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2007-10-19Merge branch 'upstream-linus' of ↵Linus Torvalds9-74/+1560
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] kill ata_sg_is_last() Update libata driver for bf548 atapi controller against the 2.6.24 tree. libata-sff: Correct use of check_status() drivers/ata: add support to Freescale 3.0Gbps SATA Controller pata_acpi: fix build breakage if !CONFIG_PM
2007-10-19sparse pointer use of zero as nullStephen Hemminger1-1/+1
Get rid of sparse related warnings from places that use integer as NULL pointer. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Andi Kleen <ak@suse.de> Cc: Jeff Garzik <jeff@garzik.org> Cc: Matt Mackall <mpm@selenic.com> Cc: Ian Kent <raven@themaw.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19[libata] kill ata_sg_is_last()Jeff Garzik3-26/+20
Short term, this works around a bug introduced by early sg-chaining work. Long term, removing this function eliminates a branch from a hot path loop in each scatter/gather table build. Also, as this code demonstrates, we don't need to _track_ the end of the s/g list, as long as we mark it in some way. And doing so programatically is nice. So its a useful cleanup, regardless of its short term effects. Based conceptually on a quick patch by Jens Axboe. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-18Update libata driver for bf548 atapi controller against the 2.6.24 tree.Sonic Zhang2-47/+37
Changes: 1. Remove irq_ack() and port_disable() methods 2. Acocomodate for the libata-link patches 3. Change Kconfig ATAPI mode option into a module param. 4. Add supported WMDMA mode. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-18libata-sff: Correct use of check_status()Alan Cox1-1/+1
ata_check_status() does an SFF compliant check ata_chk_status() does a generic call to ap->ops->check_status (usually ata_check_status) libata-sff uses the wrong one. Hardly suprising given the naming here, which ought to get fixed to ata_sff_check_status() perhaps ? Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-18drivers/ata: add support to Freescale 3.0Gbps SATA ControllerLi Yang3-0/+1500
This patch adds support for Freescale 3.0Gbps SATA Controller supporting Native Command Queueing(NCQ), device hotplug, and ATAPI. This controller can be found on MPC8315 and MPC8378. Signed-off-by: Ashish Kalra <ashish.kalra@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-18pata_acpi: fix build breakage if !CONFIG_PMTejun Heo1-0/+2
There are configurations where CONFIG_ACPI but !CONFIG_PM. In this case, pata_acpi can be selected but won't build. Fix it. Reported by Avuton Olrich. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Avuton Olrich <avuton@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-16Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2-16/+21
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: (63 commits) Fix memory leak in dm-crypt SPARC64: sg chaining support SPARC: sg chaining support PPC: sg chaining support PS3: sg chaining support IA64: sg chaining support x86-64: enable sg chaining x86-64: update pci-gart iommu to sg helpers x86-64: update nommu to sg helpers x86-64: update calgary iommu to sg helpers swiotlb: sg chaining support i386: enable sg chaining i386 dma_map_sg: convert to using sg helpers mmc: need to zero sglist on init Panic in blk_rq_map_sg() from CCISS driver remove sglist_len remove blk_queue_max_phys_segments in libata revert sg segment size ifdefs Fixup u14-34f ENABLE_SG_CHAINING qla1280: enable use_sg_chaining option ...
