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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-10 20:16:00 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-10 20:16:00 +0200
commitbfffbea1aaeeb1eb6500c83ff9653416daa5b490 (patch)
tree1325ecb176b7a3d04924d6a1563b15ad6085d36a /drivers/mmc/host
parentMerge tag 'for-3.11-rc1' of git://gitorious.org/linux-pwm/linux-pwm (diff)
parentmmc: bcm281xx SDHCI driver (diff)
downloadlinux-bfffbea1aaeeb1eb6500c83ff9653416daa5b490.tar.xz
linux-bfffbea1aaeeb1eb6500c83ff9653416daa5b490.zip
Merge tag 'mmc-updates-for-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball: "MMC highlights for 3.11: Core: - Add support for eMMC 5.1 devices - Add MMC_CAP_AGGRESSIVE_PM capability for aggressive power management of eMMC/SD between requests, using runtime PM - Add an ioctl to perform the eMMC 4.5 Sanitize command. Sample code at: git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git Drivers: - dw_mmc: Add support for Rockchip's Cortex-A9 SoCs - dw_mmc: Add support for Altera SoCFPGAs - sdhci-esdhc-imx: Add support for 8-bit bus width, non-removable cards - sdhci-bcm-kona: New driver for Broadcom Kona (281xx) SoCs - sdhi/tmio: Add DT DMA support" * tag 'mmc-updates-for-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (87 commits) mmc: bcm281xx SDHCI driver mmc: sdhci: add card_event callback to sdhci mmc: core: Fixup Oops for SDIO shutdown mmc: sdhci-pci: add another device id mmc: esdhc: Fix bug when writing to SDHCI_HOST_CONTROL register mmc: esdhc: Add support for 8-bit bus width and non-removable card mmc: core: production year for eMMC 4.41 and later mmc: omap: remove unnecessary #if 0's mmc: sdhci: fix ctrl_2 on super-speed selection mmc: dw_mmc-pltfm: add Rockchip variant mmc: dw_mmc-pltfm: move probe and remove below dt match table mmc: dw_mmc-pltfm: remove static from dw_mci_pltfm_remove mmc: sdhci-acpi: add support for eMMC hardware reset for HID 80860F14 mmc: sdhci-pci: add support for eMMC hardware reset for BYT eMMC. mmc: dw_mmc: Add support DW SD/MMC driver on SOCFPGA mmc: sdhci: fix caps2 for HS200 sdhci-pxav3: Fix runtime PM initialization mmc: core: Add DT-bindings for MMC_CAP2_FULL_PWR_CYCLE mmc: core: Invent MMC_CAP2_FULL_PWR_CYCLE mmc: core: Enable power_off_notify for eMMC shutdown sequence ...
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r--drivers/mmc/host/Kconfig19
-rw-r--r--drivers/mmc/host/Makefile2
-rw-r--r--drivers/mmc/host/android-goldfish.c2
-rw-r--r--drivers/mmc/host/atmel-mci.c14
-rw-r--r--drivers/mmc/host/au1xmmc.c1
-rw-r--r--drivers/mmc/host/bfin_sdh.c2
-rw-r--r--drivers/mmc/host/cb710-mmc.c2
-rw-r--r--drivers/mmc/host/cb710-mmc.h2
-rw-r--r--drivers/mmc/host/davinci_mmc.c1
-rw-r--r--drivers/mmc/host/dw_mmc-exynos.c2
-rw-r--r--drivers/mmc/host/dw_mmc-pci.c58
-rw-r--r--drivers/mmc/host/dw_mmc-pltfm.c73
-rw-r--r--drivers/mmc/host/dw_mmc-socfpga.c140
-rw-r--r--drivers/mmc/host/dw_mmc.c65
-rw-r--r--drivers/mmc/host/dw_mmc.h3
-rw-r--r--drivers/mmc/host/jz4740_mmc.c180
-rw-r--r--drivers/mmc/host/mvsdio.c74
-rw-r--r--drivers/mmc/host/mxcmmc.c6
-rw-r--r--drivers/mmc/host/mxs-mmc.c11
-rw-r--r--drivers/mmc/host/omap.c18
-rw-r--r--drivers/mmc/host/omap_hsmmc.c2
-rw-r--r--drivers/mmc/host/pxamci.c2
-rw-r--r--drivers/mmc/host/rtsx_pci_sdmmc.c2
-rw-r--r--drivers/mmc/host/sdhci-acpi.c96
-rw-r--r--drivers/mmc/host/sdhci-bcm-kona.c348
-rw-r--r--drivers/mmc/host/sdhci-bcm2835.c2
-rw-r--r--drivers/mmc/host/sdhci-cns3xxx.c2
-rw-r--r--drivers/mmc/host/sdhci-dove.c2
-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c30
-rw-r--r--drivers/mmc/host/sdhci-esdhc.h16
-rw-r--r--drivers/mmc/host/sdhci-of-esdhc.c63
-rw-r--r--drivers/mmc/host/sdhci-of-hlwd.c2
-rw-r--r--drivers/mmc/host/sdhci-pci.c43
-rw-r--r--drivers/mmc/host/sdhci-pltfm.c23
-rw-r--r--drivers/mmc/host/sdhci-pltfm.h14
-rw-r--r--drivers/mmc/host/sdhci-pxav2.c4
-rw-r--r--drivers/mmc/host/sdhci-pxav3.c18
-rw-r--r--drivers/mmc/host/sdhci-s3c.c1
-rw-r--r--drivers/mmc/host/sdhci-sirf.c59
-rw-r--r--drivers/mmc/host/sdhci-spear.c2
-rw-r--r--drivers/mmc/host/sdhci-tegra.c11
-rw-r--r--drivers/mmc/host/sdhci.c63
-rw-r--r--drivers/mmc/host/sdhci.h1
-rw-r--r--drivers/mmc/host/sh_mmcif.c12
-rw-r--r--drivers/mmc/host/sh_mobile_sdhi.c34
-rw-r--r--drivers/mmc/host/tmio_mmc.c2
-rw-r--r--drivers/mmc/host/tmio_mmc.h21
-rw-r--r--drivers/mmc/host/tmio_mmc_dma.c48
-rw-r--r--drivers/mmc/host/tmio_mmc_pio.c40
-rw-r--r--drivers/mmc/host/wmt-sdmmc.c2
50 files changed, 1168 insertions, 472 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 9ab8f8dee942..8a4c066787d7 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -249,6 +249,17 @@ config MMC_SDHCI_S3C_DMA
YMMV.
+config MMC_SDHCI_BCM_KONA
+ tristate "SDHCI support on Broadcom KONA platform"
+ depends on ARCH_BCM
+ select MMC_SDHCI_PLTFM
+ help
+ This selects the Broadcom Kona Secure Digital Host Controller
+ Interface(SDHCI) support.
+ This is used in Broadcom mobile SoCs.
+
+ If you have a controller with this interface, say Y or M here.
+
config MMC_SDHCI_BCM2835
tristate "SDHCI platform support for the BCM2835 SD/MMC Controller"
depends on ARCH_BCM2835
@@ -556,6 +567,14 @@ config MMC_DW_EXYNOS
Synopsys DesignWare Memory Card Interface driver. Select this option
for platforms based on Exynos4 and Exynos5 SoC's.
+config MMC_DW_SOCFPGA
+ tristate "SOCFPGA specific extensions for Synopsys DW Memory Card Interface"
+ depends on MMC_DW
+ select MMC_DW_PLTFM
+ help
+ This selects support for Altera SoCFPGA specific extensions to the
+ Synopsys DesignWare Memory Card Interface driver.
+
config MMC_DW_PCI
tristate "Synopsys Designware MCI support on PCI bus"
depends on MMC_DW && PCI
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index cd3228075553..d422e2167e19 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o
obj-$(CONFIG_MMC_DW) += dw_mmc.o
obj-$(CONFIG_MMC_DW_PLTFM) += dw_mmc-pltfm.o
obj-$(CONFIG_MMC_DW_EXYNOS) += dw_mmc-exynos.o
+obj-$(CONFIG_MMC_DW_SOCFPGA) += dw_mmc-socfpga.o
obj-$(CONFIG_MMC_DW_PCI) += dw_mmc-pci.o
obj-$(CONFIG_MMC_SH_MMCIF) += sh_mmcif.o
obj-$(CONFIG_MMC_JZ4740) += jz4740_mmc.o
@@ -60,6 +61,7 @@ obj-$(CONFIG_MMC_SDHCI_DOVE) += sdhci-dove.o
obj-$(CONFIG_MMC_SDHCI_TEGRA) += sdhci-tegra.o
obj-$(CONFIG_MMC_SDHCI_OF_ESDHC) += sdhci-of-esdhc.o
obj-$(CONFIG_MMC_SDHCI_OF_HLWD) += sdhci-of-hlwd.o
+obj-$(CONFIG_MMC_SDHCI_BCM_KONA) += sdhci-bcm-kona.o
obj-$(CONFIG_MMC_SDHCI_BCM2835) += sdhci-bcm2835.o
ifeq ($(CONFIG_CB710_DEBUG),y)
diff --git a/drivers/mmc/host/android-goldfish.c b/drivers/mmc/host/android-goldfish.c
index 7780c14704c4..8b4e20a3f16c 100644
--- a/drivers/mmc/host/android-goldfish.c
+++ b/drivers/mmc/host/android-goldfish.c
@@ -546,8 +546,6 @@ static int goldfish_mmc_remove(struct platform_device *pdev)
{
struct goldfish_mmc_host *host = platform_get_drvdata(pdev);
- platform_set_drvdata(pdev, NULL);
-
BUG_ON(host == NULL);
mmc_remove_host(host->mmc);
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index aca59d93d5a9..bdb84da74952 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -40,8 +40,6 @@
#include <asm/io.h>
#include <asm/unaligned.h>
-#include <mach/cpu.h>
-
#include "atmel-mci-regs.h"
#define ATMCI_DATA_ERROR_FLAGS (ATMCI_DCRCE | ATMCI_DTOE | ATMCI_OVRE | ATMCI_UNRE)
@@ -2475,8 +2473,6 @@ static int __exit atmci_remove(struct platform_device *pdev)
struct atmel_mci *host = platform_get_drvdata(pdev);
unsigned int i;
- platform_set_drvdata(pdev, NULL);
-
if (host->buffer)
dma_free_coherent(&pdev->dev, host->buf_size,
host->buffer, host->buf_phys_addr);
@@ -2504,7 +2500,7 @@ static int __exit atmci_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int atmci_suspend(struct device *dev)
{
struct atmel_mci *host = dev_get_drvdata(dev);
@@ -2559,17 +2555,15 @@ static int atmci_resume(struct device *dev)
return ret;
}
-static SIMPLE_DEV_PM_OPS(atmci_pm, atmci_suspend, atmci_resume);
-#define ATMCI_PM_OPS (&atmci_pm)
-#else
-#define ATMCI_PM_OPS NULL
#endif
+static SIMPLE_DEV_PM_OPS(atmci_pm, atmci_suspend, atmci_resume);
+
static struct platform_driver atmci_driver = {
.remove = __exit_p(atmci_remove),
.driver = {
.name = "atmel_mci",
- .pm = ATMCI_PM_OPS,
+ .pm = &atmci_pm,
.of_match_table = of_match_ptr(atmci_dt_ids),
},
};
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index 127a8fade4da..df9becdd2e99 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -1149,7 +1149,6 @@ static int au1xmmc_remove(struct platform_device *pdev)
kfree(host->ioarea);
mmc_free_host(host->mmc);
- platform_set_drvdata(pdev, NULL);
}
return 0;
}
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index fb4348c5b6ac..94fae2f1baaf 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -621,8 +621,6 @@ static int sdh_remove(struct platform_device *pdev)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
- platform_set_drvdata(pdev, NULL);
-
if (mmc) {
struct sdh_host *host = mmc_priv(mmc);
diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index 777ca2046b27..9d6e2b844404 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -703,7 +703,7 @@ static int cb710_mmc_init(struct platform_device *pdev)
if (!mmc)
return -ENOMEM;
- dev_set_drvdata(&pdev->dev, mmc);
+ platform_set_drvdata(pdev, mmc);
/* harmless (maybe) magic */
pci_read_config_dword(chip->pdev, 0x48, &val);
diff --git a/drivers/mmc/host/cb710-mmc.h b/drivers/mmc/host/cb710-mmc.h
index e845c776bdd7..8984ec878fc9 100644
--- a/drivers/mmc/host/cb710-mmc.h
+++ b/drivers/mmc/host/cb710-mmc.h
@@ -24,7 +24,7 @@ struct cb710_mmc_reader {
static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
{
- return dev_get_drvdata(&slot->pdev.dev);
+ return platform_get_drvdata(&slot->pdev);
}
static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 5dfb70c669dc..e9fa87df909c 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -1407,7 +1407,6 @@ static int __exit davinci_mmcsd_remove(struct platform_device *pdev)
{
struct mmc_davinci_host *host = platform_get_drvdata(pdev);
- platform_set_drvdata(pdev, NULL);
if (host) {
mmc_davinci_cpufreq_deregister(host);
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index f013e7e3746b..866edef2e820 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -31,8 +31,6 @@
SDMMC_CLKSEL_CCLK_DRIVE(y) | \
SDMMC_CLKSEL_CCLK_DIVIDER(z))
-#define SDMMC_CMD_USE_HOLD_REG BIT(29)
-
#define EXYNOS4210_FIXED_CIU_CLK_DIV 2
#define EXYNOS4412_FIXED_CIU_CLK_DIV 4
diff --git a/drivers/mmc/host/dw_mmc-pci.c b/drivers/mmc/host/dw_mmc-pci.c
index 083fcd29c9c6..b456b0c35231 100644
--- a/drivers/mmc/host/dw_mmc-pci.c
+++ b/drivers/mmc/host/dw_mmc-pci.c
@@ -21,7 +21,6 @@
#include "dw_mmc.h"
#define PCI_BAR_NO 2
-#define COMPLETE_BAR 0
#define SYNOPSYS_DW_MCI_VENDOR_ID 0x700
#define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107
/* Defining the Capabilities */
@@ -38,51 +37,37 @@ static struct dw_mci_board pci_board_data = {
};
static int dw_mci_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *entries)
+ const struct pci_device_id *entries)
{
struct dw_mci *host;
int ret;
- ret = pci_enable_device(pdev);
+ ret = pcim_enable_device(pdev);
if (ret)
return ret;
- if (pci_request_regions(pdev, "dw_mmc_pci")) {
- ret = -ENODEV;
- goto err_disable_dev;
- }
- host = kzalloc(sizeof(struct dw_mci), GFP_KERNEL);
- if (!host) {
- ret = -ENOMEM;
- goto err_release;
- }
+ host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
+ if (!host)
+ return -ENOMEM;
host->irq = pdev->irq;
host->irq_flags = IRQF_SHARED;
host->dev = &pdev->dev;
host->pdata = &pci_board_data;
- host->regs = pci_iomap(pdev, PCI_BAR_NO, COMPLETE_BAR);
- if (!host->regs) {
- ret = -EIO;
