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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-04 13:45:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-04 13:45:17 -0700
commit173192958d06b8d1eb44f56d74373052ad6a9a60 (patch)
tree838a4f063c994d4d0a6259a85f21005c4098b752 /drivers/mmc/host
parente72a5d1ceb1c5cbe39c35c1c7a7f5909cbe8451a (diff)
parente4404fab2e0b70287a471a1e760c9338ce683fde (diff)
downloadvexpress-lsk-173192958d06b8d1eb44f56d74373052ad6a9a60.tar.gz
Merge tag 'mmc-updates-for-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC update from Chris Ball: "MMC highlights for 3.10: Core: - Introduce MMC_CAP2_NO_PRESCAN_POWERUP to allow skipping mmc_power_up() at boot/initialization time if it's already happened, for performance (faster boot time) reasons. - Fix a bit width test failure that resulted in old eMMC cards being put into 1-bit mode when 4-bit mode was available. - Expose fwrev/hwrev for MMCv4 parts. - Improve card removal logic in the case where the card's removed slowly; we were missing card removal events if the card retained contact with the slot pads for long enough to reply to a CMD13 while being removed. Drivers: - davinci_mmc: Support using PIO instead of DMA. - dw_mmc: Add support for Exynos4412. - mxcmmc: DT support, use slot-gpio API. - mxs-mmc: Add broken-cd/cd-inverted/non-removable DT property support. - sdhci-sirf: New sdhci-pltfm driver for CSR SiRF SoCs: SiRFprimaII: unicore ARM Cortex-A9 SiRFatlas6: unicore ARM Cortex-A9 SiRFmarco: dual core ARM Cortex-A9 SMP - sdhci-tegra: Add support for Tegra114 platforms, use mmc_of_parse()" * tag 'mmc-updates-for-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (66 commits) mmc: sdhci-tegra: fix MODULE_DEVICE_TABLE mmc: core: fix init controller performance regression, updated patch mmc: mxcmmc: enable DMA support on mpc512x mmc: mxcmmc: constify mxcmci_devtype mmc: mxcmmc: use slot-gpio API for write-protect detection mmc: mxcmmc: add mpc512x SDHC support mmc: mxcmmc: fix race conditions for host->req and host->data access mmc: mxcmmc: DT support mmc: dw_mmc: let device core setup the default pin configuration mmc: mxs-mmc: add broken-cd property mmc: mxs-mmc: add non-removable property mmc: mxs-mmc: add cd-inverted property mmc: core: call pm_runtime_put_noidle in pm_runtime_get_sync failed case mmc: mxcmmc: Fix bug when card is present during boot mmc: core: fix performance regression initializing MMC host controllers Revert "mmc: core: wait while adding MMC host to ensure root mounts successfully" mmc: atmel-mci: pio hang on block errors mmc: core: Fix bit width test failing on old eMMC cards mmc: dw_mmc: Use pr_info instead of printk mmc: dw_mmc: Check return value of regulator_enable ...
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r--drivers/mmc/host/Kconfig31
-rw-r--r--drivers/mmc/host/Makefile1
-rw-r--r--drivers/mmc/host/android-goldfish.c2
-rw-r--r--drivers/mmc/host/atmel-mci.c16
-rw-r--r--drivers/mmc/host/davinci_mmc.c23
-rw-r--r--drivers/mmc/host/dw_mmc-exynos.c54
-rw-r--r--drivers/mmc/host/dw_mmc.c153
-rw-r--r--drivers/mmc/host/dw_mmc.h3
-rw-r--r--drivers/mmc/host/mvsdio.c54
-rw-r--r--drivers/mmc/host/mxcmmc.c296
-rw-r--r--drivers/mmc/host/mxs-mmc.c15
-rw-r--r--drivers/mmc/host/omap_hsmmc.c14
-rw-r--r--drivers/mmc/host/rtsx_pci_sdmmc.c10
-rw-r--r--drivers/mmc/host/sdhci-acpi.c2
-rw-r--r--drivers/mmc/host/sdhci-bcm2835.c4
-rw-r--r--drivers/mmc/host/sdhci-cns3xxx.c4
-rw-r--r--drivers/mmc/host/sdhci-dove.c4
-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c4
-rw-r--r--drivers/mmc/host/sdhci-of-esdhc.c4
-rw-r--r--drivers/mmc/host/sdhci-of-hlwd.c4
-rw-r--r--drivers/mmc/host/sdhci-pci.c4
-rw-r--r--drivers/mmc/host/sdhci-pltfm.c7
-rw-r--r--drivers/mmc/host/sdhci-pltfm.h6
-rw-r--r--drivers/mmc/host/sdhci-pxav2.c2
-rw-r--r--drivers/mmc/host/sdhci-pxav3.c49
-rw-r--r--drivers/mmc/host/sdhci-s3c.c88
-rw-r--r--drivers/mmc/host/sdhci-sirf.c193
-rw-r--r--drivers/mmc/host/sdhci-spear.c4
-rw-r--r--drivers/mmc/host/sdhci-tegra.c124
-rw-r--r--drivers/mmc/host/sdhci.c39
-rw-r--r--drivers/mmc/host/wmt-sdmmc.c4
31 files changed, 716 insertions, 502 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index d88219e1d86..9ab8f8dee94 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -190,6 +190,17 @@ config MMC_SDHCI_S3C
If unsure, say N.
+config MMC_SDHCI_SIRF
+ tristate "SDHCI support on CSR SiRFprimaII and SiRFmarco SoCs"
+ depends on ARCH_SIRF
+ depends on MMC_SDHCI_PLTFM
+ help
+ This selects the SDHCI support for SiRF System-on-Chip devices.
+
+ If you have a controller with this interface, say Y or M here.
+
+ If unsure, say N.
+
config MMC_SDHCI_PXAV3
tristate "Marvell MMP2 SD Host Controller support (PXAV3)"
depends on CLKDEV_LOOKUP
@@ -300,16 +311,6 @@ config MMC_ATMELMCI
If unsure, say N.
-config MMC_ATMELMCI_DMA
- bool "Atmel MCI DMA support"
- depends on MMC_ATMELMCI && (AVR32 || ARCH_AT91SAM9G45) && DMA_ENGINE
- help
- Say Y here to have the Atmel MCI driver use a DMA engine to
- do data transfers and thus increase the throughput and
- reduce the CPU utilization.
-
- If unsure, say N.
-
config MMC_MSM
tristate "Qualcomm SDCC Controller Support"
depends on MMC && ARCH_MSM
@@ -319,12 +320,12 @@ config MMC_MSM
support for SDIO devices.
config MMC_MXC
- tristate "Freescale i.MX21/27/31 Multimedia Card Interface support"
- depends on ARCH_MXC
+ tristate "Freescale i.MX21/27/31 or MPC512x Multimedia Card support"
+ depends on ARCH_MXC || PPC_MPC512x
help
- This selects the Freescale i.MX21, i.MX27 and i.MX31 Multimedia card
- Interface. If you have a i.MX platform with a Multimedia Card slot,
- say Y or M here.
+ This selects the Freescale i.MX21, i.MX27, i.MX31 or MPC512x
+ Multimedia Card Interface. If you have an i.MX or MPC512x platform
+ with a Multimedia Card slot, say Y or M here.
If unsure, say N.
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index c380e3cf0a3..cd322807555 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_MMC_SDHCI_ACPI) += sdhci-acpi.o
obj-$(CONFIG_MMC_SDHCI_PXAV3) += sdhci-pxav3.o
obj-$(CONFIG_MMC_SDHCI_PXAV2) += sdhci-pxav2.o
obj-$(CONFIG_MMC_SDHCI_S3C) += sdhci-s3c.o
+obj-$(CONFIG_MMC_SDHCI_SIRF) += sdhci-sirf.o
obj-$(CONFIG_MMC_SDHCI_SPEAR) += sdhci-spear.o
obj-$(CONFIG_MMC_WBSD) += wbsd.o
obj-$(CONFIG_MMC_AU1X) += au1xmmc.o
diff --git a/drivers/mmc/host/android-goldfish.c b/drivers/mmc/host/android-goldfish.c
index ef3aef0f376..7780c14704c 100644
--- a/drivers/mmc/host/android-goldfish.c
+++ b/drivers/mmc/host/android-goldfish.c
@@ -476,7 +476,7 @@ static int goldfish_mmc_probe(struct platform_device *pdev)
host->mmc = mmc;
pr_err("mmc: Mapping %lX to %lX\n", (long)res->start, (long)res->end);
- host->reg_base = ioremap(res->start, res->end - res->start + 1);
+ host->reg_base = ioremap(res->start, resource_size(res));
if (host->reg_base == NULL) {
ret = -ENOMEM;
goto ioremap_failed;
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 722af1de796..e75774f7260 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -178,6 +178,7 @@ struct atmel_mci {
void __iomem *regs;
struct scatterlist *sg;
+ unsigned int sg_len;
unsigned int pio_offset;
unsigned int *buffer;
unsigned int buf_size;
@@ -892,6 +893,7 @@ static u32 atmci_prepare_data(struct atmel_mci *host, struct mmc_data *data)
data->error = -EINPROGRESS;
host->sg = data->sg;
+ host->sg_len = data->sg_len;
host->data = data;
host->data_chan = NULL;
@@ -1826,7 +1828,8 @@ static void atmci_read_data_pio(struct atmel_mci *host)
if (offset == sg->length) {
flush_dcache_page(sg_page(sg));
host->sg = sg = sg_next(sg);
- if (!sg)
+ host->sg_len--;
+ if (!sg || !host->sg_len)
goto done;
offset = 0;
@@ -1839,7 +1842,8 @@ static void atmci_read_data_pio(struct atmel_mci *host)
flush_dcache_page(sg_page(sg));
host->sg = sg = sg_next(sg);
- if (!sg)
+ host->sg_len--;
+ if (!sg || !host->sg_len)
goto done;
offset = 4 - remaining;
@@ -1890,7 +1894,8 @@ static void atmci_write_data_pio(struct atmel_mci *host)
nbytes += 4;
if (offset == sg->length) {
host->sg = sg = sg_next(sg);
- if (!sg)
+ host->sg_len--;
+ if (!sg || !host->sg_len)
goto done;
offset = 0;
@@ -1904,7 +1909,8 @@ static void atmci_write_data_pio(struct atmel_mci *host)
nbytes += remaining;
host->sg = sg = sg_next(sg);
- if (!sg) {
+ host->sg_len--;
+ if (!sg || !host->sg_len) {
atmci_writel(host, ATMCI_TDR, value);
goto done;
}
@@ -2487,10 +2493,8 @@ static int __exit atmci_remove(struct platform_device *pdev)
atmci_readl(host, ATMCI_SR);
clk_disable(host->mck);
-#ifdef CONFIG_MMC_ATMELMCI_DMA
if (host->dma.chan)
dma_release_channel(host->dma.chan);
-#endif
free_irq(platform_get_irq(pdev, 0), host);
iounmap(host->regs);
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index f8a96d652e9..3946a0eb3a0 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -1264,13 +1264,15 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!r)
- goto out;
- host->rxdma = r->start;
+ dev_warn(&pdev->dev, "RX DMA resource not specified\n");
+ else
+ host->rxdma = r->start;
r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!r)
- goto out;
- host->txdma = r->start;
+ dev_warn(&pdev->dev, "TX DMA resource not specified\n");
+ else
+ host->txdma = r->start;
host->mem_res = mem;
host->base = ioremap(mem->start, mem_size);
@@ -1488,18 +1490,7 @@ static struct platform_driver davinci_mmcsd_driver = {
.id_table = davinci_mmc_devtype,
};
-static int __init davinci_mmcsd_init(void)
-{
- return platform_driver_probe(&davinci_mmcsd_driver,
- davinci_mmcsd_probe);
-}
-module_init(davinci_mmcsd_init);
-
-static void __exit davinci_mmcsd_exit(void)
-{
- platform_driver_unregister(&davinci_mmcsd_driver);
-}
-module_exit(davinci_mmcsd_exit);
+module_platform_driver_probe(davinci_mmcsd_driver, davinci_mmcsd_probe);
MODULE_AUTHOR("Texas Instruments India");
MODULE_LICENSE("GPL");
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 72fd0f2c901..f013e7e3746 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -152,45 +152,8 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
return 0;
}
-static int dw_mci_exynos_setup_bus(struct dw_mci *host,
- struct device_node *slot_np, u8 bus_width)
-{
- int idx, gpio, ret;
-
- if (!slot_np)
- return -EINVAL;
-
- /* cmd + clock + bus-width pins */
- for (idx = 0; idx < NUM_PINS(bus_width); idx++) {
- gpio = of_get_gpio(slot_np, idx);
- if (!gpio_is_valid(gpio)) {
- dev_err(host->dev, "invalid gpio: %d\n", gpio);
- return -EINVAL;
- }
-
- ret = devm_gpio_request(host->dev, gpio, "dw-mci-bus");
- if (ret) {
- dev_err(host->dev, "gpio [%d] request failed\n", gpio);
- return -EBUSY;
- }
- }
-
- if (host->pdata->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
- return 0;
-
- gpio = of_get_named_gpio(slot_np, "samsung,cd-pinmux-gpio", 0);
- if (gpio_is_valid(gpio)) {
- if (devm_gpio_request(host->dev, gpio, "dw-mci-cd"))
- dev_err(host->dev, "gpio [%d] request failed\n", gpio);
- } else {
- dev_info(host->dev, "cd gpio not available");
- }
-
- return 0;
-}
-
-/* Exynos5250 controller specific capabilities */
-static unsigned long exynos5250_dwmmc_caps[4] = {
+/* Common capabilities of Exynos4/Exynos5 SoC */
+static unsigned long exynos_dwmmc_caps[4] = {
