x86_64: prepare shared crypto/Makefile

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86_64/crypto/Makefile b/arch/x86_64/crypto/Makefile
index c96faeb..fbd34ac 100644
--- a/arch/x86_64/crypto/Makefile
+++ b/arch/x86_64/crypto/Makefile
@@ -1,12 +1,5 @@
-# 
-# x86_64/crypto/Makefile 
-# 
-# Arch-specific CryptoAPI modules.
-# 
-
-obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
-obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
-
-aes-x86_64-y := aes-x86_64-asm_64.o aes_64.o
-twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_64.o
-
+ifeq ($(CONFIG_X86_32),y)
+include ${srctree}/arch/i386/crypto/Makefile_32
+else
+include ${srctree}/arch/x86_64/crypto/Makefile_64
+endif
diff --git a/arch/x86_64/crypto/Makefile_64 b/arch/x86_64/crypto/Makefile_64
new file mode 100644
index 0000000..c96faeb
--- /dev/null
+++ b/arch/x86_64/crypto/Makefile_64
@@ -0,0 +1,12 @@
+# 
+# x86_64/crypto/Makefile 
+# 
+# Arch-specific CryptoAPI modules.
+# 
+
+obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
+obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
+
+aes-x86_64-y := aes-x86_64-asm_64.o aes_64.o
+twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_64.o
+