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linux/arch/arm/mach-pxa
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Sergei Ianovich ff88b4724f ARM: pxa: prevent PXA270 occasional reboot freezes 
Erratum 71 of PXA270M Processor Family Specification Update
(April 19, 2010) explains that watchdog reset time is just
8us insead of 10ms in EMTS.

If SDRAM is not reset, it causes memory bus congestion and
the device hangs. We put SDRAM in selfresh mode before watchdog
reset, removing potential freezes.

Without this patch PXA270-based ICP DAS LP-8x4x hangs after up to 40
reboots. With this patch it has successfully rebooted 500 times.

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11 16:35:16 -08:00
..
include/mach ARM: pxa: delete the custom GPIO header 2013-09-27 14:01:09 +02:00
am200epd.c ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
am300epd.c ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
balloon3.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
capc7117.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
clock-pxa2xx.c
clock-pxa3xx.c ARM: pxa: support CKENC in clk_enable 2012-08-16 16:15:44 +08:00
clock.c
clock.h ARM: pxa: remove pxa95x support 2012-11-15 13:50:13 +01:00
cm-x2xx-pci.c
cm-x2xx-pci.h
cm-x2xx.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
cm-x255.c
cm-x270.c ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
cm-x300.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
colibri-evalboard.c ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
colibri-pxa3xx.c ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
colibri-pxa270-income.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
colibri-pxa270.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
colibri-pxa300.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
colibri-pxa320.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
corgi_pm.c ARM: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
corgi.c reboot: arm: change reboot_mode to use enum reboot_mode 2013-07-09 10:33:29 -07:00
csb701.c
csb726.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
devices.c ARM: pxa: remove cpu_is_xxx in gpio driver 2013-04-11 09:59:23 +08:00
devices.h ARM: pxa: remove cpu_is_xxx in gpio driver 2013-04-11 09:59:23 +08:00
em-x270.c gpio: (gpio-pca953x) move header to linux/platform_data/ 2013-08-29 12:33:52 -07:00
eseries.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
ezx.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
generic.c
generic.h reboot: arm: change reboot_mode to use enum reboot_mode 2013-07-09 10:33:29 -07:00
gumstix.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
h5000.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
himalaya.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
hx4700.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
icontrol.c can: mcp251x: Replace power callbacks with regulator API 2013-08-21 09:28:29 +02:00
idp.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
irq.c ARM: pxa: add devicetree code for irq handling 2012-08-16 16:14:50 +08:00
Kconfig cpufreq: remove CONFIG_CPU_FREQ_TABLE 2013-10-16 00:50:33 +02:00
littleton.c Input: pxa27x-keypad - use matrix_keymap for matrix keys 2013-06-18 22:56:51 -07:00
lpd270.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
lubbock.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
magician.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
mainstone.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
Makefile cpufreq: pxa2xx: move cpufreq driver to drivers/cpufreq 2013-04-08 13:02:31 +02:00
Makefile.boot
mfp-pxa2xx.c
mfp-pxa3xx.c
mioa701_bootresume.S
mioa701.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
mp900.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
mxm8x10.c ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
palm27x.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
palmld.c Input: pxa27x-keypad - use matrix_keymap for matrix keys 2013-06-18 22:56:51 -07:00
palmt5.c Input: pxa27x-keypad - use matrix_keymap for matrix keys 2013-06-18 22:56:51 -07:00
palmtc.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
palmte2.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
palmtreo.c Input: pxa27x-keypad - use matrix_keymap for matrix keys 2013-06-18 22:56:51 -07:00
palmtx.c Input: pxa27x-keypad - use matrix_keymap for matrix keys 2013-06-18 22:56:51 -07:00
palmz72.c Input: pxa27x-keypad - use matrix_keymap for matrix keys 2013-06-18 22:56:51 -07:00
pcm027.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
pcm990-baseboard.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
pm.c
poodle.c ARM: pxa: propagate errors from regulator_enable() to pxamci 2013-07-23 12:15:15 -07:00
pxa2xx.c ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
pxa3xx-ulpi.c ARM: pxa: use module_platform_driver macro 2012-11-06 05:59:59 -08:00
pxa3xx.c ARM: pxa: move PXA_GPIO_TO_IRQ macro 2013-04-11 10:00:05 +08:00
pxa25x.c ARM: pxa: move PXA_GPIO_TO_IRQ macro 2013-04-11 10:00:05 +08:00
pxa27x.c ARM: pxa: move PXA_GPIO_TO_IRQ macro 2013-04-11 10:00:05 +08:00
pxa300.c
pxa320.c
pxa930.c ARM: pxa: move PXA_GPIO_TO_IRQ macro 2013-04-11 10:00:05 +08:00
pxa-dt.c ARM: pxa: fix DT auxdata for pxa3xx-gpio 2013-08-13 15:51:01 -07:00
raumfeld.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
reset.c ARM: pxa: prevent PXA270 occasional reboot freezes 2013-12-11 16:35:16 -08:00
saar.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
sharpsl_pm.c ARM: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
sleep.S
smemc.c ARM: PXA3xx: program the CSMSADRCFG register 2013-01-23 16:56:32 +08:00
spitz_pm.c ARM: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
spitz.c gpio: (gpio-pca953x) move header to linux/platform_data/ 2013-08-29 12:33:52 -07:00
standby.S
stargate2.c misc: (at24) move header to linux/platform_data/ 2013-09-30 06:02:34 +02:00
tavorevb.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
time.c sched_clock: Make ARM's sched_clock generic for all architectures 2013-06-12 14:02:13 -07:00
tosa-bt.c ARM: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
tosa.c ARM: pxa: tosa: fix keys mapping 2013-12-11 16:34:32 -08:00
trizeps4.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
viper.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
vpac270.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
xcep.c ARM: delete struct sys_timer 2012-12-24 09:36:38 -07:00
z2.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00
zeus.c ARM: SoC cleanups for 3.12 2013-09-06 13:21:16 -07:00
zylonite_pxa300.c gpio: (gpio-pca953x) move header to linux/platform_data/ 2013-08-29 12:33:52 -07:00
zylonite_pxa320.c
zylonite.c ARM: pxa: Initialize PWM backlight enable_gpio field 2013-10-16 09:05:57 +02:00