- goto err_unmap;
- }
+ ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev));
+ if (ret)
+ return ret;
+
+ host->regs = pcim_iomap_table(pdev)[0];
- pci_set_drvdata(pdev, host);
ret = dw_mci_probe(host);
if (ret)
- goto err_probe_failed;
- return ret;
-
-err_probe_failed:
- pci_iounmap(pdev, host->regs);
-err_unmap:
- kfree(host);
-err_release:
- pci_release_regions(pdev);
-err_disable_dev:
- pci_disable_device(pdev);
- return ret;
+ return ret;
+
+ pci_set_drvdata(pdev, host);
+
+ return 0;
}
static void dw_mci_pci_remove(struct pci_dev *pdev)
@@ -90,32 +75,23 @@ static void dw_mci_pci_remove(struct pci_dev *pdev)
struct dw_mci *host = pci_get_drvdata(pdev);
dw_mci_remove(host);
- pci_set_drvdata(pdev, NULL);
- pci_release_regions(pdev);
- pci_iounmap(pdev, host->regs);
- kfree(host);
- pci_disable_device(pdev);
}
#ifdef CONFIG_PM_SLEEP
static int dw_mci_pci_suspend(struct device *dev)
{
- int ret;
struct pci_dev *pdev = to_pci_dev(dev);
struct dw_mci *host = pci_get_drvdata(pdev);
- ret = dw_mci_suspend(host);
- return ret;
+ return dw_mci_suspend(host);
}
static int dw_mci_pci_resume(struct device *dev)
{
- int ret;
struct pci_dev *pdev = to_pci_dev(dev);
struct dw_mci *host = pci_get_drvdata(pdev);
- ret = dw_mci_resume(host);
- return ret;
+ return dw_mci_resume(host);
}
#else
#define dw_mci_pci_suspend NULL
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index 41c27b74b003..ee525565aa77 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -24,8 +24,17 @@
#include "dw_mmc.h"
+static void dw_mci_rockchip_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_rockchip_prepare_command,
+};
+
int dw_mci_pltfm_register(struct platform_device *pdev,
- const struct dw_mci_drv_data *drv_data)
+ const struct dw_mci_drv_data *drv_data)
{
struct dw_mci *host;
struct resource *regs;
@@ -35,10 +44,6 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
if (!host)
return -ENOMEM;
- regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!regs)
- return -ENXIO;
-
host->irq = platform_get_irq(pdev, 0);
if (host->irq < 0)
return host->irq;
@@ -47,6 +52,8 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
host->dev = &pdev->dev;
host->irq_flags = 0;
host->pdata = pdev->dev.platform_data;
+
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
host->regs = devm_ioremap_resource(&pdev->dev, regs);
if (IS_ERR(host->regs))
return PTR_ERR(host->regs);
@@ -58,52 +65,26 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
}
platform_set_drvdata(pdev, host);
- ret = dw_mci_probe(host);
- return ret;
+ return dw_mci_probe(host);
}
EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
-static int dw_mci_pltfm_probe(struct platform_device *pdev)
-{
- return dw_mci_pltfm_register(pdev, NULL);
-}
-
-static int dw_mci_pltfm_remove(struct platform_device *pdev)
-{
- struct dw_mci *host = platform_get_drvdata(pdev);
-
- platform_set_drvdata(pdev, NULL);
- dw_mci_remove(host);
- return 0;
-}
-EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
-
#ifdef CONFIG_PM_SLEEP
/*
* TODO: we should probably disable the clock to the card in the suspend path.
*/
static int dw_mci_pltfm_suspend(struct device *dev)
{
- int ret;
struct dw_mci *host = dev_get_drvdata(dev);
- ret = dw_mci_suspend(host);
- if (ret)
- return ret;
-
- return 0;
+ return dw_mci_suspend(host);
}
static int dw_mci_pltfm_resume(struct device *dev)
{
- int ret;
struct dw_mci *host = dev_get_drvdata(dev);
- ret = dw_mci_resume(host);
- if (ret)
- return ret;
-
- return 0;
+ return dw_mci_resume(host);
}
#else
#define dw_mci_pltfm_suspend NULL
@@ -115,10 +96,34 @@ 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 },
{},
};
MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
+static int dw_mci_pltfm_probe(struct platform_device *pdev)
+{
+ const struct dw_mci_drv_data *drv_data = NULL;
+ const struct of_device_id *match;
+
+ if (pdev->dev.of_node) {
+ match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
+ drv_data = match->data;
+ }
+
+ return dw_mci_pltfm_register(pdev, drv_data);
+}
+
+int dw_mci_pltfm_remove(struct platform_device *pdev)
+{
+ struct dw_mci *host = platform_get_drvdata(pdev);
+
+ dw_mci_remove(host);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
+
static struct platform_driver dw_mci_pltfm_driver = {
.probe = dw_mci_pltfm_probe,
.remove = dw_mci_pltfm_remove,
diff --git a/drivers/mmc/host/dw_mmc-socfpga.c b/drivers/mmc/host/dw_mmc-socfpga.c
new file mode 100644
index 000000000000..14b5961a851c
--- /dev/null
+++ b/drivers/mmc/host/dw_mmc-socfpga.c
@@ -0,0 +1,140 @@
+/*
+ * Altera SoCFPGA Specific Extensions for Synopsys DW Multimedia Card Interface
+ * driver
+ *
+ * Copyright (C) 2012, Samsung Electronics Co., Ltd.
+ * Copyright (C) 2013 Altera Corporation
+ *
+ * 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.
+ *
+ * Taken from dw_mmc-exynos.c
+ */
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/dw_mmc.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include "dw_mmc.h"
+#include "dw_mmc-pltfm.h"
+
+#define SYSMGR_SDMMCGRP_CTRL_OFFSET 0x108
+#define DRV_CLK_PHASE_SHIFT_SEL_MASK 0x7
+#define SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel) \
+ ((((smplsel) & 0x7) << 3) | (((drvsel) & 0x7) << 0))
+
+/* SOCFPGA implementation specific driver private data */
+struct dw_mci_socfpga_priv_data {
+ u8 ciu_div; /* card interface unit divisor */
+ u32 hs_timing; /* bitmask for CIU clock phase shift */
+ struct regmap *sysreg; /* regmap for system manager register */
+};
+
+static int dw_mci_socfpga_priv_init(struct dw_mci *host)
+{
+ struct dw_mci_socfpga_priv_data *priv;
+
+ priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ dev_err(host->dev, "mem alloc failed for private data\n");
+ return -ENOMEM;
+ }
+
+ priv->sysreg = syscon_regmap_lookup_by_compatible("altr,sys-mgr");
+ if (IS_ERR(priv->sysreg)) {
+ dev_err(host->dev, "regmap for altr,sys-mgr lookup failed.\n");
+ return PTR_ERR(priv->sysreg);
+ }
+ host->priv = priv;
+
+ return 0;
+}
+
+static int dw_mci_socfpga_setup_clock(struct dw_mci *host)
+{
+ struct dw_mci_socfpga_priv_data *priv = host->priv;
+
+ clk_disable_unprepare(host->ciu_clk);
+ regmap_write(priv->sysreg, SYSMGR_SDMMCGRP_CTRL_OFFSET,
+ priv->hs_timing);
+ clk_prepare_enable(host->ciu_clk);
+
+ host->bus_hz /= (priv->ciu_div + 1);
+ return 0;
+}
+
+static void dw_mci_socfpga_prepare_command(struct dw_mci *host, u32 *cmdr)
+{
+ struct dw_mci_socfpga_priv_data *priv = host->priv;
+
+ if (priv->hs_timing & DRV_CLK_PHASE_SHIFT_SEL_MASK)
+ *cmdr |= SDMMC_CMD_USE_HOLD_REG;
+}
+
+static int dw_mci_socfpga_parse_dt(struct dw_mci *host)
+{
+ struct dw_mci_socfpga_priv_data *priv = host->priv;
+ struct device_node *np = host->dev->of_node;
+ u32 timing[2];
+ u32 div = 0;
+ int ret;
+
+ ret = of_property_read_u32(np, "altr,dw-mshc-ciu-div", &div);
+ if (ret)
+ dev_info(host->dev, "No dw-mshc-ciu-div specified, assuming 1");
+ priv->ciu_div = div;
+
+ ret = of_property_read_u32_array(np,
+ "altr,dw-mshc-sdr-timing", timing, 2);
+ if (ret)
+ return ret;
+
+ priv->hs_timing = SYSMGR_SDMMC_CTRL_SET(timing[0], timing[1]);
+ return 0;
+}
+
+static const struct dw_mci_drv_data socfpga_drv_data = {
+ .init = dw_mci_socfpga_priv_init,
+ .setup_clock = dw_mci_socfpga_setup_clock,
+ .prepare_command = dw_mci_socfpga_prepare_command,
+ .parse_dt = dw_mci_socfpga_parse_dt,
+};
+
+static const struct of_device_id dw_mci_socfpga_match[] = {
+ { .compatible = "altr,socfpga-dw-mshc",
+ .data = &socfpga_drv_data, },
+ {},
+};
+MODULE_DEVICE_TABLE(of, dw_mci_socfpga_match);
+
+int dw_mci_socfpga_probe(struct platform_device *pdev)
+{
+ const struct dw_mci_drv_data *drv_data;
+ const struct of_device_id *match;
+
+ match = of_match_node(dw_mci_socfpga_match, pdev->dev.of_node);
+ drv_data = match->data;
+ return dw_mci_pltfm_register(pdev, drv_data);
+}
+
+static struct platform_driver dw_mci_socfpga_pltfm_driver = {
+ .probe = dw_mci_socfpga_probe,
+ .remove = __exit_p(dw_mci_pltfm_remove),
+ .driver = {
+ .name = "dwmmc_socfpga",
+ .of_match_table = of_match_ptr(dw_mci_socfpga_match),
+ .pm = &dw_mci_pltfm_pmops,
+ },
+};
+
+module_platform_driver(dw_mci_socfpga_pltfm_driver);
+
+MODULE_DESCRIPTION("Altera SOCFPGA Specific DW-MSHC Driver Extension");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:dwmmc-socfpga");
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index bc3a1bc4940f..ee5f1676f14e 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -39,7 +39,7 @@
#include "dw_mmc.h"
/* Common flag combinations */
-#define DW_MCI_DATA_ERROR_FLAGS (SDMMC_INT_DTO | SDMMC_INT_DCRC | \
+#define DW_MCI_DATA_ERROR_FLAGS (SDMMC_INT_DRTO | SDMMC_INT_DCRC | \
SDMMC_INT_HTO | SDMMC_INT_SBE | \
SDMMC_INT_EBE)
#define DW_MCI_CMD_ERROR_FLAGS (SDMMC_INT_RTO | SDMMC_INT_RCRC | \
@@ -51,6 +51,11 @@
#define DW_MCI_DMA_THRESHOLD 16
#ifdef CONFIG_MMC_DW_IDMAC
+#define IDMAC_INT_CLR (SDMMC_IDMAC_INT_AI | SDMMC_IDMAC_INT_NI | \
+ SDMMC_IDMAC_INT_CES | SDMMC_IDMAC_INT_DU | \
+ SDMMC_IDMAC_INT_FBE | SDMMC_IDMAC_INT_RI | \
+ SDMMC_IDMAC_INT_TI)
+
struct idmac_desc {
u32 des0; /* Control Descriptor */
#define IDMAC_DES0_DIC BIT(1)
@@ -433,6 +438,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
mci_writel(host, BMOD, SDMMC_IDMAC_SWRESET);
/* Mask out interrupts - get Tx & Rx complete only */
+ mci_writel(host, IDSTS, IDMAC_INT_CLR);
mci_writel(host, IDINTEN, SDMMC_IDMAC_INT_NI | SDMMC_IDMAC_INT_RI |
SDMMC_IDMAC_INT_TI);
@@ -1087,7 +1093,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
status = host->data_status;
if (status & DW_MCI_DATA_ERROR_FLAGS) {
- if (status & SDMMC_INT_DTO) {
+ if (status & SDMMC_INT_DRTO) {
data->error = -ETIMEDOUT;
} else if (status & SDMMC_INT_DCRC) {
data->error = -EILSEQ;
@@ -1985,19 +1991,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
#endif /* CONFIG_MMC_DW_IDMAC */
}
- host->vmmc = devm_regulator_get(mmc_dev(mmc), "vmmc");
- if (IS_ERR(host->vmmc)) {
- pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc));
- host->vmmc = NULL;
- } 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);
else
@@ -2124,6 +2117,7 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
struct device_node *np = dev->of_node;
const struct dw_mci_drv_data *drv_data = host->drv_data;
int idx, ret;
+ u32 clock_frequency;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
@@ -2150,6 +2144,9 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms);
+ if (!of_property_read_u32(np, "clock-frequency", &clock_frequency))
+ pdata->bus_hz = clock_frequency;
+
if (drv_data && drv_data->parse_dt) {
ret = drv_data->parse_dt(host);
if (ret)
@@ -2207,18 +2204,23 @@ int dw_mci_probe(struct dw_mci *host)
host->ciu_clk = devm_clk_get(host->dev, "ciu");
if (IS_ERR(host->ciu_clk)) {
dev_dbg(host->dev, "ciu clock not available\n");
+ host->bus_hz = host->pdata->bus_hz;
} else {
ret = clk_prepare_enable(host->ciu_clk);
if (ret) {
dev_err(host->dev, "failed to enable ciu clock\n");
goto err_clk_biu;
}
- }
- if (IS_ERR(host->ciu_clk))
- host->bus_hz = host->pdata->bus_hz;
- else
+ if (host->pdata->bus_hz) {
+ ret = clk_set_rate(host->ciu_clk, host->pdata->bus_hz);
+ if (ret)
+ dev_warn(host->dev,
+ "Unable to set bus rate to %ul\n",
+ host->pdata->bus_hz);
+ }
host->bus_hz = clk_get_rate(host->ciu_clk);
+ }
if (drv_data && drv_data->setup_clock) {
ret = drv_data->setup_clock(host);
@@ -2229,11 +2231,29 @@ int dw_mci_probe(struct dw_mci *host)
}
}
+ host->vmmc = devm_regulator_get(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;
+ }
+ }
+
if (!host->bus_hz) {
dev_err(host->dev,
"Platform data must supply bus speed\n");
