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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-11 06:34:22 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-11 06:34:22 -0400
commitf43b179bbd84d2106c6fb8c7f2db1bfacff19f62 (patch)
tree581e60846d1298276fac0b768ba12e06d7600d1e /drivers/mmc
parenta2ce35273c2f1aa0dcddd8822681d64ee5f31852 (diff)
parent583f958b8a23343c904ec0790c25c96f5f82d409 (diff)
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Merge tag 'mmc-v3.18-1' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC updates from Ulf Hansson: "MMC core: - Fix SDIO IRQ bug - MMC regulator improvements - Fix slot-gpio card detect bug - Add support for Driver Stage Register - Convert the common MMC OF parser to use GPIO descriptors - Convert MMC_CAP2_NO_MULTI_READ into a callback, ->multi_io_quirk() - Some additional minor fixes MMC host: - mmci: Support Qualcomm specific DML layer for DMA - dw_mmc: Use common MMC regulators - dw_mmc: Add support for Rock-chips RK3288 - tmio: Enable runtime PM support - tmio: Add support for R-Car Gen2 SoCs - tmio: Several fixes and improvements - omap_hsmmc: Removed Balaji from MAINTAINERS - jz4740: add DMA and pre/post support - sdhci: Add support for Intel Braswell - sdhci: Several fixes and improvements" * tag 'mmc-v3.18-1' of git://git.linaro.org/people/ulf.hansson/mmc: (119 commits) ARM: dts: fix MMC2 regulators for Exynos5420 Arndale Octa board mmc: sdhci-acpi: Fix Braswell eMMC timeout clock frequency mmc: sdhci-acpi: Pass HID and UID to probe_slot mmc: sdhci-acpi: Get UID directly from acpi_device mmc, sdhci, bcm-kona, LLVMLinux: Remove use of __initconst mmc: sdhci-pci: Fix Braswell eMMC timeout clock frequency mmc: sdhci: Let a driver override timeout clock frequency mmc: sdhci-pci: Add Bay Trail and Braswell SD card detect mmc: sdhci-pci: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel BYT host controllers mmc: sdhci-acpi: Add a HID and UID for a SD Card host controller mmc: sdhci-acpi: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel host controllers mmc: sdhci: Add quirk for always getting TC with stop cmd mmc: core: restore detect line inversion semantics mmc: Fix incorrect warning when setting 0 Hz via debugfs mmc: Fix use of wrong device in mmc_gpiod_free_cd() mmc: atmel-mci: fix mismatched section on atmci_cleanup_slot mmc: rtsx_pci: Set power related cap2 macros mmc: core: Add new power_mode MMC_POWER_UNDEFINED mmc: sdhci: execute tuning when device is not busy mmc: atmel-mci: Release mmc resources on failure in probe ..
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/card/block.c21
-rw-r--r--drivers/mmc/card/queue.c6
-rw-r--r--drivers/mmc/card/sdio_uart.c9
-rw-r--r--drivers/mmc/core/core.c48
-rw-r--r--drivers/mmc/core/host.c96
-rw-r--r--drivers/mmc/core/mmc.c263
-rw-r--r--drivers/mmc/core/mmc_ops.c24
-rw-r--r--drivers/mmc/core/mmc_ops.h1
-rw-r--r--drivers/mmc/core/sd.c41
-rw-r--r--drivers/mmc/core/sdio.c19
-rw-r--r--drivers/mmc/core/sdio_bus.c4
-rw-r--r--drivers/mmc/core/sdio_irq.c11
-rw-r--r--drivers/mmc/core/slot-gpio.c70
-rw-r--r--drivers/mmc/host/Kconfig23
-rw-r--r--drivers/mmc/host/Makefile2
-rw-r--r--drivers/mmc/host/atmel-mci.c55
-rw-r--r--drivers/mmc/host/au1xmmc.c5
-rw-r--r--drivers/mmc/host/dw_mmc-pci.c3
-rw-r--r--drivers/mmc/host/dw_mmc-pltfm.c10
-rw-r--r--drivers/mmc/host/dw_mmc-rockchip.c136
-rw-r--r--drivers/mmc/host/dw_mmc.c297
-rw-r--r--drivers/mmc/host/dw_mmc.h5
-rw-r--r--drivers/mmc/host/jz4740_mmc.c269
-rw-r--r--drivers/mmc/host/mmc_spi.c1
-rw-r--r--drivers/mmc/host/mmci.c115
-rw-r--r--drivers/mmc/host/mmci_qcom_dml.c177
-rw-r--r--drivers/mmc/host/mmci_qcom_dml.h31
-rw-r--r--drivers/mmc/host/moxart-mmc.c1
-rw-r--r--drivers/mmc/host/mxcmmc.c1
-rw-r--r--drivers/mmc/host/mxs-mmc.c1
-rw-r--r--drivers/mmc/host/omap.c1
-rw-r--r--drivers/mmc/host/omap_hsmmc.c15
-rw-r--r--drivers/mmc/host/pxamci.c5
-rw-r--r--drivers/mmc/host/rtsx_pci_sdmmc.c9
-rw-r--r--drivers/mmc/host/rtsx_usb_sdmmc.c9
-rw-r--r--drivers/mmc/host/s3cmci.c4
-rw-r--r--drivers/mmc/host/sdhci-acpi.c111
-rw-r--r--drivers/mmc/host/sdhci-bcm-kona.c3
-rw-r--r--drivers/mmc/host/sdhci-bcm2835.c1
-rw-r--r--drivers/mmc/host/sdhci-cns3xxx.c1
-rw-r--r--drivers/mmc/host/sdhci-dove.c1
-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c21
-rw-r--r--drivers/mmc/host/sdhci-msm.c27
-rw-r--r--drivers/mmc/host/sdhci-of-arasan.c1
-rw-r--r--drivers/mmc/host/sdhci-of-esdhc.c1
-rw-r--r--drivers/mmc/host/sdhci-of-hlwd.c1
-rw-r--r--drivers/mmc/host/sdhci-pci.c70
-rw-r--r--drivers/mmc/host/sdhci-pci.h7
-rw-r--r--drivers/mmc/host/sdhci-pltfm.c10
-rw-r--r--drivers/mmc/host/sdhci-pxav2.c1
-rw-r--r--drivers/mmc/host/sdhci-pxav3.c8
-rw-r--r--drivers/mmc/host/sdhci-s3c.c5
-rw-r--r--drivers/mmc/host/sdhci-sirf.c26
-rw-r--r--drivers/mmc/host/sdhci-spear.c1
-rw-r--r--drivers/mmc/host/sdhci-tegra.c1
-rw-r--r--drivers/mmc/host/sdhci.c155
-rw-r--r--drivers/mmc/host/sdhci.h4
-rw-r--r--drivers/mmc/host/sh_mmcif.c1
-rw-r--r--drivers/mmc/host/sh_mobile_sdhi.c53
-rw-r--r--drivers/mmc/host/sunxi-mmc.c4
-rw-r--r--drivers/mmc/host/tifm_sd.c4
-rw-r--r--drivers/mmc/host/tmio_mmc.c7
-rw-r--r--drivers/mmc/host/tmio_mmc.h31
-rw-r--r--drivers/mmc/host/tmio_mmc_dma.c8
-rw-r--r--drivers/mmc/host/tmio_mmc_pio.c294
-rw-r--r--drivers/mmc/host/wbsd.c21
66 files changed, 1934 insertions, 733 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index ede41f05c392..1fa4c80ff886 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -977,7 +977,7 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
return ERR_CONTINUE;
/* Now for stop errors. These aren't fatal to the transfer. */
- pr_err("%s: error %d sending stop command, original cmd response %#x, card status %#x\n",
+ pr_info("%s: error %d sending stop command, original cmd response %#x, card status %#x\n",
req->rq_disk->disk_name, brq->stop.error,
brq->cmd.resp[0], status);
@@ -1398,10 +1398,15 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
if (disable_multi)
brq->data.blocks = 1;
- /* Some controllers can't do multiblock reads due to hw bugs */
- if (card->host->caps2 & MMC_CAP2_NO_MULTI_READ &&
- rq_data_dir(req) == READ)
- brq->data.blocks = 1;
+ /*
+ * Some controllers have HW issues while operating
+ * in multiple I/O mode
+ */
+ if (card->host->ops->multi_io_quirk)
+ brq->data.blocks = card->host->ops->multi_io_quirk(card,
+ (rq_data_dir(req) == READ) ?
+ MMC_DATA_READ : MMC_DATA_WRITE,
+ brq->data.blocks);
}
if (brq->data.blocks > 1 || do_rel_wr) {
@@ -1923,8 +1928,8 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
case MMC_BLK_ECC_ERR:
if (brq->data.blocks > 1) {
/* Redo read one sector at a time */
- pr_warning("%s: retrying using single block read\n",
- req->rq_disk->disk_name);
+ pr_warn("%s: retrying using single block read\n",
+ req->rq_disk->disk_name);
disable_multi = 1;
break;
}
@@ -2131,7 +2136,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
md->disk->queue = md->queue.queue;
md->disk->driverfs_dev = parent;
set_disk_ro(md->disk, md->read_only || default_ro);
- if (area_type & MMC_BLK_DATA_AREA_RPMB)
+ if (area_type & (MMC_BLK_DATA_AREA_RPMB | MMC_BLK_DATA_AREA_BOOT))
md->disk->flags |= GENHD_FL_NO_PART_SCAN;
/*
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 3e049c13429c..feea926e32f8 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -229,14 +229,12 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
if (bouncesz > 512) {
mqrq_cur->bounce_buf = kmalloc(bouncesz, GFP_KERNEL);
if (!mqrq_cur->bounce_buf) {
- pr_warning("%s: unable to "
- "allocate bounce cur buffer\n",
+ pr_warn("%s: unable to allocate bounce cur buffer\n",
mmc_card_name(card));
}
mqrq_prev->bounce_buf = kmalloc(bouncesz, GFP_KERNEL);
if (!mqrq_prev->bounce_buf) {
- pr_warning("%s: unable to "
- "allocate bounce prev buffer\n",
+ pr_warn("%s: unable to allocate bounce prev buffer\n",
mmc_card_name(card));
kfree(mqrq_cur->bounce_buf);
mqrq_cur->bounce_buf = NULL;
diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c
index f093cea0d060..d2de5925b73e 100644
--- a/drivers/mmc/card/sdio_uart.c
+++ b/drivers/mmc/card/sdio_uart.c
@@ -1063,8 +1063,8 @@ static int sdio_uart_probe(struct sdio_func *func,
return -ENOMEM;
if (func->class == SDIO_CLASS_UART) {
- pr_warning("%s: need info on UART class basic setup\n",
- sdio_func_id(func));
+ pr_warn("%s: need info on UART class basic setup\n",
+ sdio_func_id(func));
kfree(port);
return -ENOSYS;
} else if (func->class == SDIO_CLASS_GPS) {
@@ -1082,9 +1082,8 @@ static int sdio_uart_probe(struct sdio_func *func,
break;
}
if (!tpl) {
- pr_warning(
- "%s: can't find tuple 0x91 subtuple 0 (SUBTPL_SIOREG) for GPS class\n",
- sdio_func_id(func));
+ pr_warn("%s: can't find tuple 0x91 subtuple 0 (SUBTPL_SIOREG) for GPS class\n",
+ sdio_func_id(func));
kfree(port);
return -EINVAL;
}
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index d03a080fb9cd..f26a5f1d926d 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -433,8 +433,8 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
*/
if (cmd->sanitize_busy && cmd->error == -ETIMEDOUT) {
if (!mmc_interrupt_hpi(host->card)) {
- pr_warning("%s: %s: Interrupted sanitize\n",
- mmc_hostname(host), __func__);
+ pr_warn("%s: %s: Interrupted sanitize\n",
+ mmc_hostname(host), __func__);
cmd->error = 0;
break;
} else {
@@ -995,7 +995,7 @@ void mmc_set_chip_select(struct mmc_host *host, int mode)
*/
static void __mmc_set_clock(struct mmc_host *host, unsigned int hz)
{
- WARN_ON(hz < host->f_min);
+ WARN_ON(hz && hz < host->f_min);
if (hz > host->f_max)
hz = host->f_max;
@@ -1221,15 +1221,14 @@ int mmc_regulator_get_ocrmask(struct regulator *supply)
int result = 0;
int count;
int i;
+ int vdd_uV;
+ int vdd_mV;
count = regulator_count_voltages(supply);
if (count < 0)
return count;
for (i = 0; i < count; i++) {
- int vdd_uV;
- int vdd_mV;
-
vdd_uV = regulator_list_voltage(supply, i);
if (vdd_uV <= 0)
continue;
@@ -1238,6 +1237,15 @@ int mmc_regulator_get_ocrmask(struct regulator *supply)
result |= mmc_vddrange_to_ocrmask(vdd_mV, vdd_mV);
}
+ if (!result) {
+ vdd_uV = regulator_get_voltage(supply);
+ if (vdd_uV <= 0)
+ return vdd_uV;
+
+ vdd_mV = vdd_uV / 1000;
+ result = mmc_vddrange_to_ocrmask(vdd_mV, vdd_mV);
+ }
+
return result;
}
EXPORT_SYMBOL_GPL(mmc_regulator_get_ocrmask);
@@ -1263,7 +1271,6 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc,
if (vdd_bit) {
int tmp;
- int voltage;
/*
* REVISIT mmc_vddrange_to_ocrmask() may have set some
@@ -1280,22 +1287,7 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc,
max_uV = min_uV + 100 * 1000;
}
- /*
- * If we're using a fixed/static regulator, don't call
- * regulator_set_voltage; it would fail.
- */
- voltage = regulator_get_voltage(supply);
-
- if (!regulator_can_change_voltage(supply))
- min_uV = max_uV = voltage;
-
- if (voltage < 0)
- result = voltage;
- else if (voltage < min_uV || voltage > max_uV)
- result = regulator_set_voltage(supply, min_uV, max_uV);
- else
- result = 0;
-
+ result = regulator_set_voltage(supply, min_uV, max_uV);
if (result == 0 && !mmc->regulator_enabled) {
result = regulator_enable(supply);
if (!result)
@@ -1425,8 +1417,8 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr)
if (!host->ops->start_signal_voltage_switch)
return -EPERM;
if (!host->ops->card_busy)
- pr_warning("%s: cannot verify signal voltage switch\n",
- mmc_hostname(host));
+ pr_warn("%s: cannot verify signal voltage switch\n",
+ mmc_hostname(host));
cmd.opcode = SD_SWITCH_VOLTAGE;
cmd.arg = 0;
@@ -1761,7 +1753,7 @@ void mmc_init_erase(struct mmc_card *card)
card->erase_shift = ffs(card->ssr.au) - 1;
} else if (card->ext_csd.hc_erase_size) {
card->pref_erase = card->ext_csd.hc_erase_size;
- } else {
+ } else if (card->erase_size) {
sz = (card->csd.capacity << (card->csd.read_blkbits - 9)) >> 11;
if (sz < 128)
card->pref_erase = 512 * 1024 / 512;
@@ -1778,7 +1770,8 @@ void mmc_init_erase(struct mmc_card *card)
if (sz)
card->pref_erase += card->erase_size - sz;
}
- }
+ } else
+ card->pref_erase = 0;
}
static unsigned int mmc_mmc_erase_timeout(struct mmc_card *card,
@@ -2489,6 +2482,7 @@ void mmc_start_host(struct mmc_host *host)
{
host->f_init = max(freqs[0], host->f_min);
host->rescan_disable = 0;
+ host->ios.power_mode = MMC_POWER_UNDEFINED;
if (host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP)
mmc_power_off(host);
else
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 95cceae96944..03c53b72a2d6 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -310,9 +310,8 @@ int mmc_of_parse(struct mmc_host *host)
{
struct device_node *np;
u32 bus_width;
- bool explicit_inv_wp, gpio_inv_wp = false;
- enum of_gpio_flags flags;
- int len, ret, gpio;
+ int len, ret;
+ bool cap_invert, gpio_invert;
if (!host->parent || !host->parent->of_node)
return 0;
@@ -360,59 +359,62 @@ int mmc_of_parse(struct mmc_host *host)
if (of_find_property(np, "non-removable", &len)) {
host->caps |= MMC_CAP_NONREMOVABLE;
} else {
- bool explicit_inv_cd, gpio_inv_cd = false;
-
- explicit_inv_cd = of_property_read_bool(np, "cd-inverted");
+ if (of_property_read_bool(np, "cd-inverted"))
+ cap_invert = true;
+ else
+ cap_invert = false;
if (of_find_property(np, "broken-cd", &len))
host->caps |= MMC_CAP_NEEDS_POLL;
- gpio = of_get_named_gpio_flags(np, "cd-gpios", 0, &flags);
- if (gpio == -EPROBE_DEFER)
- return gpio;
- if (gpio_is_valid(gpio)) {
- if (!(flags & OF_GPIO_ACTIVE_LOW))
- gpio_inv_cd = true;
-
- ret = mmc_gpio_request_cd(host, gpio, 0);
- if (ret < 0) {
- dev_err(host->parent,
- "Failed to request CD GPIO #%d: %d!\n",
- gpio, ret);
+ ret = mmc_gpiod_request_cd(host, "cd", 0, true,
+ 0, &gpio_invert);
+ if (ret) {
+ if (ret == -EPROBE_DEFER)
return ret;
- } else {
- dev_info(host->parent, "Got CD GPIO #%d.\n",
- gpio);
+ if (ret != -ENOENT) {
+ dev_err(host->parent,
+ "Failed to request CD GPIO: %d\n",
+ ret);
}
- }
-
- if (explicit_inv_cd ^ gpio_inv_cd)
+ } else
+ dev_info(host->parent, "Got CD GPIO\n");
+
+ /*
+ * There are two ways to flag that the CD line is inverted:
+ * through the cd-inverted flag and by the GPIO line itself
+ * being inverted from the GPIO subsystem. This is a leftover
+ * from the times when the GPIO subsystem did not make it
+ * possible to flag a line as inverted.
+ *
+ * If the capability on the host AND the GPIO line are
+ * both inverted, the end result is that the CD line is
+ * not inverted.
+ */
+ if (cap_invert ^ gpio_invert)
host->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
}
/* Parse Write Protection */
- explicit_inv_wp = of_property_read_bool(np, "wp-inverted");
-
- gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);
- if (gpio == -EPROBE_DEFER) {
- ret = -EPROBE_DEFER;
- goto out;
- }
- if (gpio_is_valid(gpio)) {
- if (!(flags & OF_GPIO_ACTIVE_LOW))
- gpio_inv_wp = true;
+ if (of_property_read_bool(np, "wp-inverted"))
+ cap_invert = true;
+ else
+ cap_invert = false;
- ret = mmc_gpio_request_ro(host, gpio);
- if (ret < 0) {
- dev_err(host->parent,
- "Failed to request WP GPIO: %d!\n", ret);
+ ret = mmc_gpiod_request_ro(host, "wp", 0, false, 0, &gpio_invert);
+ if (ret) {
+ if (ret == -EPROBE_DEFER)
goto out;
- } else {
- dev_info(host->parent, "Got WP GPIO #%d.\n",
- gpio);
+ if (ret != -ENOENT) {
+ dev_err(host->parent,
+ "Failed to request WP GPIO: %d\n",
+ ret);
}
- }
- if (explicit_inv_wp ^ gpio_inv_wp)
+ } else
+ dev_info(host->parent, "Got WP GPIO\n");
+
+ /* See the comment on CD inversion above */
+ if (cap_invert ^ gpio_invert)
host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
if (of_find_property(np, "cap-sd-highspeed", &len))
@@ -452,6 +454,14 @@ int mmc_of_parse(struct mmc_host *host)
if (of_find_property(np, "mmc-hs400-1_2v", &len))
host->caps2 |= MMC_CAP2_HS400_1_2V | MMC_CAP2_HS200_1_2V_SDR;
+ host->dsr_req = !of_property_read_u32(np, "dsr", &host->dsr);
+ if (host->dsr_req && (host->dsr & ~0xffff)) {
+ dev_err(host->parent,
+ "device tree specified broken value for DSR: 0x%x, ignoring\n",
+ host->dsr);
+ host->dsr_req = 0;
+ }
+
return 0;
out:
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 1eda8dd8c867..a301a78a2bd1 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -162,6 +162,7 @@ static int mmc_decode_csd(struct mmc_card *card)
csd->read_partial = UNSTUFF_BITS(resp, 79, 1);
csd->write_misalign = UNSTUFF_BITS(resp, 78, 1);
csd->read_misalign = UNSTUFF_BITS(resp, 77, 1);
+ csd->dsr_imp = UNSTUFF_BITS(resp, 76, 1);
csd->r2w_factor = UNSTUFF_BITS(resp, 26, 3);
csd->write_blkbits = UNSTUFF_BITS(resp, 22, 4);
csd->write_partial = UNSTUFF_BITS(resp, 21, 1);
@@ -225,9 +226,7 @@ static int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
"Card will be ignored.\n",
mmc_hostname(card->host));
} else {
- pr_warning("%s: unable to read "
- "EXT_CSD, performance might "
- "suffer.\n",
+ pr_warn("%s: unable to read EXT_CSD, performance might suffer\n",
mmc_hostname(card->host));
err = 0;
}
@@ -298,6 +297,97 @@ static void mmc_select_card_type(struct mmc_card *card)
card->mmc_avail_type = avail_type;
}
+static void mmc_manage_enhanced_area(struct mmc_card *card, u8 *ext_csd)
+{
+ u8 hc_erase_grp_sz, hc_wp_grp_sz;
+
+ /*
+ * Disable these attributes by default
+ */
+ card->ext_csd.enhanced_area_offset = -EINVAL;
+ card->ext_csd.enhanced_area_size = -EINVAL;
+
+ /*
+ * Enhanced area feature support -- check whether the eMMC
+ * card has the Enhanced area enabled. If so, export enhanced
+ * area offset and size to user by adding sysfs interface.
+ */
+ if ((ext_csd[EXT_CSD_PARTITION_SUPPORT] & 0x2) &&
+ (ext_csd[EXT_CSD_PARTITION_ATTRIBUTE] & 0x1)) {
+ if (card->ext_csd.partition_setting_completed) {
+ hc_erase_grp_sz =
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+ hc_wp_grp_sz =
+ ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+
+ /*
+ * calculate the enhanced data area offset, in bytes
+ */
+ card->ext_csd.enhanced_area_offset =
+ (ext_csd[139] << 24) + (ext_csd[138] << 16) +
+ (ext_csd[137] << 8) + ext_csd[136];
+ if (mmc_card_blockaddr(card))
+ card->ext_csd.enhanced_area_offset <<= 9;
+ /*
+ * calculate the enhanced data area size, in kilobytes
+ */
+ card->ext_csd.enhanced_area_size =
+ (ext_csd[142] << 16) + (ext_csd[141] << 8) +
+ ext_csd[140];
+ card->ext_csd.enhanced_area_size *=
+ (size_t)(hc_erase_grp_sz * hc_wp_grp_sz);
+ card->ext_csd.enhanced_area_size <<= 9;
+ } else {
+ pr_warn("%s: defines enhanced area without partition setting complete\n",
+ mmc_hostname(card->host));
+ }
+ }
+}
+
+static void mmc_manage_gp_partitions(struct mmc_card *card, u8 *ext_csd)
+{
+ int idx;
+ u8 hc_erase_grp_sz, hc_wp_grp_sz;
+ unsigned int part_size;
+
+ /*
+ * General purpose partition feature support --
+ * If ext_csd has the size of general purpose partitions,
+ * set size, part_cfg, partition name in mmc_part.
