diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 1bc57d0f4c5..0afe94c48fb 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -328,6 +328,9 @@ void __init arch_init_irq(void)
 
 void __init plat_time_init(void)
 {
+#ifdef CONFIG_CPU_TX49XX
+	mips_hpt_frequency = txx9_cpu_clock / 2;
+#endif
 	txx9_board_vec->time_init();
 }