1 files changed, 8 insertions, 1 deletions

diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index 826b72ba08d9..5e3027d3692f 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c
@@ -52,7 +52,14 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
 
         /* Assert SRS signal */
         __raw_writew(wcr_enable, wdog_base);
-        /* write twice to ensure the request will not get ignored */
+        /*
+         * 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... */