diff --git a/lib/aarch64/misc_helpers.S b/lib/aarch64/misc_helpers.S
index 5f80b59..e7c246e 100644
--- a/lib/aarch64/misc_helpers.S
+++ b/lib/aarch64/misc_helpers.S
@@ -141,9 +141,6 @@
 
 /* ---------------------------------------------------------------------------
  * Disable the MMU at EL3
- * This is implemented in assembler to ensure that the data cache is cleaned
- * and invalidated after the MMU is disabled without any intervening cacheable
- * data accesses
  * ---------------------------------------------------------------------------
  */
 
@@ -154,8 +151,8 @@
 	bic	x0, x0, x1
 	msr	sctlr_el3, x0
 	isb				// ensure MMU is off
-	mov	x0, #DCCISW		// DCache clean and invalidate
-	b	dcsw_op_all
+	dsb	sy
+	ret
 endfunc disable_mmu_el3