diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index f6595aba4f0fdd6a65da2328a1ee972260bc85d5..fa567f1158c2f77bcfc2c495258bb48a777ccbdd 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -43,6 +43,7 @@ config TCG_NSC
 
 config TCG_ATMEL
 	tristate "Atmel TPM Interface"
+	depends on PPC64 || HAS_IOPORT
 	---help---
 	  If you have a TPM security chip from Atmel say Yes and it 
 	  will be accessible from within Linux.  To compile this driver