Commit Graph

20 Commits

Author SHA1 Message Date
Eric Bénard a7d403cfd1 mxcmmc: convert to pm_ops and enable/disable clock
Signed-off-by: Eric Bénard <eric@eukrea.com>
Cc: s.hauer@pengutronix.de
Cc: linux-mmc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-07-26 14:29:21 +02:00
Uwe Kleine-König 2dcf78c0ee Merge branch 'imx/for-2.6.36' of git://git.pengutronix.de/git/ukl/linux-2.6 into HEAD
There are some more conflicts than detected by git, namely support for
the newly added cpuimx machines needed to be converted to dynamic device
registration.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Conflicts:
	arch/arm/mach-imx/Makefile
	arch/arm/mach-imx/devices.c
	arch/arm/mach-imx/devices.h
	arch/arm/mach-imx/eukrea_mbimx27-baseboard.c
	arch/arm/mach-mx2/Kconfig
	arch/arm/mach-mx25/Makefile
	arch/arm/mach-mx25/devices.c
	arch/arm/plat-mxc/include/mach/mx25.h
	arch/arm/plat-mxc/include/mach/mxc_nand.h
2010-07-26 14:27:25 +02:00
Eric Bénard 16b3bf8c85 mxcmmc: add card detect through DAT3 possibility
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-07-26 14:17:46 +02:00
Matt Fleming 1a13f8fa76 mmc: remove the "state" argument to mmc_suspend_host()
Even though many mmc host drivers pass a pm_message_t argument to
mmc_suspend_host() that argument isn't used the by MMC core.  As host
drivers are converted to dev_pm_ops they'll have to construct
pm_message_t's (as they won't be passed by the PM subsystem any more) just
to appease the mmc suspend interface.

We might as well just delete the unused paramter.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>ZZ
Acked-by: Sascha Sommer <saschasommer@freenet.de>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Daniel Mack 4a31f2eff3 ARM: mx3: Fix a race condition in mxcmmc
From cefcdab08d1c9636c4a7290bc2bbe937d051bce4 Mon Sep 17 00:00:00 2001
From: Volker Ernst <volker.ernst@txtr.com>
Date: Mon, 26 Apr 2010 22:51:07 +0200
Subject: [PATCH] ARM: mx3: Fix a race condition in mxcmmc

This fixes a race condition regarding interrupt bits in the SDHC
controller driver code.

In case of PIO-transfer it does not clear SDHC-status bit#11/12
in the INT-handler anymore. INT-handler might be called during
an ongoing PIO-data-transfer (with some other INT-flag set) and
PIO-transfer depends on these bits being set to detect the end
of the data-transfer. This also means that at the end of PIO-
transfer that PIO-software has to clear these bits itself.

However in case of DMA-transfer these bits have to be cleared
in the INT-handler, because they are used to generate INTs then.

Works solid, no more problems here, can transfer big files.

Signed-off-by: Volker Ernst <volker.ernst@txtr.com>
Acked-by: Daniel Mack <daniel@caiaq.de>
Cc: Andy Green <andy@warmcat.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-05-17 11:44:13 +02:00
Daniel Mack 3fcb027d7f ARM: MXC: mxcmmc: work around a bug in the SDHC busy line handling
MX3 SoCs have a silicon bug which corrupts CRC calculation of
multi-block transfers when connected SDIO peripheral doesn't drive the
BUSY line as required by the specs.

One way to prevent this is to only allow 1-bit transfers.

Another way is playing tricks with the DMA engine, but this isn't
mainline yet. So for now, we live with the performance drawback of 1-bit
transfers until a nicer solution is found.

This patch introduces a new host controller callback 'init_card' which
is for now only called from mmc_sdio_init_card().

