Merge tag 'mmc-merge-for-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
Core:
* Support for MMC 4.5 Data Tag feature -- we tag REQ_META, so devices
that support Data Tag will provide increased throughput for metadata.
* Faster detection of card removal on I/O errors.
Drivers:
* dw_mmc now supports eMMC Power Off Notify, has PCI support, and
implements pre_req and post_req for asynchronous requests.
* omap_hsmmc now supports device tree.
* esdhc now has power management support.
* sdhci-tegra now supports Tegra30 devices.
* sdhci-spear now supports hibernation.
* tmio_mmc now supports using a GPIO for card detection.
* Intel PCH now supports 8-bit bus transfers.
* tag 'mmc-merge-for-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (53 commits)
mmc: sh_mmcif: simplify bitmask macros
mmc: sh_mobile_sdhi: support modular mmc-core with non-standard hotplug
mmc: sh_mobile_sdhi: add a callback for board specific init code
mmc: tmio: cosmetic: prettify the tmio_mmc_set_ios() function
mmc: sh_mobile_sdhi: do not manage PM clocks manually
mmc: tmio_mmc: remove unused sdio_irq_enabled flag
mmc: tmio_mmc: power status flag doesn't have to be exposed in platform data
mmc: sh_mobile_sdhi: pass card hotplug GPIO number to TMIO MMC
mmc: tmio_mmc: support the generic MMC GPIO card hotplug helper
mmc: tmio: calculate the native hotplug condition only once
mmc: simplify mmc_cd_gpio_request() by removing two parameters
mmc: sdhci-pci: allow 8-bit bus width for Intel PCH
mmc: sdhci: check interrupt flags in ISR again
mmc: sdhci-pci: Add MSI support
mmc: core: warn when card doesn't support HPI
mmc: davinci: Poll status for small size transfers
mmc: davinci: Eliminate spurious interrupts
mmc: omap_hsmmc: Avoid a regulator voltage change with dt
mmc: omap_hsmmc: Convert hsmmc driver to use device tree
mmc: sdhci-pci: add SDHCI_QUIRK2_HOST_OFF_CARD_ON for Medfield SDIO
...
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
new file mode 100644
index 0000000..dbd4368
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -0,0 +1,33 @@
+* TI Highspeed MMC host controller for OMAP
+
+The Highspeed MMC Host Controller on TI OMAP family
+provides an interface for MMC, SD, and SDIO types of memory cards.
+
+Required properties:
+- compatible:
+ Should be "ti,omap2-hsmmc", for OMAP2 controllers
+ Should be "ti,omap3-hsmmc", for OMAP3 controllers
+ Should be "ti,omap4-hsmmc", for OMAP4 controllers
+- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
+- reg : should contain hsmmc registers location and length
+
+Optional properties:
+ti,dual-volt: boolean, supports dual voltage cards
+<supply-name>-supply: phandle to the regulator device tree node
+"supply-name" examples are "vmmc", "vmmc_aux" etc
+ti,bus-width: Number of data lines, default assumed is 1 if the property is missing.
+cd-gpios: GPIOs for card detection
+wp-gpios: GPIOs for write protection
+ti,non-removable: non-removable slot (like eMMC)
+ti,needs-special-reset: Requires a special softreset sequence
+
+Example:
+ mmc1: mmc@0x4809c000 {
+ compatible = "ti,omap4-hsmmc";
+ reg = <0x4809c000 0x400>;
+ ti,hwmods = "mmc1";
+ ti,dual-volt;
+ ti,bus-width = <4>;
+ vmmc-supply = <&vmmc>; /* phandle to regulator node */
+ ti,non-removable;
+ };
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 82ea6fc..b3982c8 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -111,7 +111,7 @@
.max_width = 8,
.host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE | MMC_CAP_ERASE),
+ MMC_CAP_ERASE),
.cd_type = S3C_SDHCI_CD_PERMANENT,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
};
@@ -150,8 +150,7 @@
static struct s3c_sdhci_platdata nuri_hsmmc2_data __initdata = {
.max_width = 4,
.host_caps = MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE,
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.ext_cd_gpio = EXYNOS4_GPX3(3), /* XEINT_27 */
.ext_cd_gpio_invert = 1,
.cd_type = S3C_SDHCI_CD_GPIO,
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 28658da..6bb9dbd 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -745,8 +745,7 @@
static struct s3c_sdhci_platdata universal_hsmmc0_data __initdata = {
.max_width = 8,
.host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE),
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
.cd_type = S3C_SDHCI_CD_PERMANENT,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
};
@@ -784,8 +783,7 @@
static struct s3c_sdhci_platdata universal_hsmmc2_data __initdata = {
.max_width = 4,
.host_caps = MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE,
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.ext_cd_gpio = EXYNOS4_GPX3(4), /* XEINT_28 */
.ext_cd_gpio_invert = 1,
.cd_type = S3C_SDHCI_CD_GPIO,
@@ -796,8 +794,7 @@
static struct s3c_sdhci_platdata universal_hsmmc3_data __initdata = {
.max_width = 4,
.host_caps = MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE,
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.cd_type = S3C_SDHCI_CD_EXTERNAL,
};
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 8121720..100db62 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -316,6 +316,7 @@
mmc->slots[0].pm_caps = c->pm_caps;
mmc->slots[0].internal_clock = !c->ext_clock;
mmc->dma_mask = 0xffffffff;
+ mmc->max_freq = c->max_freq;
if (cpu_is_omap44xx())
mmc->reg_offset = OMAP4_MMC_REG_OFFSET;
else
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 07831cc..7f2e790 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -27,6 +27,8 @@
char *name; /* or NULL for default */
struct platform_device *pdev; /* mmc controller instance */
int ocr_mask; /* temporary HACK */
+ int max_freq; /* maximum clock, if constrained by external
+ * circuitry, or 0 for default */
/* Remux (pad configuration) when powering on/off */
void (*remux)(struct device *dev, int slot, int power_on);
/* init some special card */
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h
index f75946c..7a38750 100644
--- a/arch/arm/plat-omap/include/plat/mmc.h
+++ b/arch/arm/plat-omap/include/plat/mmc.h
@@ -137,8 +137,6 @@
int (*set_power)(struct device *dev, int slot,
int power_on, int vdd);
int (*get_ro)(struct device *dev, int slot);
- int (*set_sleep)(struct device *dev, int slot, int sleep,
- int vdd, int cardsleep);
void (*remux)(struct device *dev, int slot, int power_on);
/* Call back before enabling / disabling regulators */
void (*before_set_reg)(struct device *dev, int slot,
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 4c3b284..eed213a 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1079,6 +1079,7 @@
struct mmc_blk_request *brq = &mqrq->brq;
struct request *req = mqrq->req;
struct mmc_blk_data *md = mq->data;
+ bool do_data_tag;
/*
* Reliable writes are used to implement Forced Unit Access and
@@ -1155,6 +1156,16 @@
mmc_apply_rel_rw(brq, card, req);
/*
+ * Data tag is used only during writing meta data to speed
+ * up write and any subsequent read of this meta data
+ */
+ do_data_tag = (card->ext_csd.data_tag_unit_size) &&
+ (req->cmd_flags & REQ_META) &&
+ (rq_data_dir(req) == WRITE) &&
+ ((brq->data.blocks * brq->data.blksz) >=
+ card->ext_csd.data_tag_unit_size);
+
+ /*
* Pre-defined multi-block transfers are preferable to
* open ended-ones (and necessary for reliable writes).
* However, it is not sufficient to just send CMD23,
@@ -1172,13 +1183,13 @@
* We'll avoid using CMD23-bounded multiblock writes for
* these, while retaining features like reliable writes.
*/
-
- if ((md->flags & MMC_BLK_CMD23) &&
- mmc_op_multi(brq->cmd.opcode) &&
- (do_rel_wr || !(card->quirks & MMC_QUIRK_BLK_NO_CMD23))) {
+ if ((md->flags & MMC_BLK_CMD23) && mmc_op_multi(brq->cmd.opcode) &&
+ (do_rel_wr || !(card->quirks & MMC_QUIRK_BLK_NO_CMD23) ||
+ do_data_tag)) {
brq->sbc.opcode = MMC_SET_BLOCK_COUNT;
brq->sbc.arg = brq->data.blocks |
- (do_rel_wr ? (1 << 31) : 0);
+ (do_rel_wr ? (1 << 31) : 0) |
+ (do_data_tag ? (1 << 29) : 0);
brq->sbc.flags = MMC_RSP_R1 | MMC_CMD_AC;
brq->mrq.sbc = &brq->sbc;
}
diff --git a/drivers/mmc/core/cd-gpio.c b/drivers/mmc/core/cd-gpio.c
index 082202a..29de31e 100644
--- a/drivers/mmc/core/cd-gpio.c
+++ b/drivers/mmc/core/cd-gpio.c
@@ -28,13 +28,17 @@
return IRQ_HANDLED;
}
-int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
- unsigned int irq, unsigned long flags)
+int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio)
{
size_t len = strlen(dev_name(host->parent)) + 4;
- struct mmc_cd_gpio *cd = kmalloc(sizeof(*cd) + len, GFP_KERNEL);
+ struct mmc_cd_gpio *cd;
+ int irq = gpio_to_irq(gpio);
int ret;
+ if (irq < 0)
+ return irq;
+
+ cd = kmalloc(sizeof(*cd) + len, GFP_KERNEL);
if (!cd)
return -ENOMEM;
@@ -45,7 +49,8 @@
goto egpioreq;
ret = request_threaded_irq(irq, NULL, mmc_cd_gpio_irqt,
- flags, cd->label, host);
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ cd->label, host);
if (ret < 0)
goto eirqreq;
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 132378b..14f262e 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -188,6 +188,12 @@
struct scatterlist *sg;
#endif
+ if (mrq->sbc) {
+ pr_debug("<%s: starting CMD%u arg %08x flags %08x>\n",
+ mmc_hostname(host), mrq->sbc->opcode,
+ mrq->sbc->arg, mrq->sbc->flags);
+ }
+
pr_debug("%s: starting CMD%u arg %08x flags %08x\n",
mmc_hostname(host), mrq->cmd->opcode,
mrq->cmd->arg, mrq->cmd->flags);
@@ -243,16 +249,17 @@
complete(&mrq->completion);
}
-static void __mmc_start_req(struct mmc_host *host, struct mmc_request *mrq)
+static int __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;
+ return -ENOMEDIUM;
}
mmc_start_request(host, mrq);
+ return 0;
}
static void mmc_wait_for_req_done(struct mmc_host *host,
@@ -336,6 +343,7 @@
struct mmc_async_req *areq, int *error)
{
int err = 0;
+ int start_err = 0;
struct mmc_async_req *data = host->areq;
/* Prepare a new request */
@@ -345,30 +353,23 @@
if (host->areq) {
mmc_wait_for_req_done(host, host->areq->mrq);
err = host->areq->err_check(host->card, host->areq);
- if (err) {
- /* post process the completed failed request */
- mmc_post_req(host, host->areq->mrq, 0);
- if (areq)
- /*
- * Cancel the new prepared request, because
- * it can't run until the failed
- * request has been properly handled.
- */
- mmc_post_req(host, areq->mrq, -EINVAL);
-
- host->areq = NULL;
- goto out;
- }
}
- if (areq)
- __mmc_start_req(host, areq->mrq);
+ if (!err && areq)
+ start_err = __mmc_start_req(host, areq->mrq);
if (host->areq)
mmc_post_req(host, host->areq->mrq, 0);
- host->areq = areq;
- out:
+ /* Cancel a prepared request if it was not started. */
+ if ((err || start_err) && areq)
+ mmc_post_req(host, areq->mrq, -EINVAL);
+
+ if (err)
+ host->areq = NULL;
+ else
+ host->areq = areq;
+
if (error)
*error = err;
return data;
@@ -599,105 +600,6 @@
EXPORT_SYMBOL(mmc_align_data_size);
/**
- * mmc_host_enable - enable a host.
- * @host: mmc host to enable
- *
- * Hosts that support power saving can use the 'enable' and 'disable'
- * methods to exit and enter power saving states. For more information
- * see comments for struct mmc_host_ops.
- */
-int mmc_host_enable(struct mmc_host *host)
-{
- if (!(host->caps & MMC_CAP_DISABLE))
- return 0;
-
- if (host->en_dis_recurs)
- return 0;
-
- if (host->nesting_cnt++)
- return 0;
-
- cancel_delayed_work_sync(&host->disable);
-
- if (host->enabled)
- return 0;
-
- if (host->ops->enable) {
- int err;
-
- host->en_dis_recurs = 1;
- mmc_host_clk_hold(host);
- err = host->ops->enable(host);
- mmc_host_clk_release(host);
- host->en_dis_recurs = 0;
-
- if (err) {
- pr_debug("%s: enable error %d\n",
- mmc_hostname(host), err);
- return err;
- }
- }
- host->enabled = 1;
- return 0;
-}
-EXPORT_SYMBOL(mmc_host_enable);
-
-static int mmc_host_do_disable(struct mmc_host *host, int lazy)
-{
- if (host->ops->disable) {
- int err;
-
- host->en_dis_recurs = 1;
- mmc_host_clk_hold(host);
- err = host->ops->disable(host, lazy);
- mmc_host_clk_release(host);
- host->en_dis_recurs = 0;
-
- if (err < 0) {
- pr_debug("%s: disable error %d\n",
- mmc_hostname(host), err);
- return err;
- }
- if (err > 0) {
- unsigned long delay = msecs_to_jiffies(err);
-
- mmc_schedule_delayed_work(&host->disable, delay);
- }
- }
- host->enabled = 0;
- return 0;
-}
-
-/**
- * mmc_host_disable - disable a host.
- * @host: mmc host to disable
- *
- * Hosts that support power saving can use the 'enable' and 'disable'
- * methods to exit and enter power saving states. For more information
- * see comments for struct mmc_host_ops.
