Alexey Brodkin 5959b32e36 mmc: dw_mmc: handle data blocks > than 4kB if IDMAC is used ... As per DW MobileStorage databook "each descriptor can transfer up to 4kB of data in chained mode", moreover buffer size that is put in "des1" is limited to 13 bits, i.e. for example on attempt to IDMAC_SET_BUFFER1_SIZE(desc, 8192) size value that's effectively written will be 0. On the platform with 8kB PAGE_SIZE I see dw_mmc gets data blocks in SG-list of 8kB size and that leads to unpredictable behavior of the SD/MMC controller. In particular on write to FAT partition of SD-card the controller will stuck in the middle of DMA transaction. Solution to the problem is simple - we need to pass large (> 4kB) data buffers to the controller via multiple descriptors. And that's what that change does. What's interesting I did try original driver on same platform but configured with 4kB PAGE_SIZE and may confirm that data blocks passed in SG-list to dw_mmc never exeed 4kB limit - that explains why nobody ever faced a problem I did. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Seungwon Jeon <tgih.jun@samsung.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: arc-linux-dev@synopsys.com Cc: linux-kernel@vger.kernel.org Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>		2015-08-17 11:34:08 +02:00
..
accessibility
acpi	ACPI / PM: Use target_state to set the device power state	2015-07-28 16:29:08 +02:00
amba
android
ata	Merge branch 'for-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2015-07-24 16:54:59 -07:00
atm
auxdisplay
base	regmap: Fix handling of present bits on rbtree cache block resize	2015-08-12 09:06:39 -07:00
bcma
block	zram: fix pool name truncation	2015-08-14 15:56:32 -07:00
bluetooth	Bluetooth: btbcm: allow btbcm_read_verbose_config to fail on Apple	2015-07-14 22:54:55 +02:00
bus	ARM: SoC: driver updates for v4.2	2015-06-26 11:54:29 -07:00
cdrom
char	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2015-08-03 10:53:58 -07:00
clk	A one-liner for a regression found in the PXA clock driver.	2015-08-14 16:10:04 -07:00
clocksource	clockevents/drivers/sh_cmt: Only perform clocksource suspend/resume if enabled	2015-08-08 10:50:08 +02:00
connector
cpufreq	CPUFREQ: Loongson2: Fix broken build due to incorrect include.	2015-08-03 09:24:59 +02:00
cpuidle	suspend-to-idle: Prevent RCU from complaining about tick_freeze()	2015-07-09 22:59:49 +02:00
crypto	crypto: ixp4xx - Remove bogus BUG_ON on scattered dst buffer	2015-07-23 18:09:18 +08:00
dca
devfreq
dio
dma	dmaengine fixes for 4.2-rc5	2015-08-01 12:47:04 -07:00
dma-buf
edac	EDAC, ppc4xx: Access mci->csrows array elements properly	2015-08-13 06:02:19 +02:00
eisa
extcon	extcon: Fix extcon_cable_get_state() from getting old state after notification	2015-07-31 15:18:41 +09:00
firewire
firmware	efi: Check for NULL efi kernel parameters	2015-07-30 18:07:11 +01:00
fmc
gpio	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-18 10:27:12 -07:00
gpu	Revert "drm/nouveau/fifo/gk104: kick channels when deactivating them"	2015-08-14 09:50:37 +10:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2015-08-10 15:16:48 -07:00
hsi	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
hv
hwmon	hwmon: (g762) Export OF module alias information	2015-08-05 08:31:59 -07:00
hwspinlock	hwspinlock: qcom: Correct msb in regmap_field	2015-07-01 16:15:05 +03:00
hwtracing/coresight
i2c	i2c: fix leaked device refcount on of_find_i2c_* error path	2015-08-01 12:11:58 +02:00
ide	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
idle
iio	iio:light:stk3310: make endianness independent of host	2015-07-19 14:54:45 +01:00
infiniband	Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-29 09:54:40 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-08-09 09:38:42 +02:00
iommu	iommu/amd: Allow non-ATS devices in IOMMUv2 domains	2015-07-31 15:15:41 +02:00
ipack
irqchip	MIPS: SMP: Don't increment irq_count multiple times for call function IPIs	2015-08-03 09:25:12 +02:00
isdn	isdn/gigaset: drop unused ldisc methods	2015-07-15 17:24:45 -07:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
