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2007-02-11Merge branch 'for-linus' of ↵Linus Torvalds3-40/+17
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: tifm_sd: treat "status error" as normal command completion mmc: wbsd: Remove stray kunmap_atomic() mmc: sdhci: Stop asking for mail mmc: sdhci: Remove driver version mmc: wbsd: Remove driver version
2007-02-11tifm_sd: treat "status error" as normal command completionAlex Dubov1-7/+4
TI FlasMedia controller attempts to validate command responses and issues a "status error" if response does not matches its perceived (by controller) value. As mmc layer does its own validation we can safely ignore the controller's opinion. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-11mmc: wbsd: Remove stray kunmap_atomic()Pierre Ossman1-1/+0
There was one kunmap_atomic() left over from 4a0ddbd25ad4e03a0a1657f5cb2259c9a35fe9e6 that was causing crashes. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-09[PATCH] TIFM should depend on PCI - TIFM_CORE leads to use of pci primitivesAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09mmc: sdhci: Stop asking for mailPierre Ossman1-24/+11
We get enough error reports without having to ask for it. Remove notices about mailing the development list. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-09mmc: sdhci: Remove driver versionPierre Ossman1-4/+1
The driver version was only really meaningful when it was an out-of-tree driver. Now we can use the version of the kernel. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-09mmc: wbsd: Remove driver versionPierre Ossman1-4/+1
The driver version was only really meaningful when it was an out-of-tree driver. Now we can use the version of the kernel. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: tifm: replace kmap with page_addressPierre Ossman1-11/+4
Since we actively avoid highmem, calling kmap_atomic() instead of page_address() is effectively only obfuscation. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: sdhci: fix voltage ocrPierre Ossman1-2/+2
Some bad if-clauses caused the driver to just report the highest supported voltage, not all. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: sdhci: replace kmap with page_addressPierre Ossman2-19/+6
Since we actively avoid highmem, calling kmap_atomic() instead of page_address() is effectively only obfuscation. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: wbsd: replace kmap with page_addressPierre Ossman2-31/+10
Since we actively avoid highmem, calling kmap_atomic() instead of page_address() is effectively only obfuscation. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: handle pci_enable_device() return value in sdhciPierre Ossman1-1/+3
Make sure we report back any errors from pci_enable_device(). Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Proper unclaim in mmc_blockPierre Ossman1-1/+2
Make sure we release the claim on the host even on failure. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Graceful fallback for fancy featuresPierre Ossman1-9/+7
MMC high-speed, wide bus support and SD high-speed are functions that aren't critical for correct operation of the card. As such, they shouldn't mark the card as bad or dead when there is a failure activating these features. This is needed in particular on some really stupid hardware (e.g. Winbond's) where not all data transfer commands are supported. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Handle wbsd's stupid command listPierre Ossman1-1/+40
The wbsd hardware is so incredibly brain damaged that it has an internal list of commands that result in data transfers. The result being that commands that aren't on this list aren't supported. Instead of locking up, waiting for a data interrupt that will never come, we try to fail a bit more gracefully. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Allow host drivers to specify max block countPierre Ossman12-21/+53
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>
2007-02-04mmc: Allow host drivers to specify a max block sizePierre Ossman11-12/+43
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>
2007-02-04tifm_sd: add suspend and resume functionalityAlex Dubov1-1/+38
Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04Remove unused return value from signal_irq callbackAlex Dubov1-3/+2
Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: prettifyAlex Dubov1-48/+50
This patch introduces no semantic changes - it is here for estetic purposes. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: restructure initialization, removal and command handlingAlex Dubov1-95/+110
In order to support correct suspend and resume several changes were needed: 1. Switch from work_struct to tasklet for command handling. When device suspend is called workqueues are already frozen and can not be used. 2. Separate host initialization code from driver's probe and don't rely on interrupts for host initialization. This, in turn, addresses two problems: a) Resume needs to re-initialize the host, but can not assume that device interrupts were already re-armed. b) Previously, probe will return successfully before really knowing the state of the host, as host interrupts were not armed in time. Now it uses polling to determine the real host state before returning. 3. Separate termination code from driver's remove. Termination may be caused by resume, if media changed type or became unavailable during suspend. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: fix hardware timeout setupAlex Dubov1-8/+7
The register access order when setting hardware timeout was incorrect and causing problems (wrong timeout intervals). This is now fixed. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: Switch software timeout handler from work_struct to timerAlex Dubov1-21/+13
