drivers/crypto/rockchip/rk3288_crypto.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __RK3288_CRYPTO_H__
   3 #define __RK3288_CRYPTO_H__
   4
   5 #include <crypto/aes.h>
   6 #include <crypto/engine.h>
   7 #include <crypto/internal/des.h>
   8 #include <crypto/internal/hash.h>
   9 #include <crypto/internal/skcipher.h>
  10 #include <crypto/md5.h>
  11 #include <crypto/sha1.h>
  12 #include <crypto/sha2.h>
  13 #include <linux/dma-mapping.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/pm_runtime.h>
  16 #include <linux/scatterlist.h>
  17 #include <linux/types.h>
  18
  19 #define _SBF(v, f)                      ((v) << (f))
  20
  21 /* Crypto control registers*/
  22 #define RK_CRYPTO_INTSTS                0x0000
  23 #define RK_CRYPTO_PKA_DONE_INT          BIT(5)
  24 #define RK_CRYPTO_HASH_DONE_INT         BIT(4)
  25 #define RK_CRYPTO_HRDMA_ERR_INT         BIT(3)
  26 #define RK_CRYPTO_HRDMA_DONE_INT        BIT(2)
  27 #define RK_CRYPTO_BCDMA_ERR_INT         BIT(1)
  28 #define RK_CRYPTO_BCDMA_DONE_INT        BIT(0)
  29
  30 #define RK_CRYPTO_INTENA                0x0004
  31 #define RK_CRYPTO_PKA_DONE_ENA          BIT(5)
  32 #define RK_CRYPTO_HASH_DONE_ENA         BIT(4)
  33 #define RK_CRYPTO_HRDMA_ERR_ENA         BIT(3)
  34 #define RK_CRYPTO_HRDMA_DONE_ENA        BIT(2)
  35 #define RK_CRYPTO_BCDMA_ERR_ENA         BIT(1)
  36 #define RK_CRYPTO_BCDMA_DONE_ENA        BIT(0)
  37
  38 #define RK_CRYPTO_CTRL                  0x0008
  39 #define RK_CRYPTO_WRITE_MASK            _SBF(0xFFFF, 16)
  40 #define RK_CRYPTO_TRNG_FLUSH            BIT(9)
  41 #define RK_CRYPTO_TRNG_START            BIT(8)
  42 #define RK_CRYPTO_PKA_FLUSH             BIT(7)
  43 #define RK_CRYPTO_HASH_FLUSH            BIT(6)
  44 #define RK_CRYPTO_BLOCK_FLUSH           BIT(5)
  45 #define RK_CRYPTO_PKA_START             BIT(4)
  46 #define RK_CRYPTO_HASH_START            BIT(3)
  47 #define RK_CRYPTO_BLOCK_START           BIT(2)
  48 #define RK_CRYPTO_TDES_START            BIT(1)
  49 #define RK_CRYPTO_AES_START             BIT(0)
  50
  51 #define RK_CRYPTO_CONF                  0x000c
  52 /* HASH Receive DMA Address Mode:   fix | increment */
  53 #define RK_CRYPTO_HR_ADDR_MODE          BIT(8)
  54 /* Block Transmit DMA Address Mode: fix | increment */
  55 #define RK_CRYPTO_BT_ADDR_MODE          BIT(7)
  56 /* Block Receive DMA Address Mode:  fix | increment */
  57 #define RK_CRYPTO_BR_ADDR_MODE          BIT(6)
  58 #define RK_CRYPTO_BYTESWAP_HRFIFO       BIT(5)
  59 #define RK_CRYPTO_BYTESWAP_BTFIFO       BIT(4)
  60 #define RK_CRYPTO_BYTESWAP_BRFIFO       BIT(3)
  61 /* AES = 0 OR DES = 1 */
  62 #define RK_CRYPTO_DESSEL                                BIT(2)
  63 #define RK_CYYPTO_HASHINSEL_INDEPENDENT_SOURCE          _SBF(0x00, 0)
  64 #define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_INPUT          _SBF(0x01, 0)
  65 #define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_OUTPUT         _SBF(0x02, 0)
  66