2007-10-16remove blk_queue_max_phys_segments in libataFUJITA Tomonori1-2/+0
LIBATA_MAX_PRD is the maximum number of DMA scatter/gather elements permitted by the HBA's DMA engine. It's properly set to q->max_hw_segments via the sg_tablesize parameter. libata shouldn't call blk_queue_max_phys_segments. Now LIBATA_MAX_PRD is equal to SCSI_MAX_PHYS_SEGMENTS by default (both is 128), so everything is fine. But if they are changed, some code (like the scsi mid layer, sg chaining, etc) might not work properly. (Addition from Jens) The basic issue is that the physical segment setting is purely a driver issue. And since SCSI is managing the sglist, libata has no business changing the setting. All libata should care about is the hw segment setting. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16libata sg chaining support fixFUJITA Tomonori1-1/+6
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16libata: convert to using sg helpersJens Axboe1-14/+16
This converts libata to using the sg helpers for looking up sg elements, instead of doing it manually. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16docbook: fix libata contentRandy Dunlap1-1/+1
Fix libata docbook warnings. Warning(linux-2.6.23-git8//drivers/ata/libata-scsi.c:3251): No description found for parameter 'dev' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16[libata] pata_cs5536: new API build fixJeff Garzik1-2/+0
This driver was using hooks that were very recently removed. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15[libata] pata_pcmcia: Add additional id string (corsair, 1GB)Kristoffer Ericson1-0/+2
Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15libata: prevent devices with blank model names from being DMA blacklistedAndrew Paprocki1-1/+7
The strn_pattern_cmp routine does not handle a blank name parameter properly. The only patterns which should match a blank name are "*" and an explicit "". If the function is passed a blank name in current code, it will always match against the patt parameter. The bug manifests itself as the device with the empty model name always matching the first device in the DMA blacklist, forcing it to revert to PIO mode. Signed-off-by: Andrew Paprocki <andrew@ishiboo.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15ata_piix: SATA 2port controller port map fixJason Gaston1-5/+30
This patch adds a port map for ICH9 and ICH8 SATA controllers that have only 2 ports available in that mode. Signed-off-by: Jason Gaston <jason.d.gaston@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15pata_cs5536: ATA driver for Geode companion chipMartin K. Petersen3-0/+356
This is a driver for the ATA controller on the Geode CS5536 companion chip. The PCI device ID for this device was previously claimed by pata_amd.c but the PIO timings were not correct. This driver also works around a bug in some BIOSes that handle unaligned access to the PCI config registers poorly. Finally, the driver allows fallback to using MSR registers for configuration on BIOSes that are truly broken. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15libata: add ST9160821AS / 3.CCD to NCQ blacklistTejun Heo1-0/+1
ST9160821AS / 3.CCD does spurious completions too. Blacklist it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15libata: fix revalidation issuing after configuration commandsTejun Heo1-2/+3
After commands which can change device configuration, EH is scheduled to revalidate and reconfigure the device. Host link was incorrectly used unconditionally when scheduling EH action. This resulted in bogus revalidation request and mismatched configuration between device and driver. Fix it. This bug was reported by Igor Durdanovic. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Igor Durdanovic <idurdanovic@comcast.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15[libata] sata_nv: add SW NCQ support for MCP51/MCP55/MCP61Kuan Luo1-9/+842
Add the Software NCQ support to sata_nv.c for MCP51/MCP55/MCP61 SATA controller. NCQ function is disable by default, you can enable it with 'swncq=1'. NCQ will be turned off if the drive is Maxtor on MCP51 or MCP55 rev 0xa2 platform. [akpm@linux-foundation.org: build fix] Signed-off-by: Kuan Luo <kluo@nvidia.com> Signed-off-by: Peer Chen <pchen@nvidia.com> Cc: Zoltan Boszormenyi <zboszor@dunaweb.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-15[libata] pata_sil680: Add MMIO supportBenjamin Herrenschmidt1-4/+57
This patch adds MMIO support to the pata_sil680 for taskfile IOs, based on what the old siimage does. I haven't bothered changing the chip setup stuff from PCI config cycles to MMIO though (siimage does it), I don't think it matters, I've only adapted it to use MMIO for taskfile accesses. I've tested it on a Cell blade and it seems to work fine. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-14more trivial signedness fixes in driversAl Viro2-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14mpc52xx-ata: fix compile warning (unused variable)Grant Likely1-1/+0
Trivial unused variable fix Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-12[libata] struct pci_dev related cleanupsJeff Garzik3-20/+3
* remove pointless pci_dev_to_dev() wrapper. Just directly reference the embedded struct device like everyone else does. * pata_cs5520: delete cs5520_remove_one(), it was a duplicate of ata_pci_remove_one() * linux/libata.h: don't bother including linux/pci.h, we don't need it. Simply declare 'struct pci_dev' and assume interested parties will include the header, as they should be doing anyway. * linux/libata.h: consolidate all CONFIG_PCI declarations into a single location in the header. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12libata: use ata_exec_internal() for PMP register accessTejun Heo5-189/+118