MMC_CAP_UHS_DDR50 | MMC_CAP_1_8V_DDR |
MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23,
MMC_CAP_CMD23,
@@ -198,24 +161,25 @@ static unsigned long exynos5250_dwmmc_caps[4] = {
MMC_CAP_CMD23,
};
-static const struct dw_mci_drv_data exynos5250_drv_data = {
- .caps = exynos5250_dwmmc_caps,
+static const struct dw_mci_drv_data exynos_drv_data = {
+ .caps = exynos_dwmmc_caps,
.init = dw_mci_exynos_priv_init,
.setup_clock = dw_mci_exynos_setup_clock,
.prepare_command = dw_mci_exynos_prepare_command,
.set_ios = dw_mci_exynos_set_ios,
.parse_dt = dw_mci_exynos_parse_dt,
- .setup_bus = dw_mci_exynos_setup_bus,
};
static const struct of_device_id dw_mci_exynos_match[] = {
+ { .compatible = "samsung,exynos4412-dw-mshc",
+ .data = &exynos_drv_data, },
{ .compatible = "samsung,exynos5250-dw-mshc",
- .data = &exynos5250_drv_data, },
+ .data = &exynos_drv_data, },
{},
};
MODULE_DEVICE_TABLE(of, dw_mci_exynos_match);
-int dw_mci_exynos_probe(struct platform_device *pdev)
+static int dw_mci_exynos_probe(struct platform_device *pdev)
{
const struct dw_mci_drv_data *drv_data;
const struct of_device_id *match;
@@ -230,7 +194,7 @@ static struct platform_driver dw_mci_exynos_pltfm_driver = {
.remove = __exit_p(dw_mci_pltfm_remove),
.driver = {
.name = "dwmmc_exynos",
- .of_match_table = of_match_ptr(dw_mci_exynos_match),
+ .of_match_table = dw_mci_exynos_match,
.pm = &dw_mci_pltfm_pmops,
},
};
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 98342213ed2..bc3a1bc4940 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -795,9 +795,9 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
/* DDR mode set */
if (ios->timing == MMC_TIMING_UHS_DDR50)
- regs |= (0x1 << slot->id) << 16;
+ regs |= ((0x1 << slot->id) << 16);
else
- regs &= ~(0x1 << slot->id) << 16;
+ regs &= ~((0x1 << slot->id) << 16);
mci_writel(slot->host, UHS_REG, regs);
@@ -818,6 +818,20 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
switch (ios->power_mode) {
case MMC_POWER_UP:
set_bit(DW_MMC_CARD_NEED_INIT, &slot->flags);
+ /* Power up slot */
+ if (slot->host->pdata->setpower)
+ slot->host->pdata->setpower(slot->id, mmc->ocr_avail);
+ regs = mci_readl(slot->host, PWREN);
+ regs |= (1 << slot->id);
+ mci_writel(slot->host, PWREN, regs);
+ break;
+ case MMC_POWER_OFF:
+ /* Power down slot */
+ if (slot->host->pdata->setpower)
+ slot->host->pdata->setpower(slot->id, 0);
+ regs = mci_readl(slot->host, PWREN);
+ regs &= ~(1 << slot->id);
+ mci_writel(slot->host, PWREN, regs);
break;
default:
break;
@@ -1191,12 +1205,15 @@ static void dw_mci_pull_final_bytes(struct dw_mci *host, void *buf, int cnt)
static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt)
{
+ struct mmc_data *data = host->data;
+ int init_cnt = cnt;
+
/* try and push anything in the part_buf */
if (unlikely(host->part_buf_count)) {
int len = dw_mci_push_part_bytes(host, buf, cnt);
buf += len;
cnt -= len;
- if (!sg_next(host->sg) || host->part_buf_count == 2) {
+ if (host->part_buf_count == 2) {
mci_writew(host, DATA(host->data_offset),
host->part_buf16);
host->part_buf_count = 0;
@@ -1229,9 +1246,11 @@ static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt)
/* put anything remaining in the part_buf */
if (cnt) {
dw_mci_set_part_bytes(host, buf, cnt);
- if (!sg_next(host->sg))
+ /* Push data if we have reached the expected data length */
+ if ((data->bytes_xfered + init_cnt) ==
+ (data->blksz * data->blocks))
mci_writew(host, DATA(host->data_offset),
- host->part_buf16);
+ host->part_buf16);
}
}
@@ -1269,12 +1288,15 @@ static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt)
static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt)
{
+ struct mmc_data *data = host->data;
+ int init_cnt = cnt;
+
/* try and push anything in the part_buf */
if (unlikely(host->part_buf_count)) {
int len = dw_mci_push_part_bytes(host, buf, cnt);
buf += len;
cnt -= len;
- if (!sg_next(host->sg) || host->part_buf_count == 4) {
+ if (host->part_buf_count == 4) {
mci_writel(host, DATA(host->data_offset),
host->part_buf32);
host->part_buf_count = 0;
@@ -1307,9 +1329,11 @@ static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt)
/* put anything remaining in the part_buf */
if (cnt) {
dw_mci_set_part_bytes(host, buf, cnt);
- if (!sg_next(host->sg))
+ /* Push data if we have reached the expected data length */
+ if ((data->bytes_xfered + init_cnt) ==
+ (data->blksz * data->blocks))
mci_writel(host, DATA(host->data_offset),
- host->part_buf32);
+ host->part_buf32);
}
}
@@ -1347,13 +1371,17 @@ static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt)
static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt)
{
+ struct mmc_data *data = host->data;
+ int init_cnt = cnt;
+
/* try and push anything in the part_buf */
if (unlikely(host->part_buf_count)) {
int len = dw_mci_push_part_bytes(host, buf, cnt);
buf += len;
cnt -= len;
- if (!sg_next(host->sg) || host->part_buf_count == 8) {
- mci_writew(host, DATA(host->data_offset),
+
+ if (host->part_buf_count == 8) {
+ mci_writeq(host, DATA(host->data_offset),
host->part_buf);
host->part_buf_count = 0;
}
@@ -1385,9 +1413,11 @@ static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt)
/* put anything remaining in the part_buf */
if (cnt) {
dw_mci_set_part_bytes(host, buf, cnt);
- if (!sg_next(host->sg))
+ /* Push data if we have reached the expected data length */
+ if ((data->bytes_xfered + init_cnt) ==
+ (data->blksz * data->blocks))
mci_writeq(host, DATA(host->data_offset),
- host->part_buf);
+ host->part_buf);
}
}
@@ -1438,7 +1468,7 @@ static void dw_mci_pull_data(struct dw_mci *host, void *buf, int cnt)
host->pull_data(host, buf, cnt);
}
-static void dw_mci_read_data_pio(struct dw_mci *host)
+static void dw_mci_read_data_pio(struct dw_mci *host, bool dto)
{
struct sg_mapping_iter *sg_miter = &host->sg_miter;
void *buf;
@@ -1446,7 +1476,7 @@ static void dw_mci_read_data_pio(struct dw_mci *host)
struct mmc_data *data = host->data;
int shift = host->data_shift;
u32 status;
- unsigned int nbytes = 0, len;
+ unsigned int len;
unsigned int remain, fcnt;
do {
@@ -1465,16 +1495,17 @@ static void dw_mci_read_data_pio(struct dw_mci *host)
if (!len)
break;
dw_mci_pull_data(host, (void *)(buf + offset), len);
+ data->bytes_xfered += len;
offset += len;
- nbytes += len;
remain -= len;
} while (remain);
sg_miter->consumed = offset;
status = mci_readl(host, MINTSTS);
mci_writel(host, RINTSTS, SDMMC_INT_RXDR);
- } while (status & SDMMC_INT_RXDR); /*if the RXDR is ready read again*/
- data->bytes_xfered += nbytes;
+ /* if the RXDR is ready read again */
+ } while ((status & SDMMC_INT_RXDR) ||
+ (dto && SDMMC_GET_FCNT(mci_readl(host, STATUS))));
if (!remain) {
if (!sg_miter_next(sg_miter))
@@ -1485,7 +1516,6 @@ static void dw_mci_read_data_pio(struct dw_mci *host)
return;
done:
- data->bytes_xfered += nbytes;
sg_miter_stop(sg_miter);
host->sg = NULL;
smp_wmb();
@@ -1500,7 +1530,7 @@ static void dw_mci_write_data_pio(struct dw_mci *host)
struct mmc_data *data = host->data;
int shift = host->data_shift;
u32 status;
- unsigned int nbytes = 0, len;
+ unsigned int len;
unsigned int fifo_depth = host->fifo_depth;
unsigned int remain, fcnt;
@@ -1521,8 +1551,8 @@ static void dw_mci_write_data_pio(struct dw_mci *host)
if (!len)
break;
host->push_data(host, (void *)(buf + offset), len);
+ data->bytes_xfered += len;
offset += len;
- nbytes += len;
remain -= len;
} while (remain);
@@ -1530,7 +1560,6 @@ static void dw_mci_write_data_pio(struct dw_mci *host)
status = mci_readl(host, MINTSTS);
mci_writel(host, RINTSTS, SDMMC_INT_TXDR);
} while (status & SDMMC_INT_TXDR); /* if TXDR write again */
- data->bytes_xfered += nbytes;
if (!remain) {
if (!sg_miter_next(sg_miter))
@@ -1541,7 +1570,6 @@ static void dw_mci_write_data_pio(struct dw_mci *host)
return;
done:
- data->bytes_xfered += nbytes;
sg_miter_stop(sg_miter);
host->sg = NULL;
smp_wmb();
@@ -1563,11 +1591,11 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
{
struct dw_mci *host = dev_id;
u32 pending;
- unsigned int pass_count = 0;
int i;
- do {
- pending = mci_readl(host, MINTSTS); /* read-only mask reg */
+ pending = mci_readl(host, MINTSTS); /* read-only mask reg */
+
+ if (pending) {
/*
* DTO fix - version 2.10a and below, and only if internal DMA
@@ -1579,9 +1607,6 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
pending |= SDMMC_INT_DATA_OVER;
}
- if (!pending)
- break;
-
if (pending & DW_MCI_CMD_ERROR_FLAGS) {
mci_writel(host, RINTSTS, DW_MCI_CMD_ERROR_FLAGS);
host->cmd_status = pending;
@@ -1605,7 +1630,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
smp_wmb();
if (host->dir_status == DW_MCI_RECV_STATUS) {
if (host->sg != NULL)
- dw_mci_read_data_pio(host);
+ dw_mci_read_data_pio(host, true);
}
set_bit(EVENT_DATA_COMPLETE, &host->pending_events);
tasklet_schedule(&host->tasklet);
@@ -1614,7 +1639,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
if (pending & SDMMC_INT_RXDR) {
mci_writel(host, RINTSTS, SDMMC_INT_RXDR);
if (host->dir_status == DW_MCI_RECV_STATUS && host->sg)
- dw_mci_read_data_pio(host);
+ dw_mci_read_data_pio(host, false);
}
if (pending & SDMMC_INT_TXDR) {
@@ -1642,7 +1667,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
}
}
- } while (pass_count++ < 5);
+ }
#ifdef CONFIG_MMC_DW_IDMAC
/* Handle DMA interrupts */
@@ -1674,10 +1699,6 @@ static void dw_mci_work_routine_card(struct work_struct *work)
dev_dbg(&slot->mmc->class_dev, "card %s\n",
present ? "inserted" : "removed");
- /* Power up slot (before spin_lock, may sleep) */
- if (present != 0 && host->pdata->setpower)
- host->pdata->setpower(slot->id, mmc->ocr_avail);
-
spin_lock_bh(&host->lock);
/* Card change detected */
@@ -1760,10 +1781,6 @@ static void dw_mci_work_routine_card(struct work_struct *work)
spin_unlock_bh(&host->lock);
- /* Power down slot (after spin_unlock, may sleep) */
- if (present == 0 && host->pdata->setpower)
- host->pdata->setpower(slot->id, 0);
-
present = dw_mci_get_cd(mmc);
}
@@ -1935,14 +1952,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
else
bus_width = 1;
- if (drv_data && drv_data->setup_bus) {
- struct device_node *slot_np;
- slot_np = dw_mci_of_find_slot_node(host->dev, slot->id);
- ret = drv_data->setup_bus(host, slot_np, bus_width);
- if (ret)
- goto err_setup_bus;
- }
-
switch (bus_width) {
case 8:
mmc->caps |= MMC_CAP_8_BIT_DATA;
@@ -1980,8 +1989,14 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
if (IS_ERR(host->vmmc)) {
pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc));
host->vmmc = NULL;
- } else
- regulator_enable(host->vmmc);
+ } else {
+ ret = regulator_enable(host->vmmc);
+ if (ret) {
+ dev_err(host->dev,
+ "failed to enable regulator: %d\n", ret);
+ goto err_setup_bus;
+ }
+ }
if (dw_mci_get_cd(mmc))
set_bit(DW_MMC_CARD_PRESENT, &slot->flags);
@@ -1990,7 +2005,9 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
slot->wp_gpio = dw_mci_of_get_wp_gpio(host->dev, slot->id);
- mmc_add_host(mmc);
+ ret = mmc_add_host(mmc);
+ if (ret)
+ goto err_setup_bus;
#if defined(CONFIG_DEBUG_FS)
dw_mci_init_debugfs(slot);
@@ -2289,6 +2306,18 @@ int dw_mci_probe(struct dw_mci *host)
mci_writel(host, CLKENA, 0);
mci_writel(host, CLKSRC, 0);
+ /*
+ * In 2.40a spec, Data offset is changed.
