You didn't mean this to be a bool.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Tony Olech <tony.olech@elandigitalsystems.com>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Drop the "state" argument from sdhci_suspend_host. Its only user is the
PCI glue; this allows to move all SDHCI glues to use dev_pm_ops instead.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
When getting a cmd irq during an ongoing data transfer
with dma, the dma job were never terminated. This is now
corrected.
Cc: <stable@vger.kernel.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The interrupt was previously enabled and then correctly cleared.
Now we also handle it correctly.
Cc: <stable@vger.kernel.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Use an getter function in plat-orion/addr-map.c to get the address map
structure, rather than pass it to drivers in the platform_data
structures. When the drivers are built for none orion platforms, a
dummy function is provided instead which returns NULL.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Now that the driver is using dev_pm_ops the suspend operations in the
platform_driver structure won't get called so don't need to be there,
and certainly shouldn't be the same function as dev_pm_ops since the
signatures are different.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Do not power down the card in .set_ios(), unless MMC_POWER_OFF is
requested. This fixes the SDHI functionality on ecovec.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Do not power down the card in .set_ios(), unless MMC_POWER_OFF is
requested. This fixes the MMCIF interface functionality on ecovec boards.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Fixes: drivers/mmc/host/sdhci-cns3xxx.c:110: error: 'THIS_MODULE'
undeclared here (not in a function)
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Chris Ball <cjb@laptop.org>
When we can't configure the dma channel we want to fall
back to PIO. We do this by setting host->do_dma to zero.
This does not work as do_dma is used to see whether dma
can be used for the current transfer. Instead, we have
to set host->dma to NULL.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Add pm_caps field to omap2_hsmmc_info and omap_mmc_slot_data
structs, so we will be able to indicate mmc pm capabilities
in the board file.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
When an mmc card has the MMC_PM_KEEP_POWER flag, it shouldn't
be powered off on suspend (and thus doesn't have to be powered-on
on resume)
While on it, change the suspend flow a bit, to make it a bit
easier to follow.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reported by Russell King:
mmcblk0: error -84 transferring data, sector 149201, nr 64,
cmd response 0x900, card status 0xb00
mmcblk0: retrying using single block read
WARNING: at lib/dma-debug.c:811 check_unmap
omap_hsmmc omap_hsmmc.0: DMA-API: device driver tries to free DMA memory
it has not allocated [device address=0x0000000080933000] [size=20480 bytes]
In case of an error dma_unmap() is issued in omap_hsmmc_dma_cleanup()
and then again in omap_hsmmc_post_req(). Resolve this by clearing the
host_cookie to indicate there is no DMA mapped memory to unmap.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Tested-by: Balaji T K <balajitk@ti.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Chris Ball <cjb@laptop.org>
Add basic support for the Au1300 variant(s):
- New GPIO/Interrupt controller
- DBDMA ids
- USB setup
- MMC support
- enable various PSC drivers
- detection code.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2866/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This converts the remaining USB drivers in the kernel to use the
module_usb_driver() macro which makes the code smaller and a bit
simpler.
Added bonus is that it removes some unneeded kernel log messages about
drivers loading and/or unloading.
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Till Harbaum <till@harbaum.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Steve Glendinning <steve.glendinning@smsc.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jesper Juhl <jj@chaosbits.net>
Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: Jamie Iles <jamie@jamieiles.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The following error is seen in some case when mounting rootfs from
SD/MMC cards.
Waiting for root device /dev/mmcblk0p1...
mmc1: host does not support reading read-only switch. assuming write-enable.
mmc1: new high speed SDHC card at address b368
mmcblk0: mmc1:b368 SDC 3.74 GiB
mmcblk0: p1
mmc1: Timeout waiting for hardware interrupt.
mmcblk0: error -110 transferring data, sector 3678224, nr 40, cmd response 0x900, card status 0xc00
end_request: I/O error, dev mmcblk0, sector 3678225
Buffer I/O error on device mmcblk0p1, logical block 458754
lost page write due to I/O error on mmcblk0p1
This patch fixes the problem by lowering the usdhc clock and correcting
watermark configuration.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Chris Ball <cjb@laptop.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
Revert "tracing: Include module.h in define_trace.h"
irq: don't put module.h into irq.h for tracking irqgen modules.
bluetooth: macroize two small inlines to avoid module.h
ip_vs.h: fix implicit use of module_get/module_put from module.h
nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
include: replace linux/module.h with "struct module" wherever possible
include: convert various register fcns to macros to avoid include chaining
crypto.h: remove unused crypto_tfm_alg_modname() inline
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
pm_runtime.h: explicitly requires notifier.h
linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
miscdevice.h: fix up implicit use of lists and types
stop_machine.h: fix implicit use of smp.h for smp_processor_id
of: fix implicit use of errno.h in include/linux/of.h
of_platform.h: delete needless include <linux/module.h>
acpi: remove module.h include from platform/aclinux.h
miscdevice.h: delete unnecessary inclusion of module.h
device_cgroup.h: delete needless include <linux/module.h>
net: sch_generic remove redundant use of <linux/module.h>
net: inet_timewait_sock doesnt need <linux/module.h>
...
Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in
- drivers/media/dvb/frontends/dibx000_common.c
- drivers/media/video/{mt9m111.c,ov6650.c}
- drivers/mfd/ab3550-core.c
- include/linux/dmaengine.h
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (63 commits)
dmaengine: mid_dma: mask_peripheral_interrupt only when dmac is idle
dmaengine/ep93xx_dma: add module.h include
pch_dma: Reduce wasting memory
pch_dma: Fix suspend issue
dma/timberdale: free_irq() on an error path
dma: shdma: transfer based runtime PM
dmaengine: shdma: protect against the IRQ handler
dmaengine i.MX DMA/SDMA: add missing include of linux/module.h
dmaengine: delete redundant chan_id and chancnt initialization in dma drivers
dmaengine/amba-pl08x: Check txd->llis_va before freeing dma_pool
dmaengine/amba-pl08x: Add support for sg len greater than one for slave transfers
serial: sh-sci: don't filter on DMA device, use only channel ID
ARM: SAMSUNG: Remove Samsung specific enum type for dma direction
ASoC: Samsung: Update DMA interface
spi/s3c64xx: Merge dma control code
spi/s3c64xx: Add support DMA engine API
ARM: SAMSUNG: Remove S3C-PL330-DMA driver
ARM: S5P64X0: Use generic DMA PL330 driver
ARM: S5PC100: Use generic DMA PL330 driver
ARM: S5PV210: Use generic DMA PL330 driver
...
Fix up fairly trivial conflicts in
- arch/arm/mach-exynos4/{Kconfig,clock.c}
- arch/arm/mach-s5p64x0/dma.c
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock:
hwspinlock: add MAINTAINERS entries
hwspinlock/omap: omap_hwspinlock_remove should be __devexit
hwspinlock/u8500: add hwspinlock driver
hwspinlock/core: register a bank of hwspinlocks in a single API call
hwspinlock/core: remove stubs for register/unregister
hwspinlock/core: use a mutex to protect the radix tree
hwspinlock/core/omap: fix id issues on multiple hwspinlock devices
hwspinlock/omap: simplify allocation scheme
hwspinlock/core: simplify 'owner' handling
hwspinlock/core: simplify Kconfig
Fix up trivial conflicts (addition of omap_hwspinlock_pdata, removal of
omap_spinlock_latency) in arch/arm/mach-omap2/hwspinlock.c
Also, do an "evil merge" to fix a compile error in omap_hsmmc.c which
for some reason was reported in the same email thread as the "please
pull hwspinlock changes".
* 'next/devel' of git://git.linaro.org/people/arnd/arm-soc: (50 commits)
ARM: tegra: update defconfig
arm/tegra: Harmony: Configure PMC for low-level interrupts
arm/tegra: device tree support for ventana board
arm/tegra: add support for ventana pinmuxing
arm/tegra: prepare Seaboard pinmux code for derived boards
arm/tegra: pinmux: ioremap registers
gpio/tegra: Convert to a platform device
arm/tegra: Convert pinmux driver to a platform device
arm/dt: Tegra: Add pinmux node to tegra20.dtsi
arm/tegra: Prep boards for gpio/pinmux conversion to pdevs
ARM: mx5: fix clock usage for suspend
ARM i.MX entry-macro.S: remove now unused code
ARM i.MX boards: use CONFIG_MULTI_IRQ_HANDLER
ARM i.MX tzic: add handle_irq function
ARM i.MX avic: add handle_irq function
ARM: mx25: Add the missing IIM base definition
ARM i.MX avic: convert to use generic irq chip
mx31moboard: Add poweroff support
ARM: mach-qong: Add watchdog support
ARM: davinci: AM18x: Add wl1271/wlan support
...
Fix up conflicts in:
arch/arm/mach-at91/at91sam9g45.c
arch/arm/mach-mx5/devices-imx53.h
arch/arm/plat-mxc/include/mach/memory.h
We are cleaning up the implicit presence of module.h; these guys are
some of the people who just assume it will be there. Call it out
explitly for those that really need it.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves mmc drivers to use new enum
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (83 commits)
mmc: fix compile error when CONFIG_BLOCK is not enabled
mmc: core: Cleanup eMMC4.5 conditionals
mmc: omap_hsmmc: if multiblock reads are broken, disable them
mmc: core: add workaround for controllers with broken multiblock reads
mmc: core: Prevent too long response times for suspend
mmc: recognise SDIO cards with SDIO_CCCR_REV 3.00
mmc: sd: Handle SD3.0 cards not supporting UHS-I bus speed mode
mmc: core: support HPI send command
mmc: core: Add cache control for eMMC4.5 device
mmc: core: Modify the timeout value for writing power class
mmc: core: new discard feature support at eMMC v4.5
mmc: core: mmc sanitize feature support for v4.5
mmc: dw_mmc: modify DATA register offset
mmc: sdhci-pci: add flag for devices that can support runtime PM
mmc: omap_hsmmc: ensure pbias configuration is always done
mmc: core: Add Power Off Notify Feature eMMC 4.5
mmc: sdhci-s3c: fix potential NULL dereference
mmc: replace printk with appropriate display macro
mmc: core: Add default timeout value for CMD6
mmc: sdhci-pci: add runtime pm support
...
