Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Port of Jeff's libata commit 54174db3
("[libata] ata_piix: add HP compaq laptop to short cable list").

Cc: Jeff Garzik <jeff@garzik.org>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Port of Alan's patch for pata_ali.c.

Cc: Alan Cox <alan@redhat.com>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Add pci_enable_device() to aec62xx probe function
before doing any I/O.

Original probe function tries to read from device's
PCI region 4 before calling ide_setup_pci_device().
Since the device is not enabled at this point,
on machines that have no firmware PCI initialization
(e.g. ASUS WL-700gE router), corresponding PCI BAR 
is 0 and the following inb() causes a kernel oops.
Signed-off-by: NAleksandar Radovanovic <biblbroks@sezampro.yu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

The intent behind siimage_reset() was probably to hard reset the interface and
the SATA PHY but as the code writes to two reserved bits instead, it obviously
has been ineffective from the start. So, just remove it.
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

With newer kernels HDD in my old laptop is limited to UDMA 33.
With this patch I get UDMA 100 again.
Signed-off-by: NGabriel Craciunescu <nix.or.die@googlemail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Fix ide-cris, cs5530, sc1200 and sis5513 host drivers to just return instead
of OOPS-ing for unsupported modes in ->set_dma_mode methods.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Make sure to not clear the other IDE channel's interrupt when clearing an IDE
interrupt via the MRDMODE register.

Thanks to Bart for finding a coding mistake.

Bart:

This fixes regression from commit 66602c83
("cmd64x: use interrupt status from MRDMODE register (take 2)").

Extra thanks to Martin for reporting and bisecting the issue.

From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Tested-by: NMartin Rogge <marogge@onlinehome.de>
Tested-by: NMilan Kocian <milon@wq.cz>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

In piix.c (and in ata_piix.c) are already included some patches to skip the
cable check on some laptops and to enable UDMA > 33 modes, but I've noticed
than theese doesn't work on my Acer Aspire 5602WLMi (maybe exist more
versions of this laptop).  With this simple patch I can set transfer mode
to UDMA100.

From: "sebdeg@ngi.it" <sebdeg@ngi.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Acked-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* We shouldn't bother with dev->current_state, the PCI API functions we
  call manage this for us (and do a far better job at it too).

* Remove pci_set_power_state(dev, PCI_D0) call in resume, as
  pci_enable_device() does the same thing.

* Check pci_enable_device() return value.  If it failed, fail
  the entire resume and avoid programming timings into the [potentially
  dead/asleep] chip.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

It turns out that const and __{dev}initdata cannot be mixed currently
and that generic IDE PCI host driver is also affected by the same issue:

On Thursday 25 October 2007, Ralf Baechle wrote:
>   CC      drivers/ide/pci/generic.o
> drivers/ide/pci/generic.c:52: error: __setup_str_ide_generic_all_on causes a
> +section type conflict

[ Also reported by Martijn Uffing <mp3project@sarijopen.student.utwente.nl>. ]

This patch workarounds the problem in a bit hackish way but without
removing const from generic_chipsets[] (it adds const to __setup() so
__setup_str_ide_generic_all becomes const).

Now all __{dev}initdata data in generic IDE PCI host driver are read-only
so it builds again (driver's .init.data section gets marked as READONLY).

Cc: Martijn Uffing <mp3project@sarijopen.student.utwente.nl>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

On Saturday 20 October 2007, Avuton Olrich wrote:

> My randconfig script the attached config caught an error on:
> drivers/ide/pci/cy82c693.c:439: error: primary causes a section type conflict
>
> My git tree: c00046c2
>
> Bisected to:
> 85620436 is first bad commit
> commit 85620436
> Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> Date:   Sat Oct 20 00:32:34 2007 +0200
>
>     ide: constify struct ide_port_info
>
>     Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

It turns out that const and __{dev}initdata cannot be mixed currently
and that hpt366 host driver is also affected by the same issue:

> drivers/ide/pci/hpt366.c:1428: error: hpt366_chipsets causes a section type
> conflict

This patch workarounds the problem by making static struct hpt_info instances
const.  Now all __devinitdata data in hpt366 host driver are read-only so it
builds again (driver's .init.data section gets marked as READONLY).