- */
-int mmc_host_disable(struct mmc_host *host)
-{
- int err;
-
- if (!(host->caps & MMC_CAP_DISABLE))
- return 0;
-
- if (host->en_dis_recurs)
- return 0;
-
- if (--host->nesting_cnt)
- return 0;
-
- if (!host->enabled)
- return 0;
-
- err = mmc_host_do_disable(host, 0);
- return err;
-}
-EXPORT_SYMBOL(mmc_host_disable);
-
-/**
* __mmc_claim_host - exclusively claim a host
* @host: mmc host to claim
* @abort: whether or not the operation should be aborted
@@ -735,8 +637,8 @@
wake_up(&host->wq);
spin_unlock_irqrestore(&host->lock, flags);
remove_wait_queue(&host->wq, &wait);
- if (!stop)
- mmc_host_enable(host);
+ if (host->ops->enable && !stop && host->claim_cnt == 1)
+ host->ops->enable(host);
return stop;
}
@@ -761,21 +663,28 @@
claimed_host = 1;
}
spin_unlock_irqrestore(&host->lock, flags);
+ if (host->ops->enable && claimed_host && host->claim_cnt == 1)
+ host->ops->enable(host);
return claimed_host;
}
EXPORT_SYMBOL(mmc_try_claim_host);
/**
- * mmc_do_release_host - release a claimed host
+ * mmc_release_host - release a host
* @host: mmc host to release
*
- * If you successfully claimed a host, this function will
- * release it again.
+ * Release a MMC host, allowing others to claim the host
+ * for their operations.
*/
-void mmc_do_release_host(struct mmc_host *host)
+void mmc_release_host(struct mmc_host *host)
{
unsigned long flags;
+ WARN_ON(!host->claimed);
+
+ if (host->ops->disable && host->claim_cnt == 1)
+ host->ops->disable(host);
+
spin_lock_irqsave(&host->lock, flags);
if (--host->claim_cnt) {
/* Release for nested claim */
@@ -787,67 +696,6 @@
wake_up(&host->wq);
}
}
-EXPORT_SYMBOL(mmc_do_release_host);
-
-void mmc_host_deeper_disable(struct work_struct *work)
-{
- struct mmc_host *host =
- container_of(work, struct mmc_host, disable.work);
-
- /* If the host is claimed then we do not want to disable it anymore */
- if (!mmc_try_claim_host(host))
- return;
- mmc_host_do_disable(host, 1);
- mmc_do_release_host(host);
-}
-
-/**
- * mmc_host_lazy_disable - lazily disable a host.
- * @host: mmc host to disable
- *
- * Hosts that support power saving can use the 'enable' and 'disable'
- * methods to exit and enter power saving states. For more information
- * see comments for struct mmc_host_ops.
- */
-int mmc_host_lazy_disable(struct mmc_host *host)
-{
- if (!(host->caps & MMC_CAP_DISABLE))
- return 0;
-
- if (host->en_dis_recurs)
- return 0;
-
- if (--host->nesting_cnt)
- return 0;
-
- if (!host->enabled)
- return 0;
-
- if (host->disable_delay) {
- mmc_schedule_delayed_work(&host->disable,
- msecs_to_jiffies(host->disable_delay));
- return 0;
- } else
- return mmc_host_do_disable(host, 1);
-}
-EXPORT_SYMBOL(mmc_host_lazy_disable);
-
-/**
- * mmc_release_host - release a host
- * @host: mmc host to release
- *
- * Release a MMC host, allowing others to claim the host
- * for their operations.
- */
-void mmc_release_host(struct mmc_host *host)
-{
- WARN_ON(!host->claimed);
-
- mmc_host_lazy_disable(host);
-
- mmc_do_release_host(host);
-}
-
EXPORT_SYMBOL(mmc_release_host);
/*
@@ -2115,18 +1963,36 @@
int mmc_detect_card_removed(struct mmc_host *host)
{
struct mmc_card *card = host->card;
+ int ret;
WARN_ON(!host->claimed);
+
+ if (!card)
+ return 1;
+
+ ret = mmc_card_removed(card);
/*
* 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);
+ if (!host->detect_change && !(host->caps & MMC_CAP_NEEDS_POLL) &&
+ !(host->caps2 & MMC_CAP2_DETECT_ON_ERR))
+ return ret;
host->detect_change = 0;
+ if (!ret) {
+ ret = _mmc_detect_card_removed(host);
+ if (ret && (host->caps2 & MMC_CAP2_DETECT_ON_ERR)) {
+ /*
+ * Schedule a detect work as soon as possible to let a
+ * rescan handle the card removal.
+ */
+ cancel_delayed_work(&host->detect);
+ mmc_detect_change(host, 0);
+ }
+ }
- return _mmc_detect_card_removed(host);
+ return ret;
}
EXPORT_SYMBOL(mmc_detect_card_removed);
@@ -2203,8 +2069,6 @@
spin_unlock_irqrestore(&host->lock, flags);
#endif
- if (host->caps & MMC_CAP_DISABLE)
- cancel_delayed_work(&host->disable);
cancel_delayed_work_sync(&host->detect);
mmc_flush_scheduled_work();
@@ -2399,13 +2263,11 @@
{
int err = 0;
- if (host->caps & MMC_CAP_DISABLE)
- cancel_delayed_work(&host->disable);
cancel_delayed_work(&host->detect);
mmc_flush_scheduled_work();
if (mmc_try_claim_host(host)) {
err = mmc_cache_ctrl(host, 0);
- mmc_do_release_host(host);
+ mmc_release_host(host);
} else {
err = -EBUSY;
}
@@ -2426,7 +2288,7 @@
if (host->bus_ops->suspend) {
err = host->bus_ops->suspend(host);
}
- mmc_do_release_host(host);
+ mmc_release_host(host);
if (err == -ENOSYS || !host->bus_ops->resume) {
/*
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index c3704e2..91c84c7 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -330,7 +330,6 @@
spin_lock_init(&host->lock);
init_waitqueue_head(&host->wq);
INIT_DELAYED_WORK(&host->detect, mmc_rescan);
- INIT_DELAYED_WORK_DEFERRABLE(&host->disable, mmc_host_deeper_disable);
#ifdef CONFIG_PM
host->pm_notify.notifier_call = mmc_pm_notify;
#endif
diff --git a/drivers/mmc/core/host.h b/drivers/mmc/core/host.h
index 08a7852..f2ab9e5 100644
--- a/drivers/mmc/core/host.h
+++ b/drivers/mmc/core/host.h
@@ -14,7 +14,6 @@
int mmc_register_host_class(void);
void mmc_unregister_host_class(void);
-void mmc_host_deeper_disable(struct work_struct *work);
#endif
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 2b9ed14..02914d6 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -519,6 +519,20 @@
ext_csd[EXT_CSD_CACHE_SIZE + 1] << 8 |
ext_csd[EXT_CSD_CACHE_SIZE + 2] << 16 |
ext_csd[EXT_CSD_CACHE_SIZE + 3] << 24;
+
+ if (ext_csd[EXT_CSD_DATA_SECTOR_SIZE] == 1)
+ card->ext_csd.data_sector_size = 4096;
+ else
+ card->ext_csd.data_sector_size = 512;
+
+ if ((ext_csd[EXT_CSD_DATA_TAG_SUPPORT] & 1) &&
+ (ext_csd[EXT_CSD_TAG_UNIT_SIZE] <= 8)) {
+ card->ext_csd.data_tag_unit_size =
+ ((unsigned int) 1 << ext_csd[EXT_CSD_TAG_UNIT_SIZE]) *
+ (card->ext_csd.data_sector_size);
+ } else {
+ card->ext_csd.data_tag_unit_size = 0;
+ }
}
out:
@@ -938,7 +952,8 @@
* If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF
* bit. This bit will be lost every time after a reset or power off.
*/
- if (card->ext_csd.enhanced_area_en) {
+ if (card->ext_csd.enhanced_area_en ||
+ (card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_ERASE_GROUP_DEF, 1,
card->ext_csd.generic_cmd6_time);
@@ -1033,22 +1048,6 @@
}
/*
- * Enable HPI feature (if supported)
- */
- if (card->ext_csd.hpi) {
- err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_HPI_MGMT, 1, 0);
- if (err && err != -EBADMSG)
- goto free_card;
- if (err) {
- pr_warning("%s: Enabling HPI failed\n",
- mmc_hostname(card->host));
- err = 0;
- } else
- card->ext_csd.hpi_en = 1;
- }
-
- /*
* Compute bus speed.
*/
max_dtr = (unsigned int)-1;
@@ -1097,9 +1096,12 @@
* 4. execute tuning for HS200
*/
if ((host->caps2 & MMC_CAP2_HS200) &&
- card->host->ops->execute_tuning)
+ card->host->ops->execute_tuning) {
+ mmc_host_clk_hold(card->host);
err = card->host->ops->execute_tuning(card->host,
MMC_SEND_TUNING_BLOCK_HS200);
+ mmc_host_clk_release(card->host);
+ }
if (err) {
pr_warning("%s: tuning execution failed\n",
mmc_hostname(card->host));
@@ -1219,6 +1221,23 @@
}
/*
+ * Enable HPI feature (if supported)
+ */
+ if (card->ext_csd.hpi) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_HPI_MGMT, 1,
+ card->ext_csd.generic_cmd6_time);
+ if (err && err != -EBADMSG)
+ goto free_card;
+ if (err) {
+ pr_warning("%s: Enabling HPI failed\n",
+ mmc_hostname(card->host));
+ err = 0;
+ } else
+ card->ext_csd.hpi_en = 1;
+ }
+
+ /*
* If cache size is higher than 0, this indicates
* the existence of cache and it can be turned on.
*/
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 4d41fa9..69370f4 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -553,18 +553,22 @@
{
struct mmc_command cmd = {0};
unsigned int opcode;
- unsigned int flags;
int err;
+ if (!card->ext_csd.hpi) {
+ pr_warning("%s: Card didn't support HPI command\n",
+ mmc_hostname(card->host));
+ return -EINVAL;
+ }
+
opcode = card->ext_csd.hpi_cmd;
if (opcode == MMC_STOP_TRANSMISSION)
- flags = MMC_RSP_R1 | MMC_CMD_AC;
+ cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
else if (opcode == MMC_SEND_STATUS)
- flags = MMC_RSP_R1 | MMC_CMD_AC;
+ cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
cmd.opcode = opcode;
cmd.arg = card->rca << 16 | 1;
- cmd.flags = flags;
cmd.cmd_timeout_ms = card->ext_csd.out_of_int_time;
err = mmc_wait_for_cmd(card->host, &cmd, 0);
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index ecbee9b..2bc06e7 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -533,6 +533,31 @@
Designware Mobile Storage IP block. This disables the external DMA
interface.
+config MMC_DW_PLTFM
+ tristate "Synopsys Designware MCI Support as platform device"
+ depends on MMC_DW
+ default y
+ help
+ This selects the common helper functions support for Host Controller
+ Interface based platform driver. Please select this option if the IP
+ is present as a platform device. This is the common interface for the
+ Synopsys Designware IP.
+
+ If you have a controller with this interface, say Y or M here.
+
+ If unsure, say Y.
+
+config MMC_DW_PCI
+ tristate "Synopsys Designware MCI support on PCI bus"
+ depends on MMC_DW && PCI
+ help
+ This selects the PCI bus for the Synopsys Designware Mobile Storage IP.
+ Select this option if the IP is present on PCI platform.
+
+ If you have a controller with this interface, say Y or M here.
+
+ If unsure, say N.
+
config MMC_SH_MMCIF
tristate "SuperH Internal MMCIF support"
depends on MMC_BLOCK && (SUPERH || ARCH_SHMOBILE)
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index 745f8fc..3e7e26d 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -39,6 +39,8 @@
obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o
obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o
obj-$(CONFIG_MMC_DW) += dw_mmc.o
+obj-$(CONFIG_MMC_DW_PLTFM) += dw_mmc-pltfm.o
+obj-$(CONFIG_MMC_DW_PCI) += dw_mmc-pci.o
obj-$(CONFIG_MMC_SH_MMCIF) += sh_mmcif.o
obj-$(CONFIG_MMC_JZ4740) += jz4740_mmc.o
obj-$(CONFIG_MMC_VUB300) += vub300.o
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index e4449a5..390863e 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1975,7 +1975,7 @@
return false;
} else {
dev_info(&host->pdev->dev,
- "Using %s for DMA transfers\n",
+ "using %s for DMA transfers\n",
dma_chan_name(host->dma.chan));
return true;
}
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 64a8325..c1f3673 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -160,6 +160,16 @@
MODULE_PARM_DESC(rw_threshold,
"Read/Write threshold. Default = 32");
+static unsigned poll_threshold = 128;
+module_param(poll_threshold, uint, S_IRUGO);
+MODULE_PARM_DESC(poll_threshold,
+ "Polling transaction size threshold. Default = 128");
+
+static unsigned poll_loopcount = 32;
+module_param(poll_loopcount, uint, S_IRUGO);
+MODULE_PARM_DESC(poll_loopcount,
+ "Maximum polling loop count. Default = 32");
+
static unsigned __initdata use_dma = 1;
module_param(use_dma, uint, 0);
MODULE_PARM_DESC(use_dma, "Whether to use DMA or not. Default = 1");
@@ -193,6 +203,7 @@
bool use_dma;
bool do_dma;
bool sdio_int;
+ bool active_request;
/* Scatterlist DMA uses one or more parameter RAM entries:
* the main one (associated with rxdma or txdma) plus zero or
@@ -219,6 +230,7 @@
#endif
};
+static irqreturn_t mmc_davinci_irq(int irq, void *dev_id);
/* PIO only */
static void mmc_davinci_sg_to_buf(struct mmc_davinci_host *host)
@@ -376,7 +388,20 @@
writel(cmd->arg, host->base + DAVINCI_MMCARGHL);
writel(cmd_reg, host->base + DAVINCI_MMCCMD);
- writel(im_val, host->base + DAVINCI_MMCIM);
+
+ host->active_request = true;
+
+ if (!host->do_dma && host->bytes_left <= poll_threshold) {
+ u32 count = poll_loopcount;
+
+ while (host->active_request && count--) {
+ mmc_davinci_irq(0, host);
+ cpu_relax();
+ }
+ }
+
+ if (host->active_request)
+ writel(im_val, host->base + DAVINCI_MMCIM);
}
/*----------------------------------------------------------------------*/
@@ -915,6 +940,7 @@
if (!data->stop || (host->cmd && host->cmd->error)) {
mmc_request_done(host->mmc, data->mrq);
writel(0, host->base + DAVINCI_MMCIM);
+ host->active_request = false;
} else
mmc_davinci_start_command(host, data->stop);
}
@@ -942,6 +968,7 @@
cmd->mrq->cmd->retries = 0;
mmc_request_done(host->mmc, cmd->mrq);
writel(0, host->base + DAVINCI_MMCIM);
+ host->active_request = false;
}
}
@@ -1009,12 +1036,33 @@
* by read. So, it is not unbouned loop even in the case of
* non-dma.
