* Pass 'ide_drive_t *drive' to check_prefetch(), set_prefetch_mode(),
  program_drive_counts() and cmd640_set_mode().

* Remove no longer needed cmd_drives[].

* Inline setup_device_ptrs() helper in cmd640x_init().
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

There should be no functional changes caused by this patch.

Cc: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Cc: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

There should be no functional changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Remove no longer needed matching against I/O base and 'base' argument.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Remove obsoleted "idex=noprobe" kernel parameter.

* Remove no longer needed hwif->noprobe quirk from ide_hwif_configure()
  and hwif->noprobe checking from cmd640.c.

v2:
* "ide?=noprobe" -> "ide?=ata66" in Documentation/kernel-parameters.txt.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Do explicit port setup instead of depending on init_ide_data().

This way hwif->io_ports[] and hwif->irq are always correctly set
regardless of CONFIG_PCI / CONFIG_BLK_DEV_IDEPCI.

While at it fix printk().
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

This loop is no longer needed.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Add CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS to drivers/ide/Kconfig and use
  it instead of defining IDE_ARCH_OBSOLETE_DEFAULTS in <arch/ide.h>.

v2:
* Define ide_default_irq() in ide-probe.c/ns87415.c if not already defined
  and drop defining ide_default_irq() for CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS=n.

  [ Thanks to Stephen Rothwell and David Miller for noticing the problem. ]

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag for Motorola-Sandpoint platform
  to sl82c105 host driver.

* Disable ide_generic host driver in arch/ppc/configs/sandpoint_defconfig
  and enable sl82c105 one.

* Remove ppc_ide_md hooks from arch/ppc/platforms/sandpoint.c - no need for
  them (sl82c105 host driver takes care of all this setup).

* Then remove no longer needed <linux/ide.h> include.

* Also update arch/ppc/platforms/sandpoint.h.

Unfortunately (unlike lopec's case) sl82c105 host driver was not enabled
in defconfing so there is a funcionality change.

[ Not a big deal since sl82c105 is superior over ide_generic. ]

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag for Motorola-LoPEC platform
  to sl82c105 host driver.

* Remove ppc_ide_md hooks from arch/ppc/platforms/lopec.c - no need for
  them (sl82c105 host driver takes care of all this setup).

* Then remove no longer needed <linux/ide.h> include.

Looking at arch/ppc/configs/lopec_defconfig:

...
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_SL82C105=y
...

there should be no functional changes unless somebody preferred to disable
sl82c105 host driver and use only ide_generic one (but why would anybody
want to do such thing :-).

PS It seems that lopec_defconfig hasn't been updated for ages but if somebody
is going to do it please look into disabling IDE_GENERIC and BLK_DEV_GENERIC
config options.  Thanks.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Add IDE_{ALTSTATUS,IREASON,BCOUNTL,BCOUNTH}_OFFSET defines.

* Remove IDE_*_REG macros - this results in more readable
  and slightly smaller code.

There should be no functional changes caused by this patch.

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

scc_pata has the different BAR configuration and using ide_setup_pci_device()
is inappropriate. 

(ide_setup_pci_device() expects a normal PCI IDE controller with
BAR0..BAR3 either non-existant or being primary/secondary port bases
in I/O space.)

This patch do all needed setup itself instead of calling ide_setup_pci_device().

[bart: minor checkpatch.pl fixes]
Signed-off-by: NKou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: NAkira Iguchi <akira2.iguchi@toshiba.co.jp>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

->hold is write-only now, remove it.

v2:
* v1 missed bast-ide, palm_bk3710, ide-cs and delkin_cb host drivers.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

hdparm explicitely marks HDIO_[UNREGISTER,SCAN]_HWIF ioctls as DANGEROUS
and given the number of bugs we can assume that there are no real users:

* DMA has no chance of working because DMA resources are released by
  ide_unregister() and they are never allocated again.

* Since ide_init_hwif_ports() is used for ->io_ports[] setup the ioctls
  don't work for almost all hosts with "non-standard" (== non ISA-like)
  layout of IDE taskfile registers (there is a lot of such host drivers).

* ide_port_init_devices() is not called when probing IDE devices so:
  - drive->autotune is never set and IDE host/devices are not programmed
    for the correct PIO/DMA transfer modes (=> possible data corruption)
  - host specific I/O 32-bit and IRQ unmasking settings are not applied
    (=> possible data corruption)
  - host specific ->port_init_devs method is not called (=> no luck with
    ht6560b, qd65xx and opti621 host drivers)

* ->rw_disk method is not preserved (=> no HPT3xxN chipsets support).

* ->serialized flag is not preserved (=> possible data corruption when
   using icside, aec62xx (ATP850UF chipset), cmd640, cs5530, hpt366
   (HPT3xxN chipsets), rz1000, sc1200, dtc2278 and ht6560b host drivers).

* ->ack_intr method is not preserved (=> needed by ide-cris, buddha,
  gayle and macide host drivers).

* ->sata_scr[] and sata_misc[] is cleared by ide_unregister() and it
  isn't initialized again (SiI3112 support needs them).

