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path: root/drivers/ide
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2007-07-08qd65xx: fix PIO mode selectionBartlomiej Zolnierkiewicz
PIO4 is a maximum PIO mode supported by a driver. Using "255" as a max_mode argument to ide_get_best_pio_mode() could result in wrong timings being used by a driver (for "pio" equal to 5) or OOPS (for "pio" values > 5 && < 255). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Reviewed-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
2007-07-08sis5513: adding PCI-IDUwe Koziolek
The SiS966 has one additional PCI-ID 1180. If the chipset is using this PCI-ID, the primary channel is connected to the first PATA-port. The secondary channel is connected to SATA-ports in IDE emulation mode. The legacy IO-ports are used. The including of the PCI-ID into pata_sis is not sufficient, because the legacy driver in drivers/ide is initialized before pata_sis. Signed-off-by: Uwe Koziolek <uwe.koziolek@gmx.net> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-03ide: ide_scan_pcibus(): check __pci_register_driver return valueAndrew Morton
drivers/ide/setup-pci.c: In function 'ide_scan_pcibus': drivers/ide/setup-pci.c:879: warning: ignoring return value of '__pci_register_driver', declared with attribute warn_unused_result Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-03ide: pdc202xx_new PLL input clock fixAlbert Lee
Recently the PLL input clock of Promise 2027x is sometimes detected higher than expected (e.g. 20.027 MHz compared to 16.714 MHz). It seems sometimes the mdelay() function is not as precise as it used to be. Per Alan's advice, HT or power management might affect the precision of mdelay(). This patch calls gettimeofday() to measure the time elapsed and calculate the PLL input clock accordingly. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bahadir Balban <bahadir.balban@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-03it821x: fix incorrect SWDMA maskBartlomiej Zolnierkiewicz
SWDMA modes are unsupported by it821x. Attempts to tune SWDMA modes always fail (due to sanity check in ->speedproc) and result in PIO being tuned. * Fix incorrect SWDMA mask so core code won't try these modes and will just tune PIO if no other DMA modes are available. * Bump driver version. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
2007-07-03amd74xx: resume fixBartlomiej Zolnierkiewicz
* Driver can't skip programming transfer mode on the device in amd_set_drive() (similar fix has been applied to via82cxxx driver ages ago). * While at it remove redundant warning (ide_config_drive_speed() already produces more valuable one). * Bump driver version. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-03hpt366: use correct enablebits for HPT36xSergei Shtylyov
The HPT36x chips finally turned out to have the channel enable bits -- however, badly implemented. Make use of them despite it's probably only going to burden the driver's code -- assuming both channels are always enabled by the HighPoint BIOS anyway... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Linas Vepstas <linas@austin.ibm.com> Cc: michal.kepien@poczta.onet.pl Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-03hpt366: blacklist MAXTOR STM3320620A for UltraDMA/66Sergei Shtylyov
Add the MAXTOR STM3320620A drive into the UltraDMA/66 mode blacklist for the HPT36x chips. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-03ide: Fix a theoretical Ooops caseAlan Cox
Found by a static analyser. It is in theory possible we dereference dev->id when it has become invalid. Re-order to avoid this. Not needed for new-ide as we no longer support the crazy exabyte nest stuff Signed-off-by: Alan Cox <alan@redhat.com> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-03ide: never called printk statement in ide-taskfile.c::wait_drive_not_busyMasatake YAMATO
