Commit Graph

62 Commits

Author SHA1 Message Date
Russell King
123656d4cc Merge with Linus' kernel. 2006-01-07 14:40:05 +00:00
Russell King
a62c80e559 [ARM] Move AMBA include files to include/linux/amba/
Since the ARM AMBA bus is used on MIPS as well as ARM, we need
to make the bus available for other architectures to use.  Move
the AMBA include files from include/asm-arm/hardware/ to
include/linux/amba/

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-07 13:52:45 +00:00
Tejun Heo
8ffdc6550c [BLOCK] add @uptodate to end_that_request_last() and @error to rq_end_io_fn()
add @uptodate argument to end_that_request_last() and @error
to rq_end_io_fn().  there's no generic way to pass error code
to request completion function, making generic error handling
of non-fs request difficult (rq->errors is driver-specific and
each driver uses it differently).  this patch adds @uptodate
to end_that_request_last() and @error to rq_end_io_fn().

for fs requests, this doesn't really matter, so just using the
same uptodate argument used in the last call to
end_that_request_first() should suffice.  imho, this can also
help the generic command-carrying request jens is working on.

Signed-off-by: tejun heo <htejun@gmail.com>
Signed-Off-By: Jens Axboe <axboe@suse.de>
2006-01-06 09:49:03 +01:00
Kay Sievers
312c004d36 [PATCH] driver core: replace "hotplug" by "uevent"
Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:08 -08:00
Russell King
a8d3584a2d [ARM] Remove clk_use()/clk_unuse()
It seems that clk_use() and clk_unuse() are additional complexity
which isn't required anymore.  Remove them from the clock framework
to avoid the additional confusion which they cause, and update all
ARM machine types except for OMAP.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-03 18:41:37 +00:00
Russell King
d2b1839425 [MMC] Set correct capacity for 1024-byte block cards
We were passing set_capacity() the capacity we calculated in terms of
the number of blocks on the card, which happened to be the right units
for 512-byte block cards.  However, with 1024-byte block cards, we
end up setting the capacity to half the number of blocks.  Fix this
by shifting by the appropriate amount.

Thanks to Todd Blumer for pointing this out.

Use get_capacity() to report the card capacity, rather than
recalculating it from the CSD information.

Finally, use our chosen IO block size for the SET_BLOCKLEN command
rather than the CSD read block size.  Currently these are equivalent,
but will not be in the future.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-22 23:21:38 +00:00
Russell King
45f8245b97 [MMC] Explain the internals of mmc_power_up()
It seems that people get confused about what is happening in
mmc_power_up().  Add a comment to make it clear why we have
a two stage process.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-14 14:57:35 +00:00
Pierre Ossman
e781de4415 [MMC] Proper check of SCR error code
The routine reading the SCR wasn't paying proper attention to the
error codes returned from the driver.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-05 10:00:50 +00:00
Pierre Ossman
24117defab [MMC] Fix protocol errors
A review against MMC/SD specifications found some errors in the current
implementation.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-28 21:00:29 +00:00
Russell King
69177e890c [MMC] mmci doesn't need asm/irq.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-12 17:26:21 +00:00
Linus Torvalds
5643f000c1 Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel 2005-11-11 09:24:26 -08:00
Pierre Ossman
402771c786 [MMC] wbsd version 1.5
New kernel, new patches, new version.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-09 23:22:27 +00:00
Pierre Ossman
de1d09e3e2 [MMC] Add MODULE_AUTHOR to wbsd
'cause I'm in it for the chicks. ;)

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-09 23:21:49 +00:00
Pierre Ossman
93968d7551 [MMC] Use __devexit_p in wbsd
wbsd_*_remove() is declared as __devexit but __devexit_p isn't used
when taking their addresses.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-09 23:21:06 +00:00
Russell King
3ae5eaec1d [DRIVER MODEL] Convert platform drivers to use struct platform_driver
This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-09 22:32:44 +00:00
Linus Torvalds
254ce8dc88 Merge master.kernel.org:/home/rmk/linux-2.6-mmc 2005-11-07 13:32:52 -08:00
Uli Luckas
896937ad5c [ARM] 3120/1: Fix MMC/SD card driver resume deadlock
Patch from Uli Luckas

This is a simplification of patch 3116/1 as sugested by Russell King.