* To issue an ioctl() there need to be at least one IDE device present
  in the system.

* ->cable_detect method is not preserved + it is not called when probing
  IDE devices so cable detection is broken (however since DMA support is
  also broken it doesn't really matter ;-).

* Some objects which may have already been freed in ide_unregister()
  are restored by ide_hwif_restore() (i.e. ->hwgroup).

* ide_register_hw() may unregister unrelated IDE ports if free ide_hwifs[]
  slot cannot be found.

* When IDE host drivers are modular unregistered port may be re-used by
  different host driver that owned it first causing subtle bugs.

Since we now have a proper warm-plug support remove these ioctls,
then remove no longer needed:
- ide_register_hw() and ide_hwif_restore() functions
- 'init_default' and 'restore' arguments of ide_unregister()
- zeroeing of hwif->{dma,extra}_* fields in ide_unregister()

As an added bonus IDE core code size shrinks by ~3kB (x86-32).

v2:
* fix ide_unregister() arguments in cleanup_module() (Andrew Morton).

v3:
* fix ide_unregister() arguments in palm_bk3710.c.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Remove obsoleted "idex=base[,ctl[,irq]]" kernel parameters
  and update Documentation/ide/ide.txt.

* Remove no longer needed ide_forced chipset type.

v2:
* is_chipset_set[] -> is_chipset_set in ide.c.

* Documentation/ide/ide.txt fix.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

->busproc method is used by HDIO_SET_BUSSTATE ioctl but it has no chance
of working as intended (in 2.4.x days) because to issue an ioctl there
is a device node needed and:

- for BUSSTATE_TRISTATE+OFF it is too late (devices are already gone)

- for BUSSTATE_TRISTATE+ON it is too early (devices are not registered yet)

Just remove ->busproc method for now (it was only implemented by hpt366,
siimage and tc86c001 host drivers).

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

* Use ide_find_port() instead of ide_deprecated_find_port() in bast-ide/
  palm_bk3710/ide-cs/delkin_cb host drivers and in ide_register_hw().

* Remove no longer needed ide_deprecated_find_port().
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Describe noraid parameter with its name (and not its value).
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Fix kernel oops due to machine check occuring in init_chipset_siimage() on PPC
44x platforms.  These 32-bit CPUs have 36-bit physical address and PCI I/O and
memory spaces are mapped beyond 4 GB; arch/ppc/ code has a fixup in ioremap()
that creates an illusion of the PCI I/O and memory resources being mapped below
4 GB, while arch/powerpc/ code got rid of this fixup with PPC 44x having instead
CONFIG_RESOURCES_64BIT=y -- this causes the resources to be truncated to 32-bit
'unsigned long' type in this driver, and so non-existant memory being ioremap'ed
and then accessed...

Thanks to Valentine Barshak for providing an initial patch and explanations.
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Now that it can be built modular it needs a MODULE_LICENSE.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Skip probing port if "hdx=noprobe" parameter was used for both devices on it.

* Obsolete "idex=noprobe" parameter - it only works for ide_generic, cmd640
  and PCI hosts in Compatibility mode (on alpha/x86/ia64/m32r/mips/ppc32).
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

hpt366: fix section mismatch warnings

Fix following warnings:
WARNING: o-sparc64/vmlinux.o(.data+0x195a38): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt370
WARNING: o-sparc64/vmlinux.o(.data+0x195a40): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt370a
WARNING: o-sparc64/vmlinux.o(.data+0x195a48): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt372
WARNING: o-sparc64/vmlinux.o(.data+0x195a50): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt372n

Replace a static array with a small switch resulting in
more readable code.
Mark the pci table __devinitconst.

A lot of variables are const but annotated __devinitdata.
Annotating them __devinitconst would cause a section type
conflict error when build for 64 bit powerpc.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

[bart: manually ported it over via82cxxx changes]

From: Andrew Smith <asmith@tranquility.fsbusiness.co.uk>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Alan has noticed that distros always enabled burst mode
(+ datasheet confirms that it is the right thing to do).

Thus fix pdc202xx_old host driver to do it unconditionally
and remove no longer needed CONFIG_PDC202XX_BURST option.

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

Remove stale comment from the cs5520 IDE driver.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Remove write-only ->sata_misc[] from ide_hwif_t.

* Remove no longer used SATA_{MISC,PHY,IEN}_OFFSET defines.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

with module_param macro, the __setup code can be killed now:
	const __setup("all-generic-ide", ide_generic_all_on);

and the module name "generic.ko" is not descriptive to its functionality,
can be changed in Makefile, the "ide-pci-generic.ko" is better.

the ide-pci-generic.all-generic-ide parameter also documented
in Documentation/kernel-parameters.txt
Signed-off-by: NDenis Cheng <crquan@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* siimage.c: use hwif->sata_scr[SATA_{ERROR,STATUS}_OFFSET] instead of
  SATA_{ERROR,STATUS}_REG macros.

* Remove no longer needed SATA_*_REG macros.

While at it:

* Remove needless SATA Status register read from sil_sata_reset_poll().
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

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

* Add ->port_init_devs method to ide_hwif_t for a host specific
  initialization of devices on a port.  Call the new method from
  ide_port_init_devices().

