diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/mmc/host/sdhci-pci.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/mmc/host/sdhci-pci.c | 1499 |
1 files changed, 0 insertions, 1499 deletions
diff --git a/ANDROID_3.4.5/drivers/mmc/host/sdhci-pci.c b/ANDROID_3.4.5/drivers/mmc/host/sdhci-pci.c deleted file mode 100644 index 69ef0bea..00000000 --- a/ANDROID_3.4.5/drivers/mmc/host/sdhci-pci.c +++ /dev/null @@ -1,1499 +0,0 @@ -/* linux/drivers/mmc/host/sdhci-pci.c - SDHCI on PCI bus interface - * - * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * Thanks to the following companies for their support: - * - * - JMicron (hardware and technical support) - */ - -#include <linux/delay.h> -#include <linux/highmem.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> -#include <linux/device.h> -#include <linux/mmc/host.h> -#include <linux/scatterlist.h> -#include <linux/io.h> -#include <linux/gpio.h> -#include <linux/pm_runtime.h> -#include <linux/mmc/sdhci-pci-data.h> - -#include "sdhci.h" - -/* - * PCI device IDs - */ -#define PCI_DEVICE_ID_INTEL_PCH_SDIO0 0x8809 -#define PCI_DEVICE_ID_INTEL_PCH_SDIO1 0x880a - -/* - * PCI registers - */ - -#define PCI_SDHCI_IFPIO 0x00 -#define PCI_SDHCI_IFDMA 0x01 -#define PCI_SDHCI_IFVENDOR 0x02 - -#define PCI_SLOT_INFO 0x40 /* 8 bits */ -#define PCI_SLOT_INFO_SLOTS(x) ((x >> 4) & 7) -#define PCI_SLOT_INFO_FIRST_BAR_MASK 0x07 - -#define MAX_SLOTS 8 - -struct sdhci_pci_chip; -struct sdhci_pci_slot; - -struct sdhci_pci_fixes { - unsigned int quirks; - unsigned int quirks2; - bool allow_runtime_pm; - - int (*probe) (struct sdhci_pci_chip *); - - int (*probe_slot) (struct sdhci_pci_slot *); - void (*remove_slot) (struct sdhci_pci_slot *, int); - - int (*suspend) (struct sdhci_pci_chip *); - int (*resume) (struct sdhci_pci_chip *); -}; - -struct sdhci_pci_slot { - struct sdhci_pci_chip *chip; - struct sdhci_host *host; - struct sdhci_pci_data *data; - - int pci_bar; - int rst_n_gpio; - int cd_gpio; - int cd_irq; -}; - -struct sdhci_pci_chip { - struct pci_dev *pdev; - - unsigned int quirks; - unsigned int quirks2; - bool allow_runtime_pm; - const struct sdhci_pci_fixes *fixes; - - int num_slots; /* Slots on controller */ - struct sdhci_pci_slot *slots[MAX_SLOTS]; /* Pointers to host slots */ -}; - - -/*****************************************************************************\ - * * - * Hardware specific quirk handling * - * * -\*****************************************************************************/ - -static int ricoh_probe(struct sdhci_pci_chip *chip) -{ - if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG || - chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY) - chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET; - return 0; -} - -static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot) -{ - slot->host->caps = - ((0x21 << SDHCI_TIMEOUT_CLK_SHIFT) - & SDHCI_TIMEOUT_CLK_MASK) | - - ((0x21 << SDHCI_CLOCK_BASE_SHIFT) - & SDHCI_CLOCK_BASE_MASK) | - - SDHCI_TIMEOUT_CLK_UNIT | - SDHCI_CAN_VDD_330 | - SDHCI_CAN_DO_SDMA; - return 0; -} - -static int ricoh_mmc_resume(struct sdhci_pci_chip *chip) -{ - /* Apply a delay to allow controller to settle */ - /* Otherwise it becomes confused if card state changed - during suspend */ - msleep(500); - return 0; -} - -static const struct sdhci_pci_fixes sdhci_ricoh = { - .probe = ricoh_probe, - .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | - SDHCI_QUIRK_FORCE_DMA | - SDHCI_QUIRK_CLOCK_BEFORE_RESET, -}; - -static const struct sdhci_pci_fixes sdhci_ricoh_mmc = { - .probe_slot = ricoh_mmc_probe_slot, - .resume = ricoh_mmc_resume, - .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | - SDHCI_QUIRK_CLOCK_BEFORE_RESET | - SDHCI_QUIRK_NO_CARD_NO_RESET | - SDHCI_QUIRK_MISSING_CAPS -}; - -static const struct sdhci_pci_fixes sdhci_ene_712 = { - .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | - SDHCI_QUIRK_BROKEN_DMA, -}; - -static const struct sdhci_pci_fixes sdhci_ene_714 = { - .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | - SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | - SDHCI_QUIRK_BROKEN_DMA, -}; - -static const struct sdhci_pci_fixes sdhci_cafe = { - .