ARM: Introduce plat-tcc irq framework

Introduce lowlevel interrupt routines.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/arm/mach-tcc8k/common.h b/arch/arm/mach-tcc8k/common.h
index e2c902c..e539548 100644
--- a/arch/arm/mach-tcc8k/common.h
+++ b/arch/arm/mach-tcc8k/common.h
@@ -2,5 +2,6 @@
 #define MACH_TCC8K_COMMON_H
 
 extern void tcc_clocks_init(unsigned long xi_freq, unsigned long xti_freq);
+extern void tcc8k_init_irq(void);
 
 #endif