diff --git a/drivers/char/tpm/tpm_atmel.h b/drivers/char/tpm/tpm_atmel.h
index c912d8691cbd202d036f3593b3451d11020a7dcf..9363bcf0a402e7bf5417395f4211f3de2666e5c5 100644
--- a/drivers/char/tpm/tpm_atmel.h
+++ b/drivers/char/tpm/tpm_atmel.h
@@ -23,6 +23,9 @@
  */
 
 #ifdef CONFIG_PPC64
+
+#include <asm/prom.h>
+
 #define atmel_getb(chip, offset) readb(chip->vendor->iobase + offset);
 #define atmel_putb(val, chip, offset) writeb(val, chip->vendor->iobase + offset)
 #define atmel_request_region request_mem_region