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-rw-r--r--arch/arc/kernel/process.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index fd5b2190a957..5c631a111240 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -92,7 +92,18 @@ void arch_cpu_idle(void)
:"I"(arg)); /* can't be "r" has to be embedded const */
}
-#else
+#elif defined(CONFIG_EZNPS_MTM_EXT) /* ARC700 variant in NPS */
+
+void arch_cpu_idle(void)
+{
+ /* only the calling HW thread needs to sleep */
+ __asm__ __volatile__(
+ ".word %0 \n"
+ :
+ :"i"(CTOP_INST_HWSCHD_WFT_IE12));
+}
+
+#else /* ARC700 */
void arch_cpu_idle(void)
{