12874c5fdSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2659c9bc1SBen Hutchings /* linux/drivers/mmc/host/sdhci-pci.c - SDHCI on PCI bus interface 3659c9bc1SBen Hutchings * 4659c9bc1SBen Hutchings * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved. 5659c9bc1SBen Hutchings * 6659c9bc1SBen Hutchings * Thanks to the following companies for their support: 7659c9bc1SBen Hutchings * 8659c9bc1SBen Hutchings * - JMicron (hardware and technical support) 9659c9bc1SBen Hutchings */ 10659c9bc1SBen Hutchings 115305ec6aSAdrian Hunter #include <linux/bitfield.h> 12a72016a4SAdrian Hunter #include <linux/string.h> 13659c9bc1SBen Hutchings #include <linux/delay.h> 14659c9bc1SBen Hutchings #include <linux/highmem.h> 15659c9bc1SBen Hutchings #include <linux/module.h> 16659c9bc1SBen Hutchings #include <linux/pci.h> 17659c9bc1SBen Hutchings #include <linux/dma-mapping.h> 18659c9bc1SBen Hutchings #include <linux/slab.h> 19659c9bc1SBen Hutchings #include <linux/device.h> 20659c9bc1SBen Hutchings #include <linux/mmc/host.h> 21659c9bc1SBen Hutchings #include <linux/mmc/mmc.h> 22659c9bc1SBen Hutchings #include <linux/scatterlist.h> 23659c9bc1SBen Hutchings #include <linux/io.h> 24659c9bc1SBen Hutchings #include <linux/gpio.h> 25659c9bc1SBen Hutchings #include <linux/pm_runtime.h> 26659c9bc1SBen Hutchings #include <linux/mmc/slot-gpio.h> 27659c9bc1SBen Hutchings #include <linux/mmc/sdhci-pci-data.h> 283f23df72SZach Brown #include <linux/acpi.h> 29659c9bc1SBen Hutchings 300a49a619SAdrian Hunter #ifdef CONFIG_X86 310a49a619SAdrian Hunter #include <asm/iosf_mbi.h> 320a49a619SAdrian Hunter #endif 330a49a619SAdrian Hunter 348ee82bdaSAdrian Hunter #include "cqhci.h" 358ee82bdaSAdrian Hunter 36659c9bc1SBen Hutchings #include "sdhci.h" 37659c9bc1SBen Hutchings #include "sdhci-pci.h" 38659c9bc1SBen Hutchings 39fee686b7SAdrian Hunter static void sdhci_pci_hw_reset(struct sdhci_host *host); 40fee686b7SAdrian Hunter 4130cf2803SAdrian Hunter #ifdef CONFIG_PM_SLEEP 4230cf2803SAdrian Hunter static int sdhci_pci_init_wakeup(struct sdhci_pci_chip *chip) 4330cf2803SAdrian Hunter { 4430cf2803SAdrian Hunter mmc_pm_flag_t pm_flags = 0; 45d56ee1ffSAdrian Hunter bool cap_cd_wake = false; 4630cf2803SAdrian Hunter int i; 4730cf2803SAdrian Hunter 4830cf2803SAdrian Hunter for (i = 0; i < chip->num_slots; i++) { 4930cf2803SAdrian Hunter struct sdhci_pci_slot *slot = chip->slots[i]; 5030cf2803SAdrian Hunter 51d56ee1ffSAdrian Hunter if (slot) { 5230cf2803SAdrian Hunter pm_flags |= slot->host->mmc->pm_flags; 53d56ee1ffSAdrian Hunter if (slot->host->mmc->caps & MMC_CAP_CD_WAKE) 54d56ee1ffSAdrian Hunter cap_cd_wake = true; 55d56ee1ffSAdrian Hunter } 5630cf2803SAdrian Hunter } 5730cf2803SAdrian Hunter 58d56ee1ffSAdrian Hunter if ((pm_flags & MMC_PM_KEEP_POWER) && (pm_flags & MMC_PM_WAKE_SDIO_IRQ)) 59d56ee1ffSAdrian Hunter return device_wakeup_enable(&chip->pdev->dev); 60d56ee1ffSAdrian Hunter else if (!cap_cd_wake) 61d56ee1ffSAdrian Hunter return device_wakeup_disable(&chip->pdev->dev); 62d56ee1ffSAdrian Hunter 63d56ee1ffSAdrian Hunter return 0; 6430cf2803SAdrian Hunter } 6530cf2803SAdrian Hunter 6630cf2803SAdrian Hunter static int sdhci_pci_suspend_host(struct sdhci_pci_chip *chip) 6730cf2803SAdrian Hunter { 685c3c6126SAdrian Hunter int i, ret; 6930cf2803SAdrian Hunter 7030cf2803SAdrian Hunter sdhci_pci_init_wakeup(chip); 7130cf2803SAdrian Hunter 725c3c6126SAdrian Hunter for (i = 0; i < chip->num_slots; i++) { 735c3c6126SAdrian Hunter struct sdhci_pci_slot *slot = chip->slots[i]; 745c3c6126SAdrian Hunter struct sdhci_host *host; 755c3c6126SAdrian Hunter 765c3c6126SAdrian Hunter if (!slot) 775c3c6126SAdrian Hunter continue; 785c3c6126SAdrian Hunter 795c3c6126SAdrian Hunter host = slot->host; 805c3c6126SAdrian Hunter 815c3c6126SAdrian Hunter if (chip->pm_retune && host->tuning_mode != SDHCI_TUNING_MODE_3) 825c3c6126SAdrian Hunter mmc_retune_needed(host->mmc); 835c3c6126SAdrian Hunter 845c3c6126SAdrian Hunter ret = sdhci_suspend_host(host); 855c3c6126SAdrian Hunter if (ret) 865c3c6126SAdrian Hunter goto err_pci_suspend; 87d56ee1ffSAdrian Hunter 88d56ee1ffSAdrian Hunter if (device_may_wakeup(&chip->pdev->dev)) 89d56ee1ffSAdrian Hunter mmc_gpio_set_cd_wake(host->mmc, true); 905c3c6126SAdrian Hunter } 915c3c6126SAdrian Hunter 9230cf2803SAdrian Hunter return 0; 935c3c6126SAdrian Hunter 945c3c6126SAdrian Hunter err_pci_suspend: 955c3c6126SAdrian Hunter while (--i >= 0) 965c3c6126SAdrian Hunter sdhci_resume_host(chip->slots[i]->host); 975c3c6126SAdrian Hunter return ret; 9830cf2803SAdrian Hunter } 9930cf2803SAdrian Hunter 10030cf2803SAdrian Hunter int sdhci_pci_resume_host(struct sdhci_pci_chip *chip) 10130cf2803SAdrian Hunter { 10230cf2803SAdrian Hunter struct sdhci_pci_slot *slot; 10330cf2803SAdrian Hunter int i, ret; 10430cf2803SAdrian Hunter 10530cf2803SAdrian Hunter for (i = 0; i < chip->num_slots; i++) { 10630cf2803SAdrian Hunter slot = chip->slots[i]; 10730cf2803SAdrian Hunter if (!slot) 10830cf2803SAdrian Hunter continue; 10930cf2803SAdrian Hunter 11030cf2803SAdrian Hunter ret = sdhci_resume_host(slot->host); 11130cf2803SAdrian Hunter if (ret) 11230cf2803SAdrian Hunter return ret; 113d56ee1ffSAdrian Hunter 114d56ee1ffSAdrian Hunter mmc_gpio_set_cd_wake(slot->host->mmc, false); 11530cf2803SAdrian Hunter } 11630cf2803SAdrian Hunter 11730cf2803SAdrian Hunter return 0; 11830cf2803SAdrian Hunter } 1198ee82bdaSAdrian Hunter 1208ee82bdaSAdrian Hunter static int sdhci_cqhci_suspend(struct sdhci_pci_chip *chip) 1218ee82bdaSAdrian Hunter { 1228ee82bdaSAdrian Hunter int ret; 1238ee82bdaSAdrian Hunter 1248ee82bdaSAdrian Hunter ret = cqhci_suspend(chip->slots[0]->host->mmc); 1258ee82bdaSAdrian Hunter if (ret) 1268ee82bdaSAdrian Hunter return ret; 1278ee82bdaSAdrian Hunter 1288ee82bdaSAdrian Hunter return sdhci_pci_suspend_host(chip); 1298ee82bdaSAdrian Hunter } 1308ee82bdaSAdrian Hunter 1318ee82bdaSAdrian Hunter static int sdhci_cqhci_resume(struct sdhci_pci_chip *chip) 1328ee82bdaSAdrian Hunter { 1338ee82bdaSAdrian Hunter int ret; 1348ee82bdaSAdrian Hunter 1358ee82bdaSAdrian Hunter ret = sdhci_pci_resume_host(chip); 1368ee82bdaSAdrian Hunter if (ret) 1378ee82bdaSAdrian Hunter return ret; 1388ee82bdaSAdrian Hunter 1398ee82bdaSAdrian Hunter return cqhci_resume(chip->slots[0]->host->mmc); 1408ee82bdaSAdrian Hunter } 14130cf2803SAdrian Hunter #endif 14230cf2803SAdrian Hunter 143966d696aSAdrian Hunter #ifdef CONFIG_PM 144966d696aSAdrian Hunter static int sdhci_pci_runtime_suspend_host(struct sdhci_pci_chip *chip) 145966d696aSAdrian Hunter { 146966d696aSAdrian Hunter struct sdhci_pci_slot *slot; 147966d696aSAdrian Hunter struct sdhci_host *host; 148966d696aSAdrian Hunter int i, ret; 149966d696aSAdrian Hunter 150966d696aSAdrian Hunter for (i = 0; i < chip->num_slots; i++) { 151966d696aSAdrian Hunter slot = chip->slots[i]; 152966d696aSAdrian Hunter if (!slot) 153966d696aSAdrian Hunter continue; 154966d696aSAdrian Hunter 155966d696aSAdrian Hunter host = slot->host; 156966d696aSAdrian Hunter 157966d696aSAdrian Hunter ret = sdhci_runtime_suspend_host(host); 158966d696aSAdrian Hunter if (ret) 159966d696aSAdrian Hunter goto err_pci_runtime_suspend; 160966d696aSAdrian Hunter 161966d696aSAdrian Hunter if (chip->rpm_retune && 162966d696aSAdrian Hunter host->tuning_mode != SDHCI_TUNING_MODE_3) 163966d696aSAdrian Hunter mmc_retune_needed(host->mmc); 164966d696aSAdrian Hunter } 165966d696aSAdrian Hunter 166966d696aSAdrian Hunter return 0; 167966d696aSAdrian Hunter 168966d696aSAdrian Hunter err_pci_runtime_suspend: 169966d696aSAdrian Hunter while (--i >= 0) 170c6303c5dSBaolin Wang sdhci_runtime_resume_host(chip->slots[i]->host, 0); 171966d696aSAdrian Hunter return ret; 172966d696aSAdrian Hunter } 173966d696aSAdrian Hunter 174966d696aSAdrian Hunter static int sdhci_pci_runtime_resume_host(struct sdhci_pci_chip *chip) 175966d696aSAdrian Hunter { 176966d696aSAdrian Hunter struct sdhci_pci_slot *slot; 177966d696aSAdrian Hunter int i, ret; 178966d696aSAdrian Hunter 179966d696aSAdrian Hunter for (i = 0; i < chip->num_slots; i++) { 180966d696aSAdrian Hunter slot = chip->slots[i]; 181966d696aSAdrian Hunter if (!slot) 182966d696aSAdrian Hunter continue; 183966d696aSAdrian Hunter 184c6303c5dSBaolin Wang ret = sdhci_runtime_resume_host(slot->host, 0); 185966d696aSAdrian Hunter if (ret) 186966d696aSAdrian Hunter return ret; 187966d696aSAdrian Hunter } 188966d696aSAdrian Hunter 189966d696aSAdrian Hunter return 0; 190966d696aSAdrian Hunter } 1918ee82bdaSAdrian Hunter 1928ee82bdaSAdrian Hunter static int sdhci_cqhci_runtime_suspend(struct sdhci_pci_chip *chip) 1938ee82bdaSAdrian Hunter { 1948ee82bdaSAdrian Hunter int ret; 1958ee82bdaSAdrian Hunter 1968ee82bdaSAdrian Hunter ret = cqhci_suspend(chip->slots[0]->host->mmc); 1978ee82bdaSAdrian Hunter if (ret) 1988ee82bdaSAdrian Hunter return ret; 1998ee82bdaSAdrian Hunter 2008ee82bdaSAdrian Hunter return sdhci_pci_runtime_suspend_host(chip); 2018ee82bdaSAdrian Hunter } 2028ee82bdaSAdrian Hunter 2038ee82bdaSAdrian Hunter static int sdhci_cqhci_runtime_resume(struct sdhci_pci_chip *chip) 2048ee82bdaSAdrian Hunter { 2058ee82bdaSAdrian Hunter int ret; 2068ee82bdaSAdrian Hunter 2078ee82bdaSAdrian Hunter ret = sdhci_pci_runtime_resume_host(chip); 2088ee82bdaSAdrian Hunter if (ret) 2098ee82bdaSAdrian Hunter return ret; 2108ee82bdaSAdrian Hunter 2118ee82bdaSAdrian Hunter return cqhci_resume(chip->slots[0]->host->mmc); 2128ee82bdaSAdrian Hunter } 213966d696aSAdrian Hunter #endif 214966d696aSAdrian Hunter 2158ee82bdaSAdrian Hunter static u32 sdhci_cqhci_irq(struct sdhci_host *host, u32 intmask) 2168ee82bdaSAdrian Hunter { 2178ee82bdaSAdrian Hunter int cmd_error = 0; 2188ee82bdaSAdrian Hunter int data_error = 0; 2198ee82bdaSAdrian Hunter 2208ee82bdaSAdrian Hunter if (!sdhci_cqe_irq(host, intmask, &cmd_error, &data_error)) 2218ee82bdaSAdrian Hunter return intmask; 2228ee82bdaSAdrian Hunter 2238ee82bdaSAdrian Hunter cqhci_irq(host->mmc, intmask, cmd_error, data_error); 2248ee82bdaSAdrian Hunter 2258ee82bdaSAdrian Hunter return 0; 2268ee82bdaSAdrian Hunter } 2278ee82bdaSAdrian Hunter 2288ee82bdaSAdrian Hunter static void sdhci_pci_dumpregs(struct mmc_host *mmc) 2298ee82bdaSAdrian Hunter { 2308ee82bdaSAdrian Hunter sdhci_dumpregs(mmc_priv(mmc)); 2318ee82bdaSAdrian Hunter } 2328ee82bdaSAdrian Hunter 233659c9bc1SBen Hutchings /*****************************************************************************\ 234659c9bc1SBen Hutchings * * 235659c9bc1SBen Hutchings * Hardware specific quirk handling * 236659c9bc1SBen Hutchings * * 237659c9bc1SBen Hutchings \*****************************************************************************/ 238659c9bc1SBen Hutchings 239659c9bc1SBen Hutchings static int ricoh_probe(struct sdhci_pci_chip *chip) 240659c9bc1SBen Hutchings { 241659c9bc1SBen Hutchings if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG || 242659c9bc1SBen Hutchings chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY) 243659c9bc1SBen Hutchings chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET; 244659c9bc1SBen Hutchings return 0; 245659c9bc1SBen Hutchings } 246659c9bc1SBen Hutchings 247659c9bc1SBen Hutchings static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot) 248659c9bc1SBen Hutchings { 249659c9bc1SBen Hutchings slot->host->caps = 250659c9bc1SBen Hutchings ((0x21 << SDHCI_TIMEOUT_CLK_SHIFT) 251659c9bc1SBen Hutchings & SDHCI_TIMEOUT_CLK_MASK) | 252659c9bc1SBen Hutchings 253659c9bc1SBen Hutchings ((0x21 << SDHCI_CLOCK_BASE_SHIFT) 254659c9bc1SBen Hutchings & SDHCI_CLOCK_BASE_MASK) | 255659c9bc1SBen Hutchings 256659c9bc1SBen Hutchings SDHCI_TIMEOUT_CLK_UNIT | 257659c9bc1SBen Hutchings SDHCI_CAN_VDD_330 | 258659c9bc1SBen Hutchings SDHCI_CAN_DO_HISPD | 259659c9bc1SBen Hutchings SDHCI_CAN_DO_SDMA; 260659c9bc1SBen Hutchings return 0; 261659c9bc1SBen Hutchings } 262659c9bc1SBen Hutchings 263b7813f0fSAdrian Hunter #ifdef CONFIG_PM_SLEEP 264659c9bc1SBen Hutchings static int ricoh_mmc_resume(struct sdhci_pci_chip *chip) 265659c9bc1SBen Hutchings { 266659c9bc1SBen Hutchings /* Apply a delay to allow controller to settle */ 267659c9bc1SBen Hutchings /* Otherwise it becomes confused if card state changed 268659c9bc1SBen Hutchings during suspend */ 269659c9bc1SBen Hutchings msleep(500); 27030cf2803SAdrian Hunter return sdhci_pci_resume_host(chip); 271659c9bc1SBen Hutchings } 272b7813f0fSAdrian Hunter #endif 273659c9bc1SBen Hutchings 274659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_ricoh = { 275659c9bc1SBen Hutchings .probe = ricoh_probe, 276659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | 277659c9bc1SBen Hutchings SDHCI_QUIRK_FORCE_DMA | 278659c9bc1SBen Hutchings SDHCI_QUIRK_CLOCK_BEFORE_RESET, 279659c9bc1SBen Hutchings }; 280659c9bc1SBen Hutchings 281659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_ricoh_mmc = { 282659c9bc1SBen Hutchings .probe_slot = ricoh_mmc_probe_slot, 283b7813f0fSAdrian Hunter #ifdef CONFIG_PM_SLEEP 284659c9bc1SBen Hutchings .resume = ricoh_mmc_resume, 285b7813f0fSAdrian Hunter #endif 286659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | 287659c9bc1SBen Hutchings SDHCI_QUIRK_CLOCK_BEFORE_RESET | 288659c9bc1SBen Hutchings SDHCI_QUIRK_NO_CARD_NO_RESET | 289659c9bc1SBen Hutchings SDHCI_QUIRK_MISSING_CAPS 290659c9bc1SBen Hutchings }; 291659c9bc1SBen Hutchings 292659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_ene_712 = { 293659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | 294659c9bc1SBen Hutchings SDHCI_QUIRK_BROKEN_DMA, 295659c9bc1SBen Hutchings }; 296659c9bc1SBen Hutchings 