Look at wait_drive_not_busy in drivers/ide/ide-taskfile.c: static u8 wait_drive_not_busy(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); int retries = 100; u8 stat; /* * Last sector was transfered, wait until drive is ready. * This can take up to 10 usec, but we will wait max 1 ms * (drive_cmd_intr() waits that long). */ while (((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && retries--) udelay(10); if (!retries) printk(KERN_ERR "%s: drive still BUSY!\n", drive->name); return stat; } `printk' is never called because `retries' never holds zero at the outside of `while' loop: when `retries' holds zero at the while's loop condition, `retries' will hold -1 at the if condition. Signed-off-by: Masatake YAMATO <jet@gyve.org> Cc: Chuck Ebbert <cebbert@redhat.com> Cc: joe@perches.com Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-16Resume from RAM on HPC nx6325 brokenRafael J. Wysocki
generic_ide_resume() should check if dev->driver is not NULL before applying to_ide_driver() to it. Fix that. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-08ide: Add the MCP73/77 support to PATA driverPeer Chen
Add the MCP73/MCP77 support to PATA driver. bart: Added amd74xx_chipsets[] and amd_pci_tbl[] entries. bart: Bumped driver version. Signed-off-by: Peer Chen <peerchen@gmail.com> Cc: Alan Cox <alan@redhat.com>, Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-08hpt366: disallow Ultra133 for HPT374Sergei Shtylyov
Eliminate UltraATA/133 support for HPT374 -- the chip isn't capable of this mode according to the manual, and doesn't even seem to tolerate 66 MHz DPLL clock... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Geller Sandor <wildy@petra.hos.u-szeged.hu> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-08ide: generic IDE PCI driver, add another device exceptionJiri Slaby
generic IDE PCI driver, add another device exception This device is char device and is grabbed by generic ide driver: 00:0b.0 Class ffff: National Semiconductor Corporation 87410 IDE (rev ff) (prog-if ff) Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Disallow generic IDE PCI driver to grab it by adding next condition. Also consolidate exceptions to one bigger 'switch (dev->vendor)'. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Ingo Korb <ml@akana.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-08ide: HPA detect from resumeLee Trager
Currently when system which have HPA require HPA to be detected and disabled upon resume from RAM or disk. The current IDE drivers do not do this nor does libata (obviously it since it doesn't support HPA yet). I have implemented this into the current IDE drivers and it has been tested by many others since 7/15/2006 in bug number 6840: http://bugzilla.kernel.org/show_bug.cgi?id=6840 and it has been confirmed to work fine with no problems. bart: added drv != NULL check to generic_ide_suspend() From: Lee Trager <lt73@cs.drexel.edu> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-08it821x: RAID mode fixesBartlomiej Zolnierkiewicz
The DMA support for RAID mode broke after: commit 71ef51cc1756d1c56b57c70e7cc27a3559c81ee6 Author: Jens Axboe <axboe@suse.de> Date:   Fri Jul 28 09:02:17 2006 +0200     [PATCH] it821x: fix ide dma setup bug     Only enable dma for a valid speed setting.     Signed-off-by: Jens Axboe <axboe@suse.de> commit 0a8348d08677ad77ee353f96eb8745c693a05a13 Author: Jens Axboe <axboe@suse.de> Date:   Fri Jul 28 08:58:26 2006 +0200     [PATCH] ide: if the id fields looks screwy, disable DMA     It's the safer choice. Originally due to a bug in itx821x, but a     generally sound thing to do.     Signed-off-by: Jens Axboe <axboe@suse.de> However it worked by pure luck before Jens' fixes: bogus ide_dma_enable() usage in it821x driver combined with loosy check in ide_dma_verbose() allowed the hardware to operate in DMA mode. When these problems were fixed the DMA support broke... The source root for the regression turned out to be that the it821x.c code was clearing too much of id->field_valid. The IDE core code was using the original value of id->field_valid to do the tuning but later DMA got disabled in ide_dma_verbose() because of the incorrect id->field_valid fixup. Fix it. While at it: * Do fixup() after probing the drives but before tuning them (which is also OK w.r.t. ide_undecoded_slave() fixup). This change fixes device IDENTIFY data to be consistent before/after the tuning and allows us to remove extra re-tuning of drives from it821x_fixups(). * Fake MWDMA0 enabled/supported bits in IDENTIFY data if the device has DMA capable bit set (this is just to tell the IDE core that DMA is supported since it821x firmware takes care of DMA mode programming). * Don't touch timing registers and don't program transfer modes on devices et all when in RAID mode - depend solely on firmware to do the tuning (as suggested by Alan Cox and done in libata pata_it821x driver). Thanks for testing the patch goes out to Thomas Kuther. Cc: Thomas Kuther <gimpel@sonnenkinder.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-08serverworks: fix CSB6 tuning logicBartlomiej Zolnierkiewicz
