10 Sep, 2010
1 commit
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The introduction of support for SD combo cards breaks the initialization
of all CSR SDIO chips. The GO_IDLE (CMD0) in mmc_sd_get_cid() causes CSR
chips to be reset (this is non-standard behavior).When initializing an SDIO card check for a combo card by using the memory
present bit in the R4 response to IO_SEND_OP_COND (CMD5). This avoids the
call to mmc_sd_get_cid() on an SDIO-only card.Signed-off-by: David Vrabel
Acked-by: Michal Mirolaw
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Aug, 2010
1 commit
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SD/MMC cards tend to support an erase operation. In addition, eMMC v4.4
cards can support secure erase, trim and secure trim operations that are
all variants of the basic erase command.SD/MMC device attributes "erase_size" and "preferred_erase_size" have been
added."erase_size" is the minimum size, in bytes, of an erase operation. For
MMC, "erase_size" is the erase group size reported by the card. Note that
"erase_size" does not apply to trim or secure trim operations where the
minimum size is always one 512 byte sector. For SD, "erase_size" is 512
if the card is block-addressed, 0 otherwise.SD/MMC cards can erase an arbitrarily large area up to and
including the whole card. When erasing a large area it may
be desirable to do it in smaller chunks for three reasons:1. A single erase command will make all other I/O on the card
wait. This is not a problem if the whole card is being erased, but
erasing one partition will make I/O for another partition on the
same card wait for the duration of the erase - which could be a
several minutes.2. To be able to inform the user of erase progress.
3. The erase timeout becomes too large to be very useful.
Because the erase timeout contains a margin which is multiplied by
the size of the erase area, the value can end up being several
minutes for large areas."erase_size" is not the most efficient unit to erase (especially for SD
where it is just one sector), hence "preferred_erase_size" provides a good
chunk size for erasing large areas.For MMC, "preferred_erase_size" is the high-capacity erase size if a card
specifies one, otherwise it is based on the capacity of the card.For SD, "preferred_erase_size" is the allocation unit size specified by
the card."preferred_erase_size" is in bytes.
Signed-off-by: Adrian Hunter
Acked-by: Jens Axboe
Cc: Kyungmin Park
Cc: Madhusudhan Chikkature
Cc: Christoph Hellwig
Cc: Ben Gardiner
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Aug, 2010
4 commits
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There are some chips (like TI WL12xx series) that can be interfaced over
SDIO but don't support the SDIO specification, meaning that they are
missing CIA (Common I/O Area) with all it's registers. Current Linux SDIO
implementation relies on those registers to identify and configure the
card, so non-standard cards can not function and cause lots of warnings
from the core when it reads invalid data from non-existent registers.After this patch, init_card() host callback can now set new quirk
MMC_QUIRK_NONSTD_SDIO, which means that SDIO core should not try to access
any standard SDIO registers and rely on init_card() to fill all SDIO
structures instead. As those cards are usually embedded chips, all the
required information can be obtained from machine board files by the host
driver when it's called through init_card() callback.Signed-off-by: Grazvydas Ignotas
Cc: Adrian Hunter
Cc: Tony Lindgren
Cc: Bob Copeland
Cc: Kalle Valo
Cc: Madhusudhan Chikkature
Cc: Kishore Kadiyala
Cc: Russell King
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If you don't use CONFIG_MMC_UNSAFE_RESUME, as soon as you attempt to
suspend, the card will be removed, therefore this patch doesn't change the
behavior of this option.However the removal will be done by pm notifier, which runs while
userspace is still not frozen and thus can freely use del_gendisk, without
the risk of deadlock which would happen otherwise.Card detect workqueue is now disabled while userspace is frozen, Therefore
if you do use CONFIG_MMC_UNSAFE_RESUME, and remove the card during
suspend, the removal will be detected as soon as userspace is unfrozen,
again at the moment it is safe to call del_gendisk.Tested with and without CONFIG_MMC_UNSAFE_RESUME with suspend and hibernate.
[akpm@linux-foundation.org: clean up function prototype]
[akpm@linux-foundation.org: fix CONFIG_PM-n linkage, small cleanups]
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Maxim Levitsky
Cc: David Brownell
Cc: Alan Stern
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michal Miroslaw
Cc: Adrian Hunter
Cc: Chris Ball
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The eMMC spec 4.4 and 4.3 + additional feature chips has CSD structure
version 3 and version 3 have to check the CSD_STRUCTURE byte in the
EXT_CSD register.Also fix EXT_CSD revision message.