297659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_ene_714 = { 298659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | 299659c9bc1SBen Hutchings SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | 300659c9bc1SBen Hutchings SDHCI_QUIRK_BROKEN_DMA, 301659c9bc1SBen Hutchings }; 302659c9bc1SBen Hutchings 303659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_cafe = { 304659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | 305659c9bc1SBen Hutchings SDHCI_QUIRK_NO_BUSY_IRQ | 306659c9bc1SBen Hutchings SDHCI_QUIRK_BROKEN_CARD_DETECTION | 307659c9bc1SBen Hutchings SDHCI_QUIRK_BROKEN_TIMEOUT_VAL, 308659c9bc1SBen Hutchings }; 309659c9bc1SBen Hutchings 310659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_qrk = { 311659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_NO_HISPD_BIT, 312659c9bc1SBen Hutchings }; 313659c9bc1SBen Hutchings 314659c9bc1SBen Hutchings static int mrst_hc_probe_slot(struct sdhci_pci_slot *slot) 315659c9bc1SBen Hutchings { 316659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA; 317659c9bc1SBen Hutchings return 0; 318659c9bc1SBen Hutchings } 319659c9bc1SBen Hutchings 320659c9bc1SBen Hutchings /* 321659c9bc1SBen Hutchings * ADMA operation is disabled for Moorestown platform due to 322659c9bc1SBen Hutchings * hardware bugs. 323659c9bc1SBen Hutchings */ 324659c9bc1SBen Hutchings static int mrst_hc_probe(struct sdhci_pci_chip *chip) 325659c9bc1SBen Hutchings { 326659c9bc1SBen Hutchings /* 327659c9bc1SBen Hutchings * slots number is fixed here for MRST as SDIO3/5 are never used and 328659c9bc1SBen Hutchings * have hardware bugs. 329659c9bc1SBen Hutchings */ 330659c9bc1SBen Hutchings chip->num_slots = 1; 331659c9bc1SBen Hutchings return 0; 332659c9bc1SBen Hutchings } 333659c9bc1SBen Hutchings 334659c9bc1SBen Hutchings static int pch_hc_probe_slot(struct sdhci_pci_slot *slot) 335659c9bc1SBen Hutchings { 336659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA; 337659c9bc1SBen Hutchings return 0; 338659c9bc1SBen Hutchings } 339659c9bc1SBen Hutchings 340659c9bc1SBen Hutchings #ifdef CONFIG_PM 341659c9bc1SBen Hutchings 342659c9bc1SBen Hutchings static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id) 343659c9bc1SBen Hutchings { 344659c9bc1SBen Hutchings struct sdhci_pci_slot *slot = dev_id; 345659c9bc1SBen Hutchings struct sdhci_host *host = slot->host; 346659c9bc1SBen Hutchings 347659c9bc1SBen Hutchings mmc_detect_change(host->mmc, msecs_to_jiffies(200)); 348659c9bc1SBen Hutchings return IRQ_HANDLED; 349659c9bc1SBen Hutchings } 350659c9bc1SBen Hutchings 351659c9bc1SBen Hutchings static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot) 352659c9bc1SBen Hutchings { 353659c9bc1SBen Hutchings int err, irq, gpio = slot->cd_gpio; 354659c9bc1SBen Hutchings 355659c9bc1SBen Hutchings slot->cd_gpio = -EINVAL; 356659c9bc1SBen Hutchings slot->cd_irq = -EINVAL; 357659c9bc1SBen Hutchings 358659c9bc1SBen Hutchings if (!gpio_is_valid(gpio)) 359659c9bc1SBen Hutchings return; 360659c9bc1SBen Hutchings 361c10bc372SAndy Shevchenko err = devm_gpio_request(&slot->chip->pdev->dev, gpio, "sd_cd"); 362659c9bc1SBen Hutchings if (err < 0) 363659c9bc1SBen Hutchings goto out; 364659c9bc1SBen Hutchings 365659c9bc1SBen Hutchings err = gpio_direction_input(gpio); 366659c9bc1SBen Hutchings if (err < 0) 367659c9bc1SBen Hutchings goto out_free; 368659c9bc1SBen Hutchings 369659c9bc1SBen Hutchings irq = gpio_to_irq(gpio); 370659c9bc1SBen Hutchings if (irq < 0) 371659c9bc1SBen Hutchings goto out_free; 372659c9bc1SBen Hutchings 373659c9bc1SBen Hutchings err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING | 374659c9bc1SBen Hutchings IRQF_TRIGGER_FALLING, "sd_cd", slot); 375659c9bc1SBen Hutchings if (err) 376659c9bc1SBen Hutchings goto out_free; 377659c9bc1SBen Hutchings 378659c9bc1SBen Hutchings slot->cd_gpio = gpio; 379659c9bc1SBen Hutchings slot->cd_irq = irq; 380659c9bc1SBen Hutchings 381659c9bc1SBen Hutchings return; 382659c9bc1SBen Hutchings 383659c9bc1SBen Hutchings out_free: 384c10bc372SAndy Shevchenko devm_gpio_free(&slot->chip->pdev->dev, gpio); 385659c9bc1SBen Hutchings out: 386659c9bc1SBen Hutchings dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n"); 387659c9bc1SBen Hutchings } 388659c9bc1SBen Hutchings 389659c9bc1SBen Hutchings static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot) 390659c9bc1SBen Hutchings { 391659c9bc1SBen Hutchings if (slot->cd_irq >= 0) 392659c9bc1SBen Hutchings free_irq(slot->cd_irq, slot); 393659c9bc1SBen Hutchings } 394659c9bc1SBen Hutchings 395659c9bc1SBen Hutchings #else 396659c9bc1SBen Hutchings 397659c9bc1SBen Hutchings static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot) 398659c9bc1SBen Hutchings { 399659c9bc1SBen Hutchings } 400659c9bc1SBen Hutchings 401659c9bc1SBen Hutchings static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot) 402659c9bc1SBen Hutchings { 403659c9bc1SBen Hutchings } 404659c9bc1SBen Hutchings 405659c9bc1SBen Hutchings #endif 406659c9bc1SBen Hutchings 407659c9bc1SBen Hutchings static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot) 408659c9bc1SBen Hutchings { 409659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE; 410d2a47176SUlf Hansson slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC; 411659c9bc1SBen Hutchings return 0; 412659c9bc1SBen Hutchings } 413659c9bc1SBen Hutchings 414659c9bc1SBen Hutchings static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot) 415659c9bc1SBen Hutchings { 416659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE; 417659c9bc1SBen Hutchings return 0; 418659c9bc1SBen Hutchings } 419659c9bc1SBen Hutchings 420659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = { 421659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, 422659c9bc1SBen Hutchings .probe_slot = mrst_hc_probe_slot, 423659c9bc1SBen Hutchings }; 424659c9bc1SBen Hutchings 425659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = { 426659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, 427659c9bc1SBen Hutchings .probe = mrst_hc_probe, 428659c9bc1SBen Hutchings }; 429659c9bc1SBen Hutchings 430659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = { 431659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 432659c9bc1SBen Hutchings .allow_runtime_pm = true, 433659c9bc1SBen Hutchings .own_cd_for_runtime_pm = true, 434659c9bc1SBen Hutchings }; 435659c9bc1SBen Hutchings 436659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = { 437659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 438659c9bc1SBen Hutchings .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON, 439659c9bc1SBen Hutchings .allow_runtime_pm = true, 440659c9bc1SBen Hutchings .probe_slot = mfd_sdio_probe_slot, 441659c9bc1SBen Hutchings }; 442659c9bc1SBen Hutchings 443659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = { 444659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 445659c9bc1SBen Hutchings .allow_runtime_pm = true, 446659c9bc1SBen Hutchings .probe_slot = mfd_emmc_probe_slot, 447659c9bc1SBen Hutchings }; 448659c9bc1SBen Hutchings 449659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = { 450659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_BROKEN_ADMA, 451659c9bc1SBen Hutchings .probe_slot = pch_hc_probe_slot, 452659c9bc1SBen Hutchings }; 453659c9bc1SBen Hutchings 4540a49a619SAdrian Hunter #ifdef CONFIG_X86 4550a49a619SAdrian Hunter 4560a49a619SAdrian Hunter #define BYT_IOSF_SCCEP 0x63 4570a49a619SAdrian Hunter #define BYT_IOSF_OCP_NETCTRL0 0x1078 4580a49a619SAdrian Hunter #define BYT_IOSF_OCP_TIMEOUT_BASE GENMASK(10, 8) 4590a49a619SAdrian Hunter 4600a49a619SAdrian Hunter static void byt_ocp_setting(struct pci_dev *pdev) 4610a49a619SAdrian Hunter { 4620a49a619SAdrian Hunter u32 val = 0; 4630a49a619SAdrian Hunter 4640a49a619SAdrian Hunter if (pdev->device != PCI_DEVICE_ID_INTEL_BYT_EMMC && 4650a49a619SAdrian Hunter pdev->device != PCI_DEVICE_ID_INTEL_BYT_SDIO && 4660a49a619SAdrian Hunter pdev->device != PCI_DEVICE_ID_INTEL_BYT_SD && 4670a49a619SAdrian Hunter pdev->device != PCI_DEVICE_ID_INTEL_BYT_EMMC2) 4680a49a619SAdrian Hunter return; 4690a49a619SAdrian Hunter 4700a49a619SAdrian Hunter if (iosf_mbi_read(BYT_IOSF_SCCEP, MBI_CR_READ, BYT_IOSF_OCP_NETCTRL0, 4710a49a619SAdrian Hunter &val)) { 4720a49a619SAdrian Hunter dev_err(&pdev->dev, "%s read error\n", __func__); 4730a49a619SAdrian Hunter return; 4740a49a619SAdrian Hunter } 4750a49a619SAdrian Hunter 4760a49a619SAdrian Hunter if (!(val & BYT_IOSF_OCP_TIMEOUT_BASE)) 4770a49a619SAdrian Hunter return; 4780a49a619SAdrian Hunter 4790a49a619SAdrian Hunter val &= ~BYT_IOSF_OCP_TIMEOUT_BASE; 4800a49a619SAdrian Hunter 4810a49a619SAdrian Hunter if (iosf_mbi_write(BYT_IOSF_SCCEP, MBI_CR_WRITE, BYT_IOSF_OCP_NETCTRL0, 4820a49a619SAdrian Hunter val)) { 4830a49a619SAdrian Hunter dev_err(&pdev->dev, "%s write error\n", __func__); 4840a49a619SAdrian Hunter return; 4850a49a619SAdrian Hunter } 4860a49a619SAdrian Hunter 4870a49a619SAdrian Hunter dev_dbg(&pdev->dev, "%s completed\n", __func__); 4880a49a619SAdrian Hunter } 4890a49a619SAdrian Hunter 4900a49a619SAdrian Hunter #else 4910a49a619SAdrian Hunter 4920a49a619SAdrian Hunter static inline void byt_ocp_setting(struct pci_dev *pdev) 4930a49a619SAdrian Hunter { 4940a49a619SAdrian Hunter } 4950a49a619SAdrian Hunter 4960a49a619SAdrian Hunter #endif 4970a49a619SAdrian Hunter 498c959a6b0SAdrian Hunter enum { 499c959a6b0SAdrian Hunter INTEL_DSM_FNS = 0, 5006ae03368SAdrian Hunter INTEL_DSM_V18_SWITCH = 3, 501be17355aSAdrian Hunter INTEL_DSM_V33_SWITCH = 4, 50251ced59cSAdrian Hunter INTEL_DSM_DRV_STRENGTH = 9, 503c959a6b0SAdrian Hunter INTEL_DSM_D3_RETUNE = 10, 504c959a6b0SAdrian Hunter }; 505c959a6b0SAdrian Hunter 506c959a6b0SAdrian Hunter struct intel_host { 507c959a6b0SAdrian Hunter u32 dsm_fns; 50851ced59cSAdrian Hunter int drv_strength; 509c959a6b0SAdrian Hunter bool d3_retune; 5105305ec6aSAdrian Hunter bool rpm_retune_ok; 5115305ec6aSAdrian Hunter u32 glk_rx_ctrl1; 5125305ec6aSAdrian Hunter u32 glk_tun_val; 513c959a6b0SAdrian Hunter }; 514c959a6b0SAdrian Hunter 515c37f69ffSColin Ian King static const guid_t intel_dsm_guid = 51694116f81SAndy Shevchenko GUID_INIT(0xF6C13EA5, 0x65CD, 0x461F, 51794116f81SAndy Shevchenko 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61); 518c959a6b0SAdrian Hunter 519c959a6b0SAdrian Hunter static int __intel_dsm(struct intel_host *intel_host, struct device *dev, 520c959a6b0SAdrian Hunter unsigned int fn, u32 *result) 521c959a6b0SAdrian Hunter { 522c959a6b0SAdrian Hunter union acpi_object *obj; 523c959a6b0SAdrian Hunter int err = 0; 524a72016a4SAdrian Hunter size_t len; 525c959a6b0SAdrian Hunter 52694116f81SAndy Shevchenko obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_guid, 0, fn, NULL); 527c959a6b0SAdrian Hunter if (!obj) 528c959a6b0SAdrian Hunter return -EOPNOTSUPP; 529c959a6b0SAdrian Hunter 530c959a6b0SAdrian Hunter if (obj->type != ACPI_TYPE_BUFFER || obj->buffer.length < 1) { 531c959a6b0SAdrian Hunter err = -EINVAL; 532c959a6b0SAdrian Hunter goto out; 533c959a6b0SAdrian Hunter } 534c959a6b0SAdrian Hunter 535a72016a4SAdrian Hunter len = min_t(size_t, obj->buffer.length, 4); 536a72016a4SAdrian Hunter 537a72016a4SAdrian Hunter *result = 0; 538a72016a4SAdrian Hunter memcpy(result, obj->buffer.pointer, len); 539c959a6b0SAdrian Hunter out: 540c959a6b0SAdrian Hunter ACPI_FREE(obj); 541c959a6b0SAdrian Hunter 542c959a6b0SAdrian Hunter return err; 543c959a6b0SAdrian Hunter } 544c959a6b0SAdrian Hunter 545c959a6b0SAdrian Hunter static int intel_dsm(struct intel_host *intel_host, struct device *dev, 546c959a6b0SAdrian Hunter unsigned int fn, u32 *result) 547c959a6b0SAdrian Hunter { 548c959a6b0SAdrian Hunter if (fn > 31 || !(intel_host->dsm_fns & (1 << fn))) 549c959a6b0SAdrian Hunter return -EOPNOTSUPP; 550c959a6b0SAdrian Hunter 551c959a6b0SAdrian Hunter return __intel_dsm(intel_host, dev, fn, result); 552c959a6b0SAdrian Hunter } 553c959a6b0SAdrian Hunter 554c959a6b0SAdrian Hunter static void intel_dsm_init(struct intel_host *intel_host, struct device *dev, 555c959a6b0SAdrian Hunter struct mmc_host *mmc) 556c959a6b0SAdrian Hunter { 557c959a6b0SAdrian Hunter int err; 558c959a6b0SAdrian Hunter u32 val; 559c959a6b0SAdrian Hunter 560eb701ce1SAdrian Hunter intel_host->d3_retune = true; 561eb701ce1SAdrian Hunter 562c959a6b0SAdrian Hunter err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns); 563c959a6b0SAdrian Hunter if (err) { 564c959a6b0SAdrian Hunter pr_debug("%s: DSM not supported, error %d\n", 565c959a6b0SAdrian Hunter mmc_hostname(mmc), err); 566c959a6b0SAdrian Hunter return; 567c959a6b0SAdrian Hunter } 568c959a6b0SAdrian Hunter 569c959a6b0SAdrian Hunter pr_debug("%s: DSM function mask %#x\n", 570c959a6b0SAdrian Hunter mmc_hostname(mmc), intel_host->dsm_fns); 571c959a6b0SAdrian Hunter 57251ced59cSAdrian Hunter err = intel_dsm(intel_host, dev, INTEL_DSM_DRV_STRENGTH, &val); 57351ced59cSAdrian Hunter intel_host->drv_strength = err ? 