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Diffstat (limited to 'drivers/mmc/core')
-rw-r--r--drivers/mmc/core/block.c2
-rw-r--r--drivers/mmc/core/bus.c12
-rw-r--r--drivers/mmc/core/core.c10
-rw-r--r--drivers/mmc/core/host.c26
-rw-r--r--drivers/mmc/core/mmc.c22
-rw-r--r--drivers/mmc/core/mmc_test.c8
-rw-r--r--drivers/mmc/core/queue.c5
-rw-r--r--drivers/mmc/core/sd.c38
-rw-r--r--drivers/mmc/core/sdio.c24
-rw-r--r--drivers/mmc/core/sdio_bus.c54
-rw-r--r--drivers/mmc/core/sdio_cis.c11
11 files changed, 176 insertions, 36 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index fa313b634135..8d3df0be0355 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -723,7 +723,7 @@ static int mmc_blk_check_blkdev(struct block_device *bdev)
* whole block device, not on a partition. This prevents overspray
* between sibling partitions.
*/
- if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains))
+ if (!capable(CAP_SYS_RAWIO) || bdev_is_partition(bdev))
return -EPERM;
return 0;
}
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 70207f11a654..c2e70b757dd1 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -68,6 +68,7 @@ mmc_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct mmc_card *card = mmc_dev_to_card(dev);
const char *type;
+ unsigned int i;
int retval = 0;
switch (card->type) {
@@ -98,6 +99,17 @@ mmc_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
card->cis.vendor, card->cis.device);
if (retval)
return retval;
+
+ retval = add_uevent_var(env, "SDIO_REVISION=%u.%u",
+ card->major_rev, card->minor_rev);
+ if (retval)
+ return retval;
+
+ for (i = 0; i < card->num_info; i++) {
+ retval = add_uevent_var(env, "SDIO_INFO%u=%s", i+1, card->info[i]);
+ if (retval)
+ return retval;
+ }
}
/*
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 8ccae6452b9c..d42037f0f10d 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2063,6 +2063,16 @@ static void mmc_hw_reset_for_init(struct mmc_host *host)
host->ops->hw_reset(host);
}
+/**
+ * mmc_hw_reset - reset the card in hardware
+ * @host: MMC host to which the card is attached
+ *
+ * Hard reset the card. This function is only for upper layers, like the
+ * block layer or card drivers. You cannot use it in host drivers (struct
+ * mmc_card might be gone then).
+ *
+ * Return: 0 on success, -errno on failure
+ */
int mmc_hw_reset(struct mmc_host *host)
{
int ret;
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index c8fae6611b73..96b2ca1f1b06 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -377,6 +377,20 @@ int mmc_of_parse_voltage(struct device_node *np, u32 *mask)
EXPORT_SYMBOL(mmc_of_parse_voltage);
/**
+ * mmc_first_nonreserved_index() - get the first index that is not reserved
+ */
+static int mmc_first_nonreserved_index(void)
+{
+ int max;
+
+ max = of_alias_get_highest_id("mmc");
+ if (max < 0)
+ return 0;
+
+ return max + 1;
+}
+
+/**
* mmc_alloc_host - initialise the per-host structure.
