1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd 4 */ 5 6 #include <common.h> 7 #include <clk.h> 8 #include <crypto.h> 9 #include <dm.h> 10 #include <asm/io.h> 11 #include <asm/arch/hardware.h> 12 #include <asm/arch/clock.h> 13 #include <rockchip/crypto_hash_cache.h> 14 #include <rockchip/crypto_v2.h> 15 #include <rockchip/crypto_v2_pka.h> 16 17 #define RK_HASH_CTX_MAGIC 0x1A1A1A1A 18 19 #ifdef DEBUG 20 #define IMSG(format, ...) printf("[%s, %05d]-trace: " format "\n", \ 21 __func__, __LINE__, ##__VA_ARGS__) 22 #else 23 #define IMSG(format, ...) 24 #endif 25 26 struct crypto_lli_desc { 27 u32 src_addr; 28 u32 src_len; 29 u32 dst_addr; 30 u32 dst_len; 31 u32 user_define; 32 u32 reserve; 33 u32 dma_ctrl; 34 u32 next_addr; 35 }; 36 37 struct rk_hash_ctx { 38 struct crypto_lli_desc data_lli; /* lli desc */ 39 struct crypto_hash_cache *hash_cache; 40 u32 magic; /* to check ctx */ 41 u32 algo; /* hash algo */ 42 u8 digest_size; /* hash out length */ 43 u8 reserved[3]; 44 }; 45 46 struct rk_crypto_soc_data { 47 u32 capability; 48 }; 49 50 struct rockchip_crypto_priv { 51 fdt_addr_t reg; 52 struct clk clk; 53 u32 frequency; 54 char *clocks; 55 u32 *frequencies; 56 u32 nclocks; 57 u32 length; 58 struct rk_hash_ctx *hw_ctx; 59 struct rk_crypto_soc_data *soc_data; 60 }; 61 62 #define LLI_ADDR_ALIGN_SIZE 8 63 #define DATA_ADDR_ALIGN_SIZE 8 64 #define DATA_LEN_ALIGN_SIZE 64 65 66 /* crypto timeout 500ms, must support more than 32M data per times*/ 67 #define HASH_UPDATE_LIMIT (32 * 1024 * 1024) 68 #define RK_CRYPTO_TIMEOUT 500000 69 70 #define RK_POLL_TIMEOUT(condition, timeout) \ 71 ({ \ 72 int time_out = timeout; \ 73 while (condition) { \ 74 if (--time_out <= 0) { \ 75 debug("[%s] %d: time out!\n", __func__,\ 76 __LINE__); \ 77 break; \ 78 } \ 79 udelay(1); \ 80 } \ 81 (time_out <= 0) ? -ETIMEDOUT : 0; \ 82 }) 83 84 #define WAIT_TAG_VALID(channel, timeout) ({ \ 85 u32 tag_mask = CRYPTO_CH0_TAG_VALID << (channel);\ 86 int ret;\ 87 ret = RK_POLL_TIMEOUT(!(crypto_read(CRYPTO_TAG_VALID) & tag_mask),\ 88 timeout);\ 89 crypto_write(crypto_read(CRYPTO_TAG_VALID) & tag_mask, CRYPTO_TAG_VALID);\ 90 ret;\ 91 }) 92 93 #define virt_to_phys(addr) (((unsigned long)addr) & 0xffffffff) 94 #define phys_to_virt(addr, area) ((unsigned long)addr) 95 96 #define align_malloc(bytes, alignment) memalign(alignment, bytes) 97 #define align_free(addr) free(addr) 98 99 #define ROUNDUP(size, alignment) round_up(size, alignment) 100 #define cache_op_inner(type, addr, size) \ 101 crypto_flush_cacheline((ulong)addr, size) 102 103 #define IS_NEED_IV(rk_mode) ((rk_mode) != RK_MODE_ECB && \ 104 (rk_mode) != RK_MODE_CMAC && \ 105 (rk_mode) != RK_MODE_CBC_MAC) 106 107 #define IS_NEED_TAG(rk_mode) ((rk_mode) == RK_MODE_CMAC || \ 108 (rk_mode) == RK_MODE_CBC_MAC || \ 109 (rk_mode) == RK_MODE_CCM || \ 110 (rk_mode) == RK_MODE_GCM) 111 112 #define IS_MAC_MODE(rk_mode) ((rk_mode) == RK_MODE_CMAC || \ 113 (rk_mode) == RK_MODE_CBC_MAC) 114 115 #define IS_AE_MODE(rk_mode) ((rk_mode) == RK_MODE_CCM || \ 116 (rk_mode) == RK_MODE_GCM) 117 118 fdt_addr_t crypto_base; 119 120 static inline void word2byte_be(u32 word, u8 *ch) 121 { 122 ch[0] = (word >> 24) & 0xff; 123 ch[1] = (word >> 16) & 0xff; 124 ch[2] = (word >> 8) & 0xff; 125 ch[3] = (word >> 0) & 0xff; 126 } 127 128 static inline u32 byte2word_be(const u8 *ch) 129 { 130 return (*ch << 24) + (*(ch + 1) << 16) + (*(ch + 2) << 8) + *(ch + 3); 131 } 132 133 static inline void clear_regs(u32 base, u32 words) 134 { 135 int i; 136 137 /*clear out register*/ 138 for (i = 0; i < words; i++) 139 crypto_write(0, base + 4 * i); 140 } 141 142 static inline void clear_hash_out_reg(void) 143 { 144 clear_regs(CRYPTO_HASH_DOUT_0, 16); 145 } 146 147 static inline void clear_key_regs(void) 148 { 149 clear_regs(CRYPTO_CH0_KEY_0, CRYPTO_KEY_CHANNEL_NUM * 4); 150 } 151 152 static inline void read_regs(u32 base, u8 *data, u32 data_len) 153 { 154 u8 tmp_buf[4]; 155 u32 i; 156 157 for (i = 0; i < data_len / 4; i++) 158 word2byte_be(crypto_read(base + i * 4), 159 data + i * 4); 160 161 if (data_len % 4) { 162 word2byte_be(crypto_read(base + i * 4), tmp_buf); 163 memcpy(data + i * 4, tmp_buf, data_len % 4); 164 } 165 } 166 167 static inline void write_regs(u32 base, const u8 *data, u32 data_len) 168 { 169 u8 tmp_buf[4]; 170 u32 i; 171 172 for (i = 0; i < data_len / 4; i++, base += 4) 173 crypto_write(byte2word_be(data + i * 4), base); 174 175 if (data_len % 4) { 176 memset(tmp_buf, 0x00, sizeof(tmp_buf)); 177 memcpy((u8 *)tmp_buf, data + i * 4, data_len % 4); 178 crypto_write(byte2word_be(tmp_buf), base); 179 } 180 } 181 182 static inline void write_key_reg(u32 chn, const u8 *key, u32 key_len) 183 { 184 write_regs(CRYPTO_CH0_KEY_0 + chn * 0x10, key, key_len); 185 } 186 187 static inline void set_iv_reg(u32 chn, const u8 *iv, u32 iv_len) 188 { 189 u32 base_iv; 190 191 base_iv = CRYPTO_CH0_IV_0 + chn * 0x10; 192 193 /* clear iv */ 194 clear_regs(base_iv, 4); 195 196 if (!iv || iv_len == 0) 197 return; 198 199 write_regs(base_iv, iv, iv_len); 