summaryrefslogtreecommitdiffstats
path: root/drivers/crypto/rockchip/rk3288_crypto.h
blob: d5fb4013fb42a23d520009df3e9f7a524eb2a5f3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __RK3288_CRYPTO_H__
#define __RK3288_CRYPTO_H__

#include <crypto/aes.h>
#include <crypto/des.h>
#include <crypto/algapi.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <crypto/internal/hash.h>

#include <crypto/md5.h>
#include <crypto/sha.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)))

struct rk_crypto_info {
	struct device			*dev;
	struct clk			*aclk;
	struct clk			*hclk;
	struct clk			*sclk;
	struct clk			*dmaclk;
	struct reset_control		*rst;
	void __iomem			*reg;
	int				irq;
	struct crypto_queue		queue;
	struct tasklet_struct		queue_task;
	struct tasklet_struct		done_task;
	struct crypto_async_request	*async_req;
	int 				err;
	/* device lock */
	spinlock_t			lock;

	/* the public variable */
	struct scatterlist		*sg_src;
	struct scatterlist		*sg_dst;
	struct scatterlist		sg_tmp;
	struct scatterlist		*first;
	unsigned int			left_bytes;
	void				*addr_vir;
	int				aligned;
	int				align_size;
	size_t				nents;
	unsigned int			total;
	unsigned int			count;
	dma_addr_t			addr_in;
	dma_addr_t			addr_out;
	bool				busy;
	int (*start)(struct rk_crypto_info *dev);
	int (*update)(struct rk_crypto_info *dev);
	void (*complete)(struct crypto_async_request *base, int err);
	int (*enable_clk)(struct rk_crypto_info *dev);
	void (*disable_clk)(struct rk_crypto_info *dev);
	int (*load_data)(struct rk_crypto_info *dev,
			 struct scatterlist *sg_src,
			 struct scatterlist *sg_dst);
	void (*unload_data)(struct rk_crypto_info *dev);
	int (*enqueue)(struct rk_crypto_info *dev,
		       struct crypto_async_request *async_req);
};

/* the private variable of hash */
struct rk_ahash_ctx {
	struct rk_crypto_info		*dev;
	/* for fallback */
	struct crypto_ahash		*fallback_tfm;
};

/* the privete variable of hash for fallback */
struct rk_ahash_rctx {
	struct ahash_request		fallback_req;
	u32				mode;
};

/* the private variable of cipher */
struct rk_cipher_ctx {
	struct rk_crypto_info		*dev;
	unsigned int			keylen;
	u32				mode;
};

enum alg_type {
	ALG_TYPE_HASH,
	ALG_TYPE_CIPHER,
};

struct rk_crypto_tmp {
	struct rk_crypto_info		*dev;
	union {
		struct crypto_alg	crypto;
		struct ahash_alg	hash;
	} alg;
	enum alg_type			type;
};

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;

#endif