diff --git a/arch/arc/core/fast_irq.s b/arch/arc/core/fast_irq.s
index 3a6969f3b3f..5405ed995e7 100644
--- a/arch/arc/core/fast_irq.s
+++ b/arch/arc/core/fast_irq.s
@@ -133,7 +133,7 @@ SECTION_FUNC(TEXT, _firq_exit)
 
 	lr r3, [_ARC_V2_AUX_IRQ_ACT]
 
-	/* Viper on ARCv2 always runs in kernel mode, so assume bit31 [U] in
+	/* the OS on ARCv2 always runs in kernel mode, so assume bit31 [U] in
 	 * AUX_IRQ_ACT is always 0: if the contents of AUX_IRQ_ACT is not 1, it
 	 * means that another bit is set so an interrupt was interrupted.
 	 */
diff --git a/arch/arc/core/regular_irq.s b/arch/arc/core/regular_irq.s
index ab89a4aa8aa..85cadfb7dbe 100644
--- a/arch/arc/core/regular_irq.s
+++ b/arch/arc/core/regular_irq.s
@@ -96,7 +96,7 @@ SECTION_FUNC(TEXT, _rirq_exit)
 
 	asl r0, 1, r0
 
-	/* Viper on ARCv2 always runs in kernel mode, so assume bit31 [U] in
+	/* the OS on ARCv2 always runs in kernel mode, so assume bit31 [U] in
 	 * AUX_IRQ_ACT is always 0: if the contents of AUX_IRQ_ACT is greater
 	 * than FFS(AUX_IRQ_ACT), it means that another bit is set so an
 	 * interrupt was interrupted.
diff --git a/scripts/Makefile.preparch b/scripts/Makefile.preparch
index 4e45204a2a3..64fc724bad5 100644
--- a/scripts/Makefile.preparch
+++ b/scripts/Makefile.preparch
@@ -32,7 +32,6 @@ define filechk_prj.vpf
 	cat $(srctree)/config/$(CONFIG_BSP_DIR)/ukernel/config1p.vpf;)
 endef
 
-#Specific source code generation for Viper
 misc/generated/sysgen/prj.vpf:	$(srctree)/config/$(CONFIG_BSP_DIR)/ukernel/config1p.vpf \
 				$(PROJECT_BASE)/$(VPFILE) \
 				include/config/auto.conf FORCE