PMP registers used to be accessed with dedicated accessors ->pmp_read and ->pmp_write. During reset, those callbacks are called with the port frozen so they should be able to run without depending on interrupt delivery. To achieve this, they were implemented polling. However, as resetting the host port makes the PMP to isolate fan-out ports until SError.X is cleared, resetting fan-out ports while port is frozen doesn't buy much additional safety. This patch updates libata PMP support such that PMP registers are accessed using regular ata_exec_internal() mechanism and kills ->pmp_read/write() callbacks. The following changes are made. * PMP access helpers - sata_pmp_read_init_tf(), sata_pmp_read_val(), sata_pmp_write_init_tf() are folded into sata_pmp_read/write() which are now standalone PMP register access functions. * sata_pmp_read/write() returns err_mask instead of rc. This is consistent with other functions which issue internal commands and allows more detailed error reporting. * ahci interrupt handler is modified to ignore BAD_PMP and spurious/illegal completion IRQs while reset is in progress. These conditions are expected during reset. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: implement ATA_PFLAG_RESETTINGTejun Heo1-0/+11
Implement ATA_PFLAG_RESETTING. This flag is set while reset is in progress. It's set before prereset is called and cleared after reset fails or postreset is finished. This flag itself doesn't have any function. It will be used by LLDs to tell whether reset is in progress if it needs to behave differently during reset. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: add @timeout to ata_exec_internal[_sg]()Tejun Heo4-17/+26
Add @timeout argument to ata_exec_internal[_sg](). If 0, default timeout ata_probe_timeout is used. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12ahci: fix notification handlingTejun Heo1-9/+21
Asynchronous notification on ICH9 didn't work because it didn't write AN FIS into the RX area - it only updates SNotification. Also, snooping SDB_FIS RX area is racy against further SDB FIS receptions. Let sata_async_notification() determine using SNTF if it's available and snoop RX area iff SNTF isn't available Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12ahci: clean up PORT_IRQ_BAD_PMP enablingTejun Heo1-5/+10
Now that we have pp->intr_mask, move PORT_IRQ_BAD_PMP enabling to ahci_pmp_attach/detach() where it belongs. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12ahci: kill leftover from enabling NCQ over PMPTejun Heo1-8/+0
ahci had problems with NCQ over PMP and NCQ used to be disabled while PMP was attached. After fixing the problem, the temporary NCQ disabling code wasn't removed completely. Kill the remaining piece. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: wrap schedule_timeout_uninterruptible() in loopTejun Heo1-1/+2
Tasks in uninterruptible sleep might be woken up by unrelated events and should check whether the condition it was waiting for has actually triggered. Wrap schedule_timeout_uninterruptible() in loop to achieve it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: skip suppress reporting if ATA_EHI_QUIETTejun Heo1-0/+3
ATA_EHI_NO_AUTOPSY and ATA_EHI_QUIET are used during initial probing to skip exception analysis and reporting. Usually, there's nothing to report but on some allowed but rare corner cases (e.g. phy status changed interrupt when IRQ is enabled on frozen port - this happens if IRQ pending status isn't cleared in the IRQ router or controller) exception messages get printed. Skip reporting if ATA_EHI_QUIET is set. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: clear ehi description after initial host reportTejun Heo1-2/+3
ehi description field is used to carry LLD specific controller description. Sometimes, it's used without clearing before and LLD description gets printed with exception information one more time. Clear after printing. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12pata_jmicron: match vendor and class code onlyTejun Heo1-11/+2
PATA part of all current JMB controllers behave the same way and JMicron confirms that all future ones will stay compatible. Drop device matching and match only vendor and class. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Ethan Hsiao <ethanhsiao@jmicron.com> Cc: Justin Tsai <justin@jmicron.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: add ST9160821AS / 3.ALD to NCQ blacklistTejun Heo1-0/+1
ST9160821AS / 3.ALD also does spurious NCQ completions. Disable NCQ. Signed-off-by: Tejun Heo <teheo@suse.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12pata_acpi: ACPI driver supportAlan Cox3-0/+406
On a cable there may be eighty wires or perhaps forty and we learn about its type In the world of ACPI So we call the GTM And we find the the timing rate And we look through it to see If eighty wire it must be Timing lives in ACPI routines ACPI routines, ACPI routines Timing lives in ACPI routines ACPI routes ACPI routines And the drivers last you see Picking up unknown pci ids and the code begins to work Timing lives in ACPI routines ACPI routines, ACPI routines Timing lives in ACPI routines ACPI routes ACPI routines [Full speed ahead, Mr Hacker, full speed ahead] Full speed over here sir! Checking Cable, checking cable Aye aye, 80 wire, Heaven heaven] If we use ACPI (ACPI) Every box (every box) has all we need (has all we need) Cable type (cable type) and mode timing (mode timing) In our ATA (in our ATA) subroutines (subroutines, ha ha) Timing lives in ACPI routines ACPI routines, ACPI routines Timing lives in ACPI routines ACPI routes ACPI routines Timing lives in ACPI routines ACPI routines, ACPI routines Timing lives in ACPI routines ACPI routes ACPI routines Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata-core: Expose gtm methods for driver useAlan Cox1-2/+6
