--- zzzz-none-000/linux-3.10.107/arch/mips/bcm63xx/cpu.c	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/bcm63xx/cpu.c	2021-11-10 11:53:53.000000000 +0000
@@ -115,7 +115,9 @@
 
 static unsigned int detect_cpu_clock(void)
 {
-	switch (bcm63xx_get_cpu_id()) {
+	u16 cpu_id = bcm63xx_get_cpu_id();
+
+	switch (cpu_id) {
 	case BCM6328_CPU_ID:
 	{
 		unsigned int tmp, mips_pll_fcvo;
@@ -238,7 +240,7 @@
 	}
 
 	default:
-		BUG();
+		panic("Failed to detect clock for CPU with id=%04d\n", cpu_id);
 	}
 }