[akpm@linux-foundation.org: fix comment, per Chris Ball]
Signed-off-by: Kyungmin Park
Cc: Adrian Hunter
Cc: Chris Ball
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
31 May, 2010
2 commits
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This patch adds a set of MMCIF functions for the romImage
boot loader that allows the kernel to be booted directly
from an MMC card.Thanks to Jeremy Baker for the initial prototype.
Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt -
Update the MMCIF driver to include register information
and register access functions in the header file.
The MMCIF boot code builds on top of this.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt
28 May, 2010
4 commits
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Add a glue layer to support the sdhci driver on the ST SPEAr platform.
Signed-off-by: Viresh Kumar
Cc:
Cc: Linus Walleij
Cc: Russell King
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
SDIO specification allows RAW (Read after Write) operation using
IO_RW_DIRECT command (CMD52) by setting the RAW bit. This operation is
similar to ordinary read/write commands, except that both write and read
are performed using single command/response pair. The Linux SDIO layer
already supports this internaly, only external function is missing for
drivers to make use, which is added by this patch.This type of command is required to implement proper power save mode
support in wl1251 wifi driver.Android has similar patch for G1 in it's tree for the same reason:
http://android.git.kernel.org/?p=kernel/common.git;a=commitdiff;h=74a47786f6ecbe6c1cf9fb15efe6a968451deb52
Signed-off-by: Grazvydas Ignotas
Acked-by: Kalle Valo
Cc: Dmitry Shmidt
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
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
Acked-by: Anton Vorontsov
Acked-by: Michal Miroslaw ZZ
Acked-by: Sascha Sommer
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
MMCIF is the MMC Host Interface in SuperH.
Signed-off-by: Yusuke Goda
Cc: Ben Hutchings
Cc: Paul Mundt
Cc: Magnus Damm
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 May, 2010
1 commit
-
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits)
ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900
ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
ARM: 6140/1: silence a bogus sparse warning in unwind.c
ARM: mach-at91: duplicated include
ARM: arch/arm/nwfpe/fpsr.h: Checkpatch cleanup
ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup
ARM: arch/arm/nwfpe/ChangeLog: Checkpatch cleanup
ARM: arch/arm/mach-sa1100/leds.c: Checkpatch cleanup
ARM: arch/arm/mach-h720x/common.h: Checkpatch cleanup
ARM: arch/arm/mach-footbridge/ebsa285-pci.c: Checkpatch cleanup
ARM: arch/arm/mach-clps711x/Makefile.boot: Checkpatch cleanup
ARM: arch/arm/boot/bootp/bootp.lds: Checkpatch cleanup
ARM: SPEAR6xx: remove duplicated #include
ARM: s3c6400_defconfig: Add NAND driver
ARM: s3c6400_defconfig: enable sound as modules
ARM: s3c6400_defconfig: enable power management
ARM: s5pv210_defconfig: Update s5pv210_defconfig to v2.6.34
ARM: s5pc110_defconfig: Update s5pc110_defconfig to v2.6.34
ARM: s5p6442_defconfig: Update s5p6442_defconfig to v2.6.34
ARM: s5p6440_defconfig: Update s5p6440_defconfig to v2.6.34
...
16 Apr, 2010
1 commit
-
…wireless-next-2.6 into for-davem
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/net/wireless/ath/ath5k/phy.c
drivers/net/wireless/wl12xx/wl1271_main.c
14 Apr, 2010
1 commit
-
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
Cc: Sascha Hauer
Cc: Dan Williams
Cc: Volker Ernst
Cc: Jiri Kosina
Cc: Michał Mirosław
Signed-off-by: Sascha Hauer
07 Apr, 2010
1 commit
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When operating in 1-bit mode, SDAT1 is used as dedicated interrupt line.
However, the 8686 will only drive this line when the ECSI bit is set in
the CCCR_IF register.Thanks to Alagu Sankar for pointing me in the right direction.
Signed-off-by: Daniel Mack
Cc: Alagu Sankar
Cc: Volker Ernst
Cc: Dan Williams
Cc: John W. Linville
Cc: Holger Schurig
Cc: Bing Zhao
Cc: libertas-dev@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Acked-by: Dan Williams
Signed-off-by: John W. Linville
25 Mar, 2010
1 commit
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In the extended CSD register the CARD_TYPE is an 8-bit value of which the
upper 6 bits were reserved in JEDEC specifications prior to version 4.4.