Talk to the dark side our driver has to, yes. Much misleading is the data. Store it in a structure we do so that it may be parsed. Signed-off-by: Alan Cox <alan@redhat.com> -- Whats small, old and shouts phrases out of order across mountains ? Yodla.. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: add HDT722516DLA380 to NCQ blacklistTejun Heo1-0/+1
HDT722516DLA380 does spurious completion of NCQ commands. Blacklist it. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Frans Pop <elendil@planet.nl> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: blacklist NCQ on Seagate Barracuda ST380817ASPaolo Ornati1-0/+1
Seagate Barracuda ST380817AS has troubles with NCQ. For example, unpacking a tarball on an XFS filesystem gives this: ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen ata1.00: cmd 61/40:00:29:a3:98/00:00:00:00:00/40 tag 0 cdb 0x0 data 32768 out res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) More info here: http://lkml.org/lkml/2007/1/21/76 Blacklist it! Signed-off-by: Paolo Ornati <ornati@fastwebnet.it> Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12[libata] Turn on ACPI by defaultJeff Garzik1-2/+2
Let's see what explodes. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12libata_scsi: Fix ATAPI transfer lengthsAlan Cox1-4/+14
Some controller variants snoop the ATAPI length value for Packet transfers to do state machine and FIFO management. Thus we want to set it properly, even for cases where it is otherwise meaningless. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: correct handling of SRST reset sequencesAlan Cox1-0/+21
Correct handling of SRST reset sequences. After an SRST it is undefined whether the drive has gone back to PIO0. In order to talk safely we should talk slowly and carefully until we know. Thus when we do the reset if the controller has a pio setup method we call it to flip back to PIO 0 and a known state. After the reset completes the identify will then be done at the safe speed and the drive/controller will pick suitable faster modes and reconfigure the controller to these timings. As a side effect it means we force the controller to PIO 0 as we bring it up which fixes funnies on a few systems where the BIOS firmware leaves us in an interesting choice of modes, or embedded boxes with no firmware which come up in random states. For smart controllers there is nothing to do - they know about this internally. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: Integrate ACPI-based PATA/SATA hotplug - version 5Matthew Garrett1-1/+59
Modern laptops with hotswap bays still tend to utilise a PATA interface on a SATA bridge, generally with the host controller in some legacy emulation mode rather than AHCI. This means that the existing hotplug code in libata is unable to work. The ACPI specification states that these devices can send notifications when hotswapped, which avoids the need to obtain notification from the controller. This patch uses the existing libata-acpi code and simply registers a notification in order to trigger a rescan whenever the firmware signals an event. Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: Add a drivers/ide style DMA disableAlan Cox1-0/+17
This is useful when debugging, handling problem systems, or for distributions just to get the system installed so it can be sorted out later. This is a bit smarter than the old IDE one and lets you do libata.dma=0 Disable all PATA DMA like old IDE libata.dma=1 Disk DMA only libata.dma=2 ATAPI DMA only libata.dma=4 CF DMA only (or combinations thereof - 0,1,3 being the useful ones I suspect) (I've split CF as it seems to be a seperate case of pain and suffering different to the others and caused by assorted PIO wired adapters etc) Signed-off-by: Alan Cox <alan@redhat.com> [edited to work on SATA too, changing name from 'pata_dma' to 'dma'] Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12ahci: Add MCP79 support to AHCI driverPeer Chen1-0/+8
Signed-off-by: Peer Chen <peerchen@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: add human-readable error value decodingRobert Hancock1-0/+45
This adds human-readable decoding of the ATA status and error registers (similar to what drivers/ide does) as well as the SATA Serror register to libata error handling output. This prevents the need to pore through standards documents to figure out the meaning of the bits in these registers when looking at error reports. Some bits that drivers/ide decoded are not decoded here, since the bits are either command-dependent or obsolete, and properly parsing them would add too much complexity. Signed-off-by: Robert Hancock <hancockr@shaw.ca> [edited slightly to make output a bit more symmetric] Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12ahci: implement AHCI_HFLAG_NO_PMPTejun Heo1-2/+9
Of course some controllers lie about PMP support. Black list them. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12ahci: move host flags over to pi.private_dataTejun Heo1-28/+35
Private pi.flags area is full and we need more private flags. Move host private flags over to pi.private_data. During initialization, these flags are copied to hpriv->flags. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12ahci: implement PMP supportTejun Heo1-46/+174
Implement AHCI PMP support. ahci only supports command based switching. Also, for some reason, NCQ over PMP doesn't work now. Other than that, everything works. Tested on ICH9R, JMB360/363 + SIMG3726, 4726 and 5744. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Forrest Zhao <forrest.zhao@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12sata_sil24: implement PORT_RSTTejun Heo1-23/+70
As DEV_RST (hardreset) sometimes fail to recover the controller (especially after PMP DMA CS errata). In such cases, perform PORT_RST prior to DEV_RST. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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