598 | /* SysKonnect CardBus2SDIO extra registers */ |
599 | #define SYSKT_CTRL 0x200 | |
600 | #define SYSKT_RDFIFO_STAT 0x204 | |
601 | #define SYSKT_WRFIFO_STAT 0x208 | |
602 | #define SYSKT_POWER_DATA 0x20c | |
603 | #define SYSKT_POWER_330 0xef | |
604 | #define SYSKT_POWER_300 0xf8 | |
605 | #define SYSKT_POWER_184 0xcc | |
606 | #define SYSKT_POWER_CMD 0x20d | |
607 | #define SYSKT_POWER_START (1 << 7) | |
608 | #define SYSKT_POWER_STATUS 0x20e | |
609 | #define SYSKT_POWER_STATUS_OK (1 << 0) | |
610 | #define SYSKT_BOARD_REV 0x210 | |
611 | #define SYSKT_CHIP_REV 0x211 | |
612 | #define SYSKT_CONF_DATA 0x212 | |
613 | #define SYSKT_CONF_DATA_1V8 (1 << 2) | |
614 | #define SYSKT_CONF_DATA_2V5 (1 << 1) | |
615 | #define SYSKT_CONF_DATA_3V3 (1 << 0) | |
616 | ||
617 | static int syskt_probe(struct sdhci_pci_chip *chip) | |
618 | { | |
619 | if ((chip->pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) { | |
620 | chip->pdev->class &= ~0x0000FF; | |
621 | chip->pdev->class |= PCI_SDHCI_IFDMA; | |
622 | } | |
623 | return 0; | |
624 | } | |
625 | ||
626 | static int syskt_probe_slot(struct sdhci_pci_slot *slot) | |
627 | { | |
628 | int tm, ps; | |
629 | ||
630 | u8 board_rev = readb(slot->host->ioaddr + SYSKT_BOARD_REV); | |
631 | u8 chip_rev = readb(slot->host->ioaddr + SYSKT_CHIP_REV); | |
632 | dev_info(&slot->chip->pdev->dev, "SysKonnect CardBus2SDIO, " | |
633 | "board rev %d.%d, chip rev %d.%d\n", | |
634 | board_rev >> 4, board_rev & 0xf, | |
635 | chip_rev >> 4, chip_rev & 0xf); | |
636 | if (chip_rev >= 0x20) | |
637 | slot->host->quirks |= SDHCI_QUIRK_FORCE_DMA; | |
638 | ||
639 | writeb(SYSKT_POWER_330, slot->host->ioaddr + SYSKT_POWER_DATA); | |
640 | writeb(SYSKT_POWER_START, slot->host->ioaddr + SYSKT_POWER_CMD); | |
641 | udelay(50); | |
642 | tm = 10; /* Wait max 1 ms */ | |
643 | do { | |
644 | ps = readw(slot->host->ioaddr + SYSKT_POWER_STATUS); | |
645 | if (ps & SYSKT_POWER_STATUS_OK) | |
646 | break; | |
647 | udelay(100); | |
648 | } while (--tm); | |
649 | if (!tm) { | |
650 | dev_err(&slot->chip->pdev->dev, | |
651 | "power regulator never stabilized"); | |
652 | writeb(0, slot->host->ioaddr + SYSKT_POWER_CMD); | |
653 | return -ENODEV; | |
654 | } | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
659 | static const struct sdhci_pci_fixes sdhci_syskt = { | |
660 | .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER, | |
661 | .probe = syskt_probe, | |
662 | .probe_slot = syskt_probe_slot, | |
663 | }; | |
664 | ||
557b0697 HW |
665 | static int via_probe(struct sdhci_pci_chip *chip) |
666 | { | |
667 | if (chip->pdev->revision == 0x10) | |
668 | chip->quirks |= SDHCI_QUIRK_DELAY_AFTER_POWER; | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
673 | static const struct sdhci_pci_fixes sdhci_via = { | |
674 | .probe = via_probe, | |
675 | }; | |
676 | ||
22606405 | 677 | static const struct pci_device_id pci_ids[] __devinitdata = { |
b8c86fc5 PO |
678 | { |
679 | .vendor = PCI_VENDOR_ID_RICOH, | |
680 | .device = PCI_DEVICE_ID_RICOH_R5C822, | |
22606405 | 681 | .subvendor = PCI_ANY_ID, |
b8c86fc5 | 682 | .subdevice = PCI_ANY_ID, |
22606405 | 683 | .driver_data = (kernel_ulong_t)&sdhci_ricoh, |
b8c86fc5 PO |
684 | }, |
685 | ||
ccc92c23 ML |
686 | { |
687 | .vendor = PCI_VENDOR_ID_RICOH, | |
688 | .device = 0x843, | |
689 | .subvendor = PCI_ANY_ID, | |
690 | .subdevice = PCI_ANY_ID, | |
691 | .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, | |
692 | }, | |
693 | ||
568133eb PC |
694 | { |
695 | .vendor = PCI_VENDOR_ID_RICOH, | |
696 | .device = 0xe822, | |
697 | .subvendor = PCI_ANY_ID, | |
