Commit Graph

343 Commits

Author SHA1 Message Date
Juha [êölä
c723e08af1 [ARM] 3744/1: MMC: mmcqd gets stuck when block queue is plugged
Patch from Juha [êölä

When the block queue is plugged, mq->req must be set to NULL.
Otherwise mq->req might be left non-NULL, even though mmcqd is
not processing a request, thus preventing the MMC queue thread from
being woken up when new requests do arrive.

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-08-06 09:58:22 +01:00
Pierre Ossman
8b1b21853b [MMC] Change SDHCI version error to a warning
O2 Micro's controllers have a larger specification version value and are
therefore denied by the driver. When bypassing this check they seem to work
fine. This patch makes the code a bit more forgiving by changing the error
to a warning.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-13 16:17:46 +01:00
Pierre Ossman
fb61e28951 [MMC] Fix incorrect register access
There was a writel() being used on a 16-bit register.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-13 16:17:45 +01:00
Ingo Molnar
0afffc723c [PATCH] lockdep: annotate on-stack completions, mmc
lockdep needs to have the waitqueue lock initialized for on-stack
waitqueues implicitly initialized by DECLARE_COMPLETION().

Annotate mmc_wait_for_req()'s on-stack completion accordingly.

Has no effect on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:27:10 -07:00
Linus Torvalds
f82bc1762e Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc:
  [MMC] sdhci: remove duplicate error message
  [MMC] sdhci: force DMA on some controllers
  [MMC] sdhci: quirk for broken reset
  [MMC] sdhci: Add SDHCI controller ids
2006-07-02 16:35:07 -07:00
Linus Torvalds
a8c4c20dfa Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits)
  [ARM] 3541/2: workaround for PXA27x erratum E7
  [ARM] nommu: provide a way for correct control register value selection
  [ARM] 3705/1: add supersection support to ioremap()
  [ARM] 3707/1: iwmmxt: use the generic thread notifier infrastructure
  [ARM] 3706/2: ep93xx: add cirrus logic edb9315a support
  [ARM] 3704/1: format IOP Kconfig with tabs, create more consistency
  [ARM] 3703/1: Add help description for ARCH_EP80219
  [ARM] 3678/1: MMC: Make OMAP MMC work
  [ARM] 3677/1: OMAP: Update H2 defconfig
  [ARM] 3676/1: ARM: OMAP: Fix dmtimers and timer32k to compile on OMAP1
  [ARM] Add section support to ioremap
  [ARM] Fix sa11x0 SDRAM selection
  [ARM] Set bit 4 on section mappings correctly depending on CPU
  [ARM] 3666/1: TRIZEPS4 [1/5] core
  ARM: OMAP: Multiplexing for 24xx GPMC wait pin monitoring
  ARM: OMAP: Fix SRAM to use MT_MEMORY instead of MT_DEVICE
  ARM: OMAP: Update dmtimers
  ARM: OMAP: Make clock variables static
  ARM: OMAP: Fix GPMC compilation when DEBUG is defined
  ARM: OMAP: Mux updates for external DMA and GPIO
  ...
2006-07-02 15:04:12 -07:00
Linus Torvalds
168d04b3b4 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc:
  [MMC] sdhci: version bump sdhci
  [MMC] sdhci: support controller specific quirks
  [MMC] sdhci: more DMA capabilities tests
  [MMC] sdhci: reset sdhci controller early
  [MMC] sdhci: check controller version
  [MMC] sdhci: check only relevant inhibit bits
  [MMC] sdhci: Test for invalid block size
  [MMC] sdhci: Avoid sdhci DMA boundaries
  [MMC] Fix sdhci PIO routines
  [MMC] sdhci: fix interrupt handling
  [MMC] sdhci: correct register order
  [MMC] sdhci: proper timeout handling
  [MMC] sdhci: fix sdhci reset timeout
  [MMC] sdhci: fix timeout loops in sdhci
  [MMC] sdhci: support for multiple voltages
  [MMC] sdhci: print device id
  [MMC] sdhci: check SDHCI base clock
2006-07-02 14:58:03 -07:00
Thomas Gleixner
dace145374 [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:50 -07:00
Pierre Ossman
4cca56c504 [MMC] sdhci: remove duplicate error message
When there is remaining blocks untransferred, we get two error messages saying
almost the same thing.  Make sure at most one is shown.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 18:02:02 +01:00
Pierre Ossman
98608076a2 [MMC] sdhci: force DMA on some controllers
Some controllers incorrectly report that the cannot do DMA.  Forcefully enable
it for those that we know it works fine on.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 18:02:01 +01:00
Pierre Ossman
645289dca5 [MMC] sdhci: quirk for broken reset
Some controllers fail to complete a reset unless you touch the clock register
first.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 18:02:00 +01:00
Pierre Ossman
2c5f394025 [MMC] sdhci: version bump sdhci
New version number for sdhci driver.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:55:00 +01:00
Pierre Ossman
df673b227c [MMC] sdhci: support controller specific quirks
As some specific controllers will have bugs, we need a way to map special
behaviour to certain hardware.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:54:59 +01:00
Pierre Ossman
6743527441 [MMC] sdhci: more DMA capabilities tests
Properly test for controller interface to see if it's DMA capable.  As many
controllers are misconfigured in this regard, also add debug parameters to
force DMA support either way.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:54:56 +01:00
Pierre Ossman
d96649ed5a [MMC] sdhci: reset sdhci controller early
The specification states that the capabilities register might need a reset to
get correct values after boot up.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:54:54 +01:00
Pierre Ossman
4a9655051f [MMC] sdhci: check controller version
Check the interface version of the controller and bail out if it's an unknown
version.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:54:53 +01:00
Pierre Ossman
fd2208d7c7 [MMC] sdhci: check only relevant inhibit bits
Conform to the sdhci specification as to which inhibit bits should be checked
at different times.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:54:50 +01:00
Pierre Ossman
1d676e0297 [MMC] sdhci: Test for invalid block size
The controller has an upper limit on the block size. Make sure we do not
cross it.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:52:10 +01:00
Pierre Ossman
bab7696184 [MMC] sdhci: Avoid sdhci DMA boundaries
The sdhci controllers will issue an interrupt when a configurable number of
bytes have been transfered using DMA. The purpose is to handle multiple,
scattered memory pages.