*/
- while (host->bytes_left && (status & (MMCST0_DXRDY | MMCST0_DRRDY))) {
- davinci_fifo_data_trans(host, rw_threshold);
- status = readl(host->base + DAVINCI_MMCST0);
- if (!status)
- break;
- qstatus |= status;
+ if (host->bytes_left && (status & (MMCST0_DXRDY | MMCST0_DRRDY))) {
+ unsigned long im_val;
+
+ /*
+ * If interrupts fire during the following loop, they will be
+ * handled by the handler, but the PIC will still buffer these.
+ * As a result, the handler will be called again to serve these
+ * needlessly. In order to avoid these spurious interrupts,
+ * keep interrupts masked during the loop.
+ */
+ im_val = readl(host->base + DAVINCI_MMCIM);
+ writel(0, host->base + DAVINCI_MMCIM);
+
+ do {
+ davinci_fifo_data_trans(host, rw_threshold);
+ status = readl(host->base + DAVINCI_MMCST0);
+ qstatus |= status;
+ } while (host->bytes_left &&
+ (status & (MMCST0_DXRDY | MMCST0_DRRDY)));
+
+ /*
+ * If an interrupt is pending, it is assumed it will fire when
+ * it is unmasked. This assumption is also taken when the MMCIM
+ * is first set. Otherwise, writing to MMCIM after reading the
+ * status is race-prone.
+ */
+ writel(im_val, host->base + DAVINCI_MMCIM);
}
if (qstatus & MMCST0_DATDNE) {
@@ -1418,17 +1466,14 @@
struct mmc_davinci_host *host = platform_get_drvdata(pdev);
int ret;
- mmc_host_enable(host->mmc);
ret = mmc_suspend_host(host->mmc);
if (!ret) {
writel(0, host->base + DAVINCI_MMCIM);
mmc_davinci_reset_ctrl(host, 1);
- mmc_host_disable(host->mmc);
clk_disable(host->clk);
host->suspended = 1;
} else {
host->suspended = 0;
- mmc_host_disable(host->mmc);
}
return ret;
@@ -1444,7 +1489,6 @@
return 0;
clk_enable(host->clk);
- mmc_host_enable(host->mmc);
mmc_davinci_reset_ctrl(host, 0);
ret = mmc_resume_host(host->mmc);
diff --git a/drivers/mmc/host/dw_mmc-pci.c b/drivers/mmc/host/dw_mmc-pci.c
new file mode 100644
index 0000000..dc0d25a
--- /dev/null
+++ b/drivers/mmc/host/dw_mmc-pci.c
@@ -0,0 +1,158 @@
+/*
+ * Synopsys DesignWare Multimedia Card PCI Interface driver
+ *
+ * Copyright (C) 2012 Vayavya Labs Pvt. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/dw_mmc.h>
+#include "dw_mmc.h"
+
+#define PCI_BAR_NO 2
+#define COMPLETE_BAR 0
+#define SYNOPSYS_DW_MCI_VENDOR_ID 0x700
+#define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107
+/* Defining the Capabilities */
+#define DW_MCI_CAPABILITIES (MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED |\
+ MMC_CAP_SD_HIGHSPEED | MMC_CAP_8_BIT_DATA |\
+ MMC_CAP_SDIO_IRQ)
+
+static struct dw_mci_board pci_board_data = {
+ .num_slots = 1,
+ .caps = DW_MCI_CAPABILITIES,
+ .bus_hz = 33 * 1000 * 1000,
+ .detect_delay_ms = 200,
+ .fifo_depth = 32,
+};
+
+static int __devinit dw_mci_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *entries)
+{
+ struct dw_mci *host;
+ int ret;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ return ret;
+ if (pci_request_regions(pdev, "dw_mmc_pci")) {
+ ret = -ENODEV;
+ goto err_disable_dev;
+ }
+
+ host = kzalloc(sizeof(struct dw_mci), GFP_KERNEL);
+ if (!host) {
+ ret = -ENOMEM;
+ goto err_release;
+ }
+
+ host->irq = pdev->irq;
+ host->irq_flags = IRQF_SHARED;
+ host->dev = pdev->dev;
+ host->pdata = &pci_board_data;
+
+ host->regs = pci_iomap(pdev, PCI_BAR_NO, COMPLETE_BAR);
+ if (!host->regs) {
+ ret = -EIO;
+ goto err_unmap;
+ }
+
+ pci_set_drvdata(pdev, host);
+ ret = dw_mci_probe(host);
+ if (ret)
+ goto err_probe_failed;
+ return ret;
+
+err_probe_failed:
+ pci_iounmap(pdev, host->regs);
+err_unmap:
+ kfree(host);
+err_release:
+ pci_release_regions(pdev);
+err_disable_dev:
+ pci_disable_device(pdev);
+ return ret;
+}
+
+static void __devexit dw_mci_pci_remove(struct pci_dev *pdev)
+{
+ struct dw_mci *host = pci_get_drvdata(pdev);
+
+ dw_mci_remove(host);
+ pci_set_drvdata(pdev, NULL);
+ pci_release_regions(pdev);
+ pci_iounmap(pdev, host->regs);
+ kfree(host);
+ pci_disable_device(pdev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int dw_mci_pci_suspend(struct device *dev)
+{
+ int ret;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct dw_mci *host = pci_get_drvdata(pdev);
+
+ ret = dw_mci_suspend(host);
+ return ret;
+}
+
+static int dw_mci_pci_resume(struct device *dev)
+{
+ int ret;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct dw_mci *host = pci_get_drvdata(pdev);
+
+ ret = dw_mci_resume(host);
+ return ret;
+}
+#else
+#define dw_mci_pci_suspend NULL
+#define dw_mci_pci_resume NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(dw_mci_pci_pmops, dw_mci_pci_suspend, dw_mci_pci_resume);
+
+static DEFINE_PCI_DEVICE_TABLE(dw_mci_pci_id) = {
+ { PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) },
+ {}
+};
+MODULE_DEVICE_TABLE(pci, dw_mci_pci_id);
+
+static struct pci_driver dw_mci_pci_driver = {
+ .name = "dw_mmc_pci",
+ .id_table = dw_mci_pci_id,
+ .probe = dw_mci_pci_probe,
+ .remove = dw_mci_pci_remove,
+ .driver = {
+ .pm = &dw_mci_pci_pmops
+ },
+};
+
+static int __init dw_mci_init(void)
+{
+ return pci_register_driver(&dw_mci_pci_driver);
+}
+
+static void __exit dw_mci_exit(void)
+{
+ pci_unregister_driver(&dw_mci_pci_driver);
+}
+
+module_init(dw_mci_init);
+module_exit(dw_mci_exit);
+
+MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver");
+MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
new file mode 100644
index 0000000..92ec3eb
--- /dev/null
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -0,0 +1,134 @@
+/*
+ * Synopsys DesignWare Multimedia Card Interface driver
+ *
+ * Copyright (C) 2009 NXP Semiconductors
+ * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/dw_mmc.h>
+#include "dw_mmc.h"
+
+static int dw_mci_pltfm_probe(struct platform_device *pdev)
+{
+ struct dw_mci *host;
+ struct resource *regs;
+ int ret;
+
+ host = kzalloc(sizeof(struct dw_mci), GFP_KERNEL);
+ if (!host)
+ return -ENOMEM;
+
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!regs) {
+ ret = -ENXIO;
+ goto err_free;
+ }
+
+ host->irq = platform_get_irq(pdev, 0);
+ if (host->irq < 0) {
+ ret = host->irq;
+ goto err_free;
+ }
+
+ host->dev = pdev->dev;
+ host->irq_flags = 0;
+ host->pdata = pdev->dev.platform_data;
+ ret = -ENOMEM;
+ host->regs = ioremap(regs->start, resource_size(regs));
+ if (!host->regs)
+ goto err_free;
+ platform_set_drvdata(pdev, host);
+ ret = dw_mci_probe(host);
+ if (ret)
+ goto err_out;
+ return ret;
+err_out:
+ iounmap(host->regs);
+err_free:
+ kfree(host);
+ return ret;
+}
+
+static int __exit dw_mci_pltfm_remove(struct platform_device *pdev)
+{
+ struct dw_mci *host = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ dw_mci_remove(host);
+ iounmap(host->regs);
+ kfree(host);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+/*
+ * TODO: we should probably disable the clock to the card in the suspend path.
+ */
+static int dw_mci_pltfm_suspend(struct device *dev)
+{
+ int ret;
+ struct dw_mci *host = dev_get_drvdata(dev);
+
+ ret = dw_mci_suspend(host);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int dw_mci_pltfm_resume(struct device *dev)
+{
+ int ret;
+ struct dw_mci *host = dev_get_drvdata(dev);
+
+ ret = dw_mci_resume(host);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+#else
+#define dw_mci_pltfm_suspend NULL
+#define dw_mci_pltfm_resume NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume);
+
+static struct platform_driver dw_mci_pltfm_driver = {
+ .remove = __exit_p(dw_mci_pltfm_remove),
+ .driver = {
+ .name = "dw_mmc",
+ .pm = &dw_mci_pltfm_pmops,
+ },
+};
+
+static int __init dw_mci_init(void)
+{
+ return platform_driver_probe(&dw_mci_pltfm_driver, dw_mci_pltfm_probe);
+}
+
+static void __exit dw_mci_exit(void)
+{
+ platform_driver_unregister(&dw_mci_pltfm_driver);
+}
+
+module_init(dw_mci_init);
+module_exit(dw_mci_exit);
+
+MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
+MODULE_AUTHOR("NXP Semiconductor VietNam");
+MODULE_AUTHOR("Imagination Technologies Ltd");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 8bec1c3..bf3c9b4 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -268,7 +268,7 @@
struct mmc_command *cmd, u32 cmd_flags)
{
host->cmd = cmd;
- dev_vdbg(&host->pdev->dev,
+ dev_vdbg(&host->dev,
"start command: ARGR=0x%08x CMDR=0x%08x\n",
cmd->arg, cmd_flags);
@@ -295,15 +295,25 @@
}
}
+static int dw_mci_get_dma_dir(struct mmc_data *data)
+{
+ if (data->flags & MMC_DATA_WRITE)
+ return DMA_TO_DEVICE;
+ else
+ return DMA_FROM_DEVICE;
+}
+
#ifdef CONFIG_MMC_DW_IDMAC
static void dw_mci_dma_cleanup(struct dw_mci *host)
{
struct mmc_data *data = host->data;
if (data)
- dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len,
- ((data->flags & MMC_DATA_WRITE)
- ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
+ if (!data->host_cookie)
+ dma_unmap_sg(&host->dev,
+ data->sg,
+ data->sg_len,
+ dw_mci_get_dma_dir(data));
}
static void dw_mci_idmac_stop_dma(struct dw_mci *host)
@@ -326,7 +336,7 @@
{
struct mmc_data *data = host->data;
- dev_vdbg(&host->pdev->dev, "DMA complete\n");
+ dev_vdbg(&host->dev, "DMA complete\n");
host->dma_ops->cleanup(host);
@@ -428,17 +438,15 @@
};
#endif /* CONFIG_MMC_DW_IDMAC */
-static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
+static int dw_mci_pre_dma_transfer(struct dw_mci *host,
+ struct mmc_data *data,
+ bool next)
{
struct scatterlist *sg;
- unsigned int i, direction, sg_len;
- u32 temp;
+ unsigned int i, sg_len;
- host->using_dma = 0;
-
- /* If we don't have a channel, we can't do DMA */
- if (!host->use_dma)
- return -ENODEV;
+ if (!next && data->host_cookie)
+ return data->host_cookie;
/*
* We don't do DMA on "complex" transfers, i.e. with
@@ -447,6 +455,7 @@
*/
if (data->blocks * data->blksz < DW_MCI_DMA_THRESHOLD)
return -EINVAL;
+
if (data->blksz & 3)
return -EINVAL;
@@ -455,17 +464,74 @@
return -EINVAL;
}
+ sg_len = dma_map_sg(&host->dev,
+ data->sg,
+ data->sg_len,
+ dw_mci_get_dma_dir(data));
+ if (sg_len == 0)
+ return -EINVAL;
+
+ if (next)
+ data->host_cookie = sg_len;
+
+ return sg_len;
+}
+
+static void dw_mci_pre_req(struct mmc_host *mmc,
+ struct mmc_request *mrq,
+ bool is_first_req)
+{
+ struct dw_mci_slot *slot = mmc_priv(mmc);
+ struct mmc_data *data = mrq->data;
+
+ if (!slot->host->use_dma || !data)
+ return;
+
+ if (data->host_cookie) {
+ data->host_cookie = 0;
+ return;
+ }
+
+ if (dw_mci_pre_dma_transfer(slot->host, mrq->data, 1) < 0)
+ data->host_cookie = 0;
+}
+
+static void dw_mci_post_req(struct mmc_host *mmc,
+ struct mmc_request *mrq,
+ int err)
+{
+ struct dw_mci_slot *slot = mmc_priv(mmc);
+ struct mmc_data *data = mrq->data;
+
+ if (!slot->host->use_dma || !data)
+ return;
+
+ if (data->host_cookie)
+ dma_unmap_sg(&slot->host->dev,
+ data->sg,
+ data->sg_len,
+ dw_mci_get_dma_dir(data));
+ data->host_cookie = 0;
+}
+
+static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
+{
+ int sg_len;
+ u32 temp;
+
+ host->using_dma = 0;
+
+ /* If we don't have a channel, we can't do DMA */
+ if (!host->use_dma)
+ return -ENODEV;
+
+ sg_len = dw_mci_pre_dma_transfer(host, data, 0);
+ if (sg_len < 0)
+ return sg_len;
+
host->using_dma = 1;
- if (data->flags & MMC_DATA_READ)
- direction = DMA_FROM_DEVICE;
- else
- direction = DMA_TO_DEVICE;
-
- sg_len = dma_map_sg(&host->pdev->dev, data->sg, data->sg_len,
- direction);
-
- dev_vdbg(&host->pdev->dev,
+ dev_vdbg(&host->dev,
"sd sg_cpu: %#lx sg_dma: %#lx sg_len: %d\n",