Problem noticed by Joe Zbiciak, see http://kerneltrap.org/node/8252 for details. On CSB6 the driver is using BIOS settings and not programming DMA/PIO timings itself. However the logic was completely broken and resulted in wrong timings being silently allowed (instead of being corrected by the driver). This bug would explain some data corruption/timeout issues with Serverworks MegaIDE in RAID mode that Alan Cox has fixed recently with: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2074a106f52b6371885afbd714e929d60d0e3f64 For 2.6.23 we may be better off with completely switching the driver to always programming timings (libata pata_serverworks.c driver is doing things this way and there were no problems reported so far) but for 2.6.22 lets fix the bug in the simplest and the least intrusive way. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-06-08serverworks: remove crappy codeBartlomiej Zolnierkiewicz
Remove crappy code noticed by Linus, see http://lkml.org/lkml/2007/5/23/476 for details. While at it simplify logic a bit. There should be no functionality changes caused by this patch. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-24ide serverworks warning fixesAndrew Morton
gcc-4.3: drivers/ide/pci/serverworks.c: In function 'svwks_tune_chipset': drivers/ide/pci/serverworks.c:176: warning: overflow in implicit constant conversion drivers/ide/pci/serverworks.c:190: warning: overflow in implicit constant conversion drivers/ide/pci/serverworks.c:211: warning: overflow in implicit constant conversion drivers/ide/pci/serverworks.c:212: warning: overflow in implicit constant conversion Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-24Match DMA blacklist entries between ide-dma.c and libata-core.cJunio C Hamano
There are a few entries in ata_device_blacklist[] in libata-core.c marked with HORKAGE_NODMA but are missing from drive_blacklist[] in ide-dma.c. This patch makes the lists in sync. Also remove a duplicated entry for "SanDisk SDP3B-64". Signed-off-by: Junio C Hamano <junkio@cox.net> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-24Add two missing chipsets to drivers/ide/ide-proc.cMika Kukkonen
Compiling with '-Wswitch-enum' I noticed following: CC drivers/ide/ide-proc.o drivers/ide/ide-proc.c: In function ‘proc_ide_read_imodel’: drivers/ide/ide-proc.c:54: warning: enumeration value ‘ide_etrax100’ not handled in switch drivers/ide/ide-proc.c:54: warning: enumeration value ‘ide_acorn’ not handled in switch How about the following patch? Signed-off-by: Mika Kukkonen <mikukkon@iki.fi> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-24ide/pci/serverworks.c: Fix corruption/timeouts with MegaIDEAlan Cox
It turns out from customer reports to Red Hat and some PCI dumps that the MegaIDE in RAID mode doesn't provide the drive tuning data that the serverworks driver expects but sometimes does provide something that fools the code. For the RAID class case skip the oem setup and don't trust the BIOS data. We then tune from scratch and this sorts it out. (This has been confirmed on an afflicted IBM blade) [libata serverworks.c never trusts the BIOS in the first place so is accidentally immune] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-24add the IDE device ID for ATI SB700Henry Su
Add the IDE device ID to atiixp_pci_tbl struct in atiixp.c for ATI SB700. From: Henry Su <henry.su@amd.com> Signed-off-by: Luugi Marsan <luugi.marsan@amd.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16Use menuconfig objects: IDEJan Engelhardt
Use menuconfigs instead of menus, so the whole menu can be disabled at once instead of going through all options. Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16sl82c105: Switch to ref counting APIAlan Cox
