mmc: spi: Pull out common DMA parts from MXS MMC

These parts will be used by the MXS SPI driver too.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.

mmc: spi: Pull out common DMA parts from MXS MMC

These parts will be used by the MXS SPI driver too.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

show more ...

mmc: spi: Pull out the SSP clock configuration function

Pull out the MMC clock configuration function and make it
into SSP clock configuration function, so it can be used by
the SPI

mmc: spi: Pull out the SSP clock configuration function

Pull out the MMC clock configuration function and make it
into SSP clock configuration function, so it can be used by
the SPI driver too.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

show more ...

mmc: spi: Pull out parts shared between MMC and SPI

Abstract out the common part of private data shared between MMC
and SPI. These shall later allow to use common clock configuration

mmc: spi: Pull out parts shared between MMC and SPI

Abstract out the common part of private data shared between MMC
and SPI. These shall later allow to use common clock configuration
function.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

show more ...

mmc: spi: Rename IMX2[38]_MMC to IMX2[38]_SSP

Since the SSP controller can act as both SPI and MMC host,
renaming the enum to properly reflect the naming seems
appropriate.

mmc: spi: Rename IMX2[38]_MMC to IMX2[38]_SSP

Since the SSP controller can act as both SPI and MMC host,
renaming the enum to properly reflect the naming seems
appropriate.

Based on previous attempt by:
Fabio Estevam <fabio.estevam@freescale.com>

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

show more ...

mmc: spi: Move SSP register definitions into separate file

Move the definitions into separate file so separate SPI driver can be
implemented. The SSP controller in MXS can act both as a

mmc: spi: Move SSP register definitions into separate file

Move the definitions into separate file so separate SPI driver can be
implemented. The SSP controller in MXS can act both as a MMC host and
as a SPI host.

Based on previous attempt by:
Fabio Estevam <fabio.estevam@freescale.com>

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

show more ...

mmc: mxs-mmc: Add wp-inverted property

The write-protect GPIO is inverted on some boards. Handle such case.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball

mmc: mxs-mmc: Add wp-inverted property

The write-protect GPIO is inverted on some boards. Handle such case.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: enable regulator for mmc slot

If bootloader or platform initialization code does not enable the
power supply to mmc slot, we need to do it in mmc driver.

Signed-of

mmc: mxs-mmc: enable regulator for mmc slot

If bootloader or platform initialization code does not enable the
power supply to mmc slot, we need to do it in mmc driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: Move of_match_table out of CONFIG_PM

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

mmc: mxs-mmc: add device tree support

It adds device tree probe support for mxs-mmc driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>

mmc: mxs-mmc: copy wp_gpio in struct mxs_mmc_host

Copy wp_gpio from platform_data into struct mxs_mmc_host, so that
the use of platform_data can be limited in probe function, which
w

mmc: mxs-mmc: copy wp_gpio in struct mxs_mmc_host

Copy wp_gpio from platform_data into struct mxs_mmc_host, so that
the use of platform_data can be limited in probe function, which
will ease the device tree probe.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: have dma_channel than dma_res in mxs_mmc_host

It replaces dma_res with dma_channel in struct mxs_mmc_host, so that
the device tree support will be a little easier, since dm

mmc: mxs-mmc: have dma_channel than dma_res in mxs_mmc_host

It replaces dma_res with dma_channel in struct mxs_mmc_host, so that
the device tree support will be a little easier, since dma channel
can not be retrieved from "struct resource *dma_res".

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: use devm_* helper to make cleanup simpler

Use devm_request_and_ioremap and devm_request_irq helpers to clean up
the code a little bit.

Signed-off-by: Shawn Guo <sh

mmc: mxs-mmc: use devm_* helper to make cleanup simpler

Use devm_request_and_ioremap and devm_request_irq helpers to clean up
the code a little bit.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: move header from mach into linux folder

Rename arch/arm/mach-mxs/include/mach/mmc.h to
include/linux/mmc/mxs-mmc.h, so that mxs-mmc driver becomes
<mach/*> inclusion fr

mmc: mxs-mmc: move header from mach into linux folder

Rename arch/arm/mach-mxs/include/mach/mmc.h to
include/linux/mmc/mxs-mmc.h, so that mxs-mmc driver becomes
<mach/*> inclusion free.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: get rid of the use of cpu_is_xxx

The register HW_SSP_VERSION is broken for ssp version detection,
as the address of the register is different between imx23 and imx28.
L

mmc: mxs-mmc: get rid of the use of cpu_is_xxx

The register HW_SSP_VERSION is broken for ssp version detection,
as the address of the register is different between imx23 and imx28.
Let's use platform_device_id to detect the device, so that the use
of cpu_is_xxx can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: let ssp_is_old take host as parameter

Let macro ssp_is_old take host as parameter to make the code easy
to read.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

mmc: mxs-mmc: let ssp_is_old take host as parameter

Let macro ssp_is_old take host as parameter to make the code easy
to read.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: use global stmp_device functionality

Use global stmp_device functionality to reduce mach-dependency.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mare

mmc: mxs-mmc: use global stmp_device functionality

Use global stmp_device functionality to reduce mach-dependency.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>

show more ...

mmc: mxs-mmc: adopt pinctrl support

Cc: linux-mmc@vger.kernel.org
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>

dma: mxs-dma: enable channel in device_issue_pending call

Enable channel in device_issue_pending call, so that the order between
cookie assignment and channel enabling can be ensured nat

dma: mxs-dma: enable channel in device_issue_pending call

Enable channel in device_issue_pending call, so that the order between
cookie assignment and channel enabling can be ensured naturally.