(unsigned long)host->sg_cpu, (unsigned long)host->sg_dma,
sg_len);
@@ -579,8 +645,8 @@
SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
/* enable clock */
- mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE |
- SDMMC_CLKEN_LOW_PWR);
+ mci_writel(host, CLKENA, ((SDMMC_CLKEN_ENABLE |
+ SDMMC_CLKEN_LOW_PWR) << slot->id));
/* inform CIU */
mci_send_cmd(slot,
@@ -800,6 +866,8 @@
static const struct mmc_host_ops dw_mci_ops = {
.request = dw_mci_request,
+ .pre_req = dw_mci_pre_req,
+ .post_req = dw_mci_post_req,
.set_ios = dw_mci_set_ios,
.get_ro = dw_mci_get_ro,
.get_cd = dw_mci_get_cd,
@@ -821,12 +889,12 @@
slot = list_entry(host->queue.next,
struct dw_mci_slot, queue_node);
list_del(&slot->queue_node);
- dev_vdbg(&host->pdev->dev, "list not empty: %s is next\n",
+ dev_vdbg(&host->dev, "list not empty: %s is next\n",
mmc_hostname(slot->mmc));
host->state = STATE_SENDING_CMD;
dw_mci_start_request(host, slot);
} else {
- dev_vdbg(&host->pdev->dev, "list empty\n");
+ dev_vdbg(&host->dev, "list empty\n");
host->state = STATE_IDLE;
}
@@ -965,7 +1033,7 @@
data->bytes_xfered = 0;
data->error = -ETIMEDOUT;
} else {
- dev_err(&host->pdev->dev,
+ dev_err(&host->dev,
"data FIFO error "
"(status=%08x)\n",
status);
@@ -1682,7 +1750,7 @@
struct mmc_host *mmc;
struct dw_mci_slot *slot;
- mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), &host->pdev->dev);
+ mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), &host->dev);
if (!mmc)
return -ENOMEM;
@@ -1720,13 +1788,11 @@
if (host->pdata->quirks & DW_MCI_QUIRK_HIGHSPEED)
mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
-#ifdef CONFIG_MMC_DW_IDMAC
- mmc->max_segs = host->ring_size;
- mmc->max_blk_size = 65536;
- mmc->max_blk_count = host->ring_size;
- mmc->max_seg_size = 0x1000;
- mmc->max_req_size = mmc->max_seg_size * mmc->max_blk_count;
-#else
+ if (mmc->caps2 & MMC_CAP2_POWEROFF_NOTIFY)
+ mmc->power_notify_type = MMC_HOST_PW_NOTIFY_SHORT;
+ else
+ mmc->power_notify_type = MMC_HOST_PW_NOTIFY_NONE;
+
if (host->pdata->blk_settings) {
mmc->max_segs = host->pdata->blk_settings->max_segs;
mmc->max_blk_size = host->pdata->blk_settings->max_blk_size;
@@ -1735,13 +1801,20 @@
mmc->max_seg_size = host->pdata->blk_settings->max_seg_size;
} else {
/* Useful defaults if platform data is unset. */
+#ifdef CONFIG_MMC_DW_IDMAC
+ mmc->max_segs = host->ring_size;
+ mmc->max_blk_size = 65536;
+ mmc->max_blk_count = host->ring_size;
+ mmc->max_seg_size = 0x1000;
+ mmc->max_req_size = mmc->max_seg_size * mmc->max_blk_count;
+#else
mmc->max_segs = 64;
mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */
mmc->max_blk_count = 512;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
mmc->max_seg_size = mmc->max_req_size;
- }
#endif /* CONFIG_MMC_DW_IDMAC */
+ }
host->vmmc = regulator_get(mmc_dev(mmc), "vmmc");
if (IS_ERR(host->vmmc)) {
@@ -1789,10 +1862,10 @@
static void dw_mci_init_dma(struct dw_mci *host)
{
/* Alloc memory for sg translation */
- host->sg_cpu = dma_alloc_coherent(&host->pdev->dev, PAGE_SIZE,
+ host->sg_cpu = dma_alloc_coherent(&host->dev, PAGE_SIZE,
&host->sg_dma, GFP_KERNEL);
if (!host->sg_cpu) {
- dev_err(&host->pdev->dev, "%s: could not alloc DMA memory\n",
+ dev_err(&host->dev, "%s: could not alloc DMA memory\n",
__func__);
goto no_dma;
}
@@ -1800,7 +1873,7 @@
/* Determine which DMA interface to use */
#ifdef CONFIG_MMC_DW_IDMAC
host->dma_ops = &dw_mci_idmac_ops;
- dev_info(&host->pdev->dev, "Using internal DMA controller.\n");
+ dev_info(&host->dev, "Using internal DMA controller.\n");
#endif
if (!host->dma_ops)
@@ -1808,12 +1881,12 @@
if (host->dma_ops->init) {
if (host->dma_ops->init(host)) {
- dev_err(&host->pdev->dev, "%s: Unable to initialize "
+ dev_err(&host->dev, "%s: Unable to initialize "
"DMA Controller.\n", __func__);
goto no_dma;
}
} else {
- dev_err(&host->pdev->dev, "DMA initialization not found.\n");
+ dev_err(&host->dev, "DMA initialization not found.\n");
goto no_dma;
}
@@ -1821,7 +1894,7 @@
return;
no_dma:
- dev_info(&host->pdev->dev, "Using PIO mode.\n");
+ dev_info(&host->dev, "Using PIO mode.\n");
host->use_dma = 0;
return;
}
@@ -1847,61 +1920,37 @@
return false;
}
-static int dw_mci_probe(struct platform_device *pdev)
+int dw_mci_probe(struct dw_mci *host)
{
- struct dw_mci *host;
- struct resource *regs;
- struct dw_mci_board *pdata;
- int irq, ret, i, width;
+ int width, i, ret = 0;
u32 fifo_size;
- regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!regs)
- return -ENXIO;
-
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- host = kzalloc(sizeof(struct dw_mci), GFP_KERNEL);
- if (!host)
- return -ENOMEM;
-
- host->pdev = pdev;
- host->pdata = pdata = pdev->dev.platform_data;
- if (!pdata || !pdata->init) {
- dev_err(&pdev->dev,
+ if (!host->pdata || !host->pdata->init) {
+ dev_err(&host->dev,
"Platform data must supply init function\n");
- ret = -ENODEV;
- goto err_freehost;
+ return -ENODEV;
}
- if (!pdata->select_slot && pdata->num_slots > 1) {
- dev_err(&pdev->dev,
+ if (!host->pdata->select_slot && host->pdata->num_slots > 1) {
+ dev_err(&host->dev,
"Platform data must supply select_slot function\n");
- ret = -ENODEV;
- goto err_freehost;
+ return -ENODEV;
}
- if (!pdata->bus_hz) {
- dev_err(&pdev->dev,
+ if (!host->pdata->bus_hz) {
+ dev_err(&host->dev,
"Platform data must supply bus speed\n");
- ret = -ENODEV;
- goto err_freehost;
+ return -ENODEV;
}
- host->bus_hz = pdata->bus_hz;
- host->quirks = pdata->quirks;
+ host->bus_hz = host->pdata->bus_hz;
+ host->quirks = host->pdata->quirks;
spin_lock_init(&host->lock);
INIT_LIST_HEAD(&host->queue);
- ret = -ENOMEM;
- host->regs = ioremap(regs->start, resource_size(regs));
- if (!host->regs)
- goto err_freehost;
- host->dma_ops = pdata->dma_ops;
+ host->dma_ops = host->pdata->dma_ops;
dw_mci_init_dma(host);
/*
@@ -1931,7 +1980,7 @@
}
/* Reset all blocks */
- if (!mci_wait_reset(&pdev->dev, host)) {
+ if (!mci_wait_reset(&host->dev, host)) {
ret = -ENODEV;
goto err_dmaunmap;
}
@@ -1974,13 +2023,10 @@
if (!dw_mci_card_workqueue)
goto err_dmaunmap;
INIT_WORK(&host->card_work, dw_mci_work_routine_card);
-
- ret = request_irq(irq, dw_mci_interrupt, 0, "dw-mci", host);
+ ret = request_irq(host->irq, dw_mci_interrupt, host->irq_flags, "dw-mci", host);
if (ret)
goto err_workqueue;
- platform_set_drvdata(pdev, host);
-
if (host->pdata->num_slots)
host->num_slots = host->pdata->num_slots;
else
@@ -2000,7 +2046,7 @@
* Need to check the version-id and set data-offset for DATA register.
*/
host->verid = SDMMC_GET_VERID(mci_readl(host, VERID));
- dev_info(&pdev->dev, "Version ID is %04x\n", host->verid);
+ dev_info(&host->dev, "Version ID is %04x\n", host->verid);
if (host->verid < DW_MMC_240A)
host->data_offset = DATA_OFFSET;
@@ -2017,12 +2063,12 @@
DW_MCI_ERROR_FLAGS | SDMMC_INT_CD);
mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); /* Enable mci interrupt */
- dev_info(&pdev->dev, "DW MMC controller at irq %d, "
+ dev_info(&host->dev, "DW MMC controller at irq %d, "
"%d bit host data width, "
"%u deep fifo\n",
- irq, width, fifo_size);
+ host->irq, width, fifo_size);
if (host->quirks & DW_MCI_QUIRK_IDMAC_DTO)
- dev_info(&pdev->dev, "Internal DMAC interrupt fix enabled.\n");
+ dev_info(&host->dev, "Internal DMAC interrupt fix enabled.\n");
return 0;
@@ -2033,7 +2079,7 @@
dw_mci_cleanup_slot(host->slot[i], i);
i--;
}
- free_irq(irq, host);
+ free_irq(host->irq, host);
err_workqueue:
destroy_workqueue(dw_mci_card_workqueue);
@@ -2041,33 +2087,26 @@
err_dmaunmap:
if (host->use_dma && host->dma_ops->exit)
host->dma_ops->exit(host);
- dma_free_coherent(&host->pdev->dev, PAGE_SIZE,
+ dma_free_coherent(&host->dev, PAGE_SIZE,
host->sg_cpu, host->sg_dma);
- iounmap(host->regs);
if (host->vmmc) {
regulator_disable(host->vmmc);
regulator_put(host->vmmc);
}
-
-
-err_freehost:
- kfree(host);
return ret;
}
+EXPORT_SYMBOL(dw_mci_probe);
-static int __exit dw_mci_remove(struct platform_device *pdev)
+void dw_mci_remove(struct dw_mci *host)
{
- struct dw_mci *host = platform_get_drvdata(pdev);
int i;
mci_writel(host, RINTSTS, 0xFFFFFFFF);
mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */
- platform_set_drvdata(pdev, NULL);
-
for (i = 0; i < host->num_slots; i++) {
- dev_dbg(&pdev->dev, "remove slot %d\n", i);
+ dev_dbg(&host->dev, "remove slot %d\n", i);
if (host->slot[i])
dw_mci_cleanup_slot(host->slot[i], i);
}
@@ -2076,9 +2115,9 @@
mci_writel(host, CLKENA, 0);
mci_writel(host, CLKSRC, 0);
- free_irq(platform_get_irq(pdev, 0), host);
+ free_irq(host->irq, host);
destroy_workqueue(dw_mci_card_workqueue);
- dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
+ dma_free_coherent(&host->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
if (host->use_dma && host->dma_ops->exit)
host->dma_ops->exit(host);
@@ -2088,20 +2127,18 @@
regulator_put(host->vmmc);
}
- iounmap(host->regs);
-
- kfree(host);
- return 0;
}
+EXPORT_SYMBOL(dw_mci_remove);
+
+
#ifdef CONFIG_PM_SLEEP
/*
* TODO: we should probably disable the clock to the card in the suspend path.
*/
-static int dw_mci_suspend(struct device *dev)
+int dw_mci_suspend(struct dw_mci *host)
{
- int i, ret;
- struct dw_mci *host = dev_get_drvdata(dev);
+ int i, ret = 0;
for (i = 0; i < host->num_slots; i++) {
struct dw_mci_slot *slot = host->slot[i];
@@ -2123,11 +2160,11 @@
return 0;
}
+EXPORT_SYMBOL(dw_mci_suspend);
-static int dw_mci_resume(struct device *dev)
+int dw_mci_resume(struct dw_mci *host)
{
int i, ret;
- struct dw_mci *host = dev_get_drvdata(dev);
if (host->vmmc)
regulator_enable(host->vmmc);
@@ -2135,7 +2172,7 @@
if (host->dma_ops->init)
host->dma_ops->init(host);
- if (!mci_wait_reset(dev, host)) {
+ if (!mci_wait_reset(&host->dev, host)) {
ret = -ENODEV;
return ret;
}
@@ -2157,32 +2194,19 @@
if (ret < 0)
return ret;
}
-
return 0;
}
-#else
-#define dw_mci_suspend NULL
-#define dw_mci_resume NULL
+EXPORT_SYMBOL(dw_mci_resume);
#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),
- .driver = {
- .name = "dw_mmc",
- .pm = &dw_mci_pmops,
- },
-};
-
static int __init dw_mci_init(void)
{
- return platform_driver_probe(&dw_mci_driver, dw_mci_probe);
+ printk(KERN_INFO "Synopsys Designware Multimedia Card Interface Driver");
+ return 0;
}
static void __exit dw_mci_exit(void)
{
- platform_driver_unregister(&dw_mci_driver);
}
module_init(dw_mci_init);
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index df392a1..15c27e1 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -175,4 +175,11 @@
(*(volatile u64 __force *)((dev)->regs + SDMMC_##reg) = (value))
#endif
+extern int dw_mci_probe(struct dw_mci *host);
+extern void dw_mci_remove(struct dw_mci *host);
+#ifdef CONFIG_PM
+extern int dw_mci_suspend(struct dw_mci *host);
+extern int dw_mci_resume(struct dw_mci *host);
+#endif
+
#endif /* _DW_MMC_H_ */
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index fd0c661..47adb16 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -26,6 +26,9 @@
#include <linux/platform_device.h>
#include <linux/timer.h>
#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/core.h>
#include <linux/mmc/mmc.h>
@@ -106,17 +109,6 @@
#define SOFTRESET (1 << 1)
#define RESETDONE (1 << 0)
-/*
- * FIXME: Most likely all the data using these _DEVID defines should come
- * from the platform_data, or implemented in controller and slot specific
- * functions.
