1761 строка
45 KiB
C
1761 строка
45 KiB
C
/* linux/drivers/mmc/host/sdhci-pci.c - SDHCI on PCI bus interface
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*
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* Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* Thanks to the following companies for their support:
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*
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* - JMicron (hardware and technical support)
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*/
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#include <linux/string.h>
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#include <linux/delay.h>
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#include <linux/highmem.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/device.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/mmc.h>
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#include <linux/scatterlist.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/pm_runtime.h>
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#include <linux/mmc/slot-gpio.h>
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#include <linux/mmc/sdhci-pci-data.h>
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#include <linux/acpi.h>
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#include "sdhci.h"
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#include "sdhci-pci.h"
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#include "sdhci-pci-o2micro.h"
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static int sdhci_pci_enable_dma(struct sdhci_host *host);
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static void sdhci_pci_set_bus_width(struct sdhci_host *host, int width);
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static void sdhci_pci_hw_reset(struct sdhci_host *host);
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#ifdef CONFIG_PM_SLEEP
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static int __sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
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{
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int i, ret;
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for (i = 0; i < chip->num_slots; i++) {
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struct sdhci_pci_slot *slot = chip->slots[i];
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struct sdhci_host *host;
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if (!slot)
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continue;
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host = slot->host;
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if (chip->pm_retune && host->tuning_mode != SDHCI_TUNING_MODE_3)
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mmc_retune_needed(host->mmc);
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ret = sdhci_suspend_host(host);
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if (ret)
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goto err_pci_suspend;
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if (host->mmc->pm_flags & MMC_PM_WAKE_SDIO_IRQ)
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sdhci_enable_irq_wakeups(host);
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}
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return 0;
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err_pci_suspend:
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while (--i >= 0)
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sdhci_resume_host(chip->slots[i]->host);
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return ret;
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}
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static int sdhci_pci_init_wakeup(struct sdhci_pci_chip *chip)
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{
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mmc_pm_flag_t pm_flags = 0;
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int i;
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for (i = 0; i < chip->num_slots; i++) {
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struct sdhci_pci_slot *slot = chip->slots[i];
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if (slot)
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pm_flags |= slot->host->mmc->pm_flags;
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}
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return device_init_wakeup(&chip->pdev->dev,
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(pm_flags & MMC_PM_KEEP_POWER) &&
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(pm_flags & MMC_PM_WAKE_SDIO_IRQ));
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}
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static int sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
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{
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int ret;
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ret = __sdhci_pci_suspend_host(chip);
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if (ret)
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return ret;
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sdhci_pci_init_wakeup(chip);
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return 0;
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}
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int sdhci_pci_resume_host(struct sdhci_pci_chip *chip)
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{
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struct sdhci_pci_slot *slot;
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int i, ret;
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for (i = 0; i < chip->num_slots; i++) {
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slot = chip->slots[i];
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if (!slot)
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continue;
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ret = sdhci_resume_host(slot->host);
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if (ret)
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return ret;
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}
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return 0;
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}
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#endif
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#ifdef CONFIG_PM
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static int sdhci_pci_runtime_suspend_host(struct sdhci_pci_chip *chip)
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{
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struct sdhci_pci_slot *slot;
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struct sdhci_host *host;
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int i, ret;
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for (i = 0; i < chip->num_slots; i++) {
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slot = chip->slots[i];
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if (!slot)
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continue;
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host = slot->host;
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ret = sdhci_runtime_suspend_host(host);
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if (ret)
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goto err_pci_runtime_suspend;
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if (chip->rpm_retune &&
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host->tuning_mode != SDHCI_TUNING_MODE_3)
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mmc_retune_needed(host->mmc);
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}
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return 0;
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err_pci_runtime_suspend:
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while (--i >= 0)
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sdhci_runtime_resume_host(chip->slots[i]->host);
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return ret;
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}
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static int sdhci_pci_runtime_resume_host(struct sdhci_pci_chip *chip)
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{
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struct sdhci_pci_slot *slot;
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int i, ret;
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for (i = 0; i < chip->num_slots; i++) {
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slot = chip->slots[i];
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if (!slot)
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continue;
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ret = sdhci_runtime_resume_host(slot->host);
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if (ret)
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return ret;
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}
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return 0;
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}
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#endif
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/*****************************************************************************\
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* *
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* Hardware specific quirk handling *
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* *
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\*****************************************************************************/
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static int ricoh_probe(struct sdhci_pci_chip *chip)
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{
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if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG ||
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chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY)
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chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET;
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return 0;
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}
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static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot)
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{
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slot->host->caps =
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((0x21 << SDHCI_TIMEOUT_CLK_SHIFT)
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& SDHCI_TIMEOUT_CLK_MASK) |
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((0x21 << SDHCI_CLOCK_BASE_SHIFT)
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& SDHCI_CLOCK_BASE_MASK) |
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SDHCI_TIMEOUT_CLK_UNIT |
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SDHCI_CAN_VDD_330 |
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SDHCI_CAN_DO_HISPD |
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SDHCI_CAN_DO_SDMA;
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return 0;
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}
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#ifdef CONFIG_PM_SLEEP
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static int ricoh_mmc_resume(struct sdhci_pci_chip *chip)
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{
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/* Apply a delay to allow controller to settle */
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/* Otherwise it becomes confused if card state changed
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during suspend */
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msleep(500);
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return sdhci_pci_resume_host(chip);
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}
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#endif
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static const struct sdhci_pci_fixes sdhci_ricoh = {
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.probe = ricoh_probe,
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.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
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SDHCI_QUIRK_FORCE_DMA |
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SDHCI_QUIRK_CLOCK_BEFORE_RESET,
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};
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static const struct sdhci_pci_fixes sdhci_ricoh_mmc = {
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.probe_slot = ricoh_mmc_probe_slot,
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#ifdef CONFIG_PM_SLEEP
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.resume = ricoh_mmc_resume,
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#endif
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.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
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SDHCI_QUIRK_CLOCK_BEFORE_RESET |
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SDHCI_QUIRK_NO_CARD_NO_RESET |
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SDHCI_QUIRK_MISSING_CAPS
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};
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static const struct sdhci_pci_fixes sdhci_ene_712 = {
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.quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
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SDHCI_QUIRK_BROKEN_DMA,
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};
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static const struct sdhci_pci_fixes sdhci_ene_714 = {
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.quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
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SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |
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SDHCI_QUIRK_BROKEN_DMA,
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};
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static const struct sdhci_pci_fixes sdhci_cafe = {
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.quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
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SDHCI_QUIRK_NO_BUSY_IRQ |
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SDHCI_QUIRK_BROKEN_CARD_DETECTION |
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SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
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};
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static const struct sdhci_pci_fixes sdhci_intel_qrk = {
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.quirks = SDHCI_QUIRK_NO_HISPD_BIT,
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};
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static int mrst_hc_probe_slot(struct sdhci_pci_slot *slot)
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{
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slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
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return 0;
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}
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/*
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* ADMA operation is disabled for Moorestown platform due to
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* hardware bugs.
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*/
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static int mrst_hc_probe(struct sdhci_pci_chip *chip)
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{
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/*
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* slots number is fixed here for MRST as SDIO3/5 are never used and
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* have hardware bugs.
