Index: linux-2.6.25.4/arch/mips/kernel/traps.c =================================================================== --- linux-2.6.25.4.orig/arch/mips/kernel/traps.c +++ linux-2.6.25.4/arch/mips/kernel/traps.c @@ -42,6 +42,7 @@ #include #include #include +#include extern asmlinkage void handle_int(void); extern asmlinkage void handle_tlbm(void); @@ -1379,6 +1380,8 @@ void __cpuinit per_cpu_trap_init(void) */ if (cpu_has_mips_r2) { cp0_compare_irq = (read_c0_intctl() >> 29) & 7; + if (get_c0_compare_irq) + cp0_compare_irq = get_c0_compare_irq(); cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7; if (cp0_perfcount_irq == cp0_compare_irq) cp0_perfcount_irq = -1; Index: linux-2.6.25.4/include/asm-mips/time.h =================================================================== --- linux-2.6.25.4.orig/include/asm-mips/time.h +++ linux-2.6.25.4/include/asm-mips/time.h @@ -53,6 +53,7 @@ extern int (*perf_irq)(void); #ifdef CONFIG_CEVT_R4K extern int mips_clockevent_init(void); extern unsigned int __weak get_c0_compare_int(void); +extern unsigned int __weak get_c0_compare_irq(void); #else static inline int mips_clockevent_init(void) { Index: linux-2.6.25.4/arch/mips/atheros/board.c =================================================================== --- linux-2.6.25.4.orig/arch/mips/atheros/board.c +++ linux-2.6.25.4/arch/mips/atheros/board.c @@ -205,6 +205,11 @@ void (*board_time_init)(void); void __init plat_time_init(void) { board_time_init(); } + +unsigned int __init get_c0_compare_irq(void) +{ + return CP0_LEGACY_COMPARE_IRQ; +} #endif void __init arch_init_irq(void)