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | - SDHCI_QUIRK_NO_BUSY_IRQ | - SDHCI_QUIRK_BROKEN_TIMEOUT_VAL, -}; - -static int mrst_hc_probe_slot(struct sdhci_pci_slot *slot) -{ - slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA; - return 0; -} - -/* - * ADMA operation is disabled for Moorestown platform due to - * hardware bugs. - */ -static int mrst_hc_probe(struct sdhci_pci_chip *chip) -{ - /* - * slots number is fixed here for MRST as SDIO3/5 are never used and - * have hardware bugs. - */ - chip->num_slots = 1; - return 0; -} - -static int pch_hc_probe_slot(struct sdhci_pci_slot *slot) -{ - slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA; - return 0; -} - -#ifdef CONFIG_PM_RUNTIME - -static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id) -{ - struct sdhci_pci_slot *slot = dev_id; - struct sdhci_host *host = slot->host; - - mmc_detect_change(host->mmc, msecs_to_jiffies(200)); - return IRQ_HANDLED; -} - -static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot) -{ - int err, irq, gpio = slot->cd_gpio; - - slot->cd_gpio = -EINVAL; - slot->cd_irq = -EINVAL; - - if (!gpio_is_valid(gpio)) - return; - - err = gpio_request(gpio, "sd_cd"); - if (err < 0) - goto out; - - err = gpio_direction_input(gpio); - if (err < 0) - goto out_free; - - irq = gpio_to_irq(gpio); - if (irq < 0) - goto out_free; - - err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING | - IRQF_TRIGGER_FALLING, "sd_cd", slot); - if (err) - goto out_free; - - slot->cd_gpio = gpio; - slot->cd_irq = irq; - - return; - -out_free: - gpio_free(gpio); -out: - dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n"); -} - -static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot) -{ - if (slot->cd_irq >= 0) - free_irq(slot->cd_irq, slot); - if (gpio_is_valid(slot->cd_gpio)) - gpio_free(slot->cd_gpio); -} - -#else - -static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot) -{ -} - -static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot) -{ -} - -#endif - -static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot) -{ - slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE; - slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC | - MMC_CAP2_HC_ERASE_SZ; - return 0; -} - -static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot) -{ - slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE; - return 0; -} - -static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = { - .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, - .probe_slot = mrst_hc_probe_slot, -}; - -static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = { - .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, - .probe = mrst_hc_probe, -}; - -static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = { - .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, - .allow_runtime_pm = true, -}; - -static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = { - .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, - .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON, - .allow_runtime_pm = true, - .probe_slot = mfd_sdio_probe_slot, -}; - -static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = { - .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, - .allow_runtime_pm = true, - .probe_slot = mfd_emmc_probe_slot, -}; - -static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = { - .quirks = SDHCI_QUIRK_BROKEN_ADMA, - .probe_slot = pch_hc_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 o2_probe(struct sdhci_pci_chip *chip) -{ - int ret; - u8 scratch; - - switch (chip->pdev->device) { - case PCI_DEVICE_ID_O2_8220: - case PCI_DEVICE_ID_O2_8221: - case PCI_DEVICE_ID_O2_8320: - case PCI_DEVICE_ID_O2_8321: - /* This extra setup is required due to broken ADMA. */ - ret = pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch); - if (ret) - return ret; - scratch &= 0x7f; - pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch); - - /* Set Multi 3 to VCC3V# */ - pci_write_config_byte(chip->pdev, O2_SD_MULTI_VCC3V, 0x08); - - /* Disable CLK_REQ# support after media DET */ - ret = pci_read_config_byte(chip->pdev, O2_SD_CLKREQ, &scratch); - if (ret) - return ret; - scratch |= 0x20; - pci_write_config_byte(chip->pdev, O2_SD_CLKREQ, scratch); - - /* Choose capabilities, enable SDMA. We have to write 0x01 - * to the capabilities register first to unlock it. - */ - ret = pci_read_config_byte(chip->pdev, O2_SD_CAPS, &scratch); - if (ret) - return