0 : val; 57451ced59cSAdrian Hunter 575c959a6b0SAdrian Hunter err = intel_dsm(intel_host, dev, INTEL_DSM_D3_RETUNE, &val); 576c959a6b0SAdrian Hunter intel_host->d3_retune = err ? true : !!val; 577c959a6b0SAdrian Hunter } 578c959a6b0SAdrian Hunter 579659c9bc1SBen Hutchings static void sdhci_pci_int_hw_reset(struct sdhci_host *host) 580659c9bc1SBen Hutchings { 581659c9bc1SBen Hutchings u8 reg; 582659c9bc1SBen Hutchings 583659c9bc1SBen Hutchings reg = sdhci_readb(host, SDHCI_POWER_CONTROL); 584659c9bc1SBen Hutchings reg |= 0x10; 585659c9bc1SBen Hutchings sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); 586659c9bc1SBen Hutchings /* For eMMC, minimum is 1us but give it 9us for good measure */ 587659c9bc1SBen Hutchings udelay(9); 588659c9bc1SBen Hutchings reg &= ~0x10; 589659c9bc1SBen Hutchings sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); 590659c9bc1SBen Hutchings /* For eMMC, minimum is 200us but give it 300us for good measure */ 591659c9bc1SBen Hutchings usleep_range(300, 1000); 592659c9bc1SBen Hutchings } 593659c9bc1SBen Hutchings 59451ced59cSAdrian Hunter static int intel_select_drive_strength(struct mmc_card *card, 59551ced59cSAdrian Hunter unsigned int max_dtr, int host_drv, 59651ced59cSAdrian Hunter int card_drv, int *drv_type) 597659c9bc1SBen Hutchings { 59851ced59cSAdrian Hunter struct sdhci_host *host = mmc_priv(card->host); 59951ced59cSAdrian Hunter struct sdhci_pci_slot *slot = sdhci_priv(host); 60051ced59cSAdrian Hunter struct intel_host *intel_host = sdhci_pci_priv(slot); 601659c9bc1SBen Hutchings 60251ced59cSAdrian Hunter return intel_host->drv_strength; 603659c9bc1SBen Hutchings } 604659c9bc1SBen Hutchings 605163cbe31SAdrian Hunter static int bxt_get_cd(struct mmc_host *mmc) 606163cbe31SAdrian Hunter { 607163cbe31SAdrian Hunter int gpio_cd = mmc_gpio_get_cd(mmc); 608163cbe31SAdrian Hunter struct sdhci_host *host = mmc_priv(mmc); 609163cbe31SAdrian Hunter unsigned long flags; 610163cbe31SAdrian Hunter int ret = 0; 611163cbe31SAdrian Hunter 612163cbe31SAdrian Hunter if (!gpio_cd) 613163cbe31SAdrian Hunter return 0; 614163cbe31SAdrian Hunter 615163cbe31SAdrian Hunter spin_lock_irqsave(&host->lock, flags); 616163cbe31SAdrian Hunter 617163cbe31SAdrian Hunter if (host->flags & SDHCI_DEVICE_DEAD) 618163cbe31SAdrian Hunter goto out; 619163cbe31SAdrian Hunter 620163cbe31SAdrian Hunter ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); 621163cbe31SAdrian Hunter out: 622163cbe31SAdrian Hunter spin_unlock_irqrestore(&host->lock, flags); 623163cbe31SAdrian Hunter 624163cbe31SAdrian Hunter return ret; 625163cbe31SAdrian Hunter } 626163cbe31SAdrian Hunter 62748d685a2SAdrian Hunter #define SDHCI_INTEL_PWR_TIMEOUT_CNT 20 62848d685a2SAdrian Hunter #define SDHCI_INTEL_PWR_TIMEOUT_UDELAY 100 62948d685a2SAdrian Hunter 63048d685a2SAdrian Hunter static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode, 63148d685a2SAdrian Hunter unsigned short vdd) 63248d685a2SAdrian Hunter { 63348d685a2SAdrian Hunter int cntr; 63448d685a2SAdrian Hunter u8 reg; 63548d685a2SAdrian Hunter 63648d685a2SAdrian Hunter sdhci_set_power(host, mode, vdd); 63748d685a2SAdrian Hunter 63848d685a2SAdrian Hunter if (mode == MMC_POWER_OFF) 63948d685a2SAdrian Hunter return; 64048d685a2SAdrian Hunter 64148d685a2SAdrian Hunter /* 64248d685a2SAdrian Hunter * Bus power might not enable after D3 -> D0 transition due to the 64348d685a2SAdrian Hunter * present state not yet having propagated. Retry for up to 2ms. 64448d685a2SAdrian Hunter */ 64548d685a2SAdrian Hunter for (cntr = 0; cntr < SDHCI_INTEL_PWR_TIMEOUT_CNT; cntr++) { 64648d685a2SAdrian Hunter reg = sdhci_readb(host, SDHCI_POWER_CONTROL); 64748d685a2SAdrian Hunter if (reg & SDHCI_POWER_ON) 64848d685a2SAdrian Hunter break; 64948d685a2SAdrian Hunter udelay(SDHCI_INTEL_PWR_TIMEOUT_UDELAY); 65048d685a2SAdrian Hunter reg |= SDHCI_POWER_ON; 65148d685a2SAdrian Hunter sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); 65248d685a2SAdrian Hunter } 65348d685a2SAdrian Hunter } 65448d685a2SAdrian Hunter 655bc55dcd8SAdrian Hunter #define INTEL_HS400_ES_REG 0x78 656bc55dcd8SAdrian Hunter #define INTEL_HS400_ES_BIT BIT(0) 657bc55dcd8SAdrian Hunter 658bc55dcd8SAdrian Hunter static void intel_hs400_enhanced_strobe(struct mmc_host *mmc, 659bc55dcd8SAdrian Hunter struct mmc_ios *ios) 660bc55dcd8SAdrian Hunter { 661bc55dcd8SAdrian Hunter struct sdhci_host *host = mmc_priv(mmc); 662bc55dcd8SAdrian Hunter u32 val; 663bc55dcd8SAdrian Hunter 664bc55dcd8SAdrian Hunter val = sdhci_readl(host, INTEL_HS400_ES_REG); 665bc55dcd8SAdrian Hunter if (ios->enhanced_strobe) 666bc55dcd8SAdrian Hunter val |= INTEL_HS400_ES_BIT; 667bc55dcd8SAdrian Hunter else 668bc55dcd8SAdrian Hunter val &= ~INTEL_HS400_ES_BIT; 669bc55dcd8SAdrian Hunter sdhci_writel(host, val, INTEL_HS400_ES_REG); 670bc55dcd8SAdrian Hunter } 671bc55dcd8SAdrian Hunter 672be17355aSAdrian Hunter static int intel_start_signal_voltage_switch(struct mmc_host *mmc, 673be17355aSAdrian Hunter struct mmc_ios *ios) 6746ae03368SAdrian Hunter { 675be17355aSAdrian Hunter struct device *dev = mmc_dev(mmc); 676be17355aSAdrian Hunter struct sdhci_host *host = mmc_priv(mmc); 6776ae03368SAdrian Hunter struct sdhci_pci_slot *slot = sdhci_priv(host); 6786ae03368SAdrian Hunter struct intel_host *intel_host = sdhci_pci_priv(slot); 679be17355aSAdrian Hunter unsigned int fn; 6806ae03368SAdrian Hunter u32 result = 0; 6816ae03368SAdrian Hunter int err; 6826ae03368SAdrian Hunter 683be17355aSAdrian Hunter err = sdhci_start_signal_voltage_switch(mmc, ios); 684be17355aSAdrian Hunter if (err) 685be17355aSAdrian Hunter return err; 686be17355aSAdrian Hunter 687be17355aSAdrian Hunter switch (ios->signal_voltage) { 688be17355aSAdrian Hunter case MMC_SIGNAL_VOLTAGE_330: 689be17355aSAdrian Hunter fn = INTEL_DSM_V33_SWITCH; 690be17355aSAdrian Hunter break; 691be17355aSAdrian Hunter case MMC_SIGNAL_VOLTAGE_180: 692be17355aSAdrian Hunter fn = INTEL_DSM_V18_SWITCH; 693be17355aSAdrian Hunter break; 694be17355aSAdrian Hunter default: 695be17355aSAdrian Hunter return 0; 696be17355aSAdrian Hunter } 697be17355aSAdrian Hunter 698be17355aSAdrian Hunter err = intel_dsm(intel_host, dev, fn, &result); 699be17355aSAdrian Hunter pr_debug("%s: %s DSM fn %u error %d result %u\n", 700be17355aSAdrian Hunter mmc_hostname(mmc), __func__, fn, err, result); 701be17355aSAdrian Hunter 702be17355aSAdrian Hunter return 0; 7036ae03368SAdrian Hunter } 7046ae03368SAdrian Hunter 70548d685a2SAdrian Hunter static const struct sdhci_ops sdhci_intel_byt_ops = { 70648d685a2SAdrian Hunter .set_clock = sdhci_set_clock, 70748d685a2SAdrian Hunter .set_power = sdhci_intel_set_power, 70848d685a2SAdrian Hunter .enable_dma = sdhci_pci_enable_dma, 709adc16398SMichał Mirosław .set_bus_width = sdhci_set_bus_width, 71048d685a2SAdrian Hunter .reset = sdhci_reset, 71148d685a2SAdrian Hunter .set_uhs_signaling = sdhci_set_uhs_signaling, 71248d685a2SAdrian Hunter .hw_reset = sdhci_pci_hw_reset, 71348d685a2SAdrian Hunter }; 71448d685a2SAdrian Hunter 7158ee82bdaSAdrian Hunter static const struct sdhci_ops sdhci_intel_glk_ops = { 7168ee82bdaSAdrian Hunter .set_clock = sdhci_set_clock, 7178ee82bdaSAdrian Hunter .set_power = sdhci_intel_set_power, 7188ee82bdaSAdrian Hunter .enable_dma = sdhci_pci_enable_dma, 7198ee82bdaSAdrian Hunter .set_bus_width = sdhci_set_bus_width, 7208ee82bdaSAdrian Hunter .reset = sdhci_reset, 7218ee82bdaSAdrian Hunter .set_uhs_signaling = sdhci_set_uhs_signaling, 7228ee82bdaSAdrian Hunter .hw_reset = sdhci_pci_hw_reset, 7238ee82bdaSAdrian Hunter .irq = sdhci_cqhci_irq, 7248ee82bdaSAdrian Hunter }; 7258ee82bdaSAdrian Hunter 726c959a6b0SAdrian Hunter static void byt_read_dsm(struct sdhci_pci_slot *slot) 727c959a6b0SAdrian Hunter { 728c959a6b0SAdrian Hunter struct intel_host *intel_host = sdhci_pci_priv(slot); 729c959a6b0SAdrian Hunter struct device *dev = &slot->chip->pdev->dev; 730c959a6b0SAdrian Hunter struct mmc_host *mmc = slot->host->mmc; 731c959a6b0SAdrian Hunter 732c959a6b0SAdrian Hunter intel_dsm_init(intel_host, dev, mmc); 733c959a6b0SAdrian Hunter slot->chip->rpm_retune = intel_host->d3_retune; 734c959a6b0SAdrian Hunter } 735c959a6b0SAdrian Hunter 736f8870ae6SAdrian Hunter static int intel_execute_tuning(struct mmc_host *mmc, u32 opcode) 737f8870ae6SAdrian Hunter { 738f8870ae6SAdrian Hunter int err = sdhci_execute_tuning(mmc, opcode); 739f8870ae6SAdrian Hunter struct sdhci_host *host = mmc_priv(mmc); 740f8870ae6SAdrian Hunter 741f8870ae6SAdrian Hunter if (err) 742f8870ae6SAdrian Hunter return err; 743f8870ae6SAdrian Hunter 744f8870ae6SAdrian Hunter /* 745f8870ae6SAdrian Hunter * Tuning can leave the IP in an active state (Buffer Read Enable bit 746f8870ae6SAdrian Hunter * set) which prevents the entry to low power states (i.e. S0i3). Data 747f8870ae6SAdrian Hunter * reset will clear it. 748f8870ae6SAdrian Hunter */ 749f8870ae6SAdrian Hunter sdhci_reset(host, SDHCI_RESET_DATA); 750f8870ae6SAdrian Hunter 751f8870ae6SAdrian Hunter return 0; 752f8870ae6SAdrian Hunter } 753f8870ae6SAdrian Hunter 754f8870ae6SAdrian Hunter static void byt_probe_slot(struct sdhci_pci_slot *slot) 755f8870ae6SAdrian Hunter { 756f8870ae6SAdrian Hunter struct mmc_host_ops *ops = &slot->host->mmc_host_ops; 757809090e8SAdrian Hunter struct device *dev = &slot->chip->pdev->dev; 758809090e8SAdrian Hunter struct mmc_host *mmc = slot->host->mmc; 759f8870ae6SAdrian Hunter 760f8870ae6SAdrian Hunter byt_read_dsm(slot); 761f8870ae6SAdrian Hunter 7620a49a619SAdrian Hunter byt_ocp_setting(slot->chip->pdev); 7630a49a619SAdrian Hunter 764f8870ae6SAdrian Hunter ops->execute_tuning = intel_execute_tuning; 765be17355aSAdrian Hunter ops->start_signal_voltage_switch = intel_start_signal_voltage_switch; 766809090e8SAdrian Hunter 767809090e8SAdrian Hunter device_property_read_u32(dev, "max-frequency", &mmc->f_max); 768f8870ae6SAdrian Hunter } 769f8870ae6SAdrian Hunter 770659c9bc1SBen Hutchings static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot) 771659c9bc1SBen Hutchings { 772f8870ae6SAdrian Hunter byt_probe_slot(slot); 773659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | 774659c9bc1SBen Hutchings MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR | 77532828857SAdrian Hunter MMC_CAP_CMD_DURING_TFR | 776659c9bc1SBen Hutchings MMC_CAP_WAIT_WHILE_BUSY; 777659c9bc1SBen Hutchings slot->hw_reset = sdhci_pci_int_hw_reset; 778659c9bc1SBen Hutchings if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC) 779659c9bc1SBen Hutchings slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */ 78051ced59cSAdrian Hunter slot->host->mmc_host_ops.select_drive_strength = 78151ced59cSAdrian Hunter intel_select_drive_strength; 782659c9bc1SBen Hutchings return 0; 783659c9bc1SBen Hutchings } 784659c9bc1SBen Hutchings 785bc55dcd8SAdrian Hunter static int glk_emmc_probe_slot(struct sdhci_pci_slot *slot) 786bc55dcd8SAdrian Hunter { 787bc55dcd8SAdrian Hunter int ret = byt_emmc_probe_slot(slot); 788bc55dcd8SAdrian Hunter 7898ee82bdaSAdrian Hunter slot->host->mmc->caps2 |= MMC_CAP2_CQE; 7908ee82bdaSAdrian Hunter 791bc55dcd8SAdrian Hunter if (slot->chip->pdev->device != PCI_DEVICE_ID_INTEL_GLK_EMMC) { 792bc55dcd8SAdrian Hunter slot->host->mmc->caps2 |= MMC_CAP2_HS400_ES, 793bc55dcd8SAdrian Hunter slot->host->mmc_host_ops.hs400_enhanced_strobe = 794bc55dcd8SAdrian Hunter intel_hs400_enhanced_strobe; 7958ee82bdaSAdrian Hunter slot->host->mmc->caps2 |= MMC_CAP2_CQE_DCMD; 796bc55dcd8SAdrian Hunter } 797bc55dcd8SAdrian Hunter 798bc55dcd8SAdrian Hunter return ret; 799bc55dcd8SAdrian Hunter } 800bc55dcd8SAdrian Hunter 8018ee82bdaSAdrian Hunter static const struct cqhci_host_ops glk_cqhci_ops = { 8027b7d57fdSAdrian Hunter .enable = sdhci_cqe_enable, 8038ee82bdaSAdrian Hunter .disable = sdhci_cqe_disable, 8048ee82bdaSAdrian Hunter .dumpregs = sdhci_pci_dumpregs, 8058ee82bdaSAdrian Hunter }; 8068ee82bdaSAdrian Hunter 8078ee82bdaSAdrian Hunter static int glk_emmc_add_host(struct sdhci_pci_slot *slot) 8088ee82bdaSAdrian Hunter { 8098ee82bdaSAdrian Hunter struct device *dev = &slot->chip->pdev->dev; 8108ee82bdaSAdrian Hunter struct sdhci_host *host = slot->host; 8118ee82bdaSAdrian Hunter struct cqhci_host *cq_host; 8128ee82bdaSAdrian Hunter bool dma64; 8138ee82bdaSAdrian Hunter int ret; 8148ee82bdaSAdrian Hunter 8158ee82bdaSAdrian Hunter ret = sdhci_setup_host(host); 8168ee82bdaSAdrian Hunter if (ret) 8178ee82bdaSAdrian Hunter return ret; 8188ee82bdaSAdrian Hunter 8198ee82bdaSAdrian Hunter cq_host = devm_kzalloc(dev, sizeof(*cq_host), GFP_KERNEL); 8208ee82bdaSAdrian Hunter if (!cq_host) { 8218ee82bdaSAdrian Hunter ret = -ENOMEM; 8228ee82bdaSAdrian Hunter goto cleanup; 8238ee82bdaSAdrian Hunter } 8248ee82bdaSAdrian Hunter 8258ee82bdaSAdrian Hunter cq_host->mmio = host->ioaddr + 0x200; 8268ee82bdaSAdrian Hunter cq_host->quirks |= CQHCI_QUIRK_SHORT_TXFR_DESC_SZ; 8278ee82bdaSAdrian Hunter cq_host->ops = &glk_cqhci_ops; 8288ee82bdaSAdrian Hunter 8298ee82bdaSAdrian Hunter dma64 = host->flags & SDHCI_USE_64_BIT_DMA; 8308ee82bdaSAdrian Hunter if (dma64) 8318ee82bdaSAdrian Hunter cq_host->caps |= CQHCI_TASK_DESC_SZ_128; 8328ee82bdaSAdrian Hunter 8338ee82bdaSAdrian Hunter ret = cqhci_init(cq_host, host->mmc, dma64); 8348ee82bdaSAdrian Hunter if (ret) 8358ee82bdaSAdrian Hunter goto cleanup; 8368ee82bdaSAdrian Hunter 8378ee82bdaSAdrian Hunter ret = __sdhci_add_host(host); 8388ee82bdaSAdrian Hunter if (ret) 8398ee82bdaSAdrian Hunter goto cleanup; 8408ee82bdaSAdrian Hunter 8418ee82bdaSAdrian Hunter return 0; 8428ee82bdaSAdrian Hunter 8438ee82bdaSAdrian Hunter cleanup: 8448ee82bdaSAdrian Hunter sdhci_cleanup_host(host); 8458ee82bdaSAdrian Hunter return ret; 8468ee82bdaSAdrian Hunter } 8478ee82bdaSAdrian Hunter 8485305ec6aSAdrian Hunter #ifdef CONFIG_PM 8495305ec6aSAdrian Hunter #define GLK_RX_CTRL1 0x834 8505305ec6aSAdrian Hunter #define GLK_TUN_VAL 0x840 8515305ec6aSAdrian Hunter #define GLK_PATH_PLL GENMASK(13, 8) 8525305ec6aSAdrian Hunter #define GLK_DLY GENMASK(6, 0) 8535305ec6aSAdrian Hunter /* Workaround firmware failing to restore the tuning value */ 8545305ec6aSAdrian Hunter static void glk_rpm_retune_wa(struct sdhci_pci_chip *chip, bool susp) 