Signed-off-by: Uli Luckas <u.luckas@road-gmbh.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-07 21:22:07 +00:00
Jesper Juhl
6044ec8882 [PATCH] kfree cleanup: misc remaining drivers
This is the remaining misc drivers/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in misc files in
drivers/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
Acked-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Len Brown <len.brown@intel.com>
Acked-by: "Antonino A. Daplas" <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:54:05 -08:00
Pierre Ossman
d191634f7a [MMC] Use controller id instead of driver name for printks
The printks that aren't for debugging should use the name of the controller,
not the driver name. Multiple MMC controllers aren't that common today, but
this is the right way to do things.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-05 10:36:35 +00:00
Pierre Ossman
25cc5e5bd2 [MMC] Fix chip config in wbsd
There is a broken if clause in the wbsd driver that can cause the
driver to try and configure the chip even though none is found. This
results in i/o on invalid ports.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-05 10:16:50 +00:00
Russell King
34cf9e3750 [MMC] Response to write commands is R1 nor R1b
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-04 18:43:39 +00:00
Linus Torvalds
4fd5f8267d Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel
Manual #include fixups for clashes - there may be some unnecessary
2005-10-31 07:32:56 -08:00
Pierre Ossman
936d859265 [MMC] Use command class to determine read-only status
If a card doesn't support the "write block" command class then
any attempts to open the device should reflect this by denying
write access.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-30 10:15:58 +00:00
Russell King
9e1d98c5d8 [MMC] pxamci doesn't need to include asm/irq.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-30 10:10:13 +00:00
Pete Popov
ba264b3403 Au1[12]00 mmc driver. Only tested on the Au1200 at this point though
it should work on the Au1100 as well. Updated defconfig to include driver.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29 19:32:26 +01:00
Russell King
d052d1beff Create platform_device.h to contain all the platform device details.
Convert everyone who uses platform_bus_type to include
linux/platform_device.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-29 19:07:23 +01:00
Pierre Ossman
19c1f3ca42 [MMC] wbsd suspend support
Proper handling of suspend/resume in the wbsd driver.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-28 21:37:29 +01:00
Greg KH
6fbfddcb52 Merge ../bleed-2.6 2005-10-28 10:13:16 -07:00
Russell King
9480e307cd [PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacks
In PM v1, all devices were called at SUSPEND_DISABLE level.  Then
all devices were called at SUSPEND_SAVE_STATE level, and finally
SUSPEND_POWER_DOWN level.  However, with PM v2, to maintain
compatibility for platform devices, I arranged for the PM v2
suspend/resume callbacks to call the old PM v1 suspend/resume
callbacks three times with each level in order so that existing
drivers continued to work.

Since this is obsolete infrastructure which is no longer necessary,
we can remove it.  Here's an (untested) patch to do exactly that.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28 09:52:56 -07:00
Russell King
c6b8fdad14 [ARM] 3/4: Remove asm/hardware.h from Versatile and Integrator io.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-28 14:05:16 +01:00
Pierre Ossman
210ce2a750 [MMC] Clean up wbsd detection handling
The wbsd driver's card detection routing is a bit of a mess. This
patch cleans up the routine and makes it a bit more comprihensible.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-12 20:36:19 +01:00
Pierre Ossman
e062c8ae85 [MMC] Remove unused timer.
Remove timer that was left from earlier cleanup.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-12 20:35:54 +01:00
Pierre Ossman
fecf92ba05 [MMC] Remove trailing whitespace in wbsd
Clean out trailing whitespace caused by not-so-great editor since it
generates a lot of problems with editors configured to automatically
strip whitespace.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-12 12:09:25 +01:00
Russell King
c4a72cbdb3 [MMC] Add mmc_detect_change() delay support for wbsd driver
Convert wbsd to use the new delay functionality in mmc_detect_change()
rather than implementing its own timer.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-10 11:58:21 +01:00
Richard Purdie
c26971cbb3 [MMC] Add mmc_detect_change() delay support for PXAMCI driver
Allow PXA platforms to pass an appropriate delay value to the
PXA MCI driver for delaying detection changes.