Not sure how this one got missed in the great purge some time ago but it did. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16ide: remove ide_use_dma()Bartlomiej Zolnierkiewicz
ide_use_dma() duplicates a lot of ide_max_dma_mode() functionality and as all users of ide_use_dma() were converted to use ide_tune_dma() now it is possible to add missing checks to ide_tune_dma() and remove ide_use_dma() completely, so do it. There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16ide: add missing validity checks for identify words 62 and 63Bartlomiej Zolnierkiewicz
Check validity of identify words 62 and 63 before using them in ide_get_mode_mask(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16ide: remove ide_dma_enable()Bartlomiej Zolnierkiewicz
* check ->speedproc return value in ide_tune_dma() * use ide_tune_dma() in cmd64x/cs5530/sc1200/siimage/sl82c105/scc_pata drivers * remove no longer needed ide_dma_enable() Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16sl82c105: add speedproc() method and MWDMA0/1 supportSergei Shtylyov
Add the speedproc() method for setting transfer modes, modify config_for_dma() to call it and use ide_max_dma_mode() to select the best DMA mode. Add support for the multiword DMA modes 0 and 1, using the upper half of the 'drive_data' field to store the DMA timings to program into the drive control register when DMA is turned on for real. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16cs5530/sc1200: add ->speedproc supportBartlomiej Zolnierkiewicz
* add {cs5530,sc1200}_tunepio() for programming PIO timings * add {cs5530,sc1200}_tune_chipset() (->speedproc method) for setting transfer mode and convert {cs5530,sc1200}_config_dma() to use it * bump driver version Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16cs5530/sc1200: DMA support cleanupBartlomiej Zolnierkiewicz
sc1200.c: * remove open-coded variant of ide_dma_host_off() (== ->dma_host_off), it is not needed because ->dma_off_quietly calls ->dma_host_off * use ->dma_host_on (== ide_dma_host_on() for this driver) instead of open-coded variant, call it from the users of sc1200_config_dma2() [ there is no need to call ->dma_host_on in sc1200_config_dma() because core code takes care of calling ->ide_dma_on on successful execution of ->ide_dma_check ] * add comment about ->tuneproc interface abuse cs5530.c/sc1200.c: * core code takes care of calling ->dma_off_quietly before calling ->ide_dma_check so there is no need to call it in ->ide_dma_check methods * bump driver version Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16ide: use ide_tune_dma() part #2Bartlomiej Zolnierkiewicz
Use ide_tune_dma() in ide-cris/it821x/pdc202xx_old/serverworks drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16cs5530/sc1200: add ->udma_filter methodsBartlomiej Zolnierkiewicz
CS5530/SC1200 specifies that two drives on the same cable cannot mix UDMA/MDMA. Add {cs5530,sc1200}_udma_filter() to handle this. This also makes it possible to remove open-coded best DMA mode selection and use standard ide_use_dma()/ide_max_dma_mode() helpers. While at it bump version numbers. There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16ide: always disable DMA before tuning itBartlomiej Zolnierkiewicz
ide_start_power_step() and set_using_dma() were missing ->dma_off_quietly call (comment in probe_hwif() states that DMA should be always cleared before tuning is attempted). Fix it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16pdc202xx_new: use ide_tune_dma()Bartlomiej Zolnierkiewicz
* remove code enabling IORDY and prefetch from config_chipset_for_dma(), as the comment states it has no real effect because these settings are overriden when the PIO mode is set (and for this driver ->autotune == 1 so PIO mode is always programmed) * use ide_tune_dma() in pdcnew_config_drive_xfer_rate() and remove no longer needed config_chipset_for_dma() There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16alim15x3: use ide_tune_dma()Bartlomiej Zolnierkiewicz