+ */
+ if (ext_csd[EXT_CSD_PARTITION_SUPPORT] &
+ EXT_CSD_PART_SUPPORT_PART_EN) {
+ hc_erase_grp_sz =
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+ hc_wp_grp_sz =
+ ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+
+ for (idx = 0; idx < MMC_NUM_GP_PARTITION; idx++) {
+ if (!ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3] &&
+ !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1] &&
+ !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2])
+ continue;
+ if (card->ext_csd.partition_setting_completed == 0) {
+ pr_warn("%s: has partition size defined without partition complete\n",
+ mmc_hostname(card->host));
+ break;
+ }
+ part_size =
+ (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2]
+ << 16) +
+ (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1]
+ << 8) +
+ ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3];
+ part_size *= (size_t)(hc_erase_grp_sz *
+ hc_wp_grp_sz);
+ mmc_part_add(card, part_size << 19,
+ EXT_CSD_PART_CONFIG_ACC_GP0 + idx,
+ "gp%d", idx, false,
+ MMC_BLK_DATA_AREA_GP);
+ }
+ }
+}
+
/*
* Decode extended CSD.
*/
@@ -305,7 +395,6 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
{
int err = 0, idx;
unsigned int part_size;
- u8 hc_erase_grp_sz = 0, hc_wp_grp_sz = 0;
BUG_ON(!card);
@@ -402,80 +491,16 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
ext_csd[EXT_CSD_TRIM_MULT];
card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
if (card->ext_csd.rev >= 4) {
- /*
- * Enhanced area feature support -- check whether the eMMC
- * card has the Enhanced area enabled. If so, export enhanced
- * area offset and size to user by adding sysfs interface.
- */
- if ((ext_csd[EXT_CSD_PARTITION_SUPPORT] & 0x2) &&
- (ext_csd[EXT_CSD_PARTITION_ATTRIBUTE] & 0x1)) {
- hc_erase_grp_sz =
- ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
- hc_wp_grp_sz =
- ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+ if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED] &
+ EXT_CSD_PART_SETTING_COMPLETED)
+ card->ext_csd.partition_setting_completed = 1;
+ else
+ card->ext_csd.partition_setting_completed = 0;
- card->ext_csd.enhanced_area_en = 1;
- /*
- * calculate the enhanced data area offset, in bytes
- */
- card->ext_csd.enhanced_area_offset =
- (ext_csd[139] << 24) + (ext_csd[138] << 16) +
- (ext_csd[137] << 8) + ext_csd[136];
- if (mmc_card_blockaddr(card))
- card->ext_csd.enhanced_area_offset <<= 9;
- /*
- * calculate the enhanced data area size, in kilobytes
- */
- card->ext_csd.enhanced_area_size =
- (ext_csd[142] << 16) + (ext_csd[141] << 8) +
- ext_csd[140];
- card->ext_csd.enhanced_area_size *=
- (size_t)(hc_erase_grp_sz * hc_wp_grp_sz);
- card->ext_csd.enhanced_area_size <<= 9;
- } else {
- /*
- * If the enhanced area is not enabled, disable these
- * device attributes.
- */
- card->ext_csd.enhanced_area_offset = -EINVAL;
- card->ext_csd.enhanced_area_size = -EINVAL;
- }
+ mmc_manage_enhanced_area(card, ext_csd);
- /*
- * General purpose partition feature support --
- * If ext_csd has the size of general purpose partitions,
- * set size, part_cfg, partition name in mmc_part.
- */
- if (ext_csd[EXT_CSD_PARTITION_SUPPORT] &
- EXT_CSD_PART_SUPPORT_PART_EN) {
- if (card->ext_csd.enhanced_area_en != 1) {
- hc_erase_grp_sz =
- ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
- hc_wp_grp_sz =
- ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
-
- card->ext_csd.enhanced_area_en = 1;
- }
+ mmc_manage_gp_partitions(card, ext_csd);
- for (idx = 0; idx < MMC_NUM_GP_PARTITION; idx++) {
- if (!ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3] &&
- !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1] &&
- !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2])
- continue;
- part_size =
- (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2]
- << 16) +
- (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1]
- << 8) +
- ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3];
- part_size *= (size_t)(hc_erase_grp_sz *
- hc_wp_grp_sz);
- mmc_part_add(card, part_size << 19,
- EXT_CSD_PART_CONFIG_ACC_GP0 + idx,
- "gp%d", idx, false,
- MMC_BLK_DATA_AREA_GP);
- }
- }
card->ext_csd.sec_trim_mult =
ext_csd[EXT_CSD_SEC_TRIM_MULT];
card->ext_csd.sec_erase_mult =
@@ -789,8 +814,8 @@ static int __mmc_select_powerclass(struct mmc_card *card,
ext_csd->raw_pwr_cl_200_360;
break;
default:
- pr_warning("%s: Voltage range not supported "
- "for power class.\n", mmc_hostname(host));
+ pr_warn("%s: Voltage range not supported for power class\n",
+ mmc_hostname(host));
return -EINVAL;
}
@@ -987,19 +1012,35 @@ static int mmc_select_hs_ddr(struct mmc_card *card)
* 1.8V vccq at 3.3V core voltage (vcc) is not required
* in the JEDEC spec for DDR.
*
- * Do not force change in vccq since we are obviously
- * working and no change to vccq is needed.
+ * Even (e)MMC card can support 3.3v to 1.2v vccq, but not all
+ * host controller can support this, like some of the SDHCI
+ * controller which connect to an eMMC device. Some of these
+ * host controller still needs to use 1.8v vccq for supporting
+ * DDR mode.
+ *
+ * So the sequence will be:
+ * if (host and device can both support 1.2v IO)
+ * use 1.2v IO;
+ * else if (host and device can both support 1.8v IO)
+ * use 1.8v IO;
+ * so if host and device can only support 3.3v IO, this is the
+ * last choice.
*
* WARNING: eMMC rules are NOT the same as SD DDR
*/
- if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_1_2V) {
- err = __mmc_set_signal_voltage(host,
- MMC_SIGNAL_VOLTAGE_120);
- if (err)
- return err;
- }
+ err = -EINVAL;
+ if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_1_2V)
+ err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120);
+
+ if (err && (card->mmc_avail_type & EXT_CSD_CARD_TYPE_DDR_1_8V))
+ err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180);
- mmc_set_timing(host, MMC_TIMING_MMC_DDR52);
+ /* make sure vccq is 3.3v after switching disaster */
+ if (err)
+ err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330);
+
+ if (!err)
+ mmc_set_timing(host, MMC_TIMING_MMC_DDR52);
return err;
}
@@ -1134,6 +1175,38 @@ bus_speed:
return err;
}
+const u8 tuning_blk_pattern_4bit[MMC_TUNING_BLK_PATTERN_4BIT_SIZE] = {
+ 0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc,
+ 0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef,
+ 0xff, 0xdf, 0xff, 0xdd, 0xff, 0xfb, 0xff, 0xfb,
+ 0xbf, 0xff, 0x7f, 0xff, 0x77, 0xf7, 0xbd, 0xef,
+ 0xff, 0xf0, 0xff, 0xf0, 0x0f, 0xfc, 0xcc, 0x3c,
+ 0xcc, 0x33, 0xcc, 0xcf, 0xff, 0xef, 0xff, 0xee,
+ 0xff, 0xfd, 0xff, 0xfd, 0xdf, 0xff, 0xbf, 0xff,
+ 0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde,
+};
+EXPORT_SYMBOL(tuning_blk_pattern_4bit);
+
+const u8 tuning_blk_pattern_8bit[MMC_TUNING_BLK_PATTERN_8BIT_SIZE] = {
+ 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00,
+ 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc,
+ 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff,
+ 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff,
+ 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd,
+ 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb,
+ 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff,
+ 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff,
+ 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00,
+ 0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc,
+ 0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff,
+ 0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee,
+ 0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd,
+ 0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff,
+ 0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff,
+ 0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
+};
+EXPORT_SYMBOL(tuning_blk_pattern_8bit);
+
/*
* Execute tuning sequence to seek the proper bus operating
* conditions for HS200 and HS400, which sends CMD21 to the device.
@@ -1272,6 +1345,13 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * handling only for cards supporting DSR and hosts requesting
+ * DSR configuration
+ */
+ if (card->csd.dsr_imp && host->dsr_req)
+ mmc_set_dsr(host);
+
+ /*
* Select card, as all following commands rely on that.
*/
if (!mmc_host_is_spi(host)) {
@@ -1308,7 +1388,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
* 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.partition_setting_completed ||
(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,
@@ -1408,8 +1488,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if (err && err != -EBADMSG)
goto free_card;
if (err) {
- pr_warning("%s: Enabling HPI failed\n",
- mmc_hostname(card->host));
+ pr_warn("%s: Enabling HPI failed\n",
+ mmc_hostname(card->host));
err = 0;
} else
card->ext_csd.hpi_en = 1;
@@ -1430,9 +1510,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
* Only if no error, cache is turned on successfully.
*/
if (err) {
- pr_warning("%s: Cache is supported, "
- "but failed to turn on (%d)\n",
- mmc_hostname(card->host), err);
+ pr_warn("%s: Cache is supported, but failed to turn on (%d)\n",
+ mmc_hostname(card->host), err);
card->ext_csd.cache_ctrl = 0;
err = 0;
} else {
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index f51b5ba3bbea..7911e0510a1d 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -93,6 +93,26 @@ int mmc_deselect_cards(struct mmc_host *host)
return _mmc_select_card(host, NULL);
}
+/*
+ * Write the value specified in the device tree or board code into the optional
+ * 16 bit Driver Stage Register. This can be used to tune raise/fall times and
+ * drive strength of the DAT and CMD outputs. The actual meaning of a given
+ * value is hardware dependant.
+ * The presence of the DSR register can be determined from the CSD register,
+ * bit 76.
+ */
+int mmc_set_dsr(struct mmc_host *host)
+{
+ struct mmc_command cmd = {0};
+
+ cmd.opcode = MMC_SET_DSR;
+
+ cmd.arg = (host->dsr << 16) | 0xffff;
+ cmd.flags = MMC_RSP_NONE | MMC_CMD_AC;
+
+ return mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
+}
+
int mmc_go_idle(struct mmc_host *host)
{
int err;
@@ -629,8 +649,8 @@ int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status)
int err;
if (!card->ext_csd.hpi) {
- pr_warning("%s: Card didn't support HPI command\n",
- mmc_hostname(card->host));
+ pr_warn("%s: Card didn't support HPI command\n",
+ mmc_hostname(card->host));
return -EINVAL;
}
diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h
index 80ae9f4e0293..390dac665b2a 100644
--- a/drivers/mmc/core/mmc_ops.h
+++ b/drivers/mmc/core/mmc_ops.h
@@ -14,6 +14,7 @@
int mmc_select_card(struct mmc_card *card);
int mmc_deselect_cards(struct mmc_host *host);
+int mmc_set_dsr(struct mmc_host *host);
int mmc_go_idle(struct mmc_host *host);
int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
int mmc_all_send_cid(struct mmc_host *host, u32 *cid);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 0c44510bf717..d90a6de7901d 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -127,6 +127,7 @@ static int mmc_decode_csd(struct mmc_card *card)
csd->read_partial = UNSTUFF_BITS(resp, 79, 1);
csd->write_misalign = UNSTUFF_BITS(resp, 78, 1);
csd->read_misalign = UNSTUFF_BITS(resp, 77, 1);
+ csd->dsr_imp = UNSTUFF_BITS(resp, 76, 1);
csd->r2w_factor = UNSTUFF_BITS(resp, 26, 3);
csd->write_blkbits = UNSTUFF_BITS(resp, 22, 4);
csd->write_partial = UNSTUFF_BITS(resp, 21, 1);
@@ -228,8 +229,8 @@ static int mmc_read_ssr(struct mmc_card *card)
u32 *ssr;
if (!(card->csd.cmdclass & CCC_APP_SPEC)) {
- pr_warning("%s: card lacks mandatory SD Status "
- "function.\n", mmc_hostname(card->host));
+ pr_warn("%s: card lacks mandatory SD Status function\n",
+ mmc_hostname(card->host));
return 0;
}
@@ -239,8 +240,8 @@ static int mmc_read_ssr(struct mmc_card *card)
err = mmc_app_sd_status(card, ssr);
if (err) {
- pr_warning("%s: problem reading SD Status "
- "register.\n", mmc_hostname(card->host));
+ pr_warn("%s: problem reading SD Status register\n",
+ mmc_hostname(card->host));
err = 0;
goto out;
}
@@ -264,8 +265,8 @@ static int mmc_read_ssr(struct mmc_card *card)
card->ssr.erase_offset = eo * 1000;
}
} else {
- pr_warning("%s: SD Status: Invalid Allocation Unit size.\n",
- mmc_hostname(card->host));
+ pr_warn("%s: SD Status: Invalid Allocation Unit size\n",
+ mmc_hostname(card->host));
}
}
out:
@@ -285,8 +286,7 @@ static int mmc_read_switch(struct mmc_card *card)
return 0;
if (!(card->csd.cmdclass & CCC_SWITCH)) {
- pr_warning("%s: card lacks mandatory switch "
- "function, performance might suffer.\n",
+ pr_warn("%s: card lacks mandatory switch function, performance might suffer\n",
mmc_hostname(card->host));
return 0;
}
@@ -315,7 +315,7 @@ static int mmc_read_switch(struct mmc_card *card)
if (err != -EINVAL && err != -ENOSYS && err != -EFAULT)
goto out;
- pr_warning("%s: problem reading Bus Speed modes.\n",
+ pr_warn("%s: problem reading Bus Speed modes\n",
mmc_hostname(card->host));
err = 0;
@@ -371,8 +371,7 @@ int mmc_sd_switch_hs(struct mmc_card *card)
goto out;
if ((status[16] & 0xF) != 1) {
- pr_warning("%s: Problem switching card "
- "into high-speed mode!\n",
+ pr_warn("%s: Problem switching card into high-speed mode!\n",
mmc_hostname(card->host));
err = 0;
} else {
@@ -439,7 +438,7 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status)
return err;
if ((status[15] & 0xF) != drive_strength) {
- pr_warning("%s: Problem setting drive strength!\n",
+ pr_warn("%s: Problem setting drive strength!\n",
mmc_hostname(card->host));
return 0;
}
@@ -517,7 +516,7 @@ static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status)
return err;
if ((status[16] & 0xF) != card->sd_bus_speed)
- pr_warning("%s: Problem setting bus speed mode!\n",
+ pr_warn("%s: Problem setting bus speed mode!\n",
mmc_hostname(card->host));
else {
mmc_set_timing(card->host, timing);
@@ -597,7 +596,7 @@ static int sd_set_current_limit(struct mmc_card *card, u8 *status)
return err;
if (((status[15] >> 4) & 0x0F) != current_limit)
- pr_warning("%s: Problem setting current limit!\n",
+ pr_warn("%s: Problem setting current limit!\n",
mmc_hostname(card->host));
}
@@ -726,8 +725,7 @@ int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr)
try_again:
if (!retries) {
ocr &= ~SD_OCR_S18R;
- pr_warning("%s: Skipping voltage switch\n",
- mmc_hostname(host));
+ pr_warn("%s: Skipping voltage switch\n", mmc_hostname(host));
}
/*
@@ -871,9 +869,7 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
}
if (ro < 0) {
- pr_warning("%s: host does not "
- "support reading read-only "
- "switch. assuming write-enable.\n",
+ pr_warn("%s: host does not support reading read-only switch, assuming write-enable\n",
mmc_hostname(host));
} else if (ro > 0) {
mmc_card_set_readonly(card);
@@ -954,6 +950,13 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * handling only for cards supporting DSR and hosts requesting
+ * DSR configuration
+ */
+ if (card->csd.dsr_imp && host->dsr_req)
+ mmc_set_dsr(host);
+
+ /*
* Select card, as all following commands rely on that.
*/
if (!mmc_host_is_spi(host)) {
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index e636d9e99e4a..2439e717655b 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -216,8 +216,8 @@ static int sdio_enable_wide(struct mmc_card *card)
return ret;
if ((ctrl & SDIO_BUS_WIDTH_MASK) == SDIO_BUS_WIDTH_RESERVED)
- pr_warning("%s: SDIO_CCCR_IF is invalid: 0x%02x\n",
- mmc_hostname(card->host), ctrl);
+ pr_warn("%s: SDIO_CCCR_IF is invalid: 0x%02x\n",
+ mmc_hostname(card->host), ctrl);
/* set as 4-bit bus width */
ctrl &= ~SDIO_BUS_WIDTH_MASK;
@@ -605,8 +605,7 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
try_again:
if (!retries) {
- pr_warning("%s: Skipping voltage switch\n",
- mmc_hostname(host));
+ pr_warn("%s: Skipping voltage switch\n", mmc_hostname(host));
ocr &= ~R4_18V_PRESENT;
}
@@ -992,8 +991,16 @@ static int mmc_sdio_resume(struct mmc_host *host)
}
}
- if (!err && host->sdio_irqs)
- wake_up_process(host->sdio_irq_thread);
+ if (!err && host->sdio_irqs) {
+ if (!(host->caps2 & MMC_CAP2_SDIO_IRQ_NOTHREAD)) {
+ wake_up_process(host->sdio_irq_thread);
+ } else if (host->caps & MMC_CAP_SDIO_IRQ) {
+ mmc_host_clk_hold(host);
+ host->ops->enable_sdio_irq(host, 1);
+ mmc_host_clk_release(host);
+ }
+ }
+
mmc_release_host(host);
host->pm_flags &= ~MMC_PM_KEEP_POWER;
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index 65cf7a7e05ea..6da97b170563 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -178,8 +178,8 @@ static int sdio_bus_remove(struct device *dev)
drv->remove(func);
if (func->irq_handler) {
- pr_warning("WARNING: driver %s did not remove "
- "its interrupt handler!\n", drv->name);
+ pr_warn("WARNING: driver %s did not remove its interrupt handler!\n",
+ drv->name);
sdio_claim_host(func);
sdio_release_irq(func);
sdio_release_host(func);
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index 5cc13c8d35bb..09cc67d028f0 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -69,16 +69,15 @@ static int process_sdio_pending_irqs(struct mmc_host *host)
if (pending & (1 << i)) {
func = card->sdio_func[i - 1];
if (!func) {
- pr_warning("%s: pending IRQ for "
- "non-existent function\n",
+ pr_warn("%s: pending IRQ for non-existent function\n",
mmc_card_id(card));
ret = -EINVAL;
} else if (func->irq_handler) {
func->irq_handler(func);
count++;
} else {
- pr_warning("%s: pending IRQ with no handler\n",
- sdio_func_id(func));
+ pr_warn("%s: pending IRQ with no handler\n",
+ sdio_func_id(func));
ret = -EINVAL;
}
}
@@ -208,7 +207,7 @@ static int sdio_card_irq_get(struct mmc_card *card)
host->sdio_irqs--;
return err;
}
- } else {
+ } else if (host->caps & MMC_CAP_SDIO_IRQ) {
mmc_host_clk_hold(host);
host->ops->enable_sdio_irq(host, 1);
mmc_host_clk_release(host);
@@ -229,7 +228,7 @@ static int sdio_card_irq_put(struct mmc_card *card)
if (!(host->caps2 & MMC_CAP2_SDIO_IRQ_NOTHREAD)) {
atomic_set(&host->sdio_irq_thread_abort, 1);
kthread_stop(host->sdio_irq_thread);
- } else {
+ } else if (host->caps & MMC_CAP_SDIO_IRQ) {
mmc_host_clk_hold(host);
host->ops->enable_sdio_irq(host, 0);
mmc_host_clk_release(host);
diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c
index 5f89cb83d5f0..69bbf2adb329 100644
--- a/drivers/mmc/core/slot-gpio.c
+++ b/drivers/mmc/core/slot-gpio.c
@@ -221,8 +221,6 @@ int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio,
ctx->override_cd_active_level = true;
ctx->cd_gpio = gpio_to_desc(gpio);
- mmc_gpiod_request_cd_irq(host);
-
return 0;
}
EXPORT_SYMBOL(mmc_gpio_request_cd);
@@ -283,6 +281,8 @@ EXPORT_SYMBOL(mmc_gpio_free_cd);
* @idx: index of the GPIO to obtain in the consumer
* @override_active_level: ignore %GPIO_ACTIVE_LOW flag
* @debounce: debounce time in microseconds
+ * @gpio_invert: will return whether the GPIO line is inverted or not, set
+ * to NULL to ignore
*
* Use this function in place of mmc_gpio_request_cd() to use the GPIO
* descriptor API. Note that it is paired with mmc_gpiod_free_cd() not
@@ -293,7 +293,7 @@ EXPORT_SYMBOL(mmc_gpio_free_cd);
*/
int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
unsigned int idx, bool override_active_level,
- unsigned int debounce)
+ unsigned int debounce, bool *gpio_invert)
{
struct mmc_gpio *ctx;
struct gpio_desc *desc;
@@ -308,20 +308,19 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
if (!con_id)
con_id = ctx->cd_label;
- desc = devm_gpiod_get_index(host->parent, con_id, idx);
+ desc = devm_gpiod_get_index(host->parent, con_id, idx, GPIOD_IN);
if (IS_ERR(desc))
return PTR_ERR(desc);
- ret = gpiod_direction_input(desc);
- if (ret < 0)
- return ret;
-
if (debounce) {
ret = gpiod_set_debounce(desc, debounce);
if (ret < 0)
return ret;
}
+ if (gpio_invert)
+ *gpio_invert = !gpiod_is_active_low(desc);
+
ctx->override_cd_active_level = override_active_level;
ctx->cd_gpio = desc;
@@ -330,6 +329,59 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
EXPORT_SYMBOL(mmc_gpiod_request_cd);
/**
+ * mmc_gpiod_request_ro - request a gpio descriptor for write protection
+ * @host: mmc host
+ * @con_id: function within the GPIO consumer
+ * @idx: index of the GPIO to obtain in the consumer
+ * @override_active_level: ignore %GPIO_ACTIVE_LOW flag
+ * @debounce: debounce time in microseconds
+ * @gpio_invert: will return whether the GPIO line is inverted or not,
+ * set to NULL to ignore
+ *
+ * Use this function in place of mmc_gpio_request_ro() to use the GPIO
+ * descriptor API. Note that it is paired with mmc_gpiod_free_ro() not
+ * mmc_gpio_free_ro().
+ *
+ * Returns zero on success, else an error.
+ */
+int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
+ unsigned int idx, bool override_active_level,
+ unsigned int debounce, bool *gpio_invert)
+{
+ struct mmc_gpio *ctx;
+ struct gpio_desc *desc;
+ int ret;
+
+ ret = mmc_gpio_alloc(host);
+ if (ret < 0)
+ return ret;
+
+ ctx = host->slot.handler_priv;
+
+ if (!con_id)
+ con_id = ctx->ro_label;
+
+ desc = devm_gpiod_get_index(host->parent, con_id, idx, GPIOD_IN);
+ if (IS_ERR(desc))
+ return PTR_ERR(desc);
+
+ if (debounce) {
+ ret = gpiod_set_debounce(desc, debounce);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (gpio_invert)
+ *gpio_invert = !gpiod_is_active_low(desc);
+
+ ctx->override_ro_active_level = override_active_level;
+ ctx->ro_gpio = desc;
+
+ return 0;
+}
+EXPORT_SYMBOL(mmc_gpiod_request_ro);
+
+/**
* mmc_gpiod_free_cd - free the card-detection gpio descriptor
* @host: mmc host
*
@@ -348,7 +400,7 @@ void mmc_gpiod_free_cd(struct mmc_host *host)
host->slot.cd_irq = -EINVAL;
}
- devm_gpiod_put(&host->class_dev, ctx->cd_gpio);
+ devm_gpiod_put(host->parent, ctx->cd_gpio);
ctx->cd_gpio = NULL;
}
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 451135822464..13860656104b 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -14,6 +14,17 @@ config MMC_ARMMMCI
If unsure, say N.
+config MMC_QCOM_DML
+ tristate "Qualcomm Data Mover for SD Card Controller"
+ depends on MMC_ARMMMCI && QCOM_BAM_DMA
+ default y
+ help
+ This selects the Qualcomm Data Mover lite/local on SD Card controller.