* @extra: sizeof private data structure
* @dev: pointer to host device model structure
@@ -387,6 +401,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
{
int err;
struct mmc_host *host;
+ int alias_id, min_idx, max_idx;
host = kzalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL);
if (!host)
@@ -395,7 +410,16 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
/* scanning will be enabled when we're ready */
host->rescan_disable = 1;
- err = ida_simple_get(&mmc_host_ida, 0, 0, GFP_KERNEL);
+ alias_id = of_alias_get_id(dev->of_node, "mmc");
+ if (alias_id >= 0) {
+ min_idx = alias_id;
+ max_idx = alias_id + 1;
+ } else {
+ min_idx = mmc_first_nonreserved_index();
+ max_idx = 0;
+ }
+
+ err = ida_simple_get(&mmc_host_ida, min_idx, max_idx, GFP_KERNEL);
if (err < 0) {
kfree(host);
return NULL;
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index b3fa193de846..ff3063ce2acd 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1168,13 +1168,13 @@ static int mmc_select_hs400(struct mmc_card *card)
return err;
}
- /* Set host controller to HS timing */
- mmc_set_timing(card->host, MMC_TIMING_MMC_HS);
-
/* Prepare host to downgrade to HS timing */
if (host->ops->hs400_downgrade)
host->ops->hs400_downgrade(host);
+ /* Set host controller to HS timing */
+ mmc_set_timing(host, MMC_TIMING_MMC_HS);
+
/* Reduce frequency to HS frequency */
max_dtr = card->ext_csd.hs_max_dtr;
mmc_set_clock(host, max_dtr);
@@ -1253,6 +1253,9 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
if (err)
goto out_err;
+ if (host->ops->hs400_downgrade)
+ host->ops->hs400_downgrade(host);
+
mmc_set_timing(host, MMC_TIMING_MMC_DDR52);
err = mmc_switch_status(card, true);
@@ -1268,9 +1271,6 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
mmc_set_timing(host, MMC_TIMING_MMC_HS);
- if (host->ops->hs400_downgrade)
- host->ops->hs400_downgrade(host);
-
err = mmc_switch_status(card, true);
if (err)
goto out_err;
@@ -1763,13 +1763,17 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
goto free_card;
if (mmc_card_hs200(card)) {
+ host->doing_init_tune = 1;
+
err = mmc_hs200_tuning(card);
- if (err)
- goto free_card;
+ if (!err)
+ err = mmc_select_hs400(card);
+
+ host->doing_init_tune = 0;
- err = mmc_select_hs400(card);
if (err)
goto free_card;
+
} else if (!mmc_card_hs400es(card)) {
/* Select the desired bus width optionally */
err = mmc_select_bus_width(card);
diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
index c21b3cb71775..152e7525ed33 100644
--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -2669,22 +2669,22 @@ static const struct mmc_test_case mmc_test_cases[] = {
},
{
- .name = "Correct xfer_size at write (start failure)",
+ .name = "Proper xfer_size at write (start failure)",
.run = mmc_test_xfersize_write,
},
{
- .name = "Correct xfer_size at read (start failure)",
+ .name = "Proper xfer_size at read (start failure)",
.run = mmc_test_xfersize_read,
},
{
- .name = "Correct xfer_size at write (midway failure)",
+ .name = "Proper xfer_size at write (midway failure)",
.run = mmc_test_multi_xfersize_write,
},
{
- .name = "Correct xfer_size at read (midway failure)",
+ .name = "Proper xfer_size at read (midway failure)",
.run = mmc_test_multi_xfersize_read,
},
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index 6c022ef0f84d..de7cb0369c30 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -190,7 +190,7 @@ static void mmc_queue_setup_discard(struct request_queue *q,
q->limits.discard_granularity = card->pref_erase << 9;
/* granularity must not be greater than max. discard */
if (card->pref_erase > max_discard)
- q->limits.discard_granularity = 0;
