diff --git a/arch/mips/cpu/mips32/cpu.c b/arch/mips/cpu/mips32/cpu.c
index 3ae397c8e..7b49e1b61 100644
--- a/arch/mips/cpu/mips32/cpu.c
+++ b/arch/mips/cpu/mips32/cpu.c
@@ -56,6 +56,10 @@ void flush_cache(ulong start_addr, ulong size)
 	unsigned long addr = start_addr & ~(lsize - 1);
 	unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
 
+	/* aend will be miscalculated when size is zero, so we return here */
+	if (size == 0)
+		return;
+
 	while (1) {
 		cache_op(Hit_Writeback_Inv_D, addr);
 		cache_op(Hit_Invalidate_I, addr);