ret = -ENODEV;
- goto err_clk_ciu;
+ goto err_regulator;
}
host->quirks = host->pdata->quirks;
@@ -2321,8 +2341,10 @@ int dw_mci_probe(struct dw_mci *host)
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);
- if (!host->card_workqueue)
+ if (!host->card_workqueue) {
+ ret = -ENOMEM;
goto err_dmaunmap;
+ }
INIT_WORK(&host->card_work, dw_mci_work_routine_card);
ret = devm_request_irq(host->dev, host->irq, dw_mci_interrupt,
host->irq_flags, "dw-mci", host);
@@ -2378,6 +2400,7 @@ err_dmaunmap:
if (host->use_dma && host->dma_ops->exit)
host->dma_ops->exit(host);
+err_regulator:
if (host->vmmc)
regulator_disable(host->vmmc);
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 0b74189e7ee7..81b29941c5b9 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -98,7 +98,7 @@
#define SDMMC_INT_HLE BIT(12)
#define SDMMC_INT_FRUN BIT(11)
#define SDMMC_INT_HTO BIT(10)
-#define SDMMC_INT_DTO BIT(9)
+#define SDMMC_INT_DRTO BIT(9)
#define SDMMC_INT_RTO BIT(8)
#define SDMMC_INT_DCRC BIT(7)
#define SDMMC_INT_RCRC BIT(6)
@@ -111,6 +111,7 @@
#define SDMMC_INT_ERROR 0xbfc2
/* Command register defines */
#define SDMMC_CMD_START BIT(31)
+#define SDMMC_CMD_USE_HOLD_REG BIT(29)
#define SDMMC_CMD_CCS_EXP BIT(23)
#define SDMMC_CMD_CEATA_RD BIT(22)
#define SDMMC_CMD_UPD_CLK BIT(21)
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 2391c6b7a4bb..0308c9f1cf52 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -14,6 +14,7 @@
*/
#include <linux/mmc/host.h>
+#include <linux/mmc/slot-gpio.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -120,7 +121,6 @@ struct jz4740_mmc_host {
int irq;
int card_detect_irq;
- struct resource *mem;
void __iomem *base;
struct mmc_request *req;
struct mmc_command *cmd;
@@ -231,6 +231,14 @@ static void jz4740_mmc_transfer_check_state(struct jz4740_mmc_host *host,
host->req->cmd->error = -EIO;
data->error = -EIO;
}
+ } else if (status & JZ_MMC_STATUS_READ_ERROR_MASK) {
+ if (status & (JZ_MMC_STATUS_TIMEOUT_READ)) {
+ host->req->cmd->error = -ETIMEDOUT;
+ data->error = -ETIMEDOUT;
+ } else {
+ host->req->cmd->error = -EIO;
+ data->error = -EIO;
+ }
}
}
@@ -560,11 +568,6 @@ static irqreturn_t jz_mmc_irq(int irq, void *devid)
if (cmd->data)
cmd->data->error = -EIO;
cmd->error = -EIO;
- } else if (status & (JZ_MMC_STATUS_CRC_READ_ERROR |
- JZ_MMC_STATUS_CRC_WRITE_ERROR)) {
- if (cmd->data)
- cmd->data->error = -EIO;
- cmd->error = -EIO;
}
jz4740_mmc_set_irq_enabled(host, irq_reg, false);
@@ -626,7 +629,7 @@ static void jz4740_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
gpio_set_value(host->pdata->gpio_power,
!host->pdata->power_active_low);
host->cmdat |= JZ_MMC_CMDAT_INIT;
- clk_enable(host->clk);
+ clk_prepare_enable(host->clk);
break;
case MMC_POWER_ON:
break;
@@ -634,7 +637,7 @@ static void jz4740_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (gpio_is_valid(host->pdata->gpio_power))
gpio_set_value(host->pdata->gpio_power,
host->pdata->power_active_low);
- clk_disable(host->clk);
+ clk_disable_unprepare(host->clk);
break;
}
@@ -650,35 +653,6 @@ static void jz4740_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
}
-static int jz4740_mmc_get_ro(struct mmc_host *mmc)
-{
- struct jz4740_mmc_host *host = mmc_priv(mmc);
- if (!gpio_is_valid(host->pdata->gpio_read_only))
- return -ENOSYS;
-
- return gpio_get_value(host->pdata->gpio_read_only) ^
- host->pdata->read_only_active_low;
-}
-
-static int jz4740_mmc_get_cd(struct mmc_host *mmc)
-{
- struct jz4740_mmc_host *host = mmc_priv(mmc);
- if (!gpio_is_valid(host->pdata->gpio_card_detect))
- return -ENOSYS;
-
- return gpio_get_value(host->pdata->gpio_card_detect) ^
- host->pdata->card_detect_active_low;
-}
-
-static irqreturn_t jz4740_mmc_card_detect_irq(int irq, void *devid)
-{
- struct jz4740_mmc_host *host = devid;
-
- mmc_detect_change(host->mmc, HZ / 2);
-
- return IRQ_HANDLED;
-}
-
static void jz4740_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
{
struct jz4740_mmc_host *host = mmc_priv(mmc);
@@ -688,8 +662,8 @@ 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,
.set_ios = jz4740_mmc_set_ios,
- .get_ro = jz4740_mmc_get_ro,
- .get_cd = jz4740_mmc_get_cd,
+ .get_ro = mmc_gpio_get_ro,
+ .get_cd = mmc_gpio_get_cd,
.enable_sdio_irq = jz4740_mmc_enable_sdio_irq,
};
@@ -724,58 +698,34 @@ static int jz4740_mmc_request_gpio(struct device *dev, int gpio,
return 0;
}
-static int jz4740_mmc_request_gpios(struct platform_device *pdev)
+static int jz4740_mmc_request_gpios(struct mmc_host *mmc,
+ struct platform_device *pdev)
{
- int ret;
struct jz4740_mmc_platform_data *pdata = pdev->dev.platform_data;
+ int ret = 0;
if (!pdata)
return 0;
- ret = jz4740_mmc_request_gpio(&pdev->dev, pdata->gpio_card_detect,
- "MMC detect change", false, 0);
- if (ret)
- goto err;
-
- ret = jz4740_mmc_request_gpio(&pdev->dev, pdata->gpio_read_only,
- "MMC read only", false, 0);
- if (ret)
- goto err_free_gpio_card_detect;
-
- ret = jz4740_mmc_request_gpio(&pdev->dev, pdata->gpio_power,
- "MMC read only", true, pdata->power_active_low);
- if (ret)
- goto err_free_gpio_read_only;
-
- return 0;
-
-err_free_gpio_read_only:
- if (gpio_is_valid(pdata->gpio_read_only))
- gpio_free(pdata->gpio_read_only);
-err_free_gpio_card_detect:
- if (gpio_is_valid(pdata->gpio_card_detect))
- gpio_free(pdata->gpio_card_detect);
-err:
- return ret;
-}
-
-static int jz4740_mmc_request_cd_irq(struct platform_device *pdev,
- struct jz4740_mmc_host *host)
-{
- struct jz4740_mmc_platform_data *pdata = pdev->dev.platform_data;
+ if (!pdata->card_detect_active_low)
+ mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
+ if (!pdata->read_only_active_low)
+ mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
- if (!gpio_is_valid(pdata->gpio_card_detect))
- return 0;
+ if (gpio_is_valid(pdata->gpio_card_detect)) {
+ ret = mmc_gpio_request_cd(mmc, pdata->gpio_card_detect);
+ if (ret)
+ return ret;
+ }
- host->card_detect_irq = gpio_to_irq(pdata->gpio_card_detect);
- if (host->card_detect_irq < 0) {
- dev_warn(&pdev->dev, "Failed to get card detect irq\n");
- return 0;
+ if (gpio_is_valid(pdata->gpio_read_only)) {
+ ret = mmc_gpio_request_ro(mmc, pdata->gpio_read_only);
+ if (ret)
+ return ret;
}
- return request_irq(host->card_detect_irq, jz4740_mmc_card_detect_irq,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
- "MMC card detect", host);
+ return jz4740_mmc_request_gpio(&pdev->dev, pdata->gpio_power,
+ "MMC read only", true, pdata->power_active_low);
}
static void jz4740_mmc_free_gpios(struct platform_device *pdev)
@@ -787,10 +737,6 @@ static void jz4740_mmc_free_gpios(struct platform_device *pdev)
if (gpio_is_valid(pdata->gpio_power))
gpio_free(pdata->gpio_power);
- if (gpio_is_valid(pdata->gpio_read_only))
- gpio_free(pdata->gpio_read_only);
- if (gpio_is_valid(pdata->gpio_card_detect))
- gpio_free(pdata->gpio_card_detect);
}
static inline size_t jz4740_mmc_num_pins(struct jz4740_mmc_host *host)
@@ -808,6 +754,7 @@ 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;
@@ -827,42 +774,28 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
goto err_free_host;
}
- host->clk = clk_get(&pdev->dev, "mmc");
+ host->clk = devm_clk_get(&pdev->dev, "mmc");
if (IS_ERR(host->clk)) {
ret = PTR_ERR(host->clk);
dev_err(&pdev->dev, "Failed to get mmc clock\n");
goto err_free_host;
}
- host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!host->mem) {
- ret = -ENOENT;
- dev_err(&pdev->dev, "Failed to get base platform memory\n");
- goto err_clk_put;
- }
-
- host->mem = request_mem_region(host->mem->start,
- resource_size(host->mem), pdev->name);
- if (!host->mem) {
- ret = -EBUSY;
- dev_err(&pdev->dev, "Failed to request base memory region\n");
- goto err_clk_put;
- }
-
- host->base = ioremap_nocache(host->mem->start, resource_size(host->mem));
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ host->base = devm_ioremap_resource(&pdev->dev, res);
if (!host->base) {
ret = -EBUSY;
dev_err(&pdev->dev, "Failed to ioremap base memory\n");
- goto err_release_mem_region;
+ goto err_free_host;
}
ret = jz_gpio_bulk_request(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
if (ret) {
dev_err(&pdev->dev, "Failed to request mmc pins: %d\n", ret);
- goto err_iounmap;
+ goto err_free_host;
}
- ret = jz4740_mmc_request_gpios(pdev);
+ ret = jz4740_mmc_request_gpios(mmc, pdev);
if (ret)
goto err_gpio_bulk_free;
@@ -885,17 +818,11 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
spin_lock_init(&host->lock);
host->irq_mask = 0xffff;
- ret = jz4740_mmc_request_cd_irq(pdev, host);
- if (ret) {
- dev_err(&pdev->dev, "Failed to request card detect irq\n");
- goto err_free_gpios;
- }
-
ret = request_threaded_irq(host->irq, jz_mmc_irq, jz_mmc_irq_worker, 0,
dev_name(&pdev->dev), host);
if (ret) {
dev_err(&pdev->dev, "Failed to request irq: %d\n", ret);
- goto err_free_card_detect_irq;
+ goto err_free_gpios;
}
jz4740_mmc_reset(host);
@@ -918,21 +845,11 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
err_free_irq:
free_irq(host->irq, host);
-err_free_card_detect_irq:
- if (host->card_detect_irq >= 0)
- free_irq(host->card_detect_irq, host);
err_free_gpios:
jz4740_mmc_free_gpios(pdev);
err_gpio_bulk_free:
jz_gpio_bulk_free(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
-err_iounmap:
- iounmap(host->base);
-err_release_mem_region:
- release_mem_region(host->mem->start, resource_size(host->mem));
-err_clk_put:
- clk_put(host->clk);
err_free_host:
- platform_set_drvdata(pdev, NULL);
mmc_free_host(mmc);
return ret;
@@ -949,24 +866,16 @@ static int jz4740_mmc_remove(struct platform_device *pdev)
mmc_remove_host(host->mmc);
free_irq(host->irq, host);
- if (host->card_detect_irq >= 0)
- free_irq(host->card_detect_irq, host);
jz4740_mmc_free_gpios(pdev);
jz_gpio_bulk_free(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
- iounmap(host->base);
- release_mem_region(host->mem->start, resource_size(host->mem));
-
- clk_put(host->clk);
-
- platform_set_drvdata(pdev, NULL);
mmc_free_host(host->mmc);
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int jz4740_mmc_suspend(struct device *dev)
{
@@ -990,13 +899,8 @@ static int jz4740_mmc_resume(struct device *dev)
return 0;
}
-const struct dev_pm_ops jz4740_mmc_pm_ops = {
- .suspend = jz4740_mmc_suspend,
- .resume = jz4740_mmc_resume,
- .poweroff = jz4740_mmc_suspend,
- .restore = jz4740_mmc_resume,
-};
-
+static SIMPLE_DEV_PM_OPS(jz4740_mmc_pm_ops, jz4740_mmc_suspend,
+ jz4740_mmc_resume);
#define JZ4740_MMC_PM_OPS (&jz4740_mmc_pm_ops)
#else
#define JZ4740_MMC_PM_OPS NULL
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 8960fc846c77..4ddd83f98658 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -35,7 +35,7 @@
#define DRIVER_NAME "mvsdio"
-static int maxfreq = MVSD_CLOCKRATE_MAX;
+static int maxfreq;
static int nodma;
struct mvsd_host {
@@ -685,7 +685,6 @@ static int __init mvsd_probe(struct platform_device *pdev)
const struct mbus_dram_target_info *dram;
struct resource *r;
int ret, irq;
- int gpio_card_detect, gpio_write_protect;
struct pinctrl *pinctrl;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -718,6 +717,20 @@ static int __init mvsd_probe(struct platform_device *pdev)
if (!IS_ERR(host->clk))
clk_prepare_enable(host->clk);
+ mmc->ops = &mvsd_ops;
+
+ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+
+ mmc->f_min = DIV_ROUND_UP(host->base_clock, MVSD_BASE_DIV_MAX);
+ mmc->f_max = MVSD_CLOCKRATE_MAX;
+
+ mmc->max_blk_size = 2048;
+ mmc->max_blk_count = 65535;
+
+ mmc->max_segs = 1;
+ mmc->max_seg_size = mmc->max_blk_size * mmc->max_blk_count;
+ mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+
if (np) {
if (IS_ERR(host->clk)) {