+ q->limits.discard_granularity = SECTOR_SIZE;
if (mmc_can_secure_erase_trim(card))
blk_queue_flag_set(QUEUE_FLAG_SECERASE, q);
}
@@ -472,8 +472,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card)
}
if (mmc_host_is_spi(host) && host->use_spi_crc)
- mq->queue->backing_dev_info->capabilities |=
- BDI_CAP_STABLE_WRITES;
+ blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, mq->queue);
mq->queue->queuedata = mq;
blk_queue_rq_timeout(mq->queue, 60 * HZ);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 5a2210c25aa7..6f054c449d46 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -709,10 +709,34 @@ static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL);
MMC_DEV_ATTR(vendor, "0x%04x\n", card->cis.vendor);
MMC_DEV_ATTR(device, "0x%04x\n", card->cis.device);
+MMC_DEV_ATTR(revision, "%u.%u\n", card->major_rev, card->minor_rev);
+
+#define sdio_info_attr(num) \
+static ssize_t info##num##_show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct mmc_card *card = mmc_dev_to_card(dev); \
+ \
+ if (num > card->num_info) \
+ return -ENODATA; \
+ if (!card->info[num-1][0]) \
+ return 0; \
+ return sprintf(buf, "%s\n", card->info[num-1]); \
+} \
+static DEVICE_ATTR_RO(info##num)
+
+sdio_info_attr(1);
+sdio_info_attr(2);
+sdio_info_attr(3);
+sdio_info_attr(4);
static struct attribute *sd_std_attrs[] = {
&dev_attr_vendor.attr,
&dev_attr_device.attr,
+ &dev_attr_revision.attr,
+ &dev_attr_info1.attr,
+ &dev_attr_info2.attr,
+ &dev_attr_info3.attr,
+ &dev_attr_info4.attr,
&dev_attr_cid.attr,
&dev_attr_csd.attr,
&dev_attr_scr.attr,
@@ -735,12 +759,18 @@ static struct attribute *sd_std_attrs[] = {
static umode_t sd_std_is_visible(struct kobject *kobj, struct attribute *attr,
int index)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev = kobj_to_dev(kobj);
struct mmc_card *card = mmc_dev_to_card(dev);
- /* CIS vendor and device ids are available only for Combo cards */
- if ((attr == &dev_attr_vendor.attr || attr == &dev_attr_device.attr) &&
- card->type != MMC_TYPE_SD_COMBO)
+ /* CIS vendor and device ids, revision and info string are available only for Combo cards */
+ if ((attr == &dev_attr_vendor.attr ||
+ attr == &dev_attr_device.attr ||
+ attr == &dev_attr_revision.attr ||
+ attr == &dev_attr_info1.attr ||
+ attr == &dev_attr_info2.attr ||
+ attr == &dev_attr_info3.attr ||
+ attr == &dev_attr_info4.attr
+ ) && card->type != MMC_TYPE_SD_COMBO)
return 0;
return attr->mode;
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 7b40553d3934..694a212cbe25 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -29,12 +29,36 @@
MMC_DEV_ATTR(vendor, "0x%04x\n", card->cis.vendor);
MMC_DEV_ATTR(device, "0x%04x\n", card->cis.device);
+MMC_DEV_ATTR(revision, "%u.%u\n", card->major_rev, card->minor_rev);
MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr);
MMC_DEV_ATTR(rca, "0x%04x\n", card->rca);
+#define sdio_info_attr(num) \
+static ssize_t info##num##_show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct mmc_card *card = mmc_dev_to_card(dev); \
+ \
+ if (num > card->num_info) \
+ return -ENODATA; \
+ if (!card->info[num-1][0]) \
+ return 0; \
+ return sprintf(buf, "%s\n", card->info[num-1]); \
+} \
+static DEVICE_ATTR_RO(info##num)
+
+sdio_info_attr(1);
+sdio_info_attr(2);
+sdio_info_attr(3);
+sdio_info_attr(4);
+
static struct attribute *sdio_std_attrs[] = {
&dev_attr_vendor.attr,
&dev_attr_device.attr,
+ &dev_attr_revision.attr,
+ &dev_attr_info1.attr,
+ &dev_attr_info2.attr,
+ &dev_attr_info3.attr,
+ &dev_attr_info4.attr,
&dev_attr_ocr.attr,
&dev_attr_rca.attr,
NULL,