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*/
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chip->num_slots = 1;
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return 0;
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}
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static int pch_hc_probe_slot(struct sdhci_pci_slot *slot)
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{
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slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
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return 0;
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}
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#ifdef CONFIG_PM
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static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id)
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{
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struct sdhci_pci_slot *slot = dev_id;
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struct sdhci_host *host = slot->host;
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mmc_detect_change(host->mmc, msecs_to_jiffies(200));
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return IRQ_HANDLED;
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}
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static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
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{
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int err, irq, gpio = slot->cd_gpio;
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slot->cd_gpio = -EINVAL;
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slot->cd_irq = -EINVAL;
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if (!gpio_is_valid(gpio))
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return;
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err = devm_gpio_request(&slot->chip->pdev->dev, gpio, "sd_cd");
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if (err < 0)
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goto out;
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err = gpio_direction_input(gpio);
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if (err < 0)
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goto out_free;
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irq = gpio_to_irq(gpio);
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if (irq < 0)
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goto out_free;
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err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING |
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IRQF_TRIGGER_FALLING, "sd_cd", slot);
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if (err)
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goto out_free;
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slot->cd_gpio = gpio;
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slot->cd_irq = irq;
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return;
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out_free:
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devm_gpio_free(&slot->chip->pdev->dev, gpio);
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out:
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dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
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}
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static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
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{
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if (slot->cd_irq >= 0)
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free_irq(slot->cd_irq, slot);
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}
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#else
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static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
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{
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}
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static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
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{
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}
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#endif
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static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
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{
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slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
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slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC;
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return 0;
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}
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static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
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{
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slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE;
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return 0;
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}
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static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = {
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.quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
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.probe_slot = mrst_hc_probe_slot,
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};
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static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
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.quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
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.probe = mrst_hc_probe,
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};
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static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
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.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
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.allow_runtime_pm = true,
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.own_cd_for_runtime_pm = true,
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};
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static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
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.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
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.quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
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.allow_runtime_pm = true,
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.probe_slot = mfd_sdio_probe_slot,
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};
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static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = {
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.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
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.allow_runtime_pm = true,
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.probe_slot = mfd_emmc_probe_slot,
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};
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static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
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.quirks = SDHCI_QUIRK_BROKEN_ADMA,
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.probe_slot = pch_hc_probe_slot,
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};
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enum {
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INTEL_DSM_FNS = 0,
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INTEL_DSM_DRV_STRENGTH = 9,
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INTEL_DSM_D3_RETUNE = 10,
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};
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struct intel_host {
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u32 dsm_fns;
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int drv_strength;
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bool d3_retune;
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};
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static const guid_t intel_dsm_guid =
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GUID_INIT(0xF6C13EA5, 0x65CD, 0x461F,
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0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61);
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static int __intel_dsm(struct intel_host *intel_host, struct device *dev,
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unsigned int fn, u32 *result)
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{
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union acpi_object *obj;
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int err = 0;
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size_t len;
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obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_guid, 0, fn, NULL);
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if (!obj)
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return -EOPNOTSUPP;
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if (obj->type != ACPI_TYPE_BUFFER || obj->buffer.length < 1) {
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err = -EINVAL;
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goto out;
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}
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len = min_t(size_t, obj->buffer.length, 4);
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*result = 0;
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memcpy(result, obj->buffer.pointer, len);
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out:
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ACPI_FREE(obj);
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return err;
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}
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static int intel_dsm(struct intel_host *intel_host, struct device *dev,
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unsigned int fn, u32 *result)
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{
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if (fn > 31 || !(intel_host->dsm_fns & (1 << fn)))
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return -EOPNOTSUPP;
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return __intel_dsm(intel_host, dev, fn, result);
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}
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static void intel_dsm_init(struct intel_host *intel_host, struct device *dev,
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struct mmc_host *mmc)
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{
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int err;
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u32 val;
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err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns);
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if (err) {
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pr_debug("%s: DSM not supported, error %d\n",
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mmc_hostname(mmc), err);
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return;
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}
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pr_debug("%s: DSM function mask %#x\n",
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mmc_hostname(mmc), intel_host->dsm_fns);
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err = intel_dsm(intel_host, dev, INTEL_DSM_DRV_STRENGTH, &val);
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intel_host->drv_strength = err ? 0 : val;
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err = intel_dsm(intel_host, dev, INTEL_DSM_D3_RETUNE, &val);
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intel_host->d3_retune = err ? true : !!val;
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}
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static void sdhci_pci_int_hw_reset(struct sdhci_host *host)
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{
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u8 reg;
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reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
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reg |= 0x10;
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sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
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/* For eMMC, minimum is 1us but give it 9us for good measure */
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udelay(9);
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reg &= ~0x10;
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sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
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/* For eMMC, minimum is 200us but give it 300us for good measure */
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usleep_range(300, 1000);
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}
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static int intel_select_drive_strength(struct mmc_card *card,
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unsigned int max_dtr, int host_drv,
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int card_drv, int *drv_type)
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{
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struct sdhci_host *host = mmc_priv(card->host);
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struct sdhci_pci_slot *slot = sdhci_priv(host);
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struct intel_host *intel_host = sdhci_pci_priv(slot);
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return intel_host->drv_strength;
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}
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static int bxt_get_cd(struct mmc_host *mmc)
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{
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int gpio_cd = mmc_gpio_get_cd(mmc);
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struct sdhci_host *host = mmc_priv(mmc);
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unsigned long flags;
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int ret = 0;
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if (!gpio_cd)
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return 0;
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spin_lock_irqsave(&host->lock, flags);
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if (host->flags & SDHCI_DEVICE_DEAD)
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goto out;
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|
|
ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
|
|
out:
|
|
spin_unlock_irqrestore(&host->lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define SDHCI_INTEL_PWR_TIMEOUT_CNT 20
|
|
#define SDHCI_INTEL_PWR_TIMEOUT_UDELAY 100
|
|
|
|
static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode,
|
|
unsigned short vdd)
|
|
{
|
|
int cntr;
|
|
u8 reg;
|
|
|
|
sdhci_set_power(host, mode, vdd);
|
|
|
|
if (mode == MMC_POWER_OFF)
|
|
return;
|
|
|
|
/*
|
|
* Bus power might not enable after D3 -> D0 transition due to the
|
|
* present state not yet having propagated. Retry for up to 2ms.