Use ide_tune_dma() in ali15x3_config_drive_for_dma() and remove all the open coded DMA tuning code and also config_chipset_for_dma(). Set ->atapi_dma flag correctly in init_hwif_common_ali15x3() so ide_tune_dma() can take care of checking if ATAPI DMA is allowed and remove open coded ATAPI DMA check from ali15x3_config_drive_for_dma(). There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16sis5513: PIO mode setup fixesBartlomiej Zolnierkiewicz
* limit max PIO mode to PIO4, this driver doesn't support PIO5 and attempt to program PIO5 by config_art_rwp_pio() could result in incorrect PIO timings being programmed and possibly the data corruption (for < ATA100 family chipsets PIO0 timings were used, for ATA100 and ATA100a - the random content of test1 variable was used, for ATA133 - MWDMA0 timings were used) * BUG() in sis5513_tune_chipset() if somebody tries to force unsupported PIO5, also cleanup this function a bit while at it * add comment about PIO0 timings for < ATA100 family chipsets * remove open-coded best PIO mode selection from config_art_rwp_pio(), it contained numerous bugs: - it didn't check for validity of id->eide_pio_modes and id->eide_pio_iordy before using them - it tried to found out maximum PIO mode basing on minimum IORDY cycle time (moreover wrong cycle times were used for PIO1/5) - it was overriding PIO blacklist and conservative PIO "downgrade" done by ide_get_best_pio_mode() * use sis5513_tune_drive() instead of config_art_rwp_pio() in sis5513_config_xfer_rate() so the correct PIO mode is also set on drive even if the device is not IORDY/DMA capable * config_art_rwp_pio() was always setting the best possible mode and not the wanted one - fix it and move ide_get_best_pio_mode() call to config_chipset_for_pio() * don't use ide_find_best_mode() in config_chipset_for_pio(), it was being overriden by config_art_rwp_pio() for the host timings anyway + we need to set the same PIO mode on the device and the host * pass correct "pio" argument (255 instead of 5) to sis5513_tune_drive() call in sis5513_config_xfer_rate() so the best PIO mode is set on the drive and not PIO4 * rename sis5513_tune_drive() to sis5513_tuneproc() and config_chipset_for_pio() to sis5513_tune_driver() * bump driver version Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16serverworks: PIO mode setup fixesBartlomiej Zolnierkiewicz
* limit max PIO mode to PIO4, this driver doesn't support PIO5 and attempt to program PIO5 by svwks_tune_chipset() could result in incorrect PIO timings being programmed and possibly the data corruption (it seems that the minimum possible values were used but I lack the datasheets to be sure) * select best PIO mode in svwks_tune_drive() and not in svwks_tune_chipset() when doing PIO autotuning (pio == 255) * don't try to tune PIO in config_chipset_for_dma() as ide_dma_enable() could return 1 if DMA was previously enabled (svwks_config_drive_xfer_rate() takes care of PIO tuning if no suitable DMA mode is found) * remove config_chipset_for_pio() and use svwks_tune_drive() instead, config_chipset_for_pio() contained numerous bugs when selecting PIO mode (luckily it was only used for devices limited to PIO by capabilities/BIOS): - it didn't check for validity of id->eide_pio_modes and id->eide_pio_iordy before using them - it tried to found out maximum PIO mode basing on minimum IORDY cycle time (moreover wrong cycle times were used for PIO0/1/5) - it was overriding PIO blacklist and conservative PIO "downgrade" done by ide_get_best_pio_mode() - if the max drive PIO was PIO5 then XFER_PIO_0/XFER_PIO_SLOW was selected (XFER_PIO_SLOW is not supported by svwks_tune_chipset() so the result was the same as if using XFER_PIO_5 => wrong PIO timings were set) - it was overriding drive->current_speed * bump driver version Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16pdc202xx_old: rewrite mode programming code (v2)Bartlomiej Zolnierkiewicz