dev_err(&pdev->dev, "DT platforms must have a clock associated\n");
@@ -726,35 +739,38 @@ static int __init mvsd_probe(struct platform_device *pdev)
}
host->base_clock = clk_get_rate(host->clk) / 2;
- gpio_card_detect = of_get_named_gpio(np, "cd-gpios", 0);
- gpio_write_protect = of_get_named_gpio(np, "wp-gpios", 0);
+ ret = mmc_of_parse(mmc);
+ if (ret < 0)
+ goto out;
} else {
const struct mvsdio_platform_data *mvsd_data;
+
mvsd_data = pdev->dev.platform_data;
if (!mvsd_data) {
ret = -ENXIO;
goto out;
}
+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ |
+ MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
host->base_clock = mvsd_data->clock / 2;
- gpio_card_detect = mvsd_data->gpio_card_detect ? : -EINVAL;
- gpio_write_protect = mvsd_data->gpio_write_protect ? : -EINVAL;
- }
-
- mmc->ops = &mvsd_ops;
-
- mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
- mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ |
- MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
-
- mmc->f_min = DIV_ROUND_UP(host->base_clock, MVSD_BASE_DIV_MAX);
- mmc->f_max = maxfreq;
+ /* GPIO 0 regarded as invalid for backward compatibility */
+ if (mvsd_data->gpio_card_detect &&
+ gpio_is_valid(mvsd_data->gpio_card_detect)) {
+ ret = mmc_gpio_request_cd(mmc,
+ mvsd_data->gpio_card_detect);
+ if (ret)
+ goto out;
+ } else {
+ mmc->caps |= MMC_CAP_NEEDS_POLL;
+ }
- mmc->max_blk_size = 2048;
- mmc->max_blk_count = 65535;
+ if (mvsd_data->gpio_write_protect &&
+ gpio_is_valid(mvsd_data->gpio_write_protect))
+ mmc_gpio_request_ro(mmc, mvsd_data->gpio_write_protect);
+ }
- mmc->max_segs = 1;
- mmc->max_seg_size = mmc->max_blk_size * mmc->max_blk_count;
- mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+ if (maxfreq)
+ mmc->f_max = maxfreq;
spin_lock_init(&host->lock);
@@ -777,15 +793,6 @@ static int __init mvsd_probe(struct platform_device *pdev)
goto out;
}
- if (gpio_is_valid(gpio_card_detect)) {
- ret = mmc_gpio_request_cd(mmc, gpio_card_detect);
- if (ret)
- goto out;
- } else
- mmc->caps |= MMC_CAP_NEEDS_POLL;
-
- mmc_gpio_request_ro(mmc, gpio_write_protect);
-
setup_timer(&host->timer, mvsd_timeout_timer, (unsigned long)host);
platform_set_drvdata(pdev, mmc);
ret = mmc_add_host(mmc);
@@ -793,10 +800,10 @@ static int __init mvsd_probe(struct platform_device *pdev)
goto out;
if (!(mmc->caps & MMC_CAP_NEEDS_POLL))
- dev_notice(&pdev->dev, "using GPIO %d for card detection\n",
- gpio_card_detect);
+ dev_notice(&pdev->dev, "using GPIO for card detection\n");
else
- dev_notice(&pdev->dev, "lacking card detect (fall back to polling)\n");
+ dev_notice(&pdev->dev,
+ "lacking card detect (fall back to polling)\n");
return 0;
out:
@@ -827,7 +834,6 @@ static int __exit mvsd_remove(struct platform_device *pdev)
clk_disable_unprepare(host->clk);
mmc_free_host(mmc);
- platform_set_drvdata(pdev, NULL);
return 0;
}
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index d5036353bddc..c174c6a0d224 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1067,7 +1067,9 @@ static int mxcmci_probe(struct platform_device *pdev)
goto out_release_mem;
}
- mmc_of_parse(mmc);
+ ret = mmc_of_parse(mmc);
+ if (ret)
+ goto out_free;
mmc->ops = &mxcmci_ops;
/* For devicetree parsing, the bus width is read from devicetree */
@@ -1219,8 +1221,6 @@ static int mxcmci_remove(struct platform_device *pdev)
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct mxcmci_host *host = mmc_priv(mmc);
- platform_set_drvdata(pdev, NULL);
-
mmc_remove_host(mmc);
if (host->vcc)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 4278a1787d08..f38d75f46f78 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -41,7 +41,6 @@
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
#include <linux/module.h>
-#include <linux/pinctrl/consumer.h>
#include <linux/stmp_device.h>
#include <linux/spi/mxs-spi.h>
@@ -580,7 +579,6 @@ static int mxs_mmc_probe(struct platform_device *pdev)
struct mxs_mmc_host *host;
struct mmc_host *mmc;
struct resource *iores;
- struct pinctrl *pinctrl;
int ret = 0, irq_err;
struct regulator *reg_vmmc;
enum of_gpio_flags flags;
@@ -620,12 +618,6 @@ static int mxs_mmc_probe(struct platform_device *pdev)
}
}
- pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
- if (IS_ERR(pinctrl)) {
- ret = PTR_ERR(pinctrl);
- goto out_mmc_free;
- }
-
ssp->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(ssp->clk)) {
ret = PTR_ERR(ssp->clk);
@@ -639,6 +631,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
if (!ssp->dmach) {
dev_err(mmc_dev(host->mmc),
"%s: failed to request dma\n", __func__);
+ ret = -ENODEV;
goto out_clk_put;
}
@@ -708,8 +701,6 @@ static int mxs_mmc_remove(struct platform_device *pdev)
mmc_remove_host(mmc);
- platform_set_drvdata(pdev, NULL);
-
if (ssp->dmach)
dma_release_channel(ssp->dmach);
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 4254975f931d..b94f38ec2a83 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1413,33 +1413,17 @@ static int mmc_omap_probe(struct platform_device *pdev)
else
sig = host->id == 0 ? OMAP_DMA_MMC_TX : OMAP_DMA_MMC2_TX;
host->dma_tx = dma_request_channel(mask, omap_dma_filter_fn, &sig);
-#if 0
- if (!host->dma_tx) {
- dev_err(host->dev, "unable to obtain TX DMA engine channel %u\n",
- sig);
- goto err_dma;
- }
-#else
if (!host->dma_tx)
dev_warn(host->dev, "unable to obtain TX DMA engine channel %u\n",
sig);
-#endif
if (mmc_omap2())
sig = host->id == 0 ? OMAP24XX_DMA_MMC1_RX : OMAP24XX_DMA_MMC2_RX;
else
sig = host->id == 0 ? OMAP_DMA_MMC_RX : OMAP_DMA_MMC2_RX;
host->dma_rx = dma_request_channel(mask, omap_dma_filter_fn, &sig);
-#if 0
- if (!host->dma_rx) {
- dev_err(host->dev, "unable to obtain RX DMA engine channel %u\n",
- sig);
- goto err_dma;
- }
-#else
if (!host->dma_rx)
dev_warn(host->dev, "unable to obtain RX DMA engine channel %u\n",
sig);
-#endif
ret = request_irq(host->irq, mmc_omap_irq, 0, DRIVER_NAME, host);
if (ret)
@@ -1500,8 +1484,6 @@ static int mmc_omap_remove(struct platform_device *pdev)
struct mmc_omap_host *host = platform_get_drvdata(pdev);
int i;
- platform_set_drvdata(pdev, NULL);
-
BUG_ON(host == NULL);
for (i = 0; i < host->nr_slots; i++)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index eccedc7d06a4..1865321465c4 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2047,7 +2047,6 @@ err_irq:
}
err1:
iounmap(host->base);
- platform_set_drvdata(pdev, NULL);
mmc_free_host(mmc);
err_alloc:
omap_hsmmc_gpio_free(pdata);
@@ -2093,7 +2092,6 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res)
release_mem_region(res->start, resource_size(res));
- platform_set_drvdata(pdev, NULL);
return 0;
}
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 2b2f65ada22e..847b1996ce8e 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -834,8 +834,6 @@ static int pxamci_remove(struct platform_device *pdev)
struct mmc_host *mmc = platform_get_drvdata(pdev);
int gpio_cd = -1, gpio_ro = -1, gpio_power = -1;
- platform_set_drvdata(pdev, NULL);
-
if (mmc) {
struct pxamci_host *host = mmc_priv(mmc);
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index ad13f4240c49..82a35b91cdbc 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -1316,8 +1316,6 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
mmc_remove_host(mmc);
mmc_free_host(mmc);
- platform_set_drvdata(pdev, NULL);
-
dev_dbg(&(pdev->dev),
": Realtek PCI-E SDMMC controller has been removed\n");
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 706d9cb1a49e..cdd4ce0d7c90 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -31,10 +31,13 @@
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/err.h>
+#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/acpi.h>
+#include <linux/acpi_gpio.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
+#include <linux/delay.h>
#include <linux/mmc/host.h>
#include <linux/mmc/pm.h>
@@ -83,12 +86,37 @@ static int sdhci_acpi_enable_dma(struct sdhci_host *host)
return 0;
}
+static void sdhci_acpi_int_hw_reset(struct sdhci_host *host)
+{
+ u8 reg;
+
+ reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
+ reg |= 0x10;
+ sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
+ /* For eMMC, minimum is 1us but give it 9us for good measure */
+ udelay(9);
+ reg &= ~0x10;
+ sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
+ /* For eMMC, minimum is 200us but give it 300us for good measure */
+ usleep_range(300, 1000);
+}
+
static const struct sdhci_ops sdhci_acpi_ops_dflt = {
.enable_dma = sdhci_acpi_enable_dma,
};
+static const struct sdhci_ops sdhci_acpi_ops_int = {
+ .enable_dma = sdhci_acpi_enable_dma,
+ .hw_reset = sdhci_acpi_int_hw_reset,
+};
+
+static const struct sdhci_acpi_chip sdhci_acpi_chip_int = {
+ .ops = &sdhci_acpi_ops_int,
+};
+
static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = {
- .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+ .chip = &sdhci_acpi_chip_int,
+ .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | MMC_CAP_HW_RESET,
.caps2 = MMC_CAP2_HC_ERASE_SZ,
.flags = SDHCI_ACPI_RUNTIME_PM,
};
@@ -101,6 +129,8 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
};
static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = {
+ .flags = SDHCI_ACPI_SD_CD | SDHCI_ACPI_RUNTIME_PM,
+ .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,
};
struct sdhci_acpi_uid_slot {
@@ -161,6 +191,59 @@ static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(acpi_handle handle,
return slot;
}
+#ifdef CONFIG_PM_RUNTIME
+
+static irqreturn_t sdhci_acpi_sd_cd(int irq, void *dev_id)
+{
+ mmc_detect_change(dev_id, msecs_to_jiffies(200));
+ return IRQ_HANDLED;
+}
+
+static int sdhci_acpi_add_own_cd(struct device *dev, int gpio,
+ struct mmc_host *mmc)
+{
+ unsigned long flags;
+ int err, irq;
+
+ if (gpio < 0) {
+ err = gpio;
+ goto out;
+ }
+
+ err = devm_gpio_request_one(dev, gpio, GPIOF_DIR_IN, "sd_cd");
+ if (err)
+ goto out;
+
+ irq = gpio_to_irq(gpio);
+ if (irq < 0) {
+ err = irq;
+ goto out_free;
+ }
+
+ flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING;
+ err = devm_request_irq(dev, irq, sdhci_acpi_sd_cd, flags, "sd_cd", mmc);
+ if (err)
+ goto out_free;
+
+ return 0;
+
+out_free:
+ devm_gpio_free(dev, gpio);
+out:
+ dev_warn(dev, "failed to setup card detect wake up\n");
+ return err;
+}
+
+#else
+
+static int sdhci_acpi_add_own_cd(struct device *dev, int gpio,
+ struct mmc_host *mmc)
+{
+ return 0;
+}
+
+#endif
+
static int sdhci_acpi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -171,7 +254,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
struct resource *iomem;
resource_size_t len;
const char *hid;
- int err;
+ int err, gpio;
if (acpi_bus_get_device(handle, &device))
return -ENODEV;
@@ -196,6 +279,8 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (IS_ERR(host))
return PTR_ERR(host);
+ gpio = acpi_get_gpio_by_index(dev, 0, NULL);
+
c = sdhci_priv(host);
c->host = host;
c->slot = sdhci_acpi_get_slot(handle, hid);
@@ -251,6 +336,11 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (err)
goto err_free;
+ if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
+ if (sdhci_acpi_add_own_cd(dev, gpio, host->mmc))
+ c->use_runtime_pm = false;
+ }
+
if (c->use_runtime_pm) {
pm_runtime_set_active(dev);
pm_suspend_ignore_children(dev, 1);
@@ -262,7 +352,6 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
return 0;
err_free:
- platform_set_drvdata(pdev, NULL);
sdhci_free_host(c->host);
return err;
}
@@ -281,7 +370,6 @@ static int sdhci_acpi_remove(struct platform_device *pdev)
dead = (sdhci_readl(c->host, SDHCI_INT_STATUS) == ~0);
sdhci_remove_host(c->host, dead);
- platform_set_drvdata(pdev, NULL);