|
|
*/
|
|
for (cntr = 0; cntr < SDHCI_INTEL_PWR_TIMEOUT_CNT; cntr++) {
|
|
reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
|
|
if (reg & SDHCI_POWER_ON)
|
|
break;
|
|
udelay(SDHCI_INTEL_PWR_TIMEOUT_UDELAY);
|
|
reg |= SDHCI_POWER_ON;
|
|
sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
|
|
}
|
|
}
|
|
|
|
#define INTEL_HS400_ES_REG 0x78
|
|
#define INTEL_HS400_ES_BIT BIT(0)
|
|
|
|
static void intel_hs400_enhanced_strobe(struct mmc_host *mmc,
|
|
struct mmc_ios *ios)
|
|
{
|
|
struct sdhci_host *host = mmc_priv(mmc);
|
|
u32 val;
|
|
|
|
val = sdhci_readl(host, INTEL_HS400_ES_REG);
|
|
if (ios->enhanced_strobe)
|
|
val |= INTEL_HS400_ES_BIT;
|
|
else
|
|
val &= ~INTEL_HS400_ES_BIT;
|
|
sdhci_writel(host, val, INTEL_HS400_ES_REG);
|
|
}
|
|
|
|
static const struct sdhci_ops sdhci_intel_byt_ops = {
|
|
.set_clock = sdhci_set_clock,
|
|
.set_power = sdhci_intel_set_power,
|
|
.enable_dma = sdhci_pci_enable_dma,
|
|
.set_bus_width = sdhci_pci_set_bus_width,
|
|
.reset = sdhci_reset,
|
|
.set_uhs_signaling = sdhci_set_uhs_signaling,
|
|
.hw_reset = sdhci_pci_hw_reset,
|
|
};
|
|
|
|
static void byt_read_dsm(struct sdhci_pci_slot *slot)
|
|
{
|
|
struct intel_host *intel_host = sdhci_pci_priv(slot);
|
|
struct device *dev = &slot->chip->pdev->dev;
|
|
struct mmc_host *mmc = slot->host->mmc;
|
|
|
|
intel_dsm_init(intel_host, dev, mmc);
|
|
slot->chip->rpm_retune = intel_host->d3_retune;
|
|
}
|
|
|
|
static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
byt_read_dsm(slot);
|
|
slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
|
|
MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
|
|
MMC_CAP_CMD_DURING_TFR |
|
|
MMC_CAP_WAIT_WHILE_BUSY;
|
|
slot->hw_reset = sdhci_pci_int_hw_reset;
|
|
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
|
|
slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
|
|
slot->host->mmc_host_ops.select_drive_strength =
|
|
intel_select_drive_strength;
|
|
return 0;
|
|
}
|
|
|
|
static int glk_emmc_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
int ret = byt_emmc_probe_slot(slot);
|
|
|
|
if (slot->chip->pdev->device != PCI_DEVICE_ID_INTEL_GLK_EMMC) {
|
|
slot->host->mmc->caps2 |= MMC_CAP2_HS400_ES,
|
|
slot->host->mmc_host_ops.hs400_enhanced_strobe =
|
|
intel_hs400_enhanced_strobe;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_ACPI
|
|
static int ni_set_max_freq(struct sdhci_pci_slot *slot)
|
|
{
|
|
acpi_status status;
|
|
unsigned long long max_freq;
|
|
|
|
status = acpi_evaluate_integer(ACPI_HANDLE(&slot->chip->pdev->dev),
|
|
"MXFQ", NULL, &max_freq);
|
|
if (ACPI_FAILURE(status)) {
|
|
dev_err(&slot->chip->pdev->dev,
|
|
"MXFQ not found in acpi table\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
slot->host->mmc->f_max = max_freq * 1000000;
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static inline int ni_set_max_freq(struct sdhci_pci_slot *slot)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int ni_byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
int err;
|
|
|
|
byt_read_dsm(slot);
|
|
|
|
err = ni_set_max_freq(slot);
|
|
if (err)
|
|
return err;
|
|
|
|
slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
|
|
MMC_CAP_WAIT_WHILE_BUSY;
|
|
return 0;
|
|
}
|
|
|
|
static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
byt_read_dsm(slot);
|
|
slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
|
|
MMC_CAP_WAIT_WHILE_BUSY;
|
|
return 0;
|
|
}
|
|
|
|
static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
byt_read_dsm(slot);
|
|
slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY |
|
|
MMC_CAP_AGGRESSIVE_PM | MMC_CAP_CD_WAKE;
|
|
slot->cd_idx = 0;
|
|
slot->cd_override_level = true;
|
|
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
|
|
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD ||
|
|
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD ||
|
|
slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_GLK_SD)
|
|
slot->host->mmc_host_ops.get_cd = bxt_get_cd;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
|
|
.allow_runtime_pm = true,
|
|
.probe_slot = byt_emmc_probe_slot,
|
|
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
|
|
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
|
|
SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
|
|
SDHCI_QUIRK2_STOP_WITH_TC,
|
|
.ops = &sdhci_intel_byt_ops,
|
|
.priv_size = sizeof(struct intel_host),
|
|
};
|
|
|
|
static const struct sdhci_pci_fixes sdhci_intel_glk_emmc = {
|
|
.allow_runtime_pm = true,
|
|
.probe_slot = glk_emmc_probe_slot,
|
|
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
|
|
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
|
|
SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
|
|
SDHCI_QUIRK2_STOP_WITH_TC,
|
|
.ops = &sdhci_intel_byt_ops,
|
|
.priv_size = sizeof(struct intel_host),
|
|
};
|
|
|
|
static const struct sdhci_pci_fixes sdhci_ni_byt_sdio = {
|
|
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
|
|
.quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
|
|
SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
|
|
.allow_runtime_pm = true,
|
|
.probe_slot = ni_byt_sdio_probe_slot,
|
|
.ops = &sdhci_intel_byt_ops,
|
|
.priv_size = sizeof(struct intel_host),
|
|
};
|
|
|
|
static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
|
|
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
|
|
.quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
|
|
SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
|
|
.allow_runtime_pm = true,
|
|
.probe_slot = byt_sdio_probe_slot,
|
|
.ops = &sdhci_intel_byt_ops,
|
|
.priv_size = sizeof(struct intel_host),
|
|
};
|
|
|
|
static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
|
|
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
|
|
.quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
|
|
SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
|
|
SDHCI_QUIRK2_STOP_WITH_TC,
|
|
.allow_runtime_pm = true,
|
|
.own_cd_for_runtime_pm = true,
|
|
.probe_slot = byt_sd_probe_slot,
|
|
.ops = &sdhci_intel_byt_ops,
|
|
.priv_size = sizeof(struct intel_host),
|
|
};
|
|
|
|
/* Define Host controllers for Intel Merrifield platform */
|
|
#define INTEL_MRFLD_EMMC_0 0
|
|
#define INTEL_MRFLD_EMMC_1 1
|
|
#define INTEL_MRFLD_SD 2
|
|
#define INTEL_MRFLD_SDIO 3
|
|
|
|
#ifdef CONFIG_ACPI
|
|
static void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
struct acpi_device *device, *child;
|
|
|
|
device = ACPI_COMPANION(&slot->chip->pdev->dev);
|
|
if (!device)
|
|
return;
|
|
|
|
acpi_device_fix_up_power(device);
|
|
list_for_each_entry(child, &device->children, node)
|
|
if (child->status.present && child->status.enabled)
|
|
acpi_device_fix_up_power(child);
|
|
}
|
|
#else
|
|
static inline void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot) {}
|
|
#endif
|
|
|
|
static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
unsigned int func = PCI_FUNC(slot->chip->pdev->devfn);
|
|
|
|
switch (func) {
|
|
case INTEL_MRFLD_EMMC_0:
|
|
case INTEL_MRFLD_EMMC_1:
|
|
slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE |
|
|
MMC_CAP_8_BIT_DATA |
|
|
MMC_CAP_1_8V_DDR;
|
|
break;
|
|
case INTEL_MRFLD_SD:
|
|
slot->host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
|
|
break;
|
|
case INTEL_MRFLD_SDIO:
|
|
slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE |
|
|
MMC_CAP_POWER_OFF_CARD;
|
|
break;
|
|
default:
|
|
return -ENODEV;
|
|
}
|
|
|
|
intel_mrfld_mmc_fix_up_power_slot(slot);
|
|
return 0;
|
|
}
|
|
|
|
static const struct sdhci_pci_fixes sdhci_intel_mrfld_mmc = {
|
|
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
|
|
.quirks2 = SDHCI_QUIRK2_BROKEN_HS200 |
|
|
SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
|
|
.allow_runtime_pm = true,
|
|
.probe_slot = intel_mrfld_mmc_probe_slot,
|
|
};
|
|
|
|
/* O2Micro extra registers */
|
|
#define O2_SD_LOCK_WP 0xD3
|
|
#define O2_SD_MULTI_VCC3V 0xEE
|
|
#define O2_SD_CLKREQ 0xEC
|
|
#define O2_SD_CAPS 0xE0
|
|
#define O2_SD_ADMA1 0xE2
|
|
#define O2_SD_ADMA2 0xE7
|
|
#define O2_SD_INF_MOD 0xF1
|
|
|
|
static int jmicron_pmos(struct sdhci_pci_chip *chip, int on)
|
|
{
|
|
u8 scratch;
|
|
int ret;
|
|
|
|
ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/*
|
|
* Turn PMOS on [bit 0], set over current detection to 2.4 V
|
|
* [bit 1:2] and enable over current debouncing [bit 6].