8555305ec6aSAdrian Hunter { 8565305ec6aSAdrian Hunter struct sdhci_pci_slot *slot = chip->slots[0]; 8575305ec6aSAdrian Hunter struct intel_host *intel_host = sdhci_pci_priv(slot); 8585305ec6aSAdrian Hunter struct sdhci_host *host = slot->host; 8595305ec6aSAdrian Hunter u32 glk_rx_ctrl1; 8605305ec6aSAdrian Hunter u32 glk_tun_val; 8615305ec6aSAdrian Hunter u32 dly; 8625305ec6aSAdrian Hunter 8635305ec6aSAdrian Hunter if (intel_host->rpm_retune_ok || !mmc_can_retune(host->mmc)) 8645305ec6aSAdrian Hunter return; 8655305ec6aSAdrian Hunter 8665305ec6aSAdrian Hunter glk_rx_ctrl1 = sdhci_readl(host, GLK_RX_CTRL1); 8675305ec6aSAdrian Hunter glk_tun_val = sdhci_readl(host, GLK_TUN_VAL); 8685305ec6aSAdrian Hunter 8695305ec6aSAdrian Hunter if (susp) { 8705305ec6aSAdrian Hunter intel_host->glk_rx_ctrl1 = glk_rx_ctrl1; 8715305ec6aSAdrian Hunter intel_host->glk_tun_val = glk_tun_val; 8725305ec6aSAdrian Hunter return; 8735305ec6aSAdrian Hunter } 8745305ec6aSAdrian Hunter 8755305ec6aSAdrian Hunter if (!intel_host->glk_tun_val) 8765305ec6aSAdrian Hunter return; 8775305ec6aSAdrian Hunter 8785305ec6aSAdrian Hunter if (glk_rx_ctrl1 != intel_host->glk_rx_ctrl1) { 8795305ec6aSAdrian Hunter intel_host->rpm_retune_ok = true; 8805305ec6aSAdrian Hunter return; 8815305ec6aSAdrian Hunter } 8825305ec6aSAdrian Hunter 8835305ec6aSAdrian Hunter dly = FIELD_PREP(GLK_DLY, FIELD_GET(GLK_PATH_PLL, glk_rx_ctrl1) + 8845305ec6aSAdrian Hunter (intel_host->glk_tun_val << 1)); 8855305ec6aSAdrian Hunter if (dly == FIELD_GET(GLK_DLY, glk_rx_ctrl1)) 8865305ec6aSAdrian Hunter return; 8875305ec6aSAdrian Hunter 8885305ec6aSAdrian Hunter glk_rx_ctrl1 = (glk_rx_ctrl1 & ~GLK_DLY) | dly; 8895305ec6aSAdrian Hunter sdhci_writel(host, glk_rx_ctrl1, GLK_RX_CTRL1); 8905305ec6aSAdrian Hunter 8915305ec6aSAdrian Hunter intel_host->rpm_retune_ok = true; 8925305ec6aSAdrian Hunter chip->rpm_retune = true; 8935305ec6aSAdrian Hunter mmc_retune_needed(host->mmc); 8945305ec6aSAdrian Hunter pr_info("%s: Requiring re-tune after rpm resume", mmc_hostname(host->mmc)); 8955305ec6aSAdrian Hunter } 8965305ec6aSAdrian Hunter 8975305ec6aSAdrian Hunter static void glk_rpm_retune_chk(struct sdhci_pci_chip *chip, bool susp) 8985305ec6aSAdrian Hunter { 8995305ec6aSAdrian Hunter if (chip->pdev->device == PCI_DEVICE_ID_INTEL_GLK_EMMC && 9005305ec6aSAdrian Hunter !chip->rpm_retune) 9015305ec6aSAdrian Hunter glk_rpm_retune_wa(chip, susp); 9025305ec6aSAdrian Hunter } 9035305ec6aSAdrian Hunter 9045305ec6aSAdrian Hunter static int glk_runtime_suspend(struct sdhci_pci_chip *chip) 9055305ec6aSAdrian Hunter { 9065305ec6aSAdrian Hunter glk_rpm_retune_chk(chip, true); 9075305ec6aSAdrian Hunter 9085305ec6aSAdrian Hunter return sdhci_cqhci_runtime_suspend(chip); 9095305ec6aSAdrian Hunter } 9105305ec6aSAdrian Hunter 9115305ec6aSAdrian Hunter static int glk_runtime_resume(struct sdhci_pci_chip *chip) 9125305ec6aSAdrian Hunter { 9135305ec6aSAdrian Hunter glk_rpm_retune_chk(chip, false); 9145305ec6aSAdrian Hunter 9155305ec6aSAdrian Hunter return sdhci_cqhci_runtime_resume(chip); 9165305ec6aSAdrian Hunter } 9175305ec6aSAdrian Hunter #endif 9185305ec6aSAdrian Hunter 9193f23df72SZach Brown #ifdef CONFIG_ACPI 9203f23df72SZach Brown static int ni_set_max_freq(struct sdhci_pci_slot *slot) 9213f23df72SZach Brown { 9223f23df72SZach Brown acpi_status status; 9233f23df72SZach Brown unsigned long long max_freq; 9243f23df72SZach Brown 9253f23df72SZach Brown status = acpi_evaluate_integer(ACPI_HANDLE(&slot->chip->pdev->dev), 9263f23df72SZach Brown "MXFQ", NULL, &max_freq); 9273f23df72SZach Brown if (ACPI_FAILURE(status)) { 9283f23df72SZach Brown dev_err(&slot->chip->pdev->dev, 9293f23df72SZach Brown "MXFQ not found in acpi table\n"); 9303f23df72SZach Brown return -EINVAL; 9313f23df72SZach Brown } 9323f23df72SZach Brown 9333f23df72SZach Brown slot->host->mmc->f_max = max_freq * 1000000; 9343f23df72SZach Brown 9353f23df72SZach Brown return 0; 9363f23df72SZach Brown } 9373f23df72SZach Brown #else 9383f23df72SZach Brown static inline int ni_set_max_freq(struct sdhci_pci_slot *slot) 9393f23df72SZach Brown { 9403f23df72SZach Brown return 0; 9413f23df72SZach Brown } 9423f23df72SZach Brown #endif 9433f23df72SZach Brown 94442b06496SZach Brown static int ni_byt_sdio_probe_slot(struct sdhci_pci_slot *slot) 94542b06496SZach Brown { 9463f23df72SZach Brown int err; 9473f23df72SZach Brown 948f8870ae6SAdrian Hunter byt_probe_slot(slot); 949c959a6b0SAdrian Hunter 9503f23df72SZach Brown err = ni_set_max_freq(slot); 9513f23df72SZach Brown if (err) 9523f23df72SZach Brown return err; 9533f23df72SZach Brown 95442b06496SZach Brown slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE | 95542b06496SZach Brown MMC_CAP_WAIT_WHILE_BUSY; 95642b06496SZach Brown return 0; 95742b06496SZach Brown } 95842b06496SZach Brown 959659c9bc1SBen Hutchings static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot) 960659c9bc1SBen Hutchings { 961f8870ae6SAdrian Hunter byt_probe_slot(slot); 962659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE | 963659c9bc1SBen Hutchings MMC_CAP_WAIT_WHILE_BUSY; 964659c9bc1SBen Hutchings return 0; 965659c9bc1SBen Hutchings } 966659c9bc1SBen Hutchings 967659c9bc1SBen Hutchings static int byt_sd_probe_slot(struct sdhci_pci_slot *slot) 968659c9bc1SBen Hutchings { 969f8870ae6SAdrian Hunter byt_probe_slot(slot); 970c2c49a2eSAzhar Shaikh slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | 9716cf4156cSAdrian Hunter MMC_CAP_AGGRESSIVE_PM | MMC_CAP_CD_WAKE; 972659c9bc1SBen Hutchings slot->cd_idx = 0; 973659c9bc1SBen Hutchings slot->cd_override_level = true; 974163cbe31SAdrian Hunter if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD || 97501d6b2a4SAdrian Hunter slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD || 9762d1956d0SAdrian Hunter slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD || 977c2c49a2eSAzhar Shaikh slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_GLK_SD) 978163cbe31SAdrian Hunter slot->host->mmc_host_ops.get_cd = bxt_get_cd; 979163cbe31SAdrian Hunter 980bb26b841SKyle Roeschley if (slot->chip->pdev->subsystem_vendor == PCI_VENDOR_ID_NI && 981bb26b841SKyle Roeschley slot->chip->pdev->subsystem_device == PCI_SUBDEVICE_ID_NI_78E3) 982bb26b841SKyle Roeschley slot->host->mmc->caps2 |= MMC_CAP2_AVOID_3_3V; 983bb26b841SKyle Roeschley 984659c9bc1SBen Hutchings return 0; 985659c9bc1SBen Hutchings } 986659c9bc1SBen Hutchings 9870a49a619SAdrian Hunter #ifdef CONFIG_PM_SLEEP 9880a49a619SAdrian Hunter 9890a49a619SAdrian Hunter static int byt_resume(struct sdhci_pci_chip *chip) 9900a49a619SAdrian Hunter { 9910a49a619SAdrian Hunter byt_ocp_setting(chip->pdev); 9920a49a619SAdrian Hunter 9930a49a619SAdrian Hunter return sdhci_pci_resume_host(chip); 9940a49a619SAdrian Hunter } 9950a49a619SAdrian Hunter 9960a49a619SAdrian Hunter #endif 9970a49a619SAdrian Hunter 9980a49a619SAdrian Hunter #ifdef CONFIG_PM 9990a49a619SAdrian Hunter 10000a49a619SAdrian Hunter static int byt_runtime_resume(struct sdhci_pci_chip *chip) 10010a49a619SAdrian Hunter { 10020a49a619SAdrian Hunter byt_ocp_setting(chip->pdev); 10030a49a619SAdrian Hunter 10040a49a619SAdrian Hunter return sdhci_pci_runtime_resume_host(chip); 10050a49a619SAdrian Hunter } 10060a49a619SAdrian Hunter 10070a49a619SAdrian Hunter #endif 10080a49a619SAdrian Hunter 1009659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { 10100a49a619SAdrian Hunter #ifdef CONFIG_PM_SLEEP 10110a49a619SAdrian Hunter .resume = byt_resume, 10120a49a619SAdrian Hunter #endif 10130a49a619SAdrian Hunter #ifdef CONFIG_PM 10140a49a619SAdrian Hunter .runtime_resume = byt_runtime_resume, 10150a49a619SAdrian Hunter #endif 1016659c9bc1SBen Hutchings .allow_runtime_pm = true, 1017659c9bc1SBen Hutchings .probe_slot = byt_emmc_probe_slot, 1018aeae6ad3SAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | 1019aeae6ad3SAdrian Hunter SDHCI_QUIRK_NO_LED, 1020659c9bc1SBen Hutchings .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | 1021659c9bc1SBen Hutchings SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 | 1022659c9bc1SBen Hutchings SDHCI_QUIRK2_STOP_WITH_TC, 1023fee686b7SAdrian Hunter .ops = &sdhci_intel_byt_ops, 1024c959a6b0SAdrian Hunter .priv_size = sizeof(struct intel_host), 1025659c9bc1SBen Hutchings }; 1026659c9bc1SBen Hutchings 1027bc55dcd8SAdrian Hunter static const struct sdhci_pci_fixes sdhci_intel_glk_emmc = { 1028bc55dcd8SAdrian Hunter .allow_runtime_pm = true, 1029bc55dcd8SAdrian Hunter .probe_slot = glk_emmc_probe_slot, 10308ee82bdaSAdrian Hunter .add_host = glk_emmc_add_host, 10318ee82bdaSAdrian Hunter #ifdef CONFIG_PM_SLEEP 10328ee82bdaSAdrian Hunter .suspend = sdhci_cqhci_suspend, 10338ee82bdaSAdrian Hunter .resume = sdhci_cqhci_resume, 10348ee82bdaSAdrian Hunter #endif 10358ee82bdaSAdrian Hunter #ifdef CONFIG_PM 10365305ec6aSAdrian Hunter .runtime_suspend = glk_runtime_suspend, 10375305ec6aSAdrian Hunter .runtime_resume = glk_runtime_resume, 10388ee82bdaSAdrian Hunter #endif 1039aeae6ad3SAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | 1040aeae6ad3SAdrian Hunter SDHCI_QUIRK_NO_LED, 1041bc55dcd8SAdrian Hunter .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | 1042bc55dcd8SAdrian Hunter SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 | 1043bc55dcd8SAdrian Hunter SDHCI_QUIRK2_STOP_WITH_TC, 10448ee82bdaSAdrian Hunter .ops = &sdhci_intel_glk_ops, 1045bc55dcd8SAdrian Hunter .priv_size = sizeof(struct intel_host), 1046bc55dcd8SAdrian Hunter }; 1047bc55dcd8SAdrian Hunter 104842b06496SZach Brown static const struct sdhci_pci_fixes sdhci_ni_byt_sdio = { 10490a49a619SAdrian Hunter #ifdef CONFIG_PM_SLEEP 10500a49a619SAdrian Hunter .resume = byt_resume, 10510a49a619SAdrian Hunter #endif 10520a49a619SAdrian Hunter #ifdef CONFIG_PM 10530a49a619SAdrian Hunter .runtime_resume = byt_runtime_resume, 10540a49a619SAdrian Hunter #endif 1055aeae6ad3SAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | 1056aeae6ad3SAdrian Hunter SDHCI_QUIRK_NO_LED, 105742b06496SZach Brown .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON | 105842b06496SZach Brown SDHCI_QUIRK2_PRESET_VALUE_BROKEN, 105942b06496SZach Brown .allow_runtime_pm = true, 106042b06496SZach Brown .probe_slot = ni_byt_sdio_probe_slot, 106142b06496SZach Brown .ops = &sdhci_intel_byt_ops, 1062c959a6b0SAdrian Hunter .priv_size = sizeof(struct intel_host), 106342b06496SZach Brown }; 106442b06496SZach Brown 1065659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = { 10660a49a619SAdrian Hunter #ifdef CONFIG_PM_SLEEP 10670a49a619SAdrian Hunter .resume = byt_resume, 10680a49a619SAdrian Hunter #endif 10690a49a619SAdrian Hunter #ifdef CONFIG_PM 10700a49a619SAdrian Hunter .runtime_resume = byt_runtime_resume, 10710a49a619SAdrian Hunter #endif 1072aeae6ad3SAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | 1073aeae6ad3SAdrian Hunter SDHCI_QUIRK_NO_LED, 1074659c9bc1SBen Hutchings .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON | 1075659c9bc1SBen Hutchings SDHCI_QUIRK2_PRESET_VALUE_BROKEN, 1076659c9bc1SBen Hutchings .allow_runtime_pm = true, 1077659c9bc1SBen Hutchings .probe_slot = byt_sdio_probe_slot, 1078fee686b7SAdrian Hunter .ops = &sdhci_intel_byt_ops, 1079c959a6b0SAdrian Hunter .priv_size = sizeof(struct intel_host), 1080659c9bc1SBen Hutchings }; 1081659c9bc1SBen Hutchings 1082659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { 10830a49a619SAdrian Hunter #ifdef CONFIG_PM_SLEEP 10840a49a619SAdrian Hunter .resume = byt_resume, 10850a49a619SAdrian Hunter #endif 10860a49a619SAdrian Hunter #ifdef CONFIG_PM 10870a49a619SAdrian Hunter .runtime_resume = byt_runtime_resume, 10880a49a619SAdrian Hunter #endif 1089aeae6ad3SAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | 1090aeae6ad3SAdrian Hunter SDHCI_QUIRK_NO_LED, 1091659c9bc1SBen Hutchings .