sdhci_free_host(c->host);
return 0;
diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c
new file mode 100644
index 000000000000..87175f9817c2
--- /dev/null
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -0,0 +1,348 @@
+/*
+ * Copyright (C) 2013 Broadcom Corporation
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/highmem.h>
+#include <linux/platform_device.h>
+#include <linux/mmc/host.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/version.h>
+#include <linux/mmc/slot-gpio.h>
+
+#include "sdhci-pltfm.h"
+#include "sdhci.h"
+
+#define SDHCI_SOFT_RESET 0x01000000
+#define KONA_SDHOST_CORECTRL 0x8000
+#define KONA_SDHOST_CD_PINCTRL 0x00000008
+#define KONA_SDHOST_STOP_HCLK 0x00000004
+#define KONA_SDHOST_RESET 0x00000002
+#define KONA_SDHOST_EN 0x00000001
+
+#define KONA_SDHOST_CORESTAT 0x8004
+#define KONA_SDHOST_WP 0x00000002
+#define KONA_SDHOST_CD_SW 0x00000001
+
+#define KONA_SDHOST_COREIMR 0x8008
+#define KONA_SDHOST_IP 0x00000001
+
+#define KONA_SDHOST_COREISR 0x800C
+#define KONA_SDHOST_COREIMSR 0x8010
+#define KONA_SDHOST_COREDBG1 0x8014
+#define KONA_SDHOST_COREGPO_MASK 0x8018
+
+#define SD_DETECT_GPIO_DEBOUNCE_128MS 128
+
+#define KONA_MMC_AUTOSUSPEND_DELAY (50)
+
+struct sdhci_bcm_kona_dev {
+ struct mutex write_lock; /* protect back to back writes */
+};
+
+
+static int sdhci_bcm_kona_sd_reset(struct sdhci_host *host)
+{
+ unsigned int val;
+ unsigned long timeout;
+
+ /* This timeout should be sufficent for core to reset */
+ timeout = jiffies + msecs_to_jiffies(100);
+
+ /* reset the host using the top level reset */
+ val = sdhci_readl(host, KONA_SDHOST_CORECTRL);
+ val |= KONA_SDHOST_RESET;
+ sdhci_writel(host, val, KONA_SDHOST_CORECTRL);
+
+ while (!(sdhci_readl(host, KONA_SDHOST_CORECTRL) & KONA_SDHOST_RESET)) {
+ if (time_is_before_jiffies(timeout)) {
+ pr_err("Error: sd host is stuck in reset!!!\n");
+ return -EFAULT;
+ }
+ }
+
+ /* bring the host out of reset */
+ val = sdhci_readl(host, KONA_SDHOST_CORECTRL);
+ val &= ~KONA_SDHOST_RESET;
+
+ /*
+ * Back-to-Back register write needs a delay of 1ms at bootup (min 10uS)
+ * Back-to-Back writes to same register needs delay when SD bus clock
+ * is very low w.r.t AHB clock, mainly during boot-time and during card
+ * insert-removal.
+ */
+ usleep_range(1000, 5000);
+ sdhci_writel(host, val, KONA_SDHOST_CORECTRL);
+
+ return 0;
+}
+
+static void sdhci_bcm_kona_sd_init(struct sdhci_host *host)
+{
+ unsigned int val;
+
+ /* enable the interrupt from the IP core */
+ val = sdhci_readl(host, KONA_SDHOST_COREIMR);
+ val |= KONA_SDHOST_IP;
+ sdhci_writel(host, val, KONA_SDHOST_COREIMR);
+
+ /* Enable the AHB clock gating module to the host */
+ val = sdhci_readl(host, KONA_SDHOST_CORECTRL);
+ val |= KONA_SDHOST_EN;
+
+ /*
+ * Back-to-Back register write needs a delay of 1ms at bootup (min 10uS)
+ * Back-to-Back writes to same register needs delay when SD bus clock
+ * is very low w.r.t AHB clock, mainly during boot-time and during card
+ * insert-removal.
+ */
+ usleep_range(1000, 5000);
+ sdhci_writel(host, val, KONA_SDHOST_CORECTRL);
+}
+
+/*
+ * Software emulation of the SD card insertion/removal. Set insert=1 for insert
+ * and insert=0 for removal. The card detection is done by GPIO. For Broadcom
+ * IP to function properly the bit 0 of CORESTAT register needs to be set/reset
+ * to generate the CD IRQ handled in sdhci.c which schedules card_tasklet.
+ */
+static int sdhci_bcm_kona_sd_card_emulate(struct sdhci_host *host, int insert)
+{
+ struct sdhci_pltfm_host *pltfm_priv = sdhci_priv(host);
+ struct sdhci_bcm_kona_dev *kona_dev = sdhci_pltfm_priv(pltfm_priv);
+ u32 val;
+
+ /*
+ * Back-to-Back register write needs a delay of min 10uS.
+ * Back-to-Back writes to same register needs delay when SD bus clock
+ * is very low w.r.t AHB clock, mainly during boot-time and during card
+ * insert-removal.
+ * We keep 20uS
+ */
+ mutex_lock(&kona_dev->write_lock);
+ udelay(20);
+ val = sdhci_readl(host, KONA_SDHOST_CORESTAT);
+
+ if (insert) {
+ int ret;
+
+ ret = mmc_gpio_get_ro(host->mmc);
+ if (ret >= 0)
+ val = (val & ~KONA_SDHOST_WP) |
+ ((ret) ? KONA_SDHOST_WP : 0);
+
+ val |= KONA_SDHOST_CD_SW;
+ sdhci_writel(host, val, KONA_SDHOST_CORESTAT);
+ } else {
+ val &= ~KONA_SDHOST_CD_SW;
+ sdhci_writel(host, val, KONA_SDHOST_CORESTAT);
+ }
+ mutex_unlock(&kona_dev->write_lock);
+
+ return 0;
+}
+
+/*
+ * SD card interrupt event callback
+ */
+void sdhci_bcm_kona_card_event(struct sdhci_host *host)
+{
+ if (mmc_gpio_get_cd(host->mmc) > 0) {
+ dev_dbg(mmc_dev(host->mmc),
+ "card inserted\n");
+ sdhci_bcm_kona_sd_card_emulate(host, 1);
+ } else {
+ dev_dbg(mmc_dev(host->mmc),
+ "card removed\n");
+ sdhci_bcm_kona_sd_card_emulate(host, 0);
+ }
+}
+
+/*
+ * Get the base clock. Use central clock source for now. Not sure if different
+ * clock speed to each dev is allowed
+ */
+static unsigned int sdhci_bcm_kona_get_max_clk(struct sdhci_host *host)
+{
+ struct sdhci_bcm_kona_dev *kona_dev;
+ struct sdhci_pltfm_host *pltfm_priv = sdhci_priv(host);
+ kona_dev = sdhci_pltfm_priv(pltfm_priv);
+
+ return host->mmc->f_max;
+}
+
+static unsigned int sdhci_bcm_kona_get_timeout_clock(struct sdhci_host *host)
+{
+ return sdhci_bcm_kona_get_max_clk(host);
+}
+
+static void sdhci_bcm_kona_init_74_clocks(struct sdhci_host *host,
+ u8 power_mode)
+{
+ /*
+ * JEDEC and SD spec specify supplying 74 continuous clocks to
+ * device after power up. With minimum bus (100KHz) that
+ * that translates to 740us
+ */
+ if (power_mode != MMC_POWER_OFF)
+ udelay(740);
+}
+
+static struct sdhci_ops sdhci_bcm_kona_ops = {
+ .get_max_clock = sdhci_bcm_kona_get_max_clk,
+ .get_timeout_clock = sdhci_bcm_kona_get_timeout_clock,
+ .platform_send_init_74_clocks = sdhci_bcm_kona_init_74_clocks,
+ .card_event = sdhci_bcm_kona_card_event,
+};
+
+static struct sdhci_pltfm_data sdhci_pltfm_data_kona = {
+ .ops = &sdhci_bcm_kona_ops,
+ .quirks = SDHCI_QUIRK_NO_CARD_NO_RESET |
+ SDHCI_QUIRK_BROKEN_TIMEOUT_VAL | SDHCI_QUIRK_32BIT_DMA_ADDR |
+ SDHCI_QUIRK_32BIT_DMA_SIZE | SDHCI_QUIRK_32BIT_ADMA_SIZE |
+ SDHCI_QUIRK_FORCE_BLK_SZ_2048 |
+ SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
+};
+
+static const struct of_device_id sdhci_bcm_kona_of_match[] __initdata = {
+ { .compatible = "bcm,kona-sdhci"},
+ {}
+};
+MODULE_DEVICE_TABLE(of, sdhci_bcm_kona_of_match);
+
+static int __init sdhci_bcm_kona_probe(struct platform_device *pdev)
+{
+ struct sdhci_bcm_kona_dev *kona_dev = NULL;
+ struct sdhci_pltfm_host *pltfm_priv;
+ struct device *dev = &pdev->dev;
+ struct sdhci_host *host;
+ int ret;
+
+ ret = 0;
+
+ host = sdhci_pltfm_init(pdev, &sdhci_pltfm_data_kona,
+ sizeof(*kona_dev));
+ if (IS_ERR(host))
+ return PTR_ERR(host);
+
+ dev_dbg(dev, "%s: inited. IOADDR=%p\n", __func__, host->ioaddr);
+
+ pltfm_priv = sdhci_priv(host);
+
+ kona_dev = sdhci_pltfm_priv(pltfm_priv);
+ mutex_init(&kona_dev->write_lock);
+
+ mmc_of_parse(host->mmc);
+
+ if (!host->mmc->f_max) {
+ dev_err(&pdev->dev, "Missing max-freq for SDHCI cfg\n");
+ ret = -ENXIO;
+ goto err_pltfm_free;
+ }
+
+ dev_dbg(dev, "non-removable=%c\n",
+ (host->mmc->caps & MMC_CAP_NONREMOVABLE) ? 'Y' : 'N');
+ dev_dbg(dev, "cd_gpio %c, wp_gpio %c\n",
+ (mmc_gpio_get_cd(host->mmc) != -ENOSYS) ? 'Y' : 'N',
+ (mmc_gpio_get_ro(host->mmc) != -ENOSYS) ? 'Y' : 'N');
+
+ if (host->mmc->caps | MMC_CAP_NONREMOVABLE)
+ host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
+
+ dev_dbg(dev, "is_8bit=%c\n",
+ (host->mmc->caps | MMC_CAP_8_BIT_DATA) ? 'Y' : 'N');
+
+ ret = sdhci_bcm_kona_sd_reset(host);
+ if (ret)
+ goto err_pltfm_free;
+
+ sdhci_bcm_kona_sd_init(host);
+
+ ret = sdhci_add_host(host);
+ if (ret) {
+ dev_err(dev, "Failed sdhci_add_host\n");
+ goto err_reset;
+ }
+
+ /* if device is eMMC, emulate card insert right here */
+ if (host->mmc->caps | MMC_CAP_NONREMOVABLE) {
+ ret = sdhci_bcm_kona_sd_card_emulate(host, 1);
+ if (ret) {
+ dev_err(dev,
+ "unable to emulate card insertion\n");
+ goto err_remove_host;
+ }
+ }
+ /*
+ * Since the card detection GPIO interrupt is configured to be
+ * edge sensitive, check the initial GPIO value here, emulate
+ * only if the card is present
+ */
+ if (mmc_gpio_get_cd(host->mmc) > 0)
+ sdhci_bcm_kona_sd_card_emulate(host, 1);
+
+ dev_dbg(dev, "initialized properly\n");
+ return 0;
+
+err_remove_host:
+ sdhci_remove_host(host, 0);
+
+err_reset:
+ sdhci_bcm_kona_sd_reset(host);
+
+err_pltfm_free:
+ sdhci_pltfm_free(pdev);
+
+ dev_err(dev, "Probing of sdhci-pltfm failed: %d\n", ret);
+ return ret;
+}
+
+static int __exit sdhci_bcm_kona_remove(struct platform_device *pdev)
+{
+ struct sdhci_host *host = platform_get_drvdata(pdev);
+ int dead;
+ u32 scratch;
+
+ dead = 0;
+ scratch = readl(host->ioaddr + SDHCI_INT_STATUS);
+ if (scratch == (u32)-1)
+ dead = 1;
+ sdhci_remove_host(host, dead);
+
+ sdhci_free_host(host);
+
+ return 0;
+}
+
+static struct platform_driver sdhci_bcm_kona_driver = {
+ .driver = {
+ .name = "sdhci-kona",
+ .owner = THIS_MODULE,
+ .pm = SDHCI_PLTFM_PMOPS,
+ .of_match_table = of_match_ptr(sdhci_bcm_kona_of_match),
+ },
+ .probe = sdhci_bcm_kona_probe,
+ .remove = __exit_p(sdhci_bcm_kona_remove),
+};
+module_platform_driver(sdhci_bcm_kona_driver);
+
+MODULE_DESCRIPTION("SDHCI driver for Broadcom Kona platform");
+MODULE_AUTHOR("Broadcom");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c
index d49bc958c8ba..0584a1c788b8 100644
--- a/drivers/mmc/host/sdhci-bcm2835.c
+++ b/drivers/mmc/host/sdhci-bcm2835.c
@@ -148,7 +148,7 @@ static int bcm2835_sdhci_probe(struct platform_device *pdev)
struct sdhci_pltfm_host *pltfm_host;
int ret;
- host = sdhci_pltfm_init(pdev, &bcm2835_sdhci_pdata);
+ host = sdhci_pltfm_init(pdev, &bcm2835_sdhci_pdata, 0);
if (IS_ERR(host))
return PTR_ERR(host);
diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c
index 8ebb6b650f3f..f2cc26633cb2 100644
--- a/drivers/mmc/host/sdhci-cns3xxx.c
+++ b/drivers/mmc/host/sdhci-cns3xxx.c
@@ -96,7 +96,7 @@ static const struct sdhci_pltfm_data sdhci_cns3xxx_pdata = {
static int sdhci_cns3xxx_probe(struct platform_device *pdev)
{
- return sdhci_pltfm_register(pdev, &sdhci_cns3xxx_pdata);
+ return sdhci_pltfm_register(pdev, &sdhci_cns3xxx_pdata, 0);
}
static int sdhci_cns3xxx_remove(struct platform_device *pdev)
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index 15e7803040f1..8424839660f8 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -130,7 +130,7 @@ static int sdhci_dove_probe(struct platform_device *pdev)
gpio_direction_input(priv->gpio_cd);
}
- host = sdhci_pltfm_init(pdev, &sdhci_dove_pdata);
+ host = sdhci_pltfm_init(pdev, &sdhci_dove_pdata, 0);
if (IS_ERR(host)) {
ret = PTR_ERR(host);
goto err_sdhci_pltfm_init;
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index d5f0d59e1310..1dd5ba858754 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -384,6 +384,20 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
}
}
+static unsigned int esdhc_pltfm_get_max_clock(struct sdhci_host *host)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct pltfm_imx_data *imx_data = pltfm_host->priv;
+ struct esdhc_platform_data *boarddata = &imx_data->boarddata;
+
+ u32 f_host = clk_get_rate(pltfm_host->clk);
+
+ if (boarddata->f_max && (boarddata->f_max < f_host))
+ return boarddata->f_max;
+ else
+ return f_host;
+}
+
static unsigned int esdhc_pltfm_get_min_clock(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -391,6 +405,14 @@ static unsigned int esdhc_pltfm_get_min_clock(struct sdhci_host *host)
return clk_get_rate(pltfm_host->clk) / 256 / 16;
}
+static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