698 | .subdevice = PCI_ANY_ID, | |
699 | .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, | |
700 | }, | |
701 | ||
5fd11c07 MI |
702 | { |
703 | .vendor = PCI_VENDOR_ID_RICOH, | |
704 | .device = 0xe823, | |
705 | .subvendor = PCI_ANY_ID, | |
706 | .subdevice = PCI_ANY_ID, | |
707 | .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, | |
708 | }, | |
709 | ||
b8c86fc5 PO |
710 | { |
711 | .vendor = PCI_VENDOR_ID_ENE, | |
712 | .device = PCI_DEVICE_ID_ENE_CB712_SD, | |
713 | .subvendor = PCI_ANY_ID, | |
714 | .subdevice = PCI_ANY_ID, | |
22606405 | 715 | .driver_data = (kernel_ulong_t)&sdhci_ene_712, |
b8c86fc5 PO |
716 | }, |
717 | ||
718 | { | |
719 | .vendor = PCI_VENDOR_ID_ENE, | |
720 | .device = PCI_DEVICE_ID_ENE_CB712_SD_2, | |
721 | .subvendor = PCI_ANY_ID, | |
722 | .subdevice = PCI_ANY_ID, | |
22606405 | 723 | .driver_data = (kernel_ulong_t)&sdhci_ene_712, |
b8c86fc5 PO |
724 | }, |
725 | ||
726 | { | |
727 | .vendor = PCI_VENDOR_ID_ENE, | |
728 | .device = PCI_DEVICE_ID_ENE_CB714_SD, | |
729 | .subvendor = PCI_ANY_ID, | |
730 | .subdevice = PCI_ANY_ID, | |
22606405 | 731 | .driver_data = (kernel_ulong_t)&sdhci_ene_714, |
b8c86fc5 PO |
732 | }, |
733 | ||
734 | { | |
735 | .vendor = PCI_VENDOR_ID_ENE, | |
736 | .device = PCI_DEVICE_ID_ENE_CB714_SD_2, | |
737 | .subvendor = PCI_ANY_ID, | |
738 | .subdevice = PCI_ANY_ID, | |
22606405 | 739 | .driver_data = (kernel_ulong_t)&sdhci_ene_714, |
b8c86fc5 PO |
740 | }, |
741 | ||
742 | { | |
743 | .vendor = PCI_VENDOR_ID_MARVELL, | |
8c5eb880 | 744 | .device = PCI_DEVICE_ID_MARVELL_88ALP01_SD, |
b8c86fc5 PO |
745 | .subvendor = PCI_ANY_ID, |
746 | .subdevice = PCI_ANY_ID, | |
22606405 | 747 | .driver_data = (kernel_ulong_t)&sdhci_cafe, |
b8c86fc5 PO |
748 | }, |
749 | ||
750 | { | |
751 | .vendor = PCI_VENDOR_ID_JMICRON, | |
752 | .device = PCI_DEVICE_ID_JMICRON_JMB38X_SD, | |
753 | .subvendor = PCI_ANY_ID, | |
754 | .subdevice = PCI_ANY_ID, | |
22606405 | 755 | .driver_data = (kernel_ulong_t)&sdhci_jmicron, |
b8c86fc5 PO |
756 | }, |
757 | ||
4489428a PO |
758 | { |
759 | .vendor = PCI_VENDOR_ID_JMICRON, | |
760 | .device = PCI_DEVICE_ID_JMICRON_JMB38X_MMC, | |
761 | .subvendor = PCI_ANY_ID, | |
762 | .subdevice = PCI_ANY_ID, | |
763 | .driver_data = (kernel_ulong_t)&sdhci_jmicron, | |
8f230f45 TI |
764 | }, |
765 | ||
766 | { | |
767 | .vendor = PCI_VENDOR_ID_JMICRON, | |
768 | .device = PCI_DEVICE_ID_JMICRON_JMB388_SD, | |
769 | .subvendor = PCI_ANY_ID, | |
770 | .subdevice = PCI_ANY_ID, | |
771 | .driver_data = (kernel_ulong_t)&sdhci_jmicron, | |
772 | }, | |
773 | ||
774 | { | |
775 | .vendor = PCI_VENDOR_ID_JMICRON, | |
776 | .device = PCI_DEVICE_ID_JMICRON_JMB388_ESD, | |
777 | .subvendor = PCI_ANY_ID, | |
778 | .subdevice = PCI_ANY_ID, | |
779 | .driver_data = (kernel_ulong_t)&sdhci_jmicron, | |
4489428a PO |
780 | }, |
781 | ||
a7a6186c NP |
782 | { |
783 | .vendor = PCI_VENDOR_ID_SYSKONNECT, | |
784 | .device = 0x8000, | |
785 | .subvendor = PCI_ANY_ID, | |
786 | .subdevice = PCI_ANY_ID, | |
787 | .driver_data = (kernel_ulong_t)&sdhci_syskt, | |
788 | }, | |
789 | ||
557b0697 HW |
790 | { |
791 | .vendor = PCI_VENDOR_ID_VIA, | |
792 | .device = 0x95d0, | |
793 | .subvendor = PCI_ANY_ID, | |
794 | .subdevice = PCI_ANY_ID, | |
795 | .driver_data = (kernel_ulong_t)&sdhci_via, | |
796 | }, | |
797 | ||
29229052 XS |
798 | { |
799 | .vendor = PCI_VENDOR_ID_INTEL, | |
f9ee3eab AC |
800 | .device = PCI_DEVICE_ID_INTEL_MRST_SD0, |
801 | .subvendor = PCI_ANY_ID, | |
802 | .subdevice = PCI_ANY_ID, | |
803 | .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc0, | |