200 201 crypto_write(iv_len, CRYPTO_CH0_IV_LEN_0 + 4 * chn); 202 } 203 204 static inline void get_iv_reg(u32 chn, u8 *iv, u32 iv_len) 205 { 206 u32 base_iv; 207 208 base_iv = CRYPTO_CH0_IV_0 + chn * 0x10; 209 210 read_regs(base_iv, iv, iv_len); 211 } 212 213 static inline void get_tag_from_reg(u32 chn, u8 *tag, u32 tag_len) 214 { 215 u32 i; 216 u32 chn_base = CRYPTO_CH0_TAG_0 + 0x10 * chn; 217 218 for (i = 0; i < tag_len / 4; i++, chn_base += 4) 219 word2byte_be(crypto_read(chn_base), tag + 4 * i); 220 } 221 222 static int hw_crypto_reset(void) 223 { 224 u32 val = 0, mask = 0; 225 int ret; 226 227 val = CRYPTO_SW_PKA_RESET | CRYPTO_SW_CC_RESET; 228 mask = val << CRYPTO_WRITE_MASK_SHIFT; 229 230 /* reset pka and crypto modules*/ 231 crypto_write(val | mask, CRYPTO_RST_CTL); 232 233 /* wait reset compelete */ 234 ret = RK_POLL_TIMEOUT(crypto_read(CRYPTO_RST_CTL), RK_CRYPTO_TIMEOUT); 235 236 return ret; 237 } 238 239 static void hw_hash_clean_ctx(struct rk_hash_ctx *ctx) 240 { 241 /* clear hash status */ 242 crypto_write(CRYPTO_WRITE_MASK_ALL | 0, CRYPTO_HASH_CTL); 243 244 assert(ctx); 245 assert(ctx->magic == RK_HASH_CTX_MAGIC); 246 247 crypto_hash_cache_free(ctx->hash_cache); 248 249 memset(ctx, 0x00, sizeof(*ctx)); 250 } 251 252 static int rk_hash_init(void *hw_ctx, u32 algo) 253 { 254 struct rk_hash_ctx *tmp_ctx = (struct rk_hash_ctx *)hw_ctx; 255 u32 reg_ctrl = 0; 256 int ret; 257 258 if (!tmp_ctx) 259 return -EINVAL; 260 261 reg_ctrl = CRYPTO_SW_CC_RESET; 262 crypto_write(reg_ctrl | (reg_ctrl << CRYPTO_WRITE_MASK_SHIFT), 263 CRYPTO_RST_CTL); 264 265 /* wait reset compelete */ 266 ret = RK_POLL_TIMEOUT(crypto_read(CRYPTO_RST_CTL), 267 RK_CRYPTO_TIMEOUT); 268 269 reg_ctrl = 0; 270 tmp_ctx->algo = algo; 271 switch (algo) { 272 case CRYPTO_MD5: 273 case CRYPTO_HMAC_MD5: 274 reg_ctrl |= CRYPTO_MODE_MD5; 275 tmp_ctx->digest_size = 16; 276 break; 277 case CRYPTO_SHA1: 278 case CRYPTO_HMAC_SHA1: 279 reg_ctrl |= CRYPTO_MODE_SHA1; 280 tmp_ctx->digest_size = 20; 281 break; 282 case CRYPTO_SHA256: 283 case CRYPTO_HMAC_SHA256: 284 reg_ctrl |= CRYPTO_MODE_SHA256; 285 tmp_ctx->digest_size = 32; 286 break; 287 case CRYPTO_SHA512: 288 case CRYPTO_HMAC_SHA512: 289 reg_ctrl |= CRYPTO_MODE_SHA512; 290 tmp_ctx->digest_size = 64; 291 break; 292 case CRYPTO_SM3: 293 case CRYPTO_HMAC_SM3: 294 reg_ctrl |= CRYPTO_MODE_SM3; 295 tmp_ctx->digest_size = 32; 296 break; 297 default: 298 ret = -EINVAL; 299 goto exit; 300 } 301 302 clear_hash_out_reg(); 303 304 /* enable hardware padding */ 305 reg_ctrl |= CRYPTO_HW_PAD_ENABLE; 306 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_HASH_CTL); 307 308 /* FIFO input and output data byte swap */ 309 /* such as B0, B1, B2, B3 -> B3, B2, B1, B0 */ 310 reg_ctrl = CRYPTO_DOUT_BYTESWAP | CRYPTO_DOIN_BYTESWAP; 311 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_FIFO_CTL); 312 313 /* enable src_item_done interrupt */ 314 crypto_write(CRYPTO_SRC_ITEM_INT_EN, CRYPTO_DMA_INT_EN); 315 316 tmp_ctx->magic = RK_HASH_CTX_MAGIC; 317 318 return 0; 319 exit: 320 /* clear hash setting if init failed */ 321 crypto_write(CRYPTO_WRITE_MASK_ALL | 0, CRYPTO_HASH_CTL); 322 323 return ret; 324 } 325 326 static int rk_hash_direct_calc(void *hw_data, const u8 *data, 327 u32 data_len, u8 *started_flag, u8 is_last) 328 { 329 struct rockchip_crypto_priv *priv = hw_data; 330 struct rk_hash_ctx *hash_ctx = priv->hw_ctx; 331 struct crypto_lli_desc *lli = &hash_ctx->data_lli; 332 int ret = -EINVAL; 333 u32 tmp = 0, mask = 0; 334 335 assert(IS_ALIGNED((ulong)data, DATA_ADDR_ALIGN_SIZE)); 336 assert(is_last || IS_ALIGNED(data_len, DATA_LEN_ALIGN_SIZE)); 337 338 debug("%s: data = %p, len = %u, s = %x, l = %x\n", 339 __func__, data, data_len, *started_flag, is_last); 340 341 memset(lli, 0x00, sizeof(*lli)); 342 lli->src_addr = (u32)virt_to_phys(data); 343 lli->src_len = data_len; 344 lli->dma_ctrl = LLI_DMA_CTRL_SRC_DONE; 345 346 if (is_last) { 347 lli->user_define |= LLI_USER_STRING_LAST; 348 lli->dma_ctrl |= LLI_DMA_CTRL_LAST; 349 } else { 350 lli->next_addr = (u32)virt_to_phys(lli); 351 lli->dma_ctrl |= LLI_DMA_CTRL_PAUSE; 352 } 353 354 if (!(*started_flag)) { 355 lli->user_define |= 356 (LLI_USER_STRING_START | LLI_USER_CPIHER_START); 357 crypto_write((u32)virt_to_phys(lli), CRYPTO_DMA_LLI_ADDR); 358 crypto_write((CRYPTO_HASH_ENABLE << CRYPTO_WRITE_MASK_SHIFT) | 359 CRYPTO_HASH_ENABLE, CRYPTO_HASH_CTL); 360 tmp = CRYPTO_DMA_START; 361 *started_flag = 1; 362 } else { 363 tmp = CRYPTO_DMA_RESTART; 364 } 365 366 /* flush cache */ 367 crypto_flush_cacheline((ulong)lli, sizeof(*lli)); 368 crypto_flush_cacheline((ulong)data, data_len); 369 370 /* start calculate */ 371 crypto_write(tmp << CRYPTO_WRITE_MASK_SHIFT | tmp, 372 CRYPTO_DMA_CTL); 373 374 /* mask CRYPTO_SYNC_LOCKSTEP_INT_ST flag */ 375 mask = ~(mask | CRYPTO_SYNC_LOCKSTEP_INT_ST); 376 377 /* wait calc ok */ 378 ret = RK_POLL_TIMEOUT(!