+ unsigned int clock)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+
+ esdhc_set_clock(host, clock, clk_get_rate(pltfm_host->clk));
+}
+
static unsigned int esdhc_pltfm_get_ro(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -438,8 +460,8 @@ static const struct sdhci_ops sdhci_esdhc_ops = {
.write_l = esdhc_writel_le,
.write_w = esdhc_writew_le,
.write_b = esdhc_writeb_le,
- .set_clock = esdhc_set_clock,
- .get_max_clock = sdhci_pltfm_clk_get_max_clock,
+ .set_clock = esdhc_pltfm_set_clock,
+ .get_max_clock = esdhc_pltfm_get_max_clock,
.get_min_clock = esdhc_pltfm_get_min_clock,
.get_ro = esdhc_pltfm_get_ro,
.platform_bus_width = esdhc_pltfm_bus_width,
@@ -482,6 +504,8 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
of_property_read_u32(np, "bus-width", &boarddata->max_bus_width);
+ of_property_read_u32(np, "max-frequency", &boarddata->f_max);
+
return 0;
}
#else
@@ -503,7 +527,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
int err;
struct pltfm_imx_data *imx_data;
- host = sdhci_pltfm_init(pdev, &sdhci_esdhc_imx_pdata);
+ host = sdhci_pltfm_init(pdev, &sdhci_esdhc_imx_pdata, 0);
if (IS_ERR(host))
return PTR_ERR(host);
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index d25f9ab9a54d..a2a06420e463 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -36,13 +36,21 @@
/* pltfm-specific */
#define ESDHC_HOST_CONTROL_LE 0x20
+/*
+ * P2020 interpretation of the SDHCI_HOST_CONTROL register
+ */
+#define ESDHC_CTRL_4BITBUS (0x1 << 1)
+#define ESDHC_CTRL_8BITBUS (0x2 << 1)
+#define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1)
+
/* OF-specific */
#define ESDHC_DMA_SYSCTL 0x40c
#define ESDHC_DMA_SNOOP 0x00000040
#define ESDHC_HOST_CONTROL_RES 0x05
-static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock)
+static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock,
+ unsigned int host_clock)
{
int pre_div = 2;
int div = 1;
@@ -56,14 +64,14 @@ static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock)
| ESDHC_CLOCK_MASK);
sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
- while (host->max_clk / pre_div / 16 > clock && pre_div < 256)
+ while (host_clock / pre_div / 16 > clock && pre_div < 256)
pre_div *= 2;
- while (host->max_clk / pre_div / div > clock && div < 16)
+ while (host_clock / pre_div / div > clock && div < 16)
div++;
dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
- clock, host->max_clk / pre_div / div);
+ clock, host_clock / pre_div / div);
pre_div >>= 1;
div--;
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 5e68adc2461e..15039e2d1c12 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -13,6 +13,7 @@
* your option) any later version.
*/
+#include <linux/err.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/delay.h>
@@ -120,6 +121,13 @@ static void esdhc_writeb(struct sdhci_host *host, u8 val, int reg)
if (reg == SDHCI_HOST_CONTROL) {
u32 dma_bits;
+ /*
+ * If host control register is not standard, exit
+ * this function
+ */
+ if (host->quirks2 & SDHCI_QUIRK2_BROKEN_HOST_CONTROL)
+ return;
+
/* DMA select is 22,23 bits in Protocol Control Register */
dma_bits = (val & SDHCI_CTRL_DMA_MASK) << 5;
clrsetbits_be32(host->ioaddr + reg , SDHCI_CTRL_DMA_MASK << 5,
@@ -200,7 +208,7 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
}
/* Set the clock */
- esdhc_set_clock(host, clock);
+ esdhc_set_clock(host, clock, host->max_clk);
}
#ifdef CONFIG_PM
@@ -230,6 +238,30 @@ static void esdhc_of_platform_init(struct sdhci_host *host)
host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
}
+static int esdhc_pltfm_bus_width(struct sdhci_host *host, int width)
+{
+ u32 ctrl;
+
+ switch (width) {
+ case MMC_BUS_WIDTH_8:
+ ctrl = ESDHC_CTRL_8BITBUS;
+ break;
+
+ case MMC_BUS_WIDTH_4:
+ ctrl = ESDHC_CTRL_4BITBUS;
+ break;
+
+ default:
+ ctrl = 0;
+ break;
+ }
+
+ clrsetbits_be32(host->ioaddr + SDHCI_HOST_CONTROL,
+ ESDHC_CTRL_BUSWIDTH_MASK, ctrl);
+
+ return 0;
+}
+
static const struct sdhci_ops sdhci_esdhc_ops = {
.read_l = esdhc_readl,
.read_w = esdhc_readw,
@@ -247,6 +279,7 @@ static const struct sdhci_ops sdhci_esdhc_ops = {
.platform_resume = esdhc_of_resume,
#endif
.adma_workaround = esdhci_of_adma_workaround,
+ .platform_bus_width = esdhc_pltfm_bus_width,
};
static const struct sdhci_pltfm_data sdhci_esdhc_pdata = {
@@ -262,7 +295,33 @@ static const struct sdhci_pltfm_data sdhci_esdhc_pdata = {
static int sdhci_esdhc_probe(struct platform_device *pdev)
{
- return sdhci_pltfm_register(pdev, &sdhci_esdhc_pdata);
+ struct sdhci_host *host;
+ struct device_node *np;
+ int ret;
+
+ host = sdhci_pltfm_init(pdev, &sdhci_esdhc_pdata, 0);
+ if (IS_ERR(host))
+ return PTR_ERR(host);
+
+ sdhci_get_of_property(pdev);
+
+ np = pdev->dev.of_node;
+ if (of_device_is_compatible(np, "fsl,p2020-esdhc")) {
+ /*
+ * Freescale messed up with P2020 as it has a non-standard
+ * host control register
+ */
+ host->quirks2 |= SDHCI_QUIRK2_BROKEN_HOST_CONTROL;
+ }
+
+ /* call to generic mmc_of_parse to support additional capabilities */
+ mmc_of_parse(host->mmc);
+
+ ret = sdhci_add_host(host);
+ if (ret)
+ sdhci_pltfm_free(pdev);
+
+ return ret;
}
static int sdhci_esdhc_remove(struct platform_device *pdev)
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 200a6a9fa805..57c514a81ca5 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -68,7 +68,7 @@ static const struct sdhci_pltfm_data sdhci_hlwd_pdata = {
static int sdhci_hlwd_probe(struct platform_device *pdev)
{
- return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata);
+ return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata, 0);
}
static int sdhci_hlwd_remove(struct platform_device *pdev)
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 701d06d0e1fb..d7d6bc8968d2 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -36,6 +36,7 @@
#define PCI_DEVICE_ID_INTEL_BYT_EMMC 0x0f14
#define PCI_DEVICE_ID_INTEL_BYT_SDIO 0x0f15
#define PCI_DEVICE_ID_INTEL_BYT_SD 0x0f16
+#define PCI_DEVICE_ID_INTEL_BYT_EMMC2 0x0f50
/*
* PCI registers
@@ -77,6 +78,8 @@ struct sdhci_pci_slot {
int rst_n_gpio;
int cd_gpio;
int cd_irq;
+
+ void (*hw_reset)(struct sdhci_host *host);
};
struct sdhci_pci_chip {
@@ -307,10 +310,27 @@ static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
.probe_slot = pch_hc_probe_slot,
};
+static void sdhci_pci_int_hw_reset(struct sdhci_host *host)
+{
+ u8 reg;
+
+ reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
+ reg |= 0x10;
+ sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
+ /* For eMMC, minimum is 1us but give it 9us for good measure */
+ udelay(9);
+ reg &= ~0x10;
+ sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
+ /* For eMMC, minimum is 200us but give it 300us for good measure */
+ usleep_range(300, 1000);
+}
+
static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
{
- slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
+ slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
+ MMC_CAP_HW_RESET;
slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
+ slot->hw_reset = sdhci_pci_int_hw_reset;
return 0;
}
@@ -332,6 +352,8 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
};
static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
+ .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,
+ .allow_runtime_pm = true,
};
/* O2Micro extra registers */
@@ -910,6 +932,14 @@ static const struct pci_device_id pci_ids[] = {
},
{
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BYT_EMMC2,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
+ },
+
+ {
.vendor = PCI_VENDOR_ID_O2,
.device = PCI_DEVICE_ID_O2_8120,
.subvendor = PCI_ANY_ID,
@@ -1014,7 +1044,7 @@ static int sdhci_pci_bus_width(struct sdhci_host *host, int width)
return 0;
}
-static void sdhci_pci_hw_reset(struct sdhci_host *host)
+static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host)
{
struct sdhci_pci_slot *slot = sdhci_priv(host);
int rst_n_gpio = slot->rst_n_gpio;
@@ -1029,6 +1059,14 @@ static void sdhci_pci_hw_reset(struct sdhci_host *host)
usleep_range(300, 1000);
}
+static void sdhci_pci_hw_reset(struct sdhci_host *host)
+{
+ struct sdhci_pci_slot *slot = sdhci_priv(host);
+
+ if (slot->hw_reset)
+ slot->hw_reset(host);
+}
+
static const struct sdhci_ops sdhci_pci_ops = {
.enable_dma = sdhci_pci_enable_dma,
.platform_bus_width = sdhci_pci_bus_width,
@@ -1326,6 +1364,7 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
if (!gpio_request(slot->rst_n_gpio, "eMMC_reset")) {
gpio_direction_output(slot->rst_n_gpio, 1);
slot->host->mmc->caps |= MMC_CAP_HW_RESET;
+ slot->hw_reset = sdhci_pci_gpio_hw_reset;
} else {
dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
slot->rst_n_gpio = -EINVAL;
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index cd0f1f68e261..e2065a44dffc 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -115,10 +115,10 @@ 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,
- const struct sdhci_pltfm_data *pdata)
+ const struct sdhci_pltfm_data *pdata,
+ size_t priv_size)
{
struct sdhci_host *host;
- struct sdhci_pltfm_host *pltfm_host;
struct device_node *np = pdev->dev.of_node;
struct resource *iomem;
int ret;
@@ -134,24 +134,27 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
/* Some PCI-based MFD need the parent here */
if (pdev->dev.parent != &platform_bus && !np)
- host = sdhci_alloc_host(pdev->dev.parent, sizeof(*pltfm_host));
+ host = sdhci_alloc_host(pdev->dev.parent,
+ sizeof(struct sdhci_pltfm_host) + priv_size);
else
- host = sdhci_alloc_host(&pdev->dev, sizeof(*pltfm_host));
+ host = sdhci_alloc_host(&pdev->dev,
+ sizeof(struct sdhci_pltfm_host) + priv_size);
if (IS_ERR(host)) {
ret = PTR_ERR(host);
goto err;
}
- pltfm_host = sdhci_priv(host);
-
host->hw_name = dev_name(&pdev->dev);
if (pdata && pdata->ops)
host->ops = pdata->ops;
else
host->ops = &sdhci_pltfm_ops;
- if (pdata)
+ if (pdata) {
host->quirks = pdata->quirks;
+ host->quirks2 = pdata->quirks2;
+ }
+
host->irq = platform_get_irq(pdev, 0);
if (!request_mem_region(iomem->start, resource_size(iomem),
@@ -197,17 +200,17 @@ void sdhci_pltfm_free(struct platform_device *pdev)
iounmap(host->ioaddr);
release_mem_region(iomem->start, resource_size(iomem));
sdhci_free_host(host);
- platform_set_drvdata(pdev, NULL);
}
EXPORT_SYMBOL_GPL(sdhci_pltfm_free);
int sdhci_pltfm_register(struct platform_device *pdev,
- const struct sdhci_pltfm_data *pdata)
+ const struct sdhci_pltfm_data *pdata,
+ size_t priv_size)
{
struct sdhci_host *host;
int ret = 0;
- host = sdhci_pltfm_init(pdev, pdata);
+ host = sdhci_pltfm_init(pdev, pdata, priv_size);
if (IS_ERR(host))
return PTR_ERR(host);
diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
index 1210ed1b0c60..e15ced79f7ed 100644
--- a/drivers/mmc/host/sdhci-pltfm.h
+++ b/drivers/mmc/host/sdhci-pltfm.h
@@ -18,6 +18,7 @@
struct sdhci_pltfm_data {
const struct sdhci_ops *ops;
unsigned int quirks;
+ unsigned int quirks2;
};
struct sdhci_pltfm_host {
@@ -27,6 +28,8 @@ struct sdhci_pltfm_host {
/* migrate from sdhci_of_host */
unsigned int clock;
u16 xfer_mode_shadow;
+
+ unsigned long private[0] ____cacheline_aligned;
};
#ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
@@ -91,15 +94,22 @@ 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,
- const struct sdhci_pltfm_data *pdata);
+ const struct sdhci_pltfm_data *pdata,
+ size_t priv_size);
extern void sdhci_pltfm_free(struct platform_device *pdev);
extern int sdhci_pltfm_register(struct platform_device *pdev,
- const struct sdhci_pltfm_data *pdata);
+ const struct sdhci_pltfm_data *pdata,
+ size_t priv_size);
extern int sdhci_pltfm_unregister(struct platform_device *pdev);