+ * Need to check the version-id and set data-offset for DATA register.
+ */
+ host->verid = SDMMC_GET_VERID(mci_readl(host, VERID));
+ dev_info(host->dev, "Version ID is %04x\n", host->verid);
+
+ if (host->verid < DW_MMC_240A)
+ host->data_offset = DATA_OFFSET;
+ else
+ host->data_offset = DATA_240A_OFFSET;
+
tasklet_init(&host->tasklet, dw_mci_tasklet_func, (unsigned long)host);
host->card_workqueue = alloc_workqueue("dw-mci-card",
WQ_MEM_RECLAIM | WQ_NON_REENTRANT, 1);
@@ -2337,18 +2366,6 @@ int dw_mci_probe(struct dw_mci *host)
goto err_workqueue;
}
- /*
- * In 2.40a spec, Data offset is changed.
- * Need to check the version-id and set data-offset for DATA register.
- */
- host->verid = SDMMC_GET_VERID(mci_readl(host, VERID));
- dev_info(host->dev, "Version ID is %04x\n", host->verid);
-
- if (host->verid < DW_MMC_240A)
- host->data_offset = DATA_OFFSET;
- else
- host->data_offset = DATA_240A_OFFSET;
-
if (host->quirks & DW_MCI_QUIRK_IDMAC_DTO)
dev_info(host->dev, "Internal DMAC interrupt fix enabled.\n");
@@ -2445,8 +2462,14 @@ int dw_mci_resume(struct dw_mci *host)
{
int i, ret;
- if (host->vmmc)
- regulator_enable(host->vmmc);
+ if (host->vmmc) {
+ ret = regulator_enable(host->vmmc);
+ if (ret) {
+ dev_err(host->dev,
+ "failed to enable regulator: %d\n", ret);
+ return ret;
+ }
+ }
if (!mci_wait_reset(host->dev, host)) {
ret = -ENODEV;
@@ -2485,7 +2508,7 @@ EXPORT_SYMBOL(dw_mci_resume);
static int __init dw_mci_init(void)
{
- printk(KERN_INFO "Synopsys Designware Multimedia Card Interface Driver");
+ pr_info("Synopsys Designware Multimedia Card Interface Driver\n");
return 0;
}
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 53b8fd987e4..0b74189e7ee 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -190,7 +190,6 @@ extern int dw_mci_resume(struct dw_mci *host);
* @prepare_command: handle CMD register extensions.
* @set_ios: handle bus specific extensions.
* @parse_dt: parse implementation specific device tree properties.
- * @setup_bus: initialize io-interface
*
* Provide controller implementation specific extensions. The usage of this
* data structure is fully optional and usage of each member in this structure
@@ -203,7 +202,5 @@ struct dw_mci_drv_data {
void (*prepare_command)(struct dw_mci *host, u32 *cmdr);
void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
int (*parse_dt)(struct dw_mci *host);
- int (*setup_bus)(struct dw_mci *host,
- struct device_node *slot_np, u8 bus_width);
};
#endif /* _DW_MMC_H_ */
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 145cdaf000d..8960fc846c7 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -119,10 +119,8 @@ static int mvsd_setup_data(struct mvsd_host *host, struct mmc_data *data)
host->pio_size = data->blocks * data->blksz;
host->pio_ptr = sg_virt(data->sg);
if (!nodma)
- pr_debug("%s: fallback to PIO for data "
- "at 0x%p size %d\n",
- mmc_hostname(host->mmc),
- host->pio_ptr, host->pio_size);
+ dev_dbg(host->dev, "fallback to PIO for data at 0x%p size %d\n",
+ host->pio_ptr, host->pio_size);
return 1;
} else {
dma_addr_t phys_addr;
@@ -473,8 +471,8 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
if (mrq->data)
err_status = mvsd_finish_data(host, mrq->data, err_status);
if (err_status) {
- pr_err("%s: unhandled error status %#04x\n",
- mmc_hostname(host->mmc), err_status);
+ dev_err(host->dev, "unhandled error status %#04x\n",
+ err_status);
cmd->error = -ENOMSG;
}
@@ -491,9 +489,8 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
if (irq_handled)
return IRQ_HANDLED;
- pr_err("%s: unhandled interrupt status=0x%04x en=0x%04x "
- "pio=%d\n", mmc_hostname(host->mmc), intr_status,
- host->intr_en, host->pio_size);
+ dev_err(host->dev, "unhandled interrupt status=0x%04x en=0x%04x pio=%d\n",
+ intr_status, host->intr_en, host->pio_size);
return IRQ_NONE;
}
@@ -507,13 +504,11 @@ static void mvsd_timeout_timer(unsigned long data)
spin_lock_irqsave(&host->lock, flags);
mrq = host->mrq;
if (mrq) {
- pr_err("%s: Timeout waiting for hardware interrupt.\n",
- mmc_hostname(host->mmc));
- pr_err("%s: hw_state=0x%04x, intr_status=0x%04x "
- "intr_en=0x%04x\n", mmc_hostname(host->mmc),
- mvsd_read(MVSD_HW_STATE),
- mvsd_read(MVSD_NOR_INTR_STATUS),
- mvsd_read(MVSD_NOR_INTR_EN));
+ dev_err(host->dev, "Timeout waiting for hardware interrupt.\n");
+ dev_err(host->dev, "hw_state=0x%04x, intr_status=0x%04x intr_en=0x%04x\n",
+ mvsd_read(MVSD_HW_STATE),
+ mvsd_read(MVSD_NOR_INTR_STATUS),
+ mvsd_read(MVSD_NOR_INTR_EN));
host->mrq = NULL;
@@ -741,8 +736,8 @@ static int __init mvsd_probe(struct platform_device *pdev)
goto out;
}
host->base_clock = mvsd_data->clock / 2;
- gpio_card_detect = mvsd_data->gpio_card_detect;
- gpio_write_protect = mvsd_data->gpio_write_protect;
+ gpio_card_detect = mvsd_data->gpio_card_detect ? : -EINVAL;
+ gpio_write_protect = mvsd_data->gpio_write_protect ? : -EINVAL;
}
mmc->ops = &mvsd_ops;
@@ -778,7 +773,7 @@ static int __init mvsd_probe(struct platform_device *pdev)
ret = devm_request_irq(&pdev->dev, irq, mvsd_irq, 0, DRIVER_NAME, host);
if (ret) {
- pr_err("%s: cannot assign irq %d\n", DRIVER_NAME, irq);
+ dev_err(&pdev->dev, "cannot assign irq %d\n", irq);
goto out;
}
@@ -797,13 +792,11 @@ static int __init mvsd_probe(struct platform_device *pdev)
if (ret)
goto out;
- pr_notice("%s: %s driver initialized, ",
- mmc_hostname(mmc), DRIVER_NAME);
if (!(mmc->caps & MMC_CAP_NEEDS_POLL))
- printk("using GPIO %d for card detection\n",
- gpio_card_detect);
+ dev_notice(&pdev->dev, "using GPIO %d for card detection\n",
+ gpio_card_detect);
else
- printk("lacking card detect (fall back to polling)\n");
+ dev_notice(&pdev->dev, "lacking card detect (fall back to polling)\n");
return 0;
out:
@@ -881,18 +874,7 @@ static struct platform_driver mvsd_driver = {
},
};
-static int __init mvsd_init(void)
-{
- return platform_driver_probe(&mvsd_driver, mvsd_probe);
-}
-
-static void __exit mvsd_exit(void)
-{
- platform_driver_unregister(&mvsd_driver);
-}
-
-module_init(mvsd_init);
-module_exit(mvsd_exit);
+module_platform_driver_probe(mvsd_driver, mvsd_probe);
/* maximum card clock frequency (default 50MHz) */
module_param(maxfreq, int, 0);
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index a72936eea6f..d5036353bdd 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -34,10 +34,14 @@
#include <linux/regulator/consumer.h>
#include <linux/dmaengine.h>
#include <linux/types.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_dma.h>
+#include <linux/of_gpio.h>
+#include <linux/mmc/slot-gpio.h>
#include <asm/dma.h>
#include <asm/irq.h>
-#include <asm/sizes.h>
#include <linux/platform_data/mmc-mxcmmc.h>
#include <linux/platform_data/dma-imx.h>
@@ -115,6 +119,7 @@
enum mxcmci_type {
IMX21_MMC,
IMX31_MMC,
+ MPC512X_MMC,
};
struct mxcmci_host {
@@ -160,7 +165,7 @@ struct mxcmci_host {
enum mxcmci_type devtype;
};
-static struct platform_device_id mxcmci_devtype[] = {
+static const struct platform_device_id mxcmci_devtype[] = {
{
.name = "imx21-mmc",
.driver_data = IMX21_MMC,
@@ -168,16 +173,72 @@ static struct platform_device_id mxcmci_devtype[] = {
.name = "imx31-mmc",
.driver_data = IMX31_MMC,
}, {
+ .name = "mpc512x-sdhc",
+ .driver_data = MPC512X_MMC,
+ }, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(platform, mxcmci_devtype);
+static const struct of_device_id mxcmci_of_match[] = {
+ {
+ .compatible = "fsl,imx21-mmc",
+ .data = &mxcmci_devtype[IMX21_MMC],
+ }, {
+ .compatible = "fsl,imx31-mmc",
+ .data = &mxcmci_devtype[IMX31_MMC],
+ }, {
+ .compatible = "fsl,mpc5121-sdhc",
+ .data = &mxcmci_devtype[MPC512X_MMC],
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, mxcmci_of_match);
+
static inline int is_imx31_mmc(struct mxcmci_host *host)
{
return host->devtype == IMX31_MMC;
}
+static inline int is_mpc512x_mmc(struct mxcmci_host *host)
+{
+ return host->devtype == MPC512X_MMC;
+}
+
+static inline u32 mxcmci_readl(struct mxcmci_host *host, int reg)
+{
+ if (IS_ENABLED(CONFIG_PPC_MPC512x))
+ return ioread32be(host->base + reg);
+ else
+ return readl(host->base + reg);
+}
+
+static inline void mxcmci_writel(struct mxcmci_host *host, u32 val, int reg)
+{
+ if (IS_ENABLED(CONFIG_PPC_MPC512x))
+ iowrite32be(val, host->base + reg);
+ else
+ writel(val, host->base + reg);
+}
+
+static inline u16 mxcmci_readw(struct mxcmci_host *host, int reg)
+{
+ if (IS_ENABLED(CONFIG_PPC_MPC512x))
+ return ioread32be(host->base + reg);
+ else
+ return readw(host->base + reg);
+}
+
+static inline void mxcmci_writew(struct mxcmci_host *host, u16 val, int reg)
+{
+ if (IS_ENABLED(CONFIG_PPC_MPC512x))
+ iowrite32be(val, host->base + reg);
+ else
+ writew(val, host->base + reg);
+}
+
static void mxcmci_set_clk_rate(struct mxcmci_host *host, unsigned int clk_ios);
static inline void mxcmci_init_ocr(struct mxcmci_host *host)
@@ -229,17 +290,40 @@ static void mxcmci_softreset(struct mxcmci_host *host)
dev_dbg(mmc_dev(host->mmc), "mxcmci_softreset\n");
/* reset sequence */
- writew(STR_STP_CLK_RESET, host->base + MMC_REG_STR_STP_CLK);
- writew(STR_STP_CLK_RESET | STR_STP_CLK_START_CLK,
- host->base + MMC_REG_STR_STP_CLK);
+ mxcmci_writew(host, STR_STP_CLK_RESET, MMC_REG_STR_STP_CLK);
