+menuconfig ARC_DBG
+ bool "ARC debugging"
+ default n
+
+if ARC_DBG
+
+config ARC_DBG_IOC_ENABLE
+ bool "Enable IO coherency unit"
+ depends on CPU_ARCHS38
+ default n
+ help
+ Enable IO coherency unit to debug problems with caches and
+ DMA peripherals.
+ NOTE: as of today linux will not work properly if this option
+ is enabled in u-boot!
+
+endif
+