  67 /* Block Receiving DMA Start Address Register */
  68 #define RK_CRYPTO_BRDMAS                0x0010
  69 /* Block Transmitting DMA Start Address Register */
  70 #define RK_CRYPTO_BTDMAS                0x0014
  71 /* Block Receiving DMA Length Register */
  72 #define RK_CRYPTO_BRDMAL                0x0018
  73 /* Hash Receiving DMA Start Address Register */
  74 #define RK_CRYPTO_HRDMAS                0x001c
  75 /* Hash Receiving DMA Length Register */
  76 #define RK_CRYPTO_HRDMAL                0x0020
  77
  78 /* AES registers */
  79 #define RK_CRYPTO_AES_CTRL                        0x0080
  80 #define RK_CRYPTO_AES_BYTESWAP_CNT      BIT(11)
  81 #define RK_CRYPTO_AES_BYTESWAP_KEY      BIT(10)
  82 #define RK_CRYPTO_AES_BYTESWAP_IV       BIT(9)
  83 #define RK_CRYPTO_AES_BYTESWAP_DO       BIT(8)
  84 #define RK_CRYPTO_AES_BYTESWAP_DI       BIT(7)
  85 #define RK_CRYPTO_AES_KEY_CHANGE        BIT(6)
  86 #define RK_CRYPTO_AES_ECB_MODE          _SBF(0x00, 4)
  87 #define RK_CRYPTO_AES_CBC_MODE          _SBF(0x01, 4)
  88 #define RK_CRYPTO_AES_CTR_MODE          _SBF(0x02, 4)
  89 #define RK_CRYPTO_AES_128BIT_key        _SBF(0x00, 2)
  90 #define RK_CRYPTO_AES_192BIT_key        _SBF(0x01, 2)
  91 #define RK_CRYPTO_AES_256BIT_key        _SBF(0x02, 2)
  92 /* Slave = 0 / fifo = 1 */
  93 #define RK_CRYPTO_AES_FIFO_MODE         BIT(1)
  94 /* Encryption = 0 , Decryption = 1 */
  95 #define RK_CRYPTO_AES_DEC               BIT(0)
  96
  97 #define RK_CRYPTO_AES_STS               0x0084
  98 #define RK_CRYPTO_AES_DONE              BIT(0)
  99
 100 /* AES Input Data 0-3 Register */
 101 #define RK_CRYPTO_AES_DIN_0             0x0088
 102 #define RK_CRYPTO_AES_DIN_1             0x008c
 103 #define RK_CRYPTO_AES_DIN_2             0x0090
 104 #define RK_CRYPTO_AES_DIN_3             0x0094
 105
 106 /* AES output Data 0-3 Register */
 107 #define RK_CRYPTO_AES_DOUT_0            0x0098
 108 #define RK_CRYPTO_AES_DOUT_1            0x009c
 109 #define RK_CRYPTO_AES_DOUT_2            0x00a0
 110 #define RK_CRYPTO_AES_DOUT_3            0x00a4
 111
 112 /* AES IV Data 0-3 Register */
 113 #define RK_CRYPTO_AES_IV_0              0x00a8
 114 #define RK_CRYPTO_AES_IV_1              0x00ac
 115 #define RK_CRYPTO_AES_IV_2              0x00b0
 116 #define RK_CRYPTO_AES_IV_3              0x00b4
 117
 118 /* AES Key Data 0-3 Register */
 119 #define RK_CRYPTO_AES_KEY_0             0x00b8
 120 #define RK_CRYPTO_AES_KEY_1             0x00bc
 121 #define RK_CRYPTO_AES_KEY_2             0x00c0
 122 #define RK_CRYPTO_AES_KEY_3             0x00c4
 123 #define RK_CRYPTO_AES_KEY_4             0x00c8
 124 #define RK_CRYPTO_AES_KEY_5             0x00cc
 125 #define RK_CRYPTO_AES_KEY_6             0x00d0
 126 #define RK_CRYPTO_AES_KEY_7             0x00d4
 127
 128 /* des/tdes */
 129 #define RK_CRYPTO_TDES_CTRL             0x0100
 130 #define RK_CRYPTO_TDES_BYTESWAP_KEY     BIT(8)
 131 #define RK_CRYPTO_TDES_BYTESWAP_IV      BIT(7)
 132 #define RK_CRYPTO_TDES_BYTESWAP_DO      BIT(6)