When device data indicates that multiple block reads are not supported
on a given HSMMC controller instance, log a message to the console, and
pass the appropriate MMC capability flag to the MMC core.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Dave Hylands <dhylands@gmail.com>
Tested-by: Steve Sakoman <sakoman@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
* 'clk' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: 7131/1: clkdev: Add Common Macro for clk_lookup
clk: spi-pl022: convert to clk_prepare()/clk_unprepare()
clk: timer-sp: convert to clk_prepare()/clk_unprepare()
clk: sa1111: convert to clk_prepare()/clk_unprepare()
clk: mmci: convert to clk_prepare()/clk_unprepare()
clk: amba-pl011: convert to clk_prepare()/clk_unprepare()
clk: amba-pl010: convert to clk_prepare()/clk_unprepare()
clk: amba-clcd: convert to clk_prepare()/clk_unprepare()
clk: amba bus: convert to clk_prepare()/clk_unprepare()
clk: provide prepare/unprepare functions
In dw_mmc 2.40a spec, Data register's offset is changed.
Before we used Data register offset 0x100. but if somebody uses a
2.40a controller, we must use 0x200 for Data register.
This patch adds a version-id checking point and uses SDMMC_DATA(x)
instead of SDMMC_DATA. It assumes 2.40a is the latest version.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Only allow runtime PM for devices that specifically indicate
that they support it.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Go through the driver's set_power() functions rather than
calling regulator_enable/disable() directly because otherwise
pbias configuration for MMC1 is not done.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This patch adds support for the power off notify feature, available in
eMMC 4.5 devices. If the host has support for this feature, then the
mmc core will notify the device by setting the POWER_OFF_NOTIFICATION
byte in the extended csd register with a value of 1 (POWER_ON).
For suspend mode short timeout is used, whereas for the normal poweroff
long timeout is used.
Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
sc->clk_bus[ptr] could be NULL.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
All the files using printk function for displaying kernel messages
in the mmc driver have been replaced with corresponding macro.
Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Ths patch allows runtime PM for sdhci-pci, runtime suspending after
inactivity of 50ms and ensuring runtime resume before SDHC registers
are accessed. During runtime suspend, interrupts are masked.
The host controller state is restored at runtime resume.
For Medfield, the host controller's card detect mechanism is
supplanted by an always-on GPIO which provides for card detect wake-up.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
We are cleaning up the implicit presence of module.h; these guys are
some of the people who just assume it will be there. Call it out
explitly for those that really need it.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts
disabled], we run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler returns with
interrupts enabled (see commit [b738a50a: genirq: Warn when handler
enables interrupts]).
So now this flag is a NOOP and can be removed.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Intel Medfield platform blocks access to eMMC boot partitions which
results in switch errors. Since there is no access, mmcboot0/1
devices should not be created. Add a host capability to reflect that.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This patch adds the basic support for imx6q usdhc, which is a
derivative of esdhc controller.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Provide platforms with a simplified way to specify MMCIF DMA slave IDs in
a way, similar to SDHI and other sh_dma clients.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Add an SDHCI operation for hardware reset and connect it to the
host controller operation.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
The error condition indicates that mmci_post_request() should cleanup
after the mmci_pre_request(). In this case the resources allocated by
device_prep_slave_sg() are freed by calling dmaengine_terminate_all().
dma_unmap_sg() should always be performed if the host_cookie is set.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Currently if card_power_gpio is passed from platform data, it is acquired
and its value is either set or reset. After that we overwrite it with 1,
which is not required.
So, this patch removes the extra line which sets its value.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Freescale eSDHC registers only support 32-bit accesses, this patch
ensures that all Freescale eSDHC register accesses are 32-bit.
Signed-off-by: Xu lei <B33228@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
The default controller configuration which was previously setup by
platform helper functions is moved into the driver.
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
The previous patch which implemented a DT binding for sdhci-tegra did not
allow all platform data fields to be initialized from DT. The following
were missing:
is_8bit: Implemented by this patch.
pm_flags: Not implemented yet. There are no mainline users of this field.
I'm not quite sure what it's for, and hence how to represent this
in DT; the value ends up being assigned to host->mmc->pm_caps.
While we're at it, fix the binding documentation to refer to "SD/MMC"
instead of "eSDHC", since that's the correct name; "eSDHC" was cut/paste
from the Freescale binding docs.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
The Patch adds the support for SDIO interrupts for all slots.
It includes enabling of SDIO interrupts through dw_mci_enable_sdio_irq
and the handling of the slot specific interrupts in the Interrupt Service
Routine.
Signed-off-by: Shashidhar Hiremath <shashidharh@vayavyalabs.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
If DMA resource is not available then SDCC driver
should atleast work in PIO data transfer mode.
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Intialize busclk_timer before it is accessed in probe.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Not all targets have IRQ1 line routed from the SD controller to
the processor. So we cannot rely on IRQ1 for PIO interrupts.