extern unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host);
+static inline void *sdhci_pltfm_priv(struct sdhci_pltfm_host *host)
+{
+ return (void *)host->private;
+}
+
#ifdef CONFIG_PM
extern const struct dev_pm_ops sdhci_pltfm_pmops;
#define SDHCI_PLTFM_PMOPS (&sdhci_pltfm_pmops)
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index 6a3f702a38a6..d51e061ec576 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -175,7 +175,7 @@ static int sdhci_pxav2_probe(struct platform_device *pdev)
if (!pxa)
return -ENOMEM;
- host = sdhci_pltfm_init(pdev, NULL);
+ host = sdhci_pltfm_init(pdev, NULL, 0);
if (IS_ERR(host)) {
kfree(pxa);
return PTR_ERR(host);
@@ -253,8 +253,6 @@ static int sdhci_pxav2_remove(struct platform_device *pdev)
sdhci_pltfm_free(pdev);
kfree(pxa);
- platform_set_drvdata(pdev, NULL);
-
return 0;
}
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index 1ae358e0662d..bf99359a3a90 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -230,7 +230,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
if (!pxa)
return -ENOMEM;
- host = sdhci_pltfm_init(pdev, &sdhci_pxav3_pdata);
+ host = sdhci_pltfm_init(pdev, &sdhci_pxav3_pdata, 0);
if (IS_ERR(host)) {
kfree(pxa);
return PTR_ERR(host);
@@ -252,7 +252,9 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev);
if (match) {
- mmc_of_parse(host->mmc);
+ ret = mmc_of_parse(host->mmc);
+ if (ret)
+ goto err_of_parse;
sdhci_get_of_property(pdev);
pdata = pxav3_get_mmc_pdata(dev);
} else if (pdata) {
@@ -285,18 +287,15 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
}
}
- pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS);
pm_runtime_use_autosuspend(&pdev->dev);
pm_suspend_ignore_children(&pdev->dev, 1);
- pm_runtime_get_noresume(&pdev->dev);
ret = sdhci_add_host(host);
if (ret) {
dev_err(&pdev->dev, "failed to add host\n");
- pm_runtime_forbid(&pdev->dev);
- pm_runtime_disable(&pdev->dev);
goto err_add_host;
}
@@ -313,10 +312,13 @@ 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);
clk_disable_unprepare(clk);
clk_put(clk);
-err_cd_req:
err_clk_get:
sdhci_pltfm_free(pdev);
kfree(pxa);
@@ -339,8 +341,6 @@ static int sdhci_pxav3_remove(struct platform_device *pdev)
sdhci_pltfm_free(pdev);
kfree(pxa);
- platform_set_drvdata(pdev, NULL);
-
return 0;
}
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index c6f6246a4933..926aaf6acc67 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -745,7 +745,6 @@ static int sdhci_s3c_remove(struct platform_device *pdev)
clk_disable_unprepare(sc->clk_io);
sdhci_free_host(host);
- platform_set_drvdata(pdev, NULL);
return 0;
}
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
index 09805af0526d..62a4a835acc6 100644
--- a/drivers/mmc/host/sdhci-sirf.c
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -13,7 +13,6 @@
#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 {
@@ -24,7 +23,7 @@ struct sdhci_sirf_priv {
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;
+ struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
return clk_get_rate(priv->clk);
}
@@ -46,47 +45,35 @@ 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;
+ struct clk *clk;
+ int gpio_cd;
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)) {
+ clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get clock");
- return PTR_ERR(priv->clk);
+ return PTR_ERR(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;
- }
+ if (pdev->dev.of_node)
+ gpio_cd = of_get_named_gpio(pdev->dev.of_node, "cd-gpios", 0);
+ else
+ gpio_cd = -EINVAL;
- host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata);
- if (IS_ERR(host)) {
- ret = PTR_ERR(host);
- goto err_sdhci_pltfm_init;
- }
+ host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata, sizeof(struct sdhci_sirf_priv));
+ if (IS_ERR(host))
+ return PTR_ERR(host);
pltfm_host = sdhci_priv(host);
- pltfm_host->priv = priv;
+ priv = sdhci_pltfm_priv(pltfm_host);
+ priv->clk = clk;
+ priv->gpio_cd = gpio_cd;
sdhci_get_of_property(pdev);
- clk_prepare_enable(priv->clk);
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ goto err_clk_prepare;
ret = sdhci_add_host(host);
if (ret)
@@ -111,8 +98,8 @@ err_request_cd:
sdhci_remove_host(host, 0);
err_sdhci_add:
clk_disable_unprepare(priv->clk);
+err_clk_prepare:
sdhci_pltfm_free(pdev);
-err_sdhci_pltfm_init:
return ret;
}
@@ -120,7 +107,7 @@ 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;
+ struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
sdhci_pltfm_unregister(pdev);
@@ -136,7 +123,7 @@ 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;
+ struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
int ret;
ret = sdhci_suspend_host(host);
@@ -152,7 +139,7 @@ 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;
+ struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
int ret;
ret = clk_enable(priv->clk);
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 7ae5b3ae7bad..2dba9f8d1760 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -258,7 +258,6 @@ static int sdhci_probe(struct platform_device *pdev)
return 0;
set_drvdata:
- platform_set_drvdata(pdev, NULL);
sdhci_remove_host(host, 1);
free_host:
sdhci_free_host(host);
@@ -278,7 +277,6 @@ static int sdhci_remove(struct platform_device *pdev)
int dead = 0;
u32 scratch;
- platform_set_drvdata(pdev, NULL);
scratch = readl(host->ioaddr + SDHCI_INT_STATUS);
if (scratch == (u32)-1)
dead = 1;
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index e0dba74cff98..5b7b2eba8a54 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -205,7 +205,7 @@ static const struct of_device_id sdhci_tegra_dt_match[] = {
};
MODULE_DEVICE_TABLE(of, sdhci_tegra_dt_match);
-static void sdhci_tegra_parse_dt(struct device *dev)
+static int sdhci_tegra_parse_dt(struct device *dev)
{
struct device_node *np = dev->of_node;
struct sdhci_host *host = dev_get_drvdata(dev);
@@ -213,7 +213,7 @@ static void sdhci_tegra_parse_dt(struct device *dev)
struct sdhci_tegra *tegra_host = pltfm_host->priv;
tegra_host->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
- mmc_of_parse(host->mmc);
+ return mmc_of_parse(host->mmc);
}
static int sdhci_tegra_probe(struct platform_device *pdev)
@@ -231,7 +231,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
return -EINVAL;
soc_data = match->data;
- host = sdhci_pltfm_init(pdev, soc_data->pdata);
+ host = sdhci_pltfm_init(pdev, soc_data->pdata, 0);
if (IS_ERR(host))
return PTR_ERR(host);
pltfm_host = sdhci_priv(host);
@@ -245,7 +245,9 @@ 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);
+ rc = sdhci_tegra_parse_dt(&pdev->dev);
+ if (rc)
+ goto err_parse_dt;
if (gpio_is_valid(tegra_host->power_gpio)) {
rc = gpio_request(tegra_host->power_gpio, "sdhci_power");
@@ -279,6 +281,7 @@ err_clk_get:
if (gpio_is_valid(tegra_host->power_gpio))
gpio_free(tegra_host->power_gpio);
err_power_req:
+err_parse_dt:
err_alloc_tegra_host:
sdhci_pltfm_free(pdev);
return rc;
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 2ea429c27714..a78bd4f3aecc 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -58,6 +58,8 @@ static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
#ifdef CONFIG_PM_RUNTIME
static int sdhci_runtime_pm_get(struct sdhci_host *host);
static int sdhci_runtime_pm_put(struct sdhci_host *host);
+static void sdhci_runtime_pm_bus_on(struct sdhci_host *host);
+static void sdhci_runtime_pm_bus_off(struct sdhci_host *host);
#else
static inline int sdhci_runtime_pm_get(struct sdhci_host *host)
{
@@ -67,6 +69,12 @@ static inline int sdhci_runtime_pm_put(struct sdhci_host *host)
{
return 0;
}
+static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
+{
+}
+static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
+{
+}
#endif
static void sdhci_dumpregs(struct sdhci_host *host)
@@ -192,8 +200,12 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask)
sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET);
- if (mask & SDHCI_RESET_ALL)
+ if (mask & SDHCI_RESET_ALL) {
host->clock = 0;
+ /* Reset-all turns off SD Bus Power */
+ if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)
+ sdhci_runtime_pm_bus_off(host);
+ }
/* Wait max 100 ms */
timeout = 100;
@@ -1268,6 +1280,8 @@ static int sdhci_set_power(struct sdhci_host *host, unsigned short power)
if (pwr == 0) {
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
+ if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)
+ sdhci_runtime_pm_bus_off(host);
return 0;
}
@@ -1289,6 +1303,9 @@ static int sdhci_set_power(struct sdhci_host *host, unsigned short power)
sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);
+ if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)
+ sdhci_runtime_pm_bus_on(host);
+
/*
* Some controllers need an extra 10ms delay of 10ms before they
* can apply clock after applying power
@@ -1526,16 +1543,15 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
/* Select Bus Speed Mode for host */
ctrl_2 &= ~SDHCI_CTRL_UHS_MASK;
- if (ios->timing == MMC_TIMING_MMC_HS200)
- ctrl_2 |= SDHCI_CTRL_HS_SDR200;
+ if ((ios->timing == MMC_TIMING_MMC_HS200) ||
+ (ios->timing == MMC_TIMING_UHS_SDR104))
+ ctrl_2 |= SDHCI_CTRL_UHS_SDR104;
else if (ios->timing == MMC_TIMING_UHS_SDR12)
ctrl_2 |= SDHCI_CTRL_UHS_SDR12;
else if (ios->timing == MMC_TIMING_UHS_SDR25)
ctrl_2 |= SDHCI_CTRL_UHS_SDR25;
else if (ios->timing == MMC_TIMING_UHS_SDR50)
ctrl_2 |= SDHCI_CTRL_UHS_SDR50;
- else if (ios->timing == MMC_TIMING_UHS_SDR104)
- ctrl_2 |= SDHCI_CTRL_UHS_SDR104;
else if (ios->timing == MMC_TIMING_UHS_DDR50)
ctrl_2 |= SDHCI_CTRL_UHS_DDR50;
sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
@@ -1846,7 +1862,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
*/
if (((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR50) &&
(host->flags & SDHCI_SDR50_NEEDS_TUNING ||
- host->flags & SDHCI_HS200_NEEDS_TUNING))
+ host->flags & SDHCI_SDR104_NEEDS_TUNING))
requires_tuning_nonuhs = true;
if (((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR104) ||
@@ -2046,11 +2062,14 @@ static void sdhci_card_event(struct mmc_host *mmc)
struct sdhci_host *host = mmc_priv(mmc);
unsigned long flags;
+ /* First check if client has provided their own card event */
+ if (host->ops->card_event)
+ host->ops->card_event(host);
+
spin_lock_irqsave(&host->lock, flags);
/* Check host->mrq first in case we are runtime suspended */
- if (host->mrq &&
- !(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
+ if (host->mrq && !sdhci_do_get_cd(host)) {
pr_err("%s: Card removed during transfer!\n",
mmc_hostname(host->mmc));
pr_err("%s: Resetting controller.\n",
@@ -2625,6 +2644,22 @@ static int sdhci_runtime_pm_put(struct sdhci_host *host)
return pm_runtime_put_autosuspend(host->mmc->parent);
}
+static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)
+{
+ if (host->runtime_suspended || host->bus_on)
+ return;
+ host->bus_on = true;
+ pm_runtime_get_noresume(host->mmc->parent);
+}
+
+static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)
+{
+ if (host->runtime_suspended || !host->bus_on)
+ return;
+ host->bus_on = false;
+ pm_runtime_put_noidle(host->mmc->parent);
+}
+
int sdhci_runtime_suspend_host(struct sdhci_host *host)
{
unsigned long flags;
@@ -2962,9 +2997,13 @@ int sdhci_add_host(struct sdhci_host *host)
mmc->caps |= MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25;
/* SDR104 supports also implies SDR50 support */
- if (caps[1] & SDHCI_SUPPORT_SDR104)
+ if (caps[1] & SDHCI_SUPPORT_SDR104) {
mmc->caps |= MMC_CAP_UHS_SDR104 | MMC_CAP_UHS_SDR50;
- else if (caps[1] & SDHCI_SUPPORT_SDR50)
+ /* SD3.0: SDR104 is supported so (for eMMC) the caps2
+ * field can be promoted to support HS200.
