Add basic support for pata on iMX. It has been tested only on imx51.
SDMA support will probably be added later so this version supports only
PIO.

v2:
  - enable only when needed IORDY
  - use dev_get_drvdata
v3:
  - add missing clk_put() calls
  - use platform_get_irq()
  - fix resume code to avoid disabling IORDY on resume
v4:
  - Remove EXPERIMENTAL and switch to depends on ARCH_MXC
  - Use devm_kzalloc()
  - make clock a must-have
  - Use only 1 ioremap
Signed-off-by: NArnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Fix kconfig unmet dependency warning:

warning: (PATA_ARASAN_CF && VIDEO_TIMBERDALE && SND_SOC_SH4_SIU) selects DMA_ENGINE which has unmet direct dependencies (DMADEVICES)
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

The Arasan CompactFlash Device Controller has three basic modes of
operation: PC card ATA using I/O mode, PC card ATA using memory mode, PC card
ATA using true IDE modes.

Currently driver supports only True IDE mode.
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

The driver makes use of the two options (CONFIG_SATA_DWC_[V]DEBUG) to enable
the debug output but they both are absent in drivers/ata/Kconfig...
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.

This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel.  A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).

Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.
Reviewed-by: NIngo Molnar <mingo@elte.hu>
Acked-by: NDavid Woodhouse <david.woodhouse@intel.com>
Signed-off-by: NDavid Rientjes <rientjes@google.com>
Cc: Greg KH <gregkh@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robin Holt <holt@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

CONFIG_HAVE_PATA_PLATFORM, by virtue of where its defined, has a
dependency on CONFG_ATA and CONFIG_ATA_SFF.  This causes Kconfig
warnings when it is selected by various architectures, such as

  warning: (ARCH_VEXPRESS && <choice> || ARCH_RPC && <choice> || MACH_VPAC270 && ARCH_PXA || MACH_REALVIEW_PB11MP && ARCH_REALVIEW || MACH_REALVIEW_PBA8 && ARCH_REALVIEW || MACH_REALVIEW_PBX && ARCH_REALVIEW || MACH_BAST_IDE && ARCH_S3C2410 || MACH_ANUBIS && ARCH_S3C2410) selects HAVE_PATA_PLATFORM which has unmet direct dependencies (ATA && ATA_SFF)

Since this option is only used to control visibility of the
CONFIG_PATA_PLATFORM option and isn't itself visible in the menu,
it is straightforward to simply remove these dependencies rather
than adjust all the architectures.
Signed-off-by: NNick Bowler <nbowler@elliptictech.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Commit 28e21c8c (pata_hpt3x2n: Add HPT371N
support and other bits) forgot to update the driver's Kconfig entry, heading
comment, and module description (that also wrongly claims support of HPT302)
which may confuse users...
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Add support for Acard ATP8620 host controller.

Based upon initial version by Jeff Garzik.
Signed-off-by: NDavid Milburn <dmilburn@redhat.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Found by this build-error if BMDMA is disabled:

drivers/ata/pata_mpc52xx.c: In function 'mpc52xx_ata_init_one':
drivers/ata/pata_mpc52xx.c:662: error: 'ata_bmdma_interrupt' undeclared (first use in this function)
...

Move the Kconfig entry to the proper location as needed since
9a7780c9 (libata-sff: make BMDMA optional)
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

pata_cs5536 does work on the other platforms(e.g. Loongson, a MIPS
variant), so, remove the dependency of X86_32 and fix the building
errors under the other platforms via only reserving the X86_32 specific
parts for X86_32.

pata_amd also supports cs5536 IDE controller, but this one saves about
33k for the compressed kernel image(vmlinuz for MIPS).
Signed-off-by: NZhang Le <r0bertz@gentoo.org>
Signed-off-by: NChen Jie <chenj@lemote.com>
Signed-off-by: NWu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Winbond W83759A controller is fully supported by pata_legacy driver
so remove no longer needed pata_winbond driver.

