diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/rockchip/rk3288_crypto.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h new file mode 100644 index 0000000000..3aa03cbfb6 --- /dev/null +++ b/drivers/crypto/rockchip/rk3288_crypto.h @@ -0,0 +1,285 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __RK3288_CRYPTO_H__ +#define __RK3288_CRYPTO_H__ + +#include <crypto/aes.h> +#include <crypto/engine.h> +#include <crypto/internal/des.h> +#include <crypto/internal/hash.h> +#include <crypto/internal/skcipher.h> +#include <crypto/md5.h> +#include <crypto/sha1.h> +#include <crypto/sha2.h> +#include <linux/dma-mapping.h> +#include <linux/interrupt.h> +#include <linux/pm_runtime.h> +#include <linux/scatterlist.h> +#include <linux/types.h> + +#define _SBF(v, f) ((v) << (f)) + +/* Crypto control registers*/ +#define RK_CRYPTO_INTSTS 0x0000 +#define RK_CRYPTO_PKA_DONE_INT BIT(5) +#define RK_CRYPTO_HASH_DONE_INT BIT(4) +#define RK_CRYPTO_HRDMA_ERR_INT BIT(3) +#define RK_CRYPTO_HRDMA_DONE_INT BIT(2) +#define RK_CRYPTO_BCDMA_ERR_INT BIT(1) +#define RK_CRYPTO_BCDMA_DONE_INT BIT(0) + +#define RK_CRYPTO_INTENA 0x0004 +#define RK_CRYPTO_PKA_DONE_ENA BIT(5) +#define RK_CRYPTO_HASH_DONE_ENA BIT(4) +#define RK_CRYPTO_HRDMA_ERR_ENA BIT(3) +#define RK_CRYPTO_HRDMA_DONE_ENA BIT(2) +#define RK_CRYPTO_BCDMA_ERR_ENA BIT(1) +#define RK_CRYPTO_BCDMA_DONE_ENA BIT(0) + +#define RK_CRYPTO_CTRL 0x0008 +#define RK_CRYPTO_WRITE_MASK _SBF(0xFFFF, 16) +#define RK_CRYPTO_TRNG_FLUSH BIT(9) +#define RK_CRYPTO_TRNG_START BIT(8) +#define RK_CRYPTO_PKA_FLUSH BIT(7) +#define RK_CRYPTO_HASH_FLUSH BIT(6) +#define RK_CRYPTO_BLOCK_FLUSH BIT(5) +#define RK_CRYPTO_PKA_START BIT(4) +#define RK_CRYPTO_HASH_START BIT(3) +#define RK_CRYPTO_BLOCK_START BIT(2) +#define RK_CRYPTO_TDES_START BIT(1) +#define RK_CRYPTO_AES_START BIT(0) + +#define RK_CRYPTO_CONF 0x000c +/* HASH Receive DMA Address Mode: fix | increment */ +#define RK_CRYPTO_HR_ADDR_MODE BIT(8) +/* Block Transmit DMA Address Mode: fix | increment */ +#define RK_CRYPTO_BT_ADDR_MODE BIT(7) +/* Block Receive DMA Address Mode: fix | increment */ +#define RK_CRYPTO_BR_ADDR_MODE BIT(6) +#define RK_CRYPTO_BYTESWAP_HRFIFO BIT(5) +#define RK_CRYPTO_BYTESWAP_BTFIFO BIT(4) +#define RK_CRYPTO_BYTESWAP_BRFIFO BIT(3) +/* AES = 0 OR DES = 1 */ +#define RK_CRYPTO_DESSEL BIT(2) +#define RK_CYYPTO_HASHINSEL_INDEPENDENT_SOURCE _SBF(0x00, 0) +#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_INPUT _SBF(0x01, 0) +#define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_OUTPUT _SBF(0x02, 0) + +/* Block Receiving DMA Start Address Register */ +#define RK_CRYPTO_BRDMAS 0x0010 +/* Block Transmitting DMA Start Address Register */ +#define RK_CRYPTO_BTDMAS 0x0014 +/* Block Receiving DMA Length Register */ +#define RK_CRYPTO_BRDMAL 0x0018 +/* Hash Receiving DMA Start Address Register */ +#define RK_CRYPTO_HRDMAS 0x001c +/* Hash Receiving DMA Length Register */ +#define RK_CRYPTO_HRDMAL 0x0020 + +/* AES registers */ +#define RK_CRYPTO_AES_CTRL 