diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index b0d6084de359dfc7a9156130b3d7ebd9598d9e2e..afef5c740aa4c0ea2a3b54c9a0f92c330de62b96 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -163,7 +163,7 @@ static struct cplb_desc cplb_data[] = {
 
 static bool __init lock_kernel_check(u32 start, u32 end)
 {
-	if (start >= (u32)_end || end <= (u32)_stext)
+	if (start >= (u32)__init_begin || end <= (u32)_stext)
 		return false;
 
 	/* This cplb block overlapped with kernel area. */