|
|
*/
|
|
if (on)
|
|
scratch |= 0x47;
|
|
else
|
|
scratch &= ~0x47;
|
|
|
|
return pci_write_config_byte(chip->pdev, 0xAE, scratch);
|
|
}
|
|
|
|
static int jmicron_probe(struct sdhci_pci_chip *chip)
|
|
{
|
|
int ret;
|
|
u16 mmcdev = 0;
|
|
|
|
if (chip->pdev->revision == 0) {
|
|
chip->quirks |= SDHCI_QUIRK_32BIT_DMA_ADDR |
|
|
SDHCI_QUIRK_32BIT_DMA_SIZE |
|
|
SDHCI_QUIRK_32BIT_ADMA_SIZE |
|
|
SDHCI_QUIRK_RESET_AFTER_REQUEST |
|
|
SDHCI_QUIRK_BROKEN_SMALL_PIO;
|
|
}
|
|
|
|
/*
|
|
* JMicron chips can have two interfaces to the same hardware
|
|
* in order to work around limitations in Microsoft's driver.
|
|
* We need to make sure we only bind to one of them.
|
|
*
|
|
* This code assumes two things:
|
|
*
|
|
* 1. The PCI code adds subfunctions in order.
|
|
*
|
|
* 2. The MMC interface has a lower subfunction number
|
|
* than the SD interface.
|
|
*/
|
|
if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_SD)
|
|
mmcdev = PCI_DEVICE_ID_JMICRON_JMB38X_MMC;
|
|
else if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD)
|
|
mmcdev = PCI_DEVICE_ID_JMICRON_JMB388_ESD;
|
|
|
|
if (mmcdev) {
|
|
struct pci_dev *sd_dev;
|
|
|
|
sd_dev = NULL;
|
|
while ((sd_dev = pci_get_device(PCI_VENDOR_ID_JMICRON,
|
|
mmcdev, sd_dev)) != NULL) {
|
|
if ((PCI_SLOT(chip->pdev->devfn) ==
|
|
PCI_SLOT(sd_dev->devfn)) &&
|
|
(chip->pdev->bus == sd_dev->bus))
|
|
break;
|
|
}
|
|
|
|
if (sd_dev) {
|
|
pci_dev_put(sd_dev);
|
|
dev_info(&chip->pdev->dev, "Refusing to bind to "
|
|
"secondary interface.\n");
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* JMicron chips need a bit of a nudge to enable the power
|
|
* output pins.
|
|
*/
|
|
ret = jmicron_pmos(chip, 1);
|
|
if (ret) {
|
|
dev_err(&chip->pdev->dev, "Failure enabling card power\n");
|
|
return ret;
|
|
}
|
|
|
|
/* quirk for unsable RO-detection on JM388 chips */
|
|
if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD ||
|
|
chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
|
|
chip->quirks |= SDHCI_QUIRK_UNSTABLE_RO_DETECT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void jmicron_enable_mmc(struct sdhci_host *host, int on)
|
|
{
|
|
u8 scratch;
|
|
|
|
scratch = readb(host->ioaddr + 0xC0);
|
|
|
|
if (on)
|
|
scratch |= 0x01;
|
|
else
|
|
scratch &= ~0x01;
|
|
|
|
writeb(scratch, host->ioaddr + 0xC0);
|
|
}
|
|
|
|
static int jmicron_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
if (slot->chip->pdev->revision == 0) {
|
|
u16 version;
|
|
|
|
version = readl(slot->host->ioaddr + SDHCI_HOST_VERSION);
|
|
version = (version & SDHCI_VENDOR_VER_MASK) >>
|
|
SDHCI_VENDOR_VER_SHIFT;
|
|
|
|
/*
|
|
* Older versions of the chip have lots of nasty glitches
|
|
* in the ADMA engine. It's best just to avoid it
|
|
* completely.
|
|
*/
|
|
if (version < 0xAC)
|
|
slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
|
|
}
|
|
|
|
/* JM388 MMC doesn't support 1.8V while SD supports it */
|
|
if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
|
|
slot->host->ocr_avail_sd = MMC_VDD_32_33 | MMC_VDD_33_34 |
|
|
MMC_VDD_29_30 | MMC_VDD_30_31 |
|
|
MMC_VDD_165_195; /* allow 1.8V */
|
|
slot->host->ocr_avail_mmc = MMC_VDD_32_33 | MMC_VDD_33_34 |
|
|
MMC_VDD_29_30 | MMC_VDD_30_31; /* no 1.8V for MMC */
|
|
}
|
|
|
|
/*
|
|
* The secondary interface requires a bit set to get the
|
|
* interrupts.