This patch moves all PIO interrupts to IRQ0 and enables the PIO
mode.
Signed-off-by: Murali Palnati <palnatim@codeaurora.org>
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
On some targets, MCI_IRQ_MASK1 is not routed to the MSM in which
case only "cmd_irq" must be used even for PIO. With this change,
all the targets will use only "cmd_irq" for both CMD and PIO.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
For clocks that support rates which can be set (most clocks other
than _pclk AHB clocks), a rate must be set using clk_set_rate()
before the clock is enabled for the first time with clk_enable().
Subsequent calls to clk_enable() need not be preceded with the
clk_set_rate() calls unless we wish to change the clock rate that
is set previously.
SDC host->clk is currently enabled without setting the clock rate
even once. This patch fixes this, by ensuring that the clock rate
for this clock is first set before enabling the clock.
Signed-off-by: Murali Palnati <palnatim@codeaurora.org>
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This allows boards with non-standard sdio cards to fill the CIS/CCCR data.
It is particularly important for old msm72k boards using wl1251.
Also drop the obsolete embedded_sdio_data structure from the header
as it was intended to surve a similiar purpose but was not implemented.
Signed-off-by: Alexander Tarasikov <alexander.tarasikov@gmail.com>
Acked-by: Sahitya Tummala <stummala@codeaurora.org>
[davidb: minor formatting cleanup]
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
The use of && instead of || caused a NULL pointer dereference if
gpio setup was not passed via platform data
Signed-off-by: Alexander Tarasikov <alexander.tarasikov@gmail.com>
Acked-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Allow named IRQs to use corresponding specific handlers. If named IRQs are
used, at least an "sdcard" IRQ has to be specified by the platform. If
names are not used, an arbitrary number of IRQs can be provided by the
platform, in which case the generic ISR will be used for each of them.
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
[g.liakhovetski@gmx.de: style and typo corrections, platform data check]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Provide separate interrupt handlers which may be used by platforms where
SDHI has three interrupt sources.
This patch also removes the commented-out handling of CRC and other errors.
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
This avoids the need to look up the masks each time an interrupt is handled.
As suggested by Guennadi.
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
The individual SoC dependency in Kconfig hardly scales anymore.
Instead of having such a fine grained dependency just depend
on ARCH_MXC and risk that the uninformed user has to look in
the help text to figure out which driver is the correct one.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Add hooks to read gpio configuration out of the device tree node.
[grant.likely: Rewrite of original patch from John Bonesio]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
[swarren: Fixed tegra_sdhci_get_ro() to retrieve pdata correctly]
[swarren: Reworked to avoid #ifdef CONFIG_OF]
[swarren: Reworked binding based on fsl-imx-esdhc.txt]
[swarren: Documented binding]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Eanble the ADMA2 mode for freescale esdhc imx driver, tested on MX25
3DS board, MX51 BBG board and MX53 LOCO board.
This patch is only used to enable the ADMA2 for MX51/53 platforms.
MX25/35 can't support the ADMA2 mode, set BROKEN_ADMA quirk on
MX25/35 platforms.
The ADMA mode supported or not can be distinguished by bit 20 of
the Capability Register (offset 0x40) in the FSL eSDHC module.
Signed-off-by: Richard Zhu <richard.zhu@linaro.org>
Tested-and-acked-by: Eric Miao <eric.miao@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Remove the use of irq_to_gpio() in the card detection interrupt
handler. The information is available in the board structure and
we can avoid using a function that has little meaning.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This patch fixes a potential issue about PDC interrupts. For example we
have a ENDRX pending interrupt and a RXBUFF pending interrupt. We have
received the RXBUFF interrupt but the transfer is not finished (so we
didn't have time to give a new buffer to the PDC controller). Then we
will compute ENDRX interrupt and we will give a new buffer to the PDC
controller, just after we will compute the RXBUFF interrupt and give
one or two new buffers to the PDC controller but we are not sure that
the first buffer given has been filled. So in this situation we may
have "lost" one sg buffer. It's the same for transmission.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Assuming that a sg buffer size is a page size is false so use sg_dma_len.
A 4096 bytes can be required with two 2048-bytes sg buffer.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Rename atmci_start_command() to atmci_send_command() which is more
appropriate; atmci_start_command suggests we're sending a start command.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Add pdc support for atmel-mci. It makes at91-mci driver useless because it
was only used for the old atmel MCI core which has pdc but no dma support.
To allow removing at91-mci, the capabilities of the MCI core are detected
at runtime -- then the driver will use pio, pdc or dma transfers.
Warning: at91rm9200 is not supported, to support it we need to use swab32
on data but I have no board to test it.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Change atmci_readl and atmci_writel macros: remove string concatenation.
We can use these macros with registers which are not prefixed by ATMCI_.