+ mxcmci_writew(host, STR_STP_CLK_RESET | STR_STP_CLK_START_CLK,
+ MMC_REG_STR_STP_CLK);
for (i = 0; i < 8; i++)
- writew(STR_STP_CLK_START_CLK, host->base + MMC_REG_STR_STP_CLK);
+ mxcmci_writew(host, STR_STP_CLK_START_CLK, MMC_REG_STR_STP_CLK);
- writew(0xff, host->base + MMC_REG_RES_TO);
+ mxcmci_writew(host, 0xff, MMC_REG_RES_TO);
}
static int mxcmci_setup_dma(struct mmc_host *mmc);
+#if IS_ENABLED(CONFIG_PPC_MPC512x)
+static inline void buffer_swap32(u32 *buf, int len)
+{
+ int i;
+
+ for (i = 0; i < ((len + 3) / 4); i++) {
+ st_le32(buf, *buf);
+ buf++;
+ }
+}
+
+static void mxcmci_swap_buffers(struct mmc_data *data)
+{
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(data->sg, sg, data->sg_len, i)
+ buffer_swap32(sg_virt(sg), sg->length);
+}
+#else
+static inline void mxcmci_swap_buffers(struct mmc_data *data) {}
+#endif
+
static int mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data)
{
unsigned int nob = data->blocks;
@@ -255,8 +339,8 @@ static int mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data)
host->data = data;
data->bytes_xfered = 0;
- writew(nob, host->base + MMC_REG_NOB);
- writew(blksz, host->base + MMC_REG_BLK_LEN);
+ mxcmci_writew(host, nob, MMC_REG_NOB);
+ mxcmci_writew(host, blksz, MMC_REG_BLK_LEN);
host->datasize = datasize;
if (!mxcmci_use_dma(host))
@@ -275,6 +359,8 @@ static int mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data)
} else {
host->dma_dir = DMA_TO_DEVICE;
slave_dirn = DMA_MEM_TO_DEV;
+
+ mxcmci_swap_buffers(data);
}
nents = dma_map_sg(host->dma->device->dev, data->sg,
@@ -312,13 +398,13 @@ static void mxcmci_dma_callback(void *data)
del_timer(&host->watchdog);
- stat = readl(host->base + MMC_REG_STATUS);
- writel(stat & ~STATUS_DATA_TRANS_DONE, host->base + MMC_REG_STATUS);
+ stat = mxcmci_readl(host, MMC_REG_STATUS);
+ mxcmci_writel(host, stat & ~STATUS_DATA_TRANS_DONE, MMC_REG_STATUS);
dev_dbg(mmc_dev(host->mmc), "%s: 0x%08x\n", __func__, stat);
if (stat & STATUS_READ_OP_DONE)
- writel(STATUS_READ_OP_DONE, host->base + MMC_REG_STATUS);
+ mxcmci_writel(host, STATUS_READ_OP_DONE, MMC_REG_STATUS);
mxcmci_data_done(host, stat);
}
@@ -366,12 +452,12 @@ static int mxcmci_start_cmd(struct mxcmci_host *host, struct mmc_command *cmd,
spin_lock_irqsave(&host->lock, flags);
if (host->use_sdio)
int_cntr |= INT_SDIO_IRQ_EN;
- writel(int_cntr, host->base + MMC_REG_INT_CNTR);
+ mxcmci_writel(host, int_cntr, MMC_REG_INT_CNTR);
spin_unlock_irqrestore(&host->lock, flags);
- writew(cmd->opcode, host->base + MMC_REG_CMD);
- writel(cmd->arg, host->base + MMC_REG_ARG);
- writew(cmdat, host->base + MMC_REG_CMD_DAT_CONT);
+ mxcmci_writew(host, cmd->opcode, MMC_REG_CMD);
+ mxcmci_writel(host, cmd->arg, MMC_REG_ARG);
+ mxcmci_writew(host, cmdat, MMC_REG_CMD_DAT_CONT);
return 0;
}
@@ -385,7 +471,7 @@ static void mxcmci_finish_request(struct mxcmci_host *host,
spin_lock_irqsave(&host->lock, flags);
if (host->use_sdio)
int_cntr |= INT_SDIO_IRQ_EN;
- writel(int_cntr, host->base + MMC_REG_INT_CNTR);
+ mxcmci_writel(host, int_cntr, MMC_REG_INT_CNTR);
spin_unlock_irqrestore(&host->lock, flags);
host->req = NULL;
@@ -400,9 +486,11 @@ static int mxcmci_finish_data(struct mxcmci_host *host, unsigned int stat)
struct mmc_data *data = host->data;
int data_error;
- if (mxcmci_use_dma(host))
+ if (mxcmci_use_dma(host)) {
dma_unmap_sg(host->dma->device->dev, data->sg, data->sg_len,
host->dma_dir);
+ mxcmci_swap_buffers(data);
+ }
if (stat & STATUS_ERR_MASK) {
dev_dbg(mmc_dev(host->mmc), "request failed. status: 0x%08x\n",
@@ -460,14 +548,14 @@ static void mxcmci_read_response(struct mxcmci_host *host, unsigned int stat)
if (cmd->flags & MMC_RSP_PRESENT) {
if (cmd->flags & MMC_RSP_136) {
for (i = 0; i < 4; i++) {
- a = readw(host->base + MMC_REG_RES_FIFO);
- b = readw(host->base + MMC_REG_RES_FIFO);
+ a = mxcmci_readw(host, MMC_REG_RES_FIFO);
+ b = mxcmci_readw(host, MMC_REG_RES_FIFO);
cmd->resp[i] = a << 16 | b;
}
} else {
- a = readw(host->base + MMC_REG_RES_FIFO);
- b = readw(host->base + MMC_REG_RES_FIFO);
- c = readw(host->base + MMC_REG_RES_FIFO);
+ a = mxcmci_readw(host, MMC_REG_RES_FIFO);
+ b = mxcmci_readw(host, MMC_REG_RES_FIFO);
+ c = mxcmci_readw(host, MMC_REG_RES_FIFO);
cmd->resp[0] = a << 24 | b << 8 | c >> 8;
}
}
@@ -479,7 +567,7 @@ static int mxcmci_poll_status(struct mxcmci_host *host, u32 mask)
unsigned long timeout = jiffies + HZ;
do {
- stat = readl(host->base + MMC_REG_STATUS);
+ stat = mxcmci_readl(host, MMC_REG_STATUS);
if (stat & STATUS_ERR_MASK)
return stat;
if (time_after(jiffies, timeout)) {
@@ -503,7 +591,7 @@ static int mxcmci_pull(struct mxcmci_host *host, void *_buf, int bytes)
STATUS_BUF_READ_RDY | STATUS_READ_OP_DONE);
if (stat)
return stat;
- *buf++ = readl(host->base + MMC_REG_BUFFER_ACCESS);
+ *buf++ = cpu_to_le32(mxcmci_readl(host, MMC_REG_BUFFER_ACCESS));
bytes -= 4;
}
@@ -515,7 +603,7 @@ static int mxcmci_pull(struct mxcmci_host *host, void *_buf, int bytes)
STATUS_BUF_READ_RDY | STATUS_READ_OP_DONE);
if (stat)
return stat;
- tmp = readl(host->base + MMC_REG_BUFFER_ACCESS);
+ tmp = cpu_to_le32(mxcmci_readl(host, MMC_REG_BUFFER_ACCESS));
memcpy(b, &tmp, bytes);
}
@@ -531,7 +619,7 @@ static int mxcmci_push(struct mxcmci_host *host, void *_buf, int bytes)
stat = mxcmci_poll_status(host, STATUS_BUF_WRITE_RDY);
if (stat)
return stat;
- writel(*buf++, host->base + MMC_REG_BUFFER_ACCESS);
+ mxcmci_writel(host, cpu_to_le32(*buf++), MMC_REG_BUFFER_ACCESS);
bytes -= 4;
}
@@ -544,7 +632,7 @@ static int mxcmci_push(struct mxcmci_host *host, void *_buf, int bytes)
return stat;
memcpy(&tmp, b, bytes);
- writel(tmp, host->base + MMC_REG_BUFFER_ACCESS);
+ mxcmci_writel(host, cpu_to_le32(tmp), MMC_REG_BUFFER_ACCESS);
}
stat = mxcmci_poll_status(host, STATUS_BUF_WRITE_RDY);
@@ -590,8 +678,8 @@ static void mxcmci_datawork(struct work_struct *work)
datawork);
int datastat = mxcmci_transfer_data(host);
- writel(STATUS_READ_OP_DONE | STATUS_WRITE_OP_DONE,
- host->base + MMC_REG_STATUS);
+ mxcmci_writel(host, STATUS_READ_OP_DONE | STATUS_WRITE_OP_DONE,
+ MMC_REG_STATUS);
mxcmci_finish_data(host, datastat);
if (host->req->stop) {
@@ -606,24 +694,40 @@ static void mxcmci_datawork(struct work_struct *work)
static void mxcmci_data_done(struct mxcmci_host *host, unsigned int stat)
{
- struct mmc_data *data = host->data;
+ struct mmc_request *req;
int data_error;
+ unsigned long flags;
+
+ spin_lock_irqsave(&host->lock, flags);
+
+ if (!host->data) {
+ spin_unlock_irqrestore(&host->lock, flags);
+ return;
+ }
- if (!data)
+ if (!host->req) {
+ spin_unlock_irqrestore(&host->lock, flags);
return;
+ }
+
+ req = host->req;
+ if (!req->stop)
+ host->req = NULL; /* we will handle finish req below */
data_error = mxcmci_finish_data(host, stat);
+ spin_unlock_irqrestore(&host->lock, flags);
+
mxcmci_read_response(host, stat);
host->cmd = NULL;
- if (host->req->stop) {
- if (mxcmci_start_cmd(host, host->req->stop, 0)) {
- mxcmci_finish_request(host, host->req);
+ if (req->stop) {
+ if (mxcmci_start_cmd(host, req->stop, 0)) {
+ mxcmci_finish_request(host, req);
return;
}
} else {
- mxcmci_finish_request(host, host->req);
+ mxcmci_finish_request(host, req);
}
}
@@ -653,9 +757,11 @@ static irqreturn_t mxcmci_irq(int irq, void *devid)
bool sdio_irq;
u32 stat;
- stat = readl(host->base + MMC_REG_STATUS);
- writel(stat & ~(STATUS_SDIO_INT_ACTIVE | STATUS_DATA_TRANS_DONE |
- STATUS_WRITE_OP_DONE), host->base + MMC_REG_STATUS);
+ stat = mxcmci_readl(host, MMC_REG_STATUS);
+ mxcmci_writel(host,
+ stat & ~(STATUS_SDIO_INT_ACTIVE | STATUS_DATA_TRANS_DONE |
+ STATUS_WRITE_OP_DONE),
+ MMC_REG_STATUS);
dev_dbg(mmc_dev(host->mmc), "%s: 0x%08x\n", __func__, stat);
@@ -665,11 +771,11 @@ static irqreturn_t mxcmci_irq(int irq, void *devid)
if (mxcmci_use_dma(host) &&
(stat & (STATUS_READ_OP_DONE | STATUS_WRITE_OP_DONE)))
- writel(STATUS_READ_OP_DONE | STATUS_WRITE_OP_DONE,
- host->base + MMC_REG_STATUS);
+ mxcmci_writel(host, STATUS_READ_OP_DONE | STATUS_WRITE_OP_DONE,
+ MMC_REG_STATUS);
if (sdio_irq) {
- writel(STATUS_SDIO_INT_ACTIVE, host->base + MMC_REG_STATUS);
+ mxcmci_writel(host, STATUS_SDIO_INT_ACTIVE, MMC_REG_STATUS);
mmc_signal_sdio_irq(host->mmc);
}
@@ -751,7 +857,7 @@ static void mxcmci_set_clk_rate(struct mxcmci_host *host, unsigned int clk_ios)
prescaler <<= 1;
}
- writew((prescaler << 4) | divider, host->base + MMC_REG_CLK_RATE);
+ mxcmci_writew(host, (prescaler << 4) | divider, MMC_REG_CLK_RATE);
dev_dbg(mmc_dev(host->mmc), "scaler: %d divider: %d in: %d out: %d\n",
prescaler, divider, clk_in, clk_ios);
@@ -814,9 +920,9 @@ static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (ios->clock) {
mxcmci_set_clk_rate(host, ios->clock);
- writew(STR_STP_CLK_START_CLK, host->base + MMC_REG_STR_STP_CLK);
+ mxcmci_writew(host, STR_STP_CLK_START_CLK, MMC_REG_STR_STP_CLK);
} else {
- writew(STR_STP_CLK_STOP_CLK, host->base + MMC_REG_STR_STP_CLK);
+ mxcmci_writew(host, STR_STP_CLK_STOP_CLK, MMC_REG_STR_STP_CLK);
}
host->clock = ios->clock;
@@ -839,10 +945,11 @@ static int mxcmci_get_ro(struct mmc_host *mmc)
if (host->pdata && host->pdata->get_ro)
return !!host->pdata->get_ro(mmc_dev(mmc));
/*
- * Board doesn't support read only detection; let the mmc core
- * decide what to do.