While at it:

* Bump driver version.

Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: "Avuton Olrich" <avuton@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

On Saturday 20 October 2007, Avuton Olrich wrote:

> My randconfig script the attached config caught an error on:
> drivers/ide/pci/cy82c693.c:439: error: primary causes a section type conflict
>
> My git tree: c00046c2
>
> Bisected to:
> 85620436 is first bad commit
> commit 85620436
> Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> Date:   Sat Oct 20 00:32:34 2007 +0200
>
>     ide: constify struct ide_port_info
>
>     Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

It turns out that const and __{dev}initdata cannot be mixed currently.

This patch workarounds the problem by removing __devinitdata tag from 'primary'
variable (which makes 'primary' to be moved from .init.data to .bss section).
Now all __devinitdata data in cy82c693 host driver are read-only so it builds
again (driver's .init.data section gets marked as READONLY).

While at it:

* Move 'primary' variable to its only user, init_iops_cy82c693().

* Bump driver version.

Cc: "Avuton Olrich" <avuton@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Take ide_lock for prefetch disable/enable in do_special(),
then cleanup cmd640 and ht6560b host drivers.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Stop abusing ide_lock lock (switch to a private locking).

Fixes same issue as fixed by Alan Cox in atiixp host driver with
commit 6c5f8cc3.

cmd640 is a bit special cause we still need to leave ide_lock for
->set_pio_mode with 'pio' argument == 8/9 (prefetch disable/enable).
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Stop abusing ide_lock lock (switch to a private locking).

  Fixes same issue as fixed by Alan Cox in atiixp host driver with
  commit 6c5f8cc3.

* Bump driver version.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Stop abusing ide_lock lock (switch to a private locking).

  Fixes same issue as fixed by Alan Cox in atiixp host driver with
  commit 6c5f8cc3.

* Bump driver version.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Rename struct ide_pci_device_s to struct ide_port_info.

* Remove ide_pci_device_t typedef.

While at it:

* Fix __ide_pci_register_driver() comment.

* Fix aec62xx_init_one() comment.

* Remove unused 'cds' field from ide_hwgroup_t.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Keep local ide_pci_device_t copy in via_init_one().

* Adjust ide_pci_device_t copy according to id->driver_data in via_init_one()
  and remove no longer needed second via82cxxx_chipsets[] entry.

* via82cxxx_chipsets[] -> via82cxxx_chipset.

* Remove IDE_HFLAGS_VIA define.

* Bump driver version.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Add ide_device_add() helper and convert host drivers to use it
  instead of open-coded variants.

* Make ide_pci_setup_ports() and do_ide_setup_pci_device()
  take 'u8 *idx' argument instead of 'ata_index_t *index'.

* Remove no longer needed ata_index_t.

* Unexport probe_hwif_init() and make it static.

* Unexport ide_proc_register_port().

There should be no functionality changes caused by this patch
(sgiioc4.c: ide_proc_register_port() requires hwif->present
 to be set and it won't be set if probe_hwif_init() fails).
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Add ->fixup method to ide_hwif_t.

* Set hwif->fixup in ide_pci_setup_ports() to d->fixup.

* Use hwif->fixup in probe_hwif().

* Use probe_hwif_init() instead of probe_hwif_init_with_fixup() in
  ide_setup_pci_device().

* Add 'fixup' argument to ide_register_hw() and use it to set hwif->fixup,
  update all ide_register_hw() users accordingly.

* Convert ide-cs/delkin_cb host drivers to use ide_register_hw().

* Restore hwif->fixup in ide_hwif_restore().

* Remove ide_register_hw_with_fixup(), probe_hwif_init_with_fixup()
  and 'fixup' argument from probe_hwif().
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Split off sil_sata_udma_filter() from sil_udma_filter()
  and rename sil_udma_filter() to sil_pata_udma_filter().

* Rename siimage_busproc() to sil_sata_busproc().

* Rename siimage_reset_poll() to sil_sata_reset_poll()
  and in init_hwif_siimage() set ->reset_poll method only
  for SATA controllers.