- */
-#define OMAP_MMC1_DEVID 0
-#define OMAP_MMC2_DEVID 1
-#define OMAP_MMC3_DEVID 2
-#define OMAP_MMC4_DEVID 3
-#define OMAP_MMC5_DEVID 4
-
#define MMC_AUTOSUSPEND_DELAY 100
#define MMC_TIMEOUT_MS 20
#define OMAP_MMC_MIN_CLOCK 400000
@@ -164,7 +156,6 @@
void __iomem *base;
resource_size_t mapbase;
spinlock_t irq_lock; /* Prevent races with irq handler */
- unsigned int id;
unsigned int dma_len;
unsigned int dma_sg_idx;
unsigned char bus_mode;
@@ -179,7 +170,6 @@
int got_dbclk;
int response_busy;
int context_loss;
- int dpm_state;
int vdd;
int protect_card;
int reqs_blocked;
@@ -241,28 +231,7 @@
#ifdef CONFIG_REGULATOR
-static int omap_hsmmc_1_set_power(struct device *dev, int slot, int power_on,
- int vdd)
-{
- struct omap_hsmmc_host *host =
- platform_get_drvdata(to_platform_device(dev));
- int ret;
-
- if (mmc_slot(host).before_set_reg)
- mmc_slot(host).before_set_reg(dev, slot, power_on, vdd);
-
- if (power_on)
- ret = mmc_regulator_set_ocr(host->mmc, host->vcc, vdd);
- else
- ret = mmc_regulator_set_ocr(host->mmc, host->vcc, 0);
-
- if (mmc_slot(host).after_set_reg)
- mmc_slot(host).after_set_reg(dev, slot, power_on, vdd);
-
- return ret;
-}
-
-static int omap_hsmmc_235_set_power(struct device *dev, int slot, int power_on,
+static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on,
int vdd)
{
struct omap_hsmmc_host *host =
@@ -275,6 +244,13 @@
*/
if (!host->vcc)
return 0;
+ /*
+ * With DT, never turn OFF the regulator. This is because
+ * the pbias cell programming support is still missing when
+ * booting with Device tree
+ */
+ if (of_have_populated_dt() && !vdd)
+ return 0;
if (mmc_slot(host).before_set_reg)
mmc_slot(host).before_set_reg(dev, slot, power_on, vdd);
@@ -318,106 +294,16 @@
return ret;
}
-static int omap_hsmmc_4_set_power(struct device *dev, int slot, int power_on,
- int vdd)
-{
- return 0;
-}
-
-static int omap_hsmmc_1_set_sleep(struct device *dev, int slot, int sleep,
- int vdd, int cardsleep)
-{
- struct omap_hsmmc_host *host =
- platform_get_drvdata(to_platform_device(dev));
- int mode = sleep ? REGULATOR_MODE_STANDBY : REGULATOR_MODE_NORMAL;
-
- return regulator_set_mode(host->vcc, mode);
-}
-
-static int omap_hsmmc_235_set_sleep(struct device *dev, int slot, int sleep,
- int vdd, int cardsleep)
-{
- struct omap_hsmmc_host *host =
- platform_get_drvdata(to_platform_device(dev));
- int err, mode;
-
- /*
- * If we don't see a Vcc regulator, assume it's a fixed
- * voltage always-on regulator.
- */
- if (!host->vcc)
- return 0;
-
- mode = sleep ? REGULATOR_MODE_STANDBY : REGULATOR_MODE_NORMAL;
-
- if (!host->vcc_aux)
- return regulator_set_mode(host->vcc, mode);
-
- if (cardsleep) {
- /* VCC can be turned off if card is asleep */
- if (sleep)
- err = mmc_regulator_set_ocr(host->mmc, host->vcc, 0);
- else
- err = mmc_regulator_set_ocr(host->mmc, host->vcc, vdd);
- } else
- err = regulator_set_mode(host->vcc, mode);
- if (err)
- return err;
-
- if (!mmc_slot(host).vcc_aux_disable_is_sleep)
- return regulator_set_mode(host->vcc_aux, mode);
-
- if (sleep)
- return regulator_disable(host->vcc_aux);
- else
- return regulator_enable(host->vcc_aux);
-}
-
-static int omap_hsmmc_4_set_sleep(struct device *dev, int slot, int sleep,
- int vdd, int cardsleep)
-{
- return 0;
-}
-
static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
{
struct regulator *reg;
- int ret = 0;
int ocr_value = 0;
- switch (host->id) {
- case OMAP_MMC1_DEVID:
- /* On-chip level shifting via PBIAS0/PBIAS1 */
- mmc_slot(host).set_power = omap_hsmmc_1_set_power;
- mmc_slot(host).set_sleep = omap_hsmmc_1_set_sleep;
- break;
- case OMAP_MMC2_DEVID:
- case OMAP_MMC3_DEVID:
- case OMAP_MMC5_DEVID:
- /* Off-chip level shifting, or none */
- mmc_slot(host).set_power = omap_hsmmc_235_set_power;
- mmc_slot(host).set_sleep = omap_hsmmc_235_set_sleep;
- break;
- case OMAP_MMC4_DEVID:
- mmc_slot(host).set_power = omap_hsmmc_4_set_power;
- mmc_slot(host).set_sleep = omap_hsmmc_4_set_sleep;
- default:
- pr_err("MMC%d configuration not supported!\n", host->id);
- return -EINVAL;
- }
+ mmc_slot(host).set_power = omap_hsmmc_set_power;
reg = regulator_get(host->dev, "vmmc");
if (IS_ERR(reg)) {
dev_dbg(host->dev, "vmmc regulator missing\n");
- /*
- * HACK: until fixed.c regulator is usable,
- * we don't require a main regulator
- * for MMC2 or MMC3
- */
- if (host->id == OMAP_MMC1_DEVID) {
- ret = PTR_ERR(reg);
- goto err;
- }
} else {
host->vcc = reg;
ocr_value = mmc_regulator_get_ocrmask(reg);
@@ -425,8 +311,8 @@
mmc_slot(host).ocr_mask = ocr_value;
} else {
if (!(mmc_slot(host).ocr_mask & ocr_value)) {
- pr_err("MMC%d ocrmask %x is not supported\n",
- host->id, mmc_slot(host).ocr_mask);
+ dev_err(host->dev, "ocrmask %x is not supported\n",
+ mmc_slot(host).ocr_mask);
mmc_slot(host).ocr_mask = 0;
return -EINVAL;
}
@@ -459,11 +345,6 @@
}
return 0;
-
-err:
- mmc_slot(host).set_power = NULL;
- mmc_slot(host).set_sleep = NULL;
- return ret;
}
static void omap_hsmmc_reg_put(struct omap_hsmmc_host *host)
@@ -471,7 +352,6 @@
regulator_put(host->vcc);
regulator_put(host->vcc_aux);
mmc_slot(host).set_power = NULL;
- mmc_slot(host).set_sleep = NULL;
}
static inline int omap_hsmmc_have_reg(void)
@@ -710,7 +590,7 @@
OMAP_HSMMC_WRITE(host->base, SYSCONFIG,
OMAP_HSMMC_READ(host->base, SYSCONFIG) | AUTOIDLE);
- if (host->id == OMAP_MMC1_DEVID) {
+ if (host->pdata->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) {
if (host->power_mode != MMC_POWER_OFF &&
(1 << ios->vdd) <= MMC_VDD_23_24)
hctl = SDVS18;
@@ -1261,14 +1141,14 @@
host->reqs_blocked = 0;
if (mmc_slot(host).get_cover_state(host->dev, host->slot_id)) {
if (host->protect_card) {
- pr_info("%s: cover is closed, "
+ dev_info(host->dev, "%s: cover is closed, "
"card is now accessible\n",
mmc_hostname(host->mmc));
host->protect_card = 0;
}
} else {
if (!host->protect_card) {
- pr_info("%s: cover is open, "
+ dev_info(host->dev, "%s: cover is open, "
"card is now inaccessible\n",
mmc_hostname(host->mmc));
host->protect_card = 1;
@@ -1405,7 +1285,7 @@
if (!next && data->host_cookie &&
data->host_cookie != host->next_data.cookie) {
- pr_warning("[%s] invalid cookie: data->host_cookie %d"
+ dev_warn(host->dev, "[%s] invalid cookie: data->host_cookie %d"
" host->next_data.cookie %d\n",
__func__, data->host_cookie, host->next_data.cookie);
data->host_cookie = 0;
@@ -1663,7 +1543,13 @@
* of external transceiver; but they all handle 1.8V.
*/
if ((OMAP_HSMMC_READ(host->base, HCTL) & SDVSDET) &&
- (ios->vdd == DUAL_VOLT_OCR_BIT)) {
+ (ios->vdd == DUAL_VOLT_OCR_BIT) &&
+ /*
+ * With pbias cell programming missing, this
+ * can't be allowed when booting with device
+ * tree.
+ */
+ (!of_have_populated_dt())) {
/*
* The mmc_select_voltage fn of the core does
* not seem to set the power_mode to
@@ -1748,7 +1634,7 @@
return 0;
}
-static int omap_hsmmc_disable_fclk(struct mmc_host *mmc, int lazy)
+static int omap_hsmmc_disable_fclk(struct mmc_host *mmc)
{
struct omap_hsmmc_host *host = mmc_priv(mmc);
@@ -1782,15 +1668,8 @@
if (host->pdata->get_context_loss_count)
context_loss = host->pdata->get_context_loss_count(host->dev);
- seq_printf(s, "mmc%d:\n"
- " enabled:\t%d\n"
- " dpm_state:\t%d\n"
- " nesting_cnt:\t%d\n"
- " ctx_loss:\t%d:%d\n"
- "\nregs:\n",
- mmc->index, mmc->enabled ? 1 : 0,
- host->dpm_state, mmc->nesting_cnt,
- host->context_loss, context_loss);
+ seq_printf(s, "mmc%d:\n ctx_loss:\t%d:%d\n\nregs:\n",
+ mmc->index, host->context_loss, context_loss);
if (host->suspended) {
seq_printf(s, "host suspended, can't read registers\n");
@@ -1847,6 +1726,65 @@
#endif
+#ifdef CONFIG_OF
+static u16 omap4_reg_offset = 0x100;
+
+static const struct of_device_id omap_mmc_of_match[] = {
+ {
+ .compatible = "ti,omap2-hsmmc",
+ },
+ {
+ .compatible = "ti,omap3-hsmmc",
+ },
+ {
+ .compatible = "ti,omap4-hsmmc",
+ .data = &omap4_reg_offset,
+ },
+ {},
+}
+MODULE_DEVICE_TABLE(of, omap_mmc_of_match);
+
+static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
+{
+ struct omap_mmc_platform_data *pdata;
+ struct device_node *np = dev->of_node;
+ u32 bus_width;
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return NULL; /* out of memory */
+
+ if (of_find_property(np, "ti,dual-volt", NULL))
+ pdata->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
+
+ /* This driver only supports 1 slot */
+ pdata->nr_slots = 1;
+ pdata->slots[0].switch_pin = of_get_named_gpio(np, "cd-gpios", 0);
+ pdata->slots[0].gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
+
+ if (of_find_property(np, "ti,non-removable", NULL)) {
+ pdata->slots[0].nonremovable = true;
+ pdata->slots[0].no_regulator_off_init = true;
+ }
+ of_property_read_u32(np, "ti,bus-width", &bus_width);
+ if (bus_width == 4)
+ pdata->slots[0].caps |= MMC_CAP_4_BIT_DATA;
+ else if (bus_width == 8)
+ pdata->slots[0].caps |= MMC_CAP_8_BIT_DATA;
+
+ if (of_find_property(np, "ti,needs-special-reset", NULL))
+ pdata->slots[0].features |= HSMMC_HAS_UPDATED_RESET;
+
+ return pdata;
+}
+#else
+static inline struct omap_mmc_platform_data
+ *of_get_hsmmc_pdata(struct device *dev)
+{
+ return NULL;
+}
+#endif
+
static int __init omap_hsmmc_probe(struct platform_device *pdev)
{
struct omap_mmc_platform_data *pdata = pdev->dev.platform_data;
@@ -1854,6 +1792,16 @@
struct omap_hsmmc_host *host = NULL;
struct resource *res;
int ret, irq;
+ const struct of_device_id *match;
+
+ match = of_match_device(of_match_ptr(omap_mmc_of_match), &pdev->dev);
+ if (match) {
+ pdata = of_get_hsmmc_pdata(&pdev->dev);
+ if (match->data) {
+ u16 *offsetp = match->data;
+ pdata->reg_offset = *offsetp;
+ }
+ }
if (pdata == NULL) {
dev_err(&pdev->dev, "Platform Data is missing\n");
@@ -1894,7 +1842,6 @@
host->dev->dma_mask = &pdata->dma_mask;
host->dma_ch = -1;
host->irq = irq;
- host->id = pdev->id;
host->slot_id = 0;
host->mapbase = res->start;
host->base = ioremap(host->mapbase, SZ_4K);
@@ -1912,8 +1859,12 @@
if (mmc_slot(host).vcc_aux_disable_is_sleep)
mmc_slot(host).no_off = 1;
- mmc->f_min = OMAP_MMC_MIN_CLOCK;
- mmc->f_max = OMAP_MMC_MAX_CLOCK;
+ mmc->f_min = OMAP_MMC_MIN_CLOCK;
+
+ if (pdata->max_freq > 0)
+ mmc->f_max = pdata->max_freq;
+ else
+ mmc->f_max = OMAP_MMC_MAX_CLOCK;
spin_lock_init(&host->irq_lock);
@@ -1926,7 +1877,6 @@
omap_hsmmc_context_save(host);
- mmc->caps |= MMC_CAP_DISABLE;
if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) {
dev_info(&pdev->dev, "multiblock reads disabled due to 35xx erratum 2.1.1.128; MMC read performance may suffer\n");
mmc->caps2 |= MMC_CAP2_NO_MULTI_READ;
@@ -1977,32 +1927,19 @@
omap_hsmmc_conf_bus_power(host);
- /* Select DMA lines */
- switch (host->id) {
- case OMAP_MMC1_DEVID:
- host->dma_line_tx = OMAP24XX_DMA_MMC1_TX;
- host->dma_line_rx = OMAP24XX_DMA_MMC1_RX;
- break;
- case OMAP_MMC2_DEVID:
- host->dma_line_tx = OMAP24XX_DMA_MMC2_TX;
- host->dma_line_rx = OMAP24XX_DMA_MMC2_RX;
- break;
- case OMAP_MMC3_DEVID:
- host->dma_line_tx = OMAP34XX_DMA_MMC3_TX;
- host->dma_line_rx = OMAP34XX_DMA_MMC3_RX;
- break;
- case OMAP_MMC4_DEVID:
- host->dma_line_tx = OMAP44XX_DMA_MMC4_TX;
- host->dma_line_rx = OMAP44XX_DMA_MMC4_RX;
- break;
- case OMAP_MMC5_DEVID:
- host->dma_line_tx = OMAP44XX_DMA_MMC5_TX;
- host->dma_line_rx = OMAP44XX_DMA_MMC5_RX;
- break;
- default:
- dev_err(mmc_dev(host->mmc), "Invalid MMC id\n");
+ res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
+ if (!res) {
+ dev_err(mmc_dev(host->mmc), "cannot get DMA TX channel\n");
goto err_irq;
}
+ host->dma_line_tx = res->start;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
+ if (!res) {
+ dev_err(mmc_dev(host->mmc), "cannot get DMA RX channel\n");
+ goto err_irq;
+ }
+ host->dma_line_rx = res->start;
/* Request IRQ for MMC operations */
ret = request_irq(host->irq, omap_hsmmc_irq, 0,
@@ -2083,6 +2020,7 @@
err_irq:
pm_runtime_mark_last_busy(host->dev);
pm_runtime_put_autosuspend(host->dev);
+ pm_runtime_disable(host->dev);
clk_put(host->fclk);
if (host->got_dbclk) {
clk_disable(host->dbclk);
@@ -2269,6 +2207,7 @@
.name = DRIVER_NAME,
.owner = THIS_MODULE,
.pm = &omap_hsmmc_dev_pm_ops,
+ .of_match_table = of_match_ptr(omap_mmc_of_match),
},
};
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 5d876ff..f8eb1fb 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -1,7 +1,7 @@
/*
* Freescale eSDHC controller driver.
