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 49 struct geode_aes_op { 50 51 void *src; 52 void *dst; 53 54 u32 mode; 55 u32 dir; 56 u32 flags; 57 int len; 58 59 u8 key[AES_KEYSIZE_128]; 60 u8 *iv; 61 62 union { 63 struct crypto_blkcipher *blk; 64 struct crypto_cipher *cip; 65 } fallback; 66 u32 keylen; 67 }; 68 69 #endif 70