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