(crypto_read(CRYPTO_DMA_INT_ST) & mask), 379 RK_CRYPTO_TIMEOUT); 380 381 /* clear interrupt status */ 382 tmp = crypto_read(CRYPTO_DMA_INT_ST); 383 crypto_write(tmp, CRYPTO_DMA_INT_ST); 384 385 if (tmp != CRYPTO_SRC_ITEM_DONE_INT_ST && 386 tmp != CRYPTO_ZERO_LEN_INT_ST) { 387 debug("[%s] %d: CRYPTO_DMA_INT_ST = 0x%x\n", 388 __func__, __LINE__, tmp); 389 goto exit; 390 } 391 392 priv->length += data_len; 393 exit: 394 return ret; 395 } 396 397 int rk_hash_update(void *ctx, const u8 *data, u32 data_len) 398 { 399 struct rk_hash_ctx *tmp_ctx = (struct rk_hash_ctx *)ctx; 400 int ret = -EINVAL; 401 402 debug("\n"); 403 if (!tmp_ctx || !data) 404 goto exit; 405 406 if (tmp_ctx->digest_size == 0 || tmp_ctx->magic != RK_HASH_CTX_MAGIC) 407 goto exit; 408 409 ret = crypto_hash_update_with_cache(tmp_ctx->hash_cache, 410 data, data_len); 411 412 exit: 413 /* free lli list */ 414 if (ret) 415 hw_hash_clean_ctx(tmp_ctx); 416 417 return ret; 418 } 419 420 int rk_hash_final(void *ctx, u8 *digest, size_t len) 421 { 422 struct rk_hash_ctx *tmp_ctx = (struct rk_hash_ctx *)ctx; 423 int ret = -EINVAL; 424 425 if (!digest) 426 goto exit; 427 428 if (!tmp_ctx || 429 tmp_ctx->digest_size == 0 || 430 len > tmp_ctx->digest_size || 431 tmp_ctx->magic != RK_HASH_CTX_MAGIC) { 432 goto exit; 433 } 434 435 /* wait hash value ok */ 436 ret = RK_POLL_TIMEOUT(!crypto_read(CRYPTO_HASH_VALID), 437 RK_CRYPTO_TIMEOUT); 438 439 read_regs(CRYPTO_HASH_DOUT_0, digest, len); 440 441 /* clear hash status */ 442 crypto_write(CRYPTO_HASH_IS_VALID, CRYPTO_HASH_VALID); 443 crypto_write(CRYPTO_WRITE_MASK_ALL | 0, CRYPTO_HASH_CTL); 444 445 exit: 446 447 return ret; 448 } 449 450 static u32 rockchip_crypto_capability(struct udevice *dev) 451 { 452 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 453 u32 capability, mask = 0; 454 455 capability = priv->soc_data->capability; 456 457 #if !(CONFIG_IS_ENABLED(ROCKCHIP_CIPHER)) 458 mask |= (CRYPTO_DES | CRYPTO_AES | CRYPTO_SM4); 459 #endif 460 461 #if !(CONFIG_IS_ENABLED(ROCKCHIP_HMAC)) 462 mask |= (CRYPTO_HMAC_MD5 | CRYPTO_HMAC_SHA1 | CRYPTO_HMAC_SHA256 | 463 CRYPTO_HMAC_SHA512 | CRYPTO_HMAC_SM3); 464 #endif 465 466 #if !(CONFIG_IS_ENABLED(ROCKCHIP_RSA)) 467 mask |= (CRYPTO_RSA512 | CRYPTO_RSA1024 | CRYPTO_RSA2048 | 468 CRYPTO_RSA3072 | CRYPTO_RSA4096); 469 #endif 470 471 return capability & (~mask); 472 } 473 474 static int rockchip_crypto_sha_init(struct udevice *dev, sha_context *ctx) 475 { 476 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 477 struct rk_hash_ctx *hash_ctx = priv->hw_ctx; 478 479 if (!ctx) 480 return -EINVAL; 481 482 memset(hash_ctx, 0x00, sizeof(*hash_ctx)); 483 484 priv->length = 0; 485 486 hash_ctx->hash_cache = crypto_hash_cache_alloc(rk_hash_direct_calc, 487 priv, ctx->length, 488 DATA_ADDR_ALIGN_SIZE, 489 DATA_LEN_ALIGN_SIZE); 490 if (!hash_ctx->hash_cache) 491 return -EFAULT; 492 493 return rk_hash_init(hash_ctx, ctx->algo); 494 } 495 496 static int rockchip_crypto_sha_update(struct udevice *dev, 497 u32 *input, u32 len) 498 { 499 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 500 int ret, i; 501 u8 *p; 502 503 if (!len) 504 return -EINVAL; 505 506 p = (u8 *)input; 507 508 for (i = 0; i < len / HASH_UPDATE_LIMIT; i++, p += HASH_UPDATE_LIMIT) { 509 ret = rk_hash_update(priv->hw_ctx, p, HASH_UPDATE_LIMIT); 510 if (ret) 511 goto exit; 512 } 513 514 if (len % HASH_UPDATE_LIMIT) 515 ret = rk_hash_update(priv->hw_ctx, p, len % HASH_UPDATE_LIMIT); 516 517 exit: 518 return ret; 519 } 520 521 static int rockchip_crypto_sha_final(struct udevice *dev, 522 sha_context *ctx, u8 *output) 523 { 524 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 525 u32 nbits; 526 int ret; 527 528 nbits = crypto_algo_nbits(ctx->algo); 529 530 if (priv->length != ctx->length) { 531 printf("total length(0x%08x) != init length(0x%08x)!\n", 532 priv->length, ctx->length); 533 ret = -EIO; 534 goto exit; 535 } 536 537 ret = rk_hash_final(priv->hw_ctx, (u8 *)output, BITS2BYTE(nbits)); 538 539 exit: 540 hw_hash_clean_ctx(priv->hw_ctx); 541 return ret; 542 } 543 544 #if CONFIG_IS_ENABLED(ROCKCHIP_HMAC) 545 int rk_hmac_init(void *hw_ctx, u32 algo, u8 *key, u32 key_len) 546 { 547 u32 reg_ctrl = 0; 548 int ret; 549 550 if (!key || !key_len || key_len > 64) 551 return -EINVAL; 552 553 clear_key_regs(); 554 555 write_key_reg(0, key, key_len); 556 557 ret = rk_hash_init(hw_ctx, algo); 558 if (ret) 559 return ret; 560 561 reg_ctrl = crypto_read(CRYPTO_HASH_CTL) | CRYPTO_HMAC_ENABLE; 562 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_HASH_CTL); 563 564 return ret; 565 } 566 567 static int rockchip_crypto_hmac_init(struct udevice *dev, 568 sha_context *ctx, u8 *key, u32 key_len) 569 { 570 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 571 struct rk_hash_ctx *hash_ctx = priv->hw_ctx; 572 573 if (!ctx) 574 return -EINVAL; 575 576 memset(hash_ctx, 0x00, sizeof(*hash_ctx)); 577 578 priv->length = 0; 579 580 hash_ctx->hash_cache = crypto_hash_cache_alloc(rk_hash_direct_calc, 581 priv, ctx->length, 582 DATA_ADDR_ALIGN_SIZE, 583 DATA_LEN_ALIGN_SIZE); 584 if (!hash_ctx->hash_cache) 585 return -EFAULT; 586 587 return rk_hmac_init(priv->hw_ctx, ctx->algo, key, key_len); 