It fixes the mxs gpmi-nand breakage which is caused by the incorrect
order of cookie assigning and channel enabling.

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Huang Shijie <b32955@freescale.com>
Tested-by <samgandhi9@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

show more ...

Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6

Pull MTD changes from David Woodhouse:
- Artem's cleanup of the MTD API continues apace.
- Fixes and improvements for S

Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6

Pull MTD changes from David Woodhouse:
- Artem's cleanup of the MTD API continues apace.
- Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst
others.
- More work on DiskOnChip G3, new driver for DiskOnChip G4.
- Clean up debug/warning printks in JFFS2 to use pr_<level>.

Fix up various trivial conflicts, largely due to changes in calling
conventions for things like dmaengine_prep_slave_sg() (new inline
wrapper to hide new parameter, clashing with rewrite of previously last
parameter that used to be an 'append' flag, and is now a bitmap of
'unsigned long flags').

(Also some header file fallout - like so many merges this merge window -
and silly conflicts with sparse fixes)

* tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits)
mtd: docg3 add protection against concurrency
mtd: docg3 refactor cascade floors structure
mtd: docg3 increase write/erase timeout
mtd: docg3 fix inbound calculations
mtd: nand: gpmi: fix function annotations
mtd: phram: fix section mismatch for phram_setup
mtd: unify initialization of erase_info->fail_addr
mtd: support ONFI multi lun NAND
mtd: sm_ftl: fix typo in major number.
mtd: add device-tree support to spear_smi
mtd: spear_smi: Remove default partition information from driver
mtd: Add device-tree support to fsmc_nand
mtd: fix section mismatch for doc_probe_device
mtd: nand/fsmc: Remove sparse warnings and errors
mtd: nand/fsmc: Add DMA support
mtd: nand/fsmc: Access the NAND device word by word whenever possible
mtd: nand/fsmc: Use dev_err to report error scenario
mtd: nand/fsmc: Use devm routines
mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform
mtd: fsmc_nand: add pm callbacks to support hibernation
...

show more ...

mxs-dma : rewrite the last parameter of mxs_dma_prep_slave_sg()

[1] Background :
The GPMI does ECC read page operation with a DMA chain consist of three DMA
Command Structure

mxs-dma : rewrite the last parameter of mxs_dma_prep_slave_sg()

[1] Background :
The GPMI does ECC read page operation with a DMA chain consist of three DMA
Command Structures. The middle one of the chain is used to enable the BCH,
and read out the NAND page.

The WAIT4END(wait for command end) is a comunication signal between
the GPMI and MXS-DMA.

[2] The current DMA code sets the WAIT4END bit at the last one, such as:

+-----+ +-----+ +-----+
| cmd | ------------> | cmd | ------------------> | cmd |
+-----+ +-----+ +-----+
^
|
|
set WAIT4END here

This chain works fine in the mx23/mx28.

[3] But in the new GPMI version (used in MX50/MX60), the WAIT4END bit should
be set not only at the last DMA Command Structure,
but also at the middle one, such as:

+-----+ +-----+ +-----+
| cmd | ------------> | cmd | ------------------> | cmd |
+-----+ +-----+ +-----+
^ ^
| |
| |
set WAIT4END here too set WAIT4END here

If we do not set WAIT4END, the BCH maybe stalls in "ECC reading page" state.
In the next ECC write page operation, a DMA-timeout occurs.
This has been catched in the MX6Q board.

[4] In order to fix the bug, rewrite the last parameter of mxs_dma_prep_slave_sg(),
and use the dma_ctrl_flags:
---------------------------------------------------------
DMA_PREP_INTERRUPT : append a new DMA Command Structrue.
DMA_CTRL_ACK : set the WAIT4END bit for this DMA Command Structure.
---------------------------------------------------------

[5] changes to the relative drivers:
<1> For mxs-mmc driver, just use the new flags, do not change any logic.
<2> For gpmi-nand driver, and use the new flags to set the DMA
chain, especially for ecc read page.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Huang Shijie <b32955@freescale.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

show more ...

mxs-dma : move the mxs dma.h to a more common place

Move the header to a more common place.
The mxs dma engine is not only used in mx23/mx28, but also used
in mx50/mx6q. It will als

mxs-dma : move the mxs dma.h to a more common place

Move the header to a more common place.
The mxs dma engine is not only used in mx23/mx28, but also used
in mx50/mx6q. It will also be used in the future chips.