+ * If board doesn't support read only detection (no mmc_gpio
+ * context or gpio is invalid), then let the mmc core decide
+ * what to do.
*/
- return -ENOSYS;
+ return mmc_gpio_get_ro(mmc);
}
static void mxcmci_enable_sdio_irq(struct mmc_host *mmc, int enable)
@@ -853,14 +960,14 @@ static void mxcmci_enable_sdio_irq(struct mmc_host *mmc, int enable)
spin_lock_irqsave(&host->lock, flags);
host->use_sdio = enable;
- int_cntr = readl(host->base + MMC_REG_INT_CNTR);
+ int_cntr = mxcmci_readl(host, MMC_REG_INT_CNTR);
if (enable)
int_cntr |= INT_SDIO_IRQ_EN;
else
int_cntr &= ~INT_SDIO_IRQ_EN;
- writel(int_cntr, host->base + MMC_REG_INT_CNTR);
+ mxcmci_writel(host, int_cntr, MMC_REG_INT_CNTR);
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -898,7 +1005,7 @@ static void mxcmci_watchdog(unsigned long data)
struct mmc_host *mmc = (struct mmc_host *)data;
struct mxcmci_host *host = mmc_priv(mmc);
struct mmc_request *req = host->req;
- unsigned int stat = readl(host->base + MMC_REG_STATUS);
+ unsigned int stat = mxcmci_readl(host, MMC_REG_STATUS);
if (host->dma_dir == DMA_FROM_DEVICE) {
dmaengine_terminate_all(host->dma);
@@ -914,7 +1021,8 @@ static void mxcmci_watchdog(unsigned long data)
/* Mark transfer as erroneus and inform the upper layers */
- host->data->error = -ETIMEDOUT;
+ if (host->data)
+ host->data->error = -ETIMEDOUT;
host->req = NULL;
host->cmd = NULL;
host->data = NULL;
@@ -935,9 +1043,14 @@ static int mxcmci_probe(struct platform_device *pdev)
struct mxcmci_host *host = NULL;
struct resource *iores, *r;
int ret = 0, irq;
+ bool dat3_card_detect = false;
dma_cap_mask_t mask;
+ const struct of_device_id *of_id;
+ struct imxmmc_platform_data *pdata = pdev->dev.platform_data;
- pr_info("i.MX SDHC driver\n");
+ pr_info("i.MX/MPC512x SDHC driver\n");
+
+ of_id = of_match_device(mxcmci_of_match, &pdev->dev);
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
@@ -954,11 +1067,16 @@ static int mxcmci_probe(struct platform_device *pdev)
goto out_release_mem;
}
+ mmc_of_parse(mmc);
mmc->ops = &mxcmci_ops;
- mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
+
+ /* For devicetree parsing, the bus width is read from devicetree */
+ if (pdata)
+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
+ else
+ mmc->caps |= MMC_CAP_SDIO_IRQ;
/* MMC core transfer sizes tunable parameters */
- mmc->max_segs = 64;
mmc->max_blk_size = 2048;
mmc->max_blk_count = 65535;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
@@ -971,14 +1089,30 @@ static int mxcmci_probe(struct platform_device *pdev)
goto out_free;
}
+ if (of_id) {
+ const struct platform_device_id *id_entry = of_id->data;
+ host->devtype = id_entry->driver_data;
+ } else {
+ host->devtype = pdev->id_entry->driver_data;
+ }
+
+ /* adjust max_segs after devtype detection */
+ if (!is_mpc512x_mmc(host))
+ mmc->max_segs = 64;
+
host->mmc = mmc;
- host->pdata = pdev->dev.platform_data;
- host->devtype = pdev->id_entry->driver_data;
+ host->pdata = pdata;
spin_lock_init(&host->lock);
+ if (pdata)
+ dat3_card_detect = pdata->dat3_card_detect;
+ else if (!(mmc->caps & MMC_CAP_NONREMOVABLE)
+ && !of_property_read_bool(pdev->dev.of_node, "cd-gpios"))
+ dat3_card_detect = true;
+
mxcmci_init_ocr(host);
- if (host->pdata && host->pdata->dat3_card_detect)
+ if (dat3_card_detect)
host->default_irq_mask =
INT_CARD_INSERTION_EN | INT_CARD_REMOVAL_EN;
else
@@ -1004,7 +1138,7 @@ static int mxcmci_probe(struct platform_device *pdev)
mxcmci_softreset(host);
- host->rev_no = readw(host->base + MMC_REG_REV_NO);
+ host->rev_no = mxcmci_readw(host, MMC_REG_REV_NO);
if (host->rev_no != 0x400) {
ret = -ENODEV;
dev_err(mmc_dev(host->mmc), "wrong rev.no. 0x%08x. aborting.\n",
@@ -1016,25 +1150,28 @@ static int mxcmci_probe(struct platform_device *pdev)
mmc->f_max = clk_get_rate(host->clk_per) >> 1;
/* recommended in data sheet */
- writew(0x2db4, host->base + MMC_REG_READ_TO);
-
- writel(host->default_irq_mask, host->base + MMC_REG_INT_CNTR);
-
- r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (r) {
- host->dmareq = r->start;
- host->dma_data.peripheral_type = IMX_DMATYPE_SDHC;
- host->dma_data.priority = DMA_PRIO_LOW;
- host->dma_data.dma_request = host->dmareq;
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
- host->dma = dma_request_channel(mask, filter, host);
- if (host->dma)
- mmc->max_seg_size = dma_get_max_seg_size(
- host->dma->device->dev);
- }
+ mxcmci_writew(host, 0x2db4, MMC_REG_READ_TO);
+
+ mxcmci_writel(host, host->default_irq_mask, MMC_REG_INT_CNTR);
- if (!host->dma)
+ if (!host->pdata) {
+ host->dma = dma_request_slave_channel(&pdev->dev, "rx-tx");
+ } else {
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (r) {
+ host->dmareq = r->start;
+ host->dma_data.peripheral_type = IMX_DMATYPE_SDHC;
+ host->dma_data.priority = DMA_PRIO_LOW;
+ host->dma_data.dma_request = host->dmareq;
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+ host->dma = dma_request_channel(mask, filter, host);
+ }
+ }
+ if (host->dma)
+ mmc->max_seg_size = dma_get_max_seg_size(
+ host->dma->device->dev);
+ else
dev_info(mmc_dev(host->mmc), "dma not available. Using PIO\n");
INIT_WORK(&host->datawork, mxcmci_datawork);
@@ -1052,12 +1189,12 @@ static int mxcmci_probe(struct platform_device *pdev)
goto out_free_irq;
}
- mmc_add_host(mmc);
-
init_timer(&host->watchdog);
host->watchdog.function = &mxcmci_watchdog;
host->watchdog.data = (unsigned long)mmc;
+ mmc_add_host(mmc);
+
return 0;
out_free_irq:
@@ -1153,6 +1290,7 @@ static struct platform_driver mxcmci_driver = {
#ifdef CONFIG_PM
.pm = &mxcmci_pm_ops,
#endif
+ .of_match_table = mxcmci_of_match,
}
};
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 4efe3021b21..146a53bfab7 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -72,6 +72,9 @@ struct mxs_mmc_host {
int sdio_irq_en;
int wp_gpio;
bool wp_inverted;
+ bool cd_inverted;
+ bool broken_cd;
+ bool non_removable;
};
static int mxs_mmc_get_ro(struct mmc_host *mmc)
@@ -95,8 +98,9 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
struct mxs_mmc_host *host = mmc_priv(mmc);
struct mxs_ssp *ssp = &host->ssp;
- return !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
- BM_SSP_STATUS_CARD_DETECT);
+ return host->non_removable || host->broken_cd ||
+ !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
+ BM_SSP_STATUS_CARD_DETECT) ^ host->cd_inverted;
}
static void mxs_mmc_reset(struct mxs_mmc_host *host)
@@ -686,11 +690,16 @@ static int mxs_mmc_probe(struct platform_device *pdev)
mmc->caps |= MMC_CAP_4_BIT_DATA;
else if (bus_width == 8)
mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
+ host->broken_cd = of_property_read_bool(np, "broken-cd");
+ host->non_removable = of_property_read_bool(np, "non-removable");
+ if (host->non_removable)
+ mmc->caps |= MMC_CAP_NONREMOVABLE;
host->wp_gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);
-
if (flags & OF_GPIO_ACTIVE_LOW)
host->wp_inverted = 1;
+ host->cd_inverted = of_property_read_bool(np, "cd-inverted");
+
mmc->f_min = 400000;
mmc->f_max = 288000000;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index bc5807873b2..6e44025acf0 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1717,6 +1717,12 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
struct omap_mmc_platform_data *pdata;
struct device_node *np = dev->of_node;
u32 bus_width, max_freq;
+ int cd_gpio, wp_gpio;
+
+ cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
+ wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
+ if (cd_gpio == -EPROBE_DEFER || wp_gpio == -EPROBE_DEFER)
+ return ERR_PTR(-EPROBE_DEFER);
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
@@ -1727,8 +1733,8 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
/* This driver only supports 1 slot */
pdata->nr_slots = 1;
- pdata->slots[0].switch_pin = of_get_named_gpio(np, "cd-gpios", 0);
- pdata->slots[0].gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
+ pdata->slots[0].switch_pin = cd_gpio;
+ pdata->slots[0].gpio_wp = wp_gpio;
if (of_find_property(np, "ti,non-removable", NULL)) {
pdata->slots[0].nonremovable = true;
@@ -1774,6 +1780,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
match = of_match_device(of_match_ptr(omap_mmc_of_match), &pdev->dev);
if (match) {
pdata = of_get_hsmmc_pdata(&pdev->dev);
+
+ if (IS_ERR(pdata))
+ return PTR_ERR(pdata);
+
if (match->data) {
const u16 *offsetp = match->data;
pdata->reg_offset = *offsetp;
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index f981f7d1f6e..ad13f4240c4 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -57,6 +57,9 @@ struct realtek_pci_sdmmc {
bool eject;
bool initial_mode;
bool ddr_mode;
+ int power_state;
+#define SDMMC_POWER_ON 1
+#define SDMMC_POWER_OFF 0
};
static inline struct device *sdmmc_dev(struct realtek_pci_sdmmc *host)
@@ -765,6 +768,9 @@ static int sd_power_on(struct realtek_pci_sdmmc *host)
struct rtsx_pcr *pcr = host->pcr;
int err;
+ if (host->power_state == SDMMC_POWER_ON)
+ return 0;
+
rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_SELECT, 0x07, SD_MOD_SEL);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_SHARE_MODE,
@@ -787,6 +793,7 @@ static int sd_power_on(struct realtek_pci_sdmmc *host)
if (err < 0)
return err;
+ host->power_state = SDMMC_POWER_ON;
return 0;
}
@@ -795,6 +802,8 @@ static int sd_power_off(struct realtek_pci_sdmmc *host)
struct rtsx_pcr *pcr = host->pcr;
int err;
+ host->power_state = SDMMC_POWER_OFF;
+
rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_CLK_EN, SD_CLK_EN, 0);
@@ -1260,6 +1269,7 @@ static int rtsx_pci_sdmmc_drv_probe(struct platform_device *pdev)
host->pcr = pcr;
host->mmc = mmc;
host->pdev = pdev;
+ host->power_state = SDMMC_POWER_OFF;
platform_set_drvdata(pdev, host);
pcr->slots[RTSX_SD_CARD].p_dev = pdev;
pcr->slots[RTSX_SD_CARD].card_event = rtsx_pci_sdmmc_card_event;
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 2592dddbd96..7bcf74b1a5c 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -195,6 +195,8 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
host->mmc->pm_caps |= c->slot->pm_caps;
}
+ host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
+
err = sdhci_add_host(host);
if (err)
goto err_free;
diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c
index 8ffea05152c..d49bc958c8b 100644
--- a/drivers/mmc/host/sdhci-bcm2835.c
+++ b/drivers/mmc/host/sdhci-bcm2835.c
@@ -124,7 +124,7 @@ unsigned int bcm2835_sdhci_get_min_clock(struct sdhci_host *host)
return MIN_FREQ;
}
-static struct sdhci_ops bcm2835_sdhci_ops = {
+static const struct sdhci_ops bcm2835_sdhci_ops = {
.write_l = bcm2835_sdhci_writel,
.write_w = bcm2835_sdhci_writew,
.write_b = bcm2835_sdhci_writeb,
@@ -135,7 +135,7 @@ static struct sdhci_ops bcm2835_sdhci_ops = {
.get_min_clock = bcm2835_sdhci_get_min_clock,
};
-static struct sdhci_pltfm_data bcm2835_sdhci_pdata = {
