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 286