|
|
*/
|
|
if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
|
|
slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
|
|
jmicron_enable_mmc(slot->host, 1);
|
|
|
|
slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead)
|
|
{
|
|
if (dead)
|
|
return;
|
|
|
|
if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
|
|
slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
|
|
jmicron_enable_mmc(slot->host, 0);
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int jmicron_suspend(struct sdhci_pci_chip *chip)
|
|
{
|
|
int i, ret;
|
|
|
|
ret = __sdhci_pci_suspend_host(chip);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
|
|
chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
|
|
for (i = 0; i < chip->num_slots; i++)
|
|
jmicron_enable_mmc(chip->slots[i]->host, 0);
|
|
}
|
|
|
|
sdhci_pci_init_wakeup(chip);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jmicron_resume(struct sdhci_pci_chip *chip)
|
|
{
|
|
int ret, i;
|
|
|
|
if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
|
|
chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
|
|
for (i = 0; i < chip->num_slots; i++)
|
|
jmicron_enable_mmc(chip->slots[i]->host, 1);
|
|
}
|
|
|
|
ret = jmicron_pmos(chip, 1);
|
|
if (ret) {
|
|
dev_err(&chip->pdev->dev, "Failure enabling card power\n");
|
|
return ret;
|
|
}
|
|
|
|
return sdhci_pci_resume_host(chip);
|
|
}
|
|
#endif
|
|
|
|
static const struct sdhci_pci_fixes sdhci_o2 = {
|
|
.probe = sdhci_pci_o2_probe,
|
|
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
|
|
.quirks2 = SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD,
|
|
.probe_slot = sdhci_pci_o2_probe_slot,
|
|
#ifdef CONFIG_PM_SLEEP
|
|
.resume = sdhci_pci_o2_resume,
|
|
#endif
|
|
};
|
|
|
|
static const struct sdhci_pci_fixes sdhci_jmicron = {
|
|
.probe = jmicron_probe,
|
|
|
|
.probe_slot = jmicron_probe_slot,
|
|
.remove_slot = jmicron_remove_slot,
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
.suspend = jmicron_suspend,
|
|
.resume = jmicron_resume,
|
|
#endif
|
|
};
|
|
|
|
/* SysKonnect CardBus2SDIO extra registers */
|
|
#define SYSKT_CTRL 0x200
|
|
#define SYSKT_RDFIFO_STAT 0x204
|
|
#define SYSKT_WRFIFO_STAT 0x208
|
|
#define SYSKT_POWER_DATA 0x20c
|
|
#define SYSKT_POWER_330 0xef
|
|
#define SYSKT_POWER_300 0xf8
|
|
#define SYSKT_POWER_184 0xcc
|
|
#define SYSKT_POWER_CMD 0x20d
|
|
#define SYSKT_POWER_START (1 << 7)
|
|
#define SYSKT_POWER_STATUS 0x20e
|
|
#define SYSKT_POWER_STATUS_OK (1 << 0)
|
|
#define SYSKT_BOARD_REV 0x210
|
|
#define SYSKT_CHIP_REV 0x211
|
|
#define SYSKT_CONF_DATA 0x212
|
|
#define SYSKT_CONF_DATA_1V8 (1 << 2)
|
|
#define SYSKT_CONF_DATA_2V5 (1 << 1)
|
|
#define SYSKT_CONF_DATA_3V3 (1 << 0)
|
|
|
|
static int syskt_probe(struct sdhci_pci_chip *chip)
|
|
{
|
|
if ((chip->pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
|
|
chip->pdev->class &= ~0x0000FF;
|
|
chip->pdev->class |= PCI_SDHCI_IFDMA;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int syskt_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
int tm, ps;
|
|
|
|
u8 board_rev = readb(slot->host->ioaddr + SYSKT_BOARD_REV);
|
|
u8 chip_rev = readb(slot->host->ioaddr + SYSKT_CHIP_REV);
|
|
dev_info(&slot->chip->pdev->dev, "SysKonnect CardBus2SDIO, "
|
|
"board rev %d.%d, chip rev %d.%d\n",
|
|
board_rev >> 4, board_rev & 0xf,
|
|
chip_rev >> 4, chip_rev & 0xf);
|
|
if (chip_rev >= 0x20)
|
|
slot->host->quirks |= SDHCI_QUIRK_FORCE_DMA;
|
|
|
|
writeb(SYSKT_POWER_330, slot->host->ioaddr + SYSKT_POWER_DATA);
|
|
writeb(SYSKT_POWER_START, slot->host->ioaddr + SYSKT_POWER_CMD);
|
|
udelay(50);
|
|
tm = 10; /* Wait max 1 ms */
|
|
do {
|
|
ps = readw(slot->host->ioaddr + SYSKT_POWER_STATUS);
|
|
if (ps & SYSKT_POWER_STATUS_OK)
|
|
break;
|
|
udelay(100);
|
|
} while (--tm);
|
|
if (!tm) {
|
|
dev_err(&slot->chip->pdev->dev,
|
|
"power regulator never stabilized");
|
|
writeb(0, slot->host->ioaddr + SYSKT_POWER_CMD);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct sdhci_pci_fixes sdhci_syskt = {
|
|
.quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER,
|
|
.probe = syskt_probe,
|
|
.probe_slot = syskt_probe_slot,
|
|
};
|
|
|
|
static int via_probe(struct sdhci_pci_chip *chip)
|
|
{
|
|
if (chip->pdev->revision == 0x10)
|
|
chip->quirks |= SDHCI_QUIRK_DELAY_AFTER_POWER;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct sdhci_pci_fixes sdhci_via = {
|
|
.probe = via_probe,
|
|
};
|
|
|
|
static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
slot->host->mmc->caps2 |= MMC_CAP2_HS200;
|
|
return 0;
|
|
}
|
|
|
|
static const struct sdhci_pci_fixes sdhci_rtsx = {
|
|
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
|
|
SDHCI_QUIRK2_BROKEN_64_BIT_DMA |
|
|
SDHCI_QUIRK2_BROKEN_DDR50,
|
|
.probe_slot = rtsx_probe_slot,
|
|
};
|
|
|
|
/*AMD chipset generation*/
|
|
enum amd_chipset_gen {
|
|
AMD_CHIPSET_BEFORE_ML,
|
|
AMD_CHIPSET_CZ,
|
|
AMD_CHIPSET_NL,
|
|
AMD_CHIPSET_UNKNOWN,
|
|
};
|
|
|
|
/* AMD registers */
|
|
#define AMD_SD_AUTO_PATTERN 0xB8
|
|
#define AMD_MSLEEP_DURATION 4
|
|
#define AMD_SD_MISC_CONTROL 0xD0
|
|
#define AMD_MAX_TUNE_VALUE 0x0B
|
|
#define AMD_AUTO_TUNE_SEL 0x10800
|
|
#define AMD_FIFO_PTR 0x30
|
|
#define AMD_BIT_MASK 0x1F
|
|
|
|
static void amd_tuning_reset(struct sdhci_host *host)
|
|
{
|
|
unsigned int val;
|
|
|
|
val = sdhci_readw(host, SDHCI_HOST_CONTROL2);
|
|
val |= SDHCI_CTRL_PRESET_VAL_ENABLE | SDHCI_CTRL_EXEC_TUNING;
|
|
sdhci_writew(host, val, SDHCI_HOST_CONTROL2);
|
|
|
|
val = sdhci_readw(host, SDHCI_HOST_CONTROL2);
|
|
val &= ~SDHCI_CTRL_EXEC_TUNING;
|
|
sdhci_writew(host, val, SDHCI_HOST_CONTROL2);
|
|
}
|
|
|
|
static void amd_config_tuning_phase(struct pci_dev *pdev, u8 phase)
|
|
{
|
|
unsigned int val;
|
|
|
|
pci_read_config_dword(pdev, AMD_SD_AUTO_PATTERN, &val);
|
|
val &= ~AMD_BIT_MASK;
|
|
val |= (AMD_AUTO_TUNE_SEL | (phase << 1));
|
|
pci_write_config_dword(pdev, AMD_SD_AUTO_PATTERN, val);
|
|
}
|
|
|
|
static void amd_enable_manual_tuning(struct pci_dev *pdev)
|
|
{
|
|
unsigned int val;
|
|
|
|
pci_read_config_dword(pdev, AMD_SD_MISC_CONTROL, &val);
|
|
val |= AMD_FIFO_PTR;
|
|
pci_write_config_dword(pdev, AMD_SD_MISC_CONTROL, val);
|
|
}
|
|
|
|
static int amd_execute_tuning(struct sdhci_host *host, u32 opcode)
|
|
{
|
|
struct sdhci_pci_slot *slot = sdhci_priv(host);
|
|