This is the case if we want to write PDC registers which are common to
several devices so they are not prefixed with ATMCI_.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Now that no driver any longer depends on the CONFIG_SOC_AU1??? symbols,
it's time to get rid of them: Move some of the platform devices to the
boards which can use them, Rename a few (unused) constants in the header,
Replace them with MIPS_ALCHEMY in the various Kconfig files. Finally
delete them altogether from the Alchemy Kconfig file.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2707/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Replace all occurrences of CONFIG_SOC_AU1??? with runtime feature detection.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: linux-mmc@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2683/
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
When indirect inclusion to <mach/hardware.h> via <mach/gpio.h> gets
removed, we will see the following compile error.
CC drivers/mmc/host/mxcmmc.o
drivers/mmc/host/mxcmmc.c: In function ‘mxcmci_init_card’:
drivers/mmc/host/mxcmmc.c:811:2: error: implicit declaration of function ‘cpu_is_mx3’
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This will eventually allow <mach/gpio.h> to be deleted. This mirrors
LinusW's recent equivalent work on various other ARM platforms.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add runtime PM support to the MMCI primecell driver, making use of
the core primecell bus runtime PM support.
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Some devices connected to the MMC bus are power controlled by external
means. For instance, an SDIO device may be powered down/up by an
external gpio line.
In order to avoid toggling power from within the MMC host driver, add a
set_power callback function, which will be called by set_ios upon
powering down/up.
Signed-off-by: Ido Yariv <ido@wizery.com>
CC: Chris Ball <cjb@laptop.org>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This patch removes the samsung specific enum type 's3c2410_dmasrc'
and uses 'dma_data_direction' instead.
Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This patch fixes the problem in sdhci-s3c host driver for Samsung Soc's.
During the card identification stage the mmc core driver enumerates for
the best bus width in combination with the highest available data rate.
It starts enumerating from the highest bus width (8) to lowest width (1).
In case of few MMC cards the 4-bit bus enumeration fails and tries
the 1-bit bus enumeration. When switched to 1-bit bus mode the host driver
has to clear the previous bus width setting and apply the new setting.
The current patch will clear the previous bus mode and apply the new
mode setting.
Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This corrects a logic error that I introduced in
"mmc: sdhi: Add write16_hook"
Reported-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
There are the following warnings and errorx when compiling the driver.
The patch adds the missing inclusion of linux/module.h to fix them.
drivers/mmc/host/sdhci-esdhc-imx.c:563:12: error: ‘THIS_MODULE’ undeclared here (not in a function)
[..]
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Host driver can't get a hint of DDR mode through ios->ddr flag anymore.
ios->timing is currently used to inform DDR mode as a substitute.
And capability of MMC_CAP_MMC_HIGHSPEED is added for DDR support.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
When timeout_clk is calculated the host->clock could be zero.
So, instead of host->clock the calculation now uses mmc->f_max.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This moves the calculation below the assignment of mmc->f_max, which
we need for calculating timeout_clk in the next patch in this series.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This reverts commit 4b01681c77, which introduced a new potential
divide by zero in the process of fixing one. The subsequent commits
attempt to fix the issue properly.
Signed-off-by: Chris Ball <cjb@laptop.org>
Fix below compile warning:
CC drivers/mmc/host/tmio_mmc.o
drivers/mmc/host/tmio_mmc.c: In function 'tmio_mmc_suspend':
drivers/mmc/host/tmio_mmc.c:30: warning: unused variable 'mmc'
drivers/mmc/host/tmio_mmc.c: In function 'tmio_mmc_resume':
drivers/mmc/host/tmio_mmc.c:45: warning: unused variable 'mmc'
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Apply a workaround for the imx eSDHC controller to avoid missing
card interrupts. This makes SDIO work.
Signed-off-by: Tony Lin <tony.lin@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
A header change has removed an implicit inclusion of module.h, breaking
the build due to the use of THIS_MODULE. Fix that.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
The mask used inside this macro was assuming Buffer_Size1's [BS1's]
width to be 14 bits, it is actually 13 bits. Modify masks used in
IDMAC_SET_BUFFER1_SIZE such that they use only 13 bits instead of
current 14.
Signed-off-by: Shashidhar Hiremath <shashidharh@vayavyalabs.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Samsung SoCs need to set BROKEN_ADMA_ZEROLEN_DESC.
(If ADMA operation is more than 65535, maybe set by zero.)
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Enable the quirk.
(Best used in conjunction with patch downgrading ADMA to SDMA when
transfer is not aligned.)
Signed-off-by: Philip Rakity <prakity@marvell.com>
Acked-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Currently, the retuning timer for retuning mode 1 will be deleted in
function sdhci_tasklet_finish after a mmc request done, which will make
retuning timing never trigger again. This patch fixed this problem.
Signed-off-by: Aaron Lu <Aaron.Lu@amd.com>
Reviewed-by: Philip Rakity <prakity@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
The patch adds device tree probe support for sdhci-esdhc-imx driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Chris Ball <cjb@laptop.org>
Neither platform based nor dt based device needs to pass the parent
to sdhci_alloc_host. There is no difference between platform and dt
on this point.