Unfortunately, it requires that all transfers are completely aligned to
memory pages, which we cannot guarantee. So we just disable the function.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:51:35 +01:00
Pierre Ossman
a406f5a3b6 [MMC] Fix sdhci PIO routines
The sdhci controllers operate with blocks, not bytes. The PIO routines must
therefore make sure that the minimum unit transfered is a complete block.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:50:59 +01:00
Pierre Ossman
3192a28f7d [MMC] sdhci: fix interrupt handling
The specification says that interrupts should be cleared before the source is
removed.  We should also not set unknown bits.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:02:05 +01:00
Pierre Ossman
c7fa9963ee [MMC] sdhci: correct register order
The sdhci specification states that some registers must be written to in a
specific order.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:02:04 +01:00
Pierre Ossman
1c8cde92fa [MMC] sdhci: proper timeout handling
Use the give timeout clock and calculate a proper timeout instead of using the
maximum at all times.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:02:04 +01:00
Pierre Ossman
e16514d8d8 [MMC] sdhci: fix sdhci reset timeout
The reset register is automatically cleared when the reset has completed.
Hence, we should busy wait and not have a fixed delay.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:02:03 +01:00
Pierre Ossman
7cb2c76fa2 [MMC] sdhci: fix timeout loops in sdhci
The current timeout loop assume that jiffies are updated.  This might not be
the case depending on locks and if the kernel is compiled without preemption.
Change the system to use a counter and fixed delays.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:02:02 +01:00
Pierre Ossman
146ad66eac [MMC] sdhci: support for multiple voltages
The sdhci controllers can support up to three voltage levels.  Detect which
and report back to the MMC layer.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:02:01 +01:00
Pierre Ossman
51f82bc07a [MMC] sdhci: print device id
As sdhci is a generic driver, it is helpful to see some more specific
identification of the actual hardware in dmesg.  PCI vendor, device and
revision is sufficient in most cases.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:02:01 +01:00
Pierre Ossman
8ef1a14379 [MMC] sdhci: check SDHCI base clock
A base clock value of 0 means that the driver must get the base clock through
some other means.  As we have no other way of getting it, we must abort.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-02 16:01:59 +01:00
Tony Lindgren
ce9c1a8388 [ARM] 3678/1: MMC: Make OMAP MMC work
Patch from Tony Lindgren

