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MMC highlights for 3.3: 

Core:
  * Support for the HS200 high-speed eMMC mode.
  * Support SDIO 3.0 Ultra High Speed cards.
  * Kill pending block requests immediately if card is removed.
  * Enable the eMMC feature for locking boot partitions read-only
    until next power on, exposed via sysfs.
 
 Drivers:
  * Runtime PM support for Intel Medfield SDIO.
  * Suspend/resume support for sdhci-spear.
  * sh-mmcif now processes requests asynchronously.
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Merge tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

MMC highlights for 3.3:

Core:
 * Support for the HS200 high-speed eMMC mode.
 * Support SDIO 3.0 Ultra High Speed cards.
 * Kill pending block requests immediately if card is removed.
 * Enable the eMMC feature for locking boot partitions read-only
   until next power on, exposed via sysfs.

Drivers:
 * Runtime PM support for Intel Medfield SDIO.
 * Suspend/resume support for sdhci-spear.
 * sh-mmcif now processes requests asynchronously.

* tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (58 commits)
  mmc: fix a deadlock between system suspend and MMC block IO
  mmc: sdhci: restore the enabled dma when do reset all
  mmc: dw_mmc: miscaculated the fifo-depth with wrong bit operation
  mmc: host: Adds support for eMMC 4.5 HS200 mode
  mmc: core: HS200 mode support for eMMC 4.5
  mmc: dw_mmc: fixed wrong bit operation for SDMMC_GET_FCNT()
  mmc: core: Separate the timeout value for cache-ctrl
  mmc: sdhci-spear: Fix compilation error
  mmc: sdhci: Deal with failure case in sdhci_suspend_host
  mmc: dw_mmc: Clear the DDR mode for non-DDR
  mmc: sd: Fix SDR12 timing regression
  mmc: sdhci: Fix tuning timer incorrect setting when suspending host
  mmc: core: Add option to prevent eMMC sleep command
  mmc: omap_hsmmc: use threaded irq handler for card-detect.
  mmc: sdhci-pci: enable runtime PM for Medfield SDIO
  mmc: sdhci: Always pass clock request value zero to set_clock host op
  mmc: sdhci-pci: remove SDHCI_QUIRK2_OWN_CARD_DETECTION
  mmc: sdhci-pci: get gpio numbers from platform data
  mmc: sdhci-pci: add platform data
  mmc: sdhci: prevent card detection activity for non-removable cards
  ...
This commit is contained in:
Linus Torvalds 2012-01-13 20:41:15 -08:00
parent 5df1b274cd 0db13fc2ab
commit 4b8be38cf7
67 changed files with 1989 additions and 844 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Documentation/mmc/mmc-dev-attrs.txt
View File

@ -64,3 +64,13 @@ Note on Erase Size and Preferred Erase Size:
size specified by the card.
"preferred_erase_size" is in bytes.
SD/MMC/SDIO Clock Gating Attribute
==================================
Read and write access is provided to following attribute.
This attribute appears only if CONFIG_MMC_CLKGATE is enabled.
clkgate_delay Tune the clock gating delay with desired value in milliseconds.
echo <desired delay> > /sys/class/mmc_host/mmcX/clkgate_delay

13
Documentation/mmc/mmc-dev-parts.txt
View File

@ -25,3 +25,16 @@ echo 0 > /sys/block/mmcblkXbootY/force_ro
To re-enable read-only access:
echo 1 > /sys/block/mmcblkXbootY/force_ro
The boot partitions can also be locked read only until the next power on,
with:
echo 1 > /sys/block/mmcblkXbootY/ro_lock_until_next_power_on
This is a feature of the card and not of the kernel. If the card does
not support boot partition locking, the file will not exist. If the
feature has been disabled on the card, the file will be read-only.
The boot partitions can also be locked permanently, but this feature is
not accessible through sysfs in order to avoid accidental or malicious
bricking.

1
arch/arm/plat-samsung/include/plat/sdhci.h
View File

@ -63,6 +63,7 @@ enum clk_types {
struct s3c_sdhci_platdata {
unsigned int max_width;
unsigned int host_caps;
unsigned int pm_caps;
enum cd_types cd_type;
enum clk_types clk_type;

2
arch/arm/plat-samsung/platformdata.c
View File

@ -53,6 +53,8 @@ void s3c_sdhci_set_platdata(struct s3c_sdhci_platdata *pd,
set->cfg_gpio = pd->cfg_gpio;
if (pd->host_caps)
set->host_caps |= pd->host_caps;
if (pd->pm_caps)
set->pm_caps |= pd->pm_caps;
if (pd->clk_type)
set->clk_type = pd->clk_type;
}

2
drivers/Makefile
View File

@ -97,7 +97,7 @@ obj-$(CONFIG_EISA) += eisa/
obj-y += lguest/
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_CPU_IDLE) += cpuidle/
obj-$(CONFIG_MMC) += mmc/
obj-y += mmc/
obj-$(CONFIG_MEMSTICK) += memstick/
obj-y += leds/
obj-$(CONFIG_INFINIBAND) += infiniband/

3
drivers/mmc/Makefile
View File

@ -6,5 +6,4 @@ subdir-ccflags-$(CONFIG_MMC_DEBUG) := -DDEBUG
obj-$(CONFIG_MMC) += core/
obj-$(CONFIG_MMC) += card/
obj-$(CONFIG_MMC) += host/
obj-$(subst m,y,$(CONFIG_MMC)) += host/

247
drivers/mmc/card/block.c
View File

@ -107,6 +107,8 @@ struct mmc_blk_data {
*/
unsigned int part_curr;
struct device_attribute force_ro;
struct device_attribute power_ro_lock;
int area_type;
};
static DEFINE_MUTEX(open_lock);
@ -119,6 +121,7 @@ enum mmc_blk_status {
MMC_BLK_ABORT,
MMC_BLK_DATA_ERR,
MMC_BLK_ECC_ERR,
MMC_BLK_NOMEDIUM,
};
module_param(perdev_minors, int, 0444);
@ -165,6 +168,70 @@ static void mmc_blk_put(struct mmc_blk_data *md)
mutex_unlock(&open_lock);
}
static ssize_t power_ro_lock_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev));
struct mmc_card *card = md->queue.card;
int locked = 0;
if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PERM_WP_EN)
locked = 2;
else if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_EN)
locked = 1;
ret = snprintf(buf, PAGE_SIZE, "%d\n", locked);
return ret;
}
static ssize_t power_ro_lock_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int ret;
struct mmc_blk_data *md, *part_md;
struct mmc_card *card;
unsigned long set;
if (kstrtoul(buf, 0, &set))
return -EINVAL;
if (set != 1)
return count;
md = mmc_blk_get(dev_to_disk(dev));
card = md->queue.card;
mmc_claim_host(card->host);
ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP,
card->ext_csd.boot_ro_lock |
EXT_CSD_BOOT_WP_B_PWR_WP_EN,
card->ext_csd.part_time);
if (ret)
pr_err("%s: Locking boot partition ro until next power on failed: %d\n", md->disk->disk_name, ret);
else
card->ext_csd.boot_ro_lock |= EXT_CSD_BOOT_WP_B_PWR_WP_EN;
mmc_release_host(card->host);
if (!ret) {
pr_info("%s: Locking boot partition ro until next power on\n",
md->disk->disk_name);
set_disk_ro(md->disk, 1);
list_for_each_entry(part_md, &md->part, part)
if (part_md->area_type == MMC_BLK_DATA_AREA_BOOT) {
pr_info("%s: Locking boot partition ro until next power on\n", part_md->disk->disk_name);
set_disk_ro(part_md->disk, 1);
}
}
mmc_blk_put(md);
return count;
}
static ssize_t force_ro_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@ -266,6 +333,9 @@ static struct mmc_blk_ioc_data *mmc_blk_ioctl_copy_from_user(
goto idata_err;
}
if (!idata->buf_bytes)
return idata;
idata->buf = kzalloc(idata->buf_bytes, GFP_KERNEL);
if (!idata->buf) {
err = -ENOMEM;
@ -312,25 +382,6 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
if (IS_ERR(idata))
return PTR_ERR(idata);
cmd.opcode = idata->ic.opcode;
cmd.arg = idata->ic.arg;
cmd.flags = idata->ic.flags;
data.sg = &sg;
data.sg_len = 1;
data.blksz = idata->ic.blksz;
data.blocks = idata->ic.blocks;
sg_init_one(data.sg, idata->buf, idata->buf_bytes);
if (idata->ic.write_flag)
data.flags = MMC_DATA_WRITE;
else
data.flags = MMC_DATA_READ;
mrq.cmd = &cmd;
mrq.data = &data;
md = mmc_blk_get(bdev->bd_disk);
if (!md) {
err = -EINVAL;
@ -343,6 +394,48 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
goto cmd_done;
}
cmd.opcode = idata->ic.opcode;
cmd.arg = idata->ic.arg;
cmd.flags = idata->ic.flags;
if (idata->buf_bytes) {
data.sg = &sg;
data.sg_len = 1;
data.blksz = idata->ic.blksz;
data.blocks = idata->ic.blocks;
sg_init_one(data.sg, idata->buf, idata->buf_bytes);
if (idata->ic.write_flag)
data.flags = MMC_DATA_WRITE;
else
data.flags = MMC_DATA_READ;
/* data.flags must already be set before doing this. */
mmc_set_data_timeout(&data, card);
/* Allow overriding the timeout_ns for empirical tuning. */
if (idata->ic.data_timeout_ns)
data.timeout_ns = idata->ic.data_timeout_ns;
if ((cmd.flags & MMC_RSP_R1B) == MMC_RSP_R1B) {
/*
* Pretend this is a data transfer and rely on the
* host driver to compute timeout. When all host
* drivers support cmd.cmd_timeout for R1B, this
* can be changed to:
*
* mrq.data = NULL;
* cmd.cmd_timeout = idata->ic.cmd_timeout_ms;
*/
data.timeout_ns = idata->ic.cmd_timeout_ms * 1000000;
}
mrq.data = &data;
}
mrq.cmd = &cmd;
mmc_claim_host(card->host);
if (idata->ic.is_acmd) {
@ -351,24 +444,6 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
goto cmd_rel_host;
}
/* data.flags must already be set before doing this. */
mmc_set_data_timeout(&data, card);
/* Allow overriding the timeout_ns for empirical tuning. */
if (idata->ic.data_timeout_ns)
data.timeout_ns = idata->ic.data_timeout_ns;
if ((cmd.flags & MMC_RSP_R1B) == MMC_RSP_R1B) {
/*
* Pretend this is a data transfer and rely on the host driver
* to compute timeout. When all host drivers support
* cmd.cmd_timeout for R1B, this can be changed to:
*
* mrq.data = NULL;
* cmd.cmd_timeout = idata->ic.cmd_timeout_ms;
*/
data.timeout_ns = idata->ic.cmd_timeout_ms * 1000000;
}
mmc_wait_for_req(card->host, &mrq);
if (cmd.error) {
@ -565,6 +640,7 @@ static int get_card_status(struct mmc_card *card, u32 *status, int retries)
return err;
}
#define ERR_NOMEDIUM 3
#define ERR_RETRY 2
#define ERR_ABORT 1
#define ERR_CONTINUE 0
@ -632,6 +708,9 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
u32 status, stop_status = 0;
int err, retry;
if (mmc_card_removed(card))
return ERR_NOMEDIUM;
/*
* Try to get card status which indicates both the card state
* and why there was no response. If the first attempt fails,
@ -648,8 +727,12 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
}
/* We couldn't get a response from the card. Give up. */
if (err)
if (err) {
/* Check if the card is removed */
if (mmc_detect_card_removed(card->host))
return ERR_NOMEDIUM;
return ERR_ABORT;
}
/* Flag ECC errors */
if ((status & R1_CARD_ECC_FAILED) ||
@ -922,6 +1005,8 @@ static int mmc_blk_err_check(struct mmc_card *card,
return MMC_BLK_RETRY;
case ERR_ABORT:
return MMC_BLK_ABORT;
case ERR_NOMEDIUM:
return MMC_BLK_NOMEDIUM;
case ERR_CONTINUE:
break;
}
@ -1255,6 +1340,8 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
if (!ret)
goto start_new_req;
break;
case MMC_BLK_NOMEDIUM:
goto cmd_abort;
}
if (ret) {
@ -1271,6 +1358,8 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
cmd_abort:
spin_lock_irq(&md->lock);
if (mmc_card_removed(card))
req->cmd_flags |= REQ_QUIET;
while (ret)
ret = __blk_end_request(req, -EIO, blk_rq_cur_bytes(req));
spin_unlock_irq(&md->lock);
@ -1339,7 +1428,8 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
struct device *parent,
sector_t size,
bool default_ro,
const char *subname)
const char *subname,
int area_type)
{
struct mmc_blk_data *md;
int devidx, ret;
@ -1364,11 +1454,12 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
if (!subname) {
md->name_idx = find_first_zero_bit(name_use, max_devices);
__set_bit(md->name_idx, name_use);
}
else
} else
md->name_idx = ((struct mmc_blk_data *)
dev_to_disk(parent)->private_data)->name_idx;
md->area_type = area_type;
/*
* Set the read-only status based on the supported commands
* and the write protect switch.
@ -1462,7 +1553,8 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
size = card->csd.capacity << (card->csd.read_blkbits - 9);
}
md = mmc_blk_alloc_req(card, &card->dev, size, false, NULL);
md = mmc_blk_alloc_req(card, &card->dev, size, false, NULL,
MMC_BLK_DATA_AREA_MAIN);
return md;
}
@ -1471,13 +1563,14 @@ static int mmc_blk_alloc_part(struct mmc_card *card,
unsigned int part_type,
sector_t size,
bool default_ro,
const char *subname)
const char *subname,
int area_type)
{
char cap_str[10];
struct mmc_blk_data *part_md;
part_md = mmc_blk_alloc_req(card, disk_to_dev(md->disk), size, default_ro,
subname);
subname, area_type);
if (IS_ERR(part_md))
return PTR_ERR(part_md);
part_md->part_type = part_type;
@ -1510,7 +1603,8 @@ static int mmc_blk_alloc_parts(struct mmc_card *card, struct mmc_blk_data *md)
card->part[idx].part_cfg,
card->part[idx].size >> 9,
card->part[idx].force_ro,
card->part[idx].name);
card->part[idx].name,
card->part[idx].area_type);
if (ret)
return ret;
}
@ -1539,9 +1633,16 @@ mmc_blk_set_blksize(struct mmc_blk_data *md, struct mmc_card *card)
static void mmc_blk_remove_req(struct mmc_blk_data *md)
{
struct mmc_card *card;
if (md) {
card = md->queue.card;
if (md->disk->flags & GENHD_FL_UP) {
device_remove_file(disk_to_dev(md->disk), &md->force_ro);
if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
card->ext_csd.boot_ro_lockable)
device_remove_file(disk_to_dev(md->disk),
&md->power_ro_lock);
/* Stop new requests from getting into the queue */
del_gendisk(md->disk);
@ -1570,6 +1671,7 @@ static void mmc_blk_remove_parts(struct mmc_card *card,
static int mmc_add_disk(struct mmc_blk_data *md)
{
int ret;
struct mmc_card *card = md->queue.card;
add_disk(md->disk);
md->force_ro.show = force_ro_show;
@ -1579,18 +1681,53 @@ static int mmc_add_disk(struct mmc_blk_data *md)
md->force_ro.attr.mode = S_IRUGO | S_IWUSR;
ret = device_create_file(disk_to_dev(md->disk), &md->force_ro);
if (ret)
del_gendisk(md->disk);
goto force_ro_fail;
if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
card->ext_csd.boot_ro_lockable) {
mode_t mode;
if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_DIS)
mode = S_IRUGO;
else
mode = S_IRUGO | S_IWUSR;
md->power_ro_lock.show = power_ro_lock_show;
md->power_ro_lock.store = power_ro_lock_store;
md->power_ro_lock.attr.mode = mode;
md->power_ro_lock.attr.name =
"ro_lock_until_next_power_on";
ret = device_create_file(disk_to_dev(md->disk),
&md->power_ro_lock);
if (ret)
goto power_ro_lock_fail;
}
return ret;
power_ro_lock_fail:
device_remove_file(disk_to_dev(md->disk), &md->force_ro);
force_ro_fail:
del_gendisk(md->disk);
return ret;
}
#define CID_MANFID_SANDISK 0x2
#define CID_MANFID_TOSHIBA 0x11
#define CID_MANFID_MICRON 0x13
static const struct mmc_fixup blk_fixups[] =
{
MMC_FIXUP("SEM02G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM04G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM08G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM16G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM32G", 0x2, 0x100, add_quirk, MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM02G", CID_MANFID_SANDISK, 0x100, add_quirk,
MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM04G", CID_MANFID_SANDISK, 0x100, add_quirk,
MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM08G", CID_MANFID_SANDISK, 0x100, add_quirk,
MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM16G", CID_MANFID_SANDISK, 0x100, add_quirk,
MMC_QUIRK_INAND_CMD38),
MMC_FIXUP("SEM32G", CID_MANFID_SANDISK, 0x100, add_quirk,
MMC_QUIRK_INAND_CMD38),
/*
* Some MMC cards experience performance degradation with CMD23
@ -1600,18 +1737,18 @@ static const struct mmc_fixup blk_fixups[] =
*
* N.B. This doesn't affect SD cards.
*/
MMC_FIXUP("MMC08G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
MMC_FIXUP("MMC08G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
MMC_QUIRK_BLK_NO_CMD23),
MMC_FIXUP("MMC16G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
MMC_FIXUP("MMC16G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
MMC_QUIRK_BLK_NO_CMD23),
MMC_FIXUP("MMC32G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
MMC_FIXUP("MMC32G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
MMC_QUIRK_BLK_NO_CMD23),
/*
* Some Micron MMC cards needs longer data read timeout than
* indicated in CSD.
*/
MMC_FIXUP(CID_NAME_ANY, 0x13, 0x200, add_quirk_mmc,
MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc,
MMC_QUIRK_LONG_READ_TIME),
END_FIXUP