struct pci_dev *pdev = slot->chip->pdev;
|
|
u8 valid_win = 0;
|
|
u8 valid_win_max = 0;
|
|
u8 valid_win_end = 0;
|
|
u8 ctrl, tune_around;
|
|
|
|
amd_tuning_reset(host);
|
|
|
|
for (tune_around = 0; tune_around < 12; tune_around++) {
|
|
amd_config_tuning_phase(pdev, tune_around);
|
|
|
|
if (mmc_send_tuning(host->mmc, opcode, NULL)) {
|
|
valid_win = 0;
|
|
msleep(AMD_MSLEEP_DURATION);
|
|
ctrl = SDHCI_RESET_CMD | SDHCI_RESET_DATA;
|
|
sdhci_writeb(host, ctrl, SDHCI_SOFTWARE_RESET);
|
|
} else if (++valid_win > valid_win_max) {
|
|
valid_win_max = valid_win;
|
|
valid_win_end = tune_around;
|
|
}
|
|
}
|
|
|
|
if (!valid_win_max) {
|
|
dev_err(&pdev->dev, "no tuning point found\n");
|
|
return -EIO;
|
|
}
|
|
|
|
amd_config_tuning_phase(pdev, valid_win_end - valid_win_max / 2);
|
|
|
|
amd_enable_manual_tuning(pdev);
|
|
|
|
host->mmc->retune_period = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amd_probe(struct sdhci_pci_chip *chip)
|
|
{
|
|
struct pci_dev *smbus_dev;
|
|
enum amd_chipset_gen gen;
|
|
|
|
smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
|
|
PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
|
|
if (smbus_dev) {
|
|
gen = AMD_CHIPSET_BEFORE_ML;
|
|
} else {
|
|
smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
|
|
PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
|
|
if (smbus_dev) {
|
|
if (smbus_dev->revision < 0x51)
|
|
gen = AMD_CHIPSET_CZ;
|
|
else
|
|
gen = AMD_CHIPSET_NL;
|
|
} else {
|
|
gen = AMD_CHIPSET_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
if (gen == AMD_CHIPSET_BEFORE_ML || gen == AMD_CHIPSET_CZ)
|
|
chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct sdhci_ops amd_sdhci_pci_ops = {
|
|
.set_clock = sdhci_set_clock,
|
|
.enable_dma = sdhci_pci_enable_dma,
|
|
.set_bus_width = sdhci_pci_set_bus_width,
|
|
.reset = sdhci_reset,
|
|
.set_uhs_signaling = sdhci_set_uhs_signaling,
|
|
.platform_execute_tuning = amd_execute_tuning,
|
|
};
|
|
|
|
static const struct sdhci_pci_fixes sdhci_amd = {
|
|
.probe = amd_probe,
|
|
.ops = &amd_sdhci_pci_ops,
|
|
};
|
|
|
|
static const struct pci_device_id pci_ids[] = {
|
|
SDHCI_PCI_DEVICE(RICOH, R5C822, ricoh),
|
|
SDHCI_PCI_DEVICE(RICOH, R5C843, ricoh_mmc),
|
|
SDHCI_PCI_DEVICE(RICOH, R5CE822, ricoh_mmc),
|
|
SDHCI_PCI_DEVICE(RICOH, R5CE823, ricoh_mmc),
|
|
SDHCI_PCI_DEVICE(ENE, CB712_SD, ene_712),
|
|
SDHCI_PCI_DEVICE(ENE, CB712_SD_2, ene_712),
|
|
SDHCI_PCI_DEVICE(ENE, CB714_SD, ene_714),
|
|
SDHCI_PCI_DEVICE(ENE, CB714_SD_2, ene_714),
|
|
SDHCI_PCI_DEVICE(MARVELL, 88ALP01_SD, cafe),
|
|
SDHCI_PCI_DEVICE(JMICRON, JMB38X_SD, jmicron),
|
|
SDHCI_PCI_DEVICE(JMICRON, JMB38X_MMC, jmicron),
|
|
SDHCI_PCI_DEVICE(JMICRON, JMB388_SD, jmicron),
|
|
SDHCI_PCI_DEVICE(JMICRON, JMB388_ESD, jmicron),
|
|
SDHCI_PCI_DEVICE(SYSKONNECT, 8000, syskt),
|
|
SDHCI_PCI_DEVICE(VIA, 95D0, via),
|
|
SDHCI_PCI_DEVICE(REALTEK, 5250, rtsx),
|
|
SDHCI_PCI_DEVICE(INTEL, QRK_SD, intel_qrk),
|
|
SDHCI_PCI_DEVICE(INTEL, MRST_SD0, intel_mrst_hc0),
|
|
SDHCI_PCI_DEVICE(INTEL, MRST_SD1, intel_mrst_hc1_hc2),
|
|
SDHCI_PCI_DEVICE(INTEL, MRST_SD2, intel_mrst_hc1_hc2),
|
|
SDHCI_PCI_DEVICE(INTEL, MFD_SD, intel_mfd_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, MFD_SDIO1, intel_mfd_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, MFD_SDIO2, intel_mfd_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, MFD_EMMC0, intel_mfd_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, MFD_EMMC1, intel_mfd_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, PCH_SDIO0, intel_pch_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, PCH_SDIO1, intel_pch_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, BYT_EMMC, intel_byt_emmc),
|
|
SDHCI_PCI_SUBDEVICE(INTEL, BYT_SDIO, NI, 7884, ni_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, BYT_SDIO, intel_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, BYT_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, BYT_EMMC2, intel_byt_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, BSW_EMMC, intel_byt_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, BSW_SDIO, intel_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, BSW_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, CLV_SDIO0, intel_mfd_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, CLV_SDIO1, intel_mfd_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, CLV_SDIO2, intel_mfd_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, CLV_EMMC0, intel_mfd_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, CLV_EMMC1, intel_mfd_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, MRFLD_MMC, intel_mrfld_mmc),
|
|
SDHCI_PCI_DEVICE(INTEL, SPT_EMMC, intel_byt_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, SPT_SDIO, intel_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, SPT_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, DNV_EMMC, intel_byt_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, BXT_EMMC, intel_byt_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, BXT_SDIO, intel_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, BXT_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, BXTM_EMMC, intel_byt_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, BXTM_SDIO, intel_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, BXTM_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, APL_EMMC, intel_byt_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, APL_SDIO, intel_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, APL_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, GLK_EMMC, intel_glk_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, GLK_SDIO, intel_byt_sdio),
|
|
SDHCI_PCI_DEVICE(INTEL, GLK_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, CNP_EMMC, intel_glk_emmc),
|
|
SDHCI_PCI_DEVICE(INTEL, CNP_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(INTEL, CNPH_SD, intel_byt_sd),
|
|
SDHCI_PCI_DEVICE(O2, 8120, o2),
|
|
SDHCI_PCI_DEVICE(O2, 8220, o2),
|
|
SDHCI_PCI_DEVICE(O2, 8221, o2),
|
|
SDHCI_PCI_DEVICE(O2, 8320, o2),
|
|
SDHCI_PCI_DEVICE(O2, 8321, o2),
|
|
SDHCI_PCI_DEVICE(O2, FUJIN2, o2),
|
|
SDHCI_PCI_DEVICE(O2, SDS0, o2),
|
|
SDHCI_PCI_DEVICE(O2, SDS1, o2),
|
|
SDHCI_PCI_DEVICE(O2, SEABIRD0, o2),
|
|
SDHCI_PCI_DEVICE(O2, SEABIRD1, o2),
|
|
SDHCI_PCI_DEVICE_CLASS(AMD, SYSTEM_SDHCI, PCI_CLASS_MASK, amd),