This patch makes OMAP MMC work again:

- Fix compile errors
- Do not ioremap base as it is already statically mapped
- Clean-up platform device handling
- Fix compile warnings

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-01 19:56:44 +01:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Linus Torvalds
602cada851 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits)
  [PATCH] devfs: Remove it from the feature_removal.txt file
  [PATCH] devfs: Last little devfs cleanups throughout the kernel tree.
  [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
  [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
  [PATCH] devfs: Remove devfs_remove() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
  [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree
  [PATCH] devfs: Remove devfs support from the sound subsystem
  [PATCH] devfs: Remove devfs support from the ide subsystem.
  [PATCH] devfs: Remove devfs support from the serial subsystem
  [PATCH] devfs: Remove devfs from the init code
  [PATCH] devfs: Remove devfs from the partition code
  ...
2006-06-29 14:19:21 -07:00
Greg Kroah-Hartman
e29419fffc [PATCH] 64bit resource: fix up printks for resources in misc drivers
This is needed if we wish to change the size of the resource structures.

Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com>

Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-27 09:23:59 -07:00
Tony Lindgren
7ff879dbcd ARM: OMAP: Fix DMA channel irq handling for omap24xx
- DMA CSR register is cleared by reading on omap1, but on
  omap2 it is cleard by writing to it.

- DMA TOUT interrupt does not exist on omap24xx, rename it

- Add SECURE and MISALIGNED errors by default for omap24xx

- Add defines for external DMA request lines

Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-06-26 16:16:15 -07:00
Greg Kroah-Hartman
ce7b0f46bb [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
And remove the now unneeded number field.
Also fixes all drivers that set these fields.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:08 -07:00
Greg Kroah-Hartman
ff23eca3e8 [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
Also fixes up all files that #include it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:08 -07:00
Greg Kroah-Hartman
8ab5e4c15b [PATCH] devfs: Remove devfs_remove() function from the kernel tree
Removes the devfs_remove() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:07 -07:00
Greg Kroah-Hartman
95dc112a57 [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
Removes the devfs_mk_dir() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:06 -07:00
Andrew Victor
b44fb7a09e [ARM] 3565/1: AT91RM9200 MMC update
Patch from Andrew Victor

This patch includes code cleanups and minor fixes to the AT91RM9200 MMC
driver.

1. Replace calls to DBG() with pr_debug().
2. 'host' can never be null, so don't bother checking for that case.
3. Remove SA_SAMPLE_RANDOM from request_irq().  [Patch from Matt
Mackall]
4. clk_get() doesn't return NULL on error - need to test returned value
with IS_ERR().
5. Free resources if clk_get() or request_irq() fails.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-19 13:06:05 +01:00
Russell King
a3fd4a1b9c [MMC] Convert all hosts except mmci to use data->blksz
The MMC specification allows non-power of two block sizes.  As such,
we should not pass the log2 block size to host drivers, but instead
pass the byte size.