Signed-Off-By: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-08 22:48:16 +01:00
Richard Purdie
8dc003359c [MMC] Allow detection/removal to be delayed
Change mmc_detect_change() to take a delay argument such that
the detection of card insertions and removals can be delayed
according to the requirements of the host driver or platform.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-08 17:53:01 +01:00
Pierre Ossman
4bc20a8d49 [PATCH] mmc: conditional scr sysfs entry
Only show the scr file in sysfs for SD cards.  Previously this was present
for all cards but had a contents of 0 for MMC cards.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:52 -07:00
Pierre Ossman
65ae2118e8 [PATCH] mmc: wbsd Secure Digital support
Add support for Secure Digital specific features in the wbsd driver.  Adds
support for read-only switch and wide bus transfers.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:51 -07:00
Richard Purdie
e619524fe5 [PATCH] Add write protection switch handling to the PXA MMC driver
Add a write protection switch handling code to the PXA MMC driver so
that platform specific code can provide it if available.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:51 -07:00
Pierre Ossman
5b4fd9aef7 [PATCH] sd: SD copyright notice
Credit where credit is due.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:51 -07:00
Pierre Ossman
f218278a45 [PATCH] sd: SD 4-bit bus
Infrastructure for 4-bit bus transfers with SD cards.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:51 -07:00
Pierre Ossman
a9c4342beb [PATCH] sd: SCR in sysfs
Export the SCR register through sysfs.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:51 -07:00
Pierre Ossman
b57c43ad81 [PATCH] sd: SCR register
Read the SD specific SCR register from the card.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:50 -07:00
Pierre Ossman
a00fc09029 [PATCH] sd: read-only switch
Support for the read-only switch on SD cards which must be enforced by the
host.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:50 -07:00
Pierre Ossman
335eadf2ef [PATCH] sd: initialize SD cards
Support for the Secure Digital protocol in the MMC layer.

A summary of the legal issues surrounding SD cards, as understood by yours
truly:

Members of the Secure Digital Association, hereafter SDA, are required to sign
a NDA[1] before given access to any specifications.  It has been speculated
that including an SD implementation would forbid these members to redistribute
Linux.  This is the basic problem with SD support so it is unclear if it even
is a problem since it has no effect on those of us that aren't members.

The SDA doesn't seem to enforce these rules though since the patches included
here are based on documentation made public by some of the members.  The most
complete specs[2] are actually released by Sandisk, one of the founding
companies of the SDA.

Because of this the NDA is considered a non-issue by most involved in the
discussions concerning these patches.  It might be that the SDA is only
interested in protecting the so called "secure" bits of SD, which so far
hasn't been found in any public spec.  (The card is split into two sections,
one "normal" and one "secure" which has an access scheme similar to TPM:s).

(As a side note, Microsoft is working to make things easier for us since they
want to be able to include the source code for a SD driver in one of their
development kits.  HP is making sure that the new NDA will allow a Linux
implementation.  So far only the SDIO specs have been opened up[3].  More will
hopefully follow.)

 [1] http://www.sdcard.org/membership/images/ippolicy.pdf
 [2] http://www.sandisk.com/pdf/oem/ProdManualSDCardv1.9.pdf
 [3] http://www.sdcard.org/sdio/Simplified%20SDIO%20Card%20Specification.pdf

This patch contains the central parts of the SD support.  If no MMC cards are
found on a bus then the MMC layer proceeds looking for SD cards.  Helper
functions are extended to handle the special needs of SD cards.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:50 -07:00
Pierre Ossman
1656fa579e [MMC] support for mmc chip select in wbsd
Use the chip select ios in the wbsd driver.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-03 16:45:49 +01:00
Pierre Ossman
865e9f13c9 [MMC] ios for mmc chip select
Adds a new ios for setting the chip select pin on MMC cards. Needed on
SD controllers which use this pin for other things and therefore cannot
have it pulled high at all times.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-03 16:45:02 +01:00
Russell King
dce7737718 [MMC] Use an IDR for host name indicies
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:42:52 +01:00
Russell King
1ad434d7cf [MMC] Use class device name for mmc host name
There's no point in having the host name duplicated between
the mmc_host structure and the encapsulated class device
structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:42:21 +01:00
Russell King
00b137cfda [MMC] Add MMC class devices
Create a mmc_host class to allow enumeration of MMC host controllers
even though they have no card(s) inserted.

Patch based on work by Pierre Ossman.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:41:24 +01:00