588 } 589 590 static int rockchip_crypto_hmac_update(struct udevice *dev, 591 u32 *input, u32 len) 592 { 593 return rockchip_crypto_sha_update(dev, input, len); 594 } 595 596 static int rockchip_crypto_hmac_final(struct udevice *dev, 597 sha_context *ctx, u8 *output) 598 { 599 return rockchip_crypto_sha_final(dev, ctx, output); 600 } 601 602 #endif 603 604 #if CONFIG_IS_ENABLED(ROCKCHIP_CIPHER) 605 static u8 g_key_chn; 606 607 static const u32 rk_mode2bc_mode[RK_MODE_MAX] = { 608 [RK_MODE_ECB] = CRYPTO_BC_ECB, 609 [RK_MODE_CBC] = CRYPTO_BC_CBC, 610 [RK_MODE_CTS] = CRYPTO_BC_CTS, 611 [RK_MODE_CTR] = CRYPTO_BC_CTR, 612 [RK_MODE_CFB] = CRYPTO_BC_CFB, 613 [RK_MODE_OFB] = CRYPTO_BC_OFB, 614 [RK_MODE_XTS] = CRYPTO_BC_XTS, 615 [RK_MODE_CCM] = CRYPTO_BC_CCM, 616 [RK_MODE_GCM] = CRYPTO_BC_GCM, 617 [RK_MODE_CMAC] = CRYPTO_BC_CMAC, 618 [RK_MODE_CBC_MAC] = CRYPTO_BC_CBC_MAC, 619 }; 620 621 static inline void set_pc_len_reg(u32 chn, u64 pc_len) 622 { 623 u32 chn_base = CRYPTO_CH0_PC_LEN_0 + chn * 0x08; 624 625 crypto_write(pc_len & 0xffffffff, chn_base); 626 crypto_write(pc_len >> 32, chn_base + 4); 627 } 628 629 static inline void set_aad_len_reg(u32 chn, u64 pc_len) 630 { 631 u32 chn_base = CRYPTO_CH0_AAD_LEN_0 + chn * 0x08; 632 633 crypto_write(pc_len & 0xffffffff, chn_base); 634 crypto_write(pc_len >> 32, chn_base + 4); 635 } 636 637 static inline bool is_des_mode(u32 rk_mode) 638 { 639 return (rk_mode == RK_MODE_ECB || 640 rk_mode == RK_MODE_CBC || 641 rk_mode == RK_MODE_CFB || 642 rk_mode == RK_MODE_OFB); 643 } 644 645 static void dump_crypto_state(struct crypto_lli_desc *desc, int ret) 646 { 647 IMSG("%s\n", ret == -ETIME ? "timeout" : "dismatch"); 648 649 IMSG("CRYPTO_DMA_INT_ST = %08x, expect_int = %08x\n", 650 tmp, expt_int); 651 IMSG("data desc = %p\n", desc); 652 IMSG("\taddr_in = [%08x <=> %08x]\n", 653 desc->src_addr, (u32)virt_to_phys(in)); 654 IMSG("\taddr_out = [%08x <=> %08x]\n", 655 desc->dst_addr, (u32)virt_to_phys(out)); 656 IMSG("\tsrc_len = [%08x <=> %08x]\n", 657 desc->src_len, (u32)len); 658 IMSG("\tdst_len = %08x\n", desc->dst_len); 659 IMSG("\tdma_ctl = %08x\n", desc->dma_ctrl); 660 IMSG("\tuser_define = %08x\n", desc->user_define); 661 662 IMSG("\n\nDMA CRYPTO_DMA_LLI_ADDR status = %08x\n", 663 crypto_read(CRYPTO_DMA_LLI_ADDR)); 664 IMSG("DMA CRYPTO_DMA_ST status = %08x\n", 665 crypto_read(CRYPTO_DMA_ST)); 666 IMSG("DMA CRYPTO_DMA_STATE status = %08x\n", 667 crypto_read(CRYPTO_DMA_STATE)); 668 IMSG("DMA CRYPTO_DMA_LLI_RADDR status = %08x\n", 669 crypto_read(CRYPTO_DMA_LLI_RADDR)); 670 IMSG("DMA CRYPTO_DMA_SRC_RADDR status = %08x\n", 671 crypto_read(CRYPTO_DMA_SRC_RADDR)); 672 IMSG("DMA CRYPTO_DMA_DST_RADDR status = %08x\n", 673 crypto_read(CRYPTO_DMA_DST_RADDR)); 674 IMSG("DMA CRYPTO_CIPHER_ST status = %08x\n", 675 crypto_read(CRYPTO_CIPHER_ST)); 676 IMSG("DMA CRYPTO_CIPHER_STATE status = %08x\n", 677 crypto_read(CRYPTO_CIPHER_STATE)); 678 IMSG("DMA CRYPTO_TAG_VALID status = %08x\n", 679 crypto_read(CRYPTO_TAG_VALID)); 680 IMSG("LOCKSTEP status = %08x\n\n", 681 crypto_read(0x618)); 682 683 IMSG("dst %dbyte not transferred\n", 684 desc->dst_addr + desc->dst_len - 685 crypto_read(CRYPTO_DMA_DST_RADDR)); 686 } 687 688 static int ccm128_set_iv_reg(u32 chn, const u8 *nonce, u32 nlen) 689 { 690 u8 iv_buf[AES_BLOCK_SIZE]; 691 u32 L; 692 693 memset(iv_buf, 0x00, sizeof(iv_buf)); 694 695 L = 15 - nlen; 696 iv_buf[0] = ((u8)(L - 1) & 7); 697 698 /* the L parameter */ 699 L = iv_buf[0] & 7; 700 701 /* nonce is too short */ 702 if (nlen < (14 - L)) 703 return -EINVAL; 704 705 /* clear aad flag */ 706 iv_buf[0] &= ~0x40; 707 memcpy(&iv_buf[1], nonce, 14 - L); 708 709 set_iv_reg(chn, iv_buf, AES_BLOCK_SIZE); 710 711 return 0; 712 } 713 714 static void ccm_aad_padding(u32 aad_len, u8 *padding, u32 *padding_size) 715 { 716 u32 i; 717 718 i = aad_len < (0x10000 - 0x100) ? 2 : 6; 719 720 if (i == 2) { 721 padding[0] = (u8)(aad_len >> 8); 722 padding[1] = (u8)aad_len; 723 } else { 724 padding[0] = 0xFF; 725 padding[1] = 0xFE; 726 padding[2] = (u8)(aad_len >> 24); 727 padding[3] = (u8)(aad_len >> 16); 728 padding[4] = (u8)(aad_len >> 8); 729 } 730 731 *padding_size = i; 732 } 733 734 static int ccm_compose_aad_iv(u8 *aad_iv, u32 data_len, u32 tag_size) 735 { 736 aad_iv[0] |= ((u8)(((tag_size - 2) / 2) & 7) << 3); 737 738 aad_iv[12] = (u8)(data_len >> 24); 739 aad_iv[13] = (u8)(data_len >> 16); 740 aad_iv[14] = (u8)(data_len >> 8); 741 aad_iv[15] = (u8)data_len; 742 743 aad_iv[0] |= 0x40; //set aad flag 744 745 return 0; 746 } 747 748 static int hw_cipher_init(u32 chn, const u8 *key, const u8 *twk_key, 749 u32 key_len, const u8 *iv, u32 iv_len, 750 u32 algo, u32 mode, bool enc) 751 { 752 u32 rk_mode = RK_GET_RK_MODE(mode); 753 u32 key_chn_sel = chn; 754 u32 reg_ctrl = 0; 755 756 IMSG("%s: key addr is %p, key_len is %d, iv addr is %p", 757 __func__, key, key_len, iv); 758 if (rk_mode >= RK_MODE_MAX) 759 return -EINVAL; 760 761 switch (algo) { 762 case CRYPTO_DES: 763 if (key_len > DES_BLOCK_SIZE) 764 reg_ctrl |= CRYPTO_BC_TDES; 765 else 766 reg_ctrl |= CRYPTO_BC_DES; 767 break; 768 case CRYPTO_AES: 769 reg_ctrl |= CRYPTO_BC_AES; 770 break; 771 case CRYPTO_SM4: 772 reg_ctrl |= CRYPTO_BC_SM4; 773 break; 774 default: 775 return -EINVAL; 776 } 777 778 if (algo == CRYPTO_AES || algo == CRYPTO_SM4) { 779 switch (key_len) { 780 case AES_KEYSIZE_128: 781 reg_ctrl |= CRYPTO_BC_128_bit_key; 782 break; 783 case AES_KEYSIZE_192: 784 reg_ctrl |= CRYPTO_BC_192_bit_key; 785 break; 786 case AES_KEYSIZE_256: 787 reg_ctrl |= CRYPTO_BC_256_bit_key; 788 break; 789 default: 790 return -EINVAL; 791 } 792 } 793 794 reg_ctrl |= rk_mode2bc_mode[rk_mode]; 795 if (!enc) 796 reg_ctrl |= CRYPTO_BC_DECRYPT; 797 798 /* write key data to reg */ 799 write_key_reg(key_chn_sel, key, key_len); 800 801 /* write twk key for xts mode */ 802 if (rk_mode == RK_MODE_XTS) 803 write_key_reg(key_chn_sel + 4, twk_key, key_len); 804 805 /* set iv reg */ 806 if (rk_mode == RK_MODE_CCM) 807 ccm128_set_iv_reg(chn, iv, iv_len); 808 else 809 set_iv_reg(chn, iv, iv_len); 810 811 /* din_swap set 1, dout_swap set 1, default 1. */ 812 crypto_write(0x00030003, CRYPTO_FIFO_CTL); 813 crypto_write(CRYPTO_LIST_DONE_INT_EN | CRYPTO_DST_ITEM_DONE_INT_EN, 814 CRYPTO_DMA_INT_EN); 815 816 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_BC_CTL); 817 818 return 0; 819 } 820 821 static int hw_cipher_crypt(const u8 *in, u8 *out, u64 len, 822 const u8 *aad, u32 aad_len, 823 u8 *tag, u32 tag_len, u32 mode) 824 { 825 struct crypto_lli_desc *data_desc = NULL, *aad_desc = NULL; 826 u8 *dma_in = NULL, *dma_out = NULL, *aad_tmp = NULL; 827 u32 rk_mode = RK_GET_RK_MODE(mode); 828 u32 reg_ctrl = 0, tmp_len = 0; 829 u32 expt_int = 0, mask = 0; 830 u32 key_chn = g_key_chn; 831 u32 tmp, dst_len = 0; 832 int ret = -1; 833 834 if (rk_mode == RK_MODE_CTS && len <= AES_BLOCK_SIZE) { 835 printf("CTS mode length %u < 16Byte\n", (u32)len); 836 return -EINVAL; 837 } 838 839 tmp_len = (rk_mode == RK_MODE_CTR) ? ROUNDUP(len, AES_BLOCK_SIZE) : len; 840 841 data_desc = align_malloc(sizeof(*data_desc), LLI_ADDR_ALIGN_SIZE); 842 if (!data_desc) 843 goto exit; 844 845 if (IS_ALIGNED((ulong)in, DATA_ADDR_ALIGN_SIZE) && tmp_len == len) 846 dma_in = (void *)in; 847 else 848 dma_in = align_malloc(tmp_len, DATA_ADDR_ALIGN_SIZE); 849 if (!dma_in) 850 goto exit; 851 852 if (out) { 853 if (IS_ALIGNED((ulong)out, DATA_ADDR_ALIGN_SIZE) && 854 tmp_len == len) 855 dma_out = out; 856 else 857 dma_out = align_malloc(tmp_len, DATA_ADDR_ALIGN_SIZE); 858 if (!dma_out) 859 goto exit; 860 dst_len = tmp_len; 861 } 862 863 memset(data_desc, 0x00, sizeof(*data_desc)); 864 if (dma_in != in) 865 memcpy(dma_in, in, len); 866 867 data_desc->src_addr = (u32)virt_to_phys(dma_in); 868 data_desc->src_len = tmp_len; 869 data_desc->dst_addr = (u32)virt_to_phys(dma_out); 870 data_desc->dst_len = dst_len; 871 data_desc->dma_ctrl = LLI_DMA_CTRL_LAST; 872 873 if (IS_MAC_MODE(rk_mode)) { 874 expt_int = CRYPTO_LIST_DONE_INT_ST; 875 data_desc->dma_ctrl |= LLI_DMA_CTRL_LIST_DONE; 876 } else { 877 expt_int = CRYPTO_DST_ITEM_DONE_INT_ST; 878 data_desc->dma_ctrl |= LLI_DMA_CTRL_DST_DONE; 879 } 880 881 if (rk_mode == RK_MODE_CCM || rk_mode == RK_MODE_GCM) { 882 u32 aad_tmp_len = 0; 883 884 data_desc->user_define = LLI_USER_STRING_START | 885 LLI_USER_STRING_LAST | 886 (key_chn << 4); 887 888 aad_desc = align_malloc(sizeof(*aad_desc), LLI_ADDR_ALIGN_SIZE); 889 if (!aad_desc) 890 goto exit; 891 892 memset(aad_desc, 0x00, sizeof(*aad_desc)); 893 aad_desc->next_addr = (u32)virt_to_phys(data_desc); 894 aad_desc->user_define = LLI_USER_CPIHER_START | 895 LLI_USER_STRING_START | 896 LLI_USER_STRING_LAST | 897 LLI_USER_STRING_AAD | 898 (key_chn << 4); 899 900 if (rk_mode == RK_MODE_CCM) { 901 u8 padding[AES_BLOCK_SIZE]; 902 u32 padding_size = 0; 903 904 memset(padding, 0x00, sizeof(padding)); 905 ccm_aad_padding(aad_len, padding, &padding_size); 906 907 aad_tmp_len = aad_len + AES_BLOCK_SIZE + padding_size; 908 aad_tmp_len = ROUNDUP(aad_tmp_len, AES_BLOCK_SIZE); 909 aad_tmp = align_malloc(aad_tmp_len, 910 DATA_ADDR_ALIGN_SIZE); 911 if (!aad_tmp) 912 goto exit; 913 914 /* read iv data from reg */ 915 get_iv_reg(key_chn, aad_tmp, AES_BLOCK_SIZE); 916 ccm_compose_aad_iv(aad_tmp, tmp_len, tag_len); 917 memcpy(aad_tmp + AES_BLOCK_SIZE, padding, padding_size); 918 memset(aad_tmp + aad_tmp_len - AES_BLOCK_SIZE, 919 0x00, AES_BLOCK_SIZE); 920 memcpy(aad_tmp + AES_BLOCK_SIZE + padding_size, 921 aad, aad_len); 922 } else { 923 aad_tmp_len = aad_len; 924 aad_tmp = align_malloc(aad_tmp_len, 925 DATA_ADDR_ALIGN_SIZE); 926 if (!aad_tmp) 927 goto exit; 928 929 memcpy(aad_tmp, aad, aad_tmp_len); 930 set_aad_len_reg(key_chn, aad_tmp_len); 931 set_pc_len_reg(key_chn, tmp_len); 932 } 933 934 aad_desc->src_addr = (u32)virt_to_phys(aad_tmp); 935 aad_desc->src_len = aad_tmp_len; 936 crypto_write((u32)virt_to_phys(aad_desc), CRYPTO_DMA_LLI_ADDR); 937 cache_op_inner(DCACHE_AREA_CLEAN, aad_tmp, aad_tmp_len); 938 cache_op_inner(DCACHE_AREA_CLEAN, aad_desc, sizeof(*aad_desc)); 939 } else { 940 