[PATCH] crypto: Add support for the Geode LX AES hardware

Add a driver to support the AES hardware on the Geode LX processor.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 42 insertions, 0 deletions

diff --git a/drivers/crypto/geode-aes.h b/drivers/crypto/geode-aes.h
new file mode 100644
index 000000000000..3e3a571d4a20
--- /dev/null
+++ b/drivers/crypto/geode-aes.h
@@ -0,0 +1,42 @@
+/* Copyright (C) 2003-2006, Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _GEODE_AES_H_
+#define _GEODE_AES_H_
+
+#define AES_KEY_LENGTH 16
+#define AES_IV_LENGTH  16
+
+#define AES_MIN_BLOCK_SIZE 16
+
+#define AES_MODE_ECB 0
+#define AES_MODE_CBC 1
+
+#define AES_DIR_DECRYPT 0
+#define AES_DIR_ENCRYPT 1
+
+#define AES_FLAGS_USRKEY   (1 << 0)
+#define AES_FLAGS_COHERENT (1 << 1)
+
+struct geode_aes_op {
+
+        void *src;
+        void *dst;
+
+        u32 mode;
+        u32 dir;
+        u32 flags;
+        int len;
+
+        u8 key[AES_KEY_LENGTH];
+        u8 iv[AES_IV_LENGTH];
+};
+
+unsigned int geode_aes_crypt(struct geode_aes_op *);
+
+#endif