The patch makes the change to pass device itself than its parent to
sdhci_alloc_host for dt case too. Otherwise the probe function of
sdhci based drivers which is shared between platform and dt will
fail on dt case.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Chris Ball <cjb@laptop.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Chris Ball <cjb@laptop.org>
The patch removes all the uses of cpu_is_mx(). Instead, it utilizes
platform_device_id to distinguish the esdhc differences among SoCs.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Chris Ball <cjb@laptop.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Chris Ball <cjb@laptop.org>
The patch copies platform data into pltfm_imx_data and reference
the data there than platform data after probe.
This work is inspired by Grant Likely and Troy Kisky.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Chris Ball <cjb@laptop.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Chris Ball <cjb@laptop.org>
The patch extends card_detect and write_protect support to get mx5
family and more scenarios supported. The changes include:
* Turn platform_data from optional to mandatory
* Add cd_types and wp_types into platform_data to cover more use
cases
* Remove the use of flag ESDHC_FLAG_GPIO_FOR_CD
* Adjust some machine codes to adopt the platform_data changes
* Work around the issue that software reset will get card detection
circuit stop working
With this patch, card_detect and write_protect gets supported on
mx5 based platforms.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Chris Ball <cjb@laptop.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Acked-by: Chris Ball <cjb@laptop.org>
Fix build issue caused by undefined struct scatterlist in
drivers/mmc/host/tmio_mmc.c.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
fs: Merge split strings
treewide: fix potentially dangerous trailing ';' in #defined values/expressions
uwb: Fix misspelling of neighbourhood in comment
net, netfilter: Remove redundant goto in ebt_ulog_packet
trivial: don't touch files that are removed in the staging tree
lib/vsprintf: replace link to Draft by final RFC number
doc: Kconfig: `to be' -> `be'
doc: Kconfig: Typo: square -> squared
doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
drivers/net: static should be at beginning of declaration
drivers/media: static should be at beginning of declaration
drivers/i2c: static should be at beginning of declaration
XTENSA: static should be at beginning of declaration
SH: static should be at beginning of declaration
MIPS: static should be at beginning of declaration
ARM: static should be at beginning of declaration
rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
Update my e-mail address
PCIe ASPM: forcedly -> forcibly
gma500: push through device driver tree
...
Fix up trivial conflicts:
- arch/arm/mach-ep93xx/dma-m2p.c (deleted)
- drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
- drivers/net/r8169.c (just context changes)
* 'next/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (35 commits)
ARM: msm: platsmp: determine number of CPU cores at boot time
ARM: Tegra: Seaboard: Fix I2C bus numbering for ADT7461
ARM: Tegra: Trimslice: Tri-state DAP3 pinmux
ARM: orion5x: fixup 5181 MPP mask check
ARM: mxs-dma: include <linux/dmaengine.h>
ARM: i.MX53: consistently use MX53_UART_PAD_CTRL for uart txd/rxd/rts/cts
ARM: i.MX53: UARTn_CTS pin should not change RTS input select
ARM: i.MX53: UARTn_TXD pin should not change RXD input select
ARM: mx25: Fix typo on CAN1_RX pad setting
iomux-mx53: add missing 'IOMUX_CONFIG_SION' for some I2C pad definitions
ARM: NUC93X: add UL suffix to VMALLOC_END to ensure it is properly typed
ARM: LPC32XXX: add UL suffix to VMALLOC_END to ensure it is properly typed
ARM: CNS3XXX: add UL suffix to VMALLOC_END to ensure it is properly typed
ARM: i.MX53: Fix IOMUX type o's
ARM i.MX dma: Fix burstsize settings
mach-mx5: fix the I2C clock parents
ARM: mxs/tx28: according to the TX28's datasheet D4-D7 are not used for MMC0
ARM i.MX23/28: platform-mxsfb: Add missing include of linux/dma-mapping.h
ARM: mx53: Fix some interrupts marked as reserved.
MXC: iomux-v3: correct NO_PAD_CTRL definition
...
Fix up trivial conflict in arch/arm/mach-imx/mach-mx31_3ds.c
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (237 commits)
ARM: 7004/1: fix traps.h compile warnings
ARM: 6998/2: kernel: use proper memory barriers for bitops
ARM: 6997/1: ep93xx: increase NR_BANKS to 16 for support of 128MB RAM
ARM: Fix build errors caused by adding generic macros
ARM: CPU hotplug: ensure we migrate all IRQs off a downed CPU
ARM: CPU hotplug: pass in proper affinity mask on IRQ migration
ARM: GIC: avoid routing interrupts to offline CPUs
ARM: CPU hotplug: fix abuse of irqdesc->node
ARM: 6981/2: mmci: adjust calculation of f_min
ARM: 7000/1: LPAE: Use long long printk format for displaying the pud
ARM: 6999/1: head, zImage: Always Enter the kernel in ARM state
ARM: btc: avoid invalidating the branch target cache on kernel TLB maintanence
ARM: ARM_DMA_ZONE_SIZE is no more
ARM: mach-shark: move ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
ARM: mach-sa1100: move ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
ARM: mach-realview: move from ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
ARM: mach-pxa: move from ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
ARM: mach-ixp4xx: move from ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
ARM: mach-h720x: move from ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
ARM: mach-davinci: move from ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1287 commits)
icmp: Fix regression in nexthop resolution during replies.