804 | }, | |
805 | ||
806 | { | |
807 | .vendor = PCI_VENDOR_ID_INTEL, | |
808 | .device = PCI_DEVICE_ID_INTEL_MRST_SD1, | |
809 | .subvendor = PCI_ANY_ID, | |
810 | .subdevice = PCI_ANY_ID, | |
35ac6f08 JP |
811 | .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2, |
812 | }, | |
813 | ||
814 | { | |
815 | .vendor = PCI_VENDOR_ID_INTEL, | |
816 | .device = PCI_DEVICE_ID_INTEL_MRST_SD2, | |
817 | .subvendor = PCI_ANY_ID, | |
818 | .subdevice = PCI_ANY_ID, | |
819 | .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2, | |
f9ee3eab AC |
820 | }, |
821 | ||
822 | { | |
823 | .vendor = PCI_VENDOR_ID_INTEL, | |
29229052 XS |
824 | .device = PCI_DEVICE_ID_INTEL_MFD_SD, |
825 | .subvendor = PCI_ANY_ID, | |
826 | .subdevice = PCI_ANY_ID, | |
827 | .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd, | |
828 | }, | |
829 | ||
830 | { | |
831 | .vendor = PCI_VENDOR_ID_INTEL, | |
832 | .device = PCI_DEVICE_ID_INTEL_MFD_SDIO1, | |
833 | .subvendor = PCI_ANY_ID, | |
834 | .subdevice = PCI_ANY_ID, | |
0d013bcf | 835 | .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, |
29229052 XS |
836 | }, |
837 | ||
838 | { | |
839 | .vendor = PCI_VENDOR_ID_INTEL, | |
840 | .device = PCI_DEVICE_ID_INTEL_MFD_SDIO2, | |
841 | .subvendor = PCI_ANY_ID, | |
842 | .subdevice = PCI_ANY_ID, | |
0d013bcf | 843 | .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, |
29229052 XS |
844 | }, |
845 | ||
846 | { | |
847 | .vendor = PCI_VENDOR_ID_INTEL, | |
848 | .device = PCI_DEVICE_ID_INTEL_MFD_EMMC0, | |
849 | .subvendor = PCI_ANY_ID, | |
850 | .subdevice = PCI_ANY_ID, | |
0d013bcf | 851 | .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, |
29229052 XS |
852 | }, |
853 | ||
854 | { | |
855 | .vendor = PCI_VENDOR_ID_INTEL, | |
856 | .device = PCI_DEVICE_ID_INTEL_MFD_EMMC1, | |
857 | .subvendor = PCI_ANY_ID, | |
858 | .subdevice = PCI_ANY_ID, | |
0d013bcf | 859 | .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, |
29229052 XS |
860 | }, |
861 | ||
26daa1ed JL |
862 | { |
863 | .vendor = PCI_VENDOR_ID_O2, | |
864 | .device = PCI_DEVICE_ID_O2_8120, | |
865 | .subvendor = PCI_ANY_ID, | |
866 | .subdevice = PCI_ANY_ID, | |
867 | .driver_data = (kernel_ulong_t)&sdhci_o2, | |
868 | }, | |
869 | ||
870 | { | |
871 | .vendor = PCI_VENDOR_ID_O2, | |
872 | .device = PCI_DEVICE_ID_O2_8220, | |
873 | .subvendor = PCI_ANY_ID, | |
874 | .subdevice = PCI_ANY_ID, | |
875 | .driver_data = (kernel_ulong_t)&sdhci_o2, | |
876 | }, | |
877 | ||
878 | { | |
879 | .vendor = PCI_VENDOR_ID_O2, | |
880 | .device = PCI_DEVICE_ID_O2_8221, | |
881 | .subvendor = PCI_ANY_ID, | |
882 | .subdevice = PCI_ANY_ID, | |
883 | .driver_data = (kernel_ulong_t)&sdhci_o2, | |
884 | }, | |
885 | ||
886 | { | |
887 | .vendor = PCI_VENDOR_ID_O2, | |
888 | .device = PCI_DEVICE_ID_O2_8320, | |
889 | .subvendor = PCI_ANY_ID, | |
890 | .subdevice = PCI_ANY_ID, | |
891 | .driver_data = (kernel_ulong_t)&sdhci_o2, | |
892 | }, | |
893 | ||
894 | { | |
895 | .vendor = PCI_VENDOR_ID_O2, | |
896 | .device = PCI_DEVICE_ID_O2_8321, | |
897 | .subvendor = PCI_ANY_ID, | |
898 | .subdevice = PCI_ANY_ID, | |
899 | .driver_data = (kernel_ulong_t)&sdhci_o2, | |
900 | }, | |
901 | ||
b8c86fc5 PO |
902 | { /* Generic SD host controller */ |
903 | PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00) | |
904 | }, | |
905 | ||
906 | { /* end: all zeroes */ }, | |
907 | }; | |
908 | ||
909 | MODULE_DEVICE_TABLE(pci, pci_ids); | |
910 | ||
b8c86fc5 PO |
911 | /*****************************************************************************\ |
912 | * * | |
913 | * SDHCI core callbacks * | |