+ This option will enable the dma to work correctly, if you are using
+ Qcom SOCs and MMC, you would probably need this option to get DMA working.
+
+ if unsure, say N.
+
config MMC_PXA
tristate "Intel PXA25x/26x/27x Multimedia Card Interface support"
depends on ARCH_PXA
@@ -568,7 +579,8 @@ config SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND
config MMC_DW
tristate "Synopsys DesignWare Memory Card Interface"
- depends on ARC || ARM
+ depends on HAS_DMA
+ depends on ARC || ARM || MIPS || COMPILE_TEST
help
This selects support for the Synopsys DesignWare Mobile Storage IP
block, this provides host support for SD and MMC interfaces, in both
@@ -626,6 +638,15 @@ config MMC_DW_PCI
If unsure, say N.
+config MMC_DW_ROCKCHIP
+ tristate "Rockchip specific extensions for Synopsys DW Memory Card Interface"
+ depends on MMC_DW && ARCH_ROCKCHIP
+ select MMC_DW_PLTFM
+ help
+ This selects support for Rockchip SoC specific extensions to the
+ Synopsys DesignWare Memory Card Interface driver. Select this option
+ for platforms based on RK3066, RK3188 and RK3288 SoC's.
+
config MMC_SH_MMCIF
tristate "SuperH Internal MMCIF support"
depends on MMC_BLOCK && HAS_DMA
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index f211eede8db5..b09ecfb88269 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -3,6 +3,7 @@
#
obj-$(CONFIG_MMC_ARMMMCI) += mmci.o
+obj-$(CONFIG_MMC_QCOM_DML) += mmci_qcom_dml.o
obj-$(CONFIG_MMC_PXA) += pxamci.o
obj-$(CONFIG_MMC_MXC) += mxcmmc.o
obj-$(CONFIG_MMC_MXS) += mxs-mmc.o
@@ -45,6 +46,7 @@ obj-$(CONFIG_MMC_DW_PLTFM) += dw_mmc-pltfm.o
obj-$(CONFIG_MMC_DW_EXYNOS) += dw_mmc-exynos.o
obj-$(CONFIG_MMC_DW_K3) += dw_mmc-k3.o
obj-$(CONFIG_MMC_DW_PCI) += dw_mmc-pci.o
+obj-$(CONFIG_MMC_DW_ROCKCHIP) += dw_mmc-rockchip.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 bb585d940901..77250d4b1979 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -17,6 +17,7 @@
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -2195,7 +2196,8 @@ static int __init atmci_init_slot(struct atmel_mci *host,
/* Assume card is present initially */
set_bit(ATMCI_CARD_PRESENT, &slot->flags);
if (gpio_is_valid(slot->detect_pin)) {
- if (gpio_request(slot->detect_pin, "mmc_detect")) {
+ if (devm_gpio_request(&host->pdev->dev, slot->detect_pin,
+ "mmc_detect")) {
dev_dbg(&mmc->class_dev, "no detect pin available\n");
slot->detect_pin = -EBUSY;
} else if (gpio_get_value(slot->detect_pin) ^
@@ -2208,7 +2210,8 @@ static int __init atmci_init_slot(struct atmel_mci *host,
mmc->caps |= MMC_CAP_NEEDS_POLL;
if (gpio_is_valid(slot->wp_pin)) {
- if (gpio_request(slot->wp_pin, "mmc_wp")) {
+ if (devm_gpio_request(&host->pdev->dev, slot->wp_pin,
+ "mmc_wp")) {
dev_dbg(&mmc->class_dev, "no WP pin available\n");
slot->wp_pin = -EBUSY;
}
@@ -2232,7 +2235,6 @@ static int __init atmci_init_slot(struct atmel_mci *host,
dev_dbg(&mmc->class_dev,
"could not request IRQ %d for detect pin\n",
gpio_to_irq(slot->detect_pin));
- gpio_free(slot->detect_pin);
slot->detect_pin = -EBUSY;
}
}
@@ -2242,7 +2244,7 @@ static int __init atmci_init_slot(struct atmel_mci *host,
return 0;
}
-static void __exit atmci_cleanup_slot(struct atmel_mci_slot *slot,
+static void atmci_cleanup_slot(struct atmel_mci_slot *slot,
unsigned int id)
{
/* Debugfs stuff is cleaned up by mmc core */
@@ -2257,10 +2259,7 @@ static void __exit atmci_cleanup_slot(struct atmel_mci_slot *slot,
free_irq(gpio_to_irq(pin), slot);
del_timer_sync(&slot->detect_timer);
- gpio_free(pin);
}
- if (gpio_is_valid(slot->wp_pin))
- gpio_free(slot->wp_pin);
slot->host->slot[id] = NULL;
mmc_free_host(slot->mmc);
@@ -2344,6 +2343,7 @@ static void __init atmci_get_cap(struct atmel_mci *host)
/* keep only major version number */
switch (version & 0xf00) {
+ case 0x600:
case 0x500:
host->caps.has_odd_clk_div = 1;
case 0x400:
@@ -2377,7 +2377,7 @@ static int __init atmci_probe(struct platform_device *pdev)
struct resource *regs;
unsigned int nr_slots;
int irq;
- int ret;
+ int ret, i;
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!regs)
@@ -2395,7 +2395,7 @@ static int __init atmci_probe(struct platform_device *pdev)
if (irq < 0)
return irq;
- host = kzalloc(sizeof(struct atmel_mci), GFP_KERNEL);
+ host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
if (!host)
return -ENOMEM;
@@ -2403,20 +2403,18 @@ static int __init atmci_probe(struct platform_device *pdev)
spin_lock_init(&host->lock);
INIT_LIST_HEAD(&host->queue);
- host->mck = clk_get(&pdev->dev, "mci_clk");
- if (IS_ERR(host->mck)) {
- ret = PTR_ERR(host->mck);
- goto err_clk_get;
- }
+ host->mck = devm_clk_get(&pdev->dev, "mci_clk");
+ if (IS_ERR(host->mck))
+ return PTR_ERR(host->mck);
- ret = -ENOMEM;
- host->regs = ioremap(regs->start, resource_size(regs));
+ host->regs = devm_ioremap(&pdev->dev, regs->start, resource_size(regs));
if (!host->regs)
- goto err_ioremap;
+ return -ENOMEM;
ret = clk_prepare_enable(host->mck);
if (ret)
- goto err_request_irq;
+ return ret;
+
atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
host->bus_hz = clk_get_rate(host->mck);
clk_disable_unprepare(host->mck);
@@ -2427,7 +2425,7 @@ static int __init atmci_probe(struct platform_device *pdev)
ret = request_irq(irq, atmci_interrupt, 0, dev_name(&pdev->dev), host);
if (ret)
- goto err_request_irq;
+ return ret;
/* Get MCI capabilities and set operations according to it */
atmci_get_cap(host);
@@ -2485,7 +2483,7 @@ static int __init atmci_probe(struct platform_device *pdev)
if (!host->buffer) {
ret = -ENOMEM;
dev_err(&pdev->dev, "buffer allocation failed\n");
- goto err_init_slot;
+ goto err_dma_alloc;
}
}
@@ -2495,16 +2493,16 @@ static int __init atmci_probe(struct platform_device *pdev)
return 0;
+err_dma_alloc:
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
+ if (host->slot[i])
+ atmci_cleanup_slot(host->slot[i], i);
+ }
err_init_slot:
+ del_timer_sync(&host->timer);
if (host->dma.chan)
dma_release_channel(host->dma.chan);
free_irq(irq, host);
-err_request_irq:
- iounmap(host->regs);
-err_ioremap:
- clk_put(host->mck);
-err_clk_get:
- kfree(host);
return ret;
}
@@ -2528,14 +2526,11 @@ static int __exit atmci_remove(struct platform_device *pdev)
atmci_readl(host, ATMCI_SR);
clk_disable_unprepare(host->mck);
+ del_timer_sync(&host->timer);
if (host->dma.chan)
dma_release_channel(host->dma.chan);
free_irq(platform_get_irq(pdev, 0), host);
- iounmap(host->regs);
-
- clk_put(host->mck);
- kfree(host);
return 0;
}
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index 9c9f6af29251..725f6a6fd89b 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -1028,9 +1028,12 @@ static int au1xmmc_probe(struct platform_device *pdev)
host->clk = clk_get(&pdev->dev, ALCHEMY_PERIPH_CLK);
if (IS_ERR(host->clk)) {
dev_err(&pdev->dev, "cannot find clock\n");
+ ret = PTR_ERR(host->clk);
goto out_irq;
}
- if (clk_prepare_enable(host->clk)) {
+
+ ret = clk_prepare_enable(host->clk);
+ if (ret) {
dev_err(&pdev->dev, "cannot enable clock\n");
goto out_clk;
}
diff --git a/drivers/mmc/host/dw_mmc-pci.c b/drivers/mmc/host/dw_mmc-pci.c
index 6ada1b36685b..4c69fbd29811 100644
--- a/drivers/mmc/host/dw_mmc-pci.c
+++ b/drivers/mmc/host/dw_mmc-pci.c
@@ -95,9 +95,6 @@ static int dw_mci_pci_resume(struct device *dev)
return dw_mci_resume(host);
}
-#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);
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index d4a47a9f5584..8b6572162ed9 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -21,6 +21,7 @@
#include <linux/mmc/mmc.h>
#include <linux/mmc/dw_mmc.h>
#include <linux/of.h>
+#include <linux/clk.h>
#include "dw_mmc.h"
#include "dw_mmc-pltfm.h"
@@ -30,10 +31,6 @@ static void dw_mci_pltfm_prepare_command(struct dw_mci *host, u32 *cmdr)
*cmdr |= SDMMC_CMD_USE_HOLD_REG;
}
-static const struct dw_mci_drv_data rockchip_drv_data = {
- .prepare_command = dw_mci_pltfm_prepare_command,
-};
-
static const struct dw_mci_drv_data socfpga_drv_data = {
.prepare_command = dw_mci_pltfm_prepare_command,
};
@@ -84,9 +81,6 @@ static int dw_mci_pltfm_resume(struct device *dev)
return dw_mci_resume(host);
}
-#else
-#define dw_mci_pltfm_suspend NULL
-#define dw_mci_pltfm_resume NULL
#endif /* CONFIG_PM_SLEEP */
SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume);
@@ -94,8 +88,6 @@ EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
static const struct of_device_id dw_mci_pltfm_match[] = {
{ .compatible = "snps,dw-mshc", },
- { .compatible = "rockchip,rk2928-dw-mshc",
- .data = &rockchip_drv_data },
{ .compatible = "altr,socfpga-dw-mshc",
.data = &socfpga_drv_data },
{},
diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c
new file mode 100644
index 000000000000..f0c2cb1a210d
--- /dev/null
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., 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/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/dw_mmc.h>
+#include <linux/of_address.h>
+
+#include "dw_mmc.h"
+#include "dw_mmc-pltfm.h"
+
+#define RK3288_CLKGEN_DIV 2
+
+static void dw_mci_rockchip_prepare_command(struct dw_mci *host, u32 *cmdr)
+{
+ *cmdr |= SDMMC_CMD_USE_HOLD_REG;
+}
+
+static int dw_mci_rk3288_setup_clock(struct dw_mci *host)
+{
+ host->bus_hz /= RK3288_CLKGEN_DIV;
+
+ return 0;
+}
+
+static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios)
+{
+ int ret;
+ unsigned int cclkin;
+ u32 bus_hz;
+
+ /*
+ * cclkin: source clock of mmc controller
+ * bus_hz: card interface clock generated by CLKGEN
+ * bus_hz = cclkin / RK3288_CLKGEN_DIV
+ * ios->clock = (div == 0) ? bus_hz : (bus_hz / (2 * div))
+ *
+ * Note: div can only be 0 or 1
+ * if DDR50 8bit mode(only emmc work in 8bit mode),
+ * div must be set 1
+ */
+ if (ios->bus_width == MMC_BUS_WIDTH_8 &&
+ ios->timing == MMC_TIMING_MMC_DDR52)
+ cclkin = 2 * ios->clock * RK3288_CLKGEN_DIV;
+ else
+ cclkin = ios->clock * RK3288_CLKGEN_DIV;
+
+ ret = clk_set_rate(host->ciu_clk, cclkin);
+ if (ret)
+ dev_warn(host->dev, "failed to set rate %uHz\n", ios->clock);
+
+ bus_hz = clk_get_rate(host->ciu_clk) / RK3288_CLKGEN_DIV;
+ if (bus_hz != host->bus_hz) {
+ host->bus_hz = bus_hz;
+ /* force dw_mci_setup_bus() */
+ host->current_speed = 0;
+ }
+}
+
+static const struct dw_mci_drv_data rk2928_drv_data = {
+ .prepare_command = dw_mci_rockchip_prepare_command,
+};
+
+static const struct dw_mci_drv_data rk3288_drv_data = {
+ .prepare_command = dw_mci_rockchip_prepare_command,
+ .set_ios = dw_mci_rk3288_set_ios,
+ .setup_clock = dw_mci_rk3288_setup_clock,
+};
+
+static const struct of_device_id dw_mci_rockchip_match[] = {
+ { .compatible = "rockchip,rk2928-dw-mshc",
+ .data = &rk2928_drv_data },
+ { .compatible = "rockchip,rk3288-dw-mshc",
+ .data = &rk3288_drv_data },
+ {},
+};
+MODULE_DEVICE_TABLE(of, dw_mci_rockchip_match);
+
+static int dw_mci_rockchip_probe(struct platform_device *pdev)
+{
+ const struct dw_mci_drv_data *drv_data;
+ const struct of_device_id *match;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ match = of_match_node(dw_mci_rockchip_match, pdev->dev.of_node);
+ drv_data = match->data;
+
+ return dw_mci_pltfm_register(pdev, drv_data);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int dw_mci_rockchip_suspend(struct device *dev)
+{
+ struct dw_mci *host = dev_get_drvdata(dev);
+
+ return dw_mci_suspend(host);
+}
+
+static int dw_mci_rockchip_resume(struct device *dev)
+{
+ struct dw_mci *host = dev_get_drvdata(dev);
+
+ return dw_mci_resume(host);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(dw_mci_rockchip_pmops,
+ dw_mci_rockchip_suspend,
+ dw_mci_rockchip_resume);
+
+static struct platform_driver dw_mci_rockchip_pltfm_driver = {
+ .probe = dw_mci_rockchip_probe,
+ .remove = __exit_p(dw_mci_pltfm_remove),
+ .driver = {
+ .name = "dwmmc_rockchip",
+ .of_match_table = dw_mci_rockchip_match,
+ .pm = &dw_mci_rockchip_pmops,
+ },
+};
+
+module_platform_driver(dw_mci_rockchip_pltfm_driver);
+
+MODULE_AUTHOR("Addy Ke <addy.ke@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip Specific DW-MSHC Driver Extension");
+MODULE_ALIAS("platform:dwmmc-rockchip");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 8f216edbdf08..69f0cc68d5b2 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -29,6 +29,7 @@
#include <linux/irq.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
+#include <linux/mmc/sd.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/dw_mmc.h>
#include <linux/bitops.h>
@@ -81,36 +82,6 @@ struct idmac_desc {
};
#endif /* CONFIG_MMC_DW_IDMAC */
-static const u8 tuning_blk_pattern_4bit[] = {
- 0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc,
- 0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef,
- 0xff, 0xdf, 0xff, 0xdd, 0xff, 0xfb, 0xff, 0xfb,
- 0xbf, 0xff, 0x7f, 0xff, 0x77, 0xf7, 0xbd, 0xef,
- 0xff, 0xf0, 0xff, 0xf0, 0x0f, 0xfc, 0xcc, 0x3c,
- 0xcc, 0x33, 0xcc, 0xcf, 0xff, 0xef, 0xff, 0xee,
- 0xff, 0xfd, 0xff, 0xfd, 0xdf, 0xff, 0xbf, 0xff,
- 0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde,
-};
-
-static const u8 tuning_blk_pattern_8bit[] = {
- 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00,
- 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc,
- 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff,
- 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff,
- 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd,
- 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb,
- 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff,
- 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff,
- 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00,
- 0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc,
- 0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff,
- 0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee,
- 0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd,
- 0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff,
- 0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff,
- 0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
-};
-
static bool dw_mci_reset(struct dw_mci *host);
#if defined(CONFIG_DEBUG_FS)
@@ -234,10 +205,13 @@ err:
}
#endif /* defined(CONFIG_DEBUG_FS) */
+static void mci_send_cmd(struct dw_mci_slot *slot, u32 cmd, u32 arg);
+
static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd)
{
struct mmc_data *data;
struct dw_mci_slot *slot = mmc_priv(mmc);
+ struct dw_mci *host = slot->host;
const struct dw_mci_drv_data *drv_data = slot->host->drv_data;
u32 cmdr;
cmd->error = -EINPROGRESS;
@@ -253,6 +227,34 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd)
else if (cmd->opcode != MMC_SEND_STATUS && cmd->data)
cmdr |= SDMMC_CMD_PRV_DAT_WAIT;
+ if (cmd->opcode == SD_SWITCH_VOLTAGE) {
+ u32 clk_en_a;
+
+ /* Special bit makes CMD11 not die */
+ cmdr |= SDMMC_CMD_VOLT_SWITCH;
+
+ /* Change state to continue to handle CMD11 weirdness */
+ WARN_ON(slot->host->state != STATE_SENDING_CMD);
+ slot->host->state = STATE_SENDING_CMD11;
+
+ /*
+ * We need to disable low power mode (automatic clock stop)
+ * while doing voltage switch so we don't confuse the card,
+ * since stopping the clock is a specific part of the UHS
+ * voltage change dance.
+ *
+ * Note that low power mode (SDMMC_CLKEN_LOW_PWR) will be
+ * unconditionally turned back on in dw_mci_setup_bus() if it's
+ * ever called with a non-zero clock. That shouldn't happen
+ * until the voltage change is all done.
+ */
+ clk_en_a = mci_readl(host, CLKENA);
+ clk_en_a &= ~(SDMMC_CLKEN_LOW_PWR << slot->id);
+ mci_writel(host, CLKENA, clk_en_a);
+ mci_send_cmd(slot, SDMMC_CMD_UPD_CLK |
+ SDMMC_CMD_PRV_DAT_WAIT, 0);
+ }
+
if (cmd->flags & MMC_RSP_PRESENT) {
/* We expect a response, so set this bit */
cmdr |= SDMMC_CMD_RESP_EXP;
@@ -775,11 +777,15 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit)
unsigned int clock = slot->clock;
u32 div;
u32 clk_en_a;
+ u32 sdmmc_cmd_bits = SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT;
+
+ /* We must continue to set bit 28 in CMD until the change is complete */
+ if (host->state == STATE_WAITING_CMD11_DONE)
+ sdmmc_cmd_bits |= SDMMC_CMD_VOLT_SWITCH;
if (!clock) {
mci_writel(host, CLKENA, 0);
- mci_send_cmd(slot,
- SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
+ mci_send_cmd(slot, sdmmc_cmd_bits, 0);
} else if (clock != host->current_speed || force_clkinit) {
div = host->bus_hz / clock;
if (host->bus_hz % clock && host->bus_hz > clock)
@@ -803,15 +809,13 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit)
mci_writel(host, CLKSRC, 0);
/* inform CIU */
- mci_send_cmd(slot,
- SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
+ mci_send_cmd(slot, sdmmc_cmd_bits, 0);
/* set clock to desired speed */
mci_writel(host, CLKDIV, div);
/* inform CIU */
- mci_send_cmd(slot,
- SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
+ mci_send_cmd(slot, sdmmc_cmd_bits, 0);
/* enable clock; only low power if no SDIO */
clk_en_a = SDMMC_CLKEN_ENABLE << slot->id;
@@ -820,8 +824,7 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit)
mci_writel(host, CLKENA, clk_en_a);
/* inform CIU */
- mci_send_cmd(slot,
- SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
+ mci_send_cmd(slot, sdmmc_cmd_bits, 0);
/* keep the clock with reflecting clock dividor */
slot->__clk_old = clock << div;
@@ -897,6 +900,17 @@ static void dw_mci_queue_request(struct dw_mci *host, struct dw_mci_slot *slot,
slot->mrq = mrq;
+ if (host->state == STATE_WAITING_CMD11_DONE) {
+ dev_warn(&slot->mmc->class_dev,
+ "Voltage change didn't complete\n");
+ /*
+ * this case isn't expected to happen, so we can
+ * either crash here or just try to continue on
+ * in the closest possible state
+ */
+ host->state = STATE_IDLE;
+ }
+
if (host->state == STATE_IDLE) {
host->state = STATE_SENDING_CMD;
dw_mci_start_request(host, slot);
@@ -936,6 +950,7 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct dw_mci_slot *slot = mmc_priv(mmc);
const struct dw_mci_drv_data *drv_data = slot->host->drv_data;
u32 regs;
+ int ret;
switch (ios->bus_width) {
case MMC_BUS_WIDTH_4:
@@ -972,14 +987,43 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
/* Slot specific timing and width adjustment */
dw_mci_setup_bus(slot, false);
+ if (slot->host->state == STATE_WAITING_CMD11_DONE && ios->clock != 0)
+ slot->host->state = STATE_IDLE;
+
switch (ios->power_mode) {
case MMC_POWER_UP:
+ if (!IS_ERR(mmc->supply.vmmc)) {
+ ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc,
+ ios->vdd);
+ if (ret) {
+ dev_err(slot->host->dev,
+ "failed to enable vmmc regulator\n");
+ /*return, if failed turn on vmmc*/
+ return;
+ }
+ }
+ if (!IS_ERR(mmc->supply.vqmmc) && !slot->host->vqmmc_enabled) {
+ ret = regulator_enable(mmc->supply.vqmmc);
+ if (ret < 0)
+ dev_err(slot->host->dev,
+ "failed to enable vqmmc regulator\n");
+ else
+ slot->host->vqmmc_enabled = true;
+ }
set_bit(DW_MMC_CARD_NEED_INIT, &slot->flags);
regs = mci_readl(slot->host, PWREN);
regs |= (1 << slot->id);
mci_writel(slot->host, PWREN, regs);
break;
case MMC_POWER_OFF:
+ if (!IS_ERR(mmc->supply.vmmc))
+ mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
+
+ if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled) {
+ regulator_disable(mmc->supply.vqmmc);
+ slot->host->vqmmc_enabled = false;
+ }
+
regs = mci_readl(slot->host, PWREN);
regs &= ~(1 << slot->id);
mci_writel(slot->host, PWREN, regs);
@@ -989,6 +1033,59 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
}
+static int dw_mci_card_busy(struct mmc_host *mmc)
+{
+ struct dw_mci_slot *slot = mmc_priv(mmc);
+ u32 status;
+
+ /*
+ * Check the busy bit which is low when DAT[3:0]
+ * (the data lines) are 0000
+ */
+ status = mci_readl(slot->host, STATUS);
+
+ return !!(status & SDMMC_STATUS_BUSY);
+}
+
+static int dw_mci_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+ struct dw_mci_slot *slot = mmc_priv(mmc);
+ struct dw_mci *host = slot->host;
+ u32 uhs;
+ u32 v18 = SDMMC_UHS_18V << slot->id;
+ int min_uv, max_uv;
+ int ret;
+
+ /*
+ * Program the voltage. Note that some instances of dw_mmc may use
+ * the UHS_REG for this. For other instances (like exynos) the UHS_REG
+ * does no harm but you need to set the regulator directly. Try both.