*
- * Copyright (c) 2007, 2010 Freescale Semiconductor, Inc.
+ * Copyright (c) 2007, 2010, 2012 Freescale Semiconductor, Inc.
* Copyright (c) 2009 MontaVista Software, Inc.
*
* Authors: Xiaobo Xie <X.Xie@freescale.com>
@@ -14,6 +14,7 @@
*/
#include <linux/io.h>
+#include <linux/of.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/mmc/host.h>
@@ -114,6 +115,34 @@
return pltfm_host->clock / 256 / 16;
}
+static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
+{
+ /* Workaround to reduce the clock frequency for p1010 esdhc */
+ if (of_find_compatible_node(NULL, NULL, "fsl,p1010-esdhc")) {
+ if (clock > 20000000)
+ clock -= 5000000;
+ if (clock > 40000000)
+ clock -= 5000000;
+ }
+
+ /* Set the clock */
+ esdhc_set_clock(host, clock);
+}
+
+#ifdef CONFIG_PM
+static u32 esdhc_proctl;
+static void esdhc_of_suspend(struct sdhci_host *host)
+{
+ esdhc_proctl = sdhci_be32bs_readl(host, SDHCI_HOST_CONTROL);
+}
+
+static void esdhc_of_resume(struct sdhci_host *host)
+{
+ esdhc_of_enable_dma(host);
+ sdhci_be32bs_writel(host, esdhc_proctl, SDHCI_HOST_CONTROL);
+}
+#endif
+
static struct sdhci_ops sdhci_esdhc_ops = {
.read_l = sdhci_be32bs_readl,
.read_w = esdhc_readw,
@@ -121,10 +150,14 @@
.write_l = sdhci_be32bs_writel,
.write_w = esdhc_writew,
.write_b = esdhc_writeb,
- .set_clock = esdhc_set_clock,
+ .set_clock = esdhc_of_set_clock,
.enable_dma = esdhc_of_enable_dma,
.get_max_clock = esdhc_of_get_max_clock,
.get_min_clock = esdhc_of_get_min_clock,
+#ifdef CONFIG_PM
+ .platform_suspend = esdhc_of_suspend,
+ .platform_resume = esdhc_of_resume,
+#endif
};
static struct sdhci_pltfm_data sdhci_esdhc_pdata = {
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 6ebdc40..fbbebe2 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -29,6 +29,12 @@
#include "sdhci.h"
/*
+ * PCI device IDs
+ */
+#define PCI_DEVICE_ID_INTEL_PCH_SDIO0 0x8809
+#define PCI_DEVICE_ID_INTEL_PCH_SDIO1 0x880a
+
+/*
* PCI registers
*/
@@ -47,6 +53,7 @@
struct sdhci_pci_fixes {
unsigned int quirks;
+ unsigned int quirks2;
bool allow_runtime_pm;
int (*probe) (struct sdhci_pci_chip *);
@@ -73,6 +80,7 @@
struct pci_dev *pdev;
unsigned int quirks;
+ unsigned int quirks2;
bool allow_runtime_pm;
const struct sdhci_pci_fixes *fixes;
@@ -172,6 +180,12 @@
return 0;
}
+static int pch_hc_probe_slot(struct sdhci_pci_slot *slot)
+{
+ slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
+ return 0;
+}
+
#ifdef CONFIG_PM_RUNTIME
static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id)
@@ -244,7 +258,8 @@
static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
{
slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
- slot->host->mmc->caps2 = MMC_CAP2_BOOTPART_NOACC;
+ slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC |
+ MMC_CAP2_HC_ERASE_SZ;
return 0;
}
@@ -271,6 +286,7 @@
static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+ .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
.allow_runtime_pm = true,
.probe_slot = mfd_sdio_probe_slot,
};
@@ -281,6 +297,11 @@
.probe_slot = mfd_emmc_probe_slot,
};
+static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
+ .quirks = SDHCI_QUIRK_BROKEN_ADMA,
+ .probe_slot = pch_hc_probe_slot,
+};
+
/* O2Micro extra registers */
#define O2_SD_LOCK_WP 0xD3
#define O2_SD_MULTI_VCC3V 0xEE
@@ -817,6 +838,22 @@
},
{
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_PCH_SDIO0,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
+ },
+
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_PCH_SDIO1,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
+ },
+
+ {
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_8120,
.subvendor = PCI_ANY_ID,
@@ -1206,6 +1243,7 @@
host->hw_name = "PCI";
host->ops = &sdhci_pci_ops;
host->quirks = chip->quirks;
+ host->quirks2 = chip->quirks2;
host->irq = pdev->irq;
@@ -1365,6 +1403,7 @@
chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data;
if (chip->fixes) {
chip->quirks = chip->fixes->quirks;
+ chip->quirks2 = chip->fixes->quirks2;
chip->allow_runtime_pm = chip->fixes->allow_runtime_pm;
}
chip->num_slots = slots;
@@ -1379,6 +1418,8 @@
slots = chip->num_slots; /* Quirk may have changed this */
+ pci_enable_msi(pdev);
+
for (i = 0; i < slots; i++) {
slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i);
if (IS_ERR(slot)) {
@@ -1397,6 +1438,8 @@
return 0;
free:
+ pci_disable_msi(pdev);
+
pci_set_drvdata(pdev, NULL);
kfree(chip);
@@ -1419,6 +1462,8 @@
for (i = 0; i < chip->num_slots; i++)
sdhci_pci_remove_slot(chip->slots[i]);
+ pci_disable_msi(pdev);
+
pci_set_drvdata(pdev, NULL);
kfree(chip);
}
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index b7f8b33..6dfa82e 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -300,20 +300,15 @@
return sdhci_resume_host(host);
}
-
-const struct dev_pm_ops sdhci_pm_ops = {
- .suspend = sdhci_suspend,
- .resume = sdhci_resume,
-};
#endif
+static SIMPLE_DEV_PM_OPS(sdhci_pm_ops, sdhci_suspend, sdhci_resume);
+
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),
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index cb34856..53b2650 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -19,6 +19,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/gpio.h>
#include <linux/mmc/card.h>
@@ -31,6 +32,19 @@
#include "sdhci-pltfm.h"
+#define NVQUIRK_FORCE_SDHCI_SPEC_200 BIT(0)
+#define NVQUIRK_ENABLE_BLOCK_GAP_DET BIT(1)
+
+struct sdhci_tegra_soc_data {
+ struct sdhci_pltfm_data *pdata;
+ u32 nvquirks;
+};
+
+struct sdhci_tegra {
+ const struct tegra_sdhci_platform_data *plat;
+ const struct sdhci_tegra_soc_data *soc_data;
+};
+
static u32 tegra_sdhci_readl(struct sdhci_host *host, int reg)
{
u32 val;
@@ -46,7 +60,12 @@
static u16 tegra_sdhci_readw(struct sdhci_host *host, int reg)
{
- if (unlikely(reg == SDHCI_HOST_VERSION)) {
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_tegra *tegra_host = pltfm_host->priv;
+ const struct sdhci_tegra_soc_data *soc_data = tegra_host->soc_data;
+
+ if (unlikely((soc_data->nvquirks & NVQUIRK_FORCE_SDHCI_SPEC_200) &&
+ (reg == SDHCI_HOST_VERSION))) {
/* Erratum: Version register is invalid in HW. */
return SDHCI_SPEC_200;
}
@@ -56,6 +75,10 @@
static void tegra_sdhci_writel(struct sdhci_host *host, u32 val, int reg)
{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_tegra *tegra_host = pltfm_host->priv;
+ const struct sdhci_tegra_soc_data *soc_data = tegra_host->soc_data;
+
/* Seems like we're getting spurious timeout and crc errors, so
* disable signalling of them. In case of real errors software
* timers should take care of eventually detecting them.
@@ -65,7 +88,8 @@
writel(val, host->ioaddr + reg);
- if (unlikely(reg == SDHCI_INT_ENABLE)) {
+ if (unlikely((soc_data->nvquirks & NVQUIRK_ENABLE_BLOCK_GAP_DET) &&
+ (reg == SDHCI_INT_ENABLE))) {
/* Erratum: Must enable block gap interrupt detection */
u8 gap_ctrl = readb(host->ioaddr + SDHCI_BLOCK_GAP_CONTROL);
if (val & SDHCI_INT_CARD_INT)
@@ -76,10 +100,11 @@
}
}
-static unsigned int tegra_sdhci_get_ro(struct sdhci_host *sdhci)
+static unsigned int tegra_sdhci_get_ro(struct sdhci_host *host)
{
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(sdhci);
- struct tegra_sdhci_platform_data *plat = pltfm_host->priv;
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_tegra *tegra_host = pltfm_host->priv;
+ const struct tegra_sdhci_platform_data *plat = tegra_host->plat;
if (!gpio_is_valid(plat->wp_gpio))
return -1;
@@ -98,7 +123,8 @@
static int tegra_sdhci_8bit(struct sdhci_host *host, int bus_width)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- struct tegra_sdhci_platform_data *plat = pltfm_host->priv;
+ struct sdhci_tegra *tegra_host = pltfm_host->priv;
+ const struct tegra_sdhci_platform_data *plat = tegra_host->plat;
u32 ctrl;
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
@@ -124,7 +150,8 @@
.platform_8bit_width = tegra_sdhci_8bit,
};
-static struct sdhci_pltfm_data sdhci_tegra_pdata = {
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+static struct sdhci_pltfm_data sdhci_tegra20_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
SDHCI_QUIRK_NO_HISPD_BIT |
@@ -132,8 +159,35 @@
.ops = &tegra_sdhci_ops,
};
+static struct sdhci_tegra_soc_data soc_data_tegra20 = {
+ .pdata = &sdhci_tegra20_pdata,
+ .nvquirks = NVQUIRK_FORCE_SDHCI_SPEC_200 |
+ NVQUIRK_ENABLE_BLOCK_GAP_DET,
+};
+#endif
+
+#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+static struct sdhci_pltfm_data sdhci_tegra30_pdata = {
+ .quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
+ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_SINGLE_POWER_WRITE |
+ SDHCI_QUIRK_NO_HISPD_BIT |
+ SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC,
+ .ops = &tegra_sdhci_ops,
+};
+
+static struct sdhci_tegra_soc_data soc_data_tegra30 = {
+ .pdata = &sdhci_tegra30_pdata,
+};
+#endif
+
static const struct of_device_id sdhci_tegra_dt_match[] __devinitdata = {
- { .compatible = "nvidia,tegra20-sdhci", },
+#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+ { .compatible = "nvidia,tegra30-sdhci", .data = &soc_data_tegra30 },
+#endif
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+ { .compatible = "nvidia,tegra20-sdhci", .data = &soc_data_tegra20 },
+#endif
{}
};
MODULE_DEVICE_TABLE(of, sdhci_dt_ids);
@@ -164,13 +218,22 @@
static int __devinit sdhci_tegra_probe(struct platform_device *pdev)
{
+ const struct of_device_id *match;
+ const struct sdhci_tegra_soc_data *soc_data;
+ struct sdhci_host *host;
struct sdhci_pltfm_host *pltfm_host;
struct tegra_sdhci_platform_data *plat;
- struct sdhci_host *host;
+ struct sdhci_tegra *tegra_host;
struct clk *clk;
int rc;
- host = sdhci_pltfm_init(pdev, &sdhci_tegra_pdata);
+ match = of_match_device(sdhci_tegra_dt_match, &pdev->dev);
+ if (match)
+ soc_data = match->data;
+ else
+ soc_data = &soc_data_tegra20;
+
+ host = sdhci_pltfm_init(pdev, soc_data->pdata);
if (IS_ERR(host))
return PTR_ERR(host);
@@ -187,7 +250,17 @@
goto err_no_plat;
}
- pltfm_host->priv = plat;
+ tegra_host = devm_kzalloc(&pdev->dev, sizeof(*tegra_host), GFP_KERNEL);
+ if (!tegra_host) {
+ dev_err(mmc_dev(host->mmc), "failed to allocate tegra_host\n");
+ rc = -ENOMEM;
+ goto err_no_plat;
+ }
+
+ tegra_host->plat = plat;
+ tegra_host->soc_data = soc_data;
+
+ pltfm_host->priv = tegra_host;
if (gpio_is_valid(plat->power_gpio)) {
rc = gpio_request(plat->power_gpio, "sdhci_power");
@@ -283,7 +356,8 @@
{
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- struct tegra_sdhci_platform_data *plat = pltfm_host->priv;
+ struct sdhci_tegra *tegra_host = pltfm_host->priv;
+ const struct tegra_sdhci_platform_data *plat = tegra_host->plat;
int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
sdhci_remove_host(host, dead);
@@ -326,5 +400,5 @@
module_platform_driver(sdhci_tegra_driver);
MODULE_DESCRIPTION("SDHCI driver for Tegra");
-MODULE_AUTHOR(" Google, Inc.");
+MODULE_AUTHOR("Google, Inc.");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 8d66706..8262cad 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2267,8 +2267,8 @@
{
irqreturn_t result;
struct sdhci_host *host = dev_id;
- u32 intmask;
- int cardint = 0;
+ u32 intmask, unexpected = 0;
+ int cardint = 0, max_loops = 16;
spin_lock(&host->lock);
@@ -2286,6 +2286,7 @@
goto out;
}
+again:
DBG("*** %s got interrupt: 0x%08x\n",
mmc_hostname(host->mmc), intmask);
@@ -2344,19 +2345,23 @@
intmask &= ~SDHCI_INT_CARD_INT;
if (intmask) {
- pr_err("%s: Unexpected interrupt 0x%08x.\n",
- mmc_hostname(host->mmc), intmask);
- sdhci_dumpregs(host);
-
+ unexpected |= intmask;
sdhci_writel(host, intmask, SDHCI_INT_STATUS);
}
result = IRQ_HANDLED;
- mmiowb();
+ intmask = sdhci_readl(host, SDHCI_INT_STATUS);
+ if (intmask && --max_loops)
+ goto again;
out:
spin_unlock(&host->lock);
+ if (unexpected) {
+ pr_err("%s: Unexpected interrupt 0x%08x.\n",
+ mmc_hostname(host->mmc), unexpected);
+ sdhci_dumpregs(host);
+ }
/*
* We have to delay this as it calls back into the driver.