data_desc->user_define = LLI_USER_CPIHER_START | 941 LLI_USER_STRING_START | 942 LLI_USER_STRING_LAST | 943 (key_chn << 4); 944 crypto_write((u32)virt_to_phys(data_desc), CRYPTO_DMA_LLI_ADDR); 945 } 946 947 cache_op_inner(DCACHE_AREA_CLEAN, data_desc, sizeof(*data_desc)); 948 cache_op_inner(DCACHE_AREA_CLEAN, dma_in, tmp_len); 949 cache_op_inner(DCACHE_AREA_INVALIDATE, dma_out, tmp_len); 950 951 /* din_swap set 1, dout_swap set 1, default 1. */ 952 crypto_write(0x00030003, CRYPTO_FIFO_CTL); 953 crypto_write(CRYPTO_DST_ITEM_DONE_INT_EN | CRYPTO_LIST_DONE_INT_EN, 954 CRYPTO_DMA_INT_EN); 955 956 reg_ctrl = crypto_read(CRYPTO_BC_CTL) | CRYPTO_BC_ENABLE; 957 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_BC_CTL); 958 crypto_write(0x00010001, CRYPTO_DMA_CTL);//start 959 960 mask = ~(mask | CRYPTO_SYNC_LOCKSTEP_INT_ST); 961 962 /* wait calc ok */ 963 ret = RK_POLL_TIMEOUT(!(crypto_read(CRYPTO_DMA_INT_ST) & mask), 964 RK_CRYPTO_TIMEOUT); 965 tmp = crypto_read(CRYPTO_DMA_INT_ST); 966 crypto_write(tmp, CRYPTO_DMA_INT_ST); 967 968 if ((tmp & mask) == expt_int) { 969 if (out && out != dma_out) 970 memcpy(out, dma_out, len); 971 972 if (IS_NEED_TAG(rk_mode)) { 973 ret = WAIT_TAG_VALID(key_chn, RK_CRYPTO_TIMEOUT); 974 get_tag_from_reg(key_chn, tag, AES_BLOCK_SIZE); 975 } 976 } else { 977 dump_crypto_state(data_desc, ret); 978 ret = -1; 979 } 980 981 exit: 982 crypto_write(0xffff0000, CRYPTO_BC_CTL);//bc_ctl disable 983 align_free(data_desc); 984 align_free(aad_desc); 985 if (dma_in && dma_in != in) 986 align_free(dma_in); 987 if (dma_out && dma_out != out) 988 align_free(dma_out); 989 990 return ret; 991 } 992 993 static int hw_aes_init(u32 chn, const u8 *key, const u8 *twk_key, u32 key_len, 994 const u8 *iv, u32 iv_len, u32 mode, bool enc) 995 { 996 u32 rk_mode = RK_GET_RK_MODE(mode); 997 998 if (rk_mode > RK_MODE_XTS) 999 return -EINVAL; 1000 1001 if (iv_len > AES_BLOCK_SIZE) 1002 return -EINVAL; 1003 1004 if (IS_NEED_IV(rk_mode)) { 1005 if (!iv || iv_len != AES_BLOCK_SIZE) 1006 return -EINVAL; 1007 } else { 1008 iv_len = 0; 1009 } 1010 1011 if (rk_mode == RK_MODE_XTS) { 1012 if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_256) 1013 return -EINVAL; 1014 1015 if (!key || !twk_key) 1016 return -EINVAL; 1017 } else { 1018 if (key_len != AES_KEYSIZE_128 && 1019 key_len != AES_KEYSIZE_192 && 1020 key_len != AES_KEYSIZE_256) 1021 return -EINVAL; 1022 } 1023 1024 return hw_cipher_init(chn, key, twk_key, key_len, iv, iv_len, 1025 CRYPTO_AES, mode, enc); 1026 } 1027 1028 static int hw_sm4_init(u32 chn, const u8 *key, const u8 *twk_key, u32 key_len, 1029 const u8 *iv, u32 iv_len, u32 mode, bool enc) 1030 { 1031 u32 rk_mode = RK_GET_RK_MODE(mode); 1032 1033 if (rk_mode > RK_MODE_XTS) 1034 return -EINVAL; 1035 1036 if (iv_len > SM4_BLOCK_SIZE || key_len != SM4_KEYSIZE) 1037 return -EINVAL; 1038 1039 if (IS_NEED_IV(rk_mode)) { 1040 if (!iv || iv_len != SM4_BLOCK_SIZE) 1041 return -EINVAL; 1042 } else { 1043 iv_len = 0; 1044 } 1045 1046 if (rk_mode == RK_MODE_XTS) { 1047 if (!key || !twk_key) 1048 return -EINVAL; 1049 } 1050 1051 return hw_cipher_init(chn, key, twk_key, key_len, iv, iv_len, 1052 CRYPTO_SM4, mode, enc); 1053 } 1054 1055 int rk_crypto_des(struct udevice *dev, u32 mode, const u8 *key, u32 key_len, 1056 const u8 *iv, const u8 *in, u8 *out, u32 len, bool enc) 1057 { 1058 u32 rk_mode = RK_GET_RK_MODE(mode); 1059 u8 tmp_key[24]; 1060 int ret; 1061 1062 if (!is_des_mode(rk_mode)) 1063 return -EINVAL; 1064 1065 if (key_len == DES_BLOCK_SIZE || key_len == 3 * DES_BLOCK_SIZE) { 1066 memcpy(tmp_key, key, key_len); 1067 } else if (key_len == 2 * DES_BLOCK_SIZE) { 1068 memcpy(tmp_key, key, 16); 1069 memcpy(tmp_key + 16, key, 8); 1070 key_len = 3 * DES_BLOCK_SIZE; 1071 } else { 1072 return -EINVAL; 1073 } 1074 1075 ret = hw_cipher_init(0, tmp_key, NULL, key_len, iv, DES_BLOCK_SIZE, 1076 CRYPTO_DES, mode, enc); 1077 if (ret) 1078 goto exit; 1079 1080 ret = hw_cipher_crypt(in, out, len, NULL, 0, 1081 NULL, 0, mode); 1082 1083 exit: 1084 return ret; 1085 } 1086 1087 int rk_crypto_aes(struct udevice *dev, u32 mode, 1088 const u8 *key, const u8 *twk_key, u32 key_len, 1089 const u8 *iv, u32 iv_len, 1090 const u8 *in, u8 *out, u32 len, bool enc) 1091 { 1092 int ret; 1093 1094 /* RV1126/RV1109 do not support aes-192 */ 1095 #if defined(CONFIG_ROCKCHIP_RV1126) 1096 if (key_len == AES_KEYSIZE_192) 1097 return -EINVAL; 1098 #endif 1099 1100 ret = hw_aes_init(0, key, twk_key, key_len, iv, iv_len, mode, enc); 1101 if (ret) 1102 return ret; 1103 1104 return hw_cipher_crypt(in, out, len, NULL, 0, 1105 NULL, 0, mode); 1106 } 1107 1108 int rk_crypto_sm4(struct udevice *dev, u32 mode, 1109 const u8 *key, const u8 *twk_key, u32 key_len, 1110 const u8 *iv, u32 iv_len, 1111 const u8 *in, u8 *out, u32 len, bool enc) 1112 { 1113 int ret; 1114 1115 ret = hw_sm4_init(0, key, twk_key, key_len, iv, iv_len, mode, enc); 1116 if (ret) 1117 return ret; 1118 1119 return hw_cipher_crypt(in, out, len, NULL, 0, NULL, 0, mode); 1120 } 1121 1122 int rockchip_crypto_cipher(struct