914 | * * | |
915 | \*****************************************************************************/ | |
916 | ||
917 | static int sdhci_pci_enable_dma(struct sdhci_host *host) | |
918 | { | |
919 | struct sdhci_pci_slot *slot; | |
920 | struct pci_dev *pdev; | |
921 | int ret; | |
922 | ||
923 | slot = sdhci_priv(host); | |
924 | pdev = slot->chip->pdev; | |
925 | ||
926 | if (((pdev->class & 0xFFFF00) == (PCI_CLASS_SYSTEM_SDHCI << 8)) && | |
927 | ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA) && | |
a13abc7b | 928 | (host->flags & SDHCI_USE_SDMA)) { |
b8c86fc5 PO |
929 | dev_warn(&pdev->dev, "Will use DMA mode even though HW " |
930 | "doesn't fully claim to support it.\n"); | |
931 | } | |
932 | ||
284901a9 | 933 | ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
b8c86fc5 PO |
934 | if (ret) |
935 | return ret; | |
936 | ||
937 | pci_set_master(pdev); | |
938 | ||
939 | return 0; | |
940 | } | |
941 | ||
68077b02 ML |
942 | static int sdhci_pci_8bit_width(struct sdhci_host *host, int width) |
943 | { | |
944 | u8 ctrl; | |
945 | ||
946 | ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); | |
947 | ||
948 | switch (width) { | |
949 | case MMC_BUS_WIDTH_8: | |
950 | ctrl |= SDHCI_CTRL_8BITBUS; | |
951 | ctrl &= ~SDHCI_CTRL_4BITBUS; | |
952 | break; | |
953 | case MMC_BUS_WIDTH_4: | |
954 | ctrl |= SDHCI_CTRL_4BITBUS; | |
955 | ctrl &= ~SDHCI_CTRL_8BITBUS; | |
956 | break; | |
957 | default: | |
958 | ctrl &= ~(SDHCI_CTRL_8BITBUS | SDHCI_CTRL_4BITBUS); | |
959 | break; | |
960 | } | |
961 | ||
962 | sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); | |
963 | ||
964 | return 0; | |
965 | } | |
966 | ||
0f201655 AH |
967 | static void sdhci_pci_hw_reset(struct sdhci_host *host) |
968 | { | |
969 | struct sdhci_pci_slot *slot = sdhci_priv(host); | |
970 | int rst_n_gpio = slot->rst_n_gpio; | |
971 | ||
972 | if (!gpio_is_valid(rst_n_gpio)) | |
973 | return; | |
974 | gpio_set_value_cansleep(rst_n_gpio, 0); | |
975 | /* For eMMC, minimum is 1us but give it 10us for good measure */ | |
976 | udelay(10); | |
977 | gpio_set_value_cansleep(rst_n_gpio, 1); | |
978 | /* For eMMC, minimum is 200us but give it 300us for good measure */ | |
979 | usleep_range(300, 1000); | |
980 | } | |
981 | ||
b8c86fc5 PO |
982 | static struct sdhci_ops sdhci_pci_ops = { |
983 | .enable_dma = sdhci_pci_enable_dma, | |
68077b02 | 984 | .platform_8bit_width = sdhci_pci_8bit_width, |
0f201655 | 985 | .hw_reset = sdhci_pci_hw_reset, |
b8c86fc5 PO |
986 | }; |
987 | ||
988 | /*****************************************************************************\ | |
989 | * * | |
990 | * Suspend/resume * | |
991 | * * | |
992 | \*****************************************************************************/ | |
993 | ||
994 | #ifdef CONFIG_PM | |
995 | ||
b177bc91 | 996 | static int sdhci_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b8c86fc5 PO |
997 | { |
998 | struct sdhci_pci_chip *chip; | |
999 | struct sdhci_pci_slot *slot; | |
5f619704 | 1000 | mmc_pm_flag_t slot_pm_flags; |
2f4cbb3d | 1001 | mmc_pm_flag_t pm_flags = 0; |
b8c86fc5 PO |
1002 | int i, ret; |
1003 | ||
1004 | chip = pci_get_drvdata(pdev); | |
1005 | if (!chip) | |
1006 | return 0; | |
1007 | ||
b177bc91 | 1008 | for (i = 0; i < chip->num_slots; i++) { |
b8c86fc5 PO |
1009 | slot = chip->slots[i]; |
1010 | if (!slot) | |
1011 | continue; | |
1012 | ||
1013 | ret = sdhci_suspend_host(slot->host, state); | |
1014 | ||
1015 | if (ret) { | |
b177bc91 | 1016 | for (i--; i >= 0; i--) |
b8c86fc5 PO |
1017 | sdhci_resume_host(chip->slots[i]->host); |
1018 | return ret; | |