This patch is based on the documentation (I would like to thank Promise for it) and also partially on the older vendor driver. Rewrite mode programming code: * disable 66MHz clock in pdc202xx_tune_chipset() so it is correctly disabled even if both devices on the channel are not DMA capable and after reset * enable/disable IORDY and PREFETCH bits in pdc202xx_tune_chipset() as they need to be setup correctly also for PIO only devices, plus IORDY wasn't disabled for non-IORDY devices and PREFETCH wasn't disabled for ATAPI devices * remove dead code for setting SYNC_ERDDY_EN bits from config_chipset_for_dma() (driver sets ->autotune to 1 so PIO modes are always programmed => lower nibble of register A never equals 4 => "chipset_is_set" is always true) * enable PIO mode programming for all ATAPI devices (it was limited to ->media == ide_cdrom devices) * remove extra reads of registers A/B/C, don't read register D et all * do clearing / programming of registers A/B/C in one go (gets rid of extra PCI config space read/write cycle) * set initial values of drive_conf/AP/BP/CP variables to zero (paranoia for the case when PCI reads fail) * remove XFER_UDMA6 to XFER_UDMA5 remapping case - it can't happen (ide_rate_filter() takes care of it) * fix XFER_MW_DMA0 timings (they were overclocked, use the official ones) * fix bitmasks for clearing bits of register B: - when programming DMA mode bit 0x10 of register B was cleared which resulted in overclocked PIO timing setting (iff PIO0 was used) - when programming PIO mode bits 0x18 weren't cleared so suboptimal timings were used for PIO1-4 if PIO0 was previously set (bit 0x10) and for PIO0/3/4 if PIO1/2 was previously set (bit 0x08) * add FIXME comment about missing locking for 66MHz clock register Also while at it: * remove unused defines * do a few cosmetic / CodingStyle fixes * bump driver version v2: * in pdc202xx_tune_chipset() the old content of drive configuration registers is used only by the debugging code so cover "drive_conf" PCI registers read by #if PDC202XX_DEBUG_DRIVE_INFO (Noticed by Sergei Shtylyov) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-11[ARM] ecard: add ecardm_iomap() / ecardm_iounmap()Russell King
Add devres ecardm_iomap() and ecardm_iounmap() for Acorn expansion cards. Convert all expansion card drivers to use them. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-11[ARM] ecard: add helper function for setting ecard irq opsRussell King
Rather than having every driver fiddle about setting its private IRQ operations and data, provide a helper function to contain this functionality in one place. Arrange to remove the driver-private IRQ operations and data when the device is removed from the driver, and remove the driver private code to do this. This fixes potential problems caused by drivers forgetting to remove these hooks. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-10[S390] Kconfig: menus with depends on HAS_IOMEM.Martin Schwidefsky
Add "depends on HAS_IOMEM" to a number of menus to make them disappear for s390 which does not have I/O memory. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-09Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: ide: fix PIO setup on resume for ATAPI devices ide: legacy PCI bus order probing fixes ide: add ide_proc_register_port() ide: add "initializing" argument to ide_register_hw() ide: cable detection fixes (take 2) ide: move IDE settings handling to ide-proc.c ide: split off ioctl handling from IDE settings (v2) ide: make /proc/ide/ optional ide: add ide_tune_dma() helper ide: rework the code for selecting the best DMA transfer mode (v3) ide: fix UDMA/MWDMA/SWDMA masks (v3)
2007-05-10ide: fix PIO setup on resume for ATAPI devicesBartlomiej Zolnierkiewicz
PIO should be restored also for ATAPI devices during resume, fix it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-10ide: legacy PCI bus order probing fixesBartlomiej Zolnierkiewicz
IDE PCI host drivers should register themselves with IDE core only when IDE driver is built-in, otherwise (IDE driver is modular and thus IDE PCI host drivers are also modular) the code has no effect and just complicates the probing. Fix it by adding new config option CONFIG_IDEPCI_PCIBUS (defined only when needed and invisible to the user) and covering by #ifdef/#endif the code in question. It turned out that "ide=reverse" was silently accepted but did nothing in case when IDE driver was modular, this is fixed now. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-10ide: add ide_proc_register_port()Bartlomiej Zolnierkiewicz