However, ARM MMCI can only work with log2 block size, so continue to
pass both the log2 block size and byte block size.  This means that
for the moment, the byte block size must remain a power of two, but
this is the first stage of removing this restriction for other hosts.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-19 13:05:08 +01:00
Andrew Morton
e474c66b1c [MMC] sdhci truncated pointer fix
On 64-bit machines, we just lost the uppermost 32 bits.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-12 22:10:22 +01:00
Ralf Baechle
092d01e260 [MMC] Prevent au1xmmc.c breakage on non-Au1200 Alchemy
The driver is selectable on other than Au1200 Alchemy systems but won't
build nor work - there is no MMC hw.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-04 17:40:58 +01:00
Pierre Ossman
51c4032740 [MMC] Fix premature use of md->disk
md->disk was being used in a debug message before it was allocated.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-24 08:35:31 -07:00
Pavel Pisa
2c171bf134 [ARM] 3531/1: i.MX/MX1 SD/MMC ensure, that clock are stopped before new command and cleanups
Patch from Pavel Pisa

There has been problems that for some paths that clock are not stopped
during new command programming and initiation. Result is issuing
of incorrect command to the card. Some other problems are cleaned too.
Noisy report of known ERRATUM #4 has been suppressed.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-19 21:48:03 +01:00
Russell King
920e70c5c6 [MMC] Move set_ios debugging into mmc.c
Rather than having every driver duplicate the set_ios debugging,
provide a single version in mmc.c which can be expanded as we
add additional functionality.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-04 18:22:51 +01:00
Russell King
fe10c6abea [MMC] Correct mmc_request_done comments
mmc_request_done should be called at the end of handling a request, not
between the data and initial command parts of the request.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-04 13:51:45 +01:00
Russell King
d78e9079af [MMC] PXA: reduce the number of lines PXAMCI debug uses
There's no reason for the PXAMCI debug code to print so many lines - it
causes the kernel buffer to overflow when trying to debug this driver.
Remove some debug messages which are duplicated by core code, and
combine other messages, resulting in fewer characters written to the
kernel log.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-02 20:18:53 +01:00
Russell King
58741e8b36 [MMC] PXA and i.MX: don't avoid sending stop command on error
Always send a stop command at the end of a data transfer.  If we avoid
sending the stop command, some cards remain in data transfer mode, and
refuse to accept further read/write commands.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-02 20:02:39 +01:00
Russell King
37be4e7809 [MMC] extend data timeout for writes
The CSD contains a "read2write factor" which determines the multiplier to
be applied to the read timeout to obtain the write timeout.  We were
ignoring this parameter, resulting in the possibility for writes being
timed out too early.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-05-02 17:24:59 +01:00
Pavel Pisa
81d38428df [ARM] 3485/1: i.MX: MX1 SD/MMC fix of unintentional double start possibility
Patch from Pavel Pisa

The clock starting imxmci_start_clock() function contains hardware
issue workaround, which repeats start attempt, if SDHC does not react on
the first trial. But the second start attempt can be taken even, if the
first succeed and test code misses time limited clock running phase
due to delay caused by schedule to other task or some another device
interrupt. This change enables to detect such situation.
The performance is not issue, because usually at full clock rate
only about six loops in delay cycle are needed.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-30 15:35:54 +01:00
Russell King
3d63abe56b [MMC] pxamci: fix data timeout calculation
The MMC layer gives us two parts for the timeout calculation - a fixed
timeout in nanoseconds, and a card clock-speed dependent part.

The PXA MMC hardware allows for a timeout based on the fixed host clock
speed only.  This resulted in some cards being given a short timeout,
and therefore failing to work.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-24 11:27:02 +01:00
Pavel Pisa
56ca904053 [ARM] 3457/1: i.MX: SD/MMC support for i.MX/MX1
Patch from Pavel Pisa

This patch adds support of i.MX/MX1 SD/MMC controller.
It has been significantly redesigned from the original Sascha Hauer's
version to support scatter-gather DMA, to conform to latest Pierre Ossman's
and Russell King's MMC-SD Linux 2.6.x infrastructure.
The handling of all events has been moved to the softirq context
and is designed with no busy-looping in mind. Unfortunately
some controller bugs has to be overcome by limited looping
about 2-20 usec but these are observed only for initial card
recognition phase.