+ */
+ uhs = mci_readl(host, UHS_REG);
+ if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330) {
+ min_uv = 2700000;
+ max_uv = 3600000;
+ uhs &= ~v18;
+ } else {
+ min_uv = 1700000;
+ max_uv = 1950000;
+ uhs |= v18;
+ }
+ if (!IS_ERR(mmc->supply.vqmmc)) {
+ ret = regulator_set_voltage(mmc->supply.vqmmc, min_uv, max_uv);
+
+ if (ret) {
+ dev_err(&mmc->class_dev,
+ "Regulator set error %d: %d - %d\n",
+ ret, min_uv, max_uv);
+ return ret;
+ }
+ }
+ mci_writel(host, UHS_REG, uhs);
+
+ return 0;
+}
+
static int dw_mci_get_ro(struct mmc_host *mmc)
{
int read_only;
@@ -1131,6 +1228,9 @@ static const struct mmc_host_ops dw_mci_ops = {
.get_cd = dw_mci_get_cd,
.enable_sdio_irq = dw_mci_enable_sdio_irq,
.execute_tuning = dw_mci_execute_tuning,
+ .card_busy = dw_mci_card_busy,
+ .start_signal_voltage_switch = dw_mci_switch_voltage,
+
};
static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
@@ -1154,7 +1254,11 @@ static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
dw_mci_start_request(host, slot);
} else {
dev_vdbg(host->dev, "list empty\n");
- host->state = STATE_IDLE;
+
+ if (host->state == STATE_SENDING_CMD11)
+ host->state = STATE_WAITING_CMD11_DONE;
+ else
+ host->state = STATE_IDLE;
}
spin_unlock(&host->lock);
@@ -1265,8 +1369,10 @@ static void dw_mci_tasklet_func(unsigned long priv)
switch (state) {
case STATE_IDLE:
+ case STATE_WAITING_CMD11_DONE:
break;
+ case STATE_SENDING_CMD11:
case STATE_SENDING_CMD:
if (!test_and_clear_bit(EVENT_CMD_COMPLETE,
&host->pending_events))
@@ -1299,6 +1405,14 @@ static void dw_mci_tasklet_func(unsigned long priv)
/* fall through */
case STATE_SENDING_DATA:
+ /*
+ * We could get a data error and never a transfer
+ * complete so we'd better check for it here.
+ *
+ * Note that we don't really care if we also got a
+ * transfer complete; stopping the DMA and sending an
+ * abort won't hurt.
+ */
if (test_and_clear_bit(EVENT_DATA_ERROR,
&host->pending_events)) {
dw_mci_stop_dma(host);
@@ -1312,7 +1426,29 @@ static void dw_mci_tasklet_func(unsigned long priv)
break;
set_bit(EVENT_XFER_COMPLETE, &host->completed_events);
+
+ /*
+ * Handle an EVENT_DATA_ERROR that might have shown up
+ * before the transfer completed. This might not have
+ * been caught by the check above because the interrupt
+ * could have gone off between the previous check and
+ * the check for transfer complete.
+ *
+ * Technically this ought not be needed assuming we
+ * get a DATA_COMPLETE eventually (we'll notice the
+ * error and end the request), but it shouldn't hurt.
+ *
+ * This has the advantage of sending the stop command.
+ */
+ if (test_and_clear_bit(EVENT_DATA_ERROR,
+ &host->pending_events)) {
+ dw_mci_stop_dma(host);
+ send_stop_abort(host, data);
+ state = STATE_DATA_ERROR;
+ break;
+ }
prev_state = state = STATE_DATA_BUSY;
+
/* fall through */
case STATE_DATA_BUSY:
@@ -1335,6 +1471,22 @@ static void dw_mci_tasklet_func(unsigned long priv)
/* stop command for open-ended transfer*/
if (data->stop)
send_stop_abort(host, data);
+ } else {
+ /*
+ * If we don't have a command complete now we'll
+ * never get one since we just reset everything;
+ * better end the request.
+ *
+ * If we do have a command complete we'll fall
+ * through to the SENDING_STOP command and
+ * everything will be peachy keen.
+ */
+ if (!test_bit(EVENT_CMD_COMPLETE,
+ &host->pending_events)) {
+ host->cmd = NULL;
+ dw_mci_request_end(host, mrq);
+ goto unlock;
+ }
}
/*
@@ -1821,6 +1973,14 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
}
if (pending) {
+ /* Check volt switch first, since it can look like an error */
+ if ((host->state == STATE_SENDING_CMD11) &&
+ (pending & SDMMC_INT_VOLT_SWITCH)) {
+ mci_writel(host, RINTSTS, SDMMC_INT_VOLT_SWITCH);
+ pending &= ~SDMMC_INT_VOLT_SWITCH;
+ dw_mci_cmd_interrupt(host, pending);
+ }
+
if (pending & DW_MCI_CMD_ERROR_FLAGS) {
mci_writel(host, RINTSTS, DW_MCI_CMD_ERROR_FLAGS);
host->cmd_status = pending;
@@ -1926,7 +2086,9 @@ static void dw_mci_work_routine_card(struct work_struct *work)
switch (host->state) {
case STATE_IDLE:
+ case STATE_WAITING_CMD11_DONE:
break;
+ case STATE_SENDING_CMD11:
case STATE_SENDING_CMD:
mrq->cmd->error = -ENOMEDIUM;
if (!mrq->data)
@@ -2028,10 +2190,6 @@ static int dw_mci_of_get_slot_quirks(struct device *dev, u8 slot)
{
return 0;
}
-static struct device_node *dw_mci_of_find_slot_node(struct device *dev, u8 slot)
-{
- return NULL;
-}
#endif /* CONFIG_OF */
static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
@@ -2064,7 +2222,13 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
mmc->f_max = freq[1];
}
- mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+ /*if there are external regulators, get them*/
+ ret = mmc_regulator_get_supply(mmc);
+ if (ret == -EPROBE_DEFER)
+ goto err_host_allocated;
+
+ if (!mmc->ocr_avail)
+ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
if (host->pdata->caps)
mmc->caps = host->pdata->caps;
@@ -2085,7 +2249,9 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
if (host->pdata->caps2)
mmc->caps2 = host->pdata->caps2;
- mmc_of_parse(mmc);
+ ret = mmc_of_parse(mmc);
+ if (ret)
+ goto err_host_allocated;
if (host->pdata->blk_settings) {
mmc->max_segs = host->pdata->blk_settings->max_segs;
@@ -2117,7 +2283,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
ret = mmc_add_host(mmc);
if (ret)
- goto err_setup_bus;
+ goto err_host_allocated;
#if defined(CONFIG_DEBUG_FS)
dw_mci_init_debugfs(slot);
@@ -2128,9 +2294,9 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
return 0;
-err_setup_bus:
+err_host_allocated:
mmc_free_host(mmc);
- return -EINVAL;
+ return ret;
}
static void dw_mci_cleanup_slot(struct dw_mci_slot *slot, unsigned int id)
@@ -2423,24 +2589,6 @@ int dw_mci_probe(struct dw_mci *host)
}
}
- host->vmmc = devm_regulator_get_optional(host->dev, "vmmc");
- if (IS_ERR(host->vmmc)) {
- ret = PTR_ERR(host->vmmc);
- if (ret == -EPROBE_DEFER)
- goto err_clk_ciu;
-
- dev_info(host->dev, "no vmmc regulator found: %d\n", ret);
- host->vmmc = NULL;
- } else {
- ret = regulator_enable(host->vmmc);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(host->dev,
- "regulator_enable fail: %d\n", ret);
- goto err_clk_ciu;
- }
- }
-
host->quirks = host->pdata->quirks;
spin_lock_init(&host->lock);
@@ -2584,8 +2732,6 @@ err_workqueue:
err_dmaunmap:
if (host->use_dma && host->dma_ops->exit)
host->dma_ops->exit(host);
- if (host->vmmc)
- regulator_disable(host->vmmc);
err_clk_ciu:
if (!IS_ERR(host->ciu_clk))
@@ -2621,9 +2767,6 @@ void dw_mci_remove(struct dw_mci *host)
if (host->use_dma && host->dma_ops->exit)
host->dma_ops->exit(host);
- if (host->vmmc)
- regulator_disable(host->vmmc);
-
if (!IS_ERR(host->ciu_clk))
clk_disable_unprepare(host->ciu_clk);
@@ -2640,9 +2783,6 @@ EXPORT_SYMBOL(dw_mci_remove);
*/
int dw_mci_suspend(struct dw_mci *host)
{
- if (host->vmmc)
- regulator_disable(host->vmmc);
-
return 0;
}
EXPORT_SYMBOL(dw_mci_suspend);
@@ -2651,15 +2791,6 @@ int dw_mci_resume(struct dw_mci *host)
{
int i, ret;
- if (host->vmmc) {
- ret = regulator_enable(host->vmmc);
- if (ret) {
- dev_err(host->dev,
- "failed to enable regulator: %d\n", ret);
- return ret;
- }
- }
-
if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) {
ret = -ENODEV;
return ret;
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 08fd956d81f3..01b99e8a9190 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -99,6 +99,7 @@
#define SDMMC_INT_HLE BIT(12)
#define SDMMC_INT_FRUN BIT(11)
#define SDMMC_INT_HTO BIT(10)
+#define SDMMC_INT_VOLT_SWITCH BIT(10) /* overloads bit 10! */
#define SDMMC_INT_DRTO BIT(9)
#define SDMMC_INT_RTO BIT(8)
#define SDMMC_INT_DCRC BIT(7)
@@ -113,6 +114,7 @@
/* Command register defines */
#define SDMMC_CMD_START BIT(31)
#define SDMMC_CMD_USE_HOLD_REG BIT(29)
+#define SDMMC_CMD_VOLT_SWITCH BIT(28)
#define SDMMC_CMD_CCS_EXP BIT(23)
#define SDMMC_CMD_CEATA_RD BIT(22)
#define SDMMC_CMD_UPD_CLK BIT(21)
@@ -130,6 +132,7 @@
/* Status register defines */
#define SDMMC_GET_FCNT(x) (((x)>>17) & 0x1FFF)
#define SDMMC_STATUS_DMA_REQ BIT(31)
+#define SDMMC_STATUS_BUSY BIT(9)
/* FIFOTH register defines */
#define SDMMC_SET_FIFOTH(m, r, t) (((m) & 0x7) << 28 | \
((r) & 0xFFF) << 16 | \
@@ -150,7 +153,7 @@
#define SDMMC_GET_VERID(x) ((x) & 0xFFFF)
/* Card read threshold */
#define SDMMC_SET_RD_THLD(v, x) (((v) & 0x1FFF) << 16 | (x))
-
+#define SDMMC_UHS_18V BIT(0)
/* All ctrl reset bits */
#define SDMMC_CTRL_ALL_RESET_FLAGS \
(SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET)
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 537d6c7a5ae4..76e8bce6f46e 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -30,7 +30,9 @@
#include <asm/mach-jz4740/gpio.h>
#include <asm/cacheflush.h>
#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <asm/mach-jz4740/dma.h>
#include <asm/mach-jz4740/jz4740_mmc.h>
#define JZ_REG_MMC_STRPCL 0x00
@@ -112,6 +114,11 @@ enum jz4740_mmc_state {
JZ4740_MMC_STATE_DONE,
};
+struct jz4740_mmc_host_next {
+ int sg_len;
+ s32 cookie;
+};
+
struct jz4740_mmc_host {
struct mmc_host *mmc;
struct platform_device *pdev;
@@ -122,6 +129,7 @@ struct jz4740_mmc_host {
int card_detect_irq;
void __iomem *base;
+ struct resource *mem_res;
struct mmc_request *req;
struct mmc_command *cmd;
@@ -136,8 +144,220 @@ struct jz4740_mmc_host {
struct timer_list timeout_timer;
struct sg_mapping_iter miter;
enum jz4740_mmc_state state;
+
+ /* DMA support */
+ struct dma_chan *dma_rx;
+ struct dma_chan *dma_tx;
+ struct jz4740_mmc_host_next next_data;
+ bool use_dma;
+ int sg_len;
+
+/* The DMA trigger level is 8 words, that is to say, the DMA read
+ * trigger is when data words in MSC_RXFIFO is >= 8 and the DMA write
+ * trigger is when data words in MSC_TXFIFO is < 8.
+ */
+#define JZ4740_MMC_FIFO_HALF_SIZE 8
};
+/*----------------------------------------------------------------------------*/
+/* DMA infrastructure */
+
+static void jz4740_mmc_release_dma_channels(struct jz4740_mmc_host *host)
+{
+ if (!host->use_dma)
+ return;
+
+ dma_release_channel(host->dma_tx);
+ dma_release_channel(host->dma_rx);
+}
+
+static int jz4740_mmc_acquire_dma_channels(struct jz4740_mmc_host *host)
+{
+ dma_cap_mask_t mask;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+
+ host->dma_tx = dma_request_channel(mask, NULL, host);
+ if (!host->dma_tx) {
+ dev_err(mmc_dev(host->mmc), "Failed to get dma_tx channel\n");
+ return -ENODEV;
+ }
+
+ host->dma_rx = dma_request_channel(mask, NULL, host);
+ if (!host->dma_rx) {
+ dev_err(mmc_dev(host->mmc), "Failed to get dma_rx channel\n");
+ goto free_master_write;
+ }
+
+ /* Initialize DMA pre request cookie */
+ host->next_data.cookie = 1;
+
+ return 0;
+
+free_master_write:
+ dma_release_channel(host->dma_tx);
+ return -ENODEV;
+}
+
+static inline int jz4740_mmc_get_dma_dir(struct mmc_data *data)
+{
+ return (data->flags & MMC_DATA_READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+}
+
+static inline struct dma_chan *jz4740_mmc_get_dma_chan(struct jz4740_mmc_host *host,
+ struct mmc_data *data)
+{
+ return (data->flags & MMC_DATA_READ) ? host->dma_rx : host->dma_tx;
+}
+
+static void jz4740_mmc_dma_unmap(struct jz4740_mmc_host *host,
+ struct mmc_data *data)
+{
+ struct dma_chan *chan = jz4740_mmc_get_dma_chan(host, data);
+ enum dma_data_direction dir = jz4740_mmc_get_dma_dir(data);
+
+ dma_unmap_sg(chan->device->dev, data->sg, data->sg_len, dir);
+}
+
+/* Prepares DMA data for current/next transfer, returns non-zero on failure */
+static int jz4740_mmc_prepare_dma_data(struct jz4740_mmc_host *host,
+ struct mmc_data *data,
+ struct jz4740_mmc_host_next *next,
+ struct dma_chan *chan)
+{
+ struct jz4740_mmc_host_next *next_data = &host->next_data;
+ enum dma_data_direction dir = jz4740_mmc_get_dma_dir(data);
+ int sg_len;
+
+ if (!next && data->host_cookie &&
+ data->host_cookie != host->next_data.cookie) {
+ dev_warn(mmc_dev(host->mmc),
+ "[%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;
+ }
+
+ /* Check if next job is already prepared */
+ if (next || data->host_cookie != host->next_data.cookie) {
+ sg_len = dma_map_sg(chan->device->dev,
+ data->sg,
+ data->sg_len,
+ dir);
+
+ } else {
+ sg_len = next_data->sg_len;
+ next_data->sg_len = 0;
+ }
+
+ if (sg_len <= 0) {
+ dev_err(mmc_dev(host->mmc),
+ "Failed to map scatterlist for DMA operation\n");
+ return -EINVAL;
+ }
+
+ if (next) {
+ next->sg_len = sg_len;
+ data->host_cookie = ++next->cookie < 0 ? 1 : next->cookie;
+ } else
+ host->sg_len = sg_len;
+
+ return 0;
+}
+
+static int jz4740_mmc_start_dma_transfer(struct jz4740_mmc_host *host,
+ struct mmc_data *data)
+{
+ int ret;
+ struct dma_chan *chan;
+ struct dma_async_tx_descriptor *desc;
+ struct dma_slave_config conf = {
+ .src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
+ .dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
+ .src_maxburst = JZ4740_MMC_FIFO_HALF_SIZE,
+ .dst_maxburst = JZ4740_MMC_FIFO_HALF_SIZE,
+ };
+
+ if (data->flags & MMC_DATA_WRITE) {
+ conf.direction = DMA_MEM_TO_DEV;
+ conf.dst_addr = host->mem_res->start + JZ_REG_MMC_TXFIFO;
+ conf.slave_id = JZ4740_DMA_TYPE_MMC_TRANSMIT;
+ chan = host->dma_tx;
+ } else {
+ conf.direction = DMA_DEV_TO_MEM;
+ conf.src_addr = host->mem_res->start + JZ_REG_MMC_RXFIFO;
+ conf.slave_id = JZ4740_DMA_TYPE_MMC_RECEIVE;
+ chan = host->dma_rx;
+ }
+
+ ret = jz4740_mmc_prepare_dma_data(host, data, NULL, chan);
+ if (ret)
+ return ret;
+
+ dmaengine_slave_config(chan, &conf);
+ desc = dmaengine_prep_slave_sg(chan,
+ data->sg,
+ host->sg_len,
+ conf.direction,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if (!desc) {
+ dev_err(mmc_dev(host->mmc),
+ "Failed to allocate DMA %s descriptor",
+ conf.direction == DMA_MEM_TO_DEV ? "TX" : "RX");
+ goto dma_unmap;
+ }
+
+ dmaengine_submit(desc);
+ dma_async_issue_pending(chan);
+
+ return 0;
+
+dma_unmap:
+ jz4740_mmc_dma_unmap(host, data);
+ return -ENOMEM;
+}
+
+static void jz4740_mmc_pre_request(struct mmc_host *mmc,
+ struct mmc_request *mrq,
+ bool is_first_req)
+{
+ struct jz4740_mmc_host *host = mmc_priv(mmc);
+ struct mmc_data *data = mrq->data;
+ struct jz4740_mmc_host_next *next_data = &host->next_data;
+
+ BUG_ON(data->host_cookie);
+
+ if (host->use_dma) {
+ struct dma_chan *chan = jz4740_mmc_get_dma_chan(host, data);
+
+ if (jz4740_mmc_prepare_dma_data(host, data, next_data, chan))
+ data->host_cookie = 0;
+ }
+}
+
+static void jz4740_mmc_post_request(struct mmc_host *mmc,
+ struct mmc_request *mrq,
+ int err)
+{
+ struct jz4740_mmc_host *host = mmc_priv(mmc);
+ struct mmc_data *data = mrq->data;
+
+ if (host->use_dma && data->host_cookie) {
+ jz4740_mmc_dma_unmap(host, data);
+ data->host_cookie = 0;
+ }
+
+ if (err) {
+ struct dma_chan *chan = jz4740_mmc_get_dma_chan(host, data);
+
+ dmaengine_terminate_all(chan);
+ }
+}
+
+/*----------------------------------------------------------------------------*/
+
static void jz4740_mmc_set_irq_enabled(struct jz4740_mmc_host *host,
unsigned int irq, bool enabled)
{
@@ -442,6 +662,8 @@ static void jz4740_mmc_send_command(struct jz4740_mmc_host *host,
cmdat |= JZ_MMC_CMDAT_WRITE;
if (cmd->data->flags & MMC_DATA_STREAM)
cmdat |= JZ_MMC_CMDAT_STREAM;
+ if (host->use_dma)
+ cmdat |= JZ_MMC_CMDAT_DMA_EN;
writew(cmd->data->blksz, host->base + JZ_REG_MMC_BLKLEN);
writew(cmd->data->blocks, host->base + JZ_REG_MMC_NOB);
@@ -474,6 +696,7 @@ static irqreturn_t jz_mmc_irq_worker(int irq, void *devid)
struct jz4740_mmc_host *host = (struct jz4740_mmc_host *)devid;
struct mmc_command *cmd = host->req->cmd;
struct mmc_request *req = host->req;
+ struct mmc_data *data = cmd->data;
bool timeout = false;
if (cmd->error)
@@ -484,23 +707,37 @@ static irqreturn_t jz_mmc_irq_worker(int irq, void *devid)
if (cmd->flags & MMC_RSP_PRESENT)
jz4740_mmc_read_response(host, cmd);
- if (!cmd->data)
+ if (!data)
break;
jz_mmc_prepare_data_transfer(host);
case JZ4740_MMC_STATE_TRANSFER_DATA:
- if (cmd->data->flags & MMC_DATA_READ)
- timeout = jz4740_mmc_read_data(host, cmd->data);
+ if (host->use_dma) {
+ /* Use DMA if enabled.
+ * Data transfer direction is defined later by
+ * relying on data flags in
+ * jz4740_mmc_prepare_dma_data() and
+ * jz4740_mmc_start_dma_transfer().
+ */
+ timeout = jz4740_mmc_start_dma_transfer(host, data);
+ data->bytes_xfered = data->blocks * data->blksz;
+ } else if (data->flags & MMC_DATA_READ)
+ /* Use PIO if DMA is not enabled.
+ * Data transfer direction was defined before
+ * by relying on data flags in
+ * jz_mmc_prepare_data_transfer().
+ */
+ timeout = jz4740_mmc_read_data(host, data);
else
- timeout = jz4740_mmc_write_data(host, cmd->data);
+ timeout = jz4740_mmc_write_data(host, data);
if (unlikely(timeout)) {
host->state = JZ4740_MMC_STATE_TRANSFER_DATA;
break;
}
- jz4740_mmc_transfer_check_state(host, cmd->data);
+ jz4740_mmc_transfer_check_state(host, data);
timeout = jz4740_mmc_poll_irq(host, JZ_MMC_IRQ_DATA_TRAN_DONE);
if (unlikely(timeout)) {
@@ -664,6 +901,8 @@ static void jz4740_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
static const struct mmc_host_ops jz4740_mmc_ops = {
.request = jz4740_mmc_request,
+ .pre_req = jz4740_mmc_pre_request,
+ .post_req = jz4740_mmc_post_request,
.set_ios = jz4740_mmc_set_ios,
.get_ro = mmc_gpio_get_ro,
.get_cd = mmc_gpio_get_cd,
@@ -757,7 +996,6 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
struct mmc_host *mmc;
struct jz4740_mmc_host *host;
struct jz4740_mmc_platform_data *pdata;
- struct resource *res;
pdata = pdev->dev.platform_data;
@@ -784,10 +1022,11 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
goto err_free_host;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- host->base = devm_ioremap_resource(&pdev->dev, res);
+ host->mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ host->base = devm_ioremap_resource(&pdev->dev, host->mem_res);
if (IS_ERR(host->base)) {
ret = PTR_ERR(host->base);
+ dev_err(&pdev->dev, "Failed to ioremap base memory\n");
goto err_free_host;
}
@@ -834,6 +1073,10 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
/* It is not important when it times out, it just needs to timeout. */
set_timer_slack(&host->timeout_timer, HZ);
+ host->use_dma = true;
+ if (host->use_dma && jz4740_mmc_acquire_dma_channels(host) != 0)
+ host->use_dma = false;
+
platform_set_drvdata(pdev, host);
ret = mmc_add_host(mmc);
@@ -843,6 +1086,10 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
}
dev_info(&pdev->dev, "JZ SD/MMC card driver registered\n");
+ dev_info(&pdev->dev, "Using %s, %d-bit mode\n",
+ host->use_dma ? "DMA" : "PIO",
+ (mmc->caps & MMC_CAP_4_BIT_DATA) ? 4 : 1);
+
return 0;
err_free_irq:
@@ -850,6 +1097,8 @@ err_free_irq:
err_free_gpios:
jz4740_mmc_free_gpios(pdev);
err_gpio_bulk_free:
+ if (host->use_dma)
+ jz4740_mmc_release_dma_channels(host);
jz_gpio_bulk_free(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
err_free_host:
mmc_free_host(mmc);
@@ -872,6 +1121,9 @@ static int jz4740_mmc_remove(struct platform_device *pdev)
jz4740_mmc_free_gpios(pdev);
jz_gpio_bulk_free(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
+ if (host->use_dma)
+ jz4740_mmc_release_dma_channels(host);
+
mmc_free_host(host->mmc);
return 0;
@@ -909,7 +1161,6 @@ static struct platform_driver jz4740_mmc_driver = {
.remove = jz4740_mmc_remove,
.driver = {
.name = "jz4740-mmc",
- .owner = THIS_MODULE,
.pm = JZ4740_MMC_PM_OPS,
},
};
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index cc8d4a6099cd..e4a07546f8b6 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1436,6 +1436,7 @@ static int mmc_spi_probe(struct spi_device *spi)
host->pdata->cd_debounce);
if (status != 0)
goto fail_add_host;
+ mmc_gpiod_request_cd_irq(mmc);
}
if (host->pdata && host->pdata->flags & MMC_SPI_USE_RO_GPIO) {
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index e4d470704150..43af791e2e45 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -43,6 +43,7 @@
#include <asm/sizes.h>
#include "mmci.h"
+#include "mmci_qcom_dml.h"
#define DRIVER_NAME "mmci-pl18x"
@@ -60,12 +61,13 @@ static unsigned int fmax = 515633;
* @fifohalfsize: number of bytes that can be written when MCI_TXFIFOHALFEMPTY
* is asserted (likewise for RX)
* @data_cmd_enable: enable value for data commands.
