{
unsigned int wcr_enable;
- if (cpu_is_imx6q() || cpu_is_imx6dl())
- imx_src_prepare_restart();
-
if (wdog_clk)
clk_enable(wdog_clk);
/* 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... */