|
|
/* Generic SD host controller */
|
|
{PCI_DEVICE_CLASS(SYSTEM_SDHCI, PCI_CLASS_MASK)},
|
|
{ /* end: all zeroes */ },
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, pci_ids);
|
|
|
|
/*****************************************************************************\
|
|
* *
|
|
* SDHCI core callbacks *
|
|
* *
|
|
\*****************************************************************************/
|
|
|
|
static int sdhci_pci_enable_dma(struct sdhci_host *host)
|
|
{
|
|
struct sdhci_pci_slot *slot;
|
|
struct pci_dev *pdev;
|
|
|
|
slot = sdhci_priv(host);
|
|
pdev = slot->chip->pdev;
|
|
|
|
if (((pdev->class & 0xFFFF00) == (PCI_CLASS_SYSTEM_SDHCI << 8)) &&
|
|
((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA) &&
|
|
(host->flags & SDHCI_USE_SDMA)) {
|
|
dev_warn(&pdev->dev, "Will use DMA mode even though HW "
|
|
"doesn't fully claim to support it.\n");
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void sdhci_pci_set_bus_width(struct sdhci_host *host, int width)
|
|
{
|
|
u8 ctrl;
|
|
|
|
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
|
|
|
|
switch (width) {
|
|
case MMC_BUS_WIDTH_8:
|
|
ctrl |= SDHCI_CTRL_8BITBUS;
|
|
ctrl &= ~SDHCI_CTRL_4BITBUS;
|
|
break;
|
|
case MMC_BUS_WIDTH_4:
|
|
ctrl |= SDHCI_CTRL_4BITBUS;
|
|
ctrl &= ~SDHCI_CTRL_8BITBUS;
|
|
break;
|
|
default:
|
|
ctrl &= ~(SDHCI_CTRL_8BITBUS | SDHCI_CTRL_4BITBUS);
|
|
break;
|
|
}
|
|
|
|
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
|
|
}
|
|
|
|
static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host)
|
|
{
|
|
struct sdhci_pci_slot *slot = sdhci_priv(host);
|
|
int rst_n_gpio = slot->rst_n_gpio;
|
|
|
|
if (!gpio_is_valid(rst_n_gpio))
|
|
return;
|
|
gpio_set_value_cansleep(rst_n_gpio, 0);
|
|
/* For eMMC, minimum is 1us but give it 10us for good measure */
|
|
udelay(10);
|
|
gpio_set_value_cansleep(rst_n_gpio, 1);
|
|
/* For eMMC, minimum is 200us but give it 300us for good measure */
|
|
usleep_range(300, 1000);
|
|
}
|
|
|
|
static void sdhci_pci_hw_reset(struct sdhci_host *host)
|
|
{
|
|
struct sdhci_pci_slot *slot = sdhci_priv(host);
|
|
|
|
if (slot->hw_reset)
|
|
slot->hw_reset(host);
|
|
}
|
|
|
|
static const struct sdhci_ops sdhci_pci_ops = {
|
|
.set_clock = sdhci_set_clock,
|
|
.enable_dma = sdhci_pci_enable_dma,
|
|
.set_bus_width = sdhci_pci_set_bus_width,
|
|
.reset = sdhci_reset,
|
|
.set_uhs_signaling = sdhci_set_uhs_signaling,
|
|
.hw_reset = sdhci_pci_hw_reset,
|
|
};
|
|
|
|
/*****************************************************************************\
|
|
* *
|
|
* Suspend/resume *
|
|
* *
|
|
\*****************************************************************************/
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int sdhci_pci_suspend(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct sdhci_pci_chip *chip = pci_get_drvdata(pdev);
|
|
|
|
if (!chip)
|
|
return 0;
|
|
|
|
if (chip->fixes && chip->fixes->suspend)
|
|
return chip->fixes->suspend(chip);
|
|
|
|
return sdhci_pci_suspend_host(chip);
|
|
}
|
|
|
|
static int sdhci_pci_resume(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct sdhci_pci_chip *chip = pci_get_drvdata(pdev);
|
|
|
|
if (!chip)
|
|
return 0;
|
|
|
|
if (chip->fixes && chip->fixes->resume)
|
|
return chip->fixes->resume(chip);
|
|
|
|
return sdhci_pci_resume_host(chip);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_PM
|
|
static int sdhci_pci_runtime_suspend(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct sdhci_pci_chip *chip = pci_get_drvdata(pdev);
|
|
|
|
if (!chip)
|
|
return 0;
|
|
|
|
if (chip->fixes && chip->fixes->runtime_suspend)
|
|
return chip->fixes->runtime_suspend(chip);
|
|
|
|
return sdhci_pci_runtime_suspend_host(chip);
|
|
}
|
|
|
|
static int sdhci_pci_runtime_resume(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct sdhci_pci_chip *chip = pci_get_drvdata(pdev);
|
|
|
|
if (!chip)
|
|
return 0;
|
|
|
|
if (chip->fixes && chip->fixes->runtime_resume)
|
|
return chip->fixes->runtime_resume(chip);
|
|
|
|
return sdhci_pci_runtime_resume_host(chip);
|
|
}
|
|
#endif
|
|
|
|
static const struct dev_pm_ops sdhci_pci_pm_ops = {
|
|
SET_SYSTEM_SLEEP_PM_OPS(sdhci_pci_suspend, sdhci_pci_resume)
|
|
SET_RUNTIME_PM_OPS(sdhci_pci_runtime_suspend,
|
|
sdhci_pci_runtime_resume, NULL)
|
|
};
|
|
|
|
/*****************************************************************************\
|
|
* *
|
|
* Device probing/removal *
|
|
* *
|
|
\*****************************************************************************/
|
|
|
|
static struct sdhci_pci_slot *sdhci_pci_probe_slot(
|
|
struct pci_dev *pdev, struct sdhci_pci_chip *chip, int first_bar,
|
|
int slotno)
|
|
{
|
|
struct sdhci_pci_slot *slot;
|
|
struct sdhci_host *host;
|
|
int ret, bar = first_bar + slotno;
|
|
size_t priv_size = chip->fixes ? chip->fixes->priv_size : 0;
|
|
|
|
if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
|
|
dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar);
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
if (pci_resource_len(pdev, bar) < 0x100) {
|
|
dev_err(&pdev->dev, "Invalid iomem size. You may "
|
|
"experience problems.\n");
|
|
}
|
|
|
|
if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
|
|
dev_err(&pdev->dev, "Vendor specific interface. Aborting.\n");
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) {
|
|
dev_err(&pdev->dev, "Unknown interface. Aborting.\n");
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
host = sdhci_alloc_host(&pdev->dev, sizeof(*slot) + priv_size);
|
|
if (IS_ERR(host)) {
|
|
dev_err(&pdev->dev, "cannot allocate host\n");
|
|
return ERR_CAST(host);
|
|
}
|
|
|
|
slot = sdhci_priv(host);
|
|
|
|
slot->chip = chip;
|
|
slot->host = host;
|
|
slot->rst_n_gpio = -EINVAL;
|
|
slot->cd_gpio = -EINVAL;
|
|
slot->cd_idx = -1;
|
|
|
|
/* Retrieve platform data if there is any */
|
|
if (*sdhci_pci_get_data)
|
|
slot->data = sdhci_pci_get_data(pdev, slotno);
|
|
|
|
if (slot->data) {
|
|
if (slot->data->setup) {
|
|
ret = slot->data->setup(slot->data);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "platform setup failed\n");
|
|
goto free;
|
|
}
|
|
}
|
|
slot->rst_n_gpio = slot->data->rst_n_gpio;
|
|
slot->cd_gpio = slot->data->cd_gpio;
|
|
}
|
|
|
|
host->hw_name = "PCI";
|
|
host->ops = chip->fixes && chip->fixes->ops ?