udevice *dev, cipher_context *ctx, 1123 const u8 *in, u8 *out, u32 len, bool enc) 1124 { 1125 switch (ctx->algo) { 1126 case CRYPTO_DES: 1127 return rk_crypto_des(dev, ctx->mode, ctx->key, ctx->key_len, 1128 ctx->iv, in, out, len, enc); 1129 case CRYPTO_AES: 1130 return rk_crypto_aes(dev, ctx->mode, 1131 ctx->key, ctx->twk_key, ctx->key_len, 1132 ctx->iv, ctx->iv_len, in, out, len, enc); 1133 case CRYPTO_SM4: 1134 return rk_crypto_sm4(dev, ctx->mode, 1135 ctx->key, ctx->twk_key, ctx->key_len, 1136 ctx->iv, ctx->iv_len, in, out, len, enc); 1137 default: 1138 return -EINVAL; 1139 } 1140 } 1141 1142 int rk_crypto_mac(struct udevice *dev, u32 algo, u32 mode, 1143 const u8 *key, u32 key_len, 1144 const u8 *in, u32 len, u8 *tag) 1145 { 1146 u32 rk_mode = RK_GET_RK_MODE(mode); 1147 int ret; 1148 1149 if (!IS_MAC_MODE(rk_mode)) 1150 return -EINVAL; 1151 1152 if (algo != CRYPTO_AES && algo != CRYPTO_SM4) 1153 return -EINVAL; 1154 1155 /* RV1126/RV1109 do not support aes-192 */ 1156 #if defined(CONFIG_ROCKCHIP_RV1126) 1157 if (algo == CRYPTO_AES && key_len == AES_KEYSIZE_192) 1158 return -EINVAL; 1159 #endif 1160 1161 ret = hw_cipher_init(g_key_chn, key, NULL, key_len, NULL, 0, 1162 algo, mode, true); 1163 if (ret) 1164 return ret; 1165 1166 return hw_cipher_crypt(in, NULL, len, NULL, 0, 1167 tag, AES_BLOCK_SIZE, mode); 1168 } 1169 1170 int rockchip_crypto_mac(struct udevice *dev, cipher_context *ctx, 1171 const u8 *in, u32 len, u8 *tag) 1172 { 1173 return rk_crypto_mac(dev, ctx->algo, ctx->mode, 1174 ctx->key, ctx->key_len, in, len, tag); 1175 } 1176 1177 int rk_crypto_ae(struct udevice *dev, u32 algo, u32 mode, 1178 const u8 *key, u32 key_len, const u8 *nonce, u32 nonce_len, 1179 const u8 *in, u32 len, const u8 *aad, u32 aad_len, 1180 u8 *out, u8 *tag) 1181 { 1182 u32 rk_mode = RK_GET_RK_MODE(mode); 1183 int ret; 1184 1185 if (!IS_AE_MODE(rk_mode)) 1186 return -EINVAL; 1187 1188 if (algo != CRYPTO_AES && algo != CRYPTO_SM4) 1189 return -EINVAL; 1190 1191 /* RV1126/RV1109 do not support aes-192 */ 1192 #if defined(CONFIG_ROCKCHIP_RV1126) 1193 if (algo == CRYPTO_AES && key_len == AES_KEYSIZE_192) 1194 return -EINVAL; 1195 #endif 1196 1197 ret = hw_cipher_init(g_key_chn, key, NULL, key_len, nonce, nonce_len, 1198 algo, mode, true); 1199 if (ret) 1200 return ret; 1201 1202 return hw_cipher_crypt(in, out, len, aad, aad_len, 1203 tag, AES_BLOCK_SIZE, mode); 1204 } 1205 1206 int rockchip_crypto_ae(struct udevice *dev, cipher_context *ctx, 1207 const u8 *in, u32 len, const u8 *aad, u32 aad_len, 1208 u8 *out, u8 *tag) 1209 1210 { 1211 return rk_crypto_ae(dev, ctx->algo, ctx->mode, ctx->key, ctx->key_len, 1212 ctx->iv, ctx->iv_len, in, len, 1213 aad, aad_len, out, tag); 1214 } 1215 1216 #endif 1217 1218 #if CONFIG_IS_ENABLED(ROCKCHIP_RSA) 1219 static int rockchip_crypto_rsa_verify(struct udevice *dev, rsa_key *ctx, 1220 u8 *sign, u8 *output) 1221 { 1222 struct mpa_num *mpa_m = NULL, *mpa_e = NULL, *mpa_n = NULL; 1223 struct mpa_num *mpa_c = NULL, *mpa_result = NULL; 1224 u32 n_bits, n_words; 1225 u32 *rsa_result; 1226 int ret; 1227 1228 if (!ctx) 1229 return -EINVAL; 1230 1231 if (ctx->algo != CRYPTO_RSA512 && 1232 ctx->algo != CRYPTO_RSA1024 && 1233 ctx->algo != CRYPTO_RSA2048 && 1234 ctx->algo != CRYPTO_RSA3072 && 1235 ctx->algo != CRYPTO_RSA4096) 1236 return -EINVAL; 1237 1238 n_bits = crypto_algo_nbits(ctx->algo); 1239 n_words = BITS2WORD(n_bits); 1240 1241 rsa_result = malloc(BITS2BYTE(n_bits)); 1242 if (!rsa_result) 1243 return -ENOMEM; 1244 1245 memset(rsa_result, 0x00, BITS2BYTE(n_bits)); 1246 1247 ret = rk_mpa_alloc(&mpa_m); 1248 ret |= rk_mpa_alloc(&mpa_e); 1249 ret |= rk_mpa_alloc(&mpa_n); 1250 ret |= rk_mpa_alloc(&mpa_c); 1251 ret |= rk_mpa_alloc(&mpa_result); 1252 if (ret) 1253 goto exit; 1254 1255 mpa_m->d = (void *)sign; 1256 mpa_e->d = (void *)ctx->e; 1257 mpa_n->d = (void *)ctx->n; 1258 mpa_c->d = (void *)ctx->c; 1259 mpa_result->d = (void *)rsa_result; 1260 1261 mpa_m->size = n_words; 1262 mpa_e->size = n_words; 1263 mpa_n->size = n_words; 1264 mpa_c->size = n_words; 1265 mpa_result->size = n_words; 1266 1267 ret = rk_exptmod_np(mpa_m, mpa_e, mpa_n, mpa_c, mpa_result); 1268 if (!ret) 1269 memcpy(output, rsa_result, BITS2BYTE(n_bits)); 1270 1271 exit: 1272 free(rsa_result); 1273 rk_mpa_free(&mpa_m); 1274 rk_mpa_free(&mpa_e); 1275 rk_mpa_free(&mpa_n); 1276 rk_mpa_free(&mpa_c); 1277 rk_mpa_free(&mpa_result); 1278 1279 return ret; 1280 } 1281 #endif 1282 1283 static const struct dm_crypto_ops rockchip_crypto_ops = { 1284 .capability = rockchip_crypto_capability, 1285 .sha_init = rockchip_crypto_sha_init, 1286 .sha_update = rockchip_crypto_sha_update, 1287 .sha_final = rockchip_crypto_sha_final, 1288 #if CONFIG_IS_ENABLED(ROCKCHIP_RSA) 1289 .rsa_verify = rockchip_crypto_rsa_verify, 1290 #endif 1291 #if CONFIG_IS_ENABLED(ROCKCHIP_HMAC) 1292 .hmac_init = rockchip_crypto_hmac_init, 1293 .hmac_update = rockchip_crypto_hmac_update, 1294 .hmac_final = rockchip_crypto_hmac_final, 1295 #endif 1296 #if CONFIG_IS_ENABLED(ROCKCHIP_CIPHER) 1297 .cipher_crypt = rockchip_crypto_cipher, 1298 .cipher_mac = rockchip_crypto_mac, 1299 .cipher_ae = rockchip_crypto_ae, 1300 #endif 1301 }; 1302 1303 /* 1304 * Only use "clocks" to parse crypto clock id and use rockchip_get_clk(). 