In version 4.4 two of the reserved bits were designated for identifying
support for the newly added High-Speed Dual Data Rate. Unfortunately the
mmc_read_ext_csd() function required that the reserved bits be zero
instead of ignoring them as it should.This patch makes mmc_read_ext_csd() ignore the CARD_TYPE bits that are
reserved or not yet supported. It also stops the function jumping to the
end as though an error occurred, when it is only warns that the CARD_TYPE
bits (that it does interpret) are invalid.Signed-off-by: Adrian Hunter
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Mar, 2010
3 commits
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And bring them back to 4-bit mode during resume.
Signed-off-by: Daniel Drake
Signed-off-by: Nicolas Pitre
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch series provides the core changes needed to allow SDIO cards to
remain powered and active while the host system is suspended, and let them
wake up the host system when needed. This is used to implement
wake-on-lan with SDIO wireless cards at the moment. Patches to add that
support to the libertas driver will be posted separately.This patch:
Some SDIO cards have the ability to keep on running autonomously when the
host system is suspended, and wake it up when needed. This however
requires that the host controller preserve power to the card, and
configure itself appropriately for wake-up.There is however 4 layers of abstractions involved: the host controller
driver, the MMC core code, the SDIO card management code, and the actual
SDIO function driver. To make things simple and manageable, host drivers
must advertise their PM capabilities with a feature bitmask, then function
drivers can query and set those features from their suspend method. Then
each layer in the suspend call chain is expected to act upon those bits
accordingly.[akpm@linux-foundation.org: fix typo in comment]
Signed-off-by: Nicolas Pitre
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some SDIO cards expect byte transfers not to exceed the configured block
transfer size. Add a quirk to that effect.Patches to make use of this quirk will be sent separately.
Signed-off-by: Bing Zhao
Signed-off-by: Nicolas Pitre
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
19 Nov, 2009
1 commit
-
Conflicts:
drivers/net/sfc/sfe4001.c
drivers/net/wireless/libertas/cmd.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/rtl8187se/Kconfig
drivers/staging/rtl8192e/Kconfig
19 Oct, 2009
1 commit
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Different sdio device IDs are designated to support different intel
wimax silicon sku. The new macro SDIO_DEVICE_ID_IWMC3200_WIMAX_2G5(0x1407)
is added to support iwmc3200 2.5GHz sku. The existing
SDIO_DEVICE_ID_IWMC3200_WIMAX(0x1402) is for iwmc3200 general sku.Signed-off-by: Cindy H Kao
Signed-off-by: Inaky Perez-Gonzalez
12 Oct, 2009
1 commit
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After m68k's task_thread_info() doesn't refer to current,
it's possible to remove sched.h from interrupt.h and not break m68k!
Many thanks to Heiko Carstens for allowing this.Signed-off-by: Alexey Dobriyan
23 Sep, 2009
9 commits
-
Especially with the PM framework, those are quite handy to have in driver
code too.Signed-off-by: Nicolas Pitre
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Normally writes to SDIO function 0 outside the vendor specific CCCR
registers are prohibited.To support embedded devices that require writes to SDIO function 0 outside
this range (e.g. TI WL127x embedded sdio wifi device),
MMC_QUIRK_LENIENT_FN0 is introduced.A card quirks field is added to `struct mmc_card' to support non-standard
devices (e.g. embedded sdio devices).[akpm@linux-foundation.org: code in C, not cpp!]
Signed-off-by: Ohad Ben-Cohen
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support to disconnect the pull-up resistor on CD/DAT[3] (pin 1)
of the card. This may be desired on certain setups of boards,
controllers and embedded sdio devices which do not need the card's
pull-up. As a result, card detection is disabled and power is saved.[akpm@linux-foundation.org: simplify sdio_disable_cd() a bit]
Signed-off-by: Ohad Ben-Cohen
Acked-by: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Philip Langdale
Cc: Pierre Ossman
Cc: David Vrabel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
According to the standard, the SWITCH command should be followed by a
SEND_STATUS command to check for errors.Signed-off-by: Adrian Hunter
Acked-by: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Jarkko Lavinen
Cc: Denis Karpov
Cc: Pierre Ossman
Cc: Philip Langdale
Cc: "Madhusudhan"
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support for the new MMC command SLEEP_AWAKE.