* Rename siimage_pre_reset() to sil_sata_pre_reset(),
  in init_hwif_siimage() set ->pre_reset method only for
  SATA controllers and remove redundant is_sata() call.

* Add CONFIG_BLK_DEV_IDE_SATA #ifdef/#endif to pdev_is_sata()
  so compiler will know to throw out unused SATA code for
  CONFIG_BLK_DEV_IDE_SATA=n case (830 bytes saved on x86-32).

* Bump driver version.

Some minor cleanups while at it:

* Convert sil_{pata,sata}_udma_filter() to use ATA_UDMA* defines.

* In siimage_mmio_ide_dma_test_irq() move 'base' variable
  under 'if (SATA_ERROR_REG)' block.

* Simplify sil_sata_reset_poll() a bit.

* Cache is_sata() result in init_hwif_siimage() 
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Remove aec62xx_dma_lost_irq() (generic ide_dma_lost_irq() will be used now).

* Bump driver version.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Make a local copy of ali15x3_chipset in alim15x3_init_one() and set
  ->host_flags / ->udma_mask according to the controller capabilities.

* Cleanup init_hwif_common_ali15x3().

* Bump driver version.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Setup CD_ROM DMA and PIO FIFO settings in init_chipset_ali15x3() instead
  of ata66_ali15x3().  The latter is called from init_hwif_common_ali15x3()
  only if DMA base exists (which insists m5529_revision > 0x20).

  This changes makes CD_ROM DMA / PIO FIFO bits being set only once
  and also when "idex=ata66" kernel parameter is used.

* While at it move also chip_is_1543c_e setup from ata66_ali15x3() to
  init_chipset_ali15x3() and check if isa_dev exists before accessing it.

* Bump driver version.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Add IDE_HFLAG_{IO_32BIT,UNMASK_IRQS} host flag to tell ide_pci_setup_ports()
to set drive->{io_32bit,unmask} for both drives on the interface.  Convert
amd74xx, sl82c105 and via82cxxx host drivers to use these new host flags.

While at it:

* Add IDE_HFLAGS_AMD define (amd74xx host driver).

* Add IDE_HFLAGS_VIA define (via82cxxx host driver).
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Add IDE_HFLAG_RQSIZE_256 host flag to tell ide_pci_setup_ports() to set
hwif->rqsize to 256 sectors.  Convert pdc202xx_old host driver to use it.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag to tell ide_pci_setup_ports()
to always set hwif->irq to legacy IRQ 14/15 and convert generic IDE PCI
and via82cxxx host drivers to use it.

While at it:

* Add IDE_HFLAGS_UMC define (generic IDE PCI host driver).

* Remove no longer needed init_hwif_generic() (generic IDE PCI host driver).

* Set d->udma_mask instead of hwif->ultra_mask (via82cxxx host driver).
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Add ->chipset field to ide_pci_device_t and use it in ide_hwif_configure()
to set hwif->chipset.  Convert cmd64x, cy82c693, rz1000 and trm290 host
drivers to use this new ability.

While at it define hwif_chipset_t as u8 to save some space in hw_regs_t,
ide_hwif_t and ide_pci_device_t instances.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Setting hwif->serialized makes sense only if the mate interface exists.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

hwif->chipset should be set to ide_cmd646 also when DMA base is invalid.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

This patch adds a missing "else" that was missing in
commit c77a89cd.

Spotted by the Coverity checker.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>,
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".
Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com>
Signed-off-by: NAdrian Bunk <bunk@kernel.org>

Majority of host drivers using IDE PCI layer set drive->autotune, the only
exceptions are:

generic.c
ns87415.c
rz1000.c
trm290.c
* no ->set_pio_mode method

it821x.c:
* if memory allocation fails drive->autotune won't be set
  (but there also won't be ->set_pio_mode method in such case)

piix.c:
* MPIIX controller (no ->init_hwif method so also no ->set_pio_mode method)

However if there is no ->set_pio_mode method there are no changes in behavior
w.r.t. PIO tuning so always set drive->autotune in ide_pci_setup_ports().
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>