ret; - scratch |= 0x01; - pci_write_config_byte(chip->pdev, O2_SD_CAPS, scratch); - pci_write_config_byte(chip->pdev, O2_SD_CAPS, 0x73); - - /* Disable ADMA1/2 */ - pci_write_config_byte(chip->pdev, O2_SD_ADMA1, 0x39); - pci_write_config_byte(chip->pdev, O2_SD_ADMA2, 0x08); - - /* Disable the infinite transfer mode */ - ret = pci_read_config_byte(chip->pdev, O2_SD_INF_MOD, &scratch); - if (ret) - return ret; - scratch |= 0x08; - pci_write_config_byte(chip->pdev, O2_SD_INF_MOD, scratch); - - /* Lock WP */ - ret = pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch); - if (ret) - return ret; - scratch |= 0x80; - pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch); - } - - return 0; -} - -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; - - ret = pci_write_config_byte(chip->pdev, 0xAE, scratch); - if (ret) - return ret; - - return 0; -} - -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); -} - -static int jmicron_suspend(struct sdhci_pci_chip *chip) -{ - int 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, 0); - } - - 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 0; -} - -static const struct sdhci_pci_fixes sdhci_o2 = { - .probe = o2_probe, -}; - -static const struct sdhci_pci_fixes sdhci_jmicron = { - .probe = jmicron_probe, - - .probe_slot = jmicron_probe_slot, - .remove_slot = jmicron_remove_slot, - - .suspend = jmicron_suspend, - .resume = jmicron_resume, -}; - -/* 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 const struct pci_device_id pci_ids[] __devinitdata = { - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = PCI_DEVICE_ID_RICOH_R5C822, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh, - }, - - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = 0x843, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, - }, - - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = 0xe822, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, - }, - - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = 0xe823, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB712_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_712, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB712_SD_2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_712, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB714_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_714, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB714_SD_2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_714, - }, - - { - .vendor = PCI_VENDOR_ID_MARVELL, - .device = PCI_DEVICE_ID_MARVELL_88ALP01_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_cafe, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB38X_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB38X_MMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB388_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB388_ESD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_SYSKONNECT, - .device = 0x8000, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_syskt, - }, - - { - .vendor = PCI_VENDOR_ID_VIA, - .device = 0x95d0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_via, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MRST_SD0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc0, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MRST_SD1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MRST_SD2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_SDIO1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_SDIO2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_EMMC0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_EMMC1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_PCH_SDIO0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_PCH_SDIO1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8120, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8220, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8221, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8320, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8321, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { /* Generic SD host controller */ - PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00) - }, - - { /* 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; - int ret; - - 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"); - } - - ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (ret) - return ret; - - pci_set_master(pdev); - - return 0; -} - -static int sdhci_pci_8bit_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); - - return 0; -} - -static void sdhci_pci_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 struct sdhci_ops sdhci_pci_ops = { - .enable_dma = sdhci_pci_enable_dma, - .platform_8bit_width = sdhci_pci_8bit_width, - .hw_reset = sdhci_pci_hw_reset, -}; - -/*****************************************************************************\ - * * - * Suspend/resume * - * * -\*****************************************************************************/ - -#ifdef CONFIG_PM - -static int sdhci_pci_suspend(struct device *dev) -{ - struct pci_dev *pdev = to_pci_dev(dev); - struct sdhci_pci_chip *chip; - struct sdhci_pci_slot *slot; - mmc_pm_flag_t slot_pm_flags; - mmc_pm_flag_t pm_flags = 0; - int i, ret; - - chip = pci_get_drvdata(pdev); - if (!chip) - return 0; - - for (i = 0; i < chip->num_slots; i++) { - slot = chip->slots[i]; - if (!slot) - continue; - - ret = sdhci_suspend_host(slot->host); - - if (ret) - goto err_pci_suspend; - - slot_pm_flags = slot->host->mmc->pm_flags; - if (slot_pm_flags & MMC_PM_WAKE_SDIO_IRQ) - sdhci_enable_irq_wakeups(slot->host); - - pm_flags |= slot_pm_flags; - } - - if (chip->fixes && chip->fixes->suspend) { - ret = chip->fixes->suspend(chip); - if (ret) - goto err_pci_suspend; - } - - pci_save_state(pdev); - if (pm_flags & MMC_PM_KEEP_POWER) { - if (pm_flags & MMC_PM_WAKE_SDIO_IRQ) { - pci_pme_active(pdev, true); - pci_enable_wake(pdev, PCI_D3hot, 1); - } - pci_set_power_state(pdev, PCI_D3hot); - } else { - pci_enable_wake(pdev, PCI_D3hot, 0); - pci_disable_device(pdev); - pci_set_power_state(pdev, PCI_D3hot); - } - - return 0; - -err_pci_suspend: - while (--i >= 0) - sdhci_resume_host(chip->slots[i]->host); - return ret; -} - -static int sdhci_pci_resume(struct device *dev) -{ - struct pci_dev *pdev = to_pci_dev(dev); - struct sdhci_pci_chip *chip; - struct sdhci_pci_slot *slot; - int i, ret; - - chip = pci_get_drvdata(pdev); - if (!chip) - return 0; - - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - ret = pci_enable_device(pdev); - if (ret) - return ret; - - if (chip->fixes && chip->fixes->resume) { - ret = chip->fixes->resume(chip); - if (ret) - return ret; - } - - for (i = 0; i < chip->num_slots; i++) { - slot = chip->slots[i]; - if (!slot) - continue; - - ret = sdhci_resume_host(slot->host); - if (ret) - return ret; - } - - return 0; -} - -#else /* CONFIG_PM */ - -#define sdhci_pci_suspend NULL -#define sdhci_pci_resume NULL - -#endif /* CONFIG_PM */ - -#ifdef CONFIG_PM_RUNTIME - -static int sdhci_pci_runtime_suspend(struct device *dev) -{ - struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); - struct sdhci_pci_chip *chip; - struct sdhci_pci_slot *slot; - int i, ret; - - chip = pci_get_drvdata(pdev); - if (!chip) - return 0; - - for (i = 0; i < chip->num_slots; i++) { - slot = chip->slots[i]; - if (!slot) - continue; - - ret = sdhci_runtime_suspend_host(slot->host); - - if (ret) - goto err_pci_runtime_suspend; - } - - if (chip->fixes && chip->fixes->suspend) { - ret = chip->fixes->suspend(chip); - if (ret) - goto err_pci_runtime_suspend; - } - - return 0; - -err_pci_runtime_suspend: - while (--i >= 0) - sdhci_runtime_resume_host(chip->slots[i]->host); - return ret; -} - -static int sdhci_pci_runtime_resume(struct device *dev) -{ - struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); - struct sdhci_pci_chip *chip; - struct sdhci_pci_slot *slot; - int i, ret; - - chip = pci_get_drvdata(pdev); - if (!chip) - return 0; - - if (chip->fixes && chip->fixes->resume) { - ret = chip->fixes->resume(chip); - if (ret) - return ret; - } - - for (i = 0; i < chip->num_slots; i++) { - slot = chip->slots[i]; - if (!slot) - continue; - - ret = sdhci_runtime_resume_host(slot->host); - if (ret) - return ret; - } - - return 0; -} - -static int sdhci_pci_runtime_idle(struct device *dev) -{ - return 0; -} - -#else - -#define sdhci_pci_runtime_suspend NULL -#define sdhci_pci_runtime_resume NULL -#define sdhci_pci_runtime_idle NULL - -#endif - -static const struct dev_pm_ops sdhci_pci_pm_ops = { - .suspend = sdhci_pci_suspend, - .resume = sdhci_pci_resume, - .runtime_suspend = sdhci_pci_runtime_suspend, - .runtime_resume = sdhci_pci_runtime_resume, - .runtime_idle = sdhci_pci_runtime_idle, -}; - -/*****************************************************************************\ - * * - * Device probing/removal * - * * -\*****************************************************************************/ - -static struct sdhci_pci_slot * __devinit 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; - - 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(struct sdhci_pci_slot)); - 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->pci_bar = bar; - slot->rst_n_gpio = -EINVAL; - slot->cd_gpio = -EINVAL; - - /* 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 = &sdhci_pci_ops; - host->quirks = chip->quirks; - host->quirks2 = chip->quirks2; - - host->irq = pdev->irq; - - ret = pci_request_region(pdev, bar, mmc_hostname(host->mmc)); - if (ret) { - dev_err(&pdev->dev, "cannot request region\n"); - goto cleanup; - } - - host->ioaddr = pci_ioremap_bar(pdev, bar); - if (!host->ioaddr) { - dev_err(&pdev->dev, "failed to remap registers\n"); - ret = -ENOMEM; - goto release; - } - - if (chip->fixes && chip->fixes->probe_slot) { - ret = chip->fixes->probe_slot(slot); - if (ret) - goto unmap; - } - - if (gpio_is_valid(slot->rst_n_gpio)) { - if (!gpio_request(slot->rst_n_gpio, "eMMC_reset")) { - gpio_direction_output(slot->rst_n_gpio, 1); - slot->host->mmc->caps |= MMC_CAP_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; - - ret = sdhci_add_host(host); - if (ret) - goto remove; - - sdhci_pci_add_own_cd(slot); - - return slot; - -remove: - if (gpio_is_valid(slot->rst_n_gpio)) - gpio_free(slot->rst_n_gpio); - - if (chip->fixes && chip->fixes->remove_slot) - chip->fixes->remove_slot(slot, 0); - -unmap: - iounmap(host->ioaddr); - -release: - pci_release_region(pdev, bar); - -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 (gpio_is_valid(slot->rst_n_gpio)) - gpio_free(slot->rst_n_gpio); - - 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); - - pci_release_region(slot->chip->pdev, slot->pci_bar); - - sdhci_free_host(slot->host); -} - -static void __devinit sdhci_pci_runtime_pm_allow(struct device *dev) -{ - pm_runtime_put_noidle(dev); - pm_runtime_allow(dev); - pm_runtime_set_autosuspend_delay(dev, 50); - pm_runtime_use_autosuspend(dev); - pm_suspend_ignore_children(dev, 1); -} - -static void __devexit sdhci_pci_runtime_pm_forbid(struct device *dev) -{ - pm_runtime_forbid(dev); - pm_runtime_get_noresume(dev); -} - -static int __devinit 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 = pci_enable_device(pdev); - if (ret) - return ret; - - chip = kzalloc(sizeof(struct sdhci_pci_chip), GFP_KERNEL); - if (!chip) { - ret = -ENOMEM; - goto err; - } - - 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; - - pci_set_drvdata(pdev, chip); - - if (chip->fixes && chip->fixes->probe) { - ret = chip->fixes->probe(chip); - if (ret) - goto free; - } - - 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]); - ret = PTR_ERR(slot); - goto free; - } - - chip->slots[i] = slot; - } - - if (chip->allow_runtime_pm) - sdhci_pci_runtime_pm_allow(&pdev->dev); - - return 0; - -free: - pci_set_drvdata(pdev, NULL); - kfree(chip); - -err: - pci_disable_device(pdev); - return ret; -} - -static void __devexit sdhci_pci_remove(struct pci_dev *pdev) -{ - int i; - struct sdhci_pci_chip *chip; - - chip = pci_get_drvdata(pdev); - - if (chip) { - 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]); - - pci_set_drvdata(pdev, NULL); - kfree(chip); - } - - pci_disable_device(pdev); -} - -static struct pci_driver sdhci_driver = { - .name = "sdhci-pci", - .id_table = pci_ids, - .probe = sdhci_pci_probe, - .remove = __devexit_p(sdhci_pci_remove), - .driver = { - .pm = &sdhci_pci_pm_ops - }, -}; - -/*****************************************************************************\ - * * - * Driver init/exit * - * * -\*****************************************************************************/ - -static int __init sdhci_drv_init(void) -{ - return pci_register_driver(&sdhci_driver); -} - -static void __exit sdhci_drv_exit(void) -{ - pci_unregister_driver(&sdhci_driver); -} - -module_init(sdhci_drv_init); -module_exit(sdhci_drv_exit); - -MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>"); -MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver"); -MODULE_LICENSE("GPL"); |