1
drivers/mmc/card/mmc_test.c
View File

@ -1581,6 +1581,7 @@ static int mmc_test_area_init(struct mmc_test_card *test, int erase, int fill)
t->max_segs = test->card->host->max_segs;
t->max_seg_sz = test->card->host->max_seg_size;
t->max_seg_sz -= t->max_seg_sz % 512;
t->max_tfr = t->max_sz;
if (t->max_tfr >> 9 > test->card->host->max_blk_count)

5
drivers/mmc/card/queue.c
View File

@ -29,6 +29,8 @@
*/
static int mmc_prep_request(struct request_queue *q, struct request *req)
{
struct mmc_queue *mq = q->queuedata;
/*
* We only like normal block requests and discards.
*/
@ -37,6 +39,9 @@ static int mmc_prep_request(struct request_queue *q, struct request *req)
return BLKPREP_KILL;
}
if (mq && mmc_card_removed(mq->card))
return BLKPREP_KILL;
req->cmd_flags |= REQ_DONTPREP;
return BLKPREP_OK;

2
drivers/mmc/core/Makefile
View File

@ -7,6 +7,6 @@ mmc_core-y := core.o bus.o host.o \
mmc.o mmc_ops.o sd.o sd_ops.o \
sdio.o sdio_ops.o sdio_bus.o \
sdio_cis.o sdio_io.o sdio_irq.o \
quirks.o
quirks.o cd-gpio.o
mmc_core-$(CONFIG_DEBUG_FS) += debugfs.o

5
drivers/mmc/core/bus.c
View File

@ -303,10 +303,11 @@ int mmc_add_card(struct mmc_card *card)
mmc_card_ddr_mode(card) ? "DDR " : "",
type);
} else {
printk(KERN_INFO "%s: new %s%s%s card at address %04x\n",
pr_info("%s: new %s%s%s%s card at address %04x\n",
mmc_hostname(card->host),
mmc_sd_card_uhs(card) ? "ultra high speed " :
mmc_card_uhs(card) ? "ultra high speed " :
(mmc_card_highspeed(card) ? "high speed " : ""),
(mmc_card_hs200(card) ? "HS200 " : ""),
mmc_card_ddr_mode(card) ? "DDR " : "",
type, card->rca);
}

74
drivers/mmc/core/cd-gpio.c Normal file
View File

@ -0,0 +1,74 @@
/*
* Generic GPIO card-detect helper
*
* Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/mmc/host.h>
#include <linux/module.h>
#include <linux/slab.h>
struct mmc_cd_gpio {
unsigned int gpio;
char label[0];
};
static irqreturn_t mmc_cd_gpio_irqt(int irq, void *dev_id)
{
/* Schedule a card detection after a debounce timeout */
mmc_detect_change(dev_id, msecs_to_jiffies(100));
return IRQ_HANDLED;
}
int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
unsigned int irq, unsigned long flags)
{
size_t len = strlen(dev_name(host->parent)) + 4;
struct mmc_cd_gpio *cd = kmalloc(sizeof(*cd) + len, GFP_KERNEL);
int ret;
if (!cd)
return -ENOMEM;
snprintf(cd->label, len, "%s cd", dev_name(host->parent));
ret = gpio_request_one(gpio, GPIOF_DIR_IN, cd->label);
if (ret < 0)
goto egpioreq;
ret = request_threaded_irq(irq, NULL, mmc_cd_gpio_irqt,
flags, cd->label, host);
if (ret < 0)
goto eirqreq;
cd->gpio = gpio;
host->hotplug.irq = irq;
host->hotplug.handler_priv = cd;
return 0;
eirqreq:
gpio_free(gpio);
egpioreq:
kfree(cd);
return ret;
}
EXPORT_SYMBOL(mmc_cd_gpio_request);
void mmc_cd_gpio_free(struct mmc_host *host)
{
struct mmc_cd_gpio *cd = host->hotplug.handler_priv;
free_irq(host->hotplug.irq, host);
gpio_free(cd->gpio);
kfree(cd);
}
EXPORT_SYMBOL(mmc_cd_gpio_free);

95
drivers/mmc/core/core.c
View File

@ -140,7 +140,7 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
cmd->retries = 0;
}
if (err && cmd->retries) {
if (err && cmd->retries && !mmc_card_removed(host->card)) {
/*
* Request starter must handle retries - see
* mmc_wait_for_req_done().
@ -247,6 +247,11 @@ static void __mmc_start_req(struct mmc_host *host, struct mmc_request *mrq)
{
init_completion(&mrq->completion);
mrq->done = mmc_wait_done;
if (mmc_card_removed(host->card)) {
mrq->cmd->error = -ENOMEDIUM;
complete(&mrq->completion);
return;
}
mmc_start_request(host, mrq);
}
@ -259,7 +264,8 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
wait_for_completion(&mrq->completion);
cmd = mrq->cmd;
if (!cmd->error || !cmd->retries)
if (!cmd->error || !cmd->retries ||
mmc_card_removed(host->card))
break;
pr_debug("%s: req failed (CMD%u): %d, retrying...\n",
@ -1456,7 +1462,7 @@ void mmc_detect_change(struct mmc_host *host, unsigned long delay)
WARN_ON(host->removed);
spin_unlock_irqrestore(&host->lock, flags);
#endif
host->detect_change = 1;
mmc_schedule_delayed_work(&host->detect, delay);
}
@ -2049,6 +2055,43 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
return -EIO;
}
int _mmc_detect_card_removed(struct mmc_host *host)
{
int ret;
if ((host->caps & MMC_CAP_NONREMOVABLE) || !host->bus_ops->alive)
return 0;
if (!host->card || mmc_card_removed(host->card))
return 1;
ret = host->bus_ops->alive(host);
if (ret) {
mmc_card_set_removed(host->card);
pr_debug("%s: card remove detected\n", mmc_hostname(host));
}
return ret;
}
int mmc_detect_card_removed(struct mmc_host *host)
{
struct mmc_card *card = host->card;
WARN_ON(!host->claimed);
/*
* The card will be considered unchanged unless we have been asked to
* detect a change or host requires polling to provide card detection.
*/
if (card && !host->detect_change && !(host->caps & MMC_CAP_NEEDS_POLL))
return mmc_card_removed(card);
host->detect_change = 0;
return _mmc_detect_card_removed(host);
}
EXPORT_SYMBOL(mmc_detect_card_removed);
void mmc_rescan(struct work_struct *work)
{
static const unsigned freqs[] = { 400000, 300000, 200000, 100000 };
@ -2069,6 +2112,8 @@ void mmc_rescan(struct work_struct *work)
&& !(host->caps & MMC_CAP_NONREMOVABLE))
host->bus_ops->detect(host);
host->detect_change = 0;
/*
* Let mmc_bus_put() free the bus/bus_ops if we've found that
* the card is no longer present.
@ -2130,6 +2175,7 @@ void mmc_stop_host(struct mmc_host *host)
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
/* Calling bus_ops->remove() with a claimed host can deadlock */
if (host->bus_ops->remove)
host->bus_ops->remove(host);
@ -2201,6 +2247,9 @@ int mmc_card_awake(struct mmc_host *host)
{
int err = -ENOSYS;
if (host->caps2 & MMC_CAP2_NO_SLEEP_CMD)
return 0;
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead && host->bus_ops->awake)
@ -2216,6 +2265,9 @@ int mmc_card_sleep(struct mmc_host *host)
{
int err = -ENOSYS;
if (host->caps2 & MMC_CAP2_NO_SLEEP_CMD)
return 0;
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead && host->bus_ops->sleep)
@ -2270,6 +2322,7 @@ EXPORT_SYMBOL(mmc_flush_cache);
int mmc_cache_ctrl(struct mmc_host *host, u8 enable)
{
struct mmc_card *card = host->card;
unsigned int timeout;
int err = 0;
if (!(host->caps2 & MMC_CAP2_CACHE_CTRL) ||
@ -2280,16 +2333,18 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable)
(card->ext_csd.cache_size > 0)) {
enable = !!enable;
if (card->ext_csd.cache_ctrl ^ enable)
if (card->ext_csd.cache_ctrl ^ enable) {
timeout = enable ? card->ext_csd.generic_cmd6_time : 0;
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_CACHE_CTRL, enable, 0);
if (err)
pr_err("%s: cache %s error %d\n",
mmc_hostname(card->host),
enable ? "on" : "off",
err);
else
card->ext_csd.cache_ctrl = enable;
EXT_CSD_CACHE_CTRL, enable, timeout);
if (err)
pr_err("%s: cache %s error %d\n",
mmc_hostname(card->host),
enable ? "on" : "off",
err);
else
card->ext_csd.cache_ctrl = enable;
}
}
return err;
@ -2310,7 +2365,13 @@ int mmc_suspend_host(struct mmc_host *host)
cancel_delayed_work(&host->disable);
cancel_delayed_work(&host->detect);
mmc_flush_scheduled_work();
err = mmc_cache_ctrl(host, 0);
if (mmc_try_claim_host(host)) {
err = mmc_cache_ctrl(host, 0);
mmc_do_release_host(host);
} else {
err = -EBUSY;
}
if (err)
goto out;
@ -2338,7 +2399,9 @@ int mmc_suspend_host(struct mmc_host *host)
if (err == -ENOSYS || !host->bus_ops->resume) {
/*
* We simply "remove" the card in this case.
* It will be redetected on resume.
* It will be redetected on resume. (Calling
* bus_ops->remove() with a claimed host can
* deadlock.)
*/
if (host->bus_ops->remove)
host->bus_ops->remove(host);
@ -2431,11 +2494,11 @@ int mmc_pm_notify(struct notifier_block *notify_block,
if (!host->bus_ops || host->bus_ops->suspend)
break;
mmc_claim_host(host);
/* Calling bus_ops->remove() with a claimed host can deadlock */
if (host->bus_ops->remove)
host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_power_off(host);
mmc_release_host(host);

3
drivers/mmc/core/core.h
View File

@ -24,6 +24,7 @@ struct mmc_bus_ops {
int (*resume)(struct mmc_host *);
int (*power_save)(struct mmc_host *);
int (*power_restore)(struct mmc_host *);
int (*alive)(struct mmc_host *);
};
void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
@ -59,6 +60,8 @@ void mmc_rescan(struct work_struct *work);
void mmc_start_host(struct mmc_host *host);
void mmc_stop_host(struct mmc_host *host);
int _mmc_detect_card_removed(struct mmc_host *host);
int mmc_attach_mmc(struct mmc_host *host);
int mmc_attach_sd(struct mmc_host *host);
int mmc_attach_sdio(struct mmc_host *host);

5
drivers/mmc/core/debugfs.c
View File

@ -57,6 +57,8 @@ static int mmc_ios_show(struct seq_file *s, void *data)
const char *str;
seq_printf(s, "clock:\t\t%u Hz\n", ios->clock);
if (host->actual_clock)
seq_printf(s, "actual clock:\t%u Hz\n", host->actual_clock);
seq_printf(s, "vdd:\t\t%u ", ios->vdd);
if ((1 << ios->vdd) & MMC_VDD_165_195)
seq_printf(s, "(1.65 - 1.95 V)\n");
@ -133,6 +135,9 @@ static int mmc_ios_show(struct seq_file *s, void *data)
case MMC_TIMING_UHS_DDR50:
str = "sd uhs DDR50";
break;
case MMC_TIMING_MMC_HS200:
str = "mmc high-speed SDR200";
break;
default:
str = "invalid";
break;

53
drivers/mmc/core/host.c
View File

@ -54,6 +54,27 @@ static DEFINE_IDR(mmc_host_idr);
static DEFINE_SPINLOCK(mmc_host_lock);
#ifdef CONFIG_MMC_CLKGATE
static ssize_t clkgate_delay_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct mmc_host *host = cls_dev_to_mmc_host(dev);
return snprintf(buf, PAGE_SIZE, "%lu\n", host->clkgate_delay);
}
static ssize_t clkgate_delay_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct mmc_host *host = cls_dev_to_mmc_host(dev);
unsigned long flags, value;
if (kstrtoul(buf, 0, &value))
return -EINVAL;
spin_lock_irqsave(&host->clk_lock, flags);
host->clkgate_delay = value;
spin_unlock_irqrestore(&host->clk_lock, flags);
return count;
}
/*
* Enabling clock gating will make the core call out to the host
@ -114,7 +135,7 @@ static void mmc_host_clk_gate_delayed(struct mmc_host *host)
static void mmc_host_clk_gate_work(struct work_struct *work)
{
struct mmc_host *host = container_of(work, struct mmc_host,
clk_gate_work);
clk_gate_work.work);
mmc_host_clk_gate_delayed(host);
}
@ -131,6 +152,8 @@ void mmc_host_clk_hold(struct mmc_host *host)
{
unsigned long flags;
/* cancel any clock gating work scheduled by mmc_host_clk_release() */
cancel_delayed_work_sync(&host->clk_gate_work);
mutex_lock(&host->clk_gate_mutex);
spin_lock_irqsave(&host->clk_lock, flags);
if (host->clk_gated) {
@ -180,7 +203,8 @@ void mmc_host_clk_release(struct mmc_host *host)
host->clk_requests--;
if (mmc_host_may_gate_card(host->card) &&
!host->clk_requests)
queue_work(system_nrt_wq, &host->clk_gate_work);
queue_delayed_work(system_nrt_wq, &host->clk_gate_work,
msecs_to_jiffies(host->clkgate_delay));
spin_unlock_irqrestore(&host->clk_lock, flags);
}
@ -213,8 +237,13 @@ static inline void mmc_host_clk_init(struct mmc_host *host)
host->clk_requests = 0;
/* Hold MCI clock for 8 cycles by default */
host->clk_delay = 8;
/*
* Default clock gating delay is 200ms.
* This value can be tuned by writing into sysfs entry.
*/
host->clkgate_delay = 200;
host->clk_gated = false;
INIT_WORK(&host->clk_gate_work, mmc_host_clk_gate_work);
INIT_DELAYED_WORK(&host->clk_gate_work, mmc_host_clk_gate_work);
spin_lock_init(&host->clk_lock);
mutex_init(&host->clk_gate_mutex);
}
@ -229,7 +258,7 @@ static inline void mmc_host_clk_exit(struct mmc_host *host)
* Wait for any outstanding gate and then make sure we're
* ungated before exiting.
*/
if (cancel_work_sync(&host->clk_gate_work))
if (cancel_delayed_work_sync(&host->clk_gate_work))
mmc_host_clk_gate_delayed(host);
if (host->clk_gated)
mmc_host_clk_hold(host);
@ -237,6 +266,17 @@ static inline void mmc_host_clk_exit(struct mmc_host *host)
WARN_ON(host->clk_requests > 1);
}
static inline void mmc_host_clk_sysfs_init(struct mmc_host *host)
{
host->clkgate_delay_attr.show = clkgate_delay_show;
host->clkgate_delay_attr.store = clkgate_delay_store;
sysfs_attr_init(&host->clkgate_delay_attr.attr);
host->clkgate_delay_attr.attr.name = "clkgate_delay";
host->clkgate_delay_attr.attr.mode = S_IRUGO | S_IWUSR;
if (device_create_file(&host->class_dev, &host->clkgate_delay_attr))
pr_err("%s: Failed to create clkgate_delay sysfs entry\n",
mmc_hostname(host));
}
#else
static inline void mmc_host_clk_init(struct mmc_host *host)
@ -247,6 +287,10 @@ static inline void mmc_host_clk_exit(struct mmc_host *host)
{
}
static inline void mmc_host_clk_sysfs_init(struct mmc_host *host)
{
}
#endif
/**
@ -335,6 +379,7 @@ int mmc_add_host(struct mmc_host *host)
#ifdef CONFIG_DEBUG_FS
mmc_add_host_debugfs(host);
#endif
mmc_host_clk_sysfs_init(host);
mmc_start_host(host);
register_pm_notifier(&host->pm_notify);

