--- zzzz-none-000/linux-2.6.39.4/arch/x86/include/asm/hpet.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/arch/x86/include/asm/hpet.h	2021-11-10 13:38:14.000000000 +0000
@@ -72,6 +72,12 @@
 extern int hpet_enable(void);
 extern void hpet_disable(void);
 extern unsigned int hpet_readl(unsigned int a);
+
+#ifdef CONFIG_ARCH_GEN3
+extern void hpet_enable_legacy_int(void);
+extern void hpet_disable_legacy_int(void);
+#endif
+
 extern void force_hpet_resume(void);
 
 struct irq_data;