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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-12-16 02:04:49 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2013-12-16 02:04:49 -0800
commit348324c5b10bcba8d9daabdfb85a6927311be34f (patch)
treed06ca3a264407a14a1f36c1b798d6dc0dc1582d8 /arch/arm/mach-imx/system.c
parent1e63bd9cc43db5400a1423a7ec8266b4e7c54bd0 (diff)
parent319e2e3f63c348a9b66db4667efa73178e18b17d (diff)
downloadtalos-op-linux-348324c5b10bcba8d9daabdfb85a6927311be34f.tar.gz
talos-op-linux-348324c5b10bcba8d9daabdfb85a6927311be34f.zip
Merge tag 'v3.13-rc4' into next
Synchronize with mainline to bring in the new keycode definitions and new hwmon API.
Diffstat (limited to 'arch/arm/mach-imx/system.c')
-rw-r--r--arch/arm/mach-imx/system.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index 80c177c36c5f..5e3027d3692f 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c
@@ -52,6 +52,15 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
/* Assert SRS signal */
__raw_writew(wcr_enable, wdog_base);
+ /*
+ * Due to imx6q errata ERR004346 (WDOG: WDOG SRS bit requires to be
+ * written twice), we add another two writes to ensure there must be at
+ * least two writes happen in the same one 32kHz clock period. We save
+ * the target check here, since the writes shouldn't be a huge burden
+ * for other platforms.
+ */
+ __raw_writew(wcr_enable, wdog_base);
+ __raw_writew(wcr_enable, wdog_base);
/* wait for reset to assert... */
mdelay(500);
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