203
drivers/mmc/core/mmc.c
View File

@ -286,6 +286,27 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
}
card->ext_csd.raw_card_type = ext_csd[EXT_CSD_CARD_TYPE];
switch (ext_csd[EXT_CSD_CARD_TYPE] & EXT_CSD_CARD_TYPE_MASK) {
case EXT_CSD_CARD_TYPE_SDR_ALL:
case EXT_CSD_CARD_TYPE_SDR_ALL_DDR_1_8V:
case EXT_CSD_CARD_TYPE_SDR_ALL_DDR_1_2V:
case EXT_CSD_CARD_TYPE_SDR_ALL_DDR_52:
card->ext_csd.hs_max_dtr = 200000000;
card->ext_csd.card_type = EXT_CSD_CARD_TYPE_SDR_200;
break;
case EXT_CSD_CARD_TYPE_SDR_1_2V_ALL:
case EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_1_8V:
case EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_1_2V:
case EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_52:
card->ext_csd.hs_max_dtr = 200000000;
card->ext_csd.card_type = EXT_CSD_CARD_TYPE_SDR_1_2V;
break;
case EXT_CSD_CARD_TYPE_SDR_1_8V_ALL:
case EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_1_8V:
case EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_1_2V:
case EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_52:
card->ext_csd.hs_max_dtr = 200000000;
card->ext_csd.card_type = EXT_CSD_CARD_TYPE_SDR_1_8V;
break;
case EXT_CSD_CARD_TYPE_DDR_52 | EXT_CSD_CARD_TYPE_52 |
EXT_CSD_CARD_TYPE_26:
card->ext_csd.hs_max_dtr = 52000000;
@ -348,7 +369,8 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
part_size = ext_csd[EXT_CSD_BOOT_MULT] << 17;
mmc_part_add(card, part_size,
EXT_CSD_PART_CONFIG_ACC_BOOT0 + idx,
"boot%d", idx, true);
"boot%d", idx, true,
MMC_BLK_DATA_AREA_BOOT);
}
}
}
@ -435,7 +457,8 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
hc_wp_grp_sz);
mmc_part_add(card, part_size << 19,
EXT_CSD_PART_CONFIG_ACC_GP0 + idx,
"gp%d", idx, false);
"gp%d", idx, false,
MMC_BLK_DATA_AREA_GP);
}
}
card->ext_csd.sec_trim_mult =
@ -446,6 +469,14 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT];
card->ext_csd.trim_timeout = 300 *
ext_csd[EXT_CSD_TRIM_MULT];
/*
* Note that the call to mmc_part_add above defaults to read
* only. If this default assumption is changed, the call must
* take into account the value of boot_locked below.
*/
card->ext_csd.boot_ro_lock = ext_csd[EXT_CSD_BOOT_WP];
card->ext_csd.boot_ro_lockable = true;
}
if (card->ext_csd.rev >= 5) {
@ -689,6 +720,79 @@ static int mmc_select_powerclass(struct mmc_card *card,
return err;
}
/*
* Selects the desired buswidth and switch to the HS200 mode
* if bus width set without error
*/
static int mmc_select_hs200(struct mmc_card *card)
{
int idx, err = 0;
struct mmc_host *host;
static unsigned ext_csd_bits[] = {
EXT_CSD_BUS_WIDTH_4,
EXT_CSD_BUS_WIDTH_8,
};
static unsigned bus_widths[] = {
MMC_BUS_WIDTH_4,
MMC_BUS_WIDTH_8,
};
BUG_ON(!card);
host = card->host;
if (card->ext_csd.card_type & EXT_CSD_CARD_TYPE_SDR_1_2V &&
host->caps2 & MMC_CAP2_HS200_1_2V_SDR)
if (mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120, 0))
err = mmc_set_signal_voltage(host,
MMC_SIGNAL_VOLTAGE_180, 0);
/* If fails try again during next card power cycle */
if (err)
goto err;
idx = (host->caps & MMC_CAP_8_BIT_DATA) ? 1 : 0;
/*
* Unlike SD, MMC cards dont have a configuration register to notify
* supported bus width. So bus test command should be run to identify
* the supported bus width or compare the ext csd values of current
* bus width and ext csd values of 1 bit mode read earlier.
*/
for (; idx >= 0; idx--) {
/*
* Host is capable of 8bit transfer, then switch
* the device to work in 8bit transfer mode. If the
* mmc switch command returns error then switch to
* 4bit transfer mode. On success set the corresponding
* bus width on the host.
*/
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BUS_WIDTH,
ext_csd_bits[idx],
card->ext_csd.generic_cmd6_time);
if (err)
continue;
mmc_set_bus_width(card->host, bus_widths[idx]);
if (!(host->caps & MMC_CAP_BUS_WIDTH_TEST))
err = mmc_compare_ext_csds(card, bus_widths[idx]);
else
err = mmc_bus_test(card, bus_widths[idx]);
if (!err)
break;
}
/* switch to HS200 mode if bus width set successfully */
if (!err)
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, 2, 0);
err:
return err;
}
/*
* Handle the detection and initialisation of a card.
*
@ -895,11 +999,15 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
/*
* Activate high speed (if supported)
*/
if ((card->ext_csd.hs_max_dtr != 0) &&
(host->caps & MMC_CAP_MMC_HIGHSPEED)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, 1,
card->ext_csd.generic_cmd6_time);
if (card->ext_csd.hs_max_dtr != 0) {
err = 0;
if (card->ext_csd.hs_max_dtr > 52000000 &&
host->caps2 & MMC_CAP2_HS200)
err = mmc_select_hs200(card);
else if (host->caps & MMC_CAP_MMC_HIGHSPEED)
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, 1, 0);
if (err && err != -EBADMSG)
goto free_card;
@ -908,8 +1016,15 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
mmc_hostname(card->host));
err = 0;
} else {
mmc_card_set_highspeed(card);
mmc_set_timing(card->host, MMC_TIMING_MMC_HS);
if (card->ext_csd.hs_max_dtr > 52000000 &&
host->caps2 & MMC_CAP2_HS200) {
mmc_card_set_hs200(card);
mmc_set_timing(card->host,
MMC_TIMING_MMC_HS200);
} else {
mmc_card_set_highspeed(card);
mmc_set_timing(card->host, MMC_TIMING_MMC_HS);
}
}
}
@ -934,7 +1049,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
*/
max_dtr = (unsigned int)-1;
if (mmc_card_highspeed(card)) {
if (mmc_card_highspeed(card) || mmc_card_hs200(card)) {
if (max_dtr > card->ext_csd.hs_max_dtr)
max_dtr = card->ext_csd.hs_max_dtr;
} else if (max_dtr > card->csd.max_dtr) {
@ -959,10 +1074,49 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
ddr = MMC_1_2V_DDR_MODE;
}
/*
* Indicate HS200 SDR mode (if supported).
*/
if (mmc_card_hs200(card)) {
u32 ext_csd_bits;
u32 bus_width = card->host->ios.bus_width;
/*
* For devices supporting HS200 mode, the bus width has
* to be set before executing the tuning function. If
* set before tuning, then device will respond with CRC
* errors for responses on CMD line. So for HS200 the
* sequence will be
* 1. set bus width 4bit / 8 bit (1 bit not supported)
* 2. switch to HS200 mode
* 3. set the clock to > 52Mhz <=200MHz and
* 4. execute tuning for HS200
*/
if ((host->caps2 & MMC_CAP2_HS200) &&
card->host->ops->execute_tuning)
err = card->host->ops->execute_tuning(card->host,
MMC_SEND_TUNING_BLOCK_HS200);
if (err) {
pr_warning("%s: tuning execution failed\n",
mmc_hostname(card->host));
goto err;
}
ext_csd_bits = (bus_width == MMC_BUS_WIDTH_8) ?
EXT_CSD_BUS_WIDTH_8 : EXT_CSD_BUS_WIDTH_4;
err = mmc_select_powerclass(card, ext_csd_bits, ext_csd);
if (err) {
pr_err("%s: power class selection to bus width %d failed\n",
mmc_hostname(card->host), 1 << bus_width);
goto err;
}
}
/*
* Activate wide bus and DDR (if supported).
*/
if ((card->csd.mmca_vsn >= CSD_SPEC_VER_4) &&
if (!mmc_card_hs200(card) &&
(card->csd.mmca_vsn >= CSD_SPEC_VER_3) &&
(host->caps & (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA))) {
static unsigned ext_csd_bits[][2] = {
{ EXT_CSD_BUS_WIDTH_8, EXT_CSD_DDR_BUS_WIDTH_8 },
@ -1048,7 +1202,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
*
* WARNING: eMMC rules are NOT the same as SD DDR
*/
if (ddr == EXT_CSD_CARD_TYPE_DDR_1_2V) {
if (ddr == MMC_1_2V_DDR_MODE) {
err = mmc_set_signal_voltage(host,
MMC_SIGNAL_VOLTAGE_120, 0);
if (err)
@ -1067,14 +1221,23 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if ((host->caps2 & MMC_CAP2_CACHE_CTRL) &&
card->ext_csd.cache_size > 0) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_CACHE_CTRL, 1, 0);
EXT_CSD_CACHE_CTRL, 1,
card->ext_csd.generic_cmd6_time);
if (err && err != -EBADMSG)
goto free_card;
/*
* Only if no error, cache is turned on successfully.
*/
card->ext_csd.cache_ctrl = err ? 0 : 1;
if (err) {
pr_warning("%s: Cache is supported, "
"but failed to turn on (%d)\n",
mmc_hostname(card->host), err);
card->ext_csd.cache_ctrl = 0;
err = 0;
} else {
card->ext_csd.cache_ctrl = 1;
}
}
if (!oldcard)
@ -1104,6 +1267,14 @@ static void mmc_remove(struct mmc_host *host)
host->card = NULL;
}
/*
* Card detection - card is alive.
*/
static int mmc_alive(struct mmc_host *host)
{
return mmc_send_status(host->card, NULL);
}
/*
* Card detection callback from host.
*/
@ -1119,7 +1290,7 @@ static void mmc_detect(struct mmc_host *host)
/*
* Just check if our card has been removed.
*/
err = mmc_send_status(host->card, NULL);
err = _mmc_detect_card_removed(host);
mmc_release_host(host);
@ -1224,6 +1395,7 @@ static const struct mmc_bus_ops mmc_ops = {
.suspend = NULL,
.resume = NULL,
.power_restore = mmc_power_restore,
.alive = mmc_alive,
};
static const struct mmc_bus_ops mmc_ops_unsafe = {
@ -1234,6 +1406,7 @@ static const struct mmc_bus_ops mmc_ops_unsafe = {
.suspend = mmc_suspend,
.resume = mmc_resume,
.power_restore = mmc_power_restore,
.alive = mmc_alive,
};
static void mmc_attach_bus_ops(struct mmc_host *host)

21
drivers/mmc/core/sd.c
View File

@ -307,8 +307,8 @@ static int mmc_read_switch(struct mmc_card *card)
goto out;
}
if (status[13] & UHS_SDR50_BUS_SPEED)
card->sw_caps.hs_max_dtr = 50000000;
if (status[13] & SD_MODE_HIGH_SPEED)
card->sw_caps.hs_max_dtr = HIGH_SPEED_MAX_DTR;
if (card->scr.sda_spec3) {
card->sw_caps.sd3_bus_mode = status[13];
@ -661,7 +661,8 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
/* SPI mode doesn't define CMD19 */
if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning)
err = card->host->ops->execute_tuning(card->host);
err = card->host->ops->execute_tuning(card->host,
MMC_SEND_TUNING_BLOCK);
out:
kfree(status);
@ -960,7 +961,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
goto free_card;
/* Card is an ultra-high-speed card */
mmc_sd_card_set_uhs(card);
mmc_card_set_uhs(card);
/*
* Since initialization is now complete, enable preset
@ -1018,6 +1019,14 @@ static void mmc_sd_remove(struct mmc_host *host)
host->card = NULL;
}
/*
* Card detection - card is alive.
*/
static int mmc_sd_alive(struct mmc_host *host)
{
return mmc_send_status(host->card, NULL);
}
/*
* Card detection callback from host.
*/
@ -1033,7 +1042,7 @@ static void mmc_sd_detect(struct mmc_host *host)
/*
* Just check if our card has been removed.
*/
err = mmc_send_status(host->card, NULL);
err = _mmc_detect_card_removed(host);
mmc_release_host(host);
@ -1102,6 +1111,7 @@ static const struct mmc_bus_ops mmc_sd_ops = {
.suspend = NULL,
.resume = NULL,
.power_restore = mmc_sd_power_restore,
.alive = mmc_sd_alive,
};
static const struct mmc_bus_ops mmc_sd_ops_unsafe = {
@ -1110,6 +1120,7 @@ static const struct mmc_bus_ops mmc_sd_ops_unsafe = {
.suspend = mmc_sd_suspend,
.resume = mmc_sd_resume,
.power_restore = mmc_sd_power_restore,
.alive = mmc_sd_alive,
};
static void mmc_sd_attach_bus_ops(struct mmc_host *host)