Signed-off-by: Jarkko Lavinen
Signed-off-by: Adrian Hunter
Acked-by: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Jarkko Lavinen
Cc: Denis Karpov
Cc: Pierre Ossman
Cc: Philip Langdale
Cc: "Madhusudhan"
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Power can be saved by powering off cards that are not in use. This is
similar to suspend / resume except it is under the control of the driver,
and does not require any power management support. It can only be used
when the driver can monitor whether the card is removed, otherwise it is
unsafe. This is possible because, unlike suspend, the driver still
receives card detect and / or cover switch interrupts.Signed-off-by: Adrian Hunter
Acked-by: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Jarkko Lavinen
Cc: Denis Karpov
Cc: Pierre Ossman
Cc: Philip Langdale
Cc: "Madhusudhan"
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
eMMC's are not removable, so unsafe resume is OK always.
To permit this a new host capability MMC_CAP_NONREMOVABLE has been added
and suspend / resume updated accordingly.Signed-off-by: Adrian Hunter
Acked-by: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Jarkko Lavinen
Cc: Denis Karpov
Cc: Pierre Ossman
Cc: Philip Langdale
Cc: "Madhusudhan"
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This change allows the MMC host to be claimed in situations where the host
may or may not have already been claimed. Also 'mmc_try_claim_host()' is
now exported.Signed-off-by: Adrian Hunter
Acked-by: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Jarkko Lavinen
Cc: Denis Karpov
Cc: Pierre Ossman
Cc: Philip Langdale
Cc: "Madhusudhan"
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
MMC hosts that support power saving can use the 'enable' and 'disable'
methods to exit and enter power saving states. An explanation of their
use is provided in the comments added to include/linux/mmc/host.h.Signed-off-by: Adrian Hunter
Acked-by: Matt Fleming
Cc: Ian Molton
Cc: "Roberto A. Foglietta"
Cc: Jarkko Lavinen
Cc: Denis Karpov
Cc: Pierre Ossman
Cc: Philip Langdale
Cc: "Madhusudhan"
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Jul, 2009
1 commit
-
1. add intel's sdio vendor id to sdio_ids.h
2. move iwmc3200 sdio devices' ids to sdio_ids.hSigned-off-by: Tomas Winkler
Signed-off-by: David S. Miller
17 Jun, 2009
1 commit
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sdio: add cards id for sms (Siano Mobile Silicon) MDTV receivers
Add SDIO vendor ID, and multiple device IDs for
various SMS-based MDTV SDIO adapters.Signed-off-by: Uri Shkolnik
Signed-off-by: Mauro Carvalho Chehab
23 Apr, 2009
1 commit
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libertas: add support for Marvell SD8688 chip
Use RxPD->pkt_ptr to locate eth803 header in the packet
received since SD8688/v10 firmware allows a gap between
RxPD and eth803 header.Set SDIO block size to 256 for CMD53.
The maximum block size for SD8688 WLAN function is set
to 512 in TPLFE_MAX_BLK_SIZE. But using 512 as block size
results upto 2K bytes data (4 blocks) being transferred
and causes buffer overflow in firmware.Both changes above are backward compatible with earlier
firmware versions for SD8385/SD8686.The SDIO_DEVICE_IDs for SD8688 chip are added in
include/linux/mmc/sdio_ids.hSigned-off-by: Kiran Divekar
Signed-off-by: Bing Zhao
Acked-by: Dan Williams
Signed-off-by: John W. Linville
31 Mar, 2009
1 commit
-
Glue between MMC and regulator stacks ... verified with
some OMAP3 boards using adjustable and configured-as-fixed
regulators on several MMC controllers.These calls are intended to be used by MMC host adapters
using at least one regulator per host. Examples include
slots with regulators supporting multiple voltages and
ones using multiple voltage rails (e.g. DAT4..DAT7 using a
separate supply, or a split rail chip like certain SDIO
WLAN or eMMC solutions).Signed-off-by: David Brownell
Acked-by: Pierre Ossman
Signed-off-by: Liam Girdwood
01 Jan, 2009
2 commits
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This function sets the OCR mask bits according to provided voltage
ranges. Will be used by the mmc_spi OpenFirmware bindings.Signed-off-by: Anton Vorontsov
Signed-off-by: Pierre Ossman -
Signed-off-by: Jarkko Lavinen
Signed-off-by: Pierre Ossman
09 Nov, 2008
1 commit
-
Acked-by: Greg Kroah-Hartman
Signed-Off-By: Kay Sievers
Signed-off-by: Pierre Ossman
12 Oct, 2008
1 commit
-
In include/linux/mmc/host.h, it is mentionned that the callback to
know if a card is present or not is get_ro(). But it's get_cd().Signed-off-by: Thomas Petazzoni
Signed-off-by: Pierre Ossman