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON | 1092659c9bc1SBen Hutchings SDHCI_QUIRK2_PRESET_VALUE_BROKEN | 1093659c9bc1SBen Hutchings SDHCI_QUIRK2_STOP_WITH_TC, 1094659c9bc1SBen Hutchings .allow_runtime_pm = true, 1095659c9bc1SBen Hutchings .own_cd_for_runtime_pm = true, 1096659c9bc1SBen Hutchings .probe_slot = byt_sd_probe_slot, 1097fee686b7SAdrian Hunter .ops = &sdhci_intel_byt_ops, 1098c959a6b0SAdrian Hunter .priv_size = sizeof(struct intel_host), 1099659c9bc1SBen Hutchings }; 1100659c9bc1SBen Hutchings 1101659c9bc1SBen Hutchings /* Define Host controllers for Intel Merrifield platform */ 11021f64cec2SAndy Shevchenko #define INTEL_MRFLD_EMMC_0 0 11031f64cec2SAndy Shevchenko #define INTEL_MRFLD_EMMC_1 1 11044674b6c8SAndy Shevchenko #define INTEL_MRFLD_SD 2 1105d5565577SAndy Shevchenko #define INTEL_MRFLD_SDIO 3 1106659c9bc1SBen Hutchings 11070e39220eSAndy Shevchenko #ifdef CONFIG_ACPI 11080e39220eSAndy Shevchenko static void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot) 11090e39220eSAndy Shevchenko { 11100e39220eSAndy Shevchenko struct acpi_device *device, *child; 11110e39220eSAndy Shevchenko 11120e39220eSAndy Shevchenko device = ACPI_COMPANION(&slot->chip->pdev->dev); 11130e39220eSAndy Shevchenko if (!device) 11140e39220eSAndy Shevchenko return; 11150e39220eSAndy Shevchenko 11160e39220eSAndy Shevchenko acpi_device_fix_up_power(device); 11170e39220eSAndy Shevchenko list_for_each_entry(child, &device->children, node) 11180e39220eSAndy Shevchenko if (child->status.present && child->status.enabled) 11190e39220eSAndy Shevchenko acpi_device_fix_up_power(child); 11200e39220eSAndy Shevchenko } 11210e39220eSAndy Shevchenko #else 11220e39220eSAndy Shevchenko static inline void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot) {} 11230e39220eSAndy Shevchenko #endif 11240e39220eSAndy Shevchenko 11251f64cec2SAndy Shevchenko static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot) 1126659c9bc1SBen Hutchings { 11272e57bbe2SAndy Shevchenko unsigned int func = PCI_FUNC(slot->chip->pdev->devfn); 11282e57bbe2SAndy Shevchenko 11292e57bbe2SAndy Shevchenko switch (func) { 11302e57bbe2SAndy Shevchenko case INTEL_MRFLD_EMMC_0: 11312e57bbe2SAndy Shevchenko case INTEL_MRFLD_EMMC_1: 11322e57bbe2SAndy Shevchenko slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE | 11332e57bbe2SAndy Shevchenko MMC_CAP_8_BIT_DATA | 11342e57bbe2SAndy Shevchenko MMC_CAP_1_8V_DDR; 11352e57bbe2SAndy Shevchenko break; 11364674b6c8SAndy Shevchenko case INTEL_MRFLD_SD: 11374674b6c8SAndy Shevchenko slot->host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; 11384674b6c8SAndy Shevchenko break; 1139d5565577SAndy Shevchenko case INTEL_MRFLD_SDIO: 11402a609abeSAndy Shevchenko /* Advertise 2.0v for compatibility with the SDIO card's OCR */ 11412a609abeSAndy Shevchenko slot->host->ocr_mask = MMC_VDD_20_21 | MMC_VDD_165_195; 1142d5565577SAndy Shevchenko slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE | 1143d5565577SAndy Shevchenko MMC_CAP_POWER_OFF_CARD; 1144d5565577SAndy Shevchenko break; 11452e57bbe2SAndy Shevchenko default: 1146659c9bc1SBen Hutchings return -ENODEV; 11472e57bbe2SAndy Shevchenko } 11480e39220eSAndy Shevchenko 11490e39220eSAndy Shevchenko intel_mrfld_mmc_fix_up_power_slot(slot); 1150659c9bc1SBen Hutchings return 0; 1151659c9bc1SBen Hutchings } 1152659c9bc1SBen Hutchings 11531f64cec2SAndy Shevchenko static const struct sdhci_pci_fixes sdhci_intel_mrfld_mmc = { 1154659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 1155659c9bc1SBen Hutchings .quirks2 = SDHCI_QUIRK2_BROKEN_HS200 | 1156659c9bc1SBen Hutchings SDHCI_QUIRK2_PRESET_VALUE_BROKEN, 1157659c9bc1SBen Hutchings .allow_runtime_pm = true, 11581f64cec2SAndy Shevchenko .probe_slot = intel_mrfld_mmc_probe_slot, 1159659c9bc1SBen Hutchings }; 1160659c9bc1SBen Hutchings 1161659c9bc1SBen Hutchings static int jmicron_pmos(struct sdhci_pci_chip *chip, int on) 1162659c9bc1SBen Hutchings { 1163659c9bc1SBen Hutchings u8 scratch; 1164659c9bc1SBen Hutchings int ret; 1165659c9bc1SBen Hutchings 1166659c9bc1SBen Hutchings ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch); 1167659c9bc1SBen Hutchings if (ret) 1168659c9bc1SBen Hutchings return ret; 1169659c9bc1SBen Hutchings 1170659c9bc1SBen Hutchings /* 1171659c9bc1SBen Hutchings * Turn PMOS on [bit 0], set over current detection to 2.4 V 1172659c9bc1SBen Hutchings * [bit 1:2] and enable over current debouncing [bit 6]. 1173659c9bc1SBen Hutchings */ 1174659c9bc1SBen Hutchings if (on) 1175659c9bc1SBen Hutchings scratch |= 0x47; 1176659c9bc1SBen Hutchings else 1177659c9bc1SBen Hutchings scratch &= ~0x47; 1178659c9bc1SBen Hutchings 11797582041fSkbuild test robot return pci_write_config_byte(chip->pdev, 0xAE, scratch); 1180659c9bc1SBen Hutchings } 1181659c9bc1SBen Hutchings 1182659c9bc1SBen Hutchings static int jmicron_probe(struct sdhci_pci_chip *chip) 1183659c9bc1SBen Hutchings { 1184659c9bc1SBen Hutchings int ret; 1185659c9bc1SBen Hutchings u16 mmcdev = 0; 1186659c9bc1SBen Hutchings 1187659c9bc1SBen Hutchings if (chip->pdev->revision == 0) { 1188659c9bc1SBen Hutchings chip->quirks |= SDHCI_QUIRK_32BIT_DMA_ADDR | 1189659c9bc1SBen Hutchings SDHCI_QUIRK_32BIT_DMA_SIZE | 1190659c9bc1SBen Hutchings SDHCI_QUIRK_32BIT_ADMA_SIZE | 1191659c9bc1SBen Hutchings SDHCI_QUIRK_RESET_AFTER_REQUEST | 1192659c9bc1SBen Hutchings SDHCI_QUIRK_BROKEN_SMALL_PIO; 1193659c9bc1SBen Hutchings } 1194659c9bc1SBen Hutchings 1195659c9bc1SBen Hutchings /* 1196659c9bc1SBen Hutchings * JMicron chips can have two interfaces to the same hardware 1197659c9bc1SBen Hutchings * in order to work around limitations in Microsoft's driver. 1198659c9bc1SBen Hutchings * We need to make sure we only bind to one of them. 1199659c9bc1SBen Hutchings * 1200659c9bc1SBen Hutchings * This code assumes two things: 1201659c9bc1SBen Hutchings * 1202659c9bc1SBen Hutchings * 1. The PCI code adds subfunctions in order. 1203659c9bc1SBen Hutchings * 1204659c9bc1SBen Hutchings * 2. The MMC interface has a lower subfunction number 1205659c9bc1SBen Hutchings * than the SD interface. 1206659c9bc1SBen Hutchings */ 1207659c9bc1SBen Hutchings if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_SD) 1208659c9bc1SBen Hutchings mmcdev = PCI_DEVICE_ID_JMICRON_JMB38X_MMC; 1209659c9bc1SBen Hutchings else if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD) 1210659c9bc1SBen Hutchings mmcdev = PCI_DEVICE_ID_JMICRON_JMB388_ESD; 1211659c9bc1SBen Hutchings 1212659c9bc1SBen Hutchings if (mmcdev) { 1213659c9bc1SBen Hutchings struct pci_dev *sd_dev; 1214659c9bc1SBen Hutchings 1215659c9bc1SBen Hutchings sd_dev = NULL; 1216659c9bc1SBen Hutchings while ((sd_dev = pci_get_device(PCI_VENDOR_ID_JMICRON, 1217659c9bc1SBen Hutchings mmcdev, sd_dev)) != NULL) { 1218659c9bc1SBen Hutchings if ((PCI_SLOT(chip->pdev->devfn) == 1219659c9bc1SBen Hutchings PCI_SLOT(sd_dev->devfn)) && 1220659c9bc1SBen Hutchings (chip->pdev->bus == sd_dev->bus)) 1221659c9bc1SBen Hutchings break; 1222659c9bc1SBen Hutchings } 1223659c9bc1SBen Hutchings 1224659c9bc1SBen Hutchings if (sd_dev) { 1225659c9bc1SBen Hutchings pci_dev_put(sd_dev); 1226659c9bc1SBen Hutchings dev_info(&chip->pdev->dev, "Refusing to bind to " 1227659c9bc1SBen Hutchings "secondary interface.\n"); 1228659c9bc1SBen Hutchings return -ENODEV; 1229659c9bc1SBen Hutchings } 1230659c9bc1SBen Hutchings } 1231659c9bc1SBen Hutchings 1232659c9bc1SBen Hutchings /* 1233659c9bc1SBen Hutchings * JMicron chips need a bit of a nudge to enable the power 1234659c9bc1SBen Hutchings * output pins. 1235659c9bc1SBen Hutchings */ 1236659c9bc1SBen Hutchings ret = jmicron_pmos(chip, 1); 1237659c9bc1SBen Hutchings if (ret) { 1238659c9bc1SBen Hutchings dev_err(&chip->pdev->dev, "Failure enabling card power\n"); 1239659c9bc1SBen Hutchings return ret; 1240659c9bc1SBen Hutchings } 1241659c9bc1SBen Hutchings 1242659c9bc1SBen Hutchings /* quirk for unsable RO-detection on JM388 chips */ 1243659c9bc1SBen Hutchings if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD || 1244659c9bc1SBen Hutchings chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) 1245659c9bc1SBen Hutchings chip->quirks |= SDHCI_QUIRK_UNSTABLE_RO_DETECT; 1246659c9bc1SBen Hutchings 1247659c9bc1SBen Hutchings return 0; 1248659c9bc1SBen Hutchings } 1249659c9bc1SBen Hutchings 1250659c9bc1SBen Hutchings static void jmicron_enable_mmc(struct sdhci_host *host, int on) 1251659c9bc1SBen Hutchings { 1252659c9bc1SBen Hutchings u8 scratch; 1253659c9bc1SBen Hutchings 1254659c9bc1SBen Hutchings scratch = readb(host->ioaddr + 0xC0); 1255659c9bc1SBen Hutchings 1256659c9bc1SBen Hutchings if (on) 1257659c9bc1SBen Hutchings scratch |= 0x01; 1258659c9bc1SBen Hutchings else 1259659c9bc1SBen Hutchings scratch &= ~0x01; 1260659c9bc1SBen Hutchings 1261659c9bc1SBen Hutchings writeb(scratch, host->ioaddr + 0xC0); 1262659c9bc1SBen Hutchings } 1263659c9bc1SBen Hutchings 1264659c9bc1SBen Hutchings static int jmicron_probe_slot(struct sdhci_pci_slot *slot) 1265659c9bc1SBen Hutchings { 1266659c9bc1SBen Hutchings if (slot->chip->pdev->revision == 0) { 1267659c9bc1SBen Hutchings u16 version; 1268659c9bc1SBen Hutchings 1269659c9bc1SBen Hutchings version = readl(slot->host->ioaddr + SDHCI_HOST_VERSION); 1270659c9bc1SBen Hutchings version = (version & SDHCI_VENDOR_VER_MASK) >> 1271659c9bc1SBen Hutchings SDHCI_VENDOR_VER_SHIFT; 1272659c9bc1SBen Hutchings 1273659c9bc1SBen Hutchings /* 1274659c9bc1SBen Hutchings * Older versions of the chip have lots of nasty glitches 1275659c9bc1SBen Hutchings * in the ADMA engine. It's best just to avoid it 1276659c9bc1SBen Hutchings * completely. 1277659c9bc1SBen Hutchings */ 1278659c9bc1SBen Hutchings if (version < 0xAC) 1279659c9bc1SBen Hutchings slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA; 1280659c9bc1SBen Hutchings } 1281659c9bc1SBen Hutchings 1282659c9bc1SBen Hutchings /* JM388 MMC doesn't support 1.8V while SD supports it */ 1283659c9bc1SBen Hutchings if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) { 1284659c9bc1SBen Hutchings slot->host->ocr_avail_sd = MMC_VDD_32_33 | MMC_VDD_33_34 | 1285659c9bc1SBen Hutchings MMC_VDD_29_30 | MMC_VDD_30_31 | 1286659c9bc1SBen Hutchings MMC_VDD_165_195; /* allow 1.8V */ 1287659c9bc1SBen Hutchings slot->host->ocr_avail_mmc = MMC_VDD_32_33 | MMC_VDD_33_34 | 1288659c9bc1SBen Hutchings MMC_VDD_29_30 | MMC_VDD_30_31; /* no 1.8V for MMC */ 1289659c9bc1SBen Hutchings } 1290659c9bc1SBen Hutchings 1291659c9bc1SBen Hutchings /* 1292659c9bc1SBen Hutchings * The secondary interface requires a bit set to get the 1293659c9bc1SBen Hutchings * interrupts. 1294659c9bc1SBen Hutchings */ 1295659c9bc1SBen Hutchings if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || 1296659c9bc1SBen Hutchings slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) 1297659c9bc1SBen Hutchings jmicron_enable_mmc(slot->host, 1); 1298659c9bc1SBen Hutchings 1299659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST; 1300659c9bc1SBen Hutchings 1301659c9bc1SBen Hutchings return 0; 1302659c9bc1SBen Hutchings } 1303659c9bc1SBen Hutchings 1304659c9bc1SBen Hutchings static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead) 1305659c9bc1SBen Hutchings { 1306659c9bc1SBen Hutchings if (dead) 1307659c9bc1SBen Hutchings return; 1308659c9bc1SBen Hutchings 1309659c9bc1SBen Hutchings if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || 1310659c9bc1SBen Hutchings slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) 1311659c9bc1SBen Hutchings jmicron_enable_mmc(slot->host, 0); 1312659c9bc1SBen Hutchings } 1313659c9bc1SBen Hutchings 1314b7813f0fSAdrian Hunter #ifdef CONFIG_PM_SLEEP 1315659c9bc1SBen Hutchings static int jmicron_suspend(struct sdhci_pci_chip *chip) 1316659c9bc1SBen Hutchings { 131730cf2803SAdrian Hunter int i, ret; 131830cf2803SAdrian Hunter 13195c3c6126SAdrian Hunter ret = sdhci_pci_suspend_host(chip); 132030cf2803SAdrian Hunter if (ret) 132130cf2803SAdrian Hunter return ret; 1322659c9bc1SBen Hutchings 1323659c9bc1SBen Hutchings if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || 1324659c9bc1SBen Hutchings chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) { 1325659c9bc1SBen Hutchings for (i = 0; i < chip->num_slots; i++) 1326659c9bc1SBen Hutchings jmicron_enable_mmc(chip->slots[i]->host, 0); 1327659c9bc1SBen Hutchings } 1328659c9bc1SBen Hutchings 1329659c9bc1SBen Hutchings return 0; 1330659c9bc1SBen Hutchings } 1331659c9bc1SBen Hutchings 1332659c9bc1SBen Hutchings static int jmicron_resume(struct sdhci_pci_chip *chip) 1333659c9bc1SBen Hutchings { 1334659c9bc1SBen Hutchings int ret, i; 1335659c9bc1SBen Hutchings 1336659c9bc1SBen Hutchings if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC || 1337659c9bc1SBen Hutchings chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) { 1338659c9bc1SBen Hutchings for (i = 0; i < chip->num_slots; i++) 1339659c9bc1SBen Hutchings jmicron_enable_mmc(chip->slots[i]->host, 1); 1340659c9bc1SBen Hutchings } 1341659c9bc1SBen Hutchings 1342659c9bc1SBen Hutchings ret = jmicron_pmos(chip, 1); 1343659c9bc1SBen Hutchings if (ret) { 1344659c9bc1SBen Hutchings dev_err(&chip->pdev->dev, "Failure enabling card power\n"); 1345659c9bc1SBen Hutchings return ret; 1346659c9bc1SBen Hutchings } 1347659c9bc1SBen Hutchings 134830cf2803SAdrian Hunter return sdhci_pci_resume_host(chip); 1349659c9bc1SBen Hutchings } 1350b7813f0fSAdrian Hunter #endif 1351659c9bc1SBen Hutchings 1352659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_jmicron = { 1353659c9bc1SBen Hutchings .probe = jmicron_probe, 1354659c9bc1SBen Hutchings 1355659c9bc1SBen Hutchings .probe_slot = jmicron_probe_slot, 1356659c9bc1SBen Hutchings .remove_slot = jmicron_remove_slot, 1357659c9bc1SBen Hutchings 1358b7813f0fSAdrian Hunter #ifdef CONFIG_PM_SLEEP 1359659c9bc1SBen Hutchings .suspend = jmicron_suspend, 1360659c9bc1SBen Hutchings .resume = jmicron_resume, 1361b7813f0fSAdrian Hunter #endif 1362659c9bc1SBen Hutchings }; 1363659c9bc1SBen Hutchings 1364659c9bc1SBen Hutchings /* SysKonnect CardBus2SDIO extra registers */ 1365659c9bc1SBen Hutchings #define SYSKT_CTRL 0x200 1366659c9bc1SBen Hutchings #define SYSKT_RDFIFO_STAT 0x204 1367659c9bc1SBen Hutchings #define SYSKT_WRFIFO_STAT 0x208 1368659c9bc1SBen Hutchings #define SYSKT_POWER_DATA 0x20c 1369659c9bc1SBen Hutchings #define SYSKT_POWER_330 0xef 1370659c9bc1SBen Hutchings #define SYSKT_POWER_300 0xf8 1371659c9bc1SBen Hutchings #define SYSKT_POWER_184 0xcc 1372659c9bc1SBen Hutchings #define SYSKT_POWER_CMD 0x20d 1373659c9bc1SBen Hutchings #define SYSKT_POWER_START (1 << 7) 1374659c9bc1SBen Hutchings #define SYSKT_POWER_STATUS 0x20e 1375659c9bc1SBen Hutchings #define SYSKT_POWER_STATUS_OK (1 << 0) 1376659c9bc1SBen Hutchings #define SYSKT_BOARD_REV 0x210 1377659c9bc1SBen Hutchings #define SYSKT_CHIP_REV 0x211 1378659c9bc1SBen Hutchings #define SYSKT_CONF_DATA 0x212 1379659c9bc1SBen Hutchings #define SYSKT_CONF_DATA_1V8 (1 << 2) 1380659c9bc1SBen Hutchings #define SYSKT_CONF_DATA_2V5 (1 << 1) 1381659c9bc1SBen Hutchings #define SYSKT_CONF_DATA_3V3 (1 << 0) 1382659c9bc1SBen Hutchings 1383659c9bc1SBen Hutchings static int syskt_probe(struct sdhci_pci_chip *chip) 1384659c9bc1SBen Hutchings { 1385659c9bc1SBen Hutchings if ((chip->pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) { 1386659c9bc1SBen Hutchings chip->pdev->class &= ~0x0000FF; 1387659c9bc1SBen Hutchings chip->pdev->class |= PCI_SDHCI_IFDMA; 1388659c9bc1SBen Hutchings } 1389659c9bc1SBen Hutchings return 0; 1390659c9bc1SBen Hutchings } 1391659c9bc1SBen Hutchings 1392659c9bc1SBen Hutchings static int syskt_probe_slot(struct sdhci_pci_slot *slot) 1393659c9bc1SBen Hutchings { 1394659c9bc1SBen Hutchings int tm, ps; 1395659c9bc1SBen Hutchings 1396659c9bc1SBen Hutchings u8 board_rev = readb(slot->host->ioaddr + SYSKT_BOARD_REV); 1397659c9bc1SBen Hutchings u8 chip_rev = readb(slot->host->ioaddr + SYSKT_CHIP_REV); 1398659c9bc1SBen Hutchings dev_info(&slot->chip->pdev->dev, "SysKonnect CardBus2SDIO, " 1399659c9bc1SBen Hutchings "board rev %d.