- * @sdio: variant supports SDIO
+ * @st_sdio: enable ST specific SDIO logic
* @st_clkdiv: true if using a ST-specific clock divider algorithm
* @datactrl_mask_ddrmode: ddr mode mask in datactrl register.
* @blksz_datactrl16: true if Block size is at b16..b30 position in datactrl register
* @blksz_datactrl4: true if Block size is at b4..b16 position in datactrl
* register
+ * @datactrl_mask_sdio: SDIO enable mask in datactrl register
* @pwrreg_powerup: power up value for MMCIPOWER register
* @f_max: maximum clk frequency supported by the controller.
* @signal_direction: input/out direction of bus signals can be indicated
@@ -74,6 +76,7 @@ static unsigned int fmax = 515633;
* @pwrreg_nopower: bits in MMCIPOWER don't controls ext. power supply
* @explicit_mclk_control: enable explicit mclk control in driver.
* @qcom_fifo: enables qcom specific fifo pio read logic.
+ * @qcom_dml: enables qcom specific dma glue for dma transfers.
* @reversed_irq_handling: handle data irq before cmd irq.
*/
struct variant_data {
@@ -86,7 +89,8 @@ struct variant_data {
unsigned int fifohalfsize;
unsigned int data_cmd_enable;
unsigned int datactrl_mask_ddrmode;
- bool sdio;
+ unsigned int datactrl_mask_sdio;
+ bool st_sdio;
bool st_clkdiv;
bool blksz_datactrl16;
bool blksz_datactrl4;
@@ -98,6 +102,7 @@ struct variant_data {
bool pwrreg_nopower;
bool explicit_mclk_control;
bool qcom_fifo;
+ bool qcom_dml;
bool reversed_irq_handling;
};
@@ -133,7 +138,8 @@ static struct variant_data variant_u300 = {
.clkreg_enable = MCI_ST_U300_HWFCEN,
.clkreg_8bit_bus_enable = MCI_ST_8BIT_BUS,
.datalength_bits = 16,
- .sdio = true,
+ .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN,
+ .st_sdio = true,
.pwrreg_powerup = MCI_PWR_ON,
.f_max = 100000000,
.signal_direction = true,
@@ -146,7 +152,8 @@ static struct variant_data variant_nomadik = {
.fifohalfsize = 8 * 4,
.clkreg = MCI_CLK_ENABLE,
.datalength_bits = 24,
- .sdio = true,
+ .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN,
+ .st_sdio = true,
.st_clkdiv = true,
.pwrreg_powerup = MCI_PWR_ON,
.f_max = 100000000,
@@ -163,7 +170,8 @@ static struct variant_data variant_ux500 = {
.clkreg_8bit_bus_enable = MCI_ST_8BIT_BUS,
.clkreg_neg_edge_enable = MCI_ST_UX500_NEG_EDGE,
.datalength_bits = 24,
- .sdio = true,
+ .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN,
+ .st_sdio = true,
.st_clkdiv = true,
.pwrreg_powerup = MCI_PWR_ON,
.f_max = 100000000,
@@ -182,7 +190,8 @@ static struct variant_data variant_ux500v2 = {
.clkreg_neg_edge_enable = MCI_ST_UX500_NEG_EDGE,
.datactrl_mask_ddrmode = MCI_ST_DPSM_DDRMODE,
.datalength_bits = 24,
- .sdio = true,
+ .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN,
+ .st_sdio = true,
.st_clkdiv = true,
.blksz_datactrl16 = true,
.pwrreg_powerup = MCI_PWR_ON,
@@ -208,6 +217,7 @@ static struct variant_data variant_qcom = {
.f_max = 208000000,
.explicit_mclk_control = true,
.qcom_fifo = true,
+ .qcom_dml = true,
};
static int mmci_card_busy(struct mmc_host *mmc)
@@ -421,6 +431,7 @@ static void mmci_dma_setup(struct mmci_host *host)
{
const char *rxname, *txname;
dma_cap_mask_t mask;
+ struct variant_data *variant = host->variant;
host->dma_rx_channel = dma_request_slave_channel(mmc_dev(host->mmc), "rx");
host->dma_tx_channel = dma_request_slave_channel(mmc_dev(host->mmc), "tx");
@@ -471,6 +482,10 @@ static void mmci_dma_setup(struct mmci_host *host)
if (max_seg_size < host->mmc->max_seg_size)
host->mmc->max_seg_size = max_seg_size;
}
+
+ if (variant->qcom_dml && host->dma_rx_channel && host->dma_tx_channel)
+ if (dml_hw_init(host, host->mmc->parent->of_node))
+ variant->qcom_dml = false;
}
/*
@@ -572,6 +587,7 @@ static int __mmci_dma_prep_data(struct mmci_host *host, struct mmc_data *data,
struct dma_async_tx_descriptor *desc;
enum dma_data_direction buffer_dirn;
int nr_sg;
+ unsigned long flags = DMA_CTRL_ACK;
if (data->flags & MMC_DATA_READ) {
conf.direction = DMA_DEV_TO_MEM;
@@ -596,9 +612,12 @@ static int __mmci_dma_prep_data(struct mmci_host *host, struct mmc_data *data,
if (nr_sg == 0)
return -EINVAL;
+ if (host->variant->qcom_dml)
+ flags |= DMA_PREP_INTERRUPT;
+
dmaengine_slave_config(chan, &conf);
desc = dmaengine_prep_slave_sg(chan, data->sg, nr_sg,
- conf.direction, DMA_CTRL_ACK);
+ conf.direction, flags);
if (!desc)
goto unmap_exit;
@@ -647,6 +666,9 @@ static int mmci_dma_start_data(struct mmci_host *host, unsigned int datactrl)
dmaengine_submit(host->dma_desc_current);
dma_async_issue_pending(host->dma_current);
+ if (host->variant->qcom_dml)
+ dml_start_xfer(host, data);
+
datactrl |= MCI_DPSM_DMAENABLE;
/* Trigger the DMA transfer */
@@ -792,32 +814,26 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
if (data->flags & MMC_DATA_READ)
datactrl |= MCI_DPSM_DIRECTION;
- /* The ST Micro variants has a special bit to enable SDIO */
- if (variant->sdio && host->mmc->card)
- if (mmc_card_sdio(host->mmc->card)) {
- /*
- * The ST Micro variants has a special bit
- * to enable SDIO.
- */
- u32 clk;
+ if (host->mmc->card && mmc_card_sdio(host->mmc->card)) {
+ u32 clk;
- datactrl |= MCI_ST_DPSM_SDIOEN;
+ datactrl |= variant->datactrl_mask_sdio;
- /*
- * The ST Micro variant for SDIO small write transfers
- * needs to have clock H/W flow control disabled,
- * otherwise the transfer will not start. The threshold
- * depends on the rate of MCLK.
- */
- if (data->flags & MMC_DATA_WRITE &&
- (host->size < 8 ||
- (host->size <= 8 && host->mclk > 50000000)))
- clk = host->clk_reg & ~variant->clkreg_enable;
- else
- clk = host->clk_reg | variant->clkreg_enable;
+ /*
+ * The ST Micro variant for SDIO small write transfers
+ * needs to have clock H/W flow control disabled,
+ * otherwise the transfer will not start. The threshold
+ * depends on the rate of MCLK.
+ */
+ if (variant->st_sdio && data->flags & MMC_DATA_WRITE &&
+ (host->size < 8 ||
+ (host->size <= 8 && host->mclk > 50000000)))
+ clk = host->clk_reg & ~variant->clkreg_enable;
+ else
+ clk = host->clk_reg | variant->clkreg_enable;
- mmci_write_clkreg(host, clk);
- }
+ mmci_write_clkreg(host, clk);
+ }
if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50 ||
host->mmc->ios.timing == MMC_TIMING_MMC_DDR52)
@@ -1658,16 +1674,35 @@ static int mmci_probe(struct amba_device *dev,
writel(0, host->base + MMCIMASK1);
writel(0xfff, host->base + MMCICLEAR);
- /* If DT, cd/wp gpios must be supplied through it. */
- if (!np && gpio_is_valid(plat->gpio_cd)) {
- ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0);
- if (ret)
- goto clk_disable;
- }
- if (!np && gpio_is_valid(plat->gpio_wp)) {
- ret = mmc_gpio_request_ro(mmc, plat->gpio_wp);
- if (ret)
- goto clk_disable;
+ /*
+ * If:
+ * - not using DT but using a descriptor table, or
+ * - using a table of descriptors ALONGSIDE DT, or
+ * look up these descriptors named "cd" and "wp" right here, fail
+ * silently of these do not exist and proceed to try platform data
+ */
+ if (!np) {
+ ret = mmc_gpiod_request_cd(mmc, "cd", 0, false, 0, NULL);
+ if (ret < 0) {
+ if (ret == -EPROBE_DEFER)
+ goto clk_disable;
+ else if (gpio_is_valid(plat->gpio_cd)) {
+ ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0);
+ if (ret)
+ goto clk_disable;
+ }
+ }
+
+ ret = mmc_gpiod_request_ro(mmc, "wp", 0, false, 0, NULL);
+ if (ret < 0) {
+ if (ret == -EPROBE_DEFER)
+ goto clk_disable;
+ else if (gpio_is_valid(plat->gpio_wp)) {
+ ret = mmc_gpio_request_ro(mmc, plat->gpio_wp);
+ if (ret)
+ goto clk_disable;
+ }
+ }
}
ret = devm_request_irq(&dev->dev, dev->irq[0], mmci_irq, IRQF_SHARED,
diff --git a/drivers/mmc/host/mmci_qcom_dml.c b/drivers/mmc/host/mmci_qcom_dml.c
new file mode 100644
index 000000000000..2b7fc3764803
--- /dev/null
+++ b/drivers/mmc/host/mmci_qcom_dml.c
@@ -0,0 +1,177 @@
+/*
+ *
+ * Copyright (c) 2011, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <linux/of.h>
+#include <linux/of_dma.h>
+#include <linux/bitops.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/card.h>
+#include "mmci.h"
+
+/* Registers */
+#define DML_CONFIG 0x00
+#define PRODUCER_CRCI_MSK GENMASK(1, 0)
+#define PRODUCER_CRCI_DISABLE 0
+#define PRODUCER_CRCI_X_SEL BIT(0)
+#define PRODUCER_CRCI_Y_SEL BIT(1)
+#define CONSUMER_CRCI_MSK GENMASK(3, 2)
+#define CONSUMER_CRCI_DISABLE 0
+#define CONSUMER_CRCI_X_SEL BIT(2)
+#define CONSUMER_CRCI_Y_SEL BIT(3)
+#define PRODUCER_TRANS_END_EN BIT(4)
+#define BYPASS BIT(16)
+#define DIRECT_MODE BIT(17)
+#define INFINITE_CONS_TRANS BIT(18)
+
+#define DML_SW_RESET 0x08
+#define DML_PRODUCER_START 0x0c
+#define DML_CONSUMER_START 0x10
+#define DML_PRODUCER_PIPE_LOGICAL_SIZE 0x14
+#define DML_CONSUMER_PIPE_LOGICAL_SIZE 0x18
+#define DML_PIPE_ID 0x1c
+#define PRODUCER_PIPE_ID_SHFT 0
+#define PRODUCER_PIPE_ID_MSK GENMASK(4, 0)
+#define CONSUMER_PIPE_ID_SHFT 16
+#define CONSUMER_PIPE_ID_MSK GENMASK(20, 16)
+
+#define DML_PRODUCER_BAM_BLOCK_SIZE 0x24
+#define DML_PRODUCER_BAM_TRANS_SIZE 0x28
+
+/* other definitions */
+#define PRODUCER_PIPE_LOGICAL_SIZE 4096
+#define CONSUMER_PIPE_LOGICAL_SIZE 4096
+
+#define DML_OFFSET 0x800
+
+void dml_start_xfer(struct mmci_host *host, struct mmc_data *data)
+{
+ u32 config;
+ void __iomem *base = host->base + DML_OFFSET;
+
+ if (data->flags & MMC_DATA_READ) {
+ /* Read operation: configure DML for producer operation */
+ /* Set producer CRCI-x and disable consumer CRCI */
+ config = readl_relaxed(base + DML_CONFIG);
+ config = (config & ~PRODUCER_CRCI_MSK) | PRODUCER_CRCI_X_SEL;
+ config = (config & ~CONSUMER_CRCI_MSK) | CONSUMER_CRCI_DISABLE;
+ writel_relaxed(config, base + DML_CONFIG);
+
+ /* Set the Producer BAM block size */
+ writel_relaxed(data->blksz, base + DML_PRODUCER_BAM_BLOCK_SIZE);
+
+ /* Set Producer BAM Transaction size */
+ writel_relaxed(data->blocks * data->blksz,
+ base + DML_PRODUCER_BAM_TRANS_SIZE);
+ /* Set Producer Transaction End bit */
+ config = readl_relaxed(base + DML_CONFIG);
+ config |= PRODUCER_TRANS_END_EN;
+ writel_relaxed(config, base + DML_CONFIG);
+ /* Trigger producer */
+ writel_relaxed(1, base + DML_PRODUCER_START);
+ } else {
+ /* Write operation: configure DML for consumer operation */
+ /* Set consumer CRCI-x and disable producer CRCI*/
+ config = readl_relaxed(base + DML_CONFIG);
+ config = (config & ~CONSUMER_CRCI_MSK) | CONSUMER_CRCI_X_SEL;
+ config = (config & ~PRODUCER_CRCI_MSK) | PRODUCER_CRCI_DISABLE;
+ writel_relaxed(config, base + DML_CONFIG);
+ /* Clear Producer Transaction End bit */
+ config = readl_relaxed(base + DML_CONFIG);
+ config &= ~PRODUCER_TRANS_END_EN;
+ writel_relaxed(config, base + DML_CONFIG);
+ /* Trigger consumer */
+ writel_relaxed(1, base + DML_CONSUMER_START);
+ }
+
+ /* make sure the dml is configured before dma is triggered */
+ wmb();
+}
+
+static int of_get_dml_pipe_index(struct device_node *np, const char *name)
+{
+ int index;
+ struct of_phandle_args dma_spec;
+
+ index = of_property_match_string(np, "dma-names", name);
+
+ if (index < 0)
+ return -ENODEV;
+
+ if (of_parse_phandle_with_args(np, "dmas", "#dma-cells", index,
+ &dma_spec))
+ return -ENODEV;
+
+ if (dma_spec.args_count)
+ return dma_spec.args[0];
+
+ return -ENODEV;
+}
+
+/* Initialize the dml hardware connected to SD Card controller */
+int dml_hw_init(struct mmci_host *host, struct device_node *np)
+{
+ u32 config;
+ void __iomem *base;
+ int consumer_id, producer_id;
+
+ consumer_id = of_get_dml_pipe_index(np, "tx");
+ producer_id = of_get_dml_pipe_index(np, "rx");
+
+ if (producer_id < 0 || consumer_id < 0)
+ return -ENODEV;
+
+ base = host->base + DML_OFFSET;
+
+ /* Reset the DML block */
+ writel_relaxed(1, base + DML_SW_RESET);
+
+ /* Disable the producer and consumer CRCI */
+ config = (PRODUCER_CRCI_DISABLE | CONSUMER_CRCI_DISABLE);
+ /*
+ * Disable the bypass mode. Bypass mode will only be used
+ * if data transfer is to happen in PIO mode and don't
+ * want the BAM interface to connect with SDCC-DML.
+ */
+ config &= ~BYPASS;
+ /*
+ * Disable direct mode as we don't DML to MASTER the AHB bus.
+ * BAM connected with DML should MASTER the AHB bus.
+ */
+ config &= ~DIRECT_MODE;
+ /*
+ * Disable infinite mode transfer as we won't be doing any
+ * infinite size data transfers. All data transfer will be
+ * of finite data size.
+ */
+ config &= ~INFINITE_CONS_TRANS;
+ writel_relaxed(config, base + DML_CONFIG);
+
+ /*
+ * Initialize the logical BAM pipe size for producer
+ * and consumer.
+ */
+ writel_relaxed(PRODUCER_PIPE_LOGICAL_SIZE,
+ base + DML_PRODUCER_PIPE_LOGICAL_SIZE);
+ writel_relaxed(CONSUMER_PIPE_LOGICAL_SIZE,
+ base + DML_CONSUMER_PIPE_LOGICAL_SIZE);
+
+ /* Initialize Producer/consumer pipe id */
+ writel_relaxed(producer_id | (consumer_id << CONSUMER_PIPE_ID_SHFT),
+ base + DML_PIPE_ID);
+
+ /* Make sure dml intialization is finished */
+ mb();
+
+ return 0;
+}
diff --git a/drivers/mmc/host/mmci_qcom_dml.h b/drivers/mmc/host/mmci_qcom_dml.h
new file mode 100644
index 000000000000..6e405d09d534
--- /dev/null
+++ b/drivers/mmc/host/mmci_qcom_dml.h
@@ -0,0 +1,31 @@
+/*
+ *
+ * Copyright (c) 2011, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#ifndef __MMC_QCOM_DML_H__
+#define __MMC_QCOM_DML_H__
+
+#ifdef CONFIG_MMC_QCOM_DML
+int dml_hw_init(struct mmci_host *host, struct device_node *np);
+void dml_start_xfer(struct mmci_host *host, struct mmc_data *data);
+#else
+static inline int dml_hw_init(struct mmci_host *host, struct device_node *np)
+{
+ return -ENOSYS;
+}
+static inline void dml_start_xfer(struct mmci_host *host, struct mmc_data *data)
+{
+}
+#endif /* CONFIG_MMC_QCOM_DML */
+
+#endif /* __MMC_QCOM_DML_H__ */
diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index b4b1efbf6c16..f3e18d08e852 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -717,7 +717,6 @@ static struct platform_driver moxart_mmc_driver = {
.remove = moxart_remove,
.driver = {
.name = "mmc-moxart",
- .owner = THIS_MODULE,
.of_match_table = moxart_mmc_match,
},
};
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index ed1cb93c3784..ad111422ad55 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1238,7 +1238,6 @@ static struct platform_driver mxcmci_driver = {
.id_table = mxcmci_devtype,
.driver = {
.name = DRIVER_NAME,
- .owner = THIS_MODULE,
.pm = &mxcmci_pm_ops,
.of_match_table = mxcmci_of_match,
}
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 140885a5a4e7..cd74e5143c36 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -735,7 +735,6 @@ static struct platform_driver mxs_mmc_driver = {
.id_table = mxs_ssp_ids,
.driver = {
.name = DRIVER_NAME,
- .owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &mxs_mmc_pm_ops,
#endif
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 81974ecdfcbc..68dd6c79c378 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1494,7 +1494,6 @@ static struct platform_driver mmc_omap_driver = {
.remove = mmc_omap_remove,
.driver = {
.name = DRIVER_NAME,
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(mmc_omap_match),
},
};
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 965672663ef0..df27bb4fc098 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1829,7 +1829,17 @@ static int omap_hsmmc_disable_fclk(struct mmc_host *mmc)
return 0;
}
-static const struct mmc_host_ops omap_hsmmc_ops = {
+static int omap_hsmmc_multi_io_quirk(struct mmc_card *card,
+ unsigned int direction, int blk_size)
+{
+ /* This controller can't do multiblock reads due to hw bugs */
+ if (direction == MMC_DATA_READ)
+ return 1;
+
+ return blk_size;
+}
+
+static struct mmc_host_ops omap_hsmmc_ops = {
.enable = omap_hsmmc_enable_fclk,
.disable = omap_hsmmc_disable_fclk,
.post_req = omap_hsmmc_post_req,
@@ -2101,7 +2111,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
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;
+ omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
}
pm_runtime_enable(host->dev);
@@ -2489,7 +2499,6 @@ static struct platform_driver omap_hsmmc_driver = {
.remove = omap_hsmmc_remove,
.driver = {
.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/pxamci.c b/drivers/mmc/host/pxamci.c
index 32fe11323f39..1b6d0bfe35f5 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -474,7 +474,7 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
unsigned int clk = rate / ios->clock;
if (host->clkrt == CLKRT_OFF)
- clk_enable(host->clk);
+ clk_prepare_enable(host->clk);
if (ios->clock == 26000000) {
/* to support 26MHz */
@@ -501,7 +501,7 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
pxamci_stop_clock(host);
if (host->clkrt != CLKRT_OFF) {
host->clkrt = CLKRT_OFF;
- clk_disable(host->clk);
+ clk_disable_unprepare(host->clk);
}
}
@@ -885,7 +885,6 @@ static struct platform_driver pxamci_driver = {
.remove = pxamci_remove,
.driver = {
.name = DRIVER_NAME,
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(pxa_mmc_dt_ids),
},
};
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index dfde4a210238..c70b602f8f1e 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -412,6 +412,13 @@ static void sd_send_cmd_get_rsp(struct realtek_pci_sdmmc *host,
}
if (rsp_type == SD_RSP_TYPE_R2) {
+ /*
+ * The controller offloads the last byte {CRC-7, end bit 1'b1}
+ * of response type R2. Assign dummy CRC, 0, and end bit to the
+ * byte(ptr[16], goes into the LSB of resp[3] later).
+ */
+ ptr[16] = 1;
+
for (i = 0; i < 4; i++) {
cmd->resp[i] = get_unaligned_be32(ptr + 1 + i * 4);
dev_dbg(sdmmc_dev(host), "cmd->resp[%d] = 0x%08x\n",
@@ -1292,6 +1299,7 @@ static void realtek_init_host(struct realtek_pci_sdmmc *host)
mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SD_HIGHSPEED |
MMC_CAP_MMC_HIGHSPEED | MMC_CAP_BUS_WIDTH_TEST |
MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25;
+ mmc->caps2 = MMC_CAP2_NO_PRESCAN_POWERUP | MMC_CAP2_FULL_PWR_CYCLE;
mmc->max_current_330 = 400;
mmc->max_current_180 = 800;
mmc->ops = &realtek_pci_sdmmc_ops;
@@ -1416,7 +1424,6 @@ static struct platform_driver rtsx_pci_sdmmc_driver = {
.remove = rtsx_pci_sdmmc_drv_remove,
.id_table = rtsx_pci_sdmmc_ids,
.driver = {
- .owner = THIS_MODULE,
.name = DRV_NAME_RTSX_PCI_SDMMC,
},
};
diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
index 5d3766e792f0..88af827e086b 100644
--- a/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -435,6 +435,13 @@ static void sd_send_cmd_get_rsp(struct rtsx_usb_sdmmc *host,
}
if (rsp_type == SD_RSP_TYPE_R2) {
+ /*
+ * The controller offloads the last byte {CRC-7, end bit 1'b1}
+ * of response type R2. Assign dummy CRC, 0, and end bit to the
+ * byte(ptr[16], goes into the LSB of resp[3] later).