Two changes are introduced to software timeout handler in order to simplify its management: 1. The implementation is switched from work_struct to timer 2. Previously, software timeout was rearmed with each interrupt. Now, current request must complete entirely within timeout interval. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: use kmap_atomic instead of kmap for PIO data bufferAlex Dubov1-27/+25
Data buffer for PIO transfer used to be mapped in advance with kmap. Abolish it in favor of on-demand kmap_atomic. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: alter order of the states in the command handlerAlex Dubov1-20/+37
Previously, stop command was issued right after BRS (block received/sent) event. Stop command completion event could interfere with the card busy event, causing miscount of the written blocks. This patch ensures that stop command issued as last action for a particular command, after DMA sompletion event and written block count verification. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Add support for SDHC cardsPhilip Langdale2-29/+119
Thanks to the generous donation of an SDHC card by John Gilmore, and the surprisingly enlightened decision by the SD Card Association to publish useful specs, I've been able to bash out support for SDHC. The changes are not too profound: i) Add a card flag indicating the card uses block level addressing and check it in the block driver. As we never took advantage of byte-level addressing, this simply involves skipping the block -> byte translation when sending commands. ii) The layout of the CSD is changed - a set of fields are discarded to make space for a larger C_SIZE. We did not reference any of the discarded fields except those related to the C_SIZE. iii) Read and write timeouts are fixed values and not calculated from CSD values. iv) Before invoking SEND_APP_OP_COND, we must invoke the new SEND_IF_COND to inform the card we support SDHC. Signed-off-by: Philipl Langdale <philipl@overt.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Power quirk for ENE controllersDarren Salt1-3/+19
Support for these devices was broken for 2.6.18-rc1 and later by commit 146ad66eac836c0b976c98f428d73e1f6a75270d, which added voltage level support. This restores the previous behaviour for these devices by ensuring that when the voltage is changed, only one write to set the voltage is performed. It may be that both writes are needed if the voltage is being changed between two non-zero values or that it's safe to ensure that only one write is done if the hardware only supports one voltage; I don't know whether either is the case nor can I test since I have only the one SD reader (1524:0550), and it supports just the one voltage. Signed-off-by: Darren Salt <linux@youmustbejoking.demon.co.uk> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: let host be parent of cardsPierre Ossman1-1/+1
Change the parent of cards to be a specific host (a class device), not the physical controller. This is particularly useful when the hardware has multiple slots, meaning multiple hosts. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: replace host->card_busyPierre Ossman1-8/+8
As card_busy was only used to indicate if the host was exclusively claimed and not really used to identify a particular card, replacing it with just a boolean makes things a lot more easily understandable. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: au1xmmc: return errors for unknown response typesManuel Lauss1-0/+6
au1xmmc: return error when encountering unhandled/unknown response type. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: au1xmmc: implement proper ro switch detectionManuel Lauss1-1/+3
au1xmmc: implement proper R/O switch detection. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-01-15mmc: Correct definition of R6Philip Langdale4-11/+2
During development of SDHC support, it was discovered that the definition for R6 was incorrect. This patch fixes that and patches the drivers that do switch on the response type. Signed-off-by: Philip Langdale <philipl@overt.org> Cc: Alex Dubov <oakad@yahoo.com> Cc: Pavel Pisa <ppisa@pikron.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-01-15omap: Update MMC response typesCarlos Eduardo Aguiar1-5/+11
This patch is a fix in order to update MMC response types. This modification is needed to allow SD card support on OMAP platforms. Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br> Signed-off-by: Yuha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-01-10Merge branch 'for-linus' of ↵Linus Torvalds2-9/+8
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: MMC: at91 mmc linkage updates ARM: OMAP: fix MMC workqueue changes
2007-01-08[ARM] Fix potential MMCI bugRussell King1-0/+4
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>
2007-01-04MMC: at91 mmc linkage updatesDavid Brownell1-6/+5
Linker level tweaks for the AT91 MMC driver: - fix a wrongly-exported symbol - move probe() to init section - move remove() to exit section When this driver is statically linked, this patch shrinks the driver's runtime I-space footprint by over 20% (950 bytes). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-01-04ARM: OMAP: fix MMC workqueue changesKyungmin Park1-3/+3
fix OMAP MMC workqueue in recent workqueue change Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC update for 2.6.19Andrew Victor1-17/+24
The driver is usable on the newer SAM9 processors so replace all text references to AT91RM9200 with just AT91. The controller bug where all the words are byte-swapped is fixed on the AT91SAM9 processors. The byte-swapping work-around therefore only needs to be done if cpu_is_at91rm9200(). [Original patch from Wojtek Kaniewski] The AT91RM9200 and AT91SAM9260 processors support two MMC/SD slots - the slot which is connected is now passed via the platform_data and the correct slot selected in the AT91_MCI_SDCR register. The driver should not be calling at91_set_gpio_output() since the VCC pin should have already been configured as an output in the processor/board setup code. The driver should call at91_set_gpio_value(). Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11mmc: Change SDHCI iomem error to a warningPierre Ossman1-2/+2