+static const struct sdhci_pltfm_data bcm2835_sdhci_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
.ops = &bcm2835_sdhci_ops,
diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c
index 6ba8502c1ee..8ebb6b650f3 100644
--- a/drivers/mmc/host/sdhci-cns3xxx.c
+++ b/drivers/mmc/host/sdhci-cns3xxx.c
@@ -79,12 +79,12 @@ out:
host->clock = clock;
}
-static struct sdhci_ops sdhci_cns3xxx_ops = {
+static const struct sdhci_ops sdhci_cns3xxx_ops = {
.get_max_clock = sdhci_cns3xxx_get_max_clk,
.set_clock = sdhci_cns3xxx_set_clock,
};
-static struct sdhci_pltfm_data sdhci_cns3xxx_pdata = {
+static const struct sdhci_pltfm_data sdhci_cns3xxx_pdata = {
.ops = &sdhci_cns3xxx_ops,
.quirks = SDHCI_QUIRK_BROKEN_DMA |
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index 169fab91778..15e7803040f 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -83,12 +83,12 @@ static u32 sdhci_dove_readl(struct sdhci_host *host, int reg)
return ret;
}
-static struct sdhci_ops sdhci_dove_ops = {
+static const struct sdhci_ops sdhci_dove_ops = {
.read_w = sdhci_dove_readw,
.read_l = sdhci_dove_readl,
};
-static struct sdhci_pltfm_data sdhci_dove_pdata = {
+static const struct sdhci_pltfm_data sdhci_dove_pdata = {
.ops = &sdhci_dove_ops,
.quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
SDHCI_QUIRK_NO_BUSY_IRQ |
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 78ac00227c1..67d6dde2ff1 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -399,7 +399,7 @@ static int esdhc_pltfm_bus_width(struct sdhci_host *host, int width)
return 0;
}
-static struct sdhci_ops sdhci_esdhc_ops = {
+static const struct sdhci_ops sdhci_esdhc_ops = {
.read_l = esdhc_readl_le,
.read_w = esdhc_readw_le,
.write_l = esdhc_writel_le,
@@ -412,7 +412,7 @@ static struct sdhci_ops sdhci_esdhc_ops = {
.platform_bus_width = esdhc_pltfm_bus_width,
};
-static struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
+static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
.quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_NO_HISPD_BIT
| SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
| SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index f32526d2d96..5e68adc2461 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -230,7 +230,7 @@ static void esdhc_of_platform_init(struct sdhci_host *host)
host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
}
-static struct sdhci_ops sdhci_esdhc_ops = {
+static const struct sdhci_ops sdhci_esdhc_ops = {
.read_l = esdhc_readl,
.read_w = esdhc_readw,
.read_b = esdhc_readb,
@@ -249,7 +249,7 @@ static struct sdhci_ops sdhci_esdhc_ops = {
.adma_workaround = esdhci_of_adma_workaround,
};
-static struct sdhci_pltfm_data sdhci_esdhc_pdata = {
+static const struct sdhci_pltfm_data sdhci_esdhc_pdata = {
/*
* card detection could be handled via GPIO
* eSDHC cannot support End Attribute in NOP ADMA descriptor
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index c3d3715ec3d..200a6a9fa80 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -51,7 +51,7 @@ static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg)
udelay(SDHCI_HLWD_WRITE_DELAY);
}
-static struct sdhci_ops sdhci_hlwd_ops = {
+static const struct sdhci_ops sdhci_hlwd_ops = {
.read_l = sdhci_be32bs_readl,
.read_w = sdhci_be32bs_readw,
.read_b = sdhci_be32bs_readb,
@@ -60,7 +60,7 @@ static struct sdhci_ops sdhci_hlwd_ops = {
.write_b = sdhci_hlwd_writeb,
};
-static struct sdhci_pltfm_data sdhci_hlwd_pdata = {
+static const struct sdhci_pltfm_data sdhci_hlwd_pdata = {
.quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
SDHCI_QUIRK_32BIT_DMA_SIZE,
.ops = &sdhci_hlwd_ops,
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index c7ccf3034da..0012d3fdc99 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -975,7 +975,7 @@ static void sdhci_pci_hw_reset(struct sdhci_host *host)
usleep_range(300, 1000);
}
-static struct sdhci_ops sdhci_pci_ops = {
+static const struct sdhci_ops sdhci_pci_ops = {
.enable_dma = sdhci_pci_enable_dma,
.platform_bus_width = sdhci_pci_bus_width,
.hw_reset = sdhci_pci_hw_reset,
@@ -1279,6 +1279,8 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
}
host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ;
+ host->mmc->slotno = slotno;
+ host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
ret = sdhci_add_host(host);
if (ret)
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 3145a780b03..cd0f1f68e26 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -44,7 +44,7 @@ unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host)
}
EXPORT_SYMBOL_GPL(sdhci_pltfm_clk_get_max_clock);
-static struct sdhci_ops sdhci_pltfm_ops = {
+static const struct sdhci_ops sdhci_pltfm_ops = {
};
#ifdef CONFIG_OF
@@ -94,6 +94,7 @@ void sdhci_get_of_property(struct platform_device *pdev)
if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||
of_device_is_compatible(np, "fsl,p1010-esdhc") ||
+ of_device_is_compatible(np, "fsl,t4240-esdhc") ||
of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
@@ -114,7 +115,7 @@ void sdhci_get_of_property(struct platform_device *pdev) {}
EXPORT_SYMBOL_GPL(sdhci_get_of_property);
struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
- struct sdhci_pltfm_data *pdata)
+ const struct sdhci_pltfm_data *pdata)
{
struct sdhci_host *host;
struct sdhci_pltfm_host *pltfm_host;
@@ -201,7 +202,7 @@ void sdhci_pltfm_free(struct platform_device *pdev)
EXPORT_SYMBOL_GPL(sdhci_pltfm_free);
int sdhci_pltfm_register(struct platform_device *pdev,
- struct sdhci_pltfm_data *pdata)
+ const struct sdhci_pltfm_data *pdata)
{
struct sdhci_host *host;
int ret = 0;
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 153b6c509eb..1210ed1b0c6 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -16,7 +16,7 @@
#include "sdhci.h"
struct sdhci_pltfm_data {
- struct sdhci_ops *ops;
+ const struct sdhci_ops *ops;
unsigned int quirks;
};
@@ -91,11 +91,11 @@ static inline void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg)
extern void sdhci_get_of_property(struct platform_device *pdev);
extern struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
- struct sdhci_pltfm_data *pdata);
+ const struct sdhci_pltfm_data *pdata);
extern void sdhci_pltfm_free(struct platform_device *pdev);
extern int sdhci_pltfm_register(struct platform_device *pdev,
- struct sdhci_pltfm_data *pdata);
+ const struct sdhci_pltfm_data *pdata);
extern int sdhci_pltfm_unregister(struct platform_device *pdev);
extern unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host);
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index eeb7d439db1..6a3f702a38a 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -111,7 +111,7 @@ static int pxav2_mmc_set_width(struct sdhci_host *host, int width)
return 0;
}
-static struct sdhci_ops pxav2_sdhci_ops = {
+static const struct sdhci_ops pxav2_sdhci_ops = {
.get_max_clock = sdhci_pltfm_clk_get_max_clock,
.platform_reset_exit = pxav2_set_private_registers,
.platform_bus_width = pxav2_mmc_set_width,
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index a0cdbc570a8..1ae358e0662 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -167,13 +167,21 @@ static int pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
return 0;
}
-static struct sdhci_ops pxav3_sdhci_ops = {
+static const struct sdhci_ops pxav3_sdhci_ops = {
.platform_reset_exit = pxav3_set_private_registers,
.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,
};
+static struct sdhci_pltfm_data sdhci_pxav3_pdata = {
+ .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
+ | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
+ | SDHCI_QUIRK_32BIT_ADMA_SIZE
+ | SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
+ .ops = &pxav3_sdhci_ops,
+};
+
#ifdef CONFIG_OF
static const struct of_device_id sdhci_pxav3_of_match[] = {
{
@@ -187,29 +195,16 @@ static struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev)
{
struct sdhci_pxa_platdata *pdata;
struct device_node *np = dev->of_node;
- u32 bus_width;
u32 clk_delay_cycles;
- enum of_gpio_flags gpio_flags;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return NULL;
- if (of_find_property(np, "non-removable", NULL))
- pdata->flags |= PXA_FLAG_CARD_PERMANENT;
-
- of_property_read_u32(np, "bus-width", &bus_width);
- if (bus_width == 8)
- pdata->flags |= PXA_FLAG_SD_8_BIT_CAPABLE_SLOT;
-
of_property_read_u32(np, "mrvl,clk-delay-cycles", &clk_delay_cycles);
if (clk_delay_cycles > 0)
pdata->clk_delay_cycles = clk_delay_cycles;
- pdata->ext_cd_gpio = of_get_named_gpio_flags(np, "cd-gpios", 0, &gpio_flags);
- if (gpio_flags != OF_GPIO_ACTIVE_LOW)
- pdata->host_caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
-
return pdata;
}
#else
@@ -235,7 +230,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
if (!pxa)
return -ENOMEM;
- host = sdhci_pltfm_init(pdev, NULL);
+ host = sdhci_pltfm_init(pdev, &sdhci_pxav3_pdata);
if (IS_ERR(host)) {
kfree(pxa);
return PTR_ERR(host);
@@ -252,24 +247,18 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
pltfm_host->clk = clk;
clk_prepare_enable(clk);
- host->quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL
- | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
- | SDHCI_QUIRK_32BIT_ADMA_SIZE
- | SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN;
-
/* enable 1/8V DDR capable */
host->mmc->caps |= MMC_CAP_1_8V_DDR;
match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev);
- if (match)
+ if (match) {
+ mmc_of_parse(host->mmc);
+ sdhci_get_of_property(pdev);
pdata = pxav3_get_mmc_pdata(dev);
-
- if (pdata) {
- if (pdata->flags & PXA_FLAG_CARD_PERMANENT) {
- /* on-chip device */
- host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
+ } else if (pdata) {
+ /* on-chip device */
+ if (pdata->flags & PXA_FLAG_CARD_PERMANENT)
host->mmc->caps |= MMC_CAP_NONREMOVABLE;
- }
/* If slot design supports 8 bit data, indicate this to MMC. */
if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT)
@@ -296,10 +285,6 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
}
}
- host->ops = &pxav3_sdhci_ops;
-
- sdhci_get_of_property(pdev);
-
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS);
@@ -317,7 +302,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, host);
- if (pdata->pm_caps & MMC_PM_KEEP_POWER) {
+ if (host->mmc->pm_caps & MMC_PM_KEEP_POWER) {
device_init_wakeup(&pdev->dev, 1);
host->mmc->pm_flags |= MMC_PM_WAKE_SDIO_IRQ;
} else {
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index e4f52b5c259..c6f6246a493 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -25,7 +25,6 @@
#include <linux/of_gpio.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
-#include <linux/pinctrl/consumer.h>
#include <linux/mmc/host.h>
@@ -44,7 +43,6 @@
* @ioarea: The resource created when we claimed the IO area.