*/
@@ -2379,6 +2384,9 @@
int ret;
bool has_tuning_timer;
+ if (host->ops->platform_suspend)
+ host->ops->platform_suspend(host);
+
sdhci_disable_card_detection(host);
/* Disable tuning since we are suspending */
@@ -2423,12 +2431,24 @@
if (ret)
return ret;
- sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER));
- mmiowb();
+ if ((host->mmc->pm_flags & MMC_PM_KEEP_POWER) &&
+ (host->quirks2 & SDHCI_QUIRK2_HOST_OFF_CARD_ON)) {
+ /* Card keeps power but host controller does not */
+ sdhci_init(host, 0);
+ host->pwr = 0;
+ host->clock = 0;
+ sdhci_do_set_ios(host, &host->mmc->ios);
+ } else {
+ sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER));
+ mmiowb();
+ }
ret = mmc_resume_host(host->mmc);
sdhci_enable_card_detection(host);
+ if (host->ops->platform_resume)
+ host->ops->platform_resume(host);
+
/* Set the re-tuning expiration flag */
if ((host->version >= SDHCI_SPEC_300) && host->tuning_count &&
(host->tuning_mode == SDHCI_TUNING_MODE_1))
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index ad265b9..f761f23 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -275,6 +275,8 @@
void (*platform_reset_exit)(struct sdhci_host *host, u8 mask);
int (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs);
void (*hw_reset)(struct sdhci_host *host);
+ void (*platform_suspend)(struct sdhci_host *host);
+ void (*platform_resume)(struct sdhci_host *host);
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 75a4854..60f2057 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -746,7 +746,6 @@
case MMC_SET_WRITE_PROT:
case MMC_CLR_WRITE_PROT:
case MMC_ERASE:
- case MMC_GEN_CMD:
tmp |= CMD_SET_RBSY;
break;
}
@@ -829,7 +828,6 @@
case MMC_SET_WRITE_PROT:
case MMC_CLR_WRITE_PROT:
case MMC_ERASE:
- case MMC_GEN_CMD:
mask = MASK_START_CMD | MASK_MRBSYE;
break;
default:
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 58da3c4..934b68e 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -90,6 +90,15 @@
return 0;
}
+static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev)
+{
+ mmc_detect_change(dev_get_drvdata(&pdev->dev), msecs_to_jiffies(100));
+}
+
+static const struct sh_mobile_sdhi_ops sdhi_ops = {
+ .cd_wakeup = sh_mobile_sdhi_cd_wakeup,
+};
+
static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
{
struct sh_mobile_sdhi *priv;
@@ -109,6 +118,12 @@
mmc_data = &priv->mmc_data;
p->pdata = mmc_data;
+ if (p->init) {
+ ret = p->init(pdev, &sdhi_ops);
+ if (ret)
+ goto einit;
+ }
+
snprintf(clk_name, sizeof(clk_name), "sdhi%d", pdev->id);
priv->clk = clk_get(&pdev->dev, clk_name);
if (IS_ERR(priv->clk)) {
@@ -117,8 +132,6 @@
goto eclkget;
}
- clk_enable(priv->clk);
-
mmc_data->hclk = clk_get_rate(priv->clk);
mmc_data->set_pwr = sh_mobile_sdhi_set_pwr;
mmc_data->get_cd = sh_mobile_sdhi_get_cd;
@@ -129,6 +142,7 @@
mmc_data->write16_hook = sh_mobile_sdhi_write16_hook;
mmc_data->ocr_mask = p->tmio_ocr_mask;
mmc_data->capabilities |= p->tmio_caps;
+ mmc_data->cd_gpio = p->cd_gpio;
if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0) {
priv->param_tx.slave_id = p->dma_slave_tx;
@@ -211,7 +225,7 @@
dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n",
mmc_hostname(host->mmc), (unsigned long)
- (platform_get_resource(pdev,IORESOURCE_MEM, 0)->start),
+ (platform_get_resource(pdev, IORESOURCE_MEM, 0)->start),
mmc_data->hclk / 1000000);
return ret;
@@ -232,9 +246,11 @@
eirq_card_detect:
tmio_mmc_host_remove(host);
eprobe:
- clk_disable(priv->clk);
clk_put(priv->clk);
eclkget:
+ if (p->cleanup)
+ p->cleanup(pdev);
+einit:
kfree(priv);
return ret;
}
@@ -258,8 +274,11 @@
free_irq(irq, host);
}
- clk_disable(priv->clk);
clk_put(priv->clk);
+
+ if (p->cleanup)
+ p->cleanup(pdev);
+
kfree(priv);
return 0;
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index f96c536..d857f5c 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -47,16 +47,14 @@
struct mmc_request *mrq;
struct mmc_data *data;
struct mmc_host *mmc;
- unsigned int sdio_irq_enabled;
+
+ /* Controller power state */
+ bool power;
/* Callbacks for clock / power control */
void (*set_pwr)(struct platform_device *host, int state);
void (*set_clk_div)(struct platform_device *host, int state);
- int pm_error;
- /* recognise system-wide suspend in runtime PM methods */
- bool pm_global;
-
/* pio related stuff */
struct scatterlist *sg_ptr;
struct scatterlist *sg_orig;
@@ -86,6 +84,7 @@
spinlock_t lock; /* protect host private data */
unsigned long last_req_ts;
struct mutex ios_lock; /* protect set_ios() context */
+ bool native_hotplug;
};
int tmio_mmc_host_probe(struct tmio_mmc_host **host,
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index e219889..9a7996a 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -34,6 +34,7 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/mfd/tmio.h>
+#include <linux/mmc/cd-gpio.h>
#include <linux/mmc/host.h>
#include <linux/mmc/tmio.h>
#include <linux/module.h>
@@ -127,7 +128,6 @@
struct tmio_mmc_host *host = mmc_priv(mmc);
if (enable) {
- host->sdio_irq_enabled = 1;
host->sdio_irq_mask = TMIO_SDIO_MASK_ALL &
~TMIO_SDIO_STAT_IOIRQ;
sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001);
@@ -136,7 +136,6 @@
host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0000);
- host->sdio_irq_enabled = 0;
}
}
@@ -304,6 +303,7 @@
{
struct mmc_data *data = host->data;
int c = cmd->opcode;
+ u32 irq_mask = TMIO_MASK_CMD;
/* Command 12 is handled by hardware */
if (cmd->opcode == 12 && !cmd->arg) {
@@ -339,7 +339,9 @@
c |= TRANSFER_READ;
}
- tmio_mmc_enable_mmc_irqs(host, TMIO_MASK_CMD);
+ if (!host->native_hotplug)
+ irq_mask &= ~(TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT);
+ tmio_mmc_enable_mmc_irqs(host, irq_mask);
/* Fire off the command */
sd_ctrl_write32(host, CTL_ARG_REG, cmd->arg);
@@ -758,7 +760,7 @@
static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct tmio_mmc_host *host = mmc_priv(mmc);
- struct tmio_mmc_data *pdata = host->pdata;
+ struct device *dev = &host->pdev->dev;
unsigned long flags;
mutex_lock(&host->ios_lock);
@@ -766,13 +768,13 @@
spin_lock_irqsave(&host->lock, flags);
if (host->mrq) {
if (IS_ERR(host->mrq)) {
- dev_dbg(&host->pdev->dev,
+ dev_dbg(dev,
"%s.%d: concurrent .set_ios(), clk %u, mode %u\n",
current->comm, task_pid_nr(current),
ios->clock, ios->power_mode);
host->mrq = ERR_PTR(-EINTR);
} else {
- dev_dbg(&host->pdev->dev,
+ dev_dbg(dev,
"%s.%d: CMD%u active since %lu, now %lu!\n",
current->comm, task_pid_nr(current),
host->mrq->cmd->opcode, host->last_req_ts, jiffies);
@@ -788,13 +790,15 @@
spin_unlock_irqrestore(&host->lock, flags);
/*
- * pdata->power == false only if COLD_CD is available, otherwise only
- * in short time intervals during probing or resuming
+ * host->power toggles between false and true in both cases - either
+ * or not the controller can be runtime-suspended during inactivity.
+ * But if the controller has to be kept on, the runtime-pm usage_count
+ * is kept positive, so no suspending actually takes place.
*/
if (ios->power_mode == MMC_POWER_ON && ios->clock) {
- if (!pdata->power) {
- pm_runtime_get_sync(&host->pdev->dev);
- pdata->power = true;
+ if (!host->power) {
+ pm_runtime_get_sync(dev);
+ host->power = true;
}
tmio_mmc_set_clock(host, ios->clock);
/* power up SD bus */
@@ -805,9 +809,9 @@
} 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->power) {
- pdata->power = false;
- pm_runtime_put(&host->pdev->dev);
+ if (host->power) {
+ host->power = false;
+ pm_runtime_put(dev);
}
tmio_mmc_clk_stop(host);
}
@@ -913,7 +917,11 @@
else
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
- pdata->power = false;
+ _host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD ||
+ mmc->caps & MMC_CAP_NEEDS_POLL ||
+ mmc->caps & MMC_CAP_NONREMOVABLE);
+
+ _host->power = false;
pm_runtime_enable(&pdev->dev);
ret = pm_runtime_resume(&pdev->dev);
if (ret < 0)
@@ -926,14 +934,13 @@
* 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
+ * While we increment the runtime PM 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
* 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))
+ if (_host->native_hotplug)
pm_runtime_get_noresume(&pdev->dev);
tmio_mmc_clk_stop(_host);
@@ -963,9 +970,19 @@
irq_mask |= TMIO_MASK_READOP;
if (!_host->chan_tx)
irq_mask |= TMIO_MASK_WRITEOP;
+ if (!_host->native_hotplug)
+ irq_mask &= ~(TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT);
tmio_mmc_enable_mmc_irqs(_host, irq_mask);
+ if (pdata->flags & TMIO_MMC_USE_GPIO_CD) {
+ ret = mmc_cd_gpio_request(mmc, pdata->cd_gpio);
+ if (ret < 0) {
+ tmio_mmc_host_remove(_host);
+ return ret;
+ }
+ }
+
*host = _host;
return 0;
@@ -983,22 +1000,22 @@
void tmio_mmc_host_remove(struct tmio_mmc_host *host)
{
struct platform_device *pdev = host->pdev;
+ struct tmio_mmc_data *pdata = host->pdata;
+ struct mmc_host *mmc = host->mmc;
- /*
- * We don't have to manipulate pdata->power here: if there is a card in
- * the slot, the runtime PM is active and our .runtime_resume() will not
- * be run. If there is no card in the slot and the platform can suspend
- * 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
- || host->mmc->caps & MMC_CAP_NEEDS_POLL
- || host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ if (pdata->flags & TMIO_MMC_USE_GPIO_CD)
+ /*
+ * This means we can miss a card-eject, but this is anyway
+ * possible, because of delayed processing of hotplug events.