1019 | } | |
2f4cbb3d | 1020 | |
5f619704 DD |
1021 | slot_pm_flags = slot->host->mmc->pm_flags; |
1022 | if (slot_pm_flags & MMC_PM_WAKE_SDIO_IRQ) | |
1023 | sdhci_enable_irq_wakeups(slot->host); | |
1024 | ||
1025 | pm_flags |= slot_pm_flags; | |
b8c86fc5 PO |
1026 | } |
1027 | ||
4489428a PO |
1028 | if (chip->fixes && chip->fixes->suspend) { |
1029 | ret = chip->fixes->suspend(chip, state); | |
1030 | if (ret) { | |
b177bc91 | 1031 | for (i = chip->num_slots - 1; i >= 0; i--) |
4489428a PO |
1032 | sdhci_resume_host(chip->slots[i]->host); |
1033 | return ret; | |
1034 | } | |
1035 | } | |
1036 | ||
b8c86fc5 | 1037 | pci_save_state(pdev); |
2f4cbb3d | 1038 | if (pm_flags & MMC_PM_KEEP_POWER) { |
5f619704 DD |
1039 | if (pm_flags & MMC_PM_WAKE_SDIO_IRQ) { |
1040 | pci_pme_active(pdev, true); | |
2f4cbb3d | 1041 | pci_enable_wake(pdev, PCI_D3hot, 1); |
5f619704 | 1042 | } |
2f4cbb3d NP |
1043 | pci_set_power_state(pdev, PCI_D3hot); |
1044 | } else { | |
1045 | pci_enable_wake(pdev, pci_choose_state(pdev, state), 0); | |
1046 | pci_disable_device(pdev); | |
1047 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1048 | } | |
b8c86fc5 PO |
1049 | |
1050 | return 0; | |
1051 | } | |
1052 | ||
b177bc91 | 1053 | static int sdhci_pci_resume(struct pci_dev *pdev) |
b8c86fc5 PO |
1054 | { |
1055 | struct sdhci_pci_chip *chip; | |
1056 | struct sdhci_pci_slot *slot; | |
1057 | int i, ret; | |
1058 | ||
1059 | chip = pci_get_drvdata(pdev); | |
1060 | if (!chip) | |
1061 | return 0; | |
1062 | ||
1063 | pci_set_power_state(pdev, PCI_D0); | |
1064 | pci_restore_state(pdev); | |
1065 | ret = pci_enable_device(pdev); | |
1066 | if (ret) | |
1067 | return ret; | |
1068 | ||
45211e21 PO |
1069 | if (chip->fixes && chip->fixes->resume) { |
1070 | ret = chip->fixes->resume(chip); | |
1071 | if (ret) | |
1072 | return ret; | |
1073 | } | |
1074 | ||
b177bc91 | 1075 | for (i = 0; i < chip->num_slots; i++) { |
b8c86fc5 PO |
1076 | slot = chip->slots[i]; |
1077 | if (!slot) | |
1078 | continue; | |
1079 | ||
1080 | ret = sdhci_resume_host(slot->host); | |
1081 | if (ret) | |
1082 | return ret; | |
1083 | } | |
1084 | ||
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | #else /* CONFIG_PM */ | |
1089 | ||
1090 | #define sdhci_pci_suspend NULL | |
1091 | #define sdhci_pci_resume NULL | |
1092 | ||
1093 | #endif /* CONFIG_PM */ | |
1094 | ||
66fd8ad5 AH |
1095 | #ifdef CONFIG_PM_RUNTIME |
1096 | ||
1097 | static int sdhci_pci_runtime_suspend(struct device *dev) | |
1098 | { | |
1099 | struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); | |
1100 | struct sdhci_pci_chip *chip; | |
1101 | struct sdhci_pci_slot *slot; | |
1102 | pm_message_t state = { .event = PM_EVENT_SUSPEND }; | |
1103 | int i, ret; | |
1104 | ||
1105 | chip = pci_get_drvdata(pdev); | |
1106 | if (!chip) | |
1107 | return 0; | |
1108 | ||
1109 | for (i = 0; i < chip->num_slots; i++) { | |
1110 | slot = chip->slots[i]; | |
1111 | if (!slot) | |
1112 | continue; | |
1113 | ||
1114 | ret = sdhci_runtime_suspend_host(slot->host); | |
1115 | ||
1116 | if (ret) { | |
1117 | for (i--; i >= 0; i--) | |
1118 | sdhci_runtime_resume_host(chip->slots[i]->host); | |
1119 | return ret; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | if (chip->fixes && chip->fixes->suspend) { | |
1124 | ret = chip->fixes->suspend(chip, state); | |
1125 | if (ret) { | |
1126 | for (i = chip->num_slots - 1; i >= 0; i--) | |
1127 | sdhci_runtime_resume_host(chip->slots[i]->host); | |
1128 | return ret; | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | static int sdhci_pci_runtime_resume(struct device *dev) | |