* @pdata: The platform data for this controller.
* @cur_clk: The index of the current bus clock.
- * @gpios: List of gpio numbers parsed from device tree.
* @clk_io: The clock for the internal bus interface.
* @clk_bus: The clocks that are available for the SD/MMC bus clock.
*/
@@ -56,8 +54,6 @@ struct sdhci_s3c {
unsigned int cur_clk;
int ext_cd_irq;
int ext_cd_gpio;
- int *gpios;
- struct pinctrl *pctrl;
struct clk *clk_io;
struct clk *clk_bus[MAX_BUS_CLK];
@@ -446,88 +442,39 @@ static int sdhci_s3c_parse_dt(struct device *dev,
struct device_node *node = dev->of_node;
struct sdhci_s3c *ourhost = to_s3c(host);
u32 max_width;
- int gpio, cnt, ret;
+ int gpio;
/* if the bus-width property is not specified, assume width as 1 */
if (of_property_read_u32(node, "bus-width", &max_width))
max_width = 1;
pdata->max_width = max_width;
- ourhost->gpios = devm_kzalloc(dev, NUM_GPIOS(pdata->max_width) *
- sizeof(int), GFP_KERNEL);
- if (!ourhost->gpios)
- return -ENOMEM;
-
/* get the card detection method */
if (of_get_property(node, "broken-cd", NULL)) {
pdata->cd_type = S3C_SDHCI_CD_NONE;
- goto setup_bus;
+ return 0;
}
if (of_get_property(node, "non-removable", NULL)) {
pdata->cd_type = S3C_SDHCI_CD_PERMANENT;
- goto setup_bus;
+ return 0;
}
gpio = of_get_named_gpio(node, "cd-gpios", 0);
if (gpio_is_valid(gpio)) {
pdata->cd_type = S3C_SDHCI_CD_GPIO;
- goto found_cd;
- } else if (gpio != -ENOENT) {
- dev_err(dev, "invalid card detect gpio specified\n");
- return -EINVAL;
- }
-
- gpio = of_get_named_gpio(node, "samsung,cd-pinmux-gpio", 0);
- if (gpio_is_valid(gpio)) {
- pdata->cd_type = S3C_SDHCI_CD_INTERNAL;
- goto found_cd;
- } else if (gpio != -ENOENT) {
- dev_err(dev, "invalid card detect gpio specified\n");
- return -EINVAL;
- }
-
- /* assuming internal card detect that will be configured by pinctrl */
- pdata->cd_type = S3C_SDHCI_CD_INTERNAL;
- goto setup_bus;
-
- found_cd:
- if (pdata->cd_type == S3C_SDHCI_CD_GPIO) {
pdata->ext_cd_gpio = gpio;
ourhost->ext_cd_gpio = -1;
if (of_get_property(node, "cd-inverted", NULL))
pdata->ext_cd_gpio_invert = 1;
- } else if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
- ret = devm_gpio_request(dev, gpio, "sdhci-cd");
- if (ret) {
- dev_err(dev, "card detect gpio request failed\n");
- return -EINVAL;
- }
- ourhost->ext_cd_gpio = gpio;
- }
-
- setup_bus:
- if (!IS_ERR(ourhost->pctrl))
return 0;
-
- /* get the gpios for command, clock and data lines */
- for (cnt = 0; cnt < NUM_GPIOS(pdata->max_width); cnt++) {
- gpio = of_get_gpio(node, cnt);
- if (!gpio_is_valid(gpio)) {
- dev_err(dev, "invalid gpio[%d]\n", cnt);
- return -EINVAL;
- }
- ourhost->gpios[cnt] = gpio;
- }
-
- for (cnt = 0; cnt < NUM_GPIOS(pdata->max_width); cnt++) {
- ret = devm_gpio_request(dev, ourhost->gpios[cnt], "sdhci-gpio");
- if (ret) {
- dev_err(dev, "gpio[%d] request failed\n", cnt);
- return -EINVAL;
- }
+ } else if (gpio != -ENOENT) {
+ dev_err(dev, "invalid card detect gpio specified\n");
+ return -EINVAL;
}
+ /* assuming internal card detect that will be configured by pinctrl */
+ pdata->cd_type = S3C_SDHCI_CD_INTERNAL;
return 0;
}
#else
@@ -588,8 +535,6 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
goto err_pdata_io_clk;
}
- sc->pctrl = devm_pinctrl_get_select_default(&pdev->dev);
-
if (pdev->dev.of_node) {
ret = sdhci_s3c_parse_dt(&pdev->dev, host, pdata);
if (ret)
@@ -607,7 +552,7 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, host);
- sc->clk_io = clk_get(dev, "hsmmc");
+ sc->clk_io = devm_clk_get(dev, "hsmmc");
if (IS_ERR(sc->clk_io)) {
dev_err(dev, "failed to get io clock\n");
ret = PTR_ERR(sc->clk_io);
@@ -622,7 +567,7 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
char name[14];
snprintf(name, 14, "mmc_busclk.%d", ptr);
- clk = clk_get(dev, name);
+ clk = devm_clk_get(dev, name);
if (IS_ERR(clk))
continue;
@@ -763,15 +708,9 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
#ifndef CONFIG_PM_RUNTIME
clk_disable_unprepare(sc->clk_bus[sc->cur_clk]);
#endif
- for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
- if (sc->clk_bus[ptr]) {
- clk_put(sc->clk_bus[ptr]);
- }
- }
err_no_busclks:
clk_disable_unprepare(sc->clk_io);
- clk_put(sc->clk_io);
err_pdata_io_clk:
sdhci_free_host(host);
@@ -784,7 +723,6 @@ static int sdhci_s3c_remove(struct platform_device *pdev)
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_s3c *sc = sdhci_priv(host);
struct s3c_sdhci_platdata *pdata = sc->pdata;
- int ptr;
if (pdata->cd_type == S3C_SDHCI_CD_EXTERNAL && pdata->ext_cd_cleanup)
pdata->ext_cd_cleanup(&sdhci_s3c_notify_change);
@@ -804,13 +742,7 @@ static int sdhci_s3c_remove(struct platform_device *pdev)
#ifndef CONFIG_PM_RUNTIME
clk_disable_unprepare(sc->clk_bus[sc->cur_clk]);
#endif
- for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
- if (sc->clk_bus[ptr]) {
- clk_put(sc->clk_bus[ptr]);
- }
- }
clk_disable_unprepare(sc->clk_io);
- clk_put(sc->clk_io);
sdhci_free_host(host);
platform_set_drvdata(pdev, NULL);
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
new file mode 100644
index 00000000000..09805af0526
--- /dev/null
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -0,0 +1,193 @@
+/*
+ * SDHCI support for SiRF primaII and marco SoCs
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/mmc/host.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/mmc/slot-gpio.h>
+#include <linux/pinctrl/consumer.h>
+#include "sdhci-pltfm.h"
+
+struct sdhci_sirf_priv {
+ struct clk *clk;
+ int gpio_cd;
+};
+
+static unsigned int sdhci_sirf_get_max_clk(struct sdhci_host *host)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_sirf_priv *priv = pltfm_host->priv;
+ return clk_get_rate(priv->clk);
+}
+
+static struct sdhci_ops sdhci_sirf_ops = {
+ .get_max_clock = sdhci_sirf_get_max_clk,
+};
+
+static struct sdhci_pltfm_data sdhci_sirf_pdata = {
+ .ops = &sdhci_sirf_ops,
+ .quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
+ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
+ SDHCI_QUIRK_INVERTED_WRITE_PROTECT |
+ SDHCI_QUIRK_DELAY_AFTER_POWER,
+};
+
+static int sdhci_sirf_probe(struct platform_device *pdev)
+{
+ struct sdhci_host *host;
+ struct sdhci_pltfm_host *pltfm_host;
+ struct sdhci_sirf_priv *priv;
+ struct pinctrl *pinctrl;
+ int ret;
+
+ pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+ if (IS_ERR(pinctrl)) {
+ dev_err(&pdev->dev, "unable to get pinmux");
+ return PTR_ERR(pinctrl);
+ }
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_sirf_priv),
+ GFP_KERNEL);
+ if (!priv) {
+ dev_err(&pdev->dev, "unable to allocate private data");
+ return -ENOMEM;
+ }
+
+ priv->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(priv->clk)) {
+ dev_err(&pdev->dev, "unable to get clock");
+ return PTR_ERR(priv->clk);
+ }
+
+ if (pdev->dev.of_node) {
+ priv->gpio_cd = of_get_named_gpio(pdev->dev.of_node,
+ "cd-gpios", 0);
+ } else {
+ priv->gpio_cd = -EINVAL;
+ }
+
+ host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata);
+ if (IS_ERR(host)) {
+ ret = PTR_ERR(host);
+ goto err_sdhci_pltfm_init;
+ }
+
+ pltfm_host = sdhci_priv(host);
+ pltfm_host->priv = priv;
+
+ sdhci_get_of_property(pdev);
+
+ clk_prepare_enable(priv->clk);
+
+ ret = sdhci_add_host(host);
+ if (ret)
+ goto err_sdhci_add;
+
+ /*
+ * We must request the IRQ after sdhci_add_host(), as the tasklet only
+ * gets setup in sdhci_add_host() and we oops.
