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path: root/drivers/mmc/mmci.c
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* mmc: Allow host drivers to specify max block countPierre Ossman2007-02-04
| | | | | | | | | | | | Many controllers have an upper limit on the number of blocks that can be transferred in one request. Allow the host drivers to specify this and make sure we avoid hitting this limit. Also change the max_sectors field to avoid confusion. This makes it map less directly to the block layer limits, but as they didn't apply directly on MMC cards anyway, this isn't a great loss. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* mmc: Allow host drivers to specify a max block sizePierre Ossman2007-02-04
| | | | | | | Most controllers have an upper limit on the block size. Allow the host drivers to specify this and make sure we avoid hitting this limit. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* [ARM] Fix potential MMCI bugRussell King2007-01-08
| | | | | | | | | The MMCI driver might end up aborting the initial command and leaving the data part of the command sequence still in place. Avoid this problem by ensuring that any data sequence is properly cleared out when a command completes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* mmc: constify mmc_host_ops vectorsDavid Brownell2006-12-01
| | | | | | | | Now that mmc_host_ops can be constified, update the various drivers to constify those method tables and shrink the writable data segment. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [MMC] Add multi block-write capabilityRussell King2006-09-16
| | | | | | | | | | | | | | | Add a capability flag for drivers to set when they can perform multi- block transfers to cards _and_ correctly report the number of bytes transferred should an error occur. The last point is very important - if a driver reports more bytes than were actually accepted by the card and an error occurs, there is the possibility for data loss. Pierre Ossman provided the patch for wbsd and sdhci. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MMC] Convert mmci to use data->blksz rather than data->blksz_bitsRussell King2006-09-16
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] irq-flags: misc drivers: Use the new IRQF_ constantsThomas Gleixner2006-07-02
| | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] 64bit resource: fix up printks for resources in misc driversGreg Kroah-Hartman2006-06-27
| | | | | | | | | | This is needed if we wish to change the size of the resource structures. Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [MMC] Move set_ios debugging into mmc.cRussell King2006-05-04
| | | | | | | | Rather than having every driver duplicate the set_ios debugging, provide a single version in mmc.c which can be expanded as we add additional functionality. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MMC] Pass -DDEBUG on compiler command line if MMC_DEBUG selectedRussell King2006-03-29
| | | | | | | | | | Rather than each driver test MMC_DEBUG itself, and define DEBUG, pass it in via the makefile instead. Fix drivers to use pr_debug() where appropriate, and avoid defining a DEBUG() macro. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MMC] mmci: allow small data transfersRussell King2006-02-16
| | | | | | | | | | | If a data transfer is small (less than a FIFO size) we would hang waiting for the data to be read due to the PIO interrupt not occuring. We allowed for this in our PIO interrupt handler, but not when setting up a data transfer. Apply the "fix" when setting up a data transfer as well. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MMC] Add MMC command type flagsRussell King2006-02-02
| | | | | | | Some hosts need to know the command type, so pass it via a set of flags in cmd->flags. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-01-07
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| * [ARM] Move asm/hardware/clock.h to linux/clk.hRussell King2006-01-07
| | | | | | | | | | | | | | This is needs to be visible to other architectures using the AMBA bus and peripherals. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Move AMBA include files to include/linux/amba/Russell King2006-01-07
| | | | | | | | | | | | | | | | | | Since the ARM AMBA bus is used on MIPS as well as ARM, we need to make the bus available for other architectures to use. Move the AMBA include files from include/asm-arm/hardware/ to include/linux/amba/ Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Remove clk_use()/clk_unuse()Russell King2006-01-03
| | | | | | | | | | | | | | | | | | It seems that clk_use() and clk_unuse() are additional complexity which isn't required anymore. Remove them from the clock framework to avoid the additional confusion which they cause, and update all ARM machine types except for OMAP. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [MMC] mmci: kunmap_atomic() unmaps virtual address, not pageEvgeniy Polyakov2006-01-05
| | | | | | | | | | | | Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [MMC] mmci: add data cache coherencyRussell King2006-01-04
|/ | | | | | | | Since MMCI currently uses PIO to read data, we have to take steps to ensure data cache coherency on aliasing CPU caches. Add the necessary flush_dcache_page() calls. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MMC] mmci doesn't need asm/irq.hRussell King2005-11-12
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3/4: Remove asm/hardware.h from Versatile and Integrator io.hRussell King2005-10-28
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MMC] Allow detection/removal to be delayedRichard Purdie2005-09-08
| | | | | | | | | Change mmc_detect_change() to take a delay argument such that the detection of card insertions and removals can be delayed according to the requirements of the host driver or platform. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MMC] Add mmc_hostname() macroRussell King2005-08-19
| | | | | | mmc_hostname() returns a pointer to the hostname for the mmc_host. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] MMC: Fix divdi3 reference in mmci.cRussell King2005-07-01
| | | | | | Use do_div() instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] fix u32 vs. pm_message_t in drivers/mmc,mtd,scsiPavel Machek2005-04-16
| | | | | | | | | This fixes u32 vs. pm_message_t in drivers/mmc, drivers/mtd and drivers/scsi. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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