+ */
+ mmc->caps2 |= MMC_CAP2_HS200;
+ } else if (caps[1] & SDHCI_SUPPORT_SDR50)
mmc->caps |= MMC_CAP_UHS_SDR50;
if (caps[1] & SDHCI_SUPPORT_DDR50)
@@ -2974,9 +3013,9 @@ int sdhci_add_host(struct sdhci_host *host)
if (caps[1] & SDHCI_USE_SDR50_TUNING)
host->flags |= SDHCI_SDR50_NEEDS_TUNING;
- /* Does the host need tuning for HS200? */
+ /* Does the host need tuning for SDR104 / HS200? */
if (mmc->caps2 & MMC_CAP2_HS200)
- host->flags |= SDHCI_HS200_NEEDS_TUNING;
+ host->flags |= SDHCI_SDR104_NEEDS_TUNING;
/* Driver Type(s) (A, C, D) supported by the host */
if (caps[1] & SDHCI_DRIVER_TYPE_A)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 379e09d9f3c1..b037f188fe44 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -294,6 +294,7 @@ struct sdhci_ops {
void (*platform_resume)(struct sdhci_host *host);
void (*adma_workaround)(struct sdhci_host *host, u32 intmask);
void (*platform_init)(struct sdhci_host *host);
+ void (*card_event)(struct sdhci_host *host);
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index ba76a532ae30..6706b5e3b974 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1244,7 +1244,8 @@ static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
u32 state;
state = sh_mmcif_readl(host->addr, MMCIF_CE_INT);
- sh_mmcif_writel(host->addr, MMCIF_CE_INT, ~state);
+ sh_mmcif_writel(host->addr, MMCIF_CE_INT,
+ ~(state & sh_mmcif_readl(host->addr, MMCIF_CE_INT_MASK)));
sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state & MASK_CLEAN);
if (state & ~MASK_CLEAN)
@@ -1369,7 +1370,11 @@ static int sh_mmcif_probe(struct platform_device *pdev)
ret = -ENOMEM;
goto ealloch;
}
- mmc_of_parse(mmc);
+
+ ret = mmc_of_parse(mmc);
+ if (ret < 0)
+ goto eofparse;
+
host = mmc_priv(mmc);
host->mmc = mmc;
host->addr = reg;
@@ -1464,6 +1469,7 @@ eclkupdate:
clk_put(host->hclk);
eclkget:
pm_runtime_disable(&pdev->dev);
+eofparse:
mmc_free_host(mmc);
ealloch:
iounmap(reg);
@@ -1501,8 +1507,6 @@ static int sh_mmcif_remove(struct platform_device *pdev)
if (irq[1] >= 0)
free_irq(irq[1], host);
- platform_set_drvdata(pdev, NULL);
-
clk_disable(host->hclk);
mmc_free_host(host->mmc);
pm_runtime_put_sync(&pdev->dev);
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index fe90853900b4..ebea749297c2 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -46,14 +46,12 @@ static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = {
struct sh_mobile_sdhi {
struct clk *clk;
struct tmio_mmc_data mmc_data;
- struct sh_dmae_slave param_tx;
- struct sh_dmae_slave param_rx;
struct tmio_mmc_dma dma_priv;
};
static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int *f)
{
- struct mmc_host *mmc = dev_get_drvdata(&pdev->dev);
+ struct mmc_host *mmc = platform_get_drvdata(pdev);
struct tmio_mmc_host *host = mmc_priv(mmc);
struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
int ret = clk_enable(priv->clk);
@@ -66,7 +64,7 @@ static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int
static void sh_mobile_sdhi_clk_disable(struct platform_device *pdev)
{
- struct mmc_host *mmc = dev_get_drvdata(&pdev->dev);
+ struct mmc_host *mmc = platform_get_drvdata(pdev);
struct tmio_mmc_host *host = mmc_priv(mmc);
struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
clk_disable(priv->clk);
@@ -121,7 +119,7 @@ static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev)
{
- mmc_detect_change(dev_get_drvdata(&pdev->dev), msecs_to_jiffies(100));
+ mmc_detect_change(platform_get_drvdata(pdev), msecs_to_jiffies(100));
}
static const struct sh_mobile_sdhi_ops sdhi_ops = {
@@ -146,6 +144,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
struct tmio_mmc_host *host;
int irq, ret, i = 0;
bool multiplexed_isr = true;
+ struct tmio_mmc_dma *dma_priv;
priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
if (priv == NULL) {
@@ -154,6 +153,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
}
mmc_data = &priv->mmc_data;
+ dma_priv = &priv->dma_priv;
if (p) {
if (p->init) {
@@ -186,15 +186,23 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
mmc_data->get_cd = sh_mobile_sdhi_get_cd;
if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0) {
- priv->param_tx.shdma_slave.slave_id = p->dma_slave_tx;
- priv->param_rx.shdma_slave.slave_id = p->dma_slave_rx;
- priv->dma_priv.chan_priv_tx = &priv->param_tx.shdma_slave;
- priv->dma_priv.chan_priv_rx = &priv->param_rx.shdma_slave;
- priv->dma_priv.alignment_shift = 1; /* 2-byte alignment */
- mmc_data->dma = &priv->dma_priv;
+ /*
+ * Yes, we have to provide slave IDs twice to TMIO:
+ * once as a filter parameter and once for channel
+ * configuration as an explicit slave ID
+ */
+ dma_priv->chan_priv_tx = (void *)p->dma_slave_tx;
+ dma_priv->chan_priv_rx = (void *)p->dma_slave_rx;
+ dma_priv->slave_id_tx = p->dma_slave_tx;
+ dma_priv->slave_id_rx = p->dma_slave_rx;
}
}
+ dma_priv->alignment_shift = 1; /* 2-byte alignment */
+ dma_priv->filter = shdma_chan_filter;
+
+ mmc_data->dma = dma_priv;
+
/*
* All SDHI blocks support 2-byte and larger block sizes in 4-bit
* bus width mode.
@@ -265,8 +273,10 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
}
/* There must be at least one IRQ source */
- if (!i)
+ if (!i) {
+ ret = irq;
goto eirq;
+ }
}
dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n",
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 139212e79cde..8860d4d2bc22 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -112,8 +112,6 @@ static int tmio_mmc_remove(struct platform_device *pdev)
const struct mfd_cell *cell = mfd_get_cell(pdev);
struct mmc_host *mmc = platform_get_drvdata(pdev);
- platform_set_drvdata(pdev, NULL);
-
if (mmc) {
struct tmio_mmc_host *host = mmc_priv(mmc);
free_irq(platform_get_irq(pdev, 0), host);
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index d857f5c6e7d9..86fd21e00099 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -40,6 +40,22 @@
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;
unsigned long bus_shift;
@@ -48,8 +64,8 @@ struct tmio_mmc_host {
struct mmc_data *data;
struct mmc_host *mmc;
- /* Controller power state */
- bool power;
+ /* Controller and card power state */
+ enum tmio_mmc_power power;
/* Callbacks for clock / power control */
void (*set_pwr)(struct platform_device *host, int state);
@@ -85,6 +101,7 @@ struct tmio_mmc_host {
unsigned long last_req_ts;
struct mutex ios_lock; /* protect set_ios() context */
bool native_hotplug;
+ bool resuming;
};
int tmio_mmc_host_probe(struct tmio_mmc_host **host,
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index fff928604859..47bdb8fa341b 100644
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -261,42 +261,62 @@ out:
spin_unlock_irq(&host->lock);
}
-/* It might be necessary to make filter MFD specific */
-static bool tmio_mmc_filter(struct dma_chan *chan, void *arg)
-{
- dev_dbg(chan->device->dev, "%s: slave data %p\n", __func__, arg);
- chan->private = arg;
- return true;
-}
-
void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata)
{
/* We can only either use DMA for both Tx and Rx or not use it at all */
- if (!pdata->dma)
+ if (!pdata->dma || (!host->pdev->dev.of_node &&
+ (!pdata->dma->chan_priv_tx || !pdata->dma->chan_priv_rx)))
return;
if (!host->chan_tx && !host->chan_rx) {
+ struct resource *res = platform_get_resource(host->pdev,
+ IORESOURCE_MEM, 0);
+ struct dma_slave_config cfg = {};
dma_cap_mask_t mask;
+ int ret;
+
+ if (!res)
+ return;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
- host->chan_tx = dma_request_channel(mask, tmio_mmc_filter,
- pdata->dma->chan_priv_tx);
+ host->chan_tx = dma_request_slave_channel_compat(mask,
+ pdata->dma->filter, pdata->dma->chan_priv_tx,
+ &host->pdev->dev, "tx");
dev_dbg(&host->pdev->dev, "%s: TX: got channel %p\n", __func__,
host->chan_tx);
if (!host->chan_tx)
return;
- host->chan_rx = dma_request_channel(mask, tmio_mmc_filter,
- pdata->dma->chan_priv_rx);
+ if (pdata->dma->chan_priv_tx)
+ cfg.slave_id = pdata->dma->slave_id_tx;
+ cfg.direction = DMA_MEM_TO_DEV;
+ cfg.dst_addr = res->start + (CTL_SD_DATA_PORT << host->bus_shift);
+ cfg.src_addr = 0;
+ ret = dmaengine_slave_config(host->chan_tx, &cfg);
+ if (ret < 0)
+ goto ecfgtx;
+
+ host->chan_rx = dma_request_slave_channel_compat(mask,
+ pdata->dma->filter, pdata->dma->chan_priv_rx,
+ &host->pdev->dev, "rx");
dev_dbg(&host->pdev->dev, "%s: RX: got channel %p\n", __func__,
host->chan_rx);
if (!host->chan_rx)
goto ereqrx;
+ 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.dst_addr = 0;
+ ret = dmaengine_slave_config(host->chan_rx, &cfg);
+ if (ret < 0)
+ goto ecfgrx;
+
host->bounce_buf = (u8 *)__get_free_page(GFP_KERNEL | GFP_DMA);
if (!host->bounce_buf)
goto ebouncebuf;
@@ -310,9 +330,11 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
return;
ebouncebuf:
+ecfgrx:
dma_release_channel(host->chan_rx);
host->chan_rx = NULL;
ereqrx:
+ecfgtx:
dma_release_channel(host->chan_tx);
host->chan_tx = NULL;
}
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index f508ecb5b8a7..b72edb72f7d2 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -859,32 +859,45 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
* is kept positive, so no suspending actually takes place.
*/
if (ios->power_mode == MMC_POWER_ON && ios->clock) {
- if (!host->power) {
+ 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);
tmio_mmc_set_clock(host, ios->clock);
- if (!host->power) {
+ if (host->power == TMIO_MMC_OFF_STOP)
/* power up SD card and the bus */
tmio_mmc_power_on(host, ios->vdd);
- host->power = true;
- }
+ host->power = TMIO_MMC_ON_RUN;
/* start bus clock */
tmio_mmc_clk_start(host);
} else if (ios->power_mode != MMC_POWER_UP) {
- if (host->power) {
- struct tmio_mmc_data *pdata = host->pdata;
- if (ios->power_mode == MMC_POWER_OFF)
+ 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);
- host->power = false;
pm_runtime_put(dev);
if (pdata->clk_disable)
pdata->clk_disable(host->pdev);
}
}
- if (host->power) {
+ 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);
@@ -988,7 +1001,9 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
if (!mmc)
return -ENOMEM;
- mmc_of_parse(mmc);
+ ret = mmc_of_parse(mmc);
+ if (ret < 0)
+ goto host_free;
pdata->dev = &pdev->dev;
_host = mmc_priv(mmc);
@@ -1025,7 +1040,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
mmc->caps & MMC_CAP_NONREMOVABLE ||
mmc->slot.cd_irq >= 0);
- _host->power = false;
+ _host->power = TMIO_MMC_OFF_STOP;
pm_runtime_enable(&pdev->dev);
ret = pm_runtime_resume(&pdev->dev);
if (ret < 0)
@@ -1154,10 +1169,10 @@ 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_reset(host);
tmio_mmc_enable_dma(host, true);
/* The MMC core will perform the complete set up */
+ host->resuming = true;
return mmc_resume_host(mmc);
}
EXPORT_SYMBOL(tmio_mmc_host_resume);
@@ -1175,7 +1190,6 @@ 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_enable_dma(host, true);
return 0;
diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index 442f5766ffca..34231d5168fc 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -927,8 +927,6 @@ static int wmt_mci_remove(struct platform_device *pdev)
mmc_free_host(mmc);
- platform_set_drvdata(pdev, NULL);
-
dev_info(&pdev->dev, "WMT MCI device removed\n");
return 0;