|
|
chip->fixes->ops :
|
|
&sdhci_pci_ops;
|
|
host->quirks = chip->quirks;
|
|
host->quirks2 = chip->quirks2;
|
|
|
|
host->irq = pdev->irq;
|
|
|
|
ret = pcim_iomap_regions(pdev, BIT(bar), mmc_hostname(host->mmc));
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "cannot request region\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
host->ioaddr = pcim_iomap_table(pdev)[bar];
|
|
|
|
if (chip->fixes && chip->fixes->probe_slot) {
|
|
ret = chip->fixes->probe_slot(slot);
|
|
if (ret)
|
|
goto cleanup;
|
|
}
|
|
|
|
if (gpio_is_valid(slot->rst_n_gpio)) {
|
|
if (!devm_gpio_request(&pdev->dev, slot->rst_n_gpio, "eMMC_reset")) {
|
|
gpio_direction_output(slot->rst_n_gpio, 1);
|
|
slot->host->mmc->caps |= MMC_CAP_HW_RESET;
|
|
slot->hw_reset = sdhci_pci_gpio_hw_reset;
|
|
} else {
|
|
dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
|
|
slot->rst_n_gpio = -EINVAL;
|
|
}
|
|
}
|
|
|
|
host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ;
|
|
host->mmc->slotno = slotno;
|
|
host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
|
|
|
|
if (slot->cd_idx >= 0) {
|
|
ret = mmc_gpiod_request_cd(host->mmc, NULL, slot->cd_idx,
|
|
slot->cd_override_level, 0, NULL);
|
|
if (ret == -EPROBE_DEFER)
|
|
goto remove;
|
|
|
|
if (ret) {
|
|
dev_warn(&pdev->dev, "failed to setup card detect gpio\n");
|
|
slot->cd_idx = -1;
|
|
}
|
|
}
|
|
|
|
if (chip->fixes && chip->fixes->add_host)
|
|
ret = chip->fixes->add_host(slot);
|
|
else
|
|
ret = sdhci_add_host(host);
|
|
if (ret)
|
|
goto remove;
|
|
|
|
sdhci_pci_add_own_cd(slot);
|
|
|
|
/*
|
|
* Check if the chip needs a separate GPIO for card detect to wake up
|
|
* from runtime suspend. If it is not there, don't allow runtime PM.
|
|
* Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure.
|
|
*/
|
|
if (chip->fixes && chip->fixes->own_cd_for_runtime_pm &&
|
|
!gpio_is_valid(slot->cd_gpio) && slot->cd_idx < 0)
|
|
chip->allow_runtime_pm = false;
|
|
|
|
return slot;
|
|
|
|
remove:
|
|
if (chip->fixes && chip->fixes->remove_slot)
|
|
chip->fixes->remove_slot(slot, 0);
|
|
|
|
cleanup:
|
|
if (slot->data && slot->data->cleanup)
|
|
slot->data->cleanup(slot->data);
|
|
|
|
free:
|
|
sdhci_free_host(host);
|
|
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
|
|
{
|
|
int dead;
|
|
u32 scratch;
|
|
|
|
sdhci_pci_remove_own_cd(slot);
|
|
|
|
dead = 0;
|
|
scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS);
|
|
if (scratch == (u32)-1)
|
|
dead = 1;
|
|
|
|
sdhci_remove_host(slot->host, dead);
|
|
|
|
if (slot->chip->fixes && slot->chip->fixes->remove_slot)
|
|
slot->chip->fixes->remove_slot(slot, dead);
|
|
|
|
if (slot->data && slot->data->cleanup)
|
|
slot->data->cleanup(slot->data);
|
|
|
|
sdhci_free_host(slot->host);
|
|
}
|
|
|
|
static void sdhci_pci_runtime_pm_allow(struct device *dev)
|
|
{
|
|
pm_suspend_ignore_children(dev, 1);
|
|
pm_runtime_set_autosuspend_delay(dev, 50);
|
|
pm_runtime_use_autosuspend(dev);
|
|
pm_runtime_allow(dev);
|
|
/* Stay active until mmc core scans for a card */
|
|
pm_runtime_put_noidle(dev);
|
|
}
|
|
|
|
static void sdhci_pci_runtime_pm_forbid(struct device *dev)
|
|
{
|
|
pm_runtime_forbid(dev);
|
|
pm_runtime_get_noresume(dev);
|
|
}
|
|
|
|
static int sdhci_pci_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct sdhci_pci_chip *chip;
|
|
struct sdhci_pci_slot *slot;
|
|
|
|
u8 slots, first_bar;
|
|
int ret, i;
|
|
|
|
BUG_ON(pdev == NULL);
|
|
BUG_ON(ent == NULL);
|
|
|
|
dev_info(&pdev->dev, "SDHCI controller found [%04x:%04x] (rev %x)\n",
|
|
(int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
|
|
|
|
ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
|
|
if (ret)
|
|
return ret;
|
|
|
|
slots = PCI_SLOT_INFO_SLOTS(slots) + 1;
|
|
dev_dbg(&pdev->dev, "found %d slot(s)\n", slots);
|
|
if (slots == 0)
|
|
return -ENODEV;
|
|
|
|
BUG_ON(slots > MAX_SLOTS);
|
|
|
|
ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar);
|
|
if (ret)
|
|
return ret;
|
|
|
|
first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;
|
|
|
|
if (first_bar > 5) {
|
|
dev_err(&pdev->dev, "Invalid first BAR. Aborting.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = pcim_enable_device(pdev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
|
|
if (!chip)
|
|
return -ENOMEM;
|
|
|
|
chip->pdev = pdev;
|
|
chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data;
|
|
if (chip->fixes) {
|
|
chip->quirks = chip->fixes->quirks;
|
|
chip->quirks2 = chip->fixes->quirks2;
|
|
chip->allow_runtime_pm = chip->fixes->allow_runtime_pm;
|
|
}
|
|
chip->num_slots = slots;
|
|
chip->pm_retune = true;
|
|
chip->rpm_retune = true;
|
|
|
|
pci_set_drvdata(pdev, chip);
|
|
|
|
if (chip->fixes && chip->fixes->probe) {
|
|
ret = chip->fixes->probe(chip);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
slots = chip->num_slots; /* Quirk may have changed this */
|
|
|
|
for (i = 0; i < slots; i++) {
|
|
slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i);
|
|
if (IS_ERR(slot)) {
|
|
for (i--; i >= 0; i--)
|
|
sdhci_pci_remove_slot(chip->slots[i]);
|
|
return PTR_ERR(slot);
|
|
}
|
|
|
|
chip->slots[i] = slot;
|
|
}
|
|
|
|
if (chip->allow_runtime_pm)
|
|
sdhci_pci_runtime_pm_allow(&pdev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void sdhci_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
int i;
|
|
struct sdhci_pci_chip *chip = pci_get_drvdata(pdev);
|
|
|
|
if (chip->allow_runtime_pm)
|
|
sdhci_pci_runtime_pm_forbid(&pdev->dev);
|
|
|
|
for (i = 0; i < chip->num_slots; i++)
|
|
sdhci_pci_remove_slot(chip->slots[i]);
|
|
}
|
|
|
|
static struct pci_driver sdhci_driver = {
|
|
.name = "sdhci-pci",
|
|
.id_table = pci_ids,
|
|
.probe = sdhci_pci_probe,
|
|
.remove = sdhci_pci_remove,
|
|
.driver = {
|
|
.pm = &sdhci_pci_pm_ops
|
|
},
|
|
};
|
|
|
|
module_pci_driver(sdhci_driver);
|
|
|
|
MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
|
|
MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver");
|
|
MODULE_LICENSE("GPL");
|