Hi Magnus, On Mon, Jan 9, 2017 at 7:50 AM, Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> wrote: > Commit 5fe65ce7ccbb ("watchdog: imx2_wdt: Disable power down counter on > boot") introduced a write to the WMCR register that doesn't exist on > i.MX21, i.MX27 and i.MX31 and so makes the SoC hang during probe. > > So teach the driver to differentiate between these two types. Note that > this effectively undoes commit 5fe65ce7ccbb for machines using dt until > their dtb is updated accordingly. This is critical iff the bootloader > doesn't disable the power down counter and the #WDOG signal actually > does something to the machine. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> Is it possible for you to try this series and let us know if it fixes the mx31 watchdog issue? Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html