Leave PATA_WINBOND_VLB config option for compatibility reasons
and teach pata_legacy to preserve the old behavior of pata_winbond
driver.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Adds support for the Samsung PATA controller. This driver is based
on the Libata subsystem and references the earlier patches sent for
IDE subsystem.
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: NSergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This patch enables the on-chip DWC SATA controller of the AppliedMicro
processor 460EX.
Signed-off-by: NRupjyoti Sarmah <rsarmah@appliedmicro.com>
Signed-off-by: NMark Miesfeld <mmiesfeld@appliedmicro.com>
Signed-off-by: NProdyut Hazarika <phazarika@appliedmicro.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This patch adds a driver for a harddrive attached to PXA address and data bus.
Unlike pata_platform, this driver allows usage of PXA DMA controller, making the
transmission speed 3x higher.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Acked-by: NJeff Garzik <jgarzik@redhat.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Make BMDMA optional depending on new config variable CONFIG_ATA_BMDMA.
In Kconfig, drivers are grouped into five groups - non-SFF native, SFF
w/ custom DMA interface, SFF w/ BMDMA, PIO-only SFF, and generic
fallback / legacy ones.  Kconfig and Makefile are reorganized
according to the groups and ordered alphabetically inside each group.

ata_ioports.bmdma_addr and ata_port.bmdma_prd[_dma] are put into
CONFIG_ATA_BMDMA, as are all bmdma related ops, variables and
functions.

This increase the binary size slightly when BMDMA is enabled but on
both native-only and PIO-only configurations the size is slightly
reduced.  Either way, the size difference is insignificant.  This
change is more meaningful to signify the separation between SFF and
BMDMA and as a tool to verify the separation.
Signed-off-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

sata_inic162x no longer uses SFF interface.  Move it out of
CONFIG_ATA_SFF.
Signed-off-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This can be used for AHCI-compatible interfaces implemented inside
System-On-Chip solutions, or AHCI devices connected via localbus.
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This is needed for some unsupported hardware setups on strange 64bit
mainboards where crazy stuff has been done like putting flash ata adapters
on the LPC bus, or where the real hardware is hidden/confused.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

In March 2008 commit 0ac4a3c2 ("ACPI: fix
ATA_ACPI build") made CONFIG_ACPI_DOCK be selected by CONFIG_ATA_ACPI because
of a build error when CONFIG_ATA_ACPI=y and CONFIG_ACPI_DOCK=m.

However, in September 2008 commit 898b054f
("dock: make dock driver not a module") removed the possibility of having
CONFIG_ACPI_DOCK=m and therefore there is no need for selecting it when
CONFIG_ATA_ACPI=y.

This makes the kernel ~5 Kb smaller for people who don't have a dock by
allowing them to not have ACPI_DOCK compiled-in because of ATA_ACPI=y.
Signed-off-by: NCarlos R. Mafra <crmafra@aei.mpg.de>
Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

This is a libata driver for the "macio" IDE controller used on most Apple
PowerMac and PowerBooks. It's a libata equivalent of drivers/ide/ppc/pmac.c

It supports all the features of its predecessor, including mediabay hotplug
and suspend/resume. It should also support module load/unload.

The timing calculations have been simplified to use pre-calculated tables
compared to drivers/ide/pmac.c and it uses the new mediabay interface
provided by a previous patch.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: NTejun Heo <tj@kernel.org>

We were never able to get docs for this out of Toshiba for years. Dave
Barnes produced a NetBSD driver however and from that we can fill in the
needed tables.

As we correct the PCI identifiers a bit also update the old ide generic driver
at the same time so it stays compiling.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Remove the experimental tag on Parallel ATA drivers. Though some of the
individual PATA drivers are still marked as experimental, as a group they can
hardly be considered to be, given they've been used in various distros for some
time.
Signed-off-by: NRobert Hancock <hancockrwd@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This is a new pata driver for ARTOP 867X 64bit 4-channel UDMA133 ATA ctrls.
Based on the Atp867 data sheet rev 1.2, Acard, and in part on early ide codes
from Eric Uhrhane <ericu@google.com>.
Signed-off-by: NJohn(Jung-Ik) Lee <jilee@google.com>
Reviewed-by: NGrant Grundler <grundler@google.com>
Reviewed-by: NGwendal Gringo <gwendal@google.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

From: Alan Cox <alan@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This patch improve libata's output for error/notification messages
to allow easier comprehension and debugging:

When ATAPI commands issued through the SCSI layer fail, use SCSI
functions to print the CDB in human-readable form instead of just
dumping out the CDB in hex.