There are still some missing/missed IRQs problems under heavy load.
Help of somebody with access to the full SDHC design information
is probably necessary.

Regenerated against 2.6.16-git-060402 to solve clash with other patches.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-02 19:27:07 +01:00
Andrew Victor
65dbf34393 [ARM] 3456/1: AT91RM9200 support for 2.6 (MMC/SD driver)
Patch from Andrew Victor

This patch adds support for the MMC/SD card interface on the Atmel
AT91RM9200 processor.

Original driver was by Nick Randell, but a number of people have
subsequently worked on it. It's currently maintained by Malcolm Noyes.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-02 19:18:51 +01:00
Russell King
c65631781e [MMC] Pass -DDEBUG on compiler command line if MMC_DEBUG selected
Rather than each driver test MMC_DEBUG itself, and define DEBUG,
pass it in via the makefile instead.

Fix drivers to use pr_debug() where appropriate, and avoid defining
a DEBUG() macro.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-29 09:30:20 +01:00
Carlos Aguiar
730c9b7e66 [MMC] Add OMAP MMC host driver
Adds OMAP MMC driver.

Signed-off-by: Juha Yrjölä <juha.yrjola@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Carlos Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-29 09:21:00 +01:00
Rusty Russell
8d3b33f67f [PATCH] Remove MODULE_PARM
MODULE_PARM was actually breaking: recent gcc version optimize them out as
unused.  It's time to replace the last users, which are generally in the
most unloved drivers anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:52 -08:00
Pierre Ossman
d129bceb1d [PATCH] mmc: Secure Digital Host Controller Interface driver
Driver for the Secure Digital Host Controller Interface specification.

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>
2006-03-24 07:33:27 -08:00
David Vrabel
489447380a [PATCH] handle errors returned by platform_get_irq*()
platform_get_irq*() now returns on -ENXIO when the resource cannot be
found.  Ensure all users of platform_get_irq*() handle this error
appropriately.

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20 13:42:57 -08:00
Martin Michlmayr
732b828860 [MMC] au1xmmc: Fix a compilation warning ('status' is not used)
Fix a trivial compilation warning:

  CC      drivers/mmc/au1xmmc.o
drivers/mmc/au1xmmc.c: In function ‘au1xmmc_dma_callback’:
drivers/mmc/au1xmmc.c:743: warning: unused variable ‘status’

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-04 23:02:10 +00:00
Martin Michlmayr
e142c24cf8 [MMC] au1xmmc: Fix linking error because mmc_rsp_type doesn't exist
drivers/mmc/au1xmmc.c doesn't compile because commit
e92251762d introduced a typo and passes
the wrong argument to the mmc_resp_type macro.

Error because of the typo:

  CC      drivers/mmc/au1xmmc.o
drivers/mmc/au1xmmc.c: In function ‘au1xmmc_send_command’:
drivers/mmc/au1xmmc.c:197: warning: implicit declaration of function ‘mmc_rsp_type’
...
  LD      .tmp_vmlinux1
drivers/built-in.o: In function `au1xmmc_request':au1xmmc.c:(.text+0x89504): undefined reference to `mmc_rsp_type'
:au1xmmc.c:(.text+0x8968c): undefined reference to `mmc_rsp_type'
make: *** [.tmp_vmlinux1] Error 1

Error because of the wrong argument:

  CC      drivers/mmc/au1xmmc.o
drivers/mmc/au1xmmc.c: In function ‘au1xmmc_send_command’:
drivers/mmc/au1xmmc.c:197: error: invalid type argument of ‘->’

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-04 23:01:39 +00:00
Martin Michlmayr
b256f9df4a [MMC] au1xmmc: Fix compilation error by using platform_driver
drivers/mmc/au1xmmc.c currently doesn't compile; it needs to be
converted to use platform_driver.  I cannot test this change because
of lack of hardware but I followed the drivers this one is based on,
and the code is certainly not worse than before.

drivers/mmc/au1xmmc.c: At top level:
drivers/mmc/au1xmmc.c:1002: error: ‘platform_bus_type’ undeclared here (not in a function)
make[2]: *** [drivers/mmc/au1xmmc.o] Error 1

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-04 23:01:13 +00:00
Russell King
0425a14213 [MMC] mmci: allow small data transfers
If a data transfer is small (less than a FIFO size) we would
hang waiting for the data to be read due to the PIO interrupt
not occuring.  We allowed for this in our PIO interrupt handler,
but not when setting up a data transfer.