342
drivers/mmc/core/sdio.c
View File

@ -14,6 +14,7 @@
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
@ -102,6 +103,7 @@ static int sdio_read_cccr(struct mmc_card *card)
int ret;
int cccr_vsn;
unsigned char data;
unsigned char speed;
memset(&card->cccr, 0, sizeof(struct sdio_cccr));
@ -140,12 +142,60 @@ static int sdio_read_cccr(struct mmc_card *card)
}
if (cccr_vsn >= SDIO_CCCR_REV_1_20) {
ret = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_SPEED, 0, &data);
ret = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_SPEED, 0, &speed);
if (ret)
goto out;
if (data & SDIO_SPEED_SHS)
card->cccr.high_speed = 1;
card->scr.sda_spec3 = 0;
card->sw_caps.sd3_bus_mode = 0;
card->sw_caps.sd3_drv_type = 0;
if (cccr_vsn >= SDIO_CCCR_REV_3_00) {
card->scr.sda_spec3 = 1;
ret = mmc_io_rw_direct(card, 0, 0,
SDIO_CCCR_UHS, 0, &data);
if (ret)
goto out;
if (card->host->caps &
(MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 |
MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 |
MMC_CAP_UHS_DDR50)) {
if (data & SDIO_UHS_DDR50)
card->sw_caps.sd3_bus_mode
|= SD_MODE_UHS_DDR50;
if (data & SDIO_UHS_SDR50)
card->sw_caps.sd3_bus_mode
|= SD_MODE_UHS_SDR50;
if (data & SDIO_UHS_SDR104)
card->sw_caps.sd3_bus_mode
|= SD_MODE_UHS_SDR104;
}
ret = mmc_io_rw_direct(card, 0, 0,
SDIO_CCCR_DRIVE_STRENGTH, 0, &data);
if (ret)
goto out;
if (data & SDIO_DRIVE_SDTA)
card->sw_caps.sd3_drv_type |= SD_DRIVER_TYPE_A;
if (data & SDIO_DRIVE_SDTC)
card->sw_caps.sd3_drv_type |= SD_DRIVER_TYPE_C;
if (data & SDIO_DRIVE_SDTD)
card->sw_caps.sd3_drv_type |= SD_DRIVER_TYPE_D;
}
/* if no uhs mode ensure we check for high speed */
if (!card->sw_caps.sd3_bus_mode) {
if (speed & SDIO_SPEED_SHS) {
card->cccr.high_speed = 1;
card->sw_caps.hs_max_dtr = 50000000;
} else {
card->cccr.high_speed = 0;
card->sw_caps.hs_max_dtr = 25000000;
}
}
}
out:
@ -327,6 +377,194 @@ static unsigned mmc_sdio_get_max_clock(struct mmc_card *card)
return max_dtr;
}
static unsigned char host_drive_to_sdio_drive(int host_strength)
{
switch (host_strength) {
case MMC_SET_DRIVER_TYPE_A:
return SDIO_DTSx_SET_TYPE_A;
case MMC_SET_DRIVER_TYPE_B:
return SDIO_DTSx_SET_TYPE_B;
case MMC_SET_DRIVER_TYPE_C:
return SDIO_DTSx_SET_TYPE_C;
case MMC_SET_DRIVER_TYPE_D:
return SDIO_DTSx_SET_TYPE_D;
default:
return SDIO_DTSx_SET_TYPE_B;
}
}
static void sdio_select_driver_type(struct mmc_card *card)
{
int host_drv_type = SD_DRIVER_TYPE_B;
int card_drv_type = SD_DRIVER_TYPE_B;
int drive_strength;
unsigned char card_strength;
int err;
/*
* If the host doesn't support any of the Driver Types A,C or D,
* or there is no board specific handler then default Driver
* Type B is used.
*/
if (!(card->host->caps &
(MMC_CAP_DRIVER_TYPE_A |
MMC_CAP_DRIVER_TYPE_C |
MMC_CAP_DRIVER_TYPE_D)))
return;
if (!card->host->ops->select_drive_strength)
return;
if (card->host->caps & MMC_CAP_DRIVER_TYPE_A)
host_drv_type |= SD_DRIVER_TYPE_A;
if (card->host->caps & MMC_CAP_DRIVER_TYPE_C)
host_drv_type |= SD_DRIVER_TYPE_C;
if (card->host->caps & MMC_CAP_DRIVER_TYPE_D)
host_drv_type |= SD_DRIVER_TYPE_D;
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_A)
card_drv_type |= SD_DRIVER_TYPE_A;
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_C)
card_drv_type |= SD_DRIVER_TYPE_C;
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_D)
card_drv_type |= SD_DRIVER_TYPE_D;
/*
* The drive strength that the hardware can support
* depends on the board design. Pass the appropriate
* information and let the hardware specific code
* return what is possible given the options
*/
drive_strength = card->host->ops->select_drive_strength(
card->sw_caps.uhs_max_dtr,
host_drv_type, card_drv_type);
/* if error just use default for drive strength B */
err = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_DRIVE_STRENGTH, 0,
&card_strength);
if (err)
return;
card_strength &= ~(SDIO_DRIVE_DTSx_MASK<<SDIO_DRIVE_DTSx_SHIFT);
card_strength |= host_drive_to_sdio_drive(drive_strength);
err = mmc_io_rw_direct(card, 1, 0, SDIO_CCCR_DRIVE_STRENGTH,
card_strength, NULL);
/* if error default to drive strength B */
if (!err)
mmc_set_driver_type(card->host, drive_strength);
}
static int sdio_set_bus_speed_mode(struct mmc_card *card)
{
unsigned int bus_speed, timing;
int err;
unsigned char speed;
/*
* If the host doesn't support any of the UHS-I modes, fallback on
* default speed.
*/
if (!(card->host->caps & (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 |
MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | MMC_CAP_UHS_DDR50)))
return 0;
bus_speed = SDIO_SPEED_SDR12;
timing = MMC_TIMING_UHS_SDR12;
if ((card->host->caps & MMC_CAP_UHS_SDR104) &&
(card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR104)) {
bus_speed = SDIO_SPEED_SDR104;
timing = MMC_TIMING_UHS_SDR104;
card->sw_caps.uhs_max_dtr = UHS_SDR104_MAX_DTR;
} else if ((card->host->caps & MMC_CAP_UHS_DDR50) &&
(card->sw_caps.sd3_bus_mode & SD_MODE_UHS_DDR50)) {
bus_speed = SDIO_SPEED_DDR50;
timing = MMC_TIMING_UHS_DDR50;
card->sw_caps.uhs_max_dtr = UHS_DDR50_MAX_DTR;
} else if ((card->host->caps & (MMC_CAP_UHS_SDR104 |
MMC_CAP_UHS_SDR50)) && (card->sw_caps.sd3_bus_mode &
SD_MODE_UHS_SDR50)) {
bus_speed = SDIO_SPEED_SDR50;
timing = MMC_TIMING_UHS_SDR50;
card->sw_caps.uhs_max_dtr = UHS_SDR50_MAX_DTR;
} else if ((card->host->caps & (MMC_CAP_UHS_SDR104 |
MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR25)) &&
(card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR25)) {
bus_speed = SDIO_SPEED_SDR25;
timing = MMC_TIMING_UHS_SDR25;
card->sw_caps.uhs_max_dtr = UHS_SDR25_MAX_DTR;
} else if ((card->host->caps & (MMC_CAP_UHS_SDR104 |
MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR25 |
MMC_CAP_UHS_SDR12)) && (card->sw_caps.sd3_bus_mode &
SD_MODE_UHS_SDR12)) {
bus_speed = SDIO_SPEED_SDR12;
timing = MMC_TIMING_UHS_SDR12;
card->sw_caps.uhs_max_dtr = UHS_SDR12_MAX_DTR;
}
err = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_SPEED, 0, &speed);
if (err)
return err;
speed &= ~SDIO_SPEED_BSS_MASK;
speed |= bus_speed;
err = mmc_io_rw_direct(card, 1, 0, SDIO_CCCR_SPEED, speed, NULL);
if (err)
return err;
if (bus_speed) {
mmc_set_timing(card->host, timing);
mmc_set_clock(card->host, card->sw_caps.uhs_max_dtr);
}
return 0;
}
/*
* UHS-I specific initialization procedure
*/
static int mmc_sdio_init_uhs_card(struct mmc_card *card)
{
int err;
if (!card->scr.sda_spec3)
return 0;
/*
* Switch to wider bus (if supported).
*/
if (card->host->caps & MMC_CAP_4_BIT_DATA) {
err = sdio_enable_4bit_bus(card);
if (err > 0) {
mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
err = 0;
}
}
/* Set the driver strength for the card */
sdio_select_driver_type(card);
/* Set bus speed mode of the card */
err = sdio_set_bus_speed_mode(card);
if (err)
goto out;
/* Initialize and start re-tuning timer */
if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning)
err = card->host->ops->execute_tuning(card->host,
MMC_SEND_TUNING_BLOCK);
out:
return err;
}
/*
* Handle the detection and initialisation of a card.
*
@ -393,6 +631,30 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
if (host->ops->init_card)
host->ops->init_card(host, card);
/*
* If the host and card support UHS-I mode request the card
* to switch to 1.8V signaling level. No 1.8v signalling if
* UHS mode is not enabled to maintain compatibilty and some
* systems that claim 1.8v signalling in fact do not support
* it.
*/
if ((ocr & R4_18V_PRESENT) &&
(host->caps &
(MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 |
MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 |
MMC_CAP_UHS_DDR50))) {
err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
true);
if (err) {
ocr &= ~R4_18V_PRESENT;
host->ocr &= ~R4_18V_PRESENT;
}
err = 0;
} else {
ocr &= ~R4_18V_PRESENT;
host->ocr &= ~R4_18V_PRESENT;
}
/*
* For native busses: set card RCA and quit open drain mode.
*/
@ -492,29 +754,39 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
if (err)
goto remove;
/*
* Switch to high-speed (if supported).
*/
err = sdio_enable_hs(card);
if (err > 0)
mmc_sd_go_highspeed(card);
else if (err)
goto remove;
/* Initialization sequence for UHS-I cards */
/* Only if card supports 1.8v and UHS signaling */
if ((ocr & R4_18V_PRESENT) && card->sw_caps.sd3_bus_mode) {
err = mmc_sdio_init_uhs_card(card);
if (err)
goto remove;
/*
* Change to the card's maximum speed.
*/
mmc_set_clock(host, mmc_sdio_get_max_clock(card));
/* Card is an ultra-high-speed card */
mmc_card_set_uhs(card);
} else {
/*
* Switch to high-speed (if supported).
*/
err = sdio_enable_hs(card);
if (err > 0)
mmc_sd_go_highspeed(card);
else if (err)
goto remove;
/*
* Switch to wider bus (if supported).
*/
err = sdio_enable_4bit_bus(card);
if (err > 0)
mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
else if (err)
goto remove;
/*
* Change to the card's maximum speed.
*/
mmc_set_clock(host, mmc_sdio_get_max_clock(card));
/*
* Switch to wider bus (if supported).
*/
err = sdio_enable_4bit_bus(card);
if (err > 0)
mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
else if (err)
goto remove;
}
finish:
if (!oldcard)
host->card = card;
@ -549,6 +821,14 @@ static void mmc_sdio_remove(struct mmc_host *host)
host->card = NULL;
}
/*
* Card detection - card is alive.
*/
static int mmc_sdio_alive(struct mmc_host *host)
{
return mmc_select_card(host->card);
}
/*
* Card detection callback from host.
*/
@ -571,7 +851,7 @@ static void mmc_sdio_detect(struct mmc_host *host)
/*
* Just check if our card has been removed.
*/
err = mmc_select_card(host->card);
err = _mmc_detect_card_removed(host);
mmc_release_host(host);
@ -749,6 +1029,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = {
.suspend = mmc_sdio_suspend,
.resume = mmc_sdio_resume,
.power_restore = mmc_sdio_power_restore,
.alive = mmc_sdio_alive,
};
@ -797,8 +1078,17 @@ int mmc_attach_sdio(struct mmc_host *host)
* Detect and init the card.
*/
err = mmc_sdio_init_card(host, host->ocr, NULL, 0);
if (err)
goto err;
if (err) {
if (err == -EAGAIN) {
/*
* Retry initialization with S18R set to 0.
*/
host->ocr &= ~R4_18V_PRESENT;
err = mmc_sdio_init_card(host, host->ocr, NULL, 0);
}
if (err)
goto err;
}
card = host->card;
/*

8
drivers/mmc/core/sdio_io.c
View File

@ -196,6 +196,9 @@ static inline unsigned int sdio_max_byte_size(struct sdio_func *func)
else
mval = min(mval, func->max_blksize);
if (mmc_card_broken_byte_mode_512(func->card))
return min(mval, 511u);
return min(mval, 512u); /* maximum size for byte mode */
}
@ -314,7 +317,7 @@ static int sdio_io_rw_ext_helper(struct sdio_func *func, int write,
func->card->host->max_seg_size / func->cur_blksize);
max_blocks = min(max_blocks, 511u);
while (remainder > func->cur_blksize) {
while (remainder >= func->cur_blksize) {
unsigned blocks;
blocks = remainder / func->cur_blksize;
@ -339,8 +342,9 @@ static int sdio_io_rw_ext_helper(struct sdio_func *func, int write,
while (remainder > 0) {
size = min(remainder, sdio_max_byte_size(func));
/* Indicate byte mode by setting "blocks" = 0 */
ret = mmc_io_rw_extended(func->card, write, func->num, addr,
incr_addr, buf, 1, size);
incr_addr, buf, 0, size);
if (ret)
return ret;

14
drivers/mmc/core/sdio_ops.c
View File

@ -128,8 +128,6 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
BUG_ON(!card);
BUG_ON(fn > 7);
BUG_ON(blocks == 1 && blksz > 512);
WARN_ON(blocks == 0);
WARN_ON(blksz == 0);
/* sanity check */
@ -144,22 +142,20 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
cmd.arg |= fn << 28;
cmd.arg |= incr_addr ? 0x04000000 : 0x00000000;
cmd.arg |= addr << 9;
if (blocks == 1 && blksz < 512)
cmd.arg |= blksz; /* byte mode */
else if (blocks == 1 && blksz == 512 &&
!(mmc_card_broken_byte_mode_512(card)))
cmd.arg |= 0; /* byte mode, 0==512 */
if (blocks == 0)
cmd.arg |= (blksz == 512) ? 0 : blksz; /* byte mode */
else
cmd.arg |= 0x08000000 | blocks; /* block mode */
cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC;
data.blksz = blksz;
data.blocks = blocks;
/* Code in host drivers/fwk assumes that "blocks" always is >=1 */
data.blocks = blocks ? blocks : 1;
data.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
data.sg = &sg;
data.sg_len = 1;
sg_init_one(&sg, buf, blksz * blocks);
sg_init_one(&sg, buf, data.blksz * data.blocks);
mmc_set_data_timeout(&data, card);

1
drivers/mmc/host/Makefile
View File

@ -9,6 +9,7 @@ obj-$(CONFIG_MMC_MXC) += mxcmmc.o
obj-$(CONFIG_MMC_MXS) += mxs-mmc.o
obj-$(CONFIG_MMC_SDHCI) += sdhci.o
obj-$(CONFIG_MMC_SDHCI_PCI) += sdhci-pci.o
obj-$(subst m,y,$(CONFIG_MMC_SDHCI_PCI)) += sdhci-pci-data.o
obj-$(CONFIG_MMC_SDHCI_PXAV3) += sdhci-pxav3.o
obj-$(CONFIG_MMC_SDHCI_PXAV2) += sdhci-pxav2.o
obj-$(CONFIG_MMC_SDHCI_S3C) += sdhci-s3c.o

8
drivers/mmc/host/at91_mci.c
View File

@ -236,7 +236,7 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
sg = &data->sg[i];
sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
sgbuffer = kmap_atomic(sg_page(sg)) + sg->offset;
amount = min(size, sg->length);
size -= amount;
@ -252,7 +252,7 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
dmabuf = (unsigned *)tmpv;
}
kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
kunmap_atomic(sgbuffer);
if (size == 0)
break;
@ -302,7 +302,7 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
sg = &data->sg[i];
sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
sgbuffer = kmap_atomic(sg_page(sg)) + sg->offset;
amount = min(size, sg->length);
size -= amount;
@ -318,7 +318,7 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
}
flush_kernel_dcache_page(sg_page(sg));
kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
kunmap_atomic(sgbuffer);
data->bytes_xfered += amount;
if (size == 0)
break;

12
drivers/mmc/host/bfin_sdh.c
View File

@ -627,17 +627,7 @@ static struct platform_driver sdh_driver = {
},
};
static int __init sdh_init(void)
{
return platform_driver_register(&sdh_driver);
}
module_init(sdh_init);
static void __exit sdh_exit(void)
{
platform_driver_unregister(&sdh_driver);
}
module_exit(sdh_exit);
module_platform_driver(sdh_driver);
MODULE_DESCRIPTION("Blackfin Secure Digital Host Driver");
MODULE_AUTHOR("Cliff Cai, Roy Huang");

13
drivers/mmc/host/cb710-mmc.c
View File

@ -780,18 +780,7 @@ static struct platform_driver cb710_mmc_driver = {
#endif
};
static int __init cb710_mmc_init_module(void)
{
return platform_driver_register(&cb710_mmc_driver);
}
static void __exit cb710_mmc_cleanup_module(void)
{
platform_driver_unregister(&cb710_mmc_driver);
}
module_init(cb710_mmc_init_module);
module_exit(cb710_mmc_cleanup_module);
module_platform_driver(cb710_mmc_driver);
MODULE_AUTHOR("Michał Mirosław <mirq-linux@rere.qmqm.pl>");
MODULE_DESCRIPTION("ENE CB710 memory card reader driver - MMC/SD part");

