/* 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