Apply the "fix" when setting up a data transfer as well.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-16 16:48:31 +00:00
Jordan Crouse
be92cbb996 [MMC] Remove extra character in AU1XXX MMC Kconfig entry
An obvious vi fat finger on my part.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-08 22:23:05 +00:00
Russell King
e92251762d [MMC] Add MMC command type flags
Some hosts need to know the command type, so pass it via a set of
flags in cmd->flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-02 12:23:12 +00:00
Linus Torvalds
150a631fc5 Merge master.kernel.org:/home/rmk/linux-2.6-mmc 2006-01-14 19:44:01 -08:00
Andrew Morton
51828abc17 [MMC] mmc_blk_probe() warning fix
drivers/mmc/mmc_block.c: In function `mmc_blk_probe':
drivers/mmc/mmc_block.c:467: warning: long unsigned int format, different type arg (arg 5)

We don't know what size sector_t is - cast it.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13 21:44:18 +00:00
Russell King
4d0b653cdf [PATCH] Add mmc_bus_type probe and remove methods
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 11:26:08 -08:00
Arjan van de Ven
a621aaed69 [MMC+MFD] Convert mmc to mutexes
convert mfd and mmc to mutexes

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-12 18:43:35 +00:00
Linus Torvalds
8e9c238c38 Merge master.kernel.org:/home/rmk/linux-2.6-mmc 2006-01-09 15:08:33 -08:00
Russell King
788ee7b098 [MMC] Add DATA_MULTI flag
Some hosts need to know that a transfer will be multi-block.
Add a data flag to indicate multiple data block transfers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09 21:12:17 +00:00
Christoph Hellwig
a885c8c431 [PATCH] Add block_device_operations.getgeo block device method
HDIO_GETGEO is implemented in most block drivers, and all of them have to
duplicate the code to copy the structure to userspace, as well as getting
the start sector.  This patch moves that to common code [1] and adds a
->getgeo method to fill out the raw kernel hd_geometry structure.  For many
drivers this means ->ioctl can go away now.

[1] the s390 block drivers are odd in this respect.  xpram sets ->start
    to 4 always which seems more than odd, and the dasd driver shifts
    the start offset around, probably because of it's non-standard
    sector size.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@suse.de>
Cc: <mike.miller@hp.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:54 -08:00
Pierre Ossman
cfa7f52164 [MMC] Lindent wbsd driver
Fix the coding style in the wbsd driver once and for all.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-08 18:17:55 +00:00
Pierre Ossman
cb757b4eef [MMC] Support MMC version 4 cards
Version 4 of the MMC specification increased the version number of the
CID structure. None of the fields changed though so the only required
change is adding '4' to the approved list.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-08 14:23:02 +00:00
Pierre Ossman
5e68d95d15 [MMC] wbsd pnp suspend
Allow the wbsd driver to use the new suspend/resume functions added to
the PnP layer.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-08 14:21:52 +00:00
Linus Torvalds
8995b161eb Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-01-07 10:45:22 -08:00
Linus Torvalds
f9c5d0451b Merge master.kernel.org:/home/rmk/linux-2.6-mmc 2006-01-07 10:43:40 -08:00
Russell King
f8ce25476d [ARM] Move asm/hardware/clock.h to linux/clk.h
This is needs to be visible to other architectures using the AMBA
bus and peripherals.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-07 16:15:52 +00:00
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
Evgeniy Polyakov
f3e2628bed [MMC] mmci: kunmap_atomic() unmaps virtual address, not page
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-05 10:31:23 +00:00
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
e9c091b474 [MMC] mmci: add data cache coherency
Since MMCI currently uses PIO to read data, we have to take steps
to ensure data cache coherency on aliasing CPU caches.  Add the
necessary flush_dcache_page() calls.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-04 16:24:05 +00:00
Dmitry Torokhov
21500bb32a [MMC] wbsd: convert to the new platfrom device interface
platform_device_register_simple() is going away, switch to
using platfrom_device_alloc() + platform_device_add(). Also
make sure that wbsd_driver gets unregistered when wbsd_init
fails.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
2006-01-03 22:57:35 +00:00
Dmitry Torokhov
63648fb5c0 [MMC] wbsd: make use of ARRAY_SIZE() macro
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
2006-01-03 22:56:56 +00:00
Russell King
a6f6c96b65 [MMC] Improve MMC card block size selection
Select a block size for IO based on the read and write block size
combinations, and whether the card supports partial block reads
and/or partial block writes.