%d, chip rev %d.%d\n", 1400659c9bc1SBen Hutchings board_rev >> 4, board_rev & 0xf, 1401659c9bc1SBen Hutchings chip_rev >> 4, chip_rev & 0xf); 1402659c9bc1SBen Hutchings if (chip_rev >= 0x20) 1403659c9bc1SBen Hutchings slot->host->quirks |= SDHCI_QUIRK_FORCE_DMA; 1404659c9bc1SBen Hutchings 1405659c9bc1SBen Hutchings writeb(SYSKT_POWER_330, slot->host->ioaddr + SYSKT_POWER_DATA); 1406659c9bc1SBen Hutchings writeb(SYSKT_POWER_START, slot->host->ioaddr + SYSKT_POWER_CMD); 1407659c9bc1SBen Hutchings udelay(50); 1408659c9bc1SBen Hutchings tm = 10; /* Wait max 1 ms */ 1409659c9bc1SBen Hutchings do { 1410659c9bc1SBen Hutchings ps = readw(slot->host->ioaddr + SYSKT_POWER_STATUS); 1411659c9bc1SBen Hutchings if (ps & SYSKT_POWER_STATUS_OK) 1412659c9bc1SBen Hutchings break; 1413659c9bc1SBen Hutchings udelay(100); 1414659c9bc1SBen Hutchings } while (--tm); 1415659c9bc1SBen Hutchings if (!tm) { 1416659c9bc1SBen Hutchings dev_err(&slot->chip->pdev->dev, 1417659c9bc1SBen Hutchings "power regulator never stabilized"); 1418659c9bc1SBen Hutchings writeb(0, slot->host->ioaddr + SYSKT_POWER_CMD); 1419659c9bc1SBen Hutchings return -ENODEV; 1420659c9bc1SBen Hutchings } 1421659c9bc1SBen Hutchings 1422659c9bc1SBen Hutchings return 0; 1423659c9bc1SBen Hutchings } 1424659c9bc1SBen Hutchings 1425659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_syskt = { 1426659c9bc1SBen Hutchings .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER, 1427659c9bc1SBen Hutchings .probe = syskt_probe, 1428659c9bc1SBen Hutchings .probe_slot = syskt_probe_slot, 1429659c9bc1SBen Hutchings }; 1430659c9bc1SBen Hutchings 1431659c9bc1SBen Hutchings static int via_probe(struct sdhci_pci_chip *chip) 1432659c9bc1SBen Hutchings { 1433659c9bc1SBen Hutchings if (chip->pdev->revision == 0x10) 1434659c9bc1SBen Hutchings chip->quirks |= SDHCI_QUIRK_DELAY_AFTER_POWER; 1435659c9bc1SBen Hutchings 1436659c9bc1SBen Hutchings return 0; 1437659c9bc1SBen Hutchings } 1438659c9bc1SBen Hutchings 1439659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_via = { 1440659c9bc1SBen Hutchings .probe = via_probe, 1441659c9bc1SBen Hutchings }; 1442659c9bc1SBen Hutchings 1443659c9bc1SBen Hutchings static int rtsx_probe_slot(struct sdhci_pci_slot *slot) 1444659c9bc1SBen Hutchings { 1445659c9bc1SBen Hutchings slot->host->mmc->caps2 |= MMC_CAP2_HS200; 1446659c9bc1SBen Hutchings return 0; 1447659c9bc1SBen Hutchings } 1448659c9bc1SBen Hutchings 1449659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_rtsx = { 1450659c9bc1SBen Hutchings .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | 1451659c9bc1SBen Hutchings SDHCI_QUIRK2_BROKEN_64_BIT_DMA | 1452659c9bc1SBen Hutchings SDHCI_QUIRK2_BROKEN_DDR50, 1453659c9bc1SBen Hutchings .probe_slot = rtsx_probe_slot, 1454659c9bc1SBen Hutchings }; 1455659c9bc1SBen Hutchings 1456659c9bc1SBen Hutchings /*AMD chipset generation*/ 1457659c9bc1SBen Hutchings enum amd_chipset_gen { 1458659c9bc1SBen Hutchings AMD_CHIPSET_BEFORE_ML, 1459659c9bc1SBen Hutchings AMD_CHIPSET_CZ, 1460659c9bc1SBen Hutchings AMD_CHIPSET_NL, 1461659c9bc1SBen Hutchings AMD_CHIPSET_UNKNOWN, 1462659c9bc1SBen Hutchings }; 1463659c9bc1SBen Hutchings 1464c31165d7SShyam Sundar S K /* AMD registers */ 1465c31165d7SShyam Sundar S K #define AMD_SD_AUTO_PATTERN 0xB8 1466c31165d7SShyam Sundar S K #define AMD_MSLEEP_DURATION 4 1467c31165d7SShyam Sundar S K #define AMD_SD_MISC_CONTROL 0xD0 1468c31165d7SShyam Sundar S K #define AMD_MAX_TUNE_VALUE 0x0B 1469c31165d7SShyam Sundar S K #define AMD_AUTO_TUNE_SEL 0x10800 1470c31165d7SShyam Sundar S K #define AMD_FIFO_PTR 0x30 1471c31165d7SShyam Sundar S K #define AMD_BIT_MASK 0x1F 1472c31165d7SShyam Sundar S K 1473c31165d7SShyam Sundar S K static void amd_tuning_reset(struct sdhci_host *host) 1474c31165d7SShyam Sundar S K { 1475c31165d7SShyam Sundar S K unsigned int val; 1476c31165d7SShyam Sundar S K 1477c31165d7SShyam Sundar S K val = sdhci_readw(host, SDHCI_HOST_CONTROL2); 1478c31165d7SShyam Sundar S K val |= SDHCI_CTRL_PRESET_VAL_ENABLE | SDHCI_CTRL_EXEC_TUNING; 1479c31165d7SShyam Sundar S K sdhci_writew(host, val, SDHCI_HOST_CONTROL2); 1480c31165d7SShyam Sundar S K 1481c31165d7SShyam Sundar S K val = sdhci_readw(host, SDHCI_HOST_CONTROL2); 1482c31165d7SShyam Sundar S K val &= ~SDHCI_CTRL_EXEC_TUNING; 1483c31165d7SShyam Sundar S K sdhci_writew(host, val, SDHCI_HOST_CONTROL2); 1484c31165d7SShyam Sundar S K } 1485c31165d7SShyam Sundar S K 1486c31165d7SShyam Sundar S K static void amd_config_tuning_phase(struct pci_dev *pdev, u8 phase) 1487c31165d7SShyam Sundar S K { 1488c31165d7SShyam Sundar S K unsigned int val; 1489c31165d7SShyam Sundar S K 1490c31165d7SShyam Sundar S K pci_read_config_dword(pdev, AMD_SD_AUTO_PATTERN, &val); 1491c31165d7SShyam Sundar S K val &= ~AMD_BIT_MASK; 1492c31165d7SShyam Sundar S K val |= (AMD_AUTO_TUNE_SEL | (phase << 1)); 1493c31165d7SShyam Sundar S K pci_write_config_dword(pdev, AMD_SD_AUTO_PATTERN, val); 1494c31165d7SShyam Sundar S K } 1495c31165d7SShyam Sundar S K 1496c31165d7SShyam Sundar S K static void amd_enable_manual_tuning(struct pci_dev *pdev) 1497c31165d7SShyam Sundar S K { 1498c31165d7SShyam Sundar S K unsigned int val; 1499c31165d7SShyam Sundar S K 1500c31165d7SShyam Sundar S K pci_read_config_dword(pdev, AMD_SD_MISC_CONTROL, &val); 1501c31165d7SShyam Sundar S K val |= AMD_FIFO_PTR; 1502c31165d7SShyam Sundar S K pci_write_config_dword(pdev, AMD_SD_MISC_CONTROL, val); 1503c31165d7SShyam Sundar S K } 1504c31165d7SShyam Sundar S K 1505300ad899SDaniel Kurtz static int amd_execute_tuning_hs200(struct sdhci_host *host, u32 opcode) 1506c31165d7SShyam Sundar S K { 1507c31165d7SShyam Sundar S K struct sdhci_pci_slot *slot = sdhci_priv(host); 1508c31165d7SShyam Sundar S K struct pci_dev *pdev = slot->chip->pdev; 1509c31165d7SShyam Sundar S K u8 valid_win = 0; 1510c31165d7SShyam Sundar S K u8 valid_win_max = 0; 1511c31165d7SShyam Sundar S K u8 valid_win_end = 0; 1512c31165d7SShyam Sundar S K u8 ctrl, tune_around; 1513c31165d7SShyam Sundar S K 1514c31165d7SShyam Sundar S K amd_tuning_reset(host); 1515c31165d7SShyam Sundar S K 1516c31165d7SShyam Sundar S K for (tune_around = 0; tune_around < 12; tune_around++) { 1517c31165d7SShyam Sundar S K amd_config_tuning_phase(pdev, tune_around); 1518c31165d7SShyam Sundar S K 1519c31165d7SShyam Sundar S K if (mmc_send_tuning(host->mmc, opcode, NULL)) { 1520c31165d7SShyam Sundar S K valid_win = 0; 1521c31165d7SShyam Sundar S K msleep(AMD_MSLEEP_DURATION); 1522c31165d7SShyam Sundar S K ctrl = SDHCI_RESET_CMD | SDHCI_RESET_DATA; 1523c31165d7SShyam Sundar S K sdhci_writeb(host, ctrl, SDHCI_SOFTWARE_RESET); 1524c31165d7SShyam Sundar S K } else if (++valid_win > valid_win_max) { 1525c31165d7SShyam Sundar S K valid_win_max = valid_win; 1526c31165d7SShyam Sundar S K valid_win_end = tune_around; 1527c31165d7SShyam Sundar S K } 1528c31165d7SShyam Sundar S K } 1529c31165d7SShyam Sundar S K 1530c31165d7SShyam Sundar S K if (!valid_win_max) { 1531c31165d7SShyam Sundar S K dev_err(&pdev->dev, "no tuning point found\n"); 1532c31165d7SShyam Sundar S K return -EIO; 1533c31165d7SShyam Sundar S K } 1534c31165d7SShyam Sundar S K 1535c31165d7SShyam Sundar S K amd_config_tuning_phase(pdev, valid_win_end - valid_win_max / 2); 1536c31165d7SShyam Sundar S K 1537c31165d7SShyam Sundar S K amd_enable_manual_tuning(pdev); 1538c31165d7SShyam Sundar S K 1539c31165d7SShyam Sundar S K host->mmc->retune_period = 0; 1540c31165d7SShyam Sundar S K 1541c31165d7SShyam Sundar S K return 0; 1542c31165d7SShyam Sundar S K } 1543c31165d7SShyam Sundar S K 1544300ad899SDaniel Kurtz static int amd_execute_tuning(struct mmc_host *mmc, u32 opcode) 1545300ad899SDaniel Kurtz { 1546300ad899SDaniel Kurtz struct sdhci_host *host = mmc_priv(mmc); 1547300ad899SDaniel Kurtz 1548300ad899SDaniel Kurtz /* AMD requires custom HS200 tuning */ 1549300ad899SDaniel Kurtz if (host->timing == MMC_TIMING_MMC_HS200) 1550300ad899SDaniel Kurtz return amd_execute_tuning_hs200(host, opcode); 1551300ad899SDaniel Kurtz 1552300ad899SDaniel Kurtz /* Otherwise perform standard SDHCI tuning */ 1553300ad899SDaniel Kurtz return sdhci_execute_tuning(mmc, opcode); 1554300ad899SDaniel Kurtz } 1555300ad899SDaniel Kurtz 1556300ad899SDaniel Kurtz static int amd_probe_slot(struct sdhci_pci_slot *slot) 1557300ad899SDaniel Kurtz { 1558300ad899SDaniel Kurtz struct mmc_host_ops *ops = &slot->host->mmc_host_ops; 1559300ad899SDaniel Kurtz 1560300ad899SDaniel Kurtz ops->execute_tuning = amd_execute_tuning; 1561300ad899SDaniel Kurtz 1562300ad899SDaniel Kurtz return 0; 1563300ad899SDaniel Kurtz } 1564300ad899SDaniel Kurtz 1565659c9bc1SBen Hutchings static int amd_probe(struct sdhci_pci_chip *chip) 1566659c9bc1SBen Hutchings { 1567659c9bc1SBen Hutchings struct pci_dev *smbus_dev; 1568659c9bc1SBen Hutchings enum amd_chipset_gen gen; 1569659c9bc1SBen Hutchings 1570659c9bc1SBen Hutchings smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, 1571659c9bc1SBen Hutchings PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL); 1572659c9bc1SBen Hutchings if (smbus_dev) { 1573659c9bc1SBen Hutchings gen = AMD_CHIPSET_BEFORE_ML; 1574659c9bc1SBen Hutchings } else { 1575659c9bc1SBen Hutchings smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, 1576659c9bc1SBen Hutchings PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL); 1577659c9bc1SBen Hutchings if (smbus_dev) { 1578659c9bc1SBen Hutchings if (smbus_dev->revision < 0x51) 1579659c9bc1SBen Hutchings gen = AMD_CHIPSET_CZ; 1580659c9bc1SBen Hutchings else 1581659c9bc1SBen Hutchings gen = AMD_CHIPSET_NL; 1582659c9bc1SBen Hutchings } else { 1583659c9bc1SBen Hutchings gen = AMD_CHIPSET_UNKNOWN; 1584659c9bc1SBen Hutchings } 1585659c9bc1SBen Hutchings } 1586659c9bc1SBen Hutchings 1587c31165d7SShyam Sundar S K if (gen == AMD_CHIPSET_BEFORE_ML || gen == AMD_CHIPSET_CZ) 1588659c9bc1SBen Hutchings chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD; 1589659c9bc1SBen Hutchings 1590659c9bc1SBen Hutchings return 0; 1591659c9bc1SBen Hutchings } 1592659c9bc1SBen Hutchings 1593c31165d7SShyam Sundar S K static const struct sdhci_ops amd_sdhci_pci_ops = { 1594c31165d7SShyam Sundar S K .set_clock = sdhci_set_clock, 1595c31165d7SShyam Sundar S K .enable_dma = sdhci_pci_enable_dma, 1596adc16398SMichał Mirosław .set_bus_width = sdhci_set_bus_width, 1597c31165d7SShyam Sundar S K .reset = sdhci_reset, 1598c31165d7SShyam Sundar S K .set_uhs_signaling = sdhci_set_uhs_signaling, 1599c31165d7SShyam Sundar S K }; 1600c31165d7SShyam Sundar S K 1601659c9bc1SBen Hutchings static const struct sdhci_pci_fixes sdhci_amd = { 1602659c9bc1SBen Hutchings .probe = amd_probe, 1603c31165d7SShyam Sundar S K .ops = &amd_sdhci_pci_ops, 1604300ad899SDaniel Kurtz .probe_slot = amd_probe_slot, 1605659c9bc1SBen Hutchings }; 1606659c9bc1SBen Hutchings 1607659c9bc1SBen Hutchings static const struct pci_device_id pci_ids[] = { 1608c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(RICOH, R5C822, ricoh), 1609c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(RICOH, R5C843, ricoh_mmc), 1610c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(RICOH, R5CE822, ricoh_mmc), 1611c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(RICOH, R5CE823, ricoh_mmc), 1612c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(ENE, CB712_SD, ene_712), 1613c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(ENE, CB712_SD_2, ene_712), 1614c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(ENE, CB714_SD, ene_714), 1615c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(ENE, CB714_SD_2, ene_714), 1616c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(MARVELL, 88ALP01_SD, cafe), 1617c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(JMICRON, JMB38X_SD, jmicron), 1618c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(JMICRON, JMB38X_MMC, jmicron), 1619c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(JMICRON, JMB388_SD, jmicron), 1620c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(JMICRON, JMB388_ESD, jmicron), 1621c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(SYSKONNECT, 8000, syskt), 1622c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(VIA, 95D0, via), 1623c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(REALTEK, 5250, rtsx), 1624c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, QRK_SD, intel_qrk), 1625c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MRST_SD0, intel_mrst_hc0), 1626c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MRST_SD1, intel_mrst_hc1_hc2), 1627c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MRST_SD2, intel_mrst_hc1_hc2), 1628c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MFD_SD, intel_mfd_sd), 1629c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MFD_SDIO1, intel_mfd_sdio), 1630c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MFD_SDIO2, intel_mfd_sdio), 