71
drivers/mmc/host/dw_mmc.c
View File

@ -588,11 +588,11 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
mci_writel(host, CTYPE, (slot->ctype << slot->id));
}
static void dw_mci_start_request(struct dw_mci *host,
struct dw_mci_slot *slot)
static void __dw_mci_start_request(struct dw_mci *host,
struct dw_mci_slot *slot,
struct mmc_command *cmd)
{
struct mmc_request *mrq;
struct mmc_command *cmd;
struct mmc_data *data;
u32 cmdflags;
@ -610,14 +610,13 @@ static void dw_mci_start_request(struct dw_mci *host,
host->completed_events = 0;
host->data_status = 0;
data = mrq->data;
data = cmd->data;
if (data) {
dw_mci_set_timeout(host);
mci_writel(host, BYTCNT, data->blksz*data->blocks);
mci_writel(host, BLKSIZ, data->blksz);
}
cmd = mrq->cmd;
cmdflags = dw_mci_prepare_command(slot->mmc, cmd);
/* this is the first command, send the initialization clock */
@ -635,6 +634,16 @@ static void dw_mci_start_request(struct dw_mci *host,
host->stop_cmdr = dw_mci_prepare_command(slot->mmc, mrq->stop);
}
static void dw_mci_start_request(struct dw_mci *host,
struct dw_mci_slot *slot)
{
struct mmc_request *mrq = slot->mrq;
struct mmc_command *cmd;
cmd = mrq->sbc ? mrq->sbc : mrq->cmd;
__dw_mci_start_request(host, slot, cmd);
}
/* must be called with host->lock held */
static void dw_mci_queue_request(struct dw_mci *host, struct dw_mci_slot *slot,
struct mmc_request *mrq)
@ -698,12 +707,15 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
break;
}
regs = mci_readl(slot->host, UHS_REG);
/* DDR mode set */
if (ios->timing == MMC_TIMING_UHS_DDR50) {
regs = mci_readl(slot->host, UHS_REG);
if (ios->timing == MMC_TIMING_UHS_DDR50)
regs |= (0x1 << slot->id) << 16;
mci_writel(slot->host, UHS_REG, regs);
}
else
regs &= ~(0x1 << slot->id) << 16;
mci_writel(slot->host, UHS_REG, regs);
if (ios->clock) {
/*
@ -889,7 +901,14 @@ static void dw_mci_tasklet_func(unsigned long priv)
cmd = host->cmd;
host->cmd = NULL;
set_bit(EVENT_CMD_COMPLETE, &host->completed_events);
dw_mci_command_complete(host, host->mrq->cmd);
dw_mci_command_complete(host, cmd);
if (cmd == host->mrq->sbc && !cmd->error) {
prev_state = state = STATE_SENDING_CMD;
__dw_mci_start_request(host, host->cur_slot,
host->mrq->cmd);
goto unlock;
}
if (!host->mrq->data || cmd->error) {
dw_mci_request_end(host, host->mrq);
goto unlock;
@ -967,6 +986,12 @@ static void dw_mci_tasklet_func(unsigned long priv)
goto unlock;
}
if (host->mrq->sbc && !data->error) {
data->stop->error = 0;
dw_mci_request_end(host, host->mrq);
goto unlock;
}
prev_state = state = STATE_SENDING_STOP;
if (!data->error)
send_stop_cmd(host, data);
@ -1678,8 +1703,9 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
if (host->pdata->caps)
mmc->caps = host->pdata->caps;
else
mmc->caps = 0;
if (host->pdata->caps2)
mmc->caps2 = host->pdata->caps2;
if (host->pdata->get_bus_wd)
if (host->pdata->get_bus_wd(slot->id) >= 4)
@ -1923,7 +1949,7 @@ static int dw_mci_probe(struct platform_device *pdev)
* should put it in the platform data.
*/
fifo_size = mci_readl(host, FIFOTH);
fifo_size = 1 + ((fifo_size >> 16) & 0x7ff);
fifo_size = 1 + ((fifo_size >> 16) & 0xfff);
} else {
fifo_size = host->pdata->fifo_depth;
}
@ -2062,14 +2088,14 @@ static int __exit dw_mci_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM
#ifdef CONFIG_PM_SLEEP
/*
* TODO: we should probably disable the clock to the card in the suspend path.
*/
static int dw_mci_suspend(struct platform_device *pdev, pm_message_t mesg)
static int dw_mci_suspend(struct device *dev)
{
int i, ret;
struct dw_mci *host = platform_get_drvdata(pdev);
struct dw_mci *host = dev_get_drvdata(dev);
for (i = 0; i < host->num_slots; i++) {
struct dw_mci_slot *slot = host->slot[i];
@ -2092,10 +2118,10 @@ static int dw_mci_suspend(struct platform_device *pdev, pm_message_t mesg)
return 0;
}
static int dw_mci_resume(struct platform_device *pdev)
static int dw_mci_resume(struct device *dev)
{
int i, ret;
struct dw_mci *host = platform_get_drvdata(pdev);
struct dw_mci *host = dev_get_drvdata(dev);
if (host->vmmc)
regulator_enable(host->vmmc);
@ -2103,7 +2129,7 @@ static int dw_mci_resume(struct platform_device *pdev)
if (host->dma_ops->init)
host->dma_ops->init(host);
if (!mci_wait_reset(&pdev->dev, host)) {
if (!mci_wait_reset(dev, host)) {
ret = -ENODEV;
return ret;
}
@ -2131,14 +2157,15 @@ static int dw_mci_resume(struct platform_device *pdev)
#else
#define dw_mci_suspend NULL
#define dw_mci_resume NULL
#endif /* CONFIG_PM */
#endif /* CONFIG_PM_SLEEP */
static SIMPLE_DEV_PM_OPS(dw_mci_pmops, dw_mci_suspend, dw_mci_resume);
static struct platform_driver dw_mci_driver = {
.remove = __exit_p(dw_mci_remove),
.suspend = dw_mci_suspend,
.resume = dw_mci_resume,
.driver = {
.name = "dw_mmc",
.pm = &dw_mci_pmops,
},
};

2
drivers/mmc/host/dw_mmc.h
View File

@ -126,7 +126,7 @@
#define SDMMC_CMD_RESP_EXP BIT(6)
#define SDMMC_CMD_INDX(n) ((n) & 0x1F)
/* Status register defines */
#define SDMMC_GET_FCNT(x) (((x)>>17) & 0x1FF)
#define SDMMC_GET_FCNT(x) (((x)>>17) & 0x1FFF)
/* Internal DMAC interrupt defines */
#define SDMMC_IDMAC_INT_AI BIT(9)
#define SDMMC_IDMAC_INT_NI BIT(8)

12
drivers/mmc/host/jz4740_mmc.c
View File

@ -1012,17 +1012,7 @@ static struct platform_driver jz4740_mmc_driver = {
},
};
static int __init jz4740_mmc_init(void)
{
return platform_driver_register(&jz4740_mmc_driver);
}
module_init(jz4740_mmc_init);
static void __exit jz4740_mmc_exit(void)
{
platform_driver_unregister(&jz4740_mmc_driver);
}
module_exit(jz4740_mmc_exit);
module_platform_driver(jz4740_mmc_driver);
MODULE_DESCRIPTION("JZ4740 SD/MMC controller driver");
MODULE_LICENSE("GPL");

1
drivers/mmc/host/mmc_spi.c
View File

@ -1525,7 +1525,6 @@ static struct of_device_id mmc_spi_of_match_table[] __devinitdata = {
static struct spi_driver mmc_spi_driver = {
.driver = {
.name = "mmc_spi",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.of_match_table = mmc_spi_of_match_table,
},

1
drivers/mmc/host/mmci.c
View File

@ -1245,6 +1245,7 @@ static int __devinit mmci_probe(struct amba_device *dev,
if (host->vcc == NULL)
mmc->ocr_avail = plat->ocr_mask;
mmc->caps = plat->capabilities;
mmc->caps2 = plat->capabilities2;
/*
* We can do SGIO

19
drivers/mmc/host/msm_sdcc.c
View File

@ -689,8 +689,8 @@ msmsdcc_pio_irq(int irq, void *dev_id)
/* Map the current scatter buffer */
local_irq_save(flags);
buffer = kmap_atomic(sg_page(host->pio.sg),
KM_BIO_SRC_IRQ) + host->pio.sg->offset;
buffer = kmap_atomic(sg_page(host->pio.sg))
+ host->pio.sg->offset;
buffer += host->pio.sg_off;
remain = host->pio.sg->length - host->pio.sg_off;
len = 0;
@ -700,7 +700,7 @@ msmsdcc_pio_irq(int irq, void *dev_id)
len = msmsdcc_pio_write(host, buffer, remain, status);
/* Unmap the buffer */
kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
kunmap_atomic(buffer);
local_irq_restore(flags);
host->pio.sg_off += len;
@ -1480,18 +1480,7 @@ static struct platform_driver msmsdcc_driver = {
},
};
static int __init msmsdcc_init(void)
{
return platform_driver_register(&msmsdcc_driver);
}
static void __exit msmsdcc_exit(void)
{
platform_driver_unregister(&msmsdcc_driver);
}
module_init(msmsdcc_init);
module_exit(msmsdcc_exit);
module_platform_driver(msmsdcc_driver);
MODULE_DESCRIPTION("Qualcomm MSM 7X00A Multimedia Card Interface driver");
MODULE_LICENSE("GPL");

13
drivers/mmc/host/mxcmmc.c
View File

@ -1047,18 +1047,7 @@ static struct platform_driver mxcmci_driver = {
}
};
static int __init mxcmci_init(void)
{
return platform_driver_register(&mxcmci_driver);
}
static void __exit mxcmci_exit(void)
{
platform_driver_unregister(&mxcmci_driver);
}
module_init(mxcmci_init);
module_exit(mxcmci_exit);
module_platform_driver(mxcmci_driver);
MODULE_DESCRIPTION("i.MX Multimedia Card Interface Driver");
MODULE_AUTHOR("Sascha Hauer, Pengutronix");

13
drivers/mmc/host/mxs-mmc.c
View File

@ -855,18 +855,7 @@ static struct platform_driver mxs_mmc_driver = {
},
};
static int __init mxs_mmc_init(void)
{
return platform_driver_register(&mxs_mmc_driver);
}
static void __exit mxs_mmc_exit(void)
{
platform_driver_unregister(&mxs_mmc_driver);
}
module_init(mxs_mmc_init);
module_exit(mxs_mmc_exit);
module_platform_driver(mxs_mmc_driver);
MODULE_DESCRIPTION("FREESCALE MXS MMC peripheral");
MODULE_AUTHOR("Freescale Semiconductor");

43
drivers/mmc/host/omap_hsmmc.c
View File

@ -24,7 +24,6 @@
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/timer.h>
#include <linux/clk.h>
#include <linux/mmc/host.h>
@ -120,7 +119,6 @@
#define MMC_AUTOSUSPEND_DELAY 100
#define MMC_TIMEOUT_MS 20
#define OMAP_MMC_MASTER_CLOCK 96000000
#define OMAP_MMC_MIN_CLOCK 400000
#define OMAP_MMC_MAX_CLOCK 52000000
#define DRIVER_NAME "omap_hsmmc"
@ -163,7 +161,6 @@ struct omap_hsmmc_host {
*/
struct regulator *vcc;
struct regulator *vcc_aux;
struct work_struct mmc_carddetect_work;
void __iomem *base;
resource_size_t mapbase;
spinlock_t irq_lock; /* Prevent races with irq handler */
@ -598,12 +595,12 @@ static void omap_hsmmc_disable_irq(struct omap_hsmmc_host *host)
}
/* Calculate divisor for the given clock frequency */
static u16 calc_divisor(struct mmc_ios *ios)
static u16 calc_divisor(struct omap_hsmmc_host *host, struct mmc_ios *ios)
{
u16 dsor = 0;
if (ios->clock) {
dsor = DIV_ROUND_UP(OMAP_MMC_MASTER_CLOCK, ios->clock);
dsor = DIV_ROUND_UP(clk_get_rate(host->fclk), ios->clock);
if (dsor > 250)
dsor = 250;
}
@ -623,7 +620,7 @@ static void omap_hsmmc_set_clock(struct omap_hsmmc_host *host)
regval = OMAP_HSMMC_READ(host->base, SYSCTL);
regval = regval & ~(CLKD_MASK | DTO_MASK);
regval = regval | (calc_divisor(ios) << 6) | (DTO << 16);
regval = regval | (calc_divisor(host, ios) << 6) | (DTO << 16);
OMAP_HSMMC_WRITE(host->base, SYSCTL, regval);
OMAP_HSMMC_WRITE(host->base, SYSCTL,
OMAP_HSMMC_READ(host->base, SYSCTL) | ICE);
@ -1280,17 +1277,16 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
}
/*
* Work Item to notify the core about card insertion/removal
* irq handler to notify the core about card insertion/removal
*/
static void omap_hsmmc_detect(struct work_struct *work)
static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
{
struct omap_hsmmc_host *host =
container_of(work, struct omap_hsmmc_host, mmc_carddetect_work);
struct omap_hsmmc_host *host = dev_id;
struct omap_mmc_slot_data *slot = &mmc_slot(host);
int carddetect;
if (host->suspended)
return;
return IRQ_HANDLED;
sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
@ -1305,19 +1301,6 @@ static void omap_hsmmc_detect(struct work_struct *work)
mmc_detect_change(host->mmc, (HZ * 200) / 1000);
else
mmc_detect_change(host->mmc, (HZ * 50) / 1000);
}
/*
* ISR for handling card insertion and removal
*/
static irqreturn_t omap_hsmmc_cd_handler(int irq, void *dev_id)
{
struct omap_hsmmc_host *host = (struct omap_hsmmc_host *)dev_id;
if (host->suspended)
return IRQ_HANDLED;
schedule_work(&host->mmc_carddetect_work);
return IRQ_HANDLED;
}
@ -1919,7 +1902,6 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
host->next_data.cookie = 1;
platform_set_drvdata(pdev, host);
INIT_WORK(&host->mmc_carddetect_work, omap_hsmmc_detect);
mmc->ops = &omap_hsmmc_ops;
@ -2049,10 +2031,11 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
/* Request IRQ for card detect */
if ((mmc_slot(host).card_detect_irq)) {
ret = request_irq(mmc_slot(host).card_detect_irq,
omap_hsmmc_cd_handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
mmc_hostname(mmc), host);
ret = request_threaded_irq(mmc_slot(host).card_detect_irq,
NULL,
omap_hsmmc_detect,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
mmc_hostname(mmc), host);
if (ret) {
dev_dbg(mmc_dev(host->mmc),
"Unable to grab MMC CD IRQ\n");
@ -2131,7 +2114,6 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
free_irq(host->irq, host);
if (mmc_slot(host).card_detect_irq)
free_irq(mmc_slot(host).card_detect_irq, host);
flush_work_sync(&host->mmc_carddetect_work);
pm_runtime_put_sync(host->dev);
pm_runtime_disable(host->dev);
@ -2178,7 +2160,6 @@ static int omap_hsmmc_suspend(struct device *dev)
return ret;
}
}
cancel_work_sync(&host->mmc_carddetect_work);
ret = mmc_suspend_host(host->mmc);
if (ret) {

13
drivers/mmc/host/pxamci.c
View File

@ -872,18 +872,7 @@ static struct platform_driver pxamci_driver = {
},
};
static int __init pxamci_init(void)
{
return platform_driver_register(&pxamci_driver);
}
static void __exit pxamci_exit(void)
{
platform_driver_unregister(&pxamci_driver);
}
module_init(pxamci_init);
module_exit(pxamci_exit);
module_platform_driver(pxamci_driver);
MODULE_DESCRIPTION("PXA Multimedia Card Interface Driver");
MODULE_LICENSE("GPL");

13
drivers/mmc/host/s3cmci.c
View File

@ -1914,18 +1914,7 @@ static struct platform_driver s3cmci_driver = {
.shutdown = s3cmci_shutdown,
};
static int __init s3cmci_init(void)
{
return platform_driver_register(&s3cmci_driver);
}
static void __exit s3cmci_exit(void)
{
platform_driver_unregister(&s3cmci_driver);
}
module_init(s3cmci_init);
module_exit(s3cmci_exit);
module_platform_driver(s3cmci_driver);
MODULE_DESCRIPTION("Samsung S3C MMC/SD Card Interface driver");
MODULE_LICENSE("GPL v2");

12
drivers/mmc/host/sdhci-cns3xxx.c
View File

@ -115,17 +115,7 @@ static struct platform_driver sdhci_cns3xxx_driver = {
.remove = __devexit_p(sdhci_cns3xxx_remove),
};
static int __init sdhci_cns3xxx_init(void)
{
return platform_driver_register(&sdhci_cns3xxx_driver);
}
module_init(sdhci_cns3xxx_init);
static void __exit sdhci_cns3xxx_exit(void)
{
platform_driver_unregister(&sdhci_cns3xxx_driver);
}
module_exit(sdhci_cns3xxx_exit);
module_platform_driver(sdhci_cns3xxx_driver);
MODULE_DESCRIPTION("SDHCI driver for CNS3xxx");
MODULE_AUTHOR("Scott Shu, "

12
drivers/mmc/host/sdhci-dove.c
View File

@ -88,17 +88,7 @@ static struct platform_driver sdhci_dove_driver = {
.remove = __devexit_p(sdhci_dove_remove),
};
static int __init sdhci_dove_init(void)
{
return platform_driver_register(&sdhci_dove_driver);
}
module_init(sdhci_dove_init);
static void __exit sdhci_dove_exit(void)
{
platform_driver_unregister(&sdhci_dove_driver);
}
module_exit(sdhci_dove_exit);
module_platform_driver(sdhci_dove_driver);
MODULE_DESCRIPTION("SDHCI driver for Dove");
MODULE_AUTHOR("Saeed Bishara <saeed@marvell.com>, "

12
drivers/mmc/host/sdhci-esdhc-imx.c
View File

@ -606,17 +606,7 @@ static struct platform_driver sdhci_esdhc_imx_driver = {
.remove = __devexit_p(sdhci_esdhc_imx_remove),
};
static int __init sdhci_esdhc_imx_init(void)
{
return platform_driver_register(&sdhci_esdhc_imx_driver);
}
module_init(sdhci_esdhc_imx_init);
static void __exit sdhci_esdhc_imx_exit(void)
{
platform_driver_unregister(&sdhci_esdhc_imx_driver);
}
module_exit(sdhci_esdhc_imx_exit);
module_platform_driver(sdhci_esdhc_imx_driver);
MODULE_DESCRIPTION("SDHCI driver for Freescale i.MX eSDHC");
MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");

2
drivers/mmc/host/sdhci-esdhc.h
View File

@ -73,7 +73,7 @@ static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock)
| (div << ESDHC_DIVIDER_SHIFT)
| (pre_div << ESDHC_PREDIV_SHIFT));
sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
mdelay(100);
mdelay(1);
out:
host->clock = clock;
}

12
drivers/mmc/host/sdhci-of-esdhc.c
View File

@ -131,17 +131,7 @@ static struct platform_driver sdhci_esdhc_driver = {
.remove = __devexit_p(sdhci_esdhc_remove),
};
static int __init sdhci_esdhc_init(void)
{
return platform_driver_register(&sdhci_esdhc_driver);
}
module_init(sdhci_esdhc_init);
static void __exit sdhci_esdhc_exit(void)
{
platform_driver_unregister(&sdhci_esdhc_driver);
}
module_exit(sdhci_esdhc_exit);
module_platform_driver(sdhci_esdhc_driver);
MODULE_DESCRIPTION("SDHCI OF driver for Freescale MPC eSDHC");
MODULE_AUTHOR("Xiaobo Xie <X.Xie@freescale.com>, "