* create_proc_ide_interfaces() tries to add /proc entries for every probed and initialized IDE port, replace it by ide_proc_register_port() which does it only for the given port (also rename destroy_proc_ide_interface() to ide_proc_unregister_port() for consistency) * convert {create,destroy}_proc_ide_interface[s]() users to use new functions * pmac driver depended on proc_ide_create() to add /proc port entries, fix it * au1xxx-ide, swarm and cs5520 drivers depended indirectly on ide-generic driver (CONFIG_IDE_GENERIC=y) to add port /proc entries, fix them * there is now no need to add /proc entries for IDE ports in proc_ide_create() so don't do it * proc_ide_create() needs now to be called before drivers are probed - fix it, while at it make proc_ide_create() create /proc "ide" directory Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-10ide: add "initializing" argument to ide_register_hw()Bartlomiej Zolnierkiewicz
Add "initializing" argument to ide_register_hw() and use it instead of ide.c wide variable of the same name. Update all users of ide_register_hw() accordingly. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-10ide: cable detection fixes (take 2)Bartlomiej Zolnierkiewicz
Tejun's recent eighty_ninty_three() fix has inspired me to do more thorough review of the cable detection code... * print user-friendly warning about limiting the maximum transfer speed to UDMA33 (and the reason behind it) when 80-wire cable is not detected, also while at it cleanup eighty_ninty_three() a bit * use eighty_ninty_three() in ide_ata66_check(), this actually fixes 3 bugs: - bit 14 (word 93 validity check) == 1 && bit 13 (80-wire cable test) == 1 were used as 80-wire cable present test for CONFIG_IDEDMA_IVB=n case (please see FIXME comment in eighty_ninty_three() for more details) - CONFIG_IDEDMA_IVB=y/n cases were interchanged - check for SATA devices was missing * remove private cable warnings from pdc_202xx{old,new} drivers now that core code provides this functionality (plus, in pdc202xx_new case the test could give false warnings for ATAPI devices because pdc202xx_new driver doesn't even support ATAPI DMA) Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-10ide: move IDE settings handling to ide-proc.cBartlomiej Zolnierkiewicz
* move __ide_add_setting() ide_add_setting() __ide_remove_setting() auto_remove_settings() ide_find_setting_by_name() ide_read_setting() ide_write_setting() set_xfer_rate() ide_add_generic_settings() ide_register_subdriver() ide_unregister_subdriver() from ide.c to ide-proc.c * set_{io_32bit,pio_mode,using_dma}() cannot be marked static now, fix it * rename ide_[un]register_subdriver() to ide_proc_[un]register_driver(), update device drivers to use new names * add CONFIG_IDE_PROC_FS=n versions of ide_proc_[un]register_driver() and ide_add_generic_settings() * make ide_find_setting_by_name(), ide_{read,write}_setting() and ide_{add,remove}_proc_entries() static * cover IDE settings code in device drivers with CONFIG_IDE_PROC_FS #ifdef, also while at it cover with CONFIG_IDE_PROC_FS #ifdef ide_driver_t.proc * remove bogus comment from ide.h * cover with CONFIG_IDE_PROC_FS #ifdef .proc and .settings in ide_drive_t Besides saner code this patch results in the IDE core smaller by ~2 kB (on x86-32) and IDE disk driver by ~1 kB (ditto) when CONFIG_IDE_PROC_FS=n. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-10ide: split off ioctl handling from IDE settings (v2)Bartlomiej Zolnierkiewicz
* do write permission and min/max checks in ide_procset_t functions * ide-disk.c: drive->id is always available so cleanup "multcount" setting accordingly * ide-disk.c: "address" setting was incorrectly defined as type TYPE_INTA, fix it by using type TYPE_BYTE and updating ide_drive_t->adressing field, the bug didn't trigger because this IDE setting uses custom ->set function * ide.c: add set_ksettings() for handling HDIO_SET_KEEPSETTINGS ioctl * ide.c: add set_unmaskirq() for handling HDIO_SET_UNMASKINTR ioctl * handle ioctls directly in generic_ide_ioclt() and idedisk_ioctl() instead of using IDE settings to deal with them * remove no longer needed ide_find_setting_by_ioctl() and {read,write}_ioctl fields from ide_settings_t, also remove now unused TYPE_INTA handling v2: * add missing EXPORT_SYMBOL_GPL(ide_setting_sem) needed now for ide-disk Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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