1631c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MFD_EMMC0, intel_mfd_emmc), 1632c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MFD_EMMC1, intel_mfd_emmc), 1633c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, PCH_SDIO0, intel_pch_sdio), 1634c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, PCH_SDIO1, intel_pch_sdio), 1635c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BYT_EMMC, intel_byt_emmc), 1636c949c907SMatthias Kraemer SDHCI_PCI_SUBDEVICE(INTEL, BYT_SDIO, NI, 7884, ni_byt_sdio), 1637c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BYT_SDIO, intel_byt_sdio), 1638c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BYT_SD, intel_byt_sd), 1639c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BYT_EMMC2, intel_byt_emmc), 1640c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BSW_EMMC, intel_byt_emmc), 1641c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BSW_SDIO, intel_byt_sdio), 1642c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BSW_SD, intel_byt_sd), 1643c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, CLV_SDIO0, intel_mfd_sd), 1644c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, CLV_SDIO1, intel_mfd_sdio), 1645c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, CLV_SDIO2, intel_mfd_sdio), 1646c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, CLV_EMMC0, intel_mfd_emmc), 1647c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, CLV_EMMC1, intel_mfd_emmc), 1648c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, MRFLD_MMC, intel_mrfld_mmc), 1649c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, SPT_EMMC, intel_byt_emmc), 1650c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, SPT_SDIO, intel_byt_sdio), 1651c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, SPT_SD, intel_byt_sd), 1652c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, DNV_EMMC, intel_byt_emmc), 1653cdaba732SAdrian Hunter SDHCI_PCI_DEVICE(INTEL, CDF_EMMC, intel_glk_emmc), 1654c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BXT_EMMC, intel_byt_emmc), 1655c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BXT_SDIO, intel_byt_sdio), 1656c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BXT_SD, intel_byt_sd), 1657c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BXTM_EMMC, intel_byt_emmc), 1658c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BXTM_SDIO, intel_byt_sdio), 1659c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, BXTM_SD, intel_byt_sd), 1660c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, APL_EMMC, intel_byt_emmc), 1661c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, APL_SDIO, intel_byt_sdio), 1662c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, APL_SD, intel_byt_sd), 1663bc55dcd8SAdrian Hunter SDHCI_PCI_DEVICE(INTEL, GLK_EMMC, intel_glk_emmc), 1664c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, GLK_SDIO, intel_byt_sdio), 1665c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(INTEL, GLK_SD, intel_byt_sd), 1666bc55dcd8SAdrian Hunter SDHCI_PCI_DEVICE(INTEL, CNP_EMMC, intel_glk_emmc), 1667bc55dcd8SAdrian Hunter SDHCI_PCI_DEVICE(INTEL, CNP_SD, intel_byt_sd), 1668bc55dcd8SAdrian Hunter SDHCI_PCI_DEVICE(INTEL, CNPH_SD, intel_byt_sd), 16695637ffadSAdrian Hunter SDHCI_PCI_DEVICE(INTEL, ICP_EMMC, intel_glk_emmc), 16705637ffadSAdrian Hunter SDHCI_PCI_DEVICE(INTEL, ICP_SD, intel_byt_sd), 1671cb3a7d4aSAdrian Hunter SDHCI_PCI_DEVICE(INTEL, EHL_EMMC, intel_glk_emmc), 1672cb3a7d4aSAdrian Hunter SDHCI_PCI_DEVICE(INTEL, EHL_SD, intel_byt_sd), 1673765c5967SAdrian Hunter SDHCI_PCI_DEVICE(INTEL, CML_EMMC, intel_glk_emmc), 1674765c5967SAdrian Hunter SDHCI_PCI_DEVICE(INTEL, CML_SD, intel_byt_sd), 1675c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, 8120, o2), 1676c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, 8220, o2), 1677c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, 8221, o2), 1678c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, 8320, o2), 1679c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, 8321, o2), 1680c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, FUJIN2, o2), 1681c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, SDS0, o2), 1682c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, SDS1, o2), 1683c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, SEABIRD0, o2), 1684c949c907SMatthias Kraemer SDHCI_PCI_DEVICE(O2, SEABIRD1, o2), 1685d72d72cdSAtul Garg SDHCI_PCI_DEVICE(ARASAN, PHY_EMMC, arasan), 1686152f8204SPrabu Thangamuthu SDHCI_PCI_DEVICE(SYNOPSYS, DWC_MSHC, snps), 1687c949c907SMatthias Kraemer SDHCI_PCI_DEVICE_CLASS(AMD, SYSTEM_SDHCI, PCI_CLASS_MASK, amd), 1688c949c907SMatthias Kraemer /* Generic SD host controller */ 1689c949c907SMatthias Kraemer {PCI_DEVICE_CLASS(SYSTEM_SDHCI, PCI_CLASS_MASK)}, 1690659c9bc1SBen Hutchings { /* end: all zeroes */ }, 1691659c9bc1SBen Hutchings }; 1692659c9bc1SBen Hutchings 1693659c9bc1SBen Hutchings MODULE_DEVICE_TABLE(pci, pci_ids); 1694659c9bc1SBen Hutchings 1695659c9bc1SBen Hutchings /*****************************************************************************\ 1696659c9bc1SBen Hutchings * * 1697659c9bc1SBen Hutchings * SDHCI core callbacks * 1698659c9bc1SBen Hutchings * * 1699659c9bc1SBen Hutchings \*****************************************************************************/ 1700659c9bc1SBen Hutchings 1701d72d72cdSAtul Garg int sdhci_pci_enable_dma(struct sdhci_host *host) 1702659c9bc1SBen Hutchings { 1703659c9bc1SBen Hutchings struct sdhci_pci_slot *slot; 1704659c9bc1SBen Hutchings struct pci_dev *pdev; 1705659c9bc1SBen Hutchings 1706659c9bc1SBen Hutchings slot = sdhci_priv(host); 1707659c9bc1SBen Hutchings pdev = slot->chip->pdev; 1708659c9bc1SBen Hutchings 1709659c9bc1SBen Hutchings if (((pdev->class & 0xFFFF00) == (PCI_CLASS_SYSTEM_SDHCI << 8)) && 1710659c9bc1SBen Hutchings ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA) && 1711659c9bc1SBen Hutchings (host->flags & SDHCI_USE_SDMA)) { 1712659c9bc1SBen Hutchings dev_warn(&pdev->dev, "Will use DMA mode even though HW " 1713659c9bc1SBen Hutchings "doesn't fully claim to support it.\n"); 1714659c9bc1SBen Hutchings } 1715659c9bc1SBen Hutchings 1716659c9bc1SBen Hutchings pci_set_master(pdev); 1717659c9bc1SBen Hutchings 1718659c9bc1SBen Hutchings return 0; 1719659c9bc1SBen Hutchings } 1720659c9bc1SBen Hutchings 1721659c9bc1SBen Hutchings static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host) 1722659c9bc1SBen Hutchings { 1723659c9bc1SBen Hutchings struct sdhci_pci_slot *slot = sdhci_priv(host); 1724659c9bc1SBen Hutchings int rst_n_gpio = slot->rst_n_gpio; 1725659c9bc1SBen Hutchings 1726659c9bc1SBen Hutchings if (!gpio_is_valid(rst_n_gpio)) 1727659c9bc1SBen Hutchings return; 1728659c9bc1SBen Hutchings gpio_set_value_cansleep(rst_n_gpio, 0); 1729659c9bc1SBen Hutchings /* For eMMC, minimum is 1us but give it 10us for good measure */ 1730659c9bc1SBen Hutchings udelay(10); 1731659c9bc1SBen Hutchings gpio_set_value_cansleep(rst_n_gpio, 1); 1732659c9bc1SBen Hutchings /* For eMMC, minimum is 200us but give it 300us for good measure */ 1733659c9bc1SBen Hutchings usleep_range(300, 1000); 1734659c9bc1SBen Hutchings } 1735659c9bc1SBen Hutchings 1736659c9bc1SBen Hutchings static void sdhci_pci_hw_reset(struct sdhci_host *host) 1737659c9bc1SBen Hutchings { 1738659c9bc1SBen Hutchings struct sdhci_pci_slot *slot = sdhci_priv(host); 1739659c9bc1SBen Hutchings 1740659c9bc1SBen Hutchings if (slot->hw_reset) 1741659c9bc1SBen Hutchings slot->hw_reset(host); 1742659c9bc1SBen Hutchings } 1743659c9bc1SBen Hutchings 1744659c9bc1SBen Hutchings static const struct sdhci_ops sdhci_pci_ops = { 1745659c9bc1SBen Hutchings .set_clock = sdhci_set_clock, 1746659c9bc1SBen Hutchings .enable_dma = sdhci_pci_enable_dma, 1747adc16398SMichał Mirosław .set_bus_width = sdhci_set_bus_width, 1748659c9bc1SBen Hutchings .reset = sdhci_reset, 1749659c9bc1SBen Hutchings .set_uhs_signaling = sdhci_set_uhs_signaling, 1750659c9bc1SBen Hutchings .hw_reset = sdhci_pci_hw_reset, 1751659c9bc1SBen Hutchings }; 1752659c9bc1SBen Hutchings 1753659c9bc1SBen Hutchings /*****************************************************************************\ 1754659c9bc1SBen Hutchings * * 1755659c9bc1SBen Hutchings * Suspend/resume * 1756659c9bc1SBen Hutchings * * 1757659c9bc1SBen Hutchings \*****************************************************************************/ 1758659c9bc1SBen Hutchings 1759f9900f15SUlf Hansson #ifdef CONFIG_PM_SLEEP 1760659c9bc1SBen Hutchings static int sdhci_pci_suspend(struct device *dev) 1761659c9bc1SBen Hutchings { 1762659c9bc1SBen Hutchings struct pci_dev *pdev = to_pci_dev(dev); 176330cf2803SAdrian Hunter struct sdhci_pci_chip *chip = pci_get_drvdata(pdev); 1764659c9bc1SBen Hutchings 1765659c9bc1SBen Hutchings if (!chip) 1766659c9bc1SBen Hutchings return 0; 1767659c9bc1SBen Hutchings 176830cf2803SAdrian Hunter if (chip->fixes && chip->fixes->suspend) 176930cf2803SAdrian Hunter return chip->fixes->suspend(chip); 1770659c9bc1SBen Hutchings 177130cf2803SAdrian Hunter return sdhci_pci_suspend_host(chip); 1772659c9bc1SBen Hutchings } 1773659c9bc1SBen Hutchings 1774659c9bc1SBen Hutchings static int sdhci_pci_resume(struct device *dev) 1775659c9bc1SBen Hutchings { 1776659c9bc1SBen Hutchings struct pci_dev *pdev = to_pci_dev(dev); 177730cf2803SAdrian Hunter struct sdhci_pci_chip *chip = pci_get_drvdata(pdev); 1778659c9bc1SBen Hutchings 1779659c9bc1SBen Hutchings if (!chip) 1780659c9bc1SBen Hutchings return 0; 1781659c9bc1SBen Hutchings 178230cf2803SAdrian Hunter if (chip->fixes && chip->fixes->resume) 178330cf2803SAdrian Hunter return chip->fixes->resume(chip); 1784659c9bc1SBen Hutchings 178530cf2803SAdrian Hunter return sdhci_pci_resume_host(chip); 1786659c9bc1SBen Hutchings } 1787f9900f15SUlf Hansson #endif 1788659c9bc1SBen Hutchings 1789f9900f15SUlf Hansson #ifdef CONFIG_PM 1790659c9bc1SBen Hutchings static int sdhci_pci_runtime_suspend(struct device *dev) 1791659c9bc1SBen Hutchings { 1792923a231cSGeliang Tang struct pci_dev *pdev = to_pci_dev(dev); 1793966d696aSAdrian Hunter struct sdhci_pci_chip *chip = pci_get_drvdata(pdev); 1794659c9bc1SBen Hutchings 1795659c9bc1SBen Hutchings if (!chip) 1796659c9bc1SBen Hutchings return 0; 1797659c9bc1SBen Hutchings 1798966d696aSAdrian Hunter if (chip->fixes && chip->fixes->runtime_suspend) 1799966d696aSAdrian Hunter return chip->fixes->runtime_suspend(chip); 1800659c9bc1SBen Hutchings 1801966d696aSAdrian Hunter return sdhci_pci_runtime_suspend_host(chip); 1802659c9bc1SBen Hutchings } 1803659c9bc1SBen Hutchings 1804659c9bc1SBen Hutchings static int sdhci_pci_runtime_resume(struct device *dev) 1805659c9bc1SBen Hutchings { 1806923a231cSGeliang Tang struct pci_dev *pdev = to_pci_dev(dev); 1807966d696aSAdrian Hunter struct sdhci_pci_chip *chip = pci_get_drvdata(pdev); 1808659c9bc1SBen Hutchings 1809659c9bc1SBen Hutchings if (!chip) 1810659c9bc1SBen Hutchings return 0; 1811659c9bc1SBen Hutchings 1812966d696aSAdrian Hunter if (chip->fixes && chip->fixes->runtime_resume) 1813966d696aSAdrian Hunter return chip->fixes->runtime_resume(chip); 1814659c9bc1SBen Hutchings 1815966d696aSAdrian Hunter return sdhci_pci_runtime_resume_host(chip); 1816659c9bc1SBen Hutchings } 1817f9900f15SUlf Hansson #endif 1818659c9bc1SBen Hutchings 1819659c9bc1SBen Hutchings static const struct dev_pm_ops sdhci_pci_pm_ops = { 1820f9900f15SUlf Hansson SET_SYSTEM_SLEEP_PM_OPS(sdhci_pci_suspend, sdhci_pci_resume) 1821659c9bc1SBen Hutchings SET_RUNTIME_PM_OPS(sdhci_pci_runtime_suspend, 1822659c9bc1SBen Hutchings sdhci_pci_runtime_resume, NULL) 1823659c9bc1SBen Hutchings }; 1824659c9bc1SBen Hutchings 1825659c9bc1SBen Hutchings /*****************************************************************************\ 1826659c9bc1SBen Hutchings * * 1827659c9bc1SBen Hutchings * Device probing/removal * 1828659c9bc1SBen Hutchings * * 1829659c9bc1SBen Hutchings \*****************************************************************************/ 1830659c9bc1SBen Hutchings 1831659c9bc1SBen Hutchings static struct sdhci_pci_slot *sdhci_pci_probe_slot( 1832659c9bc1SBen Hutchings struct pci_dev *pdev, struct sdhci_pci_chip *chip, int first_bar, 1833659c9bc1SBen Hutchings int slotno) 1834659c9bc1SBen Hutchings { 1835659c9bc1SBen Hutchings struct sdhci_pci_slot *slot; 1836659c9bc1SBen Hutchings struct sdhci_host *host; 1837659c9bc1SBen Hutchings int ret, bar = first_bar + slotno; 1838ac9f67b5SAdrian Hunter size_t priv_size = chip->fixes ? chip->fixes->priv_size : 0; 1839659c9bc1SBen Hutchings 1840659c9bc1SBen Hutchings if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) { 1841659c9bc1SBen Hutchings dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar); 1842659c9bc1SBen Hutchings return ERR_PTR(-ENODEV); 1843659c9bc1SBen Hutchings } 1844659c9bc1SBen Hutchings 1845659c9bc1SBen Hutchings if (pci_resource_len(pdev, bar) < 0x100) { 1846659c9bc1SBen Hutchings dev_err(&pdev->dev, "Invalid iomem size. You may " 1847659c9bc1SBen Hutchings "experience problems.\n"); 1848659c9bc1SBen Hutchings } 1849659c9bc1SBen Hutchings 1850659c9bc1SBen Hutchings if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) { 1851659c9bc1SBen Hutchings dev_err(&pdev->dev, "Vendor specific interface. Aborting.\n"); 1852659c9bc1SBen Hutchings return ERR_PTR(-ENODEV); 1853659c9bc1SBen Hutchings } 1854659c9bc1SBen Hutchings 1855659c9bc1SBen Hutchings if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) { 1856659c9bc1SBen Hutchings dev_err(&pdev->dev, "Unknown interface. Aborting.