+ */
+ ptr[16] = 1;
+
for (i = 0; i < 4; i++) {
cmd->resp[i] = get_unaligned_be32(ptr + 1 + i * 4);
dev_dbg(sdmmc_dev(host), "cmd->resp[%d] = 0x%08x\n",
@@ -1329,6 +1336,7 @@ static void rtsx_usb_init_host(struct rtsx_usb_sdmmc *host)
MMC_CAP_MMC_HIGHSPEED | MMC_CAP_BUS_WIDTH_TEST |
MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | MMC_CAP_UHS_SDR50 |
MMC_CAP_NEEDS_POLL;
+ mmc->caps2 = MMC_CAP2_NO_PRESCAN_POWERUP | MMC_CAP2_FULL_PWR_CYCLE;
mmc->max_current_330 = 400;
mmc->max_current_180 = 800;
@@ -1445,7 +1453,6 @@ static struct platform_driver rtsx_usb_sdmmc_driver = {
.remove = rtsx_usb_sdmmc_drv_remove,
.id_table = rtsx_usb_sdmmc_ids,
.driver = {
- .owner = THIS_MODULE,
.name = "rtsx_usb_sdmmc",
},
};
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index e5516a226362..94cddf381ba3 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -985,7 +985,8 @@ static int s3cmci_setup_data(struct s3cmci_host *host, struct mmc_data *data)
* one block being transferred. */
if (data->blocks > 1) {
- pr_warning("%s: can't do non-word sized block transfers (blksz %d)\n", __func__, data->blksz);
+ pr_warn("%s: can't do non-word sized block transfers (blksz %d)\n",
+ __func__, data->blksz);
return -EINVAL;
}
}
@@ -1874,7 +1875,6 @@ MODULE_DEVICE_TABLE(platform, s3cmci_driver_ids);
static struct platform_driver s3cmci_driver = {
.driver = {
.name = "s3c-sdi",
- .owner = THIS_MODULE,
},
.id_table = s3cmci_driver_ids,
.probe = s3cmci_probe,
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 8c5337002c51..9cccc0e89b04 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -67,6 +67,8 @@ struct sdhci_acpi_slot {
unsigned int caps2;
mmc_pm_flag_t pm_caps;
unsigned int flags;
+ int (*probe_slot)(struct platform_device *, const char *, const char *);
+ int (*remove_slot)(struct platform_device *);
};
struct sdhci_acpi_host {
@@ -122,13 +124,67 @@ static const struct sdhci_acpi_chip sdhci_acpi_chip_int = {
.ops = &sdhci_acpi_ops_int,
};
+static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev,
+ const char *hid, const char *uid)
+{
+ struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
+ struct sdhci_host *host;
+
+ if (!c || !c->host)
+ return 0;
+
+ host = c->host;
+
+ /* Platform specific code during emmc proble slot goes here */
+
+ if (hid && uid && !strcmp(hid, "80860F14") && !strcmp(uid, "1") &&
+ sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 &&
+ sdhci_readl(host, SDHCI_CAPABILITIES_1) == 0x00000807)
+ host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
+
+ return 0;
+}
+
+static int sdhci_acpi_sdio_probe_slot(struct platform_device *pdev,
+ const char *hid, const char *uid)
+{
+ struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
+ struct sdhci_host *host;
+
+ if (!c || !c->host)
+ return 0;
+
+ host = c->host;
+
+ /* Platform specific code during emmc proble slot goes here */
+
+ return 0;
+}
+
+static int sdhci_acpi_sd_probe_slot(struct platform_device *pdev,
+ const char *hid, const char *uid)
+{
+ struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
+ struct sdhci_host *host;
+
+ if (!c || !c->host || !c->slot)
+ return 0;
+
+ host = c->host;
+
+ /* Platform specific code during emmc proble slot goes here */
+
+ return 0;
+}
+
static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = {
.chip = &sdhci_acpi_chip_int,
.caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR,
.caps2 = MMC_CAP2_HC_ERASE_SZ,
.flags = SDHCI_ACPI_RUNTIME_PM,
- .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+ .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | SDHCI_QUIRK2_STOP_WITH_TC,
+ .probe_slot = sdhci_acpi_emmc_probe_slot,
};
static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
@@ -137,12 +193,15 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
.caps = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD,
.flags = SDHCI_ACPI_RUNTIME_PM,
.pm_caps = MMC_PM_KEEP_POWER,
+ .probe_slot = sdhci_acpi_sdio_probe_slot,
};
static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = {
.flags = SDHCI_ACPI_SD_CD | SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL |
SDHCI_ACPI_RUNTIME_PM,
- .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,
+ .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
+ SDHCI_QUIRK2_STOP_WITH_TC,
+ .probe_slot = sdhci_acpi_sd_probe_slot,
};
struct sdhci_acpi_uid_slot {
@@ -156,6 +215,7 @@ static const struct sdhci_acpi_uid_slot sdhci_acpi_uids[] = {
{ "80860F14" , "3" , &sdhci_acpi_slot_int_sd },
{ "80860F16" , NULL, &sdhci_acpi_slot_int_sd },
{ "INT33BB" , "2" , &sdhci_acpi_slot_int_sdio },
+ { "INT33BB" , "3" , &sdhci_acpi_slot_int_sd },
{ "INT33C6" , NULL, &sdhci_acpi_slot_int_sdio },
{ "INT3436" , NULL, &sdhci_acpi_slot_int_sdio },
{ "PNP0D40" },
@@ -173,8 +233,8 @@ static const struct acpi_device_id sdhci_acpi_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids);
-static const struct sdhci_acpi_slot *sdhci_acpi_get_slot_by_ids(const char *hid,
- const char *uid)
+static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(const char *hid,
+ const char *uid)
{
const struct sdhci_acpi_uid_slot *u;
@@ -189,24 +249,6 @@ static const struct sdhci_acpi_slot *sdhci_acpi_get_slot_by_ids(const char *hid,
return NULL;
}
-static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(acpi_handle handle,
- const char *hid)
-{
- const struct sdhci_acpi_slot *slot;
- struct acpi_device_info *info;
- const char *uid = NULL;
- acpi_status status;
-
- status = acpi_get_object_info(handle, &info);
- if (!ACPI_FAILURE(status) && (info->valid & ACPI_VALID_UID))
- uid = info->unique_id.string;
-
- slot = sdhci_acpi_get_slot_by_ids(hid, uid);
-
- kfree(info);
- return slot;
-}
-
static int sdhci_acpi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -217,6 +259,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
struct resource *iomem;
resource_size_t len;
const char *hid;
+ const char *uid;
int err;
if (acpi_bus_get_device(handle, &device))
@@ -226,6 +269,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
return -ENODEV;
hid = acpi_device_hid(device);
+ uid = device->pnp.unique_id;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iomem)
@@ -244,7 +288,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
c = sdhci_priv(host);
c->host = host;
- c->slot = sdhci_acpi_get_slot(handle, hid);
+ c->slot = sdhci_acpi_get_slot(hid, uid);
c->pdev = pdev;
c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM);
@@ -277,6 +321,11 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
}
if (c->slot) {
+ if (c->slot->probe_slot) {
+ err = c->slot->probe_slot(pdev, hid, uid);
+ if (err)
+ goto err_free;
+ }
if (c->slot->chip) {
host->ops = c->slot->chip->ops;
host->quirks |= c->slot->chip->quirks;
@@ -297,7 +346,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL);
- if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0)) {
+ if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL)) {
dev_warn(dev, "failed to setup card detect gpio\n");
c->use_runtime_pm = false;
}
@@ -334,6 +383,9 @@ static int sdhci_acpi_remove(struct platform_device *pdev)
pm_runtime_put_noidle(dev);
}
+ if (c->slot && c->slot->remove_slot)
+ c->slot->remove_slot(pdev);
+
dead = (sdhci_readl(c->host, SDHCI_INT_STATUS) == ~0);
sdhci_remove_host(c->host, dead);
sdhci_free_host(c->host);
@@ -385,20 +437,13 @@ static int sdhci_acpi_runtime_idle(struct device *dev)
return 0;
}
-#else
-
-#define sdhci_acpi_runtime_suspend NULL
-#define sdhci_acpi_runtime_resume NULL
-#define sdhci_acpi_runtime_idle NULL
-
#endif
static const struct dev_pm_ops sdhci_acpi_pm_ops = {
.suspend = sdhci_acpi_suspend,
.resume = sdhci_acpi_resume,
- .runtime_suspend = sdhci_acpi_runtime_suspend,
- .runtime_resume = sdhci_acpi_runtime_resume,
- .runtime_idle = sdhci_acpi_runtime_idle,
+ SET_RUNTIME_PM_OPS(sdhci_acpi_runtime_suspend,
+ sdhci_acpi_runtime_resume, sdhci_acpi_runtime_idle)
};
static struct platform_driver sdhci_acpi_driver = {
diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c
index dd780c315a63..e7e4fbdcbfe0 100644
--- a/drivers/mmc/host/sdhci-bcm-kona.c
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -225,7 +225,7 @@ static struct sdhci_pltfm_data sdhci_pltfm_data_kona = {
SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
};
-static struct __initconst of_device_id sdhci_bcm_kona_of_match[] = {
+static const struct of_device_id sdhci_bcm_kona_of_match[] = {
{ .compatible = "brcm,kona-sdhci"},
{ .compatible = "bcm,kona-sdhci"}, /* deprecated name */
{}
@@ -359,7 +359,6 @@ static int sdhci_bcm_kona_remove(struct platform_device *pdev)
static struct platform_driver sdhci_bcm_kona_driver = {
.driver = {
.name = "sdhci-kona",
- .owner = THIS_MODULE,
.pm = SDHCI_PLTFM_PMOPS,
.of_match_table = sdhci_bcm_kona_of_match,
},
diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c
index 46af9a439d7b..439d259fdf1d 100644
--- a/drivers/mmc/host/sdhci-bcm2835.c
+++ b/drivers/mmc/host/sdhci-bcm2835.c
@@ -194,7 +194,6 @@ MODULE_DEVICE_TABLE(of, bcm2835_sdhci_of_match);
static struct platform_driver bcm2835_sdhci_driver = {
.driver = {
.name = "sdhci-bcm2835",
- .owner = THIS_MODULE,
.of_match_table = bcm2835_sdhci_of_match,
.pm = SDHCI_PLTFM_PMOPS,
},
diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c
index 14b74075589a..a7935a8d0922 100644
--- a/drivers/mmc/host/sdhci-cns3xxx.c
+++ b/drivers/mmc/host/sdhci-cns3xxx.c
@@ -106,7 +106,6 @@ static int sdhci_cns3xxx_remove(struct platform_device *pdev)
static struct platform_driver sdhci_cns3xxx_driver = {
.driver = {
.name = "sdhci-cns3xxx",
- .owner = THIS_MODULE,
.pm = SDHCI_PLTFM_PMOPS,
},
.probe = sdhci_cns3xxx_probe,
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index e6278ec007d7..ca969d271a27 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -146,7 +146,6 @@ MODULE_DEVICE_TABLE(of, sdhci_dove_of_match_table);
static struct platform_driver sdhci_dove_driver = {
.driver = {
.name = "sdhci-dove",
- .owner = THIS_MODULE,
.pm = SDHCI_PLTFM_PMOPS,
.of_match_table = sdhci_dove_of_match_table,
},
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index ccec0e32590f..587ee0edeb57 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -880,6 +880,24 @@ static void esdhc_reset(struct sdhci_host *host, u8 mask)
sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
}
+static unsigned int esdhc_get_max_timeout_count(struct sdhci_host *host)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct pltfm_imx_data *imx_data = pltfm_host->priv;
+
+ return esdhc_is_usdhc(imx_data) ? 1 << 28 : 1 << 27;
+}
+
+static void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct pltfm_imx_data *imx_data = pltfm_host->priv;
+
+ /* use maximum timeout counter */
+ sdhci_writeb(host, esdhc_is_usdhc(imx_data) ? 0xF : 0xE,
+ SDHCI_TIMEOUT_CONTROL);
+}
+
static struct sdhci_ops sdhci_esdhc_ops = {
.read_l = esdhc_readl_le,
.read_w = esdhc_readw_le,
@@ -889,7 +907,9 @@ static struct sdhci_ops sdhci_esdhc_ops = {
.set_clock = esdhc_pltfm_set_clock,
.get_max_clock = esdhc_pltfm_get_max_clock,
.get_min_clock = esdhc_pltfm_get_min_clock,
+ .get_max_timeout_count = esdhc_get_max_timeout_count,
.get_ro = esdhc_pltfm_get_ro,
+ .set_timeout = esdhc_set_timeout,
.set_bus_width = esdhc_pltfm_set_bus_width,
.set_uhs_signaling = esdhc_set_uhs_signaling,
.reset = esdhc_reset,
@@ -1207,7 +1227,6 @@ static const struct dev_pm_ops sdhci_esdhc_pmops = {
static struct platform_driver sdhci_esdhc_imx_driver = {
.driver = {
.name = "sdhci-esdhc-imx",
- .owner = THIS_MODULE,
.of_match_table = imx_esdhc_dt_ids,
.pm = &sdhci_esdhc_pmops,
},
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 1a6661ed6205..30804385af6d 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -46,24 +46,6 @@
#define CMUX_SHIFT_PHASE_SHIFT 24
#define CMUX_SHIFT_PHASE_MASK (7 << CMUX_SHIFT_PHASE_SHIFT)
-static const u32 tuning_block_64[] = {
- 0x00ff0fff, 0xccc3ccff, 0xffcc3cc3, 0xeffefffe,
- 0xddffdfff, 0xfbfffbff, 0xff7fffbf, 0xefbdf777,
- 0xf0fff0ff, 0x3cccfc0f, 0xcfcc33cc, 0xeeffefff,
- 0xfdfffdff, 0xffbfffdf, 0xfff7ffbb, 0xde7b7ff7
-};
-
-static const u32 tuning_block_128[] = {
- 0xff00ffff, 0x0000ffff, 0xccccffff, 0xcccc33cc,
- 0xcc3333cc, 0xffffcccc, 0xffffeeff, 0xffeeeeff,
- 0xffddffff, 0xddddffff, 0xbbffffff, 0xbbffffff,
- 0xffffffbb, 0xffffff77, 0x77ff7777, 0xffeeddbb,
- 0x00ffffff, 0x00ffffff, 0xccffff00, 0xcc33cccc,
- 0x3333cccc, 0xffcccccc, 0xffeeffff, 0xeeeeffff,
- 0xddffffff, 0xddffffff, 0xffffffdd, 0xffffffbb,
- 0xffffbbbb, 0xffff77ff, 0xff7777ff, 0xeeddbb77
-};
-
struct sdhci_msm_host {
struct platform_device *pdev;
void __iomem *core_mem; /* MSM SDCC mapped address */
@@ -358,8 +340,8 @@ static int sdhci_msm_execute_tuning(struct sdhci_host *host, u32 opcode)
{
int tuning_seq_cnt = 3;
u8 phase, *data_buf, tuned_phases[16], tuned_phase_cnt = 0;
- const u32 *tuning_block_pattern = tuning_block_64;
- int size = sizeof(tuning_block_64); /* Pattern size in bytes */
+ const u8 *tuning_block_pattern = tuning_blk_pattern_4bit;
+ int size = sizeof(tuning_blk_pattern_4bit);
int rc;
struct mmc_host *mmc = host->mmc;
struct mmc_ios ios = host->mmc->ios;
@@ -375,8 +357,8 @@ static int sdhci_msm_execute_tuning(struct sdhci_host *host, u32 opcode)
if ((opcode == MMC_SEND_TUNING_BLOCK_HS200) &&
(mmc->ios.bus_width == MMC_BUS_WIDTH_8)) {
- tuning_block_pattern = tuning_block_128;
- size = sizeof(tuning_block_128);
+ tuning_block_pattern = tuning_blk_pattern_8bit;
+ size = sizeof(tuning_blk_pattern_8bit);
}
data_buf = kmalloc(size, GFP_KERNEL);
@@ -610,7 +592,6 @@ static struct platform_driver sdhci_msm_driver = {
.remove = sdhci_msm_remove,
.driver = {
.name = "sdhci_msm",
- .owner = THIS_MODULE,
.of_match_table = sdhci_msm_dt_match,
},
};
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 5bd1092310f2..981d66e5c023 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -213,7 +213,6 @@ MODULE_DEVICE_TABLE(of, sdhci_arasan_of_match);
static struct platform_driver sdhci_arasan_driver = {
.driver = {
.name = "sdhci-arasan",
- .owner = THIS_MODULE,
.of_match_table = sdhci_arasan_of_match,
.pm = &sdhci_arasan_dev_pm_ops,
},
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 8be4dcfb49a0..8872c85c63d4 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -388,7 +388,6 @@ MODULE_DEVICE_TABLE(of, sdhci_esdhc_of_match);
static struct platform_driver sdhci_esdhc_driver = {
.driver = {
.name = "sdhci-esdhc",
- .owner = THIS_MODULE,
.of_match_table = sdhci_esdhc_of_match,
.pm = ESDHC_PMOPS,
},
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index b341661369a2..be479279a1d5 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -89,7 +89,6 @@ MODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match);
static struct platform_driver sdhci_hlwd_driver = {
.driver = {
.name = "sdhci-hlwd",
- .owner = THIS_MODULE,
.of_match_table = sdhci_hlwd_of_match,
.pm = SDHCI_PLTFM_PMOPS,
},
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index c3a1debc9289..61192973e7cb 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -24,6 +24,7 @@
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/pm_runtime.h>
+#include <linux/mmc/slot-gpio.h>
#include <linux/mmc/sdhci-pci-data.h>
#include "sdhci.h"
@@ -271,6 +272,8 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR;
slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
slot->hw_reset = sdhci_pci_int_hw_reset;
+ if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
+ slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
return 0;
}
@@ -280,22 +283,35 @@ static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
return 0;
}
+static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
+{
+ slot->cd_con_id = NULL;
+ slot->cd_idx = 0;
+ slot->cd_override_level = true;
+ return 0;
+}
+
static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
.allow_runtime_pm = true,
.probe_slot = byt_emmc_probe_slot,
- .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+ .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+ SDHCI_QUIRK2_STOP_WITH_TC,
};
static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
- .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
+ .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
+ SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
.allow_runtime_pm = true,
.probe_slot = byt_sdio_probe_slot,
};
static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
- .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,
+ .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
+ SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+ SDHCI_QUIRK2_STOP_WITH_TC,
.allow_runtime_pm = true,
.own_cd_for_runtime_pm = true,
+ .probe_slot = byt_sd_probe_slot,
};
/* Define Host controllers for Intel Merrifield platform */
@@ -317,7 +333,9 @@ static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot *slot)
static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
- .quirks2 = SDHCI_QUIRK2_BROKEN_HS200,
+ .quirks2 = SDHCI_QUIRK2_BROKEN_HS200 |
+ SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+ .allow_runtime_pm = true,
.probe_slot = intel_mrfl_mmc_probe_slot,
};
@@ -876,6 +894,29 @@ static const struct pci_device_id pci_ids[] = {
.driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
},
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BSW_EMMC,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
+ },
+
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BSW_SDIO,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
+ },
+
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BSW_SD,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
+ },
{
.vendor = PCI_VENDOR_ID_INTEL,
@@ -1269,20 +1310,13 @@ static int sdhci_pci_runtime_idle(struct device *dev)
return 0;
}
-#else
-
-#define sdhci_pci_runtime_suspend NULL
-#define sdhci_pci_runtime_resume NULL
-#define sdhci_pci_runtime_idle NULL
-
#endif
static const struct dev_pm_ops sdhci_pci_pm_ops = {
.suspend = sdhci_pci_suspend,
.resume = sdhci_pci_resume,
- .runtime_suspend = sdhci_pci_runtime_suspend,
- .runtime_resume = sdhci_pci_runtime_resume,
- .runtime_idle = sdhci_pci_runtime_idle,
+ SET_RUNTIME_PM_OPS(sdhci_pci_runtime_suspend,
+ sdhci_pci_runtime_resume, sdhci_pci_runtime_idle)
};
/*****************************************************************************\
@@ -1332,6 +1366,7 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
slot->pci_bar = bar;
slot->rst_n_gpio = -EINVAL;
slot->cd_gpio = -EINVAL;
+ slot->cd_idx = -1;
/* Retrieve platform data if there is any */
if (*sdhci_pci_get_data)
@@ -1390,6 +1425,13 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
host->mmc->slotno = slotno;
host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
+ if (slot->cd_idx >= 0 &&
+ mmc_gpiod_request_cd(host->mmc, slot->cd_con_id, slot->cd_idx,
+ slot->cd_override_level, 0, NULL)) {
+ dev_warn(&pdev->dev, "failed to setup card detect gpio\n");
+ slot->cd_idx = -1;
+ }
+
ret = sdhci_add_host(host);
if (ret)
goto remove;
@@ -1402,7 +1444,7 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
* Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure.
