diff --git a/arch/mips/dec/prom/memory.c b/arch/mips/dec/prom/memory.c
index 5073d2ed78bb..031c0cd45d85 100644
--- a/arch/mips/dec/prom/memory.c
+++ b/arch/mips/dec/prom/memory.c
@@ -91,29 +91,14 @@ void __init prom_meminit(u32 magic)
 		pmax_setup_memory_region();
 	else
 		rex_setup_memory_region();
-}
-
-void __init prom_free_prom_memory(void)
-{
-	unsigned long end;
-
-	/*
-	 * Free everything below the kernel itself but leave
-	 * the first page reserved for the exception handlers.
-	 */
 
 #if IS_ENABLED(CONFIG_DECLANCE)
 	/*
-	 * Leave 128 KB reserved for Lance memory for
-	 * IOASIC DECstations.
+	 * Reserve 128 KB for Lance memory for IOASIC DECstations.
 	 *
 	 * XXX: save this address for use in dec_lance.c?
 	 */
 	if (IOASIC)
-		end = __pa(&_text) - 0x00020000;
-	else
+		memblock_reserve(__pa_symbol(&_text) - 0x00020000, 0x00020000);
 #endif
-		end = __pa(&_text);
-
-	free_init_pages("unused PROM memory", PAGE_SIZE, end);
 }