1136 | { | |
1137 | struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); | |
1138 | struct sdhci_pci_chip *chip; | |
1139 | struct sdhci_pci_slot *slot; | |
1140 | int i, ret; | |
1141 | ||
1142 | chip = pci_get_drvdata(pdev); | |
1143 | if (!chip) | |
1144 | return 0; | |
1145 | ||
1146 | if (chip->fixes && chip->fixes->resume) { | |
1147 | ret = chip->fixes->resume(chip); | |
1148 | if (ret) | |
1149 | return ret; | |
1150 | } | |
1151 | ||
1152 | for (i = 0; i < chip->num_slots; i++) { | |
1153 | slot = chip->slots[i]; | |
1154 | if (!slot) | |
1155 | continue; | |
1156 | ||
1157 | ret = sdhci_runtime_resume_host(slot->host); | |
1158 | if (ret) | |
1159 | return ret; | |
1160 | } | |
1161 | ||
1162 | return 0; | |
1163 | } | |
1164 | ||
1165 | static int sdhci_pci_runtime_idle(struct device *dev) | |
1166 | { | |
1167 | return 0; | |
1168 | } | |
1169 | ||
1170 | #else | |
1171 | ||
1172 | #define sdhci_pci_runtime_suspend NULL | |
1173 | #define sdhci_pci_runtime_resume NULL | |
1174 | #define sdhci_pci_runtime_idle NULL | |
1175 | ||
1176 | #endif | |
1177 | ||
1178 | static const struct dev_pm_ops sdhci_pci_pm_ops = { | |
1179 | .runtime_suspend = sdhci_pci_runtime_suspend, | |
1180 | .runtime_resume = sdhci_pci_runtime_resume, | |
1181 | .runtime_idle = sdhci_pci_runtime_idle, | |
1182 | }; | |
1183 | ||
b8c86fc5 PO |
1184 | /*****************************************************************************\ |
1185 | * * | |
1186 | * Device probing/removal * | |
1187 | * * | |
1188 | \*****************************************************************************/ | |
1189 | ||
1190 | static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot( | |
1191 | struct pci_dev *pdev, struct sdhci_pci_chip *chip, int bar) | |
1192 | { | |
1193 | struct sdhci_pci_slot *slot; | |
1194 | struct sdhci_host *host; | |
b8c86fc5 PO |
1195 | int ret; |
1196 | ||
1197 | if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) { | |
1198 | dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar); | |
1199 | return ERR_PTR(-ENODEV); | |
1200 | } | |
1201 | ||
1202 | if (pci_resource_len(pdev, bar) != 0x100) { | |
1203 | dev_err(&pdev->dev, "Invalid iomem size. You may " | |
1204 | "experience problems.\n"); | |
1205 | } | |
1206 | ||
1207 | if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) { | |
1208 | dev_err(&pdev->dev, "Vendor specific interface. Aborting.\n"); | |
1209 | return ERR_PTR(-ENODEV); | |
1210 | } | |
1211 | ||
1212 | if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) { | |
1213 | dev_err(&pdev->dev, "Unknown interface. Aborting.\n"); | |
1214 | return ERR_PTR(-ENODEV); | |
1215 | } | |
1216 | ||
1217 | host = sdhci_alloc_host(&pdev->dev, sizeof(struct sdhci_pci_slot)); | |
1218 | if (IS_ERR(host)) { | |
c60a32cd | 1219 | dev_err(&pdev->dev, "cannot allocate host\n"); |
dc0fd7b5 | 1220 | return ERR_CAST(host); |
b8c86fc5 PO |
1221 | } |
1222 | ||
1223 | slot = sdhci_priv(host); | |
1224 | ||
1225 | slot->chip = chip; | |
1226 | slot->host = host; | |
1227 | slot->pci_bar = bar; | |
0f201655 | 1228 | slot->rst_n_gpio = -EINVAL; |
b8c86fc5 PO |
1229 | |
1230 | host->hw_name = "PCI"; | |
1231 | host->ops = &sdhci_pci_ops; | |
1232 | host->quirks = chip->quirks; | |
1233 | ||
1234 | host->irq = pdev->irq; | |
1235 | ||
1236 | ret = pci_request_region(pdev, bar, mmc_hostname(host->mmc)); | |
1237 | if (ret) { | |
1238 | dev_err(&pdev->dev, "cannot request region\n"); | |
c60a32cd | 1239 | goto free; |
b8c86fc5 PO |
1240 | } |
1241 | ||
092f82ed | 1242 | host->ioaddr = pci_ioremap_bar(pdev, bar); |