*/
if (chip->fixes && chip->fixes->own_cd_for_runtime_pm &&
- !gpio_is_valid(slot->cd_gpio))
+ !gpio_is_valid(slot->cd_gpio) && slot->cd_idx < 0)
chip->allow_runtime_pm = false;
return slot;
diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h
index c101477ef3be..d57c3d169914 100644
--- a/drivers/mmc/host/sdhci-pci.h
+++ b/drivers/mmc/host/sdhci-pci.h
@@ -11,6 +11,9 @@
#define PCI_DEVICE_ID_INTEL_BYT_SDIO 0x0f15
#define PCI_DEVICE_ID_INTEL_BYT_SD 0x0f16
#define PCI_DEVICE_ID_INTEL_BYT_EMMC2 0x0f50
+#define PCI_DEVICE_ID_INTEL_BSW_EMMC 0x2294
+#define PCI_DEVICE_ID_INTEL_BSW_SDIO 0x2295
+#define PCI_DEVICE_ID_INTEL_BSW_SD 0x2296
#define PCI_DEVICE_ID_INTEL_MRFL_MMC 0x1190
#define PCI_DEVICE_ID_INTEL_CLV_SDIO0 0x08f9
#define PCI_DEVICE_ID_INTEL_CLV_SDIO1 0x08fa
@@ -61,6 +64,10 @@ struct sdhci_pci_slot {
int cd_gpio;
int cd_irq;
+ char *cd_con_id;
+ int cd_idx;
+ bool cd_override_level;
+
void (*hw_reset)(struct sdhci_host *host);
};
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 7e834fb78f42..c5b01d6bb85d 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -123,7 +123,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
size_t priv_size)
{
struct sdhci_host *host;
- struct device_node *np = pdev->dev.of_node;
struct resource *iomem;
int ret;
@@ -136,13 +135,8 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
if (resource_size(iomem) < 0x100)
dev_err(&pdev->dev, "Invalid iomem size!\n");
- /* Some PCI-based MFD need the parent here */
- if (pdev->dev.parent != &platform_bus && !np)
- host = sdhci_alloc_host(pdev->dev.parent,
- sizeof(struct sdhci_pltfm_host) + priv_size);
- else
- host = sdhci_alloc_host(&pdev->dev,
- sizeof(struct sdhci_pltfm_host) + priv_size);
+ host = sdhci_alloc_host(&pdev->dev,
+ sizeof(struct sdhci_pltfm_host) + priv_size);
if (IS_ERR(host)) {
ret = PTR_ERR(host);
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index 3c0f3c0a1cc8..b4c23e983baf 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -261,7 +261,6 @@ static int sdhci_pxav2_remove(struct platform_device *pdev)
static struct platform_driver sdhci_pxav2_driver = {
.driver = {
.name = "sdhci-pxav2",
- .owner = THIS_MODULE,
#ifdef CONFIG_OF
.of_match_table = sdhci_pxav2_of_match,
#endif
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index 6f842fb8e6b8..5036d7d39529 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -224,12 +224,11 @@ static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
static const struct sdhci_ops pxav3_sdhci_ops = {
.set_clock = sdhci_set_clock,
- .set_uhs_signaling = pxav3_set_uhs_signaling,
.platform_send_init_74_clocks = pxav3_gen_init_74_clocks,
.get_max_clock = sdhci_pltfm_clk_get_max_clock,
.set_bus_width = sdhci_set_bus_width,
.reset = pxav3_reset,
- .set_uhs_signaling = sdhci_set_uhs_signaling,
+ .set_uhs_signaling = pxav3_set_uhs_signaling,
};
static struct sdhci_pltfm_data sdhci_pxav3_pdata = {
@@ -381,11 +380,11 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
return 0;
-err_of_parse:
-err_cd_req:
err_add_host:
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
+err_of_parse:
+err_cd_req:
clk_disable_unprepare(clk);
err_clk_get:
err_mbus_win:
@@ -492,7 +491,6 @@ static struct platform_driver sdhci_pxav3_driver = {
#ifdef CONFIG_OF
.of_match_table = sdhci_pxav3_of_match,
#endif
- .owner = THIS_MODULE,
.pm = SDHCI_PXAV3_PMOPS,
},
.probe = sdhci_pxav3_probe,
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index fa5954a05449..0ce6eb17deaf 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -606,8 +606,6 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
ret = sdhci_add_host(host);
if (ret) {
dev_err(dev, "sdhci_add_host() failed\n");
- pm_runtime_forbid(&pdev->dev);
- pm_runtime_get_noresume(&pdev->dev);
goto err_req_regs;
}
@@ -618,6 +616,8 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
return 0;
err_req_regs:
+ pm_runtime_disable(&pdev->dev);
+
err_no_busclks:
clk_disable_unprepare(sc->clk_io);
@@ -747,7 +747,6 @@ static struct platform_driver sdhci_s3c_driver = {
.remove = sdhci_s3c_remove,
.id_table = sdhci_s3c_driver_ids,
.driver = {
- .owner = THIS_MODULE,
.name = "s3c-sdhci",
.of_match_table = of_match_ptr(sdhci_s3c_dt_match),
.pm = SDHCI_S3C_PMOPS,
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
index 17004531d089..dd29d47c07aa 100644
--- a/drivers/mmc/host/sdhci-sirf.c
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -15,6 +15,8 @@
#include <linux/mmc/slot-gpio.h>
#include "sdhci-pltfm.h"
+#define SDHCI_SIRF_8BITBUS BIT(3)
+
struct sdhci_sirf_priv {
struct clk *clk;
int gpio_cd;
@@ -27,10 +29,30 @@ static unsigned int sdhci_sirf_get_max_clk(struct sdhci_host *host)
return clk_get_rate(priv->clk);
}
+static void sdhci_sirf_set_bus_width(struct sdhci_host *host, int width)
+{
+ u8 ctrl;
+
+ ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
+ ctrl &= ~(SDHCI_CTRL_4BITBUS | SDHCI_SIRF_8BITBUS);
+
+ /*
+ * CSR atlas7 and prima2 SD host version is not 3.0
+ * 8bit-width enable bit of CSR SD hosts is 3,
+ * while stardard hosts use bit 5
+ */
+ if (width == MMC_BUS_WIDTH_8)
+ ctrl |= SDHCI_SIRF_8BITBUS;
+ else if (width == MMC_BUS_WIDTH_4)
+ ctrl |= SDHCI_CTRL_4BITBUS;
+
+ sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
+}
+
static struct sdhci_ops sdhci_sirf_ops = {
.set_clock = sdhci_set_clock,
.get_max_clock = sdhci_sirf_get_max_clk,
- .set_bus_width = sdhci_set_bus_width,
+ .set_bus_width = sdhci_sirf_set_bus_width,
.reset = sdhci_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling,
};
@@ -94,6 +116,7 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
ret);
goto err_request_cd;
}
+ mmc_gpiod_request_cd_irq(host->mmc);
}
return 0;
@@ -167,7 +190,6 @@ MODULE_DEVICE_TABLE(of, sdhci_sirf_of_match);
static struct platform_driver sdhci_sirf_driver = {
.driver = {
.name = "sdhci-sirf",
- .owner = THIS_MODULE,
.of_match_table = sdhci_sirf_of_match,
#ifdef CONFIG_PM_SLEEP
.pm = &sdhci_sirf_pm_ops,
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 9d535c7336ef..22e58268545f 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -230,7 +230,6 @@ MODULE_DEVICE_TABLE(of, sdhci_spear_id_table);
static struct platform_driver sdhci_driver = {
.driver = {
.name = "sdhci",
- .owner = THIS_MODULE,
.pm = &sdhci_pm_ops,
.of_match_table = of_match_ptr(sdhci_spear_id_table),
},
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 33100d10d176..59797106af93 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -318,7 +318,6 @@ static int sdhci_tegra_remove(struct platform_device *pdev)
static struct platform_driver sdhci_tegra_driver = {
.driver = {
.name = "sdhci-tegra",
- .owner = THIS_MODULE,
.of_match_table = sdhci_tegra_dt_match,
.pm = SDHCI_PLTFM_PMOPS,
},
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 37b2a9ae52ef..ada1a3ea3a87 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -707,19 +707,28 @@ static void sdhci_set_transfer_irqs(struct sdhci_host *host)
sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
}
-static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
+static void sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)
{
u8 count;
+
+ if (host->ops->set_timeout) {
+ host->ops->set_timeout(host, cmd);
+ } else {
+ count = sdhci_calc_timeout(host, cmd);
+ sdhci_writeb(host, count, SDHCI_TIMEOUT_CONTROL);
+ }
+}
+
+static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
+{
u8 ctrl;
struct mmc_data *data = cmd->data;
int ret;
WARN_ON(host->data);
- if (data || (cmd->flags & MMC_RSP_BUSY)) {
- count = sdhci_calc_timeout(host, cmd);
- sdhci_writeb(host, count, SDHCI_TIMEOUT_CONTROL);
- }
+ if (data || (cmd->flags & MMC_RSP_BUSY))
+ sdhci_set_timeout(host, cmd);
if (!data)
return;
@@ -1007,6 +1016,7 @@ void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
mod_timer(&host->timer, timeout);
host->cmd = cmd;
+ host->busy_handle = 0;
sdhci_prepare_data(host, cmd);
@@ -1194,7 +1204,6 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
clock_set:
if (real_div)
host->mmc->actual_clock = (host->max_clk * clk_mul) / real_div;
-
clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
<< SDHCI_DIVIDER_HI_SHIFT;
@@ -1357,11 +1366,12 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
present_state = sdhci_readl(host, SDHCI_PRESENT_STATE);
/*
* Check if the re-tuning timer has already expired and there
- * is no on-going data transfer. If so, we need to execute
- * tuning procedure before sending command.
+ * is no on-going data transfer and DAT0 is not busy. If so,
+ * we need to execute tuning procedure before sending command.
*/
if ((host->flags & SDHCI_NEEDS_RETUNING) &&
- !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))) {
+ !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ)) &&
+ (present_state & SDHCI_DATA_0_LVL_MASK)) {
if (mmc->card) {
/* eMMC uses cmd21 but sd and sdio use cmd19 */
tuning_opcode =
@@ -1471,6 +1481,18 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
if (!ios->clock || ios->clock != host->clock) {
host->ops->set_clock(host, ios->clock);
host->clock = ios->clock;
+
+ if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK &&
+ host->clock) {
+ host->timeout_clk = host->mmc->actual_clock ?
+ host->mmc->actual_clock / 1000 :
+ host->clock / 1000;
+ host->mmc->max_busy_timeout =
+ host->ops->get_max_timeout_count ?
+ host->ops->get_max_timeout_count(host) :
+ 1 << 27;
+ host->mmc->max_busy_timeout /= host->timeout_clk;
+ }
}
sdhci_set_power(host, ios->power_mode, ios->vdd);
@@ -1733,8 +1755,8 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
ret = regulator_set_voltage(mmc->supply.vqmmc, 2700000,
3600000);
if (ret) {
- pr_warning("%s: Switching to 3.3V signalling voltage "
- " failed\n", mmc_hostname(mmc));
+ pr_warn("%s: Switching to 3.3V signalling voltage failed\n",
+ mmc_hostname(mmc));
return -EIO;
}
}
@@ -1746,8 +1768,8 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
if (!(ctrl & SDHCI_CTRL_VDD_180))
return 0;
- pr_warning("%s: 3.3V regulator output did not became stable\n",
- mmc_hostname(mmc));
+ pr_warn("%s: 3.3V regulator output did not became stable\n",
+ mmc_hostname(mmc));
return -EAGAIN;
case MMC_SIGNAL_VOLTAGE_180:
@@ -1755,8 +1777,8 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
ret = regulator_set_voltage(mmc->supply.vqmmc,
1700000, 1950000);
if (ret) {
- pr_warning("%s: Switching to 1.8V signalling voltage "
- " failed\n", mmc_hostname(mmc));
+ pr_warn("%s: Switching to 1.8V signalling voltage failed\n",
+ mmc_hostname(mmc));
return -EIO;
}
}
@@ -1773,8 +1795,8 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
if (ctrl & SDHCI_CTRL_VDD_180)
return 0;
- pr_warning("%s: 1.8V regulator output did not became stable\n",
- mmc_hostname(mmc));
+ pr_warn("%s: 1.8V regulator output did not became stable\n",
+ mmc_hostname(mmc));
return -EAGAIN;
case MMC_SIGNAL_VOLTAGE_120:
@@ -1782,8 +1804,8 @@ static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
ret = regulator_set_voltage(mmc->supply.vqmmc, 1100000,
1300000);
if (ret) {
- pr_warning("%s: Switching to 1.2V signalling voltage "
- " failed\n", mmc_hostname(mmc));
+ pr_warn("%s: Switching to 1.2V signalling voltage failed\n",
+ mmc_hostname(mmc));
return -EIO;
}
}
@@ -2203,7 +2225,7 @@ static void sdhci_tuning_timer(unsigned long data)
* *
\*****************************************************************************/
-static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
+static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *mask)
{
BUG_ON(intmask == 0);
@@ -2241,11 +2263,18 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
if (host->cmd->data)
DBG("Cannot wait for busy signal when also "
"doing a data transfer");
- else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ))
+ else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ)
+ && !host->busy_handle) {
+ /* Mark that command complete before busy is ended */
+ host->busy_handle = 1;
return;
+ }
/* The controller does not support the end-of-busy IRQ,
* fall through and take the SDHCI_INT_RESPONSE */
+ } else if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) &&
+ host->cmd->opcode == MMC_STOP_TRANSMISSION && !host->data) {
+ *mask &= ~SDHCI_INT_DATA_END;
}
if (intmask & SDHCI_INT_RESPONSE)
@@ -2304,8 +2333,21 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
* above in sdhci_cmd_irq().
*/
if (host->cmd && (host->cmd->flags & MMC_RSP_BUSY)) {
+ if (intmask & SDHCI_INT_DATA_TIMEOUT) {
+ host->cmd->error = -ETIMEDOUT;
+ tasklet_schedule(&host->finish_tasklet);
+ return;
+ }
if (intmask & SDHCI_INT_DATA_END) {
- sdhci_finish_command(host);
+ /*
+ * Some cards handle busy-end interrupt
+ * before the command completed, so make
+ * sure we do things in the proper order.
+ */
+ if (host->busy_handle)
+ sdhci_finish_command(host);
+ else
+ host->busy_handle = 1;
return;
}
}
@@ -2442,7 +2484,8 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
}
if (intmask & SDHCI_INT_CMD_MASK)
- sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
+ sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK,
+ &intmask);
if (intmask & SDHCI_INT_DATA_MASK)
sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
@@ -2534,7 +2577,7 @@ void sdhci_enable_irq_wakeups(struct sdhci_host *host)
}
EXPORT_SYMBOL_GPL(sdhci_enable_irq_wakeups);
-void sdhci_disable_irq_wakeups(struct sdhci_host *host)
+static void sdhci_disable_irq_wakeups(struct sdhci_host *host)
{
u8 val;
u8 mask = SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE
@@ -2544,7 +2587,6 @@ void sdhci_disable_irq_wakeups(struct sdhci_host *host)
val &= ~mask;
sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL);
}
-EXPORT_SYMBOL_GPL(sdhci_disable_irq_wakeups);
int sdhci_suspend_host(struct sdhci_host *host)
{
@@ -2749,6 +2791,7 @@ int sdhci_add_host(struct sdhci_host *host)
u32 caps[2] = {0, 0};
u32 max_current_caps;
unsigned int ocr_avail;
+ unsigned int override_timeout_clk;
int ret;
WARN_ON(host == NULL);
@@ -2762,6 +2805,8 @@ int sdhci_add_host(struct sdhci_host *host)
if (debug_quirks2)
host->quirks2 = debug_quirks2;
+ override_timeout_clk = host->timeout_clk;
+
sdhci_do_reset(host, SDHCI_RESET_ALL);
host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
@@ -2807,8 +2852,7 @@ int sdhci_add_host(struct sdhci_host *host)
if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
if (host->ops->enable_dma) {
if (host->ops->enable_dma(host)) {
- pr_warning("%s: No suitable DMA "
- "available. Falling back to PIO.\n",
+ pr_warn("%s: No suitable DMA available - falling back to PIO\n",
mmc_hostname(mmc));
host->flags &=
~(SDHCI_USE_SDMA | SDHCI_USE_ADMA);
@@ -2830,15 +2874,14 @@ int sdhci_add_host(struct sdhci_host *host)
dma_free_coherent(mmc_dev(mmc), ADMA_SIZE,
host->adma_desc, host->adma_addr);
kfree(host->align_buffer);
- pr_warning("%s: Unable to allocate ADMA "
- "buffers. Falling back to standard DMA.\n",
+ pr_warn("%s: Unable to allocate ADMA buffers - falling back to standard DMA\n",
mmc_hostname(mmc));
host->flags &= ~SDHCI_USE_ADMA;
host->adma_desc = NULL;
host->align_buffer = NULL;
} else if (host->adma_addr & 3) {
- pr_warning("%s: unable to allocate aligned ADMA descriptor\n",
- mmc_hostname(mmc));
+ pr_warn("%s: unable to allocate aligned ADMA descriptor\n",
+ mmc_hostname(mmc));
host->flags &= ~SDHCI_USE_ADMA;
dma_free_coherent(mmc_dev(mmc), ADMA_SIZE,
host->adma_desc, host->adma_addr);
@@ -2908,25 +2951,30 @@ int sdhci_add_host(struct sdhci_host *host)
} else
mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200;
- host->timeout_clk =
- (caps[0] & SDHCI_TIMEOUT_CLK_MASK) >> SDHCI_TIMEOUT_CLK_SHIFT;
- if (host->timeout_clk == 0) {
- if (host->ops->get_timeout_clock) {
- host->timeout_clk = host->ops->get_timeout_clock(host);
- } else if (!(host->quirks &
- SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) {
- pr_err("%s: Hardware doesn't specify timeout clock "
- "frequency.\n", mmc_hostname(mmc));
- return -ENODEV;
+ if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) {
+ host->timeout_clk = (caps[0] & SDHCI_TIMEOUT_CLK_MASK) >>
+ SDHCI_TIMEOUT_CLK_SHIFT;
+ if (host->timeout_clk == 0) {
+ if (host->ops->get_timeout_clock) {
+ host->timeout_clk =
+ host->ops->get_timeout_clock(host);
+ } else {
+ pr_err("%s: Hardware doesn't specify timeout clock frequency.\n",
+ mmc_hostname(mmc));
+ return -ENODEV;
+ }
}
- }
- if (caps[0] & SDHCI_TIMEOUT_CLK_UNIT)
- host->timeout_clk *= 1000;
- if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)
- host->timeout_clk = mmc->f_max / 1000;
+ if (caps[0] & SDHCI_TIMEOUT_CLK_UNIT)
+ host->timeout_clk *= 1000;
- mmc->max_busy_timeout = (1 << 27) / host->timeout_clk;
+ mmc->max_busy_timeout = host->ops->get_max_timeout_count ?
+ host->ops->get_max_timeout_count(host) : 1 << 27;
+ mmc->max_busy_timeout /= host->timeout_clk;
+ }
+
+ if (override_timeout_clk)
+ host->timeout_clk = override_timeout_clk;
mmc->caps |= MMC_CAP_SDIO_IRQ | MMC_CAP_ERASE | MMC_CAP_CMD23;
mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
@@ -2998,8 +3046,13 @@ int sdhci_add_host(struct sdhci_host *host)
/* SD3.0: SDR104 is supported so (for eMMC) the caps2
* field can be promoted to support HS200.
*/
- if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200))
+ if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) {
mmc->caps2 |= MMC_CAP2_HS200;
+ if (IS_ERR(mmc->supply.vqmmc) ||
+ !regulator_is_supported_voltage
+ (mmc->supply.vqmmc, 1100000, 1300000))
+ mmc->caps2 &= ~MMC_CAP2_HS200_1_2V_SDR;
+ }
} else if (caps[1] & SDHCI_SUPPORT_SDR50)
mmc->caps |= MMC_CAP_UHS_SDR50;
@@ -3049,7 +3102,7 @@ int sdhci_add_host(struct sdhci_host *host)
*/
max_current_caps = sdhci_readl(host, SDHCI_MAX_CURRENT);
if (!max_current_caps && !IS_ERR(mmc->supply.vmmc)) {
- u32 curr = regulator_get_current_limit(mmc->supply.vmmc);
+ int curr = regulator_get_current_limit(mmc->supply.vmmc);
if (curr > 0) {
/* convert to SDHCI_MAX_CURRENT format */
@@ -3158,8 +3211,8 @@ int sdhci_add_host(struct sdhci_host *host)
mmc->max_blk_size = (caps[0] & SDHCI_MAX_BLOCK_MASK) >>
SDHCI_MAX_BLOCK_SHIFT;
if (mmc->max_blk_size >= 3) {
- pr_warning("%s: Invalid maximum block size, "
- "assuming 512 bytes\n", mmc_hostname(mmc));
+ pr_warn("%s: Invalid maximum block size, assuming 512 bytes\n",
+ mmc_hostname(mmc));
mmc->max_blk_size = 0;
}
}
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 4a5cd5e3fa3e..31896a779d4e 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -72,6 +72,7 @@
#define SDHCI_WRITE_PROTECT 0x00080000
#define SDHCI_DATA_LVL_MASK 0x00F00000
#define SDHCI_DATA_LVL_SHIFT 20
+#define SDHCI_DATA_0_LVL_MASK 0x00100000
#define SDHCI_HOST_CONTROL 0x28
#define SDHCI_CTRL_LED 0x01
@@ -281,6 +282,9 @@ struct sdhci_ops {
unsigned int (*get_max_clock)(struct sdhci_host *host);
unsigned int (*get_min_clock)(struct sdhci_host *host);
unsigned int (*get_timeout_clock)(struct sdhci_host *host);
+ unsigned int (*get_max_timeout_count)(struct sdhci_host *host);
+ void (*set_timeout)(struct sdhci_host *host,
+ struct mmc_command *cmd);
void (*set_bus_width)(struct sdhci_host *host, int width);
void (*platform_send_init_74_clocks)(struct sdhci_host *host,
u8 power_mode);
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index d11708c815d7..7d9d6a321521 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1553,7 +1553,6 @@ static struct platform_driver sh_mmcif_driver = {
.driver = {
.name = DRIVER_NAME,
.pm = &sh_mmcif_dev_pm_ops,
- .owner = THIS_MODULE,
.of_match_table = mmcif_of_match,
},
};
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 91058dabd11a..a2e81a1ea6af 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -39,6 +39,7 @@ struct sh_mobile_sdhi_of_data {
unsigned long tmio_flags;
unsigned long capabilities;
unsigned long capabilities2;
+ dma_addr_t dma_rx_offset;
};
static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = {
@@ -48,14 +49,16 @@ static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = {
};
static const struct sh_mobile_sdhi_of_data of_rcar_gen1_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
+ TMIO_MMC_CLK_ACTUAL,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
};
static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
+ TMIO_MMC_CLK_ACTUAL,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
- .capabilities2 = MMC_CAP2_NO_MULTI_READ,
+ .dma_rx_offset = 0x2000,
};
static const struct of_device_id sh_mobile_sdhi_of_match[] = {
@@ -68,6 +71,9 @@ static const struct of_device_id sh_mobile_sdhi_of_match[] = {
{ .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
{},
};
MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match);
@@ -132,6 +138,24 @@ static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
return 0;
}
+static int sh_mobile_sdhi_multi_io_quirk(struct mmc_card *card,
+ unsigned int direction, int blk_size)
+{
+ /*
+ * In Renesas controllers, when performing a
+ * multiple block read of one or two blocks,
+ * depending on the timing with which the
+ * response register is read, the response
+ * value may not be read properly.
+ * Use single block read for this HW bug
+ */
+ if ((direction == MMC_DATA_READ) &&
+ blk_size == 2)
+ return 1;
+
+ return blk_size;
+}
+
static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev)
{
mmc_detect_change(platform_get_drvdata(pdev), msecs_to_jiffies(100));
@@ -187,6 +211,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
mmc_data->clk_disable = sh_mobile_sdhi_clk_disable;
mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED;
mmc_data->write16_hook = sh_mobile_sdhi_write16_hook;
+ mmc_data->multi_io_quirk = sh_mobile_sdhi_multi_io_quirk;
if (p) {
mmc_data->flags = p->tmio_flags;
mmc_data->ocr_mask = p->tmio_ocr_mask;
@@ -223,11 +248,27 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
*/
mmc_data->flags |= TMIO_MMC_SDIO_IRQ;
+ /*
+ * All SDHI have CMD12 controll bit
+ */
+ mmc_data->flags |= TMIO_MMC_HAVE_CMD12_CTRL;
+
+ /*
+ * All SDHI need SDIO_INFO1 reserved bit
+ */
+ mmc_data->flags |= TMIO_MMC_SDIO_STATUS_QUIRK;
+
+ /*
+ * All SDHI have DMA control register
+ */
+ mmc_data->flags |= TMIO_MMC_HAVE_CTL_DMA_REG;
+
if (of_id && of_id->data) {
const struct sh_mobile_sdhi_of_data *of_data = of_id->data;
mmc_data->flags |= of_data->tmio_flags;
mmc_data->capabilities |= of_data->capabilities;
mmc_data->capabilities2 |= of_data->capabilities2;
+ dma_priv->dma_rx_offset = of_data->dma_rx_offset;
}
/* SD control register space size is 0x100, 0x200 for bus_shift=1 */
@@ -332,8 +373,9 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
}
static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(tmio_mmc_host_suspend, tmio_mmc_host_resume)
- SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ SET_PM_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
tmio_mmc_host_runtime_resume,
NULL)
};
@@ -341,7 +383,6 @@ static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
static struct platform_driver sh_mobile_sdhi_driver = {
.driver = {
.name = "sh_mobile_sdhi",
- .owner = THIS_MODULE,
.pm = &tmio_mmc_dev_pm_ops,
.of_match_table = sh_mobile_sdhi_of_match,
},
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 024f67c98cdc..d1663b3c4143 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -990,7 +990,8 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
/* 400kHz ~ 50MHz */
mmc->f_min = 400000;
mmc->f_max = 50000000;
- mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
+ mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
+ MMC_CAP_ERASE;
ret = mmc_of_parse(mmc);
if (ret)
@@ -1035,7 +1036,6 @@ static int sunxi_mmc_remove(struct platform_device *pdev)
static struct platform_driver sunxi_mmc_driver = {
.driver = {
.name = "sunxi-mmc",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(sunxi_mmc_of_match),
},
.probe = sunxi_mmc_probe,
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index d1760ebcac03..93c4b40df90a 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -952,8 +952,8 @@ static int tifm_sd_probe(struct tifm_dev *sock)
if (!(TIFM_SOCK_STATE_OCCUPIED
& readl(sock->addr + SOCK_PRESENT_STATE))) {
- pr_warning("%s : card gone, unexpectedly\n",
- dev_name(&sock->dev));
+ pr_warn("%s : card gone, unexpectedly\n",
+ dev_name(&sock->dev));
return rc;
}
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index cfad844730d8..659028ddb8b1 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -30,7 +30,7 @@ static int tmio_mmc_suspend(struct device *dev)
const struct mfd_cell *cell = mfd_get_cell(pdev);
int ret;
- ret = tmio_mmc_host_suspend(dev);
+ ret = pm_runtime_force_suspend(dev);
/* Tell MFD core it can disable us now.*/
if (!ret && cell->disable)
@@ -50,7 +50,7 @@ static int tmio_mmc_resume(struct device *dev)
ret = cell->resume(pdev);
if (!ret)
- ret = tmio_mmc_host_resume(dev);
+ ret = pm_runtime_force_resume(dev);
return ret;
}
@@ -135,6 +135,9 @@ static int tmio_mmc_remove(struct platform_device *pdev)
static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(tmio_mmc_suspend, tmio_mmc_resume)
+ SET_PM_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
+ tmio_mmc_host_runtime_resume,
+ NULL)
};
static struct platform_driver tmio_mmc_driver = {
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 100ffe0b2faf..a34ecbe1c1ad 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -40,22 +40,6 @@
struct tmio_mmc_data;
-/*
- * We differentiate between the following 3 power states:
- * 1. card slot powered off, controller stopped. This is used, when either there
- * is no card in the slot, or the card really has to be powered down.