+ */
+ if (gpio_is_valid(priv->gpio_cd)) {
+ ret = mmc_gpio_request_cd(host->mmc, priv->gpio_cd);
+ if (ret) {
+ dev_err(&pdev->dev, "card detect irq request failed: %d\n",
+ ret);
+ goto err_request_cd;
+ }
+ }
+
+ return 0;
+
+err_request_cd:
+ sdhci_remove_host(host, 0);
+err_sdhci_add:
+ clk_disable_unprepare(priv->clk);
+ sdhci_pltfm_free(pdev);
+err_sdhci_pltfm_init:
+ return ret;
+}
+
+static int sdhci_sirf_remove(struct platform_device *pdev)
+{
+ struct sdhci_host *host = platform_get_drvdata(pdev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_sirf_priv *priv = pltfm_host->priv;
+
+ sdhci_pltfm_unregister(pdev);
+
+ if (gpio_is_valid(priv->gpio_cd))
+ mmc_gpio_free_cd(host->mmc);
+
+ clk_disable_unprepare(priv->clk);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int sdhci_sirf_suspend(struct device *dev)
+{
+ struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_sirf_priv *priv = pltfm_host->priv;
+ int ret;
+
+ ret = sdhci_suspend_host(host);
+ if (ret)
+ return ret;
+
+ clk_disable(priv->clk);
+
+ return 0;
+}
+
+static int sdhci_sirf_resume(struct device *dev)
+{
+ struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_sirf_priv *priv = pltfm_host->priv;
+ int ret;
+
+ ret = clk_enable(priv->clk);
+ if (ret) {
+ dev_dbg(dev, "Resume: Error enabling clock\n");
+ return ret;
+ }
+
+ return sdhci_resume_host(host);
+}
+
+static SIMPLE_DEV_PM_OPS(sdhci_sirf_pm_ops, sdhci_sirf_suspend, sdhci_sirf_resume);
+#endif
+
+static const struct of_device_id sdhci_sirf_of_match[] = {
+ { .compatible = "sirf,prima2-sdhc" },
+ { }
+};
+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,
+#endif
+ },
+ .probe = sdhci_sirf_probe,
+ .remove = sdhci_sirf_remove,
+};
+
+module_platform_driver(sdhci_sirf_driver);
+
+MODULE_DESCRIPTION("SDHCI driver for SiRFprimaII/SiRFmarco");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index c6ece0bd03b..7ae5b3ae7ba 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -36,7 +36,7 @@ struct spear_sdhci {
};
/* sdhci ops */
-static struct sdhci_ops sdhci_pltfm_ops = {
+static const struct sdhci_ops sdhci_pltfm_ops = {
/* Nothing to do for now. */
};
@@ -291,7 +291,7 @@ static int sdhci_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int sdhci_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 08b06e9a3a2..e0dba74cff9 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -24,6 +24,7 @@
#include <linux/gpio.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
+#include <linux/mmc/slot-gpio.h>
#include <asm/gpio.h>
@@ -38,16 +39,13 @@
#define NVQUIRK_ENABLE_SDHCI_SPEC_300 BIT(2)
struct sdhci_tegra_soc_data {
- struct sdhci_pltfm_data *pdata;
+ const struct sdhci_pltfm_data *pdata;
u32 nvquirks;
};
struct sdhci_tegra {
const struct sdhci_tegra_soc_data *soc_data;
- int cd_gpio;
- int wp_gpio;
int power_gpio;
- int is_8bit;
};
static u32 tegra_sdhci_readl(struct sdhci_host *host, int reg)
@@ -107,23 +105,9 @@ static void tegra_sdhci_writel(struct sdhci_host *host, u32 val, int reg)
static unsigned int tegra_sdhci_get_ro(struct sdhci_host *host)
{
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- struct sdhci_tegra *tegra_host = pltfm_host->priv;
-
- if (!gpio_is_valid(tegra_host->wp_gpio))
- return -1;
-
- return gpio_get_value(tegra_host->wp_gpio);
+ return mmc_gpio_get_ro(host->mmc);
}
-static irqreturn_t carddetect_irq(int irq, void *data)
-{
- struct sdhci_host *sdhost = (struct sdhci_host *)data;
-
- tasklet_schedule(&sdhost->card_tasklet);
- return IRQ_HANDLED;
-};
-
static void tegra_sdhci_reset_exit(struct sdhci_host *host, u8 mask)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -145,12 +129,11 @@ static void tegra_sdhci_reset_exit(struct sdhci_host *host, u8 mask)
static int tegra_sdhci_buswidth(struct sdhci_host *host, int bus_width)
{
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- struct sdhci_tegra *tegra_host = pltfm_host->priv;
u32 ctrl;
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
- if (tegra_host->is_8bit && bus_width == MMC_BUS_WIDTH_8) {
+ if ((host->mmc->caps & MMC_CAP_8_BIT_DATA) &&
+ (bus_width == MMC_BUS_WIDTH_8)) {
ctrl &= ~SDHCI_CTRL_4BITBUS;
ctrl |= SDHCI_CTRL_8BITBUS;
} else {
@@ -164,7 +147,7 @@ static int tegra_sdhci_buswidth(struct sdhci_host *host, int bus_width)
return 0;
}
-static struct sdhci_ops tegra_sdhci_ops = {
+static const struct sdhci_ops tegra_sdhci_ops = {
.get_ro = tegra_sdhci_get_ro,
.read_l = tegra_sdhci_readl,
.read_w = tegra_sdhci_readw,
@@ -173,8 +156,7 @@ static struct sdhci_ops tegra_sdhci_ops = {
.platform_reset_exit = tegra_sdhci_reset_exit,
};
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
-static struct sdhci_pltfm_data sdhci_tegra20_pdata = {
+static const struct sdhci_pltfm_data sdhci_tegra20_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
SDHCI_QUIRK_NO_HISPD_BIT |
@@ -187,10 +169,8 @@ static struct sdhci_tegra_soc_data soc_data_tegra20 = {
.nvquirks = NVQUIRK_FORCE_SDHCI_SPEC_200 |
NVQUIRK_ENABLE_BLOCK_GAP_DET,
};
-#endif
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
-static struct sdhci_pltfm_data sdhci_tegra30_pdata = {
+static const struct sdhci_pltfm_data sdhci_tegra30_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
SDHCI_QUIRK_SINGLE_POWER_WRITE |
@@ -203,32 +183,37 @@ static struct sdhci_tegra_soc_data soc_data_tegra30 = {
.pdata = &sdhci_tegra30_pdata,
.nvquirks = NVQUIRK_ENABLE_SDHCI_SPEC_300,
};
-#endif
+
+static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
+ .quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
+ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_SINGLE_POWER_WRITE |
+ SDHCI_QUIRK_NO_HISPD_BIT |
+ SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC,
+ .ops = &tegra_sdhci_ops,
+};
+
+static struct sdhci_tegra_soc_data soc_data_tegra114 = {
+ .pdata = &sdhci_tegra114_pdata,
+};
static const struct of_device_id sdhci_tegra_dt_match[] = {
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+ { .compatible = "nvidia,tegra114-sdhci", .data = &soc_data_tegra114 },
{ .compatible = "nvidia,tegra30-sdhci", .data = &soc_data_tegra30 },
-#endif
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
{ .compatible = "nvidia,tegra20-sdhci", .data = &soc_data_tegra20 },
-#endif
{}
};
-MODULE_DEVICE_TABLE(of, sdhci_dt_ids);
+MODULE_DEVICE_TABLE(of, sdhci_tegra_dt_match);
-static void sdhci_tegra_parse_dt(struct device *dev,
- struct sdhci_tegra *tegra_host)
+static void sdhci_tegra_parse_dt(struct device *dev)
{
struct device_node *np = dev->of_node;
- u32 bus_width;
+ struct sdhci_host *host = dev_get_drvdata(dev);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_tegra *tegra_host = pltfm_host->priv;
- tegra_host->cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
- tegra_host->wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
tegra_host->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
-
- if (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
- bus_width == 8)
- tegra_host->is_8bit = 1;
+ mmc_of_parse(host->mmc);
}
static int sdhci_tegra_probe(struct platform_device *pdev)
@@ -260,7 +245,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
tegra_host->soc_data = soc_data;
pltfm_host->priv = tegra_host;
- sdhci_tegra_parse_dt(&pdev->dev, tegra_host);
+ sdhci_tegra_parse_dt(&pdev->dev);
if (gpio_is_valid(tegra_host->power_gpio)) {
rc = gpio_request(tegra_host->power_gpio, "sdhci_power");
@@ -272,37 +257,6 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
gpio_direction_output(tegra_host->power_gpio, 1);
}
- if (gpio_is_valid(tegra_host->cd_gpio)) {
- rc = gpio_request(tegra_host->cd_gpio, "sdhci_cd");
- if (rc) {
- dev_err(mmc_dev(host->mmc),
- "failed to allocate cd gpio\n");
- goto err_cd_req;
- }
- gpio_direction_input(tegra_host->cd_gpio);
-
- rc = request_irq(gpio_to_irq(tegra_host->cd_gpio),
- carddetect_irq,
- IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
- mmc_hostname(host->mmc), host);
-
- if (rc) {
- dev_err(mmc_dev(host->mmc), "request irq error\n");
- goto err_cd_irq_req;
- }
-
- }
-
- if (gpio_is_valid(tegra_host->wp_gpio)) {
- rc = gpio_request(tegra_host->wp_gpio, "sdhci_wp");
- if (rc) {
- dev_err(mmc_dev(host->mmc),
- "failed to allocate wp gpio\n");
- goto err_wp_req;
- }
- gpio_direction_input(tegra_host->wp_gpio);
- }
-
clk = clk_get(mmc_dev(host->mmc), NULL);
if (IS_ERR(clk)) {
dev_err(mmc_dev(host->mmc), "clk err\n");
@@ -312,9 +266,6 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
clk_prepare_enable(clk);
pltfm_host->clk = clk;
- if (tegra_host->is_8bit)
- host->mmc->caps |= MMC_CAP_8_BIT_DATA;
-
rc = sdhci_add_host(host);
if (rc)
goto err_add_host;
@@ -325,15 +276,6 @@ err_add_host:
clk_disable_unprepare(pltfm_host->clk);
clk_put(pltfm_host->clk);
err_clk_get:
- if (gpio_is_valid(tegra_host->wp_gpio))
- gpio_free(tegra_host->wp_gpio);
-err_wp_req:
- if (gpio_is_valid(tegra_host->cd_gpio))
- free_irq(gpio_to_irq(tegra_host->cd_gpio), host);
-err_cd_irq_req:
- if (gpio_is_valid(tegra_host->cd_gpio))
- gpio_free(tegra_host->cd_gpio);
-err_cd_req:
if (gpio_is_valid(tegra_host->power_gpio))
gpio_free(tegra_host->power_gpio);
err_power_req:
@@ -351,14 +293,6 @@ static int sdhci_tegra_remove(struct platform_device *pdev)
sdhci_remove_host(host, dead);
- if (gpio_is_valid(tegra_host->wp_gpio))
- gpio_free(tegra_host->wp_gpio);
-
- if (gpio_is_valid(tegra_host->cd_gpio)) {
- free_irq(gpio_to_irq(tegra_host->cd_gpio), host);
- gpio_free(tegra_host->cd_gpio);
- }
-
if (gpio_is_valid(tegra_host->power_gpio))
gpio_free(tegra_host->power_gpio);
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 51bbba486f3..2ea429c2771 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1581,6 +1581,37 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
sdhci_runtime_pm_put(host);
}
+static int sdhci_do_get_cd(struct sdhci_host *host)
+{
+ int gpio_cd = mmc_gpio_get_cd(host->mmc);
+
+ if (host->flags & SDHCI_DEVICE_DEAD)
+ return 0;
+
+ /* If polling/nonremovable, assume that the card is always present. */
+ if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) ||
+ (host->mmc->caps & MMC_CAP_NONREMOVABLE))
+ return 1;
+
+ /* Try slot gpio detect */
+ if (!IS_ERR_VALUE(gpio_cd))
+ return !!gpio_cd;
+
+ /* Host native card detect */
+ return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
+}
+
+static int sdhci_get_cd(struct mmc_host *mmc)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+ int ret;
+
+ sdhci_runtime_pm_get(host);
+ ret = sdhci_do_get_cd(host);
+ sdhci_runtime_pm_put(host);
+ return ret;
+}
+
static int sdhci_check_ro(struct sdhci_host *host)
{
unsigned long flags;
@@ -2038,6 +2069,7 @@ static void sdhci_card_event(struct mmc_host *mmc)
static const struct mmc_host_ops sdhci_ops = {
.request = sdhci_request,
.set_ios = sdhci_set_ios,
+ .get_cd = sdhci_get_cd,
.get_ro = sdhci_get_ro,
.hw_reset = sdhci_hw_reset,
.enable_sdio_irq = sdhci_enable_sdio_irq,
@@ -2907,12 +2939,17 @@ int sdhci_add_host(struct sdhci_host *host)
host->vqmmc = NULL;
}
} else {
- regulator_enable(host->vqmmc);
+ ret = regulator_enable(host->vqmmc);
if (!regulator_is_supported_voltage(host->vqmmc, 1700000,
1950000))
caps[1] &= ~(SDHCI_SUPPORT_SDR104 |
SDHCI_SUPPORT_SDR50 |
SDHCI_SUPPORT_DDR50);
+ if (ret) {
+ pr_warn("%s: Failed to enable vqmmc regulator: %d\n",
+ mmc_hostname(mmc), ret);
+ host->vqmmc = NULL;
+ }
}
if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V)
diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index c6d001509e5..442f5766ffc 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -348,13 +348,11 @@ static void wmt_complete_data_request(struct wmt_mci_priv *priv)
static irqreturn_t wmt_mci_dma_isr(int irq_num, void *data)
{
- struct mmc_host *mmc;
struct wmt_mci_priv *priv;
int status;
priv = (struct wmt_mci_priv *)data;
- mmc = priv->mmc;
status = readl(priv->sdmmc_base + SDDMA_CCR) & 0x0F;
@@ -925,7 +923,7 @@ static int wmt_mci_remove(struct platform_device *pdev)
clk_put(priv->clk_sdmmc);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
mmc_free_host(mmc);