b8c86fc5 PO |
1243 | if (!host->ioaddr) { |
1244 | dev_err(&pdev->dev, "failed to remap registers\n"); | |
9fdcdbb0 | 1245 | ret = -ENOMEM; |
b8c86fc5 PO |
1246 | goto release; |
1247 | } | |
1248 | ||
4489428a PO |
1249 | if (chip->fixes && chip->fixes->probe_slot) { |
1250 | ret = chip->fixes->probe_slot(slot); | |
1251 | if (ret) | |
1252 | goto unmap; | |
1253 | } | |
1254 | ||
2f4cbb3d NP |
1255 | host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ; |
1256 | ||
b8c86fc5 PO |
1257 | ret = sdhci_add_host(host); |
1258 | if (ret) | |
4489428a | 1259 | goto remove; |
b8c86fc5 PO |
1260 | |
1261 | return slot; | |
1262 | ||
4489428a PO |
1263 | remove: |
1264 | if (chip->fixes && chip->fixes->remove_slot) | |
1e72859e | 1265 | chip->fixes->remove_slot(slot, 0); |
4489428a | 1266 | |
b8c86fc5 PO |
1267 | unmap: |
1268 | iounmap(host->ioaddr); | |
1269 | ||
1270 | release: | |
1271 | pci_release_region(pdev, bar); | |
c60a32cd DC |
1272 | |
1273 | free: | |
b8c86fc5 PO |
1274 | sdhci_free_host(host); |
1275 | ||
1276 | return ERR_PTR(ret); | |
1277 | } | |
1278 | ||
1279 | static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot) | |
1280 | { | |
1e72859e PO |
1281 | int dead; |
1282 | u32 scratch; | |
1283 | ||
1284 | dead = 0; | |
1285 | scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS); | |
1286 | if (scratch == (u32)-1) | |
1287 | dead = 1; | |
1288 | ||
1289 | sdhci_remove_host(slot->host, dead); | |
4489428a PO |
1290 | |
1291 | if (slot->chip->fixes && slot->chip->fixes->remove_slot) | |
1e72859e | 1292 | slot->chip->fixes->remove_slot(slot, dead); |
4489428a | 1293 | |
b8c86fc5 | 1294 | pci_release_region(slot->chip->pdev, slot->pci_bar); |
4489428a | 1295 | |
b8c86fc5 PO |
1296 | sdhci_free_host(slot->host); |
1297 | } | |
1298 | ||
66fd8ad5 AH |
1299 | static void __devinit sdhci_pci_runtime_pm_allow(struct device *dev) |
1300 | { | |
1301 | pm_runtime_put_noidle(dev); | |
1302 | pm_runtime_allow(dev); | |
1303 | pm_runtime_set_autosuspend_delay(dev, 50); | |
1304 | pm_runtime_use_autosuspend(dev); | |
1305 | pm_suspend_ignore_children(dev, 1); | |
1306 | } | |
1307 | ||
1308 | static void __devexit sdhci_pci_runtime_pm_forbid(struct device *dev) | |
1309 | { | |
1310 | pm_runtime_forbid(dev); | |
1311 | pm_runtime_get_noresume(dev); | |
1312 | } | |
1313 | ||
b8c86fc5 PO |
1314 | static int __devinit sdhci_pci_probe(struct pci_dev *pdev, |
1315 | const struct pci_device_id *ent) | |
1316 | { | |
1317 | struct sdhci_pci_chip *chip; | |
1318 | struct sdhci_pci_slot *slot; | |
1319 | ||
cf5e23e1 | 1320 | u8 slots, first_bar; |
b8c86fc5 PO |
1321 | int ret, i; |
1322 | ||
1323 | BUG_ON(pdev == NULL); | |
1324 | BUG_ON(ent == NULL); | |
1325 | ||
b8c86fc5 | 1326 | dev_info(&pdev->dev, "SDHCI controller found [%04x:%04x] (rev %x)\n", |
cf5e23e1 | 1327 | (int)pdev->vendor, (int)pdev->device, (int)pdev->revision); |
b8c86fc5 PO |
1328 | |
1329 | ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots); | |
1330 | if (ret) | |
1331 | return ret; | |
1332 | ||
1333 | slots = PCI_SLOT_INFO_SLOTS(slots) + 1; | |
1334 | dev_dbg(&pdev->dev, "found %d slot(s)\n", slots); | |
1335 | if (slots == 0) | |
1336 | return -ENODEV; | |
1337 | ||
1338 | BUG_ON(slots > MAX_SLOTS); | |
1339 | ||
1340 | ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar); | |
1341 | if (ret) | |
1342 | return ret; | |
1343 | ||
1344 | first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK; | |
1345 | ||
1346 | if (first_bar > 5) { | |
1347 | dev_err(&pdev->dev, "Invalid first BAR. Aborting.\n"); | |
1348 | return -ENODEV; | |