12
drivers/mmc/host/sdhci-of-hlwd.c
View File

@ -93,17 +93,7 @@ static struct platform_driver sdhci_hlwd_driver = {
.remove = __devexit_p(sdhci_hlwd_remove),
};
static int __init sdhci_hlwd_init(void)
{
return platform_driver_register(&sdhci_hlwd_driver);
}
module_init(sdhci_hlwd_init);
static void __exit sdhci_hlwd_exit(void)
{
platform_driver_unregister(&sdhci_hlwd_driver);
}
module_exit(sdhci_hlwd_exit);
module_platform_driver(sdhci_hlwd_driver);
MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver");
MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz");

5
drivers/mmc/host/sdhci-pci-data.c Normal file
View File

@ -0,0 +1,5 @@
#include <linux/module.h>
#include <linux/mmc/sdhci-pci-data.h>
struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev, int slotno);
EXPORT_SYMBOL_GPL(sdhci_pci_get_data);

181
drivers/mmc/host/sdhci-pci.c
View File

@ -23,8 +23,8 @@
#include <linux/scatterlist.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/sfi.h>
#include <linux/pm_runtime.h>
#include <linux/mmc/sdhci-pci-data.h>
#include "sdhci.h"
@ -61,6 +61,7 @@ struct sdhci_pci_fixes {
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;
@ -171,32 +172,9 @@ static int mrst_hc_probe(struct sdhci_pci_chip *chip)
return 0;
}
/* Medfield eMMC hardware reset GPIOs */
static int mfd_emmc0_rst_gpio = -EINVAL;
static int mfd_emmc1_rst_gpio = -EINVAL;
static int mfd_emmc_gpio_parse(struct sfi_table_header *table)
{
struct sfi_table_simple *sb = (struct sfi_table_simple *)table;
struct sfi_gpio_table_entry *entry;
int i, num;
num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
entry = (struct sfi_gpio_table_entry *)sb->pentry;
for (i = 0; i < num; i++, entry++) {
if (!strncmp(entry->pin_name, "emmc0_rst", SFI_NAME_LEN))
mfd_emmc0_rst_gpio = entry->pin_no;
else if (!strncmp(entry->pin_name, "emmc1_rst", SFI_NAME_LEN))
mfd_emmc1_rst_gpio = entry->pin_no;
}
return 0;
}
#ifdef CONFIG_PM_RUNTIME
static irqreturn_t mfd_sd_cd(int irq, void *dev_id)
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;
@ -205,15 +183,16 @@ static irqreturn_t mfd_sd_cd(int irq, void *dev_id)
return IRQ_HANDLED;
}
#define MFLD_SD_CD_PIN 69
static int mfd_sd_probe_slot(struct sdhci_pci_slot *slot)
static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
{
int err, irq, gpio = MFLD_SD_CD_PIN;
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;
@ -226,72 +205,53 @@ static int mfd_sd_probe_slot(struct sdhci_pci_slot *slot)
if (irq < 0)
goto out_free;
err = request_irq(irq, mfd_sd_cd, IRQF_TRIGGER_RISING |
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;
slot->host->quirks2 |= SDHCI_QUIRK2_OWN_CARD_DETECTION;
return 0;
return;
out_free:
gpio_free(gpio);
out:
dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
return 0;
}
static void mfd_sd_remove_slot(struct sdhci_pci_slot *slot, int dead)
static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
{
if (slot->cd_irq >= 0)
free_irq(slot->cd_irq, slot);
gpio_free(slot->cd_gpio);
if (gpio_is_valid(slot->cd_gpio))
gpio_free(slot->cd_gpio);
}
#else
#define mfd_sd_probe_slot NULL
#define mfd_sd_remove_slot NULL
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)
{
const char *name = NULL;
int gpio = -EINVAL;
sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, mfd_emmc_gpio_parse);
switch (slot->chip->pdev->device) {
case PCI_DEVICE_ID_INTEL_MFD_EMMC0:
gpio = mfd_emmc0_rst_gpio;
name = "eMMC0_reset";
break;
case PCI_DEVICE_ID_INTEL_MFD_EMMC1:
gpio = mfd_emmc1_rst_gpio;
name = "eMMC1_reset";
break;
}
if (!gpio_request(gpio, name)) {
gpio_direction_output(gpio, 1);
slot->rst_n_gpio = gpio;
slot->host->mmc->caps |= MMC_CAP_HW_RESET;
}
slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
slot->host->mmc->caps2 = MMC_CAP2_BOOTPART_NOACC;
return 0;
}
static void mfd_emmc_remove_slot(struct sdhci_pci_slot *slot, int dead)
static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
{
gpio_free(slot->rst_n_gpio);
slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD;
return 0;
}
static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = {
@ -307,20 +267,18 @@ static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.allow_runtime_pm = true,
.probe_slot = mfd_sd_probe_slot,
.remove_slot = mfd_sd_remove_slot,
};
static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.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,
.remove_slot = mfd_emmc_remove_slot,
};
/* O2Micro extra registers */
@ -1012,11 +970,8 @@ static int sdhci_pci_suspend(struct device *dev)
ret = sdhci_suspend_host(slot->host);
if (ret) {
for (i--; i >= 0; i--)
sdhci_resume_host(chip->slots[i]->host);
return ret;
}
if (ret)
goto err_pci_suspend;
slot_pm_flags = slot->host->mmc->pm_flags;
if (slot_pm_flags & MMC_PM_WAKE_SDIO_IRQ)
@ -1027,11 +982,8 @@ static int sdhci_pci_suspend(struct device *dev)
if (chip->fixes && chip->fixes->suspend) {
ret = chip->fixes->suspend(chip);
if (ret) {
for (i = chip->num_slots - 1; i >= 0; i--)
sdhci_resume_host(chip->slots[i]->host);
return ret;
}
if (ret)
goto err_pci_suspend;
}
pci_save_state(pdev);
@ -1048,6 +1000,11 @@ static int sdhci_pci_suspend(struct device *dev)
}
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)
@ -1113,23 +1070,22 @@ static int sdhci_pci_runtime_suspend(struct device *dev)
ret = sdhci_runtime_suspend_host(slot->host);
if (ret) {
for (i--; i >= 0; i--)
sdhci_runtime_resume_host(chip->slots[i]->host);
return ret;
}
if (ret)
goto err_pci_runtime_suspend;
}
if (chip->fixes && chip->fixes->suspend) {
ret = chip->fixes->suspend(chip);
if (ret) {
for (i = chip->num_slots - 1; i >= 0; i--)
sdhci_runtime_resume_host(chip->slots[i]->host);
return ret;
}
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)
@ -1190,11 +1146,12 @@ static const struct dev_pm_ops sdhci_pci_pm_ops = {
\*****************************************************************************/
static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
struct pci_dev *pdev, struct sdhci_pci_chip *chip, int bar)
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;
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);
@ -1228,6 +1185,23 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
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;
@ -1238,7 +1212,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
ret = pci_request_region(pdev, bar, mmc_hostname(host->mmc));
if (ret) {
dev_err(&pdev->dev, "cannot request region\n");
goto free;
goto cleanup;
}
host->ioaddr = pci_ioremap_bar(pdev, bar);
@ -1254,15 +1228,30 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
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);
@ -1272,6 +1261,10 @@ unmap:
release:
pci_release_region(pdev, bar);
cleanup:
if (slot->data && slot->data->cleanup)
slot->data->cleanup(slot->data);
free:
sdhci_free_host(host);
@ -1283,6 +1276,8 @@ 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)
@ -1290,9 +1285,15 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
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);
@ -1379,7 +1380,7 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
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);
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]);

12
drivers/mmc/host/sdhci-pxav2.c
View File

@ -223,18 +223,8 @@ static struct platform_driver sdhci_pxav2_driver = {
.probe = sdhci_pxav2_probe,
.remove = __devexit_p(sdhci_pxav2_remove),
};
static int __init sdhci_pxav2_init(void)
{
return platform_driver_register(&sdhci_pxav2_driver);
}
static void __exit sdhci_pxav2_exit(void)
{
platform_driver_unregister(&sdhci_pxav2_driver);
}
module_init(sdhci_pxav2_init);
module_exit(sdhci_pxav2_exit);
module_platform_driver(sdhci_pxav2_driver);
MODULE_DESCRIPTION("SDHCI driver for pxav2");
MODULE_AUTHOR("Marvell International Ltd.");

12
drivers/mmc/host/sdhci-pxav3.c
View File

@ -269,18 +269,8 @@ static struct platform_driver sdhci_pxav3_driver = {
.probe = sdhci_pxav3_probe,
.remove = __devexit_p(sdhci_pxav3_remove),
};
static int __init sdhci_pxav3_init(void)
{
return platform_driver_register(&sdhci_pxav3_driver);
}
static void __exit sdhci_pxav3_exit(void)
{
platform_driver_unregister(&sdhci_pxav3_driver);
}
module_init(sdhci_pxav3_init);
module_exit(sdhci_pxav3_exit);
module_platform_driver(sdhci_pxav3_driver);
MODULE_DESCRIPTION("SDHCI driver for pxav3");
MODULE_AUTHOR("Marvell International Ltd.");

18
drivers/mmc/host/sdhci-s3c.c
View File

@ -80,7 +80,7 @@ static void sdhci_s3c_check_sclk(struct sdhci_host *host)
tmp &= ~S3C_SDHCI_CTRL2_SELBASECLK_MASK;
tmp |= ourhost->cur_clk << S3C_SDHCI_CTRL2_SELBASECLK_SHIFT;
writel(tmp, host->ioaddr + 0x80);
writel(tmp, host->ioaddr + S3C_SDHCI_CONTROL2);
}
}
@ -521,6 +521,9 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
if (pdata->host_caps)
host->mmc->caps |= pdata->host_caps;
if (pdata->pm_caps)
host->mmc->pm_caps |= pdata->pm_caps;
host->quirks |= (SDHCI_QUIRK_32BIT_DMA_ADDR |
SDHCI_QUIRK_32BIT_DMA_SIZE);
@ -654,18 +657,7 @@ static struct platform_driver sdhci_s3c_driver = {
},
};
static int __init sdhci_s3c_init(void)
{
return platform_driver_register(&sdhci_s3c_driver);
}
static void __exit sdhci_s3c_exit(void)
{
platform_driver_unregister(&sdhci_s3c_driver);
}
module_init(sdhci_s3c_init);
module_exit(sdhci_s3c_exit);
module_platform_driver(sdhci_s3c_driver);
MODULE_DESCRIPTION("Samsung SDHCI (HSMMC) glue");
MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");

51
drivers/mmc/host/sdhci-spear.c
View File

@ -21,6 +21,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sdhci-spear.h>
@ -271,26 +272,54 @@ static int __devexit sdhci_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM
static int sdhci_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
struct spear_sdhci *sdhci = dev_get_platdata(dev);
int ret;
ret = sdhci_suspend_host(host);
if (!ret)
clk_disable(sdhci->clk);
return ret;
}
static int sdhci_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
struct spear_sdhci *sdhci = dev_get_platdata(dev);
int ret;
ret = clk_enable(sdhci->clk);
if (ret) {
dev_dbg(dev, "Resume: Error enabling clock\n");
return ret;
}
return sdhci_resume_host(host);
}
const struct dev_pm_ops sdhci_pm_ops = {
.suspend = sdhci_suspend,
.resume = sdhci_resume,
};
#endif
static struct platform_driver sdhci_driver = {
.driver = {
.name = "sdhci",
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &sdhci_pm_ops,
#endif
},
.probe = sdhci_probe,
.remove = __devexit_p(sdhci_remove),
};
static int __init sdhci_init(void)
{
return platform_driver_register(&sdhci_driver);
}
module_init(sdhci_init);
static void __exit sdhci_exit(void)
{
platform_driver_unregister(&sdhci_driver);
}
module_exit(sdhci_exit);
module_platform_driver(sdhci_driver);
MODULE_DESCRIPTION("SPEAr Secure Digital Host Controller Interface driver");
MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");

12
drivers/mmc/host/sdhci-tegra.c
View File

@ -324,17 +324,7 @@ static struct platform_driver sdhci_tegra_driver = {
.remove = __devexit_p(sdhci_tegra_remove),
};
static int __init sdhci_tegra_init(void)
{
return platform_driver_register(&sdhci_tegra_driver);
}
module_init(sdhci_tegra_init);
static void __exit sdhci_tegra_exit(void)
{
platform_driver_unregister(&sdhci_tegra_driver);
}
module_exit(sdhci_tegra_exit);
module_platform_driver(sdhci_tegra_driver);
MODULE_DESCRIPTION("SDHCI driver for Tegra");
MODULE_AUTHOR(" Google, Inc.");