\n"); 1857659c9bc1SBen Hutchings return ERR_PTR(-ENODEV); 1858659c9bc1SBen Hutchings } 1859659c9bc1SBen Hutchings 1860ac9f67b5SAdrian Hunter host = sdhci_alloc_host(&pdev->dev, sizeof(*slot) + priv_size); 1861659c9bc1SBen Hutchings if (IS_ERR(host)) { 1862659c9bc1SBen Hutchings dev_err(&pdev->dev, "cannot allocate host\n"); 1863659c9bc1SBen Hutchings return ERR_CAST(host); 1864659c9bc1SBen Hutchings } 1865659c9bc1SBen Hutchings 1866659c9bc1SBen Hutchings slot = sdhci_priv(host); 1867659c9bc1SBen Hutchings 1868659c9bc1SBen Hutchings slot->chip = chip; 1869659c9bc1SBen Hutchings slot->host = host; 1870659c9bc1SBen Hutchings slot->rst_n_gpio = -EINVAL; 1871659c9bc1SBen Hutchings slot->cd_gpio = -EINVAL; 1872659c9bc1SBen Hutchings slot->cd_idx = -1; 1873659c9bc1SBen Hutchings 1874659c9bc1SBen Hutchings /* Retrieve platform data if there is any */ 1875659c9bc1SBen Hutchings if (*sdhci_pci_get_data) 1876659c9bc1SBen Hutchings slot->data = sdhci_pci_get_data(pdev, slotno); 1877659c9bc1SBen Hutchings 1878659c9bc1SBen Hutchings if (slot->data) { 1879659c9bc1SBen Hutchings if (slot->data->setup) { 1880659c9bc1SBen Hutchings ret = slot->data->setup(slot->data); 1881659c9bc1SBen Hutchings if (ret) { 1882659c9bc1SBen Hutchings dev_err(&pdev->dev, "platform setup failed\n"); 1883659c9bc1SBen Hutchings goto free; 1884659c9bc1SBen Hutchings } 1885659c9bc1SBen Hutchings } 1886659c9bc1SBen Hutchings slot->rst_n_gpio = slot->data->rst_n_gpio; 1887659c9bc1SBen Hutchings slot->cd_gpio = slot->data->cd_gpio; 1888659c9bc1SBen Hutchings } 1889659c9bc1SBen Hutchings 1890659c9bc1SBen Hutchings host->hw_name = "PCI"; 18916bc09063SAdrian Hunter host->ops = chip->fixes && chip->fixes->ops ? 18926bc09063SAdrian Hunter chip->fixes->ops : 18936bc09063SAdrian Hunter &sdhci_pci_ops; 1894659c9bc1SBen Hutchings host->quirks = chip->quirks; 1895659c9bc1SBen Hutchings host->quirks2 = chip->quirks2; 1896659c9bc1SBen Hutchings 1897659c9bc1SBen Hutchings host->irq = pdev->irq; 1898659c9bc1SBen Hutchings 1899c10bc372SAndy Shevchenko ret = pcim_iomap_regions(pdev, BIT(bar), mmc_hostname(host->mmc)); 1900659c9bc1SBen Hutchings if (ret) { 1901659c9bc1SBen Hutchings dev_err(&pdev->dev, "cannot request region\n"); 1902659c9bc1SBen Hutchings goto cleanup; 1903659c9bc1SBen Hutchings } 1904659c9bc1SBen Hutchings 1905c10bc372SAndy Shevchenko host->ioaddr = pcim_iomap_table(pdev)[bar]; 1906659c9bc1SBen Hutchings 1907659c9bc1SBen Hutchings if (chip->fixes && chip->fixes->probe_slot) { 1908659c9bc1SBen Hutchings ret = chip->fixes->probe_slot(slot); 1909659c9bc1SBen Hutchings if (ret) 1910c10bc372SAndy Shevchenko goto cleanup; 1911659c9bc1SBen Hutchings } 1912659c9bc1SBen Hutchings 1913659c9bc1SBen Hutchings if (gpio_is_valid(slot->rst_n_gpio)) { 1914c10bc372SAndy Shevchenko if (!devm_gpio_request(&pdev->dev, slot->rst_n_gpio, "eMMC_reset")) { 1915659c9bc1SBen Hutchings gpio_direction_output(slot->rst_n_gpio, 1); 1916659c9bc1SBen Hutchings slot->host->mmc->caps |= MMC_CAP_HW_RESET; 1917659c9bc1SBen Hutchings slot->hw_reset = sdhci_pci_gpio_hw_reset; 1918659c9bc1SBen Hutchings } else { 1919659c9bc1SBen Hutchings dev_warn(&pdev->dev, "failed to request rst_n_gpio\n"); 1920659c9bc1SBen Hutchings slot->rst_n_gpio = -EINVAL; 1921659c9bc1SBen Hutchings } 1922659c9bc1SBen Hutchings } 1923659c9bc1SBen Hutchings 1924e92cc35dSAdrian Hunter host->mmc->pm_caps = MMC_PM_KEEP_POWER; 1925659c9bc1SBen Hutchings host->mmc->slotno = slotno; 1926659c9bc1SBen Hutchings host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP; 1927659c9bc1SBen Hutchings 1928e92cc35dSAdrian Hunter if (device_can_wakeup(&pdev->dev)) 1929e92cc35dSAdrian Hunter host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; 1930e92cc35dSAdrian Hunter 1931d56ee1ffSAdrian Hunter if (host->mmc->caps & MMC_CAP_CD_WAKE) 1932d56ee1ffSAdrian Hunter device_init_wakeup(&pdev->dev, true); 1933d56ee1ffSAdrian Hunter 19348f743d03SDavid E. Box if (slot->cd_idx >= 0) { 1935cdcefe6bSRajat Jain ret = mmc_gpiod_request_cd(host->mmc, "cd", slot->cd_idx, 19368f743d03SDavid E. Box slot->cd_override_level, 0, NULL); 1937cdcefe6bSRajat Jain if (ret && ret != -EPROBE_DEFER) 1938cdcefe6bSRajat Jain ret = mmc_gpiod_request_cd(host->mmc, NULL, 1939cdcefe6bSRajat Jain slot->cd_idx, 1940cdcefe6bSRajat Jain slot->cd_override_level, 1941cdcefe6bSRajat Jain 0, NULL); 19428f743d03SDavid E. Box if (ret == -EPROBE_DEFER) 19438f743d03SDavid E. Box goto remove; 19448f743d03SDavid E. Box 19458f743d03SDavid E. Box if (ret) { 1946659c9bc1SBen Hutchings dev_warn(&pdev->dev, "failed to setup card detect gpio\n"); 1947659c9bc1SBen Hutchings slot->cd_idx = -1; 1948659c9bc1SBen Hutchings } 19498f743d03SDavid E. Box } 1950659c9bc1SBen Hutchings 195161c951deSAdrian Hunter if (chip->fixes && chip->fixes->add_host) 195261c951deSAdrian Hunter ret = chip->fixes->add_host(slot); 195361c951deSAdrian Hunter else 1954659c9bc1SBen Hutchings ret = sdhci_add_host(host); 1955659c9bc1SBen Hutchings if (ret) 1956659c9bc1SBen Hutchings goto remove; 1957659c9bc1SBen Hutchings 1958659c9bc1SBen Hutchings sdhci_pci_add_own_cd(slot); 1959659c9bc1SBen Hutchings 1960659c9bc1SBen Hutchings /* 1961659c9bc1SBen Hutchings * Check if the chip needs a separate GPIO for card detect to wake up 1962659c9bc1SBen Hutchings * from runtime suspend. If it is not there, don't allow runtime PM. 1963659c9bc1SBen Hutchings * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure. 1964659c9bc1SBen Hutchings */ 1965659c9bc1SBen Hutchings if (chip->fixes && chip->fixes->own_cd_for_runtime_pm && 1966659c9bc1SBen Hutchings !gpio_is_valid(slot->cd_gpio) && slot->cd_idx < 0) 1967659c9bc1SBen Hutchings chip->allow_runtime_pm = false; 1968659c9bc1SBen Hutchings 1969659c9bc1SBen Hutchings return slot; 1970659c9bc1SBen Hutchings 1971659c9bc1SBen Hutchings remove: 1972659c9bc1SBen Hutchings if (chip->fixes && chip->fixes->remove_slot) 1973659c9bc1SBen Hutchings chip->fixes->remove_slot(slot, 0); 1974659c9bc1SBen Hutchings 1975659c9bc1SBen Hutchings cleanup: 1976659c9bc1SBen Hutchings if (slot->data && slot->data->cleanup) 1977659c9bc1SBen Hutchings slot->data->cleanup(slot->data); 1978659c9bc1SBen Hutchings 1979659c9bc1SBen Hutchings free: 1980659c9bc1SBen Hutchings sdhci_free_host(host); 1981659c9bc1SBen Hutchings 1982659c9bc1SBen Hutchings return ERR_PTR(ret); 1983659c9bc1SBen Hutchings } 1984659c9bc1SBen Hutchings 1985659c9bc1SBen Hutchings static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot) 1986659c9bc1SBen Hutchings { 1987659c9bc1SBen Hutchings int dead; 1988659c9bc1SBen Hutchings u32 scratch; 1989659c9bc1SBen Hutchings 1990659c9bc1SBen Hutchings sdhci_pci_remove_own_cd(slot); 1991659c9bc1SBen Hutchings 1992659c9bc1SBen Hutchings dead = 0; 1993659c9bc1SBen Hutchings scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS); 1994659c9bc1SBen Hutchings if (scratch == (u32)-1) 1995659c9bc1SBen Hutchings dead = 1; 1996659c9bc1SBen Hutchings 1997659c9bc1SBen Hutchings sdhci_remove_host(slot->host, dead); 1998659c9bc1SBen Hutchings 1999659c9bc1SBen Hutchings if (slot->chip->fixes && slot->chip->fixes->remove_slot) 2000659c9bc1SBen Hutchings slot->chip->fixes->remove_slot(slot, dead); 2001659c9bc1SBen Hutchings 2002659c9bc1SBen Hutchings if (slot->data && slot->data->cleanup) 2003659c9bc1SBen Hutchings slot->data->cleanup(slot->data); 2004659c9bc1SBen Hutchings 2005659c9bc1SBen Hutchings sdhci_free_host(slot->host); 2006659c9bc1SBen Hutchings } 2007659c9bc1SBen Hutchings 2008659c9bc1SBen Hutchings static void sdhci_pci_runtime_pm_allow(struct device *dev) 2009659c9bc1SBen Hutchings { 201000884b61SAdrian Hunter pm_suspend_ignore_children(dev, 1); 2011659c9bc1SBen Hutchings pm_runtime_set_autosuspend_delay(dev, 50); 2012659c9bc1SBen Hutchings pm_runtime_use_autosuspend(dev); 201300884b61SAdrian Hunter pm_runtime_allow(dev); 201400884b61SAdrian Hunter /* Stay active until mmc core scans for a card */ 201500884b61SAdrian Hunter pm_runtime_put_noidle(dev); 2016659c9bc1SBen Hutchings } 2017659c9bc1SBen Hutchings 2018659c9bc1SBen Hutchings static void sdhci_pci_runtime_pm_forbid(struct device *dev) 2019659c9bc1SBen Hutchings { 2020659c9bc1SBen Hutchings pm_runtime_forbid(dev); 2021659c9bc1SBen Hutchings pm_runtime_get_noresume(dev); 2022659c9bc1SBen Hutchings } 2023659c9bc1SBen Hutchings 2024659c9bc1SBen Hutchings static int sdhci_pci_probe(struct pci_dev *pdev, 2025659c9bc1SBen Hutchings const struct pci_device_id *ent) 2026659c9bc1SBen Hutchings { 2027659c9bc1SBen Hutchings struct sdhci_pci_chip *chip; 2028659c9bc1SBen Hutchings struct sdhci_pci_slot *slot; 2029659c9bc1SBen Hutchings 2030659c9bc1SBen Hutchings u8 slots, first_bar; 2031659c9bc1SBen Hutchings int ret, i; 2032659c9bc1SBen Hutchings 2033659c9bc1SBen Hutchings BUG_ON(pdev == NULL); 2034659c9bc1SBen Hutchings BUG_ON(ent == NULL); 2035659c9bc1SBen Hutchings 2036659c9bc1SBen Hutchings dev_info(&pdev->dev, "SDHCI controller found [%04x:%04x] (rev %x)\n", 2037659c9bc1SBen Hutchings (int)pdev->vendor, (int)pdev->device, (int)pdev->revision); 2038659c9bc1SBen Hutchings 2039659c9bc1SBen Hutchings ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots); 2040659c9bc1SBen Hutchings if (ret) 2041659c9bc1SBen Hutchings return ret; 2042659c9bc1SBen Hutchings 2043659c9bc1SBen Hutchings slots = PCI_SLOT_INFO_SLOTS(slots) + 1; 2044659c9bc1SBen Hutchings dev_dbg(&pdev->dev, "found %d slot(s)\n", slots); 2045659c9bc1SBen Hutchings 2046659c9bc1SBen Hutchings BUG_ON(slots > MAX_SLOTS); 2047659c9bc1SBen Hutchings 2048659c9bc1SBen Hutchings ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar); 2049659c9bc1SBen Hutchings if (ret) 2050659c9bc1SBen Hutchings return ret; 2051659c9bc1SBen Hutchings 2052659c9bc1SBen Hutchings first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK; 2053659c9bc1SBen Hutchings 2054659c9bc1SBen Hutchings if (first_bar > 5) { 2055659c9bc1SBen Hutchings dev_err(&pdev->dev, "Invalid first BAR. Aborting.\n"); 2056659c9bc1SBen Hutchings return -ENODEV; 2057659c9bc1SBen Hutchings } 2058659c9bc1SBen Hutchings 205952ac7acfSAndy Shevchenko ret = pcim_enable_device(pdev); 2060659c9bc1SBen Hutchings if (ret) 2061659c9bc1SBen Hutchings return ret; 2062659c9bc1SBen Hutchings 206352ac7acfSAndy Shevchenko chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); 206452ac7acfSAndy Shevchenko if (!chip) 206552ac7acfSAndy Shevchenko return -ENOMEM; 2066659c9bc1SBen Hutchings 2067659c9bc1SBen Hutchings chip->pdev = pdev; 2068659c9bc1SBen Hutchings chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data; 2069659c9bc1SBen Hutchings if (chip->fixes) { 2070659c9bc1SBen Hutchings chip->quirks = chip->fixes->quirks; 2071659c9bc1SBen Hutchings chip->quirks2 = chip->fixes->quirks2; 2072659c9bc1SBen Hutchings chip->allow_runtime_pm = chip->fixes->allow_runtime_pm; 2073659c9bc1SBen Hutchings } 2074659c9bc1SBen Hutchings chip->num_slots = slots; 2075d38dcad4SAdrian Hunter chip->pm_retune = true; 2076d38dcad4SAdrian Hunter chip->rpm_retune = true; 2077659c9bc1SBen Hutchings 2078659c9bc1SBen Hutchings pci_set_drvdata(pdev, chip); 2079659c9bc1SBen Hutchings 2080659c9bc1SBen Hutchings if (chip->fixes && chip->fixes->probe) { 2081659c9bc1SBen Hutchings ret = chip->fixes->probe(chip); 2082659c9bc1SBen Hutchings if (ret) 208352ac7acfSAndy Shevchenko return ret; 2084659c9bc1SBen Hutchings } 2085659c9bc1SBen Hutchings 2086659c9bc1SBen Hutchings slots = chip->num_slots; /* Quirk may have changed this */ 2087659c9bc1SBen Hutchings 2088659c9bc1SBen Hutchings for (i = 0; i < slots; i++) { 2089659c9bc1SBen Hutchings slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i); 2090659c9bc1SBen Hutchings if (IS_ERR(slot)) { 2091659c9bc1SBen Hutchings for (i--; i >= 0; i--) 2092659c9bc1SBen Hutchings sdhci_pci_remove_slot(chip->slots[i]); 209352ac7acfSAndy Shevchenko return PTR_ERR(slot); 2094659c9bc1SBen Hutchings } 2095659c9bc1SBen Hutchings 2096659c9bc1SBen Hutchings chip->slots[i] = slot; 2097659c9bc1SBen Hutchings } 2098659c9bc1SBen Hutchings 2099659c9bc1SBen Hutchings if (chip->allow_runtime_pm) 2100659c9bc1SBen Hutchings sdhci_pci_runtime_pm_allow(&pdev->dev); 2101659c9bc1SBen Hutchings 2102659c9bc1SBen Hutchings return 0; 2103659c9bc1SBen Hutchings } 2104659c9bc1SBen Hutchings 2105659c9bc1SBen Hutchings static void sdhci_pci_remove(struct pci_dev *pdev) 2106659c9bc1SBen Hutchings { 2107659c9bc1SBen Hutchings int i; 210852ac7acfSAndy Shevchenko struct sdhci_pci_chip *chip = pci_get_drvdata(pdev); 2109659c9bc1SBen Hutchings 2110659c9bc1SBen Hutchings if (chip->allow_runtime_pm) 2111659c9bc1SBen Hutchings sdhci_pci_runtime_pm_forbid(&pdev->dev); 2112659c9bc1SBen Hutchings 2113659c9bc1SBen Hutchings for (i = 0; i < chip->num_slots; i++) 2114659c9bc1SBen Hutchings sdhci_pci_remove_slot(chip->slots[i]); 2115659c9bc1SBen Hutchings } 2116659c9bc1SBen Hutchings 2117659c9bc1SBen Hutchings static struct pci_driver sdhci_driver = { 2118659c9bc1SBen Hutchings .name = "sdhci-pci", 2119659c9bc1SBen Hutchings .id_table = pci_ids, 2120659c9bc1SBen Hutchings .probe = sdhci_pci_probe, 2121659c9bc1SBen Hutchings .remove = sdhci_pci_remove, 2122659c9bc1SBen Hutchings .driver = { 2123659c9bc1SBen Hutchings .pm = &sdhci_pci_pm_ops 2124659c9bc1SBen Hutchings }, 2125659c9bc1SBen Hutchings }; 2126659c9bc1SBen Hutchings 2127659c9bc1SBen Hutchings module_pci_driver(sdhci_driver); 2128659c9bc1SBen Hutchings 2129659c9bc1SBen Hutchings MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>"); 2130659c9bc1SBen Hutchings MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver"); 2131659c9bc1SBen Hutchings MODULE_LICENSE("GPL"); 2132