1349 | } | |
1350 | ||
1351 | ret = pci_enable_device(pdev); | |
1352 | if (ret) | |
1353 | return ret; | |
1354 | ||
1355 | chip = kzalloc(sizeof(struct sdhci_pci_chip), GFP_KERNEL); | |
1356 | if (!chip) { | |
1357 | ret = -ENOMEM; | |
1358 | goto err; | |
1359 | } | |
1360 | ||
1361 | chip->pdev = pdev; | |
b177bc91 | 1362 | chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data; |
c43fd774 | 1363 | if (chip->fixes) { |
22606405 | 1364 | chip->quirks = chip->fixes->quirks; |
c43fd774 AH |
1365 | chip->allow_runtime_pm = chip->fixes->allow_runtime_pm; |
1366 | } | |
b8c86fc5 PO |
1367 | chip->num_slots = slots; |
1368 | ||
1369 | pci_set_drvdata(pdev, chip); | |
1370 | ||
22606405 PO |
1371 | if (chip->fixes && chip->fixes->probe) { |
1372 | ret = chip->fixes->probe(chip); | |
1373 | if (ret) | |
1374 | goto free; | |
1375 | } | |
1376 | ||
225d85fe AC |
1377 | slots = chip->num_slots; /* Quirk may have changed this */ |
1378 | ||
b177bc91 | 1379 | for (i = 0; i < slots; i++) { |
b8c86fc5 PO |
1380 | slot = sdhci_pci_probe_slot(pdev, chip, first_bar + i); |
1381 | if (IS_ERR(slot)) { | |
b177bc91 | 1382 | for (i--; i >= 0; i--) |
b8c86fc5 PO |
1383 | sdhci_pci_remove_slot(chip->slots[i]); |
1384 | ret = PTR_ERR(slot); | |
1385 | goto free; | |
1386 | } | |
1387 | ||
1388 | chip->slots[i] = slot; | |
1389 | } | |
1390 | ||
c43fd774 AH |
1391 | if (chip->allow_runtime_pm) |
1392 | sdhci_pci_runtime_pm_allow(&pdev->dev); | |
66fd8ad5 | 1393 | |
b8c86fc5 PO |
1394 | return 0; |
1395 | ||
1396 | free: | |
1397 | pci_set_drvdata(pdev, NULL); | |
1398 | kfree(chip); | |
1399 | ||
1400 | err: | |
1401 | pci_disable_device(pdev); | |
1402 | return ret; | |
1403 | } | |
1404 | ||
1405 | static void __devexit sdhci_pci_remove(struct pci_dev *pdev) | |
1406 | { | |
1407 | int i; | |
1408 | struct sdhci_pci_chip *chip; | |
1409 | ||
1410 | chip = pci_get_drvdata(pdev); | |
1411 | ||
1412 | if (chip) { | |
c43fd774 AH |
1413 | if (chip->allow_runtime_pm) |
1414 | sdhci_pci_runtime_pm_forbid(&pdev->dev); | |
1415 | ||
b177bc91 | 1416 | for (i = 0; i < chip->num_slots; i++) |
b8c86fc5 PO |
1417 | sdhci_pci_remove_slot(chip->slots[i]); |
1418 | ||
1419 | pci_set_drvdata(pdev, NULL); | |
1420 | kfree(chip); | |
1421 | } | |
1422 | ||
1423 | pci_disable_device(pdev); | |
1424 | } | |
1425 | ||
1426 | static struct pci_driver sdhci_driver = { | |
b177bc91 | 1427 | .name = "sdhci-pci", |
b8c86fc5 | 1428 | .id_table = pci_ids, |
b177bc91 | 1429 | .probe = sdhci_pci_probe, |
b8c86fc5 PO |
1430 | .remove = __devexit_p(sdhci_pci_remove), |
1431 | .suspend = sdhci_pci_suspend, | |
1432 | .resume = sdhci_pci_resume, | |
66fd8ad5 AH |
1433 | .driver = { |
1434 | .pm = &sdhci_pci_pm_ops | |
1435 | }, | |
b8c86fc5 PO |
1436 | }; |
1437 | ||
1438 | /*****************************************************************************\ | |
1439 | * * | |
1440 | * Driver init/exit * | |
1441 | * * | |
1442 | \*****************************************************************************/ | |
1443 | ||
1444 | static int __init sdhci_drv_init(void) | |
1445 | { | |
1446 | return pci_register_driver(&sdhci_driver); | |
1447 | } | |
1448 | ||
1449 | static void __exit sdhci_drv_exit(void) | |
1450 | { | |
1451 | pci_unregister_driver(&sdhci_driver); | |
1452 | } | |
1453 | ||
1454 | module_init(sdhci_drv_init); | |
1455 | module_exit(sdhci_drv_exit); | |
1456 | ||
32710e8f | 1457 | MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>"); |
b8c86fc5 PO |
1458 | MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver"); |
1459 | MODULE_LICENSE("GPL"); |