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Volker Ernst <volker.ernst@txtr.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Michał Mirosław <mirqus@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-04-14 09:18:07 +02:00
Daniel Mack f441b99310 ARM: MXC: mxcmmc: Teach the driver SDIO operations
Successfully tested on MX31 hardware using libertas SDIO peripherals.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Volker Ernst <volker.ernst@txtr.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Michał Mirosław <mirqus@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-04-14 09:18:07 +02:00
Daniel Mack 4725f6f176 ARM: MXC: mxcmmc: misc cleanups
Be more verbose on error messages and add one debug message.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Volker Ernst <volker.ernst@txtr.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Michał Mirosław <mirqus@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-04-14 09:18:06 +02:00
Linus Torvalds c32da02342 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits)
  doc: fix typo in comment explaining rb_tree usage
  Remove fs/ntfs/ChangeLog
  doc: fix console doc typo
  doc: cpuset: Update the cpuset flag file
  Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed
  Remove drivers/parport/ChangeLog
  Remove drivers/char/ChangeLog
  doc: typo - Table 1-2 should refer to "status", not "statm"
  tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments
  No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h
  devres/irq: Fix devm_irq_match comment
  Remove reference to kthread_create_on_cpu
  tree-wide: Assorted spelling fixes
  tree-wide: fix 'lenght' typo in comments and code
  drm/kms: fix spelling in error message
  doc: capitalization and other minor fixes in pnp doc
  devres: typo fix s/dev/devm/
  Remove redundant trailing semicolons from macros
  fix typo "definetly" -> "definitely" in comment
  tree-wide: s/widht/width/g typo in comments
  ...

Fix trivial conflict in Documentation/laptops/00-INDEX
2010-03-12 16:04:50 -08:00
Vladimir Zapolskiy d759c3745e mxcmmc: fixed max_seg_size value on initialization
This unpleasant typo appeared while porting the driver from Freescale
original sources, where anyone can easily find the correct version.

Current incorrect version potentially can influence segment and merge
handling in block subsystem via MMC request queue settings.

Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-12 15:52:44 -08:00
Daniel Mack 3ad2f3fbb9 tree-wide: Assorted spelling fixes
In particular, several occurances of funny versions of 'success',
'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address',
'beginning', 'desirable', 'separate' and 'necessary' are fixed.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Joe Perches <joe@perches.com>
Cc: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-09 11:13:56 +01:00
Uwe Kleine-König c0521baf0d mxcmmc: fix error path in mxcmci_probe
After a failing allocation of mmc or a failed ioremap in mxcmci_probe host was
used uninitialized.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Martin Fuzzey <mfuzzey@gmail.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:34 -08:00
Anand Gadiyar fd589a8f0a trivial: fix typo "to to" in multiple files
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-21 15:14:55 +02:00
Pierre Ossman 99d9260c30 mxcmmc: remove frequency workaround
The MMC core has now been fixed to not send silly frequencies to the
drivers which means we can remove this workaround.

Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-13 22:42:59 +02:00
Martin Fuzzey 656217d284 mxcmmc: Fix missing return value checking in DMA setup code.
Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
2009-06-03 21:48:25 +02:00
Martin Fuzzey 18489fa2ba mxcmmc : Reset the SDHC hardware if software timeout occurs.
When a software timeout occurs in polling mode hardware was left in
an indeterminate state causing subsequent operations to block.

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
2009-06-03 21:48:17 +02:00
Sascha Hauer c499b0672f mxcmmc: decrease minimum frequency to make MMC cards work
This is a temporary workaround until the MMC stack can be fixed.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-03 21:40:04 +02:00
Sascha Hauer 9563b1dbb6 MX2/MX3 SDHC driver: rename platform driver
Rename driver from imx-mmc to mxc-mmc to avoid conflicts with the
mx1 mmc driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13 10:34:35 +01:00
Sascha Hauer 06277b5c40 mxcmmc: Do not pass clock name, we have only one clock for this device
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13 10:34:34 +01:00
Sascha Hauer d96be879ff mmc: Add a MX2/MX3 specific SDHC driver
This patch adds a MX2/MX3 specific SDHC driver. The hardware is basically
the same as in the MX1, but unlike the MX1 controller the MX2
controller just works as expected. Since the MX1 driver has more
workarounds for bugs than anything else I had no success with supporting
MX1 and MX2 in a sane way in one driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2009-02-02 20:57:05 +01:00