lguest	Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 17:59:09 -07:00
macintosh	macintosh/ans-lcd: fix build failure after module_init/exit relocation	2015-07-23 20:00:35 +10:00
mailbox	Replace module_init with appropriate alternate initcall in non modules.	2015-07-02 10:36:29 -07:00
mcb
md	dm cache policy smq: move 'dm-cache-default' module alias to SMQ	2015-08-12 11:27:29 -04:00
media	x86/mm/pat, drivers/media/ivtv: Move the PAT warning and replace WARN() with pr_warn()	2015-07-21 09:42:54 +02:00
memory	memory: omap-gpmc: Don't try to save uninitialized GPMC context	2015-08-12 01:43:49 -07:00
memstick	memstick: remove deprecated use of pci api	2015-06-30 19:44:57 -07:00
message
mfd	- Fix dependency issues on ChromeOS platforms	2015-08-10 10:48:11 -07:00
misc	Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2015-08-03 14:51:30 -07:00
mmc	mmc: dw_mmc: handle data blocks > than 4kB if IDMAC is used	2015-08-17 11:34:08 +02:00
mtd	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-08-13 10:46:39 -07:00
nfc	Char/Misc driver patches for 4.2-rc1	2015-06-26 14:51:15 -07:00
ntb	ntb: avoid format string in dev_set_name	2015-08-09 16:32:22 -04:00
nubus
nvdimm	libnvdimm: fix namespace seed creation	2015-07-25 09:57:56 -07:00
of	of: Drop owner assignment from platform and i2c driver	2015-07-27 08:24:39 -05:00
oprofile
parisc
parport	parport: Revert "parport: fix memory leak"	2015-07-25 12:48:05 -07:00
pci	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
pcmcia	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
phy	phy: ti-pipe3: i783 workaround for SATA lockup after dpll unlock/relock	2015-08-01 15:52:58 +05:30
pinctrl	Pin control fixes for the v4.2 series:	2015-07-21 15:27:27 -07:00
platform	- Fix dependency issues on ChromeOS platforms	2015-08-10 10:48:11 -07:00
pnp	ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage	2015-07-06 23:52:21 +02:00
power	Replace module_platform_driver with builtin_platform driver in non modules.	2015-07-02 10:42:13 -07:00
powercap
pps
ps3
ptp
pwm	pwm: Changes for v4.2-rc1	2015-06-23 13:32:38 -07:00
rapidio	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2015-06-23 14:08:54 -07:00
ras
regulator	Merge remote-tracking branches 'regulator/fix/88pm800', 'regulator/fix/max8973', 'regulator/fix/s2mps11' and 'regulator/fix/supply' into regulator-linus	2015-07-24 16:19:25 +01:00
remoteproc	remoteproc: fix !CONFIG_OF build breakage	2015-06-18 11:44:41 +03:00
reset
rpmsg
rtc	rtc: armada38x: Remove unused variable from armada38x_rtc_set_time()	2015-07-18 00:42:31 +02:00
s390	virtio/vhost: fixes for 4.2	2015-07-23 13:07:04 -07:00
sbus
scsi	SCSI fixes on 20150814	2015-08-15 13:54:53 -07:00
sfi
sh	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
sn
soc	ARM: SoC: late fixes and dependencies	2015-07-02 14:40:49 -07:00
spi	Merge remote-tracking branches 'spi/fix/gqspi', 'spi/fix/imx', 'spi/fix/mg-spfi' and 'spi/fix/spidev' into spi-linus	2015-07-24 16:19:50 +01:00
spmi
ssb
staging	staging: lustre: Include unaligned.h instead of access_ok.h	2015-08-04 22:13:25 -07:00
target	iscsi-target: Fix iser explicit logout TX kthread leak	2015-07-24 14:19:44 -07:00
tc
thermal	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into for-rc	2015-08-03 23:11:25 +08:00
thunderbolt
tty	tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection()	2015-07-23 18:08:29 -07:00
uio
usb	drivers/usb: Delete XHCI command timer if necessary	2015-08-03 14:41:48 -07:00
uwb
vfio	vfio: Fix lockdep issue	2015-07-24 15:14:04 -06:00
vhost	vhost: fix error handling for memory region alloc	2015-07-27 18:05:05 +03:00
video	fbcon: unconditionally initialize cursor blink interval	2015-08-10 17:20:32 +03:00
virt
virtio	virtio-input: reset device and detach unused during remove	2015-08-06 10:40:35 +03:00
vlynq
vme
w1
watchdog	Update Viresh Kumar's email address	2015-07-17 16:39:53 -07:00
xen	xen: bug fixes for 4.2-rc6	2015-08-13 13:36:22 -07:00
zorro
Kconfig	libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support	2015-06-24 21:24:10 -04:00
Makefile	The libnvdimm sub-system introduces, in addition to the libnvdimm-core,	2015-06-29 10:34:42 -07:00