Print out the name of the failed command (as defined by the ATA
specification) in error handling output along with the raw register
contents.

When reporting status of ACPI taskfile commands executed on resume,
also output the names of the commands being executed (or not) in
readable form.

Since the extra data for printing command names increases kernel
size slightly, a config option has been added to allow disabling
command name output (as well as some of the error register parsing)
for those highly sensitive to kernel text size.
Signed-off-by: NRobert Hancock <hancockrwd@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This patch provides PATA driver for CompactFlash interface in True IDE
mode on AT91SAM9260 SoC.
Signed-off-by: NSergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Support for Palm LifeDrive's internal harddrive.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Acked-by: NJeff Garzik <jgarzik@redhat.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NMatt LaPlante <kernel1@cyberdogtech.com>
Acked-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Update Kconfig for sata_mv with full list of chips supported,
and (finally!) remove the "EXPERIMENTAL" designations.
Signed-off-by: NMark Lord <mlord@pobox.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Cavium OCTEON processor support was recently merged, so now we have
this CF driver for your consideration.

Most OCTEON variants have *no* DMA or interrupt support on the CF
interface so for these, only PIO is supported.  Although if DMA is
available, we do take advantage of it.
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This patch adds MDMA/UDMA support using BestComm for DMA on the MPC5200
platform.  Based heavily on previous work by Freescale (Bernard Kuhn,
John Rigby) and Domen Puncer.

With this patch, a SanDisk Extreme IV CF card gets read speeds of
approximately 26.70 MB/sec.
Signed-off-by: NTim Yamin <plasm@roo.me.uk>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Various tags are now way out of date
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

The RPC machine type now selects HAVE_PATA_PLATFORM so we can remove
the special case in the PATA_PLATFORM configuration code.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

I've been chasing Jeff about this for months.  Jeff added the Marvell
device identifiers to the ahci driver without making the AHCI driver
handle the PATA port. This means a lot of users can't use current
kernels and in most distro cases can't even install.

This has been going on since March 2008 for the 6121 Marvell, and late 2007
for the 6145!!!

This was all pointed out at the time and repeatedly ignored. Bugs assigned
to Jeff about this are ignored also.

To quote Jeff in email

> "Just switch the order of 'ahci' and 'pata_marvell' in
> /etc/modprobe.conf, then use Fedora's tools regenerate the initrd.

> See?  It's not rocket science, and the current configuration can be
> easily made to work for Fedora users."

(Which isn't trivial, isn't end user, shouldn't be needed, and as it usually
breaks at install time is in fact impossible)

To quote Jeff in August 2007

> "   mv-ahci-pata
> Marvell 6121/6141 PATA support.  Needs fixing in the 'PATA controller
> command' area before it is usable, and can go upstream."

Only he add the ids anyway later and caused regressions, adding a further
id in March causing more regresions.

The actual fix for the moment is very simple. If the user has included
the pata_marvell driver let it drive the ports. If they've only selected
for SATA support give them the AHCI driver which will run the port a fraction
faster. Allow the user to control this decision via ahci.marvell_enable as
a module parameter so that distributions can ship 'it works' defaults and
smarter users (or config tools) can then flip it over it desired.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

While doing some easy cleanups on the sparc code I noticed that the
CONFIG_SUN4 code seems to be worse than the rest - there were some
"I don't know how it should work, but the current code definitely cannot
work." places.

And while I have seen people running Linux on machines like a
SPARCstation 5 a few years ago I don't recall having seen sun4
machines, even less ones running Linux.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add HAVE_PATA_PLATFORM to select the pata platform driver
to ensure that we do not end up with a long 'depends on' list
when other users of this driver turn up.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

sata_inic162x is now ready for production use.  Bump the version,
explain what's working and what's not and drop EXPERIMENTAL.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

This patch adds Intel SCH chipsets (AF82US15W, AF82US15L, AF82UL11L)
PATA controller support.
Signed-off-by: NAlek Du <alek.du@intel.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>