0x0080 +#define RK_CRYPTO_AES_BYTESWAP_CNT BIT(11) +#define RK_CRYPTO_AES_BYTESWAP_KEY BIT(10) +#define RK_CRYPTO_AES_BYTESWAP_IV BIT(9) +#define RK_CRYPTO_AES_BYTESWAP_DO BIT(8) +#define RK_CRYPTO_AES_BYTESWAP_DI BIT(7) +#define RK_CRYPTO_AES_KEY_CHANGE BIT(6) +#define RK_CRYPTO_AES_ECB_MODE _SBF(0x00, 4) +#define RK_CRYPTO_AES_CBC_MODE _SBF(0x01, 4) +#define RK_CRYPTO_AES_CTR_MODE _SBF(0x02, 4) +#define RK_CRYPTO_AES_128BIT_key _SBF(0x00, 2) +#define RK_CRYPTO_AES_192BIT_key _SBF(0x01, 2) +#define RK_CRYPTO_AES_256BIT_key _SBF(0x02, 2) +/* Slave = 0 / fifo = 1 */ +#define RK_CRYPTO_AES_FIFO_MODE BIT(1) +/* Encryption = 0 , Decryption = 1 */ +#define RK_CRYPTO_AES_DEC BIT(0) + +#define RK_CRYPTO_AES_STS 0x0084 +#define RK_CRYPTO_AES_DONE BIT(0) + +/* AES Input Data 0-3 Register */ +#define RK_CRYPTO_AES_DIN_0 0x0088 +#define RK_CRYPTO_AES_DIN_1 0x008c +#define RK_CRYPTO_AES_DIN_2 0x0090 +#define RK_CRYPTO_AES_DIN_3 0x0094 + +/* AES output Data 0-3 Register */ +#define RK_CRYPTO_AES_DOUT_0 0x0098 +#define RK_CRYPTO_AES_DOUT_1 0x009c +#define RK_CRYPTO_AES_DOUT_2 0x00a0 +#define RK_CRYPTO_AES_DOUT_3 0x00a4 + +/* AES IV Data 0-3 Register */ +#define RK_CRYPTO_AES_IV_0 0x00a8 +#define RK_CRYPTO_AES_IV_1 0x00ac +#define RK_CRYPTO_AES_IV_2 0x00b0 +#define RK_CRYPTO_AES_IV_3 0x00b4 + +/* AES Key Data 0-3 Register */ +#define RK_CRYPTO_AES_KEY_0 0x00b8 +#define RK_CRYPTO_AES_KEY_1 0x00bc +#define RK_CRYPTO_AES_KEY_2 0x00c0 +#define RK_CRYPTO_AES_KEY_3 0x00c4 +#define RK_CRYPTO_AES_KEY_4 0x00c8 +#define RK_CRYPTO_AES_KEY_5 0x00cc +#define RK_CRYPTO_AES_KEY_6 0x00d0 +#define RK_CRYPTO_AES_KEY_7 0x00d4 + +/* des/tdes */ +#define RK_CRYPTO_TDES_CTRL 0x0100 +#define RK_CRYPTO_TDES_BYTESWAP_KEY BIT(8) +#define RK_CRYPTO_TDES_BYTESWAP_IV BIT(7) +#define RK_CRYPTO_TDES_BYTESWAP_DO BIT(6) +#define RK_CRYPTO_TDES_BYTESWAP_DI BIT(5) +/* 0: ECB, 1: CBC */ +#define RK_CRYPTO_TDES_CHAINMODE_CBC BIT(4) +/* TDES Key Mode, 0 : EDE, 1 : EEE */ +#define RK_CRYPTO_TDES_EEE BIT(3) +/* 0: DES, 1:TDES */ +#define RK_CRYPTO_TDES_SELECT BIT(2) +/* 0: Slave, 1:Fifo */ +#define RK_CRYPTO_TDES_FIFO_MODE BIT(1) +/* Encryption = 0 , Decryption = 1 */ +#define RK_CRYPTO_TDES_DEC BIT(0) + +#define RK_CRYPTO_TDES_STS 0x0104 +#define RK_CRYPTO_TDES_DONE BIT(0) + +#define RK_CRYPTO_TDES_DIN_0 0x0108 +#define RK_CRYPTO_TDES_DIN_1 0x010c +#define RK_CRYPTO_TDES_DOUT_0 0x0110 +#define RK_CRYPTO_TDES_DOUT_1 0x0114 +#define RK_CRYPTO_TDES_IV_0 0x0118 +#define RK_CRYPTO_TDES_IV_1 0x011c +#define RK_CRYPTO_TDES_KEY1_0 0x0120 +#define RK_CRYPTO_TDES_KEY1_1 0x0124 +#define RK_CRYPTO_TDES_KEY2_0 0x0128 +#define RK_CRYPTO_TDES_KEY2_1 0x012c +#define RK_CRYPTO_TDES_KEY3_0 0x0130 +#define RK_CRYPTO_TDES_KEY3_1 0x0134 + +/* HASH */ +#define RK_CRYPTO_HASH_CTRL 0x0180 +#define RK_CRYPTO_HASH_SWAP_DO BIT(3) +#define RK_CRYPTO_HASH_SWAP_DI BIT(2) +#define RK_CRYPTO_HASH_SHA1 _SBF(0x00, 0) +#define RK_CRYPTO_HASH_MD5 _SBF(0x01, 0) +#define RK_CRYPTO_HASH_SHA256 _SBF(0x02, 0) +#define RK_CRYPTO_HASH_PRNG _SBF(0x03, 0) + +#define RK_CRYPTO_HASH_STS 0x0184 +#define RK_CRYPTO_HASH_DONE BIT(0) + +#define RK_CRYPTO_HASH_MSG_LEN 0x0188 +#define RK_CRYPTO_HASH_DOUT_0 0x018c +#define RK_CRYPTO_HASH_DOUT_1 0x0190 +#define RK_CRYPTO_HASH_DOUT_2 0x0194 +#define RK_CRYPTO_HASH_DOUT_3 0x0198 +#define RK_CRYPTO_HASH_DOUT_4 0x019c +#define RK_CRYPTO_HASH_DOUT_5 0x01a0 +#define RK_CRYPTO_HASH_DOUT_6 0x01a4 +#define RK_CRYPTO_HASH_DOUT_7 0x01a8 + +#define CRYPTO_READ(dev, offset) \ + readl_relaxed(((dev)->reg + (offset))) +#define CRYPTO_WRITE(dev, offset, val) \ + writel_relaxed((val), ((dev)->reg + (offset))) + +#define RK_MAX_CLKS 4 + +/* + * struct rockchip_ip - struct for managing a list of RK crypto instance + * @dev_list: Used for doing a list of rk_crypto_info + * @lock: Control access to dev_list + * @dbgfs_dir: Debugfs dentry for statistic directory + * @dbgfs_stats: Debugfs dentry for statistic counters + */ +struct rockchip_ip { + struct list_head dev_list; + spinlock_t lock; /* Control access to dev_list */ + struct dentry *dbgfs_dir; + struct dentry *dbgfs_stats; +}; + +struct rk_clks { + const char *name; + unsigned long max; +}; + +struct rk_variant { + int num_clks; + struct rk_clks rkclks[RK_MAX_CLKS]; +}; + +struct rk_crypto_info { + struct list_head list; + struct device *dev; + struct clk_bulk_data *clks; + int num_clks; + struct reset_control *rst; + void __iomem *reg; + int irq; + const struct rk_variant *variant; + unsigned long nreq; + struct crypto_engine *engine; + struct completion complete; + int status; +}; + +/* the private variable of hash */ +struct rk_ahash_ctx { + /* for fallback */ + struct crypto_ahash *fallback_tfm; +}; + +/* the private variable of hash for fallback */ +struct rk_ahash_rctx { + struct rk_crypto_info *dev; + struct ahash_request fallback_req; + u32 mode; + int nrsg; +}; + +/* the private variable of cipher */ +struct rk_cipher_ctx { + unsigned int keylen; + u8 key[AES_MAX_KEY_SIZE]; + u8 iv[AES_BLOCK_SIZE]; + struct crypto_skcipher *fallback_tfm; +}; + +struct rk_cipher_rctx { + struct rk_crypto_info *dev; + u8 backup_iv[AES_BLOCK_SIZE]; + u32 mode; + struct skcipher_request fallback_req; // keep at the end +}; + +struct rk_crypto_tmp { + u32 type; + struct rk_crypto_info *dev; + union { + struct skcipher_engine_alg skcipher; + struct ahash_engine_alg hash; + } alg; + unsigned long stat_req; + unsigned long stat_fb; + unsigned long stat_fb_len; + unsigned long stat_fb_sglen; + unsigned long stat_fb_align; + unsigned long stat_fb_sgdiff; +}; + +extern struct rk_crypto_tmp rk_ecb_aes_alg; +extern struct rk_crypto_tmp rk_cbc_aes_alg; +extern struct rk_crypto_tmp rk_ecb_des_alg; +extern struct rk_crypto_tmp rk_cbc_des_alg; +extern struct rk_crypto_tmp rk_ecb_des3_ede_alg; +extern struct rk_crypto_tmp rk_cbc_des3_ede_alg; + +extern struct rk_crypto_tmp rk_ahash_sha1; +extern struct rk_crypto_tmp rk_ahash_sha256; +extern struct rk_crypto_tmp rk_ahash_md5; + +struct rk_crypto_info *get_rk_crypto(void); +#endif |