Some controllers report an invalid iomem size, but seem to work correctly anyway. Change our current error to just a warning and hope it doesn't cause too much problems. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11mmc: fix "prev->state: 2 != TASK_RUNNING??" problem on SD/MMC card removalVitaly Wool1-1/+3
Currently on SD/MMC card removal the system exhibits the following message (the platform is ARM Versatile): prev->state: 2 != TASK_RUNNING?? mmcqd/762[CPU#0]: BUG in __schedule at linux-2.6/kernel/sched.c:3826 (akpm: someone tried to fix this, but it's still wrong) Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 5 : Minor cleanupsAndrew Victor1-9/+9
A number of small cleanups to the AT91RM9200 MMC driver: - fix warnings generated by pr_debug(). - prepend "AT91 MMC:" to printk() messages. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 4 : Interrupt handler cleanupAndrew Victor1-45/+43
This patch simplifies the AT91RM9200 MMC interrupt handler code so that it doesn't re-read the Interrupt Status and Interrupt Mask registers multiple times. Also defined AT91_MCI_ERRORS instead of using the hard-coded 0xffff0000. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 3 : Move global mci_clk variableAndrew Victor1-11/+11
Move the global 'mci_clk' variable into the local 'at91mci_host' structure. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 2 : Use platform resourcesAndrew Victor1-7/+34
Use the I/O base-address and IRQ passed to the driver via the platform_device resources instead of using hardcoded values. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 1: Pass host structure.Andrew Victor1-89/+81
The I/O base address is now stored in the 'at91mci_host' structure. We therefore have to pass this structure to at91_mci_read() and at91_mci_write(). Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-08Merge branch 'for-linus' of ↵Linus Torvalds2-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: mmc: fix au1xmmc build error mmc: pxamci compilation fix
2006-12-08[PATCH] LOG2: Implement a general integer log2 facility in the kernelDavid Howells1-1/+1
This facility provides three entry points: ilog2() Log base 2 of unsigned long ilog2_u32() Log base 2 of u32 ilog2_u64() Log base 2 of u64 These facilities can either be used inside functions on dynamic data: int do_something(long q) { ...; y = ilog2(x) ...; } Or can be used to statically initialise global variables with constant values: unsigned n = ilog2(27); When performing static initialisation, the compiler will report "error: initializer element is not constant" if asked to take a log of zero or of something not reducible to a constant. They treat negative numbers as unsigned. When not dealing with a constant, they fall back to using fls() which permits them to use arch-specific log calculation instructions - such as BSR on x86/x86_64 or SCAN on FRV - if available. [akpm@osdl.org: MMC fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Howells <dhowells@redhat.com> Cc: Wojtek Kaniewski <wojtekka@toxygen.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds3-7/+7
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (76 commits) [ARM] 4002/1: S3C24XX: leave parent IRQs unmasked [ARM] 4001/1: S3C24XX: shorten reboot time [ARM] 3983/2: remove unused argument to __bug() [ARM] 4000/1: Osiris: add third serial port in [ARM] 3999/1: RX3715: suspend to RAM support [ARM] 3998/1: VR1000: LED platform devices [ARM] 3995/1: iop13xx: add iop13xx support [ARM] 3968/1: iop13xx: add iop13xx_defconfig [ARM] Update mach-types [ARM] Allow gcc to optimise arm_add_memory a little more [ARM] 3991/1: i.MX/MX1 high resolution time source [ARM] 3990/1: i.MX/MX1 more precise PLL decode [ARM] 3986/1: H1940: suspend to RAM support [ARM] 3985/1: ixp4xx clocksource cleanup [ARM] 3984/1: ixp4xx/nslu2: Fix disk LED numbering (take 2) [ARM] 3994/1: ixp23xx: fix handling of pci master aborts [ARM] 3981/1: sched_clock for PXA2xx [ARM] 3980/1: extend the ARM Versatile sched_clock implementation from 32 to 63 bit [ARM] 3979/1: extend the SA11x0 sched_clock implementation from 32 to 63 bit period [ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter ...
2006-12-05Merge branch 'master' of ↵David Howells16-243/+525
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/infiniband/core/iwcm.c drivers/net/chelsio/cxgb2.c drivers/net/wireless/bcm43xx/bcm43xx_main.c drivers/net/wireless/prism54/islpci_eth.c drivers/usb/core/hub.h drivers/usb/input/hid-core.c net/core/netpoll.c Fix up merge failures with Linus's head and fix new compilation failures. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-05mmc: fix au1xmmc build errorYoichi Yuasa1-1/+1
This patch has fixed the following build error abou au1xmmc. drivers/mmc/au1xmmc.c: In function `au1xmmc_poll_event': drivers/mmc/au1xmmc.c:835: warning: unused variable `status' drivers/mmc/au1xmmc.c: At top level: drivers/mmc/au1xmmc.c:878: error: parse error before "const" drivers/mmc/au1xmmc.c: In function `au1xmmc_probe': drivers/mmc/au1xmmc.c:909: error: `au1xmmc_ops' undeclared (first use in this function) drivers/mmc/au1xmmc.c:909: error: (Each undeclared identifier is reported only once drivers/mmc/au1xmmc.c:909: error: for each function it appears in.) drivers/mmc/au1xmmc.c: At top level: drivers/mmc/au1xmmc.c:659: warning: 'au1xmmc_request' defined but not used drivers/mmc/au1xmmc.c:719: warning: 'au1xmmc_set_ios' defined but not used make[2]: *** [drivers/mmc/au1xmmc.o] Error 1 make[1]: *** [drivers/mmc] Error 2 make: *** [drivers] Error 2 Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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