150
drivers/mmc/host/sdhci.c
View File

@ -49,7 +49,7 @@ static void sdhci_finish_data(struct sdhci_host *);
static void sdhci_send_command(struct sdhci_host *, struct mmc_command *);
static void sdhci_finish_command(struct sdhci_host *);
static int sdhci_execute_tuning(struct mmc_host *mmc);
static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
static void sdhci_tuning_timer(unsigned long data);
#ifdef CONFIG_PM_RUNTIME
@ -146,10 +146,8 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable)
{
u32 present, irqs;
if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
return;
if (host->quirks2 & SDHCI_QUIRK2_OWN_CARD_DETECTION)
if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) ||
!mmc_card_is_removable(host->mmc))
return;
present = sdhci_readl(host, SDHCI_PRESENT_STATE) &
@ -214,6 +212,11 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask)
if (host->quirks & SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET)
sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, ier);
if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
if ((host->ops->enable_dma) && (mask & SDHCI_RESET_ALL))
host->ops->enable_dma(host);
}
}
static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
@ -423,12 +426,12 @@ static void sdhci_transfer_pio(struct sdhci_host *host)
static char *sdhci_kmap_atomic(struct scatterlist *sg, unsigned long *flags)
{
local_irq_save(*flags);
return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
return kmap_atomic(sg_page(sg)) + sg->offset;
}
static void sdhci_kunmap_atomic(void *buffer, unsigned long *flags)
{
kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
kunmap_atomic(buffer);
local_irq_restore(*flags);
}
@ -1016,7 +1019,8 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
flags |= SDHCI_CMD_INDEX;
/* CMD19 is special in that the Data Present Select should be set */
if (cmd->data || (cmd->opcode == MMC_SEND_TUNING_BLOCK))
if (cmd->data || cmd->opcode == MMC_SEND_TUNING_BLOCK ||
cmd->opcode == MMC_SEND_TUNING_BLOCK_HS200)
flags |= SDHCI_CMD_DATA;
sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND);
@ -1066,12 +1070,15 @@ static void sdhci_finish_command(struct sdhci_host *host)
static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
{
int div = 0; /* Initialized for compiler warning */
int real_div = div, clk_mul = 1;
u16 clk = 0;
unsigned long timeout;
if (clock == host->clock)
if (clock && clock == host->clock)
return;
host->mmc->actual_clock = 0;
if (host->ops->set_clock) {
host->ops->set_clock(host, clock);
if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK)
@ -1109,6 +1116,8 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
* Control register.
*/
clk = SDHCI_PROG_CLOCK_MODE;
real_div = div;
clk_mul = host->clk_mul;
div--;
}
} else {
@ -1122,6 +1131,7 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
break;
}
}
real_div = div;
div >>= 1;
}
} else {
@ -1130,9 +1140,13 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
if ((host->max_clk / div) <= clock)
break;
}
real_div = div;
div >>= 1;
}
if (real_div)
host->mmc->actual_clock = (host->max_clk * clk_mul) / real_div;
clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
<< SDHCI_DIVIDER_HI_SHIFT;
@ -1160,7 +1174,7 @@ out:
host->clock = clock;
}
static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
static int sdhci_set_power(struct sdhci_host *host, unsigned short power)
{
u8 pwr = 0;
@ -1183,13 +1197,13 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
}
if (host->pwr == pwr)
return;
return -1;
host->pwr = pwr;
if (pwr == 0) {
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
return;
return 0;
}
/*
@ -1216,6 +1230,8 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
*/
if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER)
mdelay(10);
return power;
}
/*****************************************************************************\
@ -1277,7 +1293,7 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
if ((host->flags & SDHCI_NEEDS_RETUNING) &&
!(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))) {
spin_unlock_irqrestore(&host->lock, flags);
sdhci_execute_tuning(mmc);
sdhci_execute_tuning(mmc, mrq->cmd->opcode);
spin_lock_irqsave(&host->lock, flags);
/* Restore original mmc_request structure */
@ -1297,12 +1313,17 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
{
unsigned long flags;
int vdd_bit = -1;
u8 ctrl;
spin_lock_irqsave(&host->lock, flags);
if (host->flags & SDHCI_DEVICE_DEAD)
goto out;
if (host->flags & SDHCI_DEVICE_DEAD) {
spin_unlock_irqrestore(&host->lock, flags);
if (host->vmmc && ios->power_mode == MMC_POWER_OFF)
mmc_regulator_set_ocr(host->mmc, host->vmmc, 0);
return;
}
/*
* Reset the chip on each power off.
@ -1316,9 +1337,15 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
sdhci_set_clock(host, ios->clock);
if (ios->power_mode == MMC_POWER_OFF)
sdhci_set_power(host, -1);
vdd_bit = sdhci_set_power(host, -1);
else
sdhci_set_power(host, ios->vdd);
vdd_bit = sdhci_set_power(host, ios->vdd);
if (host->vmmc && vdd_bit != -1) {
spin_unlock_irqrestore(&host->lock, flags);
mmc_regulator_set_ocr(host->mmc, host->vmmc, vdd_bit);
spin_lock_irqsave(&host->lock, flags);
}
if (host->ops->platform_send_init_74_clocks)
host->ops->platform_send_init_74_clocks(host, ios->power_mode);
@ -1361,11 +1388,11 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
unsigned int clock;
/* In case of UHS-I modes, set High Speed Enable */
if ((ios->timing == MMC_TIMING_UHS_SDR50) ||
if ((ios->timing == MMC_TIMING_MMC_HS200) ||
(ios->timing == MMC_TIMING_UHS_SDR50) ||
(ios->timing == MMC_TIMING_UHS_SDR104) ||
(ios->timing == MMC_TIMING_UHS_DDR50) ||
(ios->timing == MMC_TIMING_UHS_SDR25) ||
(ios->timing == MMC_TIMING_UHS_SDR12))
(ios->timing == MMC_TIMING_UHS_SDR25))
ctrl |= SDHCI_CTRL_HISPD;
ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
@ -1415,7 +1442,9 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
/* Select Bus Speed Mode for host */
ctrl_2 &= ~SDHCI_CTRL_UHS_MASK;
if (ios->timing == MMC_TIMING_UHS_SDR12)
if (ios->timing == MMC_TIMING_MMC_HS200)
ctrl_2 |= SDHCI_CTRL_HS_SDR200;
else if (ios->timing == MMC_TIMING_UHS_SDR12)
ctrl_2 |= SDHCI_CTRL_UHS_SDR12;
else if (ios->timing == MMC_TIMING_UHS_SDR25)
ctrl_2 |= SDHCI_CTRL_UHS_SDR25;
@ -1443,7 +1472,6 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
if(host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS)
sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
out:
mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@ -1663,7 +1691,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
return err;
}
static int sdhci_execute_tuning(struct mmc_host *mmc)
static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
{
struct sdhci_host *host;
u16 ctrl;
@ -1671,6 +1699,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
int tuning_loop_counter = MAX_TUNING_LOOP;
unsigned long timeout;
int err = 0;
bool requires_tuning_nonuhs = false;
host = mmc_priv(mmc);
@ -1681,13 +1710,19 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
/*
* Host Controller needs tuning only in case of SDR104 mode
* and for SDR50 mode when Use Tuning for SDR50 is set in
* The Host Controller needs tuning only in case of SDR104 mode
* and for SDR50 mode when Use Tuning for SDR50 is set in the
* Capabilities register.
* If the Host Controller supports the HS200 mode then the
* tuning function has to be executed.
*/
if (((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR50) &&
(host->flags & SDHCI_SDR50_NEEDS_TUNING ||
host->flags & SDHCI_HS200_NEEDS_TUNING))
requires_tuning_nonuhs = true;
if (((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR104) ||
(((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR50) &&
(host->flags & SDHCI_SDR50_NEEDS_TUNING)))
requires_tuning_nonuhs)
ctrl |= SDHCI_CTRL_EXEC_TUNING;
else {
spin_unlock(&host->lock);
@ -1723,7 +1758,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
if (!tuning_loop_counter && !timeout)
break;
cmd.opcode = MMC_SEND_TUNING_BLOCK;
cmd.opcode = opcode;
cmd.arg = 0;
cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
cmd.retries = 0;
@ -1738,7 +1773,17 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
* block to the Host Controller. So we set the block size
* to 64 here.
*/
sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 64), SDHCI_BLOCK_SIZE);
if (cmd.opcode == MMC_SEND_TUNING_BLOCK_HS200) {
if (mmc->ios.bus_width == MMC_BUS_WIDTH_8)
sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 128),
SDHCI_BLOCK_SIZE);
else if (mmc->ios.bus_width == MMC_BUS_WIDTH_4)
sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 64),
SDHCI_BLOCK_SIZE);
} else {
sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, 64),
SDHCI_BLOCK_SIZE);
}
/*
* The tuning block is sent by the card to the host controller.
@ -2121,12 +2166,14 @@ static void sdhci_show_adma_error(struct sdhci_host *host) { }
static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
{
u32 command;
BUG_ON(intmask == 0);
/* CMD19 generates _only_ Buffer Read Ready interrupt */
if (intmask & SDHCI_INT_DATA_AVAIL) {
if (SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)) ==
MMC_SEND_TUNING_BLOCK) {
command = SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND));
if (command == MMC_SEND_TUNING_BLOCK ||
command == MMC_SEND_TUNING_BLOCK_HS200) {
host->tuning_done = 1;
wake_up(&host->buf_ready_int);
return;
@ -2330,26 +2377,33 @@ out:
int sdhci_suspend_host(struct sdhci_host *host)
{
int ret;
bool has_tuning_timer;
sdhci_disable_card_detection(host);
/* Disable tuning since we are suspending */
if (host->version >= SDHCI_SPEC_300 && host->tuning_count &&
host->tuning_mode == SDHCI_TUNING_MODE_1) {
has_tuning_timer = host->version >= SDHCI_SPEC_300 &&
host->tuning_count && host->tuning_mode == SDHCI_TUNING_MODE_1;
if (has_tuning_timer) {
del_timer_sync(&host->tuning_timer);
host->flags &= ~SDHCI_NEEDS_RETUNING;
mod_timer(&host->tuning_timer, jiffies +
host->tuning_count * HZ);
}
ret = mmc_suspend_host(host->mmc);
if (ret)
if (ret) {
if (has_tuning_timer) {
host->flags |= SDHCI_NEEDS_RETUNING;
mod_timer(&host->tuning_timer, jiffies +
host->tuning_count * HZ);
}
sdhci_enable_card_detection(host);
return ret;
}
free_irq(host->irq, host);
if (host->vmmc)
ret = regulator_disable(host->vmmc);
return ret;
}
@ -2359,12 +2413,6 @@ int sdhci_resume_host(struct sdhci_host *host)
{
int ret;
if (host->vmmc) {
int ret = regulator_enable(host->vmmc);
if (ret)
return ret;
}
if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
if (host->ops->enable_dma)
host->ops->enable_dma(host);
@ -2727,10 +2775,14 @@ int sdhci_add_host(struct sdhci_host *host)
if (caps[1] & SDHCI_SUPPORT_DDR50)
mmc->caps |= MMC_CAP_UHS_DDR50;
/* Does the host needs tuning for SDR50? */
/* Does the host need tuning for SDR50? */
if (caps[1] & SDHCI_USE_SDR50_TUNING)
host->flags |= SDHCI_SDR50_NEEDS_TUNING;
/* Does the host need tuning for HS200? */
if (mmc->caps2 & MMC_CAP2_HS200)
host->flags |= SDHCI_HS200_NEEDS_TUNING;
/* Driver Type(s) (A, C, D) supported by the host */
if (caps[1] & SDHCI_DRIVER_TYPE_A)
mmc->caps |= MMC_CAP_DRIVER_TYPE_A;
@ -2926,8 +2978,6 @@ int sdhci_add_host(struct sdhci_host *host)
if (IS_ERR(host->vmmc)) {
pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc));
host->vmmc = NULL;
} else {
regulator_enable(host->vmmc);
}
sdhci_init(host, 0);
@ -3016,10 +3066,8 @@ void sdhci_remove_host(struct sdhci_host *host, int dead)
tasklet_kill(&host->card_tasklet);
tasklet_kill(&host->finish_tasklet);
if (host->vmmc) {
regulator_disable(host->vmmc);
if (host->vmmc)
regulator_put(host->vmmc);
}
kfree(host->adma_desc);
kfree(host->align_buffer);

1
drivers/mmc/host/sdhci.h
View File

@ -158,6 +158,7 @@
#define SDHCI_CTRL_UHS_SDR50 0x0002
#define SDHCI_CTRL_UHS_SDR104 0x0003
#define SDHCI_CTRL_UHS_DDR50 0x0004
#define SDHCI_CTRL_HS_SDR200 0x0005 /* reserved value in SDIO spec */
#define SDHCI_CTRL_VDD_180 0x0008
#define SDHCI_CTRL_DRV_TYPE_MASK 0x0030
#define SDHCI_CTRL_DRV_TYPE_B 0x0000

716
drivers/mmc/host/sh_mmcif.c
View File

File diff suppressed because it is too large Load Diff

13
drivers/mmc/host/sh_mobile_sdhi.c
View File

@ -282,18 +282,7 @@ static struct platform_driver sh_mobile_sdhi_driver = {
.remove = __devexit_p(sh_mobile_sdhi_remove),
};
static int __init sh_mobile_sdhi_init(void)
{
return platform_driver_register(&sh_mobile_sdhi_driver);
}
static void __exit sh_mobile_sdhi_exit(void)
{
platform_driver_unregister(&sh_mobile_sdhi_driver);
}
module_init(sh_mobile_sdhi_init);
module_exit(sh_mobile_sdhi_exit);
module_platform_driver(sh_mobile_sdhi_driver);
MODULE_DESCRIPTION("SuperH Mobile SDHI driver");
MODULE_AUTHOR("Magnus Damm");

16
drivers/mmc/host/tifm_sd.c
View File

@ -118,7 +118,7 @@ static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg,
unsigned char *buf;
unsigned int pos = 0, val;
buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + off;
buf = kmap_atomic(pg) + off;
if (host->cmd_flags & DATA_CARRY) {
buf[pos++] = host->bounce_buf_data[0];
host->cmd_flags &= ~DATA_CARRY;
@ -134,7 +134,7 @@ static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg,
}
buf[pos++] = (val >> 8) & 0xff;
}
kunmap_atomic(buf - off, KM_BIO_DST_IRQ);
kunmap_atomic(buf - off);
}
static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
@ -144,7 +144,7 @@ static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
unsigned char *buf;
unsigned int pos = 0, val;
buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + off;
buf = kmap_atomic(pg) + off;
if (host->cmd_flags & DATA_CARRY) {
val = host->bounce_buf_data[0] | ((buf[pos++] << 8) & 0xff00);
writel(val, sock->addr + SOCK_MMCSD_DATA);
@ -161,7 +161,7 @@ static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
val |= (buf[pos++] << 8) & 0xff00;
writel(val, sock->addr + SOCK_MMCSD_DATA);
}
kunmap_atomic(buf - off, KM_BIO_SRC_IRQ);
kunmap_atomic(buf - off);
}
static void tifm_sd_transfer_data(struct tifm_sd *host)
@ -212,13 +212,13 @@ static void tifm_sd_copy_page(struct page *dst, unsigned int dst_off,
struct page *src, unsigned int src_off,
unsigned int count)
{
unsigned char *src_buf = kmap_atomic(src, KM_BIO_SRC_IRQ) + src_off;
unsigned char *dst_buf = kmap_atomic(dst, KM_BIO_DST_IRQ) + dst_off;
unsigned char *src_buf = kmap_atomic(src) + src_off;
unsigned char *dst_buf = kmap_atomic(dst) + dst_off;
memcpy(dst_buf, src_buf, count);
kunmap_atomic(dst_buf - dst_off, KM_BIO_DST_IRQ);
kunmap_atomic(src_buf - src_off, KM_BIO_SRC_IRQ);
kunmap_atomic(dst_buf - dst_off);
kunmap_atomic(src_buf - src_off);
}
static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data)

14
drivers/mmc/host/tmio_mmc.c
View File

@ -138,19 +138,7 @@ static struct platform_driver tmio_mmc_driver = {
.resume = tmio_mmc_resume,
};
static int __init tmio_mmc_init(void)
{
return platform_driver_register(&tmio_mmc_driver);
}
static void __exit tmio_mmc_exit(void)
{
platform_driver_unregister(&tmio_mmc_driver);
}
module_init(tmio_mmc_init);
module_exit(tmio_mmc_exit);
module_platform_driver(tmio_mmc_driver);
MODULE_DESCRIPTION("Toshiba TMIO SD/MMC driver");
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");

4
drivers/mmc/host/tmio_mmc.h
View File

@ -105,13 +105,13 @@ static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
unsigned long *flags)
{
local_irq_save(*flags);
return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
return kmap_atomic(sg_page(sg)) + sg->offset;
}
static inline void tmio_mmc_kunmap_atomic(struct scatterlist *sg,
unsigned long *flags, void *virt)
{
kunmap_atomic(virt - sg->offset, KM_BIO_SRC_IRQ);
kunmap_atomic(virt - sg->offset);
local_irq_restore(*flags);
}

30
drivers/mmc/host/tmio_mmc_pio.c
View File

@ -800,8 +800,7 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
} else if (ios->power_mode != MMC_POWER_UP) {
if (host->set_pwr && ios->power_mode == MMC_POWER_OFF)
host->set_pwr(host->pdev, 0);
if ((pdata->flags & TMIO_MMC_HAS_COLD_CD) &&
pdata->power) {
if (pdata->power) {
pdata->power = false;
pm_runtime_put(&host->pdev->dev);
}
@ -915,6 +914,23 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
if (ret < 0)
goto pm_disable;
/*
* There are 4 different scenarios for the card detection:
* 1) an external gpio irq handles the cd (best for power savings)
* 2) internal sdhi irq handles the cd
* 3) a worker thread polls the sdhi - indicated by MMC_CAP_NEEDS_POLL
* 4) the medium is non-removable - indicated by MMC_CAP_NONREMOVABLE
*
* While we increment the rtpm counter for all scenarios when the mmc
* core activates us by calling an appropriate set_ios(), we must
* additionally ensure that in case 2) the tmio mmc hardware stays
* powered on during runtime for the card detection to work.
*/
if (!(pdata->flags & TMIO_MMC_HAS_COLD_CD
|| mmc->caps & MMC_CAP_NEEDS_POLL
|| mmc->caps & MMC_CAP_NONREMOVABLE))
pm_runtime_get_noresume(&pdev->dev);
tmio_mmc_clk_stop(_host);
tmio_mmc_reset(_host);
@ -933,12 +949,6 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
/* See if we also get DMA */
tmio_mmc_request_dma(_host, pdata);
/* We have to keep the device powered for its card detection to work */
if (!(pdata->flags & TMIO_MMC_HAS_COLD_CD)) {
pdata->power = true;
pm_runtime_get_noresume(&pdev->dev);
}
mmc_add_host(mmc);
/* Unmask the IRQs we want to know about */
@ -974,7 +984,9 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
* the controller, the runtime PM is suspended and pdata->power == false,
* so, our .runtime_resume() will not try to detect a card in the slot.
*/
if (host->pdata->flags & TMIO_MMC_HAS_COLD_CD)
if (host->pdata->flags & TMIO_MMC_HAS_COLD_CD
|| host->mmc->caps & MMC_CAP_NEEDS_POLL
|| host->mmc->caps & MMC_CAP_NONREMOVABLE)
pm_runtime_get_sync(&pdev->dev);
mmc_remove_host(host->mmc);

2
include/linux/amba/mmci.h
View File

@ -30,6 +30,7 @@ struct dma_chan;
* @cd_invert: true if the gpio_cd pin value is active low
* @capabilities: the capabilities of the block as implemented in
* this platform, signify anything MMC_CAP_* from mmc/host.h
* @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h
* @dma_filter: function used to select an appropriate RX and TX
* DMA channel to be used for DMA, if and only if you're deploying the
* generic DMA engine
@ -52,6 +53,7 @@ struct mmci_platform_data {
int gpio_cd;
bool cd_invert;
unsigned long capabilities;
unsigned long capabilities2;
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
void *dma_rx_param;
void *dma_tx_param;