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index 3cc928282af7..3d709029e07c 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -28,34 +28,50 @@
#define to_sdio_driver(d) container_of(d, struct sdio_driver, drv)
/* show configuration fields */
-#define sdio_config_attr(field, format_string) \
+#define sdio_config_attr(field, format_string, args...) \
static ssize_t \
field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct sdio_func *func; \
\
func = dev_to_sdio_func (dev); \
- return sprintf (buf, format_string, func->field); \
+ return sprintf(buf, format_string, args); \
} \
static DEVICE_ATTR_RO(field)
-sdio_config_attr(class, "0x%02x\n");
-sdio_config_attr(vendor, "0x%04x\n");
-sdio_config_attr(device, "0x%04x\n");
-
-static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct sdio_func *func = dev_to_sdio_func (dev);
-
- return sprintf(buf, "sdio:c%02Xv%04Xd%04X\n",
- func->class, func->vendor, func->device);
-}
-static DEVICE_ATTR_RO(modalias);
+sdio_config_attr(class, "0x%02x\n", func->class);
+sdio_config_attr(vendor, "0x%04x\n", func->vendor);
+sdio_config_attr(device, "0x%04x\n", func->device);
+sdio_config_attr(revision, "%u.%u\n", func->major_rev, func->minor_rev);
+sdio_config_attr(modalias, "sdio:c%02Xv%04Xd%04X\n", func->class, func->vendor, func->device);
+
+#define sdio_info_attr(num) \
+static ssize_t info##num##_show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct sdio_func *func = dev_to_sdio_func(dev); \
+ \
+ if (num > func->num_info) \
+ return -ENODATA; \
+ if (!func->info[num-1][0]) \
+ return 0; \
+ return sprintf(buf, "%s\n", func->info[num-1]); \
+} \
+static DEVICE_ATTR_RO(info##num)
+
+sdio_info_attr(1);
+sdio_info_attr(2);
+sdio_info_attr(3);
+sdio_info_attr(4);
static struct attribute *sdio_dev_attrs[] = {
&dev_attr_class.attr,
&dev_attr_vendor.attr,
&dev_attr_device.attr,
+ &dev_attr_revision.attr,
+ &dev_attr_info1.attr,
+ &dev_attr_info2.attr,
+ &dev_attr_info3.attr,
+ &dev_attr_info4.attr,
&dev_attr_modalias.attr,
NULL,
};
@@ -106,6 +122,7 @@ static int
sdio_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct sdio_func *func = dev_to_sdio_func(dev);
+ unsigned int i;
if (add_uevent_var(env,
"SDIO_CLASS=%02X", func->class))
@@ -116,6 +133,15 @@ sdio_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
return -ENOMEM;
if (add_uevent_var(env,
+ "SDIO_REVISION=%u.%u", func->major_rev, func->minor_rev))
+ return -ENOMEM;
+
+ for (i = 0; i < func->num_info; i++) {
+ if (add_uevent_var(env, "SDIO_INFO%u=%s", i+1, func->info[i]))
+ return -ENOMEM;
+ }
+
+ if (add_uevent_var(env,
"MODALIAS=sdio:c%02Xv%04Xd%04X",
func->class, func->vendor, func->device))
return -ENOMEM;
diff --git a/drivers/mmc/core/sdio_cis.c b/drivers/mmc/core/sdio_cis.c
index e0655278c5c3..44bea5e4aeda 100644
--- a/drivers/mmc/core/sdio_cis.c
+++ b/drivers/mmc/core/sdio_cis.c
@@ -23,9 +23,16 @@
static int cistpl_vers_1(struct mmc_card *card, struct sdio_func *func,
const unsigned char *buf, unsigned size)
{
+ u8 major_rev, minor_rev;
unsigned i, nr_strings;
char **buffer, *string;
+ if (size < 2)
+ return 0;
+
+ major_rev = buf[0];
+ minor_rev = buf[1];
+
/* Find all null-terminated (including zero length) strings in
the TPLLV1_INFO field. Trailing garbage is ignored. */
buf += 2;
@@ -57,9 +64,13 @@ static int cistpl_vers_1(struct mmc_card *card, struct sdio_func *func,
}
if (func) {
+ func->major_rev = major_rev;
+ func->minor_rev = minor_rev;
func->num_info = nr_strings;
func->info = (const char**)buffer;
} else {
+ card->major_rev = major_rev;
+ card->minor_rev = minor_rev;
card->num_info = nr_strings;
card->info = (const char**)buffer;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-18 17:42:08 +0300