diff -drupN a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
--- a/arch/mips/mm/tlb-r4k.c	2017-10-21 18:09:07.000000000 +0300
+++ b/arch/mips/mm/tlb-r4k.c	2022-06-09 05:02:27.000000000 +0300
@@ -52,7 +52,7 @@ void local_flush_tlb_all(void)
 {
 	unsigned long flags;
 	unsigned long old_ctx;
-	int entry, ftlbhighset;
+	int entry;
 
 	local_irq_save(flags);
 	/* Save old context and create impossible VPN2 value */
@@ -65,6 +65,8 @@ void local_flush_tlb_all(void)
 
 	/* Blast 'em all away. */
 	if (cpu_has_tlbinv) {
+#ifndef CONFIG_MACH_XBURST2
+		int ftlbhighset;
 		if (current_cpu_data.tlbsizevtlb) {
 			write_c0_index(0);
 			mtc0_tlbw_hazard();
@@ -79,6 +81,9 @@ void local_flush_tlb_all(void)
 			mtc0_tlbw_hazard();
 			tlbinvf();  /* invalidate one FTLB set */
 		}
+#else
+		tlbinvf();  /* invalide FTLB/VTLB set */
+#endif
 	} else {
 		while (entry < current_cpu_data.tlbsize) {
 			/* Make sure all entries differ. */