net: Fix ppc64 BPF JIT dependencies.
acenic: include NET_SKB_PAD headroom to incoming skbs
ixgbe: convert to ndo_fix_features
ixgbe: only enable WoL for magic packet by default
ixgbe: remove ifdef check for non-existent define
ixgbe: Pass staterr instead of re-reading status and error bits from descriptor
ixgbe: Move interrupt related values out of ring and into q_vector
ixgbe: add structure for containing RX/TX rings to q_vector
ixgbe: inline the ixgbe_maybe_stop_tx function
ixgbe: Update ATR to use recorded TX queues instead of CPU for routing
igb: Fix for DH89xxCC near end loopback test
e1000: always call e1000_check_for_link() on e1000_ce4100 MACs.
netxen: add fw version compatibility check
be2net: request native mode each time the card is reset
ipv4: Constrain UFO fragment sizes to multiples of 8 bytes
virtio_net: Fix panic in virtnet_remove
ipv6: make fragment identifications less predictable
ipv6: unshare inetpeers
can: make function can_get_bittiming static
...
Fix clock rate setting in the mxs-mmc driver. Previously, if div2 was 0
then the value for TIMING_CLOCK_RATE would have been 255 instead of 0.
The limits for div1 (TIMING_CLOCK_DIVIDE) and div2 (TIMING_CLOCK_RATE+1)
were also not correctly defined.
Can easily be reproduced on mx23evk: default clock for high speed sdio
cards is 50 MHz. With a SSP_CLK of 28.8 MHz default), this resulted in
an actual clock rate of about 56 kHz. Tested on mx23evk.
Signed-off-by: Koen Beel <koen.beel@barco.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Currently the tmio-mmc driver contains a recursive runtime PM method
invocation, which leads to a deadlock on a mutex. Avoid it by taking
care not to request DMA too early.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
A recent commit "mmc: tmio: Share register access functions" has swapped
arguments of a macro and broken DMA with TMIO MMC. This patch fixes the
arguments back.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
This patch uses runtime PM to allow the system to power down the MMC
controller, when the MMC closk is switched off.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
This patch uses runtime PM to allow the system to power down the MMC
controller, when the MMC closk is switched off.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Calling mmc_request_done() under a spinlock with interrupts disabled
leads to a recursive spin-lock on request retry path and to
scheduling in atomic context. This patch fixes both these problems
by moving mmc_request_done() to the scheduler workqueue.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
In the case of an I/O error, the DMA will have been cleaned up in
the MMC interrupt and the request structure pointer will be null.
In that case, it is essential to check if the DMA is over before
dereferencing host->mrq->data.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
There are a few places with the same functionality. This patch creates
two functions omap_hsmmc_set_bus_width() and omap_hsmmc_set_bus_mode()
to do the job.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
There are two pieces of code which are similar, but not the same.
Each of them contains a bug.
The SYSCTL register should be read before writing to it in
omap_hsmmc_context_restore() to retain the state of the reserved bits.
Before setting the clock divisor and DTO bits the value from the SYSCTL
register should be masked properly. We were lucky to have no problems
with DTO bits. So, make sure we have clear DTO bits properly in
omap_hsmmc_set_ios().
Additionally get rid of msleep(1). The actual time is rarely higher
than 30us on OMAP 3630.
The resulting pieces of code are refactored into the
omap_hsmmc_set_clock() function.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
There is similar code in two functions which enable the clock. Refactor
this code to omap_hsmmc_start_clock(). Re-use omap_hsmmc_stop_clock() in
omap_hsmmc_context_restore() as well.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
There are two places where the same calculations are done.
Let's split them into a separate function.
In addition, simplify by using the DIV_ROUND_UP kernel macro.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Move the min and max frequency constants to the definition block in
the source file.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
CERR and BADA were in the wrong place and there are only
32 not 35.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Reviewed-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
After runtime conversion to handle clk, iclk node is not used.
However fclk node is still used to get clock rate.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
* Add runtime pm support to HSMMC host controller.
* Use runtime pm API to enable/disable HSMMC clock.
* Use runtime autosuspend APIs to enable auto suspend delay.
Based on OMAP HSMMC runtime implementation by Kevin Hilman and
Kishore Kadiyala.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
lazy_disable framework in OMAP HSMMC manages multiple low power states and
card is powered off after inactivity time of 8 seconds. Based on previous
discussion on the list, card power (regulator) handling (when to power
OFF/ON) should ideally be handled by core layer. Remove usage of lazy
disable to allow core layer _only_ to handle card power. With the removal
of lazy disable framework, MMC regulators are left ON until MMC_POWER_OFF
via set_ios.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
pre_req() runs dma_map_sg() and prepares the dma descriptor for the next
mmc data transfer. post_req() runs dma_unmap_sg. If not calling pre_req()
before mmci_request(), mmci_request() will prepare the cache and dma just
like it did it before. It is optional to use pre_req() and post_req()
for mmci.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
pre_req() runs dma_map_sg(), post_req() runs dma_unmap_sg. If not calling
pre_req() before omap_hsmmc_request(), dma_map_sg will be issued before
starting the transfer. It is optional to use pre_req(). If issuing
pre_req(), post_req() must be called as well.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Reviewed-by: Venkatraman S <svenkatr@ti.com>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This driver has been used for years with this option enabled.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Take care of slots while going to suspend state.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Unless MMC_CAP_8_BIT_DATA is set, the bus width defaults to 4.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
And hook platform_8bit_width to support 8-bit bus width.