* Convert ht6560b, qd65xx and opti621 host drivers to use the new
  ->port_init_devs method.

There should be no functionality changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Use the same bit for IDE_HFLAG_CS5520 and IDE_HFLAG_VDMA host flags
  (both are used only by cs5520 host driver currently).

* Add IDE_HFLAG_NO_IO32_BIT host flag and use it instead of ->no_io_32bit
  ide_hwif_t field.

* Add IDE_HFLAG_NO_UNMASK_IRQS host flag, then convert dtc2278 and rz1000
  host drivers to use it.

There should be no functionality changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

bast-ide.c/ide-cs.c/delkin_cb.c:

* Don't set 'restore' flag for ide_unregister() when initializing new
  interface.

rapide.c/ide-pnp.c/ide-cs.c/ide_platform.c/au1xxx-ide.c/delkin_cb.c/scc_pata.c:

* Don't set 'init_default' and 'restore' flags for ide_unregister() when
  removing interface.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Factor out code for finding ide_hwifs[] slot from ide_register_hw()
  to ide_deprecated_find_port().

* Convert bast-ide, ide-cs and delkin_cb host drivers to use ide_device_add()
  instead of ide_register_hw() (while at it drop doing "ide_unregister()" loop
  which tries to unregister _all_ IDE interfaces if useable ide_hwifs[] slot
  cannot be find).

This patch leaves us with only two ide_register_hw() users:
- drivers/macintosh/mediabay.c
- drivers/ide/ide.c
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Add 'init_default' (flag for calling init_hwif_default()) and 'restore'
  (flag for calling ide_hwif_restore()) arguments to ide_unregister().

* Update ide_unregister() users to set 'init_default' and 'restore' flags.

* No need to set 'init_default' flag in ide_register_hw() if the setup done
  by init_hwif_default() is going to be overridden by ide_init_port_hw().

* No need to set 'init_default' and 'restore' flags in cleanup_module().

There should be no functionality changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bart:
- drive-by CodingStyle fixups
Signed-off-by: NAlan Cox <alan@redhat.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

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

* Add ->cable_detect method to ide_hwif_t.

* Call the new method in ide_init_port() if:
  - the host supports UDMA modes > UDMA2 ('hwif->ultra_mask & 78')
  - DMA initialization was successful (if hwif->dma_base is not set
    ide_init_port() sets hwif->ultra_mask to zero)
  - "idex=ata66" is not used ('hwif->cbl != ATA_CBL_PATA40_SHORT')

* Convert PCI host drivers to use ->cable_detect method.

While at it:

* Factor out cable detection to separate functions (if not already done).

* hpt366.c/it8213.c/slc90e66.c:
  - don't check cable type if "idex=ata66" is used

* pdc202xx_new.c:
  - add __devinit tag to pdcnew_cable_detect()

* pdc202xx_old.c:
  - rename pdc202xx_old_cable_detect() to pdc2026x_old_cable_detect()
  - add __devinit tag to pdc2026x_old_cable_detect()
Reviewed-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Remove 'struct pci_dev *dev' argument from ide_hwif_setup_dma().

* Un-static ide_hwif_setup_dma() and add CONFIG_BLK_DEV_IDEDMA_PCI=n version.

* Add 'const struct ide_port_info *d' argument to ide_device_add[_all]().

* Factor out generic ports init from ide_pci_setup_ports() to ide_init_port(),
  move it to ide-probe.c and call it in in ide_device_add_all() instead of
  ide_pci_setup_ports().

* Move ->mate setup to ide_device_add_all() from ide_port_init().

* Add IDE_HFLAG_NO_AUTOTUNE host flag for host drivers that don't enable
  ->autotune currently.

* Setup hwif->chipset in ide_init_port() but iff pi->chipset is set
  (to not override setup done by ide_hwif_configure()).

* Add ETRAX host handling to ide_device_add_all().

* cmd640.c: set IDE_HFLAG_ABUSE_* also for CONFIG_BLK_DEV_CMD640_ENHANCED=n.

* pmac.c: make pmac_ide_setup_dma() return an error value and move DMA masks
  setup to pmac_ide_setup_device().

* Add 'struct ide_port_info' instances to legacy host drivers, pass them to
  ide_device_add() calls and then remove open-coded ports initialization.
Reviewed-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Don't override the cable type if the "idex=ata66" parameter was used.

While at it:

* atiixp.c: factor out cable detection to atiixp_cable_detect() from
  init_hwif_atiixp().

* cs5535.c: pass 'ide_hwif_t *hwif' instead of 'struct pci_dev *dev' to
  cs5535_cable_detect().

* scc_pata.c: factor out cable detection to scc_cable_detect() from
  init_hwif_scc() and remove incorrect comment.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

This patch converts users of pci_enable_device_bars() to the new
pci_enable_device_{io,mem} interface.

The new API fits nicely, except maybe for the QLA case where a bit of
code re-organization might be a good idea but I prefer sticking to the
simple patch as I don't have hardware to test on.

I'll also need some feedback on the cs5520 change.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>