 133 #define RK_CRYPTO_TDES_BYTESWAP_DI      BIT(5)
 134 /* 0: ECB, 1: CBC */
 135 #define RK_CRYPTO_TDES_CHAINMODE_CBC    BIT(4)
 136 /* TDES Key Mode, 0 : EDE, 1 : EEE */
 137 #define RK_CRYPTO_TDES_EEE              BIT(3)
 138 /* 0: DES, 1:TDES */
 139 #define RK_CRYPTO_TDES_SELECT           BIT(2)
 140 /* 0: Slave, 1:Fifo */
 141 #define RK_CRYPTO_TDES_FIFO_MODE        BIT(1)
 142 /* Encryption = 0 , Decryption = 1 */
 143 #define RK_CRYPTO_TDES_DEC              BIT(0)
 144
 145 #define RK_CRYPTO_TDES_STS              0x0104
 146 #define RK_CRYPTO_TDES_DONE             BIT(0)
 147
 148 #define RK_CRYPTO_TDES_DIN_0            0x0108
 149 #define RK_CRYPTO_TDES_DIN_1            0x010c
 150 #define RK_CRYPTO_TDES_DOUT_0           0x0110
 151 #define RK_CRYPTO_TDES_DOUT_1           0x0114
 152 #define RK_CRYPTO_TDES_IV_0             0x0118
 153 #define RK_CRYPTO_TDES_IV_1             0x011c
 154 #define RK_CRYPTO_TDES_KEY1_0           0x0120
 155 #define RK_CRYPTO_TDES_KEY1_1           0x0124
 156 #define RK_CRYPTO_TDES_KEY2_0           0x0128
 157 #define RK_CRYPTO_TDES_KEY2_1           0x012c
 158 #define RK_CRYPTO_TDES_KEY3_0           0x0130
 159 #define RK_CRYPTO_TDES_KEY3_1           0x0134
 160
 161 /* HASH */
 162 #define RK_CRYPTO_HASH_CTRL             0x0180
 163 #define RK_CRYPTO_HASH_SWAP_DO          BIT(3)
 164 #define RK_CRYPTO_HASH_SWAP_DI          BIT(2)
 165 #define RK_CRYPTO_HASH_SHA1             _SBF(0x00, 0)
 166 #define RK_CRYPTO_HASH_MD5              _SBF(0x01, 0)
 167 #define RK_CRYPTO_HASH_SHA256           _SBF(0x02, 0)
 168 #define RK_CRYPTO_HASH_PRNG             _SBF(0x03, 0)
 169
 170 #define RK_CRYPTO_HASH_STS              0x0184
 171 #define RK_CRYPTO_HASH_DONE             BIT(0)
 172
 173 #define RK_CRYPTO_HASH_MSG_LEN          0x0188
 174 #define RK_CRYPTO_HASH_DOUT_0           0x018c
 175 #define RK_CRYPTO_HASH_DOUT_1           0x0190
 176 #define RK_CRYPTO_HASH_DOUT_2           0x0194
 177 #define RK_CRYPTO_HASH_DOUT_3           0x0198
 178 #define RK_CRYPTO_HASH_DOUT_4           0x019c
 179 #define RK_CRYPTO_HASH_DOUT_5           0x01a0
 180 #define RK_CRYPTO_HASH_DOUT_6           0x01a4
 181 #define RK_CRYPTO_HASH_DOUT_7           0x01a8
 182
 183 #define CRYPTO_READ(dev, offset)                  \
 184                 readl_relaxed(((dev)->reg + (offset)))
 185 #define CRYPTO_WRITE(dev, offset, val)    \
 186                 writel_relaxed((val), ((dev)->reg + (offset)))
 187
 188 #define RK_MAX_CLKS 4
 189
 190 /*
 191  * struct rockchip_ip - struct for managing a list of RK crypto instance
 192  * @dev_list:           Used for doing a list of rk_crypto_info
 193  * @lock:               Control access to dev_list
 194  * @dbgfs_dir:          Debugfs dentry for statistic directory
 195  * @dbgfs_stats:        Debugfs dentry for statistic counters
 196  */
 197 struct rockchip_ip {
 198         struct list_head        dev_list;
 199         spinlock_t              lock; /* Control access to dev_list */