+ */
+ mmc_cd_gpio_free(mmc);
+
+ if (!host->native_hotplug)
pm_runtime_get_sync(&pdev->dev);
dev_pm_qos_hide_latency_limit(&pdev->dev);
- mmc_remove_host(host->mmc);
+ mmc_remove_host(mmc);
cancel_work_sync(&host->done);
cancel_delayed_work_sync(&host->delayed_reset_work);
tmio_mmc_release_dma(host);
@@ -1007,7 +1024,7 @@
pm_runtime_disable(&pdev->dev);
iounmap(host->ctl);
- mmc_free_host(host->mmc);
+ mmc_free_host(mmc);
}
EXPORT_SYMBOL(tmio_mmc_host_remove);
@@ -1021,8 +1038,6 @@
if (!ret)
tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL);
- host->pm_error = pm_runtime_put_sync(dev);
-
return ret;
}
EXPORT_SYMBOL(tmio_mmc_host_suspend);
@@ -1032,20 +1047,10 @@
struct mmc_host *mmc = dev_get_drvdata(dev);
struct tmio_mmc_host *host = mmc_priv(mmc);
+ tmio_mmc_reset(host);
+ tmio_mmc_enable_dma(host, true);
+
/* The MMC core will perform the complete set up */
- host->pdata->power = false;
-
- host->pm_global = true;
- if (!host->pm_error)
- pm_runtime_get_sync(dev);
-
- if (host->pm_global) {
- /* Runtime PM resume callback didn't run */
- tmio_mmc_reset(host);
- tmio_mmc_enable_dma(host, true);
- host->pm_global = false;
- }
-
return mmc_resume_host(mmc);
}
EXPORT_SYMBOL(tmio_mmc_host_resume);
@@ -1062,19 +1067,10 @@
{
struct mmc_host *mmc = dev_get_drvdata(dev);
struct tmio_mmc_host *host = mmc_priv(mmc);
- struct tmio_mmc_data *pdata = host->pdata;
tmio_mmc_reset(host);
tmio_mmc_enable_dma(host, true);
- if (pdata->power) {
- /* Only entered after a card-insert interrupt */
- if (!mmc->card)
- tmio_mmc_set_ios(mmc, &mmc->ios);
- mmc_detect_change(mmc, msecs_to_jiffies(100));
- }
- host->pm_global = false;
-
return 0;
}
EXPORT_SYMBOL(tmio_mmc_host_runtime_resume);
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 0dc9804..f5171db 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -1,8 +1,10 @@
#ifndef MFD_TMIO_H
#define MFD_TMIO_H
+#include <linux/device.h>
#include <linux/fb.h>
#include <linux/io.h>
+#include <linux/jiffies.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@@ -64,8 +66,8 @@
#define TMIO_MMC_SDIO_IRQ (1 << 2)
/*
* Some platforms can detect card insertion events with controller powered
- * down, in which case they have to call tmio_mmc_cd_wakeup() to power up the
- * controller and report the event to the driver.
+ * down, using a GPIO IRQ, in which case they have to fill in cd_irq, cd_gpio,
+ * and cd_flags fields of struct tmio_mmc_data.
*/
#define TMIO_MMC_HAS_COLD_CD (1 << 3)
/*
@@ -73,6 +75,12 @@
* idle before writing to some registers.
*/
#define TMIO_MMC_HAS_IDLE_WAIT (1 << 4)
+/*
+ * A GPIO is used for card hotplug detection. We need an extra flag for this,
+ * because 0 is a valid GPIO number too, and requiring users to specify
+ * cd_gpio < 0 to disable GPIO hotplug would break backwards compatibility.
+ */
+#define TMIO_MMC_USE_GPIO_CD (1 << 5)
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
@@ -97,19 +105,23 @@
u32 ocr_mask; /* available voltages */
struct tmio_mmc_dma *dma;
struct device *dev;
- bool power;
+ unsigned int cd_gpio;
void (*set_pwr)(struct platform_device *host, int state);
void (*set_clk_div)(struct platform_device *host, int state);
int (*get_cd)(struct platform_device *host);
int (*write16_hook)(struct tmio_mmc_host *host, int addr);
};
+/*
+ * This function is deprecated and will be removed soon. Please, convert your
+ * platform to use drivers/mmc/core/cd-gpio.c
+ */
+#include <linux/mmc/host.h>
static inline void tmio_mmc_cd_wakeup(struct tmio_mmc_data *pdata)
{
- if (pdata && !pdata->power) {
- pdata->power = true;
- pm_runtime_get(pdata->dev);
- }
+ if (pdata)
+ mmc_detect_change(dev_get_drvdata(pdata->dev),
+ msecs_to_jiffies(100));
}
/*
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 6faa145..01beae7 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -72,6 +72,8 @@
bool hpi_en; /* HPI enablebit */
bool hpi; /* HPI support bit */
unsigned int hpi_cmd; /* cmd used as HPI */
+ unsigned int data_sector_size; /* 512 bytes or 4KB */
+ unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
unsigned int boot_ro_lock; /* ro lock support */
bool boot_ro_lockable;
u8 raw_partition_support; /* 160 */
diff --git a/include/linux/mmc/cd-gpio.h b/include/linux/mmc/cd-gpio.h
index a8e4697..cefaba0 100644
--- a/include/linux/mmc/cd-gpio.h
+++ b/include/linux/mmc/cd-gpio.h
@@ -12,8 +12,7 @@
#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);
+int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio);
void mmc_cd_gpio_free(struct mmc_host *host);
#endif
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 2e6a681..1b431c7 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -175,7 +175,6 @@
extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
extern void mmc_release_host(struct mmc_host *host);
-extern void mmc_do_release_host(struct mmc_host *host);
extern int mmc_try_claim_host(struct mmc_host *host);
extern int mmc_flush_cache(struct mmc_card *);
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index aae5d1f..8f66e28 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -76,7 +76,7 @@
* @num_slots: Number of slots available.
* @verid: Denote Version ID.
* @data_offset: Set the offset of DATA register according to VERID.
- * @pdev: Platform device associated with the MMC controller.
+ * @dev: Device associated with the MMC controller.
* @pdata: Platform data associated with the MMC controller.
* @slot: Slots sharing this MMC controller.
* @fifo_depth: depth of FIFO.
@@ -87,6 +87,8 @@
* @push_data: Pointer to FIFO push function.
* @pull_data: Pointer to FIFO pull function.
* @quirks: Set of quirks that apply to specific versions of the IP.
+ * @irq_flags: The flags to be passed to request_irq.
+ * @irq: The irq value to be passed to request_irq.
*
* Locking
* =======
@@ -153,7 +155,7 @@
u32 fifoth_val;
u16 verid;
u16 data_offset;
- struct platform_device *pdev;
+ struct device dev;
struct dw_mci_board *pdata;
struct dw_mci_slot *slot[MAX_MCI_SLOTS];
@@ -174,6 +176,8 @@
u32 quirks;
struct regulator *vmmc; /* Power regulator */
+ unsigned long irq_flags; /* IRQ flags */
+ unsigned int irq;
};
/* DMA ops for Internal/External DMAC interface */
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 91924e8..cbde4b7 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -81,34 +81,11 @@
struct mmc_host_ops {
/*
- * Hosts that support power saving can use the 'enable' and 'disable'
- * methods to exit and enter power saving states. 'enable' is called
- * when the host is claimed and 'disable' is called (or scheduled with
- * a delay) when the host is released. The 'disable' is scheduled if
- * the disable delay set by 'mmc_set_disable_delay()' is non-zero,
- * otherwise 'disable' is called immediately. 'disable' may be
- * scheduled repeatedly, to permit ever greater power saving at the
- * expense of ever greater latency to re-enable. Rescheduling is
- * determined by the return value of the 'disable' method. A positive
- * value gives the delay in milliseconds.
- *
- * In the case where a host function (like set_ios) may be called
- * with or without the host claimed, enabling and disabling can be
- * done directly and will nest correctly. Call 'mmc_host_enable()' and
- * 'mmc_host_lazy_disable()' for this purpose, but note that these
- * functions must be paired.
- *
- * Alternatively, 'mmc_host_enable()' may be paired with
- * 'mmc_host_disable()' which calls 'disable' immediately. In this
- * case the 'disable' method will be called with 'lazy' set to 0.
- * This is mainly useful for error paths.
- *
- * Because lazy disable may be called from a work queue, the 'disable'
- * method must claim the host when 'lazy' != 0, which will work
- * correctly because recursion is detected and handled.
+ * 'enable' is called when the host is claimed and 'disable' is called
+ * when the host is released. 'enable' and 'disable' are deprecated.
*/
int (*enable)(struct mmc_host *host);
- int (*disable)(struct mmc_host *host, int lazy);
+ int (*disable)(struct mmc_host *host);
/*
* It is optional for the host to implement pre_req and post_req in
* order to support double buffering of requests (prepare one
@@ -219,7 +196,7 @@
#define MMC_CAP_SPI (1 << 4) /* Talks only SPI protocols */
#define MMC_CAP_NEEDS_POLL (1 << 5) /* Needs polling for card-detection */
#define MMC_CAP_8_BIT_DATA (1 << 6) /* Can the host do 8 bit transfers */
-#define MMC_CAP_DISABLE (1 << 7) /* Can the host be disabled */
+
#define MMC_CAP_NONREMOVABLE (1 << 8) /* Nonremovable e.g. eMMC */
#define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) /* Waits while card is busy */
#define MMC_CAP_ERASE (1 << 10) /* Allow erase/trim commands */
@@ -259,6 +236,8 @@
#define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \
MMC_CAP2_HS200_1_2V_SDR)
#define MMC_CAP2_BROKEN_VOLTAGE (1 << 7) /* Use the broken voltage */
+#define MMC_CAP2_DETECT_ON_ERR (1 << 8) /* On I/O err check card removal */
+#define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */
mmc_pm_flag_t pm_caps; /* supported pm features */
unsigned int power_notify_type;
@@ -301,13 +280,7 @@
unsigned int removed:1; /* host is being removed */
#endif
- /* Only used with MMC_CAP_DISABLE */
- int enabled; /* host is enabled */
int rescan_disable; /* disable card detection */
- int nesting_cnt; /* "enable" nesting count */
- int en_dis_recurs; /* detect recursion */
- unsigned int disable_delay; /* disable delay in msecs */
- struct delayed_work disable; /* disabling work */
struct mmc_card *card; /* device attached to this host */
@@ -407,17 +380,8 @@
int mmc_card_sleep(struct mmc_host *host);
int mmc_card_can_sleep(struct mmc_host *host);
-int mmc_host_enable(struct mmc_host *host);
-int mmc_host_disable(struct mmc_host *host);
-int mmc_host_lazy_disable(struct mmc_host *host);
int mmc_pm_notify(struct notifier_block *notify_block, unsigned long, void *);
-static inline void mmc_set_disable_delay(struct mmc_host *host,
- unsigned int disable_delay)
-{
- host->disable_delay = disable_delay;
-}
-
/* Module parameter */
extern bool mmc_assume_removable;
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index fb9f6e1..b822a2c 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -274,6 +274,7 @@
#define EXT_CSD_FLUSH_CACHE 32 /* W */
#define EXT_CSD_CACHE_CTRL 33 /* R/W */
#define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */
+#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */
@@ -315,6 +316,8 @@
#define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */
#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */
+#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */
+#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */
#define EXT_CSD_HPI_FEATURES 503 /* RO */
/*
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index c750f85..e9051e1 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -90,6 +90,8 @@
unsigned int quirks2; /* More deviations from spec. */
+#define SDHCI_QUIRK2_HOST_OFF_CARD_ON (1<<0)
+
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
index 04ff452..05f0e3d 100644
--- a/include/linux/mmc/sh_mmcif.h
+++ b/include/linux/mmc/sh_mmcif.h
@@ -77,18 +77,15 @@
/* CE_CLK_CTRL */
#define CLK_ENABLE (1 << 24) /* 1: output mmc clock */
-#define CLK_CLEAR ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
-#define CLK_SUP_PCLK ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
-#define CLKDIV_4 (1<<16) /* mmc clock frequency.
- * n: bus clock/(2^(n+1)) */
-#define CLKDIV_256 (7<<16) /* mmc clock frequency. (see above) */
-#define SRSPTO_256 ((1 << 13) | (0 << 12)) /* resp timeout */
-#define SRBSYTO_29 ((1 << 11) | (1 << 10) | \
- (1 << 9) | (1 << 8)) /* resp busy timeout */
-#define SRWDTO_29 ((1 << 7) | (1 << 6) | \
- (1 << 5) | (1 << 4)) /* read/write timeout */
-#define SCCSTO_29 ((1 << 3) | (1 << 2) | \
- (1 << 1) | (1 << 0)) /* ccs timeout */
+#define CLK_CLEAR (0xf << 16)
+#define CLK_SUP_PCLK (0xf << 16)
+#define CLKDIV_4 (1 << 16) /* mmc clock frequency.
+ * n: bus clock/(2^(n+1)) */
+#define CLKDIV_256 (7 << 16) /* mmc clock frequency. (see above) */
+#define SRSPTO_256 (2 << 12) /* resp timeout */
+#define SRBSYTO_29 (0xf << 8) /* resp busy timeout */
+#define SRWDTO_29 (0xf << 4) /* read/write timeout */
+#define SCCSTO_29 (0xf << 0) /* ccs timeout */
/* CE_VERSION */
#define SOFT_RST_ON (1 << 31)
diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index 71b8054..e94e620 100644
--- a/include/linux/mmc/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
@@ -10,15 +10,29 @@
#define SH_MOBILE_SDHI_IRQ_SDCARD "sdcard"
#define SH_MOBILE_SDHI_IRQ_SDIO "sdio"
+/**
+ * struct sh_mobile_sdhi_ops - SDHI driver callbacks
+ * @cd_wakeup: trigger a card-detection run
+ */
+struct sh_mobile_sdhi_ops {
+ void (*cd_wakeup)(const struct platform_device *pdev);
+};
+
struct sh_mobile_sdhi_info {
int dma_slave_tx;
int dma_slave_rx;
unsigned long tmio_flags;
unsigned long tmio_caps;
u32 tmio_ocr_mask; /* available MMC voltages */
+ unsigned int cd_gpio;
struct tmio_mmc_data *pdata;
void (*set_pwr)(struct platform_device *pdev, int state);
int (*get_cd)(struct platform_device *pdev);
+
+ /* callbacks for board specific setup code */
+ int (*init)(struct platform_device *pdev,
+ const struct sh_mobile_sdhi_ops *ops);
+ void (*cleanup)(struct platform_device *pdev);
};
#endif /* LINUX_MMC_SH_MOBILE_SDHI_H */