23
include/linux/mmc/card.h
View File

@ -71,6 +71,8 @@ struct mmc_ext_csd {
bool hpi_en; /* HPI enablebit */
bool hpi; /* HPI support bit */
unsigned int hpi_cmd; /* cmd used as HPI */
unsigned int boot_ro_lock; /* ro lock support */
bool boot_ro_lockable;
u8 raw_partition_support; /* 160 */
u8 raw_erased_mem_count; /* 181 */
u8 raw_ext_csd_structure; /* 194 */
@ -110,6 +112,7 @@ struct sd_ssr {
struct sd_switch_caps {
unsigned int hs_max_dtr;
unsigned int uhs_max_dtr;
#define HIGH_SPEED_MAX_DTR 50000000
#define UHS_SDR104_MAX_DTR 208000000
#define UHS_SDR50_MAX_DTR 100000000
#define UHS_DDR50_MAX_DTR 50000000
@ -117,11 +120,13 @@ struct sd_switch_caps {
#define UHS_SDR12_MAX_DTR 25000000
unsigned int sd3_bus_mode;
#define UHS_SDR12_BUS_SPEED 0
#define HIGH_SPEED_BUS_SPEED 1
#define UHS_SDR25_BUS_SPEED 1
#define UHS_SDR50_BUS_SPEED 2
#define UHS_SDR104_BUS_SPEED 3
#define UHS_DDR50_BUS_SPEED 4
#define SD_MODE_HIGH_SPEED (1 << HIGH_SPEED_BUS_SPEED)
#define SD_MODE_UHS_SDR12 (1 << UHS_SDR12_BUS_SPEED)
#define SD_MODE_UHS_SDR25 (1 << UHS_SDR25_BUS_SPEED)
#define SD_MODE_UHS_SDR50 (1 << UHS_SDR50_BUS_SPEED)
@ -184,6 +189,10 @@ struct mmc_part {
unsigned int part_cfg; /* partition type */
char name[MAX_MMC_PART_NAME_LEN];
bool force_ro; /* to make boot parts RO by default */
unsigned int area_type;
#define MMC_BLK_DATA_AREA_MAIN (1<<0)
#define MMC_BLK_DATA_AREA_BOOT (1<<1)
#define MMC_BLK_DATA_AREA_GP (1<<2)
};
/*
@ -206,6 +215,8 @@ struct mmc_card {
#define MMC_STATE_HIGHSPEED_DDR (1<<4) /* card is in high speed mode */
#define MMC_STATE_ULTRAHIGHSPEED (1<<5) /* card is in ultra high speed mode */
#define MMC_CARD_SDXC (1<<6) /* card is SDXC */
#define MMC_CARD_REMOVED (1<<7) /* card has been removed */
#define MMC_STATE_HIGHSPEED_200 (1<<8) /* card is in HS200 mode */
unsigned int quirks; /* card quirks */
#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
@ -261,12 +272,14 @@ struct mmc_card {
* This function fill contents in mmc_part.
*/
static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
unsigned int part_cfg, char *name, int idx, bool ro)
unsigned int part_cfg, char *name, int idx, bool ro,
int area_type)
{
card->part[card->nr_parts].size = size;
card->part[card->nr_parts].part_cfg = part_cfg;
sprintf(card->part[card->nr_parts].name, name, idx);
card->part[card->nr_parts].force_ro = ro;
card->part[card->nr_parts].area_type = area_type;
card->nr_parts++;
}
@ -362,18 +375,24 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
#define mmc_card_highspeed(c) ((c)->state & MMC_STATE_HIGHSPEED)
#define mmc_card_hs200(c) ((c)->state & MMC_STATE_HIGHSPEED_200)
#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
#define mmc_card_ddr_mode(c) ((c)->state & MMC_STATE_HIGHSPEED_DDR)
#define mmc_sd_card_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
#define mmc_card_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
#define mmc_sd_card_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED))
#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
#define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
#define mmc_card_set_hs200(c) ((c)->state |= MMC_STATE_HIGHSPEED_200)
#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
#define mmc_card_set_ddr_mode(c) ((c)->state |= MMC_STATE_HIGHSPEED_DDR)
#define mmc_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
#define mmc_sd_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
/*
* Quirk add/remove for MMC products.

19
include/linux/mmc/cd-gpio.h Normal file
View File

@ -0,0 +1,19 @@
/*
* Generic GPIO card-detect helper header
*
* Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef MMC_CD_GPIO_H
#define MMC_CD_GPIO_H
struct mmc_host;
int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
unsigned int irq, unsigned long flags);
void mmc_cd_gpio_free(struct mmc_host *host);
#endif

2
include/linux/mmc/core.h
View File

@ -180,6 +180,8 @@ extern int mmc_try_claim_host(struct mmc_host *host);
extern int mmc_flush_cache(struct mmc_card *);
extern int mmc_detect_card_removed(struct mmc_host *host);
/**
* mmc_claim_host - exclusively claim a host
* @host: mmc host to claim

1
include/linux/mmc/dw_mmc.h
View File

@ -214,6 +214,7 @@ struct dw_mci_board {
unsigned int bus_hz; /* Bus speed */
unsigned int caps; /* Capabilities */
unsigned int caps2; /* More capabilities */
/*
* Override fifo depth. If 0, autodetect it from the FIFOTH register,
* but note that this may not be reliable after a bootloader has used

25
include/linux/mmc/host.h
View File

@ -56,10 +56,13 @@ struct mmc_ios {
#define MMC_TIMING_UHS_SDR50 3
#define MMC_TIMING_UHS_SDR104 4
#define MMC_TIMING_UHS_DDR50 5
#define MMC_TIMING_MMC_HS200 6
#define MMC_SDR_MODE 0
#define MMC_1_2V_DDR_MODE 1
#define MMC_1_8V_DDR_MODE 2
#define MMC_1_2V_SDR_MODE 3
#define MMC_1_8V_SDR_MODE 4
unsigned char signal_voltage; /* signalling voltage (1.8V or 3.3V) */
@ -148,7 +151,9 @@ struct mmc_host_ops {
void (*init_card)(struct mmc_host *host, struct mmc_card *card);
int (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios);
int (*execute_tuning)(struct mmc_host *host);
/* The tuning command opcode value is different for SD and eMMC cards */
int (*execute_tuning)(struct mmc_host *host, u32 opcode);
void (*enable_preset_value)(struct mmc_host *host, bool enable);
int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv);
void (*hw_reset)(struct mmc_host *host);
@ -167,6 +172,11 @@ struct mmc_async_req {
int (*err_check) (struct mmc_card *, struct mmc_async_req *);
};
struct mmc_hotplug {
unsigned int irq;
void *handler_priv;
};
struct mmc_host {
struct device *parent;
struct device class_dev;
@ -242,6 +252,11 @@ struct mmc_host {
#define MMC_CAP2_CACHE_CTRL (1 << 1) /* Allow cache control */
#define MMC_CAP2_POWEROFF_NOTIFY (1 << 2) /* Notify poweroff supported */
#define MMC_CAP2_NO_MULTI_READ (1 << 3) /* Multiblock reads don't work */
#define MMC_CAP2_NO_SLEEP_CMD (1 << 4) /* Don't allow sleep command */
#define MMC_CAP2_HS200_1_8V_SDR (1 << 5) /* can support */
#define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */
#define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \
MMC_CAP2_HS200_1_2V_SDR)
mmc_pm_flag_t pm_caps; /* supported pm features */
unsigned int power_notify_type;
@ -253,10 +268,12 @@ struct mmc_host {
int clk_requests; /* internal reference counter */
unsigned int clk_delay; /* number of MCI clk hold cycles */
bool clk_gated; /* clock gated */
struct work_struct clk_gate_work; /* delayed clock gate */
struct delayed_work clk_gate_work; /* delayed clock gate */
unsigned int clk_old; /* old clock value cache */
spinlock_t clk_lock; /* lock for clk fields */
struct mutex clk_gate_mutex; /* mutex for clock gating */
struct device_attribute clkgate_delay_attr;
unsigned long clkgate_delay;
#endif
/* host specific block data */
@ -297,6 +314,8 @@ struct mmc_host {
int claim_cnt; /* "claim" nesting count */
struct delayed_work detect;
int detect_change; /* card detect flag */
struct mmc_hotplug hotplug;
const struct mmc_bus_ops *bus_ops; /* current bus driver */
unsigned int bus_refs; /* reference counter */
@ -323,6 +342,8 @@ struct mmc_host {
struct fault_attr fail_mmc_request;
#endif
unsigned int actual_clock; /* Actual HC clock rate */
unsigned long private[0] ____cacheline_aligned;
};

72
include/linux/mmc/mmc.h
View File

@ -51,6 +51,7 @@
#define MMC_READ_SINGLE_BLOCK 17 /* adtc [31:0] data addr R1 */
#define MMC_READ_MULTIPLE_BLOCK 18 /* adtc [31:0] data addr R1 */
#define MMC_SEND_TUNING_BLOCK 19 /* adtc R1 */
#define MMC_SEND_TUNING_BLOCK_HS200 21 /* adtc R1 */
/* class 3 */
#define MMC_WRITE_DAT_UNTIL_STOP 20 /* adtc [31:0] data addr R1 */
@ -280,6 +281,7 @@ struct _mmc_csd {
#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
#define EXT_CSD_SANITIZE_START 165 /* W */
#define EXT_CSD_WR_REL_PARAM 166 /* RO */
#define EXT_CSD_BOOT_WP 173 /* R/W */
#define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
#define EXT_CSD_PART_CONFIG 179 /* R/W */
#define EXT_CSD_ERASED_MEM_CONT 181 /* RO */
@ -321,6 +323,11 @@ struct _mmc_csd {
#define EXT_CSD_WR_REL_PARAM_EN (1<<2)
#define EXT_CSD_BOOT_WP_B_PWR_WP_DIS (0x40)
#define EXT_CSD_BOOT_WP_B_PERM_WP_DIS (0x10)
#define EXT_CSD_BOOT_WP_B_PERM_WP_EN (0x04)
#define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01)
#define EXT_CSD_PART_CONFIG_ACC_MASK (0x7)
#define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1)
#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4)
@ -333,13 +340,76 @@ struct _mmc_csd {
#define EXT_CSD_CARD_TYPE_26 (1<<0) /* Card can run at 26MHz */
#define EXT_CSD_CARD_TYPE_52 (1<<1) /* Card can run at 52MHz */
#define EXT_CSD_CARD_TYPE_MASK 0xF /* Mask out reserved bits */
#define EXT_CSD_CARD_TYPE_MASK 0x3F /* Mask out reserved bits */
#define EXT_CSD_CARD_TYPE_DDR_1_8V (1<<2) /* Card can run at 52MHz */
/* DDR mode @1.8V or 3V I/O */
#define EXT_CSD_CARD_TYPE_DDR_1_2V (1<<3) /* Card can run at 52MHz */
/* DDR mode @1.2V I/O */
#define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \
| EXT_CSD_CARD_TYPE_DDR_1_2V)
#define EXT_CSD_CARD_TYPE_SDR_1_8V (1<<4) /* Card can run at 200MHz */
#define EXT_CSD_CARD_TYPE_SDR_1_2V (1<<5) /* Card can run at 200MHz */
/* SDR mode @1.2V I/O */
#define EXT_CSD_CARD_TYPE_SDR_200 (EXT_CSD_CARD_TYPE_SDR_1_8V | \
EXT_CSD_CARD_TYPE_SDR_1_2V)
#define EXT_CSD_CARD_TYPE_SDR_ALL (EXT_CSD_CARD_TYPE_SDR_200 | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_2V_ALL (EXT_CSD_CARD_TYPE_SDR_1_2V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_8V_ALL (EXT_CSD_CARD_TYPE_SDR_1_8V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_1_8V (EXT_CSD_CARD_TYPE_SDR_1_2V | \
EXT_CSD_CARD_TYPE_DDR_1_8V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_1_8V (EXT_CSD_CARD_TYPE_SDR_1_8V | \
EXT_CSD_CARD_TYPE_DDR_1_8V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_1_2V (EXT_CSD_CARD_TYPE_SDR_1_2V | \
EXT_CSD_CARD_TYPE_DDR_1_2V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_1_2V (EXT_CSD_CARD_TYPE_SDR_1_8V | \
EXT_CSD_CARD_TYPE_DDR_1_2V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_2V_DDR_52 (EXT_CSD_CARD_TYPE_SDR_1_2V | \
EXT_CSD_CARD_TYPE_DDR_52 | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_1_8V_DDR_52 (EXT_CSD_CARD_TYPE_SDR_1_8V | \
EXT_CSD_CARD_TYPE_DDR_52 | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_ALL_DDR_1_8V (EXT_CSD_CARD_TYPE_SDR_200 | \
EXT_CSD_CARD_TYPE_DDR_1_8V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_ALL_DDR_1_2V (EXT_CSD_CARD_TYPE_SDR_200 | \
EXT_CSD_CARD_TYPE_DDR_1_2V | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_CARD_TYPE_SDR_ALL_DDR_52 (EXT_CSD_CARD_TYPE_SDR_200 | \
EXT_CSD_CARD_TYPE_DDR_52 | \
EXT_CSD_CARD_TYPE_52 | \
EXT_CSD_CARD_TYPE_26)
#define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
#define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */

18
include/linux/mmc/sdhci-pci-data.h Normal file
View File

@ -0,0 +1,18 @@
#ifndef LINUX_MMC_SDHCI_PCI_DATA_H
#define LINUX_MMC_SDHCI_PCI_DATA_H
struct pci_dev;
struct sdhci_pci_data {
struct pci_dev *pdev;
int slotno;
int rst_n_gpio; /* Set to -EINVAL if unused */
int cd_gpio; /* Set to -EINVAL if unused */
int (*setup)(struct sdhci_pci_data *data);
void (*cleanup)(struct sdhci_pci_data *data);
};
extern struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev,
int slotno);
#endif

3
include/linux/mmc/sdhci.h
View File

@ -90,8 +90,6 @@ struct sdhci_host {
unsigned int quirks2; /* More deviations from spec. */
#define SDHCI_QUIRK2_OWN_CARD_DETECTION (1<<0)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
@ -121,6 +119,7 @@ struct sdhci_host {
#define SDHCI_AUTO_CMD23 (1<<7) /* Auto CMD23 support */
#define SDHCI_PV_ENABLED (1<<8) /* Preset value enabled */
#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */
#define SDHCI_HS200_NEEDS_TUNING (1<<10) /* HS200 needs tuning */
unsigned int version; /* SDHCI spec. version */

27
include/linux/mmc/sdio.h
View File

@ -38,6 +38,7 @@
* [8:0] Byte/block count
*/
#define R4_18V_PRESENT (1<<24)
#define R4_MEMORY_PRESENT (1 << 27)
/*
@ -85,6 +86,7 @@
#define SDIO_SD_REV_1_01 0 /* SD Physical Spec Version 1.01 */
#define SDIO_SD_REV_1_10 1 /* SD Physical Spec Version 1.10 */
#define SDIO_SD_REV_2_00 2 /* SD Physical Spec Version 2.00 */
#define SDIO_SD_REV_3_00 3 /* SD Physical Spev Version 3.00 */
#define SDIO_CCCR_IOEx 0x02
#define SDIO_CCCR_IORx 0x03
@ -134,8 +136,31 @@
#define SDIO_CCCR_SPEED 0x13
#define SDIO_SPEED_SHS 0x01 /* Supports High-Speed mode */
#define SDIO_SPEED_EHS 0x02 /* Enable High-Speed mode */
#define SDIO_SPEED_BSS_SHIFT 1
#define SDIO_SPEED_BSS_MASK (7<<SDIO_SPEED_BSS_SHIFT)
#define SDIO_SPEED_SDR12 (0<<SDIO_SPEED_BSS_SHIFT)
#define SDIO_SPEED_SDR25 (1<<SDIO_SPEED_BSS_SHIFT)
#define SDIO_SPEED_SDR50 (2<<SDIO_SPEED_BSS_SHIFT)
#define SDIO_SPEED_SDR104 (3<<SDIO_SPEED_BSS_SHIFT)
#define SDIO_SPEED_DDR50 (4<<SDIO_SPEED_BSS_SHIFT)
#define SDIO_SPEED_EHS SDIO_SPEED_SDR25 /* Enable High-Speed */
#define SDIO_CCCR_UHS 0x14
#define SDIO_UHS_SDR50 0x01
#define SDIO_UHS_SDR104 0x02
#define SDIO_UHS_DDR50 0x04
#define SDIO_CCCR_DRIVE_STRENGTH 0x15
#define SDIO_SDTx_MASK 0x07
#define SDIO_DRIVE_SDTA (1<<0)
#define SDIO_DRIVE_SDTC (1<<1)
#define SDIO_DRIVE_SDTD (1<<2)
#define SDIO_DRIVE_DTSx_MASK 0x03
#define SDIO_DRIVE_DTSx_SHIFT 4
#define SDIO_DTSx_SET_TYPE_B (0 << SDIO_DRIVE_DTSx_SHIFT)
#define SDIO_DTSx_SET_TYPE_A (1 << SDIO_DRIVE_DTSx_SHIFT)
#define SDIO_DTSx_SET_TYPE_C (2 << SDIO_DRIVE_DTSx_SHIFT)
#define SDIO_DTSx_SET_TYPE_D (3 << SDIO_DRIVE_DTSx_SHIFT)
/*
* Function Basic Registers (FBR)
*/