If we are able to satisfy block reads but not block writes, mark
the device read only.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-03 22:38:44 +00:00
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
Russell King
d366b64363 [MMC] Add mmc_hostname() macro
mmc_hostname() returns a pointer to the hostname for the mmc_host.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-19 09:40:08 +01:00
Pierre Ossman
3462b92541 [PATCH] wbsd version bump
Even though the changes are minor for the next release an increasing
version number simplifies my support issues.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-10 11:08:56 -07:00
Jesper Juhl
77933d7276 [PATCH] clean up inline static vs static inline
`gcc -W' likes to complain if the static keyword is not at the beginning of
the declaration.  This patch fixes all remaining occurrences of "inline
static" up with "static inline" in the entire kernel tree (140 occurrences in
47 files).

While making this change I came across a few lines with trailing whitespace
that I also fixed up, I have also added or removed a blank line or two here
and there, but there are no functional changes in the patch.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:26:20 -07:00
Adrian Bunk
3eee0d03e3 [PATCH] MMC: wbsd cleanups
This patch contains the following possible cleanups:
- make some needlessly global code static
- remove the unneeded global function DBG_REG

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-01 13:07:37 +01:00
Pierre Ossman
6e6293dd3d [PATCH] MMC: wbsd delayed insertion
Wait 0.5 seconds before scanning for cards after an insertion interrupt.
The electrical connection needs this time to stabilise for some cards.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-01 12:13:55 +01:00
Russell King
7b09cdac5a [PATCH] MMC: Fix divdi3 reference in mmci.c
Use do_div() instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-01 12:02:59 +01:00
Yani Ioannou
e404e274f6 [PATCH] Driver Core: drivers/i2c/chips/w83781d.c - drivers/s390/block/dcssblk.c: update device attribute callbacks
Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20 15:15:34 -07:00
Pierre Ossman
912490db69 [PATCH] MMC: Proper MMC command classes support
Defines for the different command classes as defined in the MMC and SD
specifications.

Removes the check for high command classes and instead checks that the
command classes needed are present.
Previous solution killed forward compatibility at no apparent gain.

Signed-of-by: Pierre Ossman
2005-05-21 10:27:02 +01:00
Pierre Ossman
85bcc13072 [PATCH] MMC: wbsd update
Updates to the wbsd driver.
                                                                                
* Fix to handle DAT3 card detection.
* Fixed bug which could cause large writes to stall in FIFO mode.
* Plug 'n Play support. In most cases you need ACPI PNP for this to work.
* Uses generic DMA API (ISA dependency removed).
2005-05-08 19:35:27 +01:00
Al Viro
a553260618 [PATCH] ISA DMA Kconfig fixes - part 3
Drivers that expect ISA DMA API are marked as such in Kconfig.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-04 07:33:14 -07:00
Pavel Machek
e5378ca8c0 [PATCH] fix u32 vs. pm_message_t in drivers/mmc,mtd,scsi
This fixes u32 vs.  pm_message_t in drivers/mmc, drivers/mtd and
drivers/scsi.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:25:29 -07:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00