 200         struct dentry           *dbgfs_dir;
 201         struct dentry           *dbgfs_stats;
 202 };
 203
 204 struct rk_clks {
 205         const char *name;
 206         unsigned long max;
 207 };
 208
 209 struct rk_variant {
 210         int num_clks;
 211         struct rk_clks rkclks[RK_MAX_CLKS];
 212 };
 213
 214 struct rk_crypto_info {
 215         struct list_head                list;
 216         struct device                   *dev;
 217         struct clk_bulk_data            *clks;
 218         int                             num_clks;
 219         struct reset_control            *rst;
 220         void __iomem                    *reg;
 221         int                             irq;
 222         const struct rk_variant *variant;
 223         unsigned long nreq;
 224         struct crypto_engine *engine;
 225         struct completion complete;
 226         int status;
 227 };
 228
 229 /* the private variable of hash */
 230 struct rk_ahash_ctx {
 231         /* for fallback */
 232         struct crypto_ahash             *fallback_tfm;
 233 };
 234
 235 /* the private variable of hash for fallback */
 236 struct rk_ahash_rctx {
 237         struct rk_crypto_info           *dev;
 238         struct ahash_request            fallback_req;
 239         u32                             mode;
 240         int nrsg;
 241 };
 242
 243 /* the private variable of cipher */
 244 struct rk_cipher_ctx {
 245         unsigned int                    keylen;
 246         u8                              key[AES_MAX_KEY_SIZE];
 247         u8                              iv[AES_BLOCK_SIZE];
 248         struct crypto_skcipher *fallback_tfm;
 249 };
 250
 251 struct rk_cipher_rctx {
 252         struct rk_crypto_info           *dev;
 253         u8 backup_iv[AES_BLOCK_SIZE];
 254         u32                             mode;
 255         struct skcipher_request fallback_req;   // keep at the end
 256 };
 257
 258 struct rk_crypto_tmp {
 259         u32 type;
 260         struct rk_crypto_info           *dev;
 261         union {
 262                 struct skcipher_engine_alg skcipher;
 263                 struct ahash_engine_alg hash;
 264         } alg;
 265         unsigned long stat_req;
 266         unsigned long stat_fb;
 267         unsigned long stat_fb_len;
 268         unsigned long stat_fb_sglen;
 269         unsigned long stat_fb_align;
 270         unsigned long stat_fb_sgdiff;
 271 };
 272
 273 extern struct rk_crypto_tmp rk_ecb_aes_alg;
 274 extern struct rk_crypto_tmp rk_cbc_aes_alg;
 275 extern struct rk_crypto_tmp rk_ecb_des_alg;
 276 extern struct rk_crypto_tmp rk_cbc_des_alg;
 277 extern struct rk_crypto_tmp rk_ecb_des3_ede_alg;
 278 extern struct rk_crypto_tmp rk_cbc_des3_ede_alg;
 279
 280 extern struct rk_crypto_tmp rk_ahash_sha1;
 281 extern struct rk_crypto_tmp rk_ahash_sha256;
 282 extern struct rk_crypto_tmp rk_ahash_md5;
 283
 284 struct rk_crypto_info *get_rk_crypto(void);
 285 #endif