- * 2. card slot powered on, controller stopped. This is used, when a card is in
- * the slot, but no activity is currently taking place. This is a power-
- * saving mode with card-state preserved. This state can be entered, e.g.
- * when MMC clock-gating is used.
- * 3. card slot powered on, controller running. This is the actual active state.
- */
-enum tmio_mmc_power {
- TMIO_MMC_OFF_STOP, /* card power off, controller stopped */
- TMIO_MMC_ON_STOP, /* card power on, controller stopped */
- TMIO_MMC_ON_RUN, /* card power on, controller running */
-};
-
struct tmio_mmc_host {
void __iomem *ctl;
struct mmc_command *cmd;
@@ -63,9 +47,6 @@ struct tmio_mmc_host {
struct mmc_data *data;
struct mmc_host *mmc;
- /* Controller and card power state */
- enum tmio_mmc_power 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);
@@ -92,15 +73,16 @@ struct tmio_mmc_host {
struct delayed_work delayed_reset_work;
struct work_struct done;
- /* Cache IRQ mask */
+ /* Cache */
u32 sdcard_irq_mask;
u32 sdio_irq_mask;
+ unsigned int clk_cache;
spinlock_t lock; /* protect host private data */
unsigned long last_req_ts;
struct mutex ios_lock; /* protect set_ios() context */
bool native_hotplug;
- bool resuming;
+ bool sdio_irq_enabled;
};
int tmio_mmc_host_probe(struct tmio_mmc_host **host,
@@ -162,12 +144,7 @@ static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
}
#endif
-#ifdef CONFIG_PM_SLEEP
-int tmio_mmc_host_suspend(struct device *dev);
-int tmio_mmc_host_resume(struct device *dev);
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
int tmio_mmc_host_runtime_suspend(struct device *dev);
int tmio_mmc_host_runtime_resume(struct device *dev);
#endif
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index eb8f1d5c34b1..7d077388b9eb 100644
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -28,10 +28,8 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
if (!host->chan_tx || !host->chan_rx)
return;
-#if defined(CONFIG_SUPERH) || defined(CONFIG_ARCH_SHMOBILE)
- /* Switch DMA mode on or off - SuperH specific? */
- sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
-#endif
+ if (host->pdata->flags & TMIO_MMC_HAVE_CTL_DMA_REG)
+ sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
}
void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
@@ -312,7 +310,7 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
if (pdata->dma->chan_priv_rx)
cfg.slave_id = pdata->dma->slave_id_rx;
cfg.direction = DMA_DEV_TO_MEM;
- cfg.src_addr = cfg.dst_addr;
+ cfg.src_addr = cfg.dst_addr + pdata->dma->dma_rx_offset;
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
cfg.dst_addr = 0;
ret = dmaengine_slave_config(host->chan_rx, &cfg);
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index faf0924e71cb..250bf8c9f998 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -44,6 +44,7 @@
#include <linux/pm_qos.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
+#include <linux/mmc/sdio.h>
#include <linux/scatterlist.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
@@ -129,19 +130,28 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
{
struct tmio_mmc_host *host = mmc_priv(mmc);
- if (enable) {
+ if (enable && !host->sdio_irq_enabled) {
+ /* Keep device active while SDIO irq is enabled */
+ pm_runtime_get_sync(mmc_dev(mmc));
+ host->sdio_irq_enabled = true;
+
host->sdio_irq_mask = TMIO_SDIO_MASK_ALL &
~TMIO_SDIO_STAT_IOIRQ;
sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001);
sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
- } else {
+ } else if (!enable && host->sdio_irq_enabled) {
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 = false;
+ pm_runtime_mark_last_busy(mmc_dev(mmc));
+ pm_runtime_put_autosuspend(mmc_dev(mmc));
}
}
-static void tmio_mmc_set_clock(struct tmio_mmc_host *host, int new_clock)
+static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
+ unsigned int new_clock)
{
u32 clk = 0, clock;
@@ -149,7 +159,11 @@ static void tmio_mmc_set_clock(struct tmio_mmc_host *host, int new_clock)
for (clock = host->mmc->f_min, clk = 0x80000080;
new_clock >= (clock<<1); clk >>= 1)
clock <<= 1;
- clk |= 0x100;
+
+ /* 1/1 clock is option */
+ if ((host->pdata->flags & TMIO_MMC_CLK_ACTUAL) &&
+ ((clk >> 22) & 0x1))
+ clk |= 0xff;
}
if (host->set_clk_div)
@@ -245,6 +259,9 @@ static void tmio_mmc_reset_work(struct work_struct *work)
tmio_mmc_abort_dma(host);
mmc_request_done(host->mmc, mrq);
+
+ pm_runtime_mark_last_busy(mmc_dev(host->mmc));
+ pm_runtime_put_autosuspend(mmc_dev(host->mmc));
}
/* called with host->lock held, interrupts disabled */
@@ -274,6 +291,9 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
tmio_mmc_abort_dma(host);
mmc_request_done(host->mmc, mrq);
+
+ pm_runtime_mark_last_busy(mmc_dev(host->mmc));
+ pm_runtime_put_autosuspend(mmc_dev(host->mmc));
}
static void tmio_mmc_done_work(struct work_struct *work)
@@ -295,6 +315,7 @@ static void tmio_mmc_done_work(struct work_struct *work)
#define TRANSFER_READ 0x1000
#define TRANSFER_MULTI 0x2000
#define SECURITY_CMD 0x4000
+#define NO_CMD12_ISSUE 0x4000 /* TMIO_MMC_HAVE_CMD12_CTRL */
static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command *cmd)
{
@@ -331,6 +352,14 @@ static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command
if (data->blocks > 1) {
sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0x100);
c |= TRANSFER_MULTI;
+
+ /*
+ * Disable auto CMD12 at IO_RW_EXTENDED when
+ * multiple block transfer
+ */
+ if ((host->pdata->flags & TMIO_MMC_HAVE_CMD12_CTRL) &&
+ (cmd->opcode == SD_IO_RW_EXTENDED))
+ c |= NO_CMD12_ISSUE;
}
if (data->flags & MMC_DATA_READ)
c |= TRANSFER_READ;
@@ -347,6 +376,40 @@ static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command
return 0;
}
+static void tmio_mmc_transfer_data(struct tmio_mmc_host *host,
+ unsigned short *buf,
+ unsigned int count)
+{
+ int is_read = host->data->flags & MMC_DATA_READ;
+ u8 *buf8;
+
+ /*
+ * Transfer the data
+ */
+ if (is_read)
+ sd_ctrl_read16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
+ else
+ sd_ctrl_write16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
+
+ /* if count was even number */
+ if (!(count & 0x1))
+ return;
+
+ /* if count was odd number */
+ buf8 = (u8 *)(buf + (count >> 1));
+
+ /*
+ * FIXME
+ *
+ * driver and this function are assuming that
+ * it is used as little endian
+ */
+ if (is_read)
+ *buf8 = sd_ctrl_read16(host, CTL_SD_DATA_PORT) & 0xff;
+ else
+ sd_ctrl_write16(host, CTL_SD_DATA_PORT, *buf8);
+}
+
/*
* This chip always returns (at least?) as much data as you ask for.
* I'm unsure what happens if you ask for less than a block. This should be
@@ -379,10 +442,7 @@ static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
count, host->sg_off, data->flags);
/* Transfer the data */
- if (data->flags & MMC_DATA_READ)
- sd_ctrl_read16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
- else
- sd_ctrl_write16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
+ tmio_mmc_transfer_data(host, buf, count);
host->sg_off += count;
@@ -465,6 +525,9 @@ static void tmio_mmc_data_irq(struct tmio_mmc_host *host)
goto out;
if (host->chan_tx && (data->flags & MMC_DATA_WRITE) && !host->force_pio) {
+ u32 status = sd_ctrl_read32(host, CTL_STATUS);
+ bool done = false;
+
/*
* Has all data been written out yet? Testing on SuperH showed,
* that in most cases the first interrupt comes already with the
@@ -473,7 +536,15 @@ static void tmio_mmc_data_irq(struct tmio_mmc_host *host)
* DATAEND interrupt with the BUSY bit set, in this cases
* waiting for one more interrupt fixes the problem.
*/
- if (!(sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_CMD_BUSY)) {
+ if (host->pdata->flags & TMIO_MMC_HAS_IDLE_WAIT) {
+ if (status & TMIO_STAT_ILL_FUNC)
+ done = true;
+ } else {
+ if (!(status & TMIO_STAT_CMD_BUSY))
+ done = true;
+ }
+
+ if (done) {
tmio_mmc_disable_mmc_irqs(host, TMIO_STAT_DATAEND);
tasklet_schedule(&host->dma_complete);
}
@@ -557,6 +628,9 @@ static void tmio_mmc_card_irq_status(struct tmio_mmc_host *host,
pr_debug_status(*status);
pr_debug_status(*ireg);
+
+ /* Clear the status except the interrupt status */
+ sd_ctrl_write32(host, CTL_STATUS, TMIO_MASK_IRQ);
}
static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
@@ -637,6 +711,7 @@ irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid)
struct mmc_host *mmc = host->mmc;
struct tmio_mmc_data *pdata = host->pdata;
unsigned int ireg, status;
+ unsigned int sdio_status;
if (!(pdata->flags & TMIO_MMC_SDIO_IRQ))
return IRQ_HANDLED;
@@ -644,7 +719,11 @@ irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid)
status = sd_ctrl_read16(host, CTL_SDIO_STATUS);
ireg = status & TMIO_SDIO_MASK_ALL & ~host->sdcard_irq_mask;
- sd_ctrl_write16(host, CTL_SDIO_STATUS, status & ~TMIO_SDIO_MASK_ALL);
+ sdio_status = status & ~TMIO_SDIO_MASK_ALL;
+ if (pdata->flags & TMIO_MMC_SDIO_STATUS_QUIRK)
+ sdio_status |= 6;
+
+ sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status);
if (mmc->caps & MMC_CAP_SDIO_IRQ && ireg & TMIO_SDIO_STAT_IOIRQ)
mmc_signal_sdio_irq(mmc);
@@ -728,6 +807,8 @@ static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
spin_unlock_irqrestore(&host->lock, flags);
+ pm_runtime_get_sync(mmc_dev(mmc));
+
if (mrq->data) {
ret = tmio_mmc_start_data(host, mrq->data);
if (ret)
@@ -746,11 +827,14 @@ fail:
host->mrq = NULL;
mrq->cmd->error = ret;
mmc_request_done(mmc, mrq);
+
+ pm_runtime_mark_last_busy(mmc_dev(mmc));
+ pm_runtime_put_autosuspend(mmc_dev(mmc));
}
-static int tmio_mmc_clk_update(struct mmc_host *mmc)
+static int tmio_mmc_clk_update(struct tmio_mmc_host *host)
{
- struct tmio_mmc_host *host = mmc_priv(mmc);
+ struct mmc_host *mmc = host->mmc;
struct tmio_mmc_data *pdata = host->pdata;
int ret;
@@ -812,6 +896,19 @@ static void tmio_mmc_power_off(struct tmio_mmc_host *host)
host->set_pwr(host->pdev, 0);
}
+static void tmio_mmc_set_bus_width(struct tmio_mmc_host *host,
+ unsigned char bus_width)
+{
+ switch (bus_width) {
+ case MMC_BUS_WIDTH_1:
+ sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x80e0);
+ break;
+ case MMC_BUS_WIDTH_4:
+ sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x00e0);
+ break;
+ }
+}
+
/* Set MMC clock / power.
* Note: This controller uses a simple divider scheme therefore it cannot
* run a MMC card at full speed (20MHz). The max clock is 24MHz on SD, but as
@@ -824,6 +921,8 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct device *dev = &host->pdev->dev;
unsigned long flags;
+ pm_runtime_get_sync(mmc_dev(mmc));
+
mutex_lock(&host->ios_lock);
spin_lock_irqsave(&host->lock, flags);
@@ -850,60 +949,22 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
spin_unlock_irqrestore(&host->lock, flags);
- /*
- * 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 (host->power != TMIO_MMC_ON_RUN) {
- tmio_mmc_clk_update(mmc);
- pm_runtime_get_sync(dev);
- if (host->resuming) {
- tmio_mmc_reset(host);
- host->resuming = false;
- }
- }
- if (host->power == TMIO_MMC_OFF_STOP)
- tmio_mmc_reset(host);
+ switch (ios->power_mode) {
+ case MMC_POWER_OFF:
+ tmio_mmc_power_off(host);
+ tmio_mmc_clk_stop(host);
+ break;
+ case MMC_POWER_UP:
tmio_mmc_set_clock(host, ios->clock);
- if (host->power == TMIO_MMC_OFF_STOP)
- /* power up SD card and the bus */
- tmio_mmc_power_on(host, ios->vdd);
- host->power = TMIO_MMC_ON_RUN;
- /* start bus clock */
+ tmio_mmc_power_on(host, ios->vdd);
tmio_mmc_clk_start(host);
- } else if (ios->power_mode != MMC_POWER_UP) {
- struct tmio_mmc_data *pdata = host->pdata;
- unsigned int old_power = host->power;
-
- if (old_power != TMIO_MMC_OFF_STOP) {
- if (ios->power_mode == MMC_POWER_OFF) {
- tmio_mmc_power_off(host);
- host->power = TMIO_MMC_OFF_STOP;
- } else {
- host->power = TMIO_MMC_ON_STOP;
- }
- }
-
- if (old_power == TMIO_MMC_ON_RUN) {
- tmio_mmc_clk_stop(host);
- pm_runtime_put(dev);
- if (pdata->clk_disable)
- pdata->clk_disable(host->pdev);
- }
- }
-
- if (host->power != TMIO_MMC_OFF_STOP) {
- switch (ios->bus_width) {
- case MMC_BUS_WIDTH_1:
- sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x80e0);
+ tmio_mmc_set_bus_width(host, ios->bus_width);
break;
- case MMC_BUS_WIDTH_4:
- sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, 0x00e0);
+ case MMC_POWER_ON:
+ tmio_mmc_set_clock(host, ios->clock);
+ tmio_mmc_clk_start(host);
+ tmio_mmc_set_bus_width(host, ios->bus_width);
break;
- }
}
/* Let things settle. delay taken from winCE driver */
@@ -915,7 +976,12 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
ios->clock, ios->power_mode);
host->mrq = NULL;
+ host->clk_cache = ios->clock;
+
mutex_unlock(&host->ios_lock);
+
+ pm_runtime_mark_last_busy(mmc_dev(mmc));
+ pm_runtime_put_autosuspend(mmc_dev(mmc));
}
static int tmio_mmc_get_ro(struct mmc_host *mmc)
@@ -926,8 +992,25 @@ static int tmio_mmc_get_ro(struct mmc_host *mmc)
if (ret >= 0)
return ret;
- return !((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
- (sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
+ pm_runtime_get_sync(mmc_dev(mmc));
+ ret = !((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
+ (sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
+ pm_runtime_mark_last_busy(mmc_dev(mmc));
+ pm_runtime_put_autosuspend(mmc_dev(mmc));
+
+ return ret;
+}
+
+static int tmio_multi_io_quirk(struct mmc_card *card,
+ unsigned int direction, int blk_size)
+{
+ struct tmio_mmc_host *host = mmc_priv(card->host);
+ struct tmio_mmc_data *pdata = host->pdata;
+
+ if (pdata->multi_io_quirk)
+ return pdata->multi_io_quirk(card, direction, blk_size);
+
+ return blk_size;
}
static const struct mmc_host_ops tmio_mmc_ops = {
@@ -936,6 +1019,7 @@ static const struct mmc_host_ops tmio_mmc_ops = {
.get_ro = tmio_mmc_get_ro,
.get_cd = mmc_gpio_get_cd,
.enable_sdio_irq = tmio_mmc_enable_sdio_irq,
+ .multi_io_quirk = tmio_multi_io_quirk,
};
static int tmio_mmc_init_ocr(struct tmio_mmc_host *host)
@@ -1032,28 +1116,23 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
mmc->caps & MMC_CAP_NONREMOVABLE ||
mmc->slot.cd_irq >= 0);
- _host->power = TMIO_MMC_OFF_STOP;
- pm_runtime_enable(&pdev->dev);
- ret = pm_runtime_resume(&pdev->dev);
- if (ret < 0)
- goto pm_disable;
-
- if (tmio_mmc_clk_update(mmc) < 0) {
+ if (tmio_mmc_clk_update(_host) < 0) {
mmc->f_max = pdata->hclk;
mmc->f_min = mmc->f_max / 512;
}
/*
- * There are 4 different scenarios for the card detection:
- * 1) an external gpio irq handles the cd (best for power savings)
- * 2) internal sdhi irq handles the cd
- * 3) a worker thread polls the sdhi - indicated by MMC_CAP_NEEDS_POLL
- * 4) the medium is non-removable - indicated by MMC_CAP_NONREMOVABLE
- *
- * While we increment the 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
- * powered on during runtime for the card detection to work.
+ * Check the sanity of mmc->f_min to prevent tmio_mmc_set_clock() from
+ * looping forever...
+ */
+ if (mmc->f_min == 0) {
+ ret = -EINVAL;
+ goto host_free;
+ }
+
+ /*
+ * While using internal tmio hardware logic for card detection, we need
+ * to ensure it stays powered for it to work.
*/
if (_host->native_hotplug)
pm_runtime_get_noresume(&pdev->dev);
@@ -1074,8 +1153,12 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
_host->sdcard_irq_mask &= ~irq_mask;
- if (pdata->flags & TMIO_MMC_SDIO_IRQ)
- tmio_mmc_enable_sdio_irq(mmc, 0);
+ _host->sdio_irq_enabled = false;
+ if (pdata->flags & TMIO_MMC_SDIO_IRQ) {
+ _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);
+ }
spin_lock_init(&_host->lock);
mutex_init(&_host->ios_lock);
@@ -1087,9 +1170,12 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
/* See if we also get DMA */
tmio_mmc_request_dma(_host, pdata);
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
+ pm_runtime_use_autosuspend(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+
ret = mmc_add_host(mmc);
- if (pdata->clk_disable)
- pdata->clk_disable(pdev);
if (ret < 0) {
tmio_mmc_host_remove(_host);
return ret;
@@ -1103,15 +1189,13 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
tmio_mmc_host_remove(_host);
return ret;
}
+ mmc_gpiod_request_cd_irq(mmc);
}
*host = _host;
return 0;
-pm_disable:
- pm_runtime_disable(&pdev->dev);
- iounmap(_host->ctl);
host_free:
mmc_free_host(mmc);
@@ -1142,34 +1226,20 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
}
EXPORT_SYMBOL(tmio_mmc_host_remove);
-#ifdef CONFIG_PM_SLEEP
-int tmio_mmc_host_suspend(struct device *dev)
+#ifdef CONFIG_PM
+int tmio_mmc_host_runtime_suspend(struct device *dev)
{
struct mmc_host *mmc = dev_get_drvdata(dev);
struct tmio_mmc_host *host = mmc_priv(mmc);
tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL);
- return 0;
-}
-EXPORT_SYMBOL(tmio_mmc_host_suspend);
-
-int tmio_mmc_host_resume(struct device *dev)
-{
- struct mmc_host *mmc = dev_get_drvdata(dev);
- struct tmio_mmc_host *host = mmc_priv(mmc);
- tmio_mmc_enable_dma(host, true);
+ if (host->clk_cache)
+ tmio_mmc_clk_stop(host);
- /* The MMC core will perform the complete set up */
- host->resuming = true;
- return 0;
-}
-EXPORT_SYMBOL(tmio_mmc_host_resume);
-#endif
+ if (host->pdata->clk_disable)
+ host->pdata->clk_disable(host->pdev);
-#ifdef CONFIG_PM_RUNTIME
-int tmio_mmc_host_runtime_suspend(struct device *dev)
-{
return 0;
}
EXPORT_SYMBOL(tmio_mmc_host_runtime_suspend);
@@ -1179,6 +1249,14 @@ int tmio_mmc_host_runtime_resume(struct device *dev)
struct mmc_host *mmc = dev_get_drvdata(dev);
struct tmio_mmc_host *host = mmc_priv(mmc);
+ tmio_mmc_reset(host);
+ tmio_mmc_clk_update(host);
+
+ if (host->clk_cache) {
+ tmio_mmc_set_clock(host, host->clk_cache);
+ tmio_mmc_clk_start(host);
+ }
+
tmio_mmc_enable_dma(host, true);
return 0;
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 1defd5ed3236..9a6dfb0c4ecc 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -803,8 +803,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
default:
#ifdef CONFIG_MMC_DEBUG
- pr_warning("%s: Data command %d is not "
- "supported by this controller.\n",
+ pr_warn("%s: Data command %d is not supported by this controller\n",
mmc_hostname(host->mmc), cmd->opcode);
#endif
cmd->error = -EINVAL;
@@ -1429,8 +1428,8 @@ free:
free_dma(dma);
err:
- pr_warning(DRIVER_NAME ": Unable to allocate DMA %d. "
- "Falling back on FIFO.\n", dma);
+ pr_warn(DRIVER_NAME ": Unable to allocate DMA %d - falling back on FIFO\n",
+ dma);
}
static void wbsd_release_dma(struct wbsd_host *host)
@@ -1664,9 +1663,7 @@ static int wbsd_init(struct device *dev, int base, int irq, int dma,
ret = wbsd_scan(host);
if (ret) {
if (pnp && (ret == -ENODEV)) {
- pr_warning(DRIVER_NAME
- ": Unable to confirm device presence. You may "
- "experience lock-ups.\n");
+ pr_warn(DRIVER_NAME ": Unable to confirm device presence - you may experience lock-ups\n");
} else {
wbsd_free_mmc(dev);
return ret;
@@ -1688,10 +1685,7 @@ static int wbsd_init(struct device *dev, int base, int irq, int dma,
*/
if (pnp) {
if ((host->config != 0) && !wbsd_chip_validate(host)) {
- pr_warning(DRIVER_NAME
- ": PnP active but chip not configured! "
- "You probably have a buggy BIOS. "
- "Configuring chip manually.\n");
+ pr_warn(DRIVER_NAME ": PnP active but chip not configured! You probably have a buggy BIOS. Configuring chip manually.\n");
wbsd_chip_config(host);
}
} else
@@ -1884,10 +1878,7 @@ static int wbsd_pnp_resume(struct pnp_dev *pnp_dev)
*/
if (host->config != 0) {
if (!wbsd_chip_validate(host)) {
- pr_warning(DRIVER_NAME
- ": PnP active but chip not configured! "
- "You probably have a buggy BIOS. "
- "Configuring chip manually.\n");
+ pr_warn(DRIVER_NAME ": PnP active but chip not configured! You probably have a buggy BIOS. Configuring chip manually.\n");
wbsd_chip_config(host);
}
}