1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* Copyright (C) 2003-2006, Advanced Micro Devices, Inc. 3 */ 4 5#ifndef _GEODE_AES_H_ 6#define _GEODE_AES_H_ 7 8/* driver logic flags */ 9#define AES_MODE_ECB 0 10#define AES_MODE_CBC 1 11 12#define AES_DIR_DECRYPT 0 13#define AES_DIR_ENCRYPT 1 14 15#define AES_FLAGS_HIDDENKEY (1 << 0) 16 17/* Register definitions */ 18 19#define AES_CTRLA_REG 0x0000 20 21#define AES_CTRL_START 0x01 22#define AES_CTRL_DECRYPT 0x00 23#define AES_CTRL_ENCRYPT 0x02 24#define AES_CTRL_WRKEY 0x04 25#define AES_CTRL_DCA 0x08 26#define AES_CTRL_SCA 0x10 27#define AES_CTRL_CBC 0x20 28 29#define AES_INTR_REG 0x0008 30 31#define AES_INTRA_PENDING (1 << 16) 32#define AES_INTRB_PENDING (1 << 17) 33 34#define AES_INTR_PENDING (AES_INTRA_PENDING | AES_INTRB_PENDING) 35#define AES_INTR_MASK 0x07 36 37#define AES_SOURCEA_REG 0x0010 38#define AES_DSTA_REG 0x0014 39#define AES_LENA_REG 0x0018 40#define AES_WRITEKEY0_REG 0x0030 41#define AES_WRITEIV0_REG 0x0040 42 43/* A very large counter that is used to gracefully bail out of an 44 * operation in case of trouble 45 */ 46 47#define AES_OP_TIMEOUT 0x50000 48 49struct geode_aes_tfm_ctx { 50 u8 key[AES_KEYSIZE_128]; 51 union { 52 struct crypto_skcipher *skcipher; 53 struct crypto_cipher *cip; 54 } fallback; 55 u32 keylen; 56}; 57 58#endif 59