1305 * Because we always add crypto node in U-Boot dts, when kernel dtb enabled : 1306 * 1307 * 1. There is cru phandle mismatch between U-Boot and kernel dtb; 1308 * 2. CONFIG_OF_SPL_REMOVE_PROPS removes clock property; 1309 */ 1310 static int rockchip_crypto_ofdata_to_platdata(struct udevice *dev) 1311 { 1312 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 1313 int len, ret = -EINVAL; 1314 1315 if (!dev_read_prop(dev, "clocks", &len)) { 1316 printf("Can't find \"clocks\" property\n"); 1317 return -EINVAL; 1318 } 1319 1320 memset(priv, 0x00, sizeof(*priv)); 1321 priv->clocks = malloc(len); 1322 if (!priv->clocks) 1323 return -ENOMEM; 1324 1325 priv->nclocks = len / sizeof(u32); 1326 if (dev_read_u32_array(dev, "clocks", (u32 *)priv->clocks, 1327 priv->nclocks)) { 1328 printf("Can't read \"clocks\" property\n"); 1329 ret = -EINVAL; 1330 goto exit; 1331 } 1332 1333 if (!dev_read_prop(dev, "clock-frequency", &len)) { 1334 printf("Can't find \"clock-frequency\" property\n"); 1335 ret = -EINVAL; 1336 goto exit; 1337 } 1338 1339 priv->frequencies = malloc(len); 1340 if (!priv->frequencies) { 1341 ret = -ENOMEM; 1342 goto exit; 1343 } 1344 1345 priv->nclocks = len / sizeof(u32); 1346 if (dev_read_u32_array(dev, "clock-frequency", priv->frequencies, 1347 priv->nclocks)) { 1348 printf("Can't read \"clock-frequency\" property\n"); 1349 ret = -EINVAL; 1350 goto exit; 1351 } 1352 1353 priv->reg = (fdt_addr_t)dev_read_addr_ptr(dev); 1354 1355 crypto_base = priv->reg; 1356 1357 return 0; 1358 exit: 1359 if (priv->clocks) 1360 free(priv->clocks); 1361 1362 if (priv->frequencies) 1363 free(priv->frequencies); 1364 1365 return ret; 1366 } 1367 1368 static int rockchip_crypto_probe(struct udevice *dev) 1369 { 1370 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 1371 struct rk_crypto_soc_data *sdata; 1372 int i, ret = 0; 1373 u32* clocks; 1374 1375 sdata = (struct rk_crypto_soc_data *)dev_get_driver_data(dev); 1376 priv->soc_data = sdata; 1377 1378 priv->hw_ctx = memalign(LLI_ADDR_ALIGN_SIZE, 1379 sizeof(struct rk_hash_ctx)); 1380 if (!priv->hw_ctx) 1381 return -ENOMEM; 1382 1383 ret = rockchip_get_clk(&priv->clk.dev); 1384 if (ret) { 1385 printf("Failed to get clk device, ret=%d\n", ret); 1386 return ret; 1387 } 1388 1389 clocks = (u32 *)priv->clocks; 1390 for (i = 0; i < priv->nclocks; i++) { 1391 priv->clk.id = clocks[i * 2 + 1]; 1392 ret = clk_set_rate(&priv->clk, priv->frequencies[i]); 1393 if (ret < 0) { 1394 printf("%s: Failed to set clk(%ld): ret=%d\n", 1395 __func__, priv->clk.id, ret); 1396 return ret; 1397 } 1398 } 1399 1400 hw_crypto_reset(); 1401 1402 return 0; 1403 } 1404 1405 static const struct rk_crypto_soc_data soc_data_base = { 1406 .capability = CRYPTO_MD5 | 1407 CRYPTO_SHA1 | 1408 CRYPTO_SHA256 | 1409 CRYPTO_SHA512 | 1410 CRYPTO_HMAC_MD5 | 1411 CRYPTO_HMAC_SHA1 | 1412 CRYPTO_HMAC_SHA256 | 1413 CRYPTO_HMAC_SHA512 | 1414 CRYPTO_RSA512 | 1415 CRYPTO_RSA1024 | 1416 CRYPTO_RSA2048 | 1417 CRYPTO_RSA3072 | 1418 CRYPTO_RSA4096 | 1419 CRYPTO_DES | 1420 CRYPTO_AES, 1421 }; 1422 1423 static const struct rk_crypto_soc_data soc_data_base_sm = { 1424 .capability = CRYPTO_MD5 | 1425 CRYPTO_SHA1 | 1426 CRYPTO_SHA256 | 1427 CRYPTO_SHA512 | 1428 CRYPTO_SM3 | 1429 CRYPTO_HMAC_MD5 | 1430 CRYPTO_HMAC_SHA1 | 1431 CRYPTO_HMAC_SHA256 | 1432 CRYPTO_HMAC_SHA512 | 1433 CRYPTO_HMAC_SM3 | 1434 CRYPTO_RSA512 | 1435 CRYPTO_RSA1024 | 1436 CRYPTO_RSA2048 | 1437 CRYPTO_RSA3072 | 1438 CRYPTO_RSA4096 | 1439 CRYPTO_DES | 1440 CRYPTO_AES | 1441 CRYPTO_SM4, 1442 }; 1443 1444 static const struct rk_crypto_soc_data soc_data_rk1808 = { 1445 .capability = CRYPTO_MD5 | 1446 CRYPTO_SHA1 | 1447 CRYPTO_SHA256 | 1448 CRYPTO_HMAC_MD5 | 1449 CRYPTO_HMAC_SHA1 | 1450 CRYPTO_HMAC_SHA256 | 1451 CRYPTO_RSA512 | 1452 CRYPTO_RSA1024 | 1453 CRYPTO_RSA2048 | 1454 CRYPTO_RSA3072 | 1455 CRYPTO_RSA4096, 1456 }; 1457 1458 static const struct udevice_id rockchip_crypto_ids[] = { 1459 { 1460 .compatible = "rockchip,px30-crypto", 1461 .data = (ulong)&soc_data_base 1462 }, 1463 { 1464 .compatible = "rockchip,rk1808-crypto", 1465 .data = (ulong)&soc_data_rk1808 1466 }, 1467 { 1468 .compatible = "rockchip,rk3308-crypto", 1469 .data = (ulong)&soc_data_base 1470 }, 1471 { 1472 .compatible = "rockchip,rv1126-crypto", 1473 .data = (ulong)&soc_data_base_sm 1474 }, 1475 { 1476 .compatible = "rockchip,rk3568-crypto", 1477 .data = (ulong)&soc_data_base_sm 1478 }, 1479 { } 1480 }; 1481 1482 U_BOOT_DRIVER(rockchip_crypto_v2) = { 1483 .name = "rockchip_crypto_v2", 1484 .id = UCLASS_CRYPTO, 1485 .of_match = rockchip_crypto_ids, 1486 .ops = &rockchip_crypto_ops, 1487 .probe = rockchip_crypto_probe, 1488 .ofdata_to_platdata = rockchip_crypto_ofdata_to_platdata, 1489 .priv_auto_alloc_size = sizeof(struct rockchip_crypto_priv), 1490 }; 1491