Rename it to mxs-dma.h, and create a new folder include/linux/fsl/ to
store the Freescale's header files.

change mxs-dma driver, mxs-mmc driver, gpmi-nand driver, mxs-saif driver
to the new header file.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Huang Shijie <b32955@freescale.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

show more ...

dmaengine/dma_slave: introduce inline wrappers

Add inline wrappers for device_prep_slave_sg() and device_prep_dma_cyclic()
interfaces to hide new parameter from current users of affected

dmaengine/dma_slave: introduce inline wrappers

Add inline wrappers for device_prep_slave_sg() and device_prep_dma_cyclic()
interfaces to hide new parameter from current users of affected interfaces.
Convert current users to use new wrappers instead of direct calls.
Suggested by Russell King [https://lkml.org/lkml/2012/2/3/269].

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

show more ...

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits)
ARM: mach-shmobile: specify CHCLR registers

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits)
ARM: mach-shmobile: specify CHCLR registers on SH7372
dma: shdma: fix runtime PM: clear channel buffers on reset
dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submit
dmaengine/ste_dma40: clear LNK on channel startup
dmaengine: intel_mid_dma: remove legacy pm interface
ASoC: mxs: correct 'direction' of device_prep_dma_cyclic
dmaengine: intel_mid_dma: error path fix
dmaengine: intel_mid_dma: locking and freeing fixes
mtd: gpmi-nand: move to dma_transfer_direction
mtd: fix compile error for gpmi-nand
mmc: mxs-mmc: fix the dma_transfer_direction migration
dmaengine: add DMA_TRANS_NONE to dma_transfer_direction
dma: mxs-dma: Don't use CLKGATE bits in CTRL0 to disable DMA channels
dma: mxs-dma: make mxs_dma_prep_slave_sg() multi user safe
dma: mxs-dma: Always leave mxs_dma_init() with the clock disabled.
dma: mxs-dma: fix a typo in comment
DMA: PL330: Remove pm_runtime_xxx calls from pl330 probe/remove
video i.MX IPU: Fix display connections
i.MX IPU DMA: Fix wrong burstsize settings
dmaengine/ste_dma40: allow fixed physical channel
...

Fix up conflicts in drivers/dma/{Kconfig,mxs-dma.c,pl330.c}

The conflicts looked pretty trivial, but I'll ask people to verify them.

show more ...

Merge tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

MMC highlights for 3.3:

Core:
* Support for the HS200 high-speed eMMC mode.
* Su

Merge tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

MMC highlights for 3.3:

Core:
* Support for the HS200 high-speed eMMC mode.
* Support SDIO 3.0 Ultra High Speed cards.
* Kill pending block requests immediately if card is removed.
* Enable the eMMC feature for locking boot partitions read-only
until next power on, exposed via sysfs.

Drivers:
* Runtime PM support for Intel Medfield SDIO.
* Suspend/resume support for sdhci-spear.
* sh-mmcif now processes requests asynchronously.

* tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (58 commits)
mmc: fix a deadlock between system suspend and MMC block IO
mmc: sdhci: restore the enabled dma when do reset all
mmc: dw_mmc: miscaculated the fifo-depth with wrong bit operation
mmc: host: Adds support for eMMC 4.5 HS200 mode
mmc: core: HS200 mode support for eMMC 4.5
mmc: dw_mmc: fixed wrong bit operation for SDMMC_GET_FCNT()
mmc: core: Separate the timeout value for cache-ctrl
mmc: sdhci-spear: Fix compilation error
mmc: sdhci: Deal with failure case in sdhci_suspend_host
mmc: dw_mmc: Clear the DDR mode for non-DDR
mmc: sd: Fix SDR12 timing regression
mmc: sdhci: Fix tuning timer incorrect setting when suspending host
mmc: core: Add option to prevent eMMC sleep command
mmc: omap_hsmmc: use threaded irq handler for card-detect.
mmc: sdhci-pci: enable runtime PM for Medfield SDIO
mmc: sdhci: Always pass clock request value zero to set_clock host op
mmc: sdhci-pci: remove SDHCI_QUIRK2_OWN_CARD_DETECTION
mmc: sdhci-pci: get gpio numbers from platform data
mmc: sdhci-pci: add platform data
mmc: sdhci: prevent card detection activity for non-removable cards
...

show more ...

mmc: convert drivers/mmc/host/* to use module_platform_driver()

This patch converts the drivers in drivers/mmc/host/* to use the
module_platform_driver() macro which makes the code small

mmc: convert drivers/mmc/host/* to use module_platform_driver()

This patch converts the drivers in drivers/mmc/host/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Acked-by: David Brown <davidb@codeaurora.org>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

show more ...