Signed-off-by: Major Lee <major_lee@wistron.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
If an error occurs mid way through a transaction (such as a missing CRC
status response after the 2nd block written out of 3), then the FIFO may
still contain data which will interfere with the next transaction.
Therefore after an error has been detected, reset the fifo using the
CTRL register.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
When a data write isn't acknowledged by the card (so no CRC status token
is detected after the data), the error -EIO is returned instead of the
-ETIMEDOUT expected by mmc_test 15 - "Correct xfer_size at write (start
failure)" and 17 "Correct xfer_size at write (midway failure)". In PIO
mode the reported number of bytes transferred is also exaggerated since
the last block actually failed.
Handle the "Write no CRC" error specially, setting the error to
-ETIMEDOUT and setting the bytes_xferred to 0.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Remove error messages for timeout and CRC failure, since the error code
already indicates the problem.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
There are several situations when dw_mci_submit_data_dma() decides to
fall back to PIO mode instead of using DMA, due to a short (to avoid
overhead) or "complex" (e.g. with unaligned buffers) transaction, even
though host->use_dma is set. However dw_mci_stop_dma() decides whether
to stop DMA or set the EVENT_XFER_COMPLETE event based on host->use_dma.
When falling back to PIO mode this results in data timeout errors
getting missed and the driver locking up.
Therefore add host->using_dma to indicate whether the current
transaction is using dma or not, and adjust dw_mci_stop_dma() to use
that instead.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Wonil Choi <wonil22.choi@samsung.com>
Signed-off-by: Minho Ban <mhban@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
In general, SDHC hardware timeout cannot be avoided.
Accordingly, the maximum timeout is specified to limit
the maximum discard size.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
The use of flag ESDHC_FLAG_GPIO_FOR_CD_WP is all CD related. It does
not necessarily need to bother WP in the flag name.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
The function esdhc_readl_le intends to clear bit SDHCI_CARD_PRESENT,
when the card detect gpio tells there is no card. But it does not
clear the bit actually. The patch gives a fix on that.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
The issue was initially found by Eric Benard as below.
http://permalink.gmane.org/gmane.linux.ports.arm.kernel/108031
Not sure about other SDHCI based controller, but on Freescale eSDHC,
the SDHCI_INT_CARD_INSERT bits will be immediately set again when it
gets cleared, if a card is inserted. The driver need to mask the irq
to prevent interrupt storm which will freeze the system. And the
SDHCI_INT_CARD_REMOVE gets the same situation.
The patch fixes the problem based on the initial idea from
Eric Benard.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Eric Benard <eric@eukrea.com>
Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
There is a race condition in the tmio_mmc_irq() interrupt handler,
caused by the presence of a while loop, which results in warnings of
spurious interrupts. This was found on an HP iPAQ hx4700 whose HTC
ASIC3 reportedly incorporates the Toshiba TC6380AF controller.
Towards the end of a multiple read (CMD18) operation the handler clears
the final RXRDY status bit in the first loop iteration, sees the DATAEND
status bit at the bottom of the loop, and so clears the DATAEND status
bit in the second loop iteration. However the DATAEND interrupt is still
queued in the system somewhere and can't be delivered until the handler
has returned. This second interrupt is then reported as spurious in the
next call to the handler. Likewise for single read (CMD17) operations.
And something similar occurs for multiple write (CMD25) and single write
(CMD24) operations, where CMDRESPEND and TXRQ status bits are cleared in
a single call.
In these cases the interrupt handler clears two separate interrupts when
it should only clear the one interrupt for which it was invoked. The fix
is to remove the while loop.
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Only compile tmio_mmc_dma.o when CONFIG_MMC_SDHI is selected (as y or m).
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Update functions for PIO pushing and pulling data to and from the FIFO
so that they can handle unaligned output buffers and unaligned buffer
lengths. This makes more of the tests in mmc_test pass.
Unaligned lengths in pulls are handled by reading the full FIFO item,
and storing the remaining bytes in a small internal buffer (part_buf).
The next data pull will copy data out of this buffer first before
accessing the FIFO again. Similarly, for pushes the final bytes that
don't fill a FIFO item are stored in the part_buf (or sent anyway if
it's the last transfer), and then the part_buf is included at the
beginning of the next buffer pushed.
Unaligned buffers in pulls are handled specially if the architecture
cannot do efficient unaligned accesses, by reading FIFO items into a
aligned local buffer, and memcpy'ing them into the output buffer, again
storing any remaining bytes in the internal buffer. Similarly for pushes
the buffer is memcpy'd into an aligned local buffer then written to the
FIFO.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
