Blackfin: implement nmi_watchdog for SMP on BF561
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index 87f195e..1460d7b 100644
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -238,6 +238,15 @@
all of this lives in the init section and is thrown away after the
kernel boots completely.
+config NMI_WATCHDOG
+ bool "Enable NMI watchdog to help debugging lockup on SMP"
+ default n
+ depends on (SMP && !BFIN_SCRATCH_REG_RETN)
+ help
+ If any CPU in the system does not execute the period local timer
+ interrupt for more than 5 seconds, then the NMI handler dumps debug
+ information. This information can be used to debug the lockup.
+
config CPLB_INFO
bool "Display the CPLB information"
help