1 #ifndef __RK3288_CRYPTO_H__
2 #define __RK3288_CRYPTO_H__
3 
4 #include <crypto/aes.h>
5 #include <crypto/des.h>
6 #include <crypto/algapi.h>
7 #include <linux/interrupt.h>
8 #include <linux/delay.h>
9 
10 #define _SBF(v, f)			((v) << (f))
11 
12 /* Crypto control registers*/
13 #define RK_CRYPTO_INTSTS		0x0000
14 #define RK_CRYPTO_PKA_DONE_INT		BIT(5)
15 #define RK_CRYPTO_HASH_DONE_INT		BIT(4)
16 #define RK_CRYPTO_HRDMA_ERR_INT		BIT(3)
17 #define RK_CRYPTO_HRDMA_DONE_INT	BIT(2)
18 #define RK_CRYPTO_BCDMA_ERR_INT		BIT(1)
19 #define RK_CRYPTO_BCDMA_DONE_INT	BIT(0)
20 
21 #define RK_CRYPTO_INTENA		0x0004
22 #define RK_CRYPTO_PKA_DONE_ENA		BIT(5)
23 #define RK_CRYPTO_HASH_DONE_ENA		BIT(4)
24 #define RK_CRYPTO_HRDMA_ERR_ENA		BIT(3)
25 #define RK_CRYPTO_HRDMA_DONE_ENA	BIT(2)
26 #define RK_CRYPTO_BCDMA_ERR_ENA		BIT(1)
27 #define RK_CRYPTO_BCDMA_DONE_ENA	BIT(0)
28 
29 #define RK_CRYPTO_CTRL			0x0008
30 #define RK_CRYPTO_WRITE_MASK		_SBF(0xFFFF, 16)
31 #define RK_CRYPTO_TRNG_FLUSH		BIT(9)
32 #define RK_CRYPTO_TRNG_START		BIT(8)
33 #define RK_CRYPTO_PKA_FLUSH		BIT(7)
34 #define RK_CRYPTO_HASH_FLUSH		BIT(6)
35 #define RK_CRYPTO_BLOCK_FLUSH		BIT(5)
36 #define RK_CRYPTO_PKA_START		BIT(4)
37 #define RK_CRYPTO_HASH_START		BIT(3)
38 #define RK_CRYPTO_BLOCK_START		BIT(2)
39 #define RK_CRYPTO_TDES_START		BIT(1)
40 #define RK_CRYPTO_AES_START		BIT(0)
41 
42 #define RK_CRYPTO_CONF			0x000c
43 /* HASH Receive DMA Address Mode:   fix | increment */
44 #define RK_CRYPTO_HR_ADDR_MODE		BIT(8)
45 /* Block Transmit DMA Address Mode: fix | increment */
46 #define RK_CRYPTO_BT_ADDR_MODE		BIT(7)
47 /* Block Receive DMA Address Mode:  fix | increment */
48 #define RK_CRYPTO_BR_ADDR_MODE		BIT(6)
49 #define RK_CRYPTO_BYTESWAP_HRFIFO	BIT(5)
50 #define RK_CRYPTO_BYTESWAP_BTFIFO	BIT(4)
51 #define RK_CRYPTO_BYTESWAP_BRFIFO	BIT(3)
52 /* AES = 0 OR DES = 1 */
53 #define RK_CRYPTO_DESSEL				BIT(2)
54 #define RK_CYYPTO_HASHINSEL_INDEPENDENT_SOURCE		_SBF(0x00, 0)
55 #define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_INPUT		_SBF(0x01, 0)
56 #define RK_CYYPTO_HASHINSEL_BLOCK_CIPHER_OUTPUT		_SBF(0x02, 0)
57 
58 /* Block Receiving DMA Start Address Register */
59 #define RK_CRYPTO_BRDMAS		0x0010
60 /* Block Transmitting DMA Start Address Register */
61 #define RK_CRYPTO_BTDMAS		0x0014
62 /* Block Receiving DMA Length Register */
63 #define RK_CRYPTO_BRDMAL		0x0018
64 /* Hash Receiving DMA Start Address Register */
65 #define RK_CRYPTO_HRDMAS		0x001c
66 /* Hash Receiving DMA Length Register */
67 #define RK_CRYPTO_HRDMAL		0x0020
68 
69 /* AES registers */
70 #define RK_CRYPTO_AES_CTRL			  0x0080
71 #define RK_CRYPTO_AES_BYTESWAP_CNT	BIT(11)
72 #define RK_CRYPTO_AES_BYTESWAP_KEY	BIT(10)
73 #define RK_CRYPTO_AES_BYTESWAP_IV	BIT(9)
74 #define RK_CRYPTO_AES_BYTESWAP_DO	BIT(8)
75 #define RK_CRYPTO_AES_BYTESWAP_DI	BIT(7)
76 #define RK_CRYPTO_AES_KEY_CHANGE	BIT(6)
77 #define RK_CRYPTO_AES_ECB_MODE		_SBF(0x00, 4)
78 #define RK_CRYPTO_AES_CBC_MODE		_SBF(0x01, 4)
79 #define RK_CRYPTO_AES_CTR_MODE		_SBF(0x02, 4)
80 #define RK_CRYPTO_AES_128BIT_key	_SBF(0x00, 2)
81 #define RK_CRYPTO_AES_192BIT_key	_SBF(0x01, 2)
82 #define RK_CRYPTO_AES_256BIT_key	_SBF(0x02, 2)
83 /* Slave = 0 / fifo = 1 */
84 #define RK_CRYPTO_AES_FIFO_MODE		BIT(1)
85 /* Encryption = 0 , Decryption = 1 */
86 #define RK_CRYPTO_AES_DEC		BIT(0)
87 
88 #define RK_CRYPTO_AES_STS		0x0084
89 #define RK_CRYPTO_AES_DONE		BIT(0)
90 
91 /* AES Input Data 0-3 Register */
92 #define RK_CRYPTO_AES_DIN_0		0x0088
93 #define RK_CRYPTO_AES_DIN_1		0x008c
94 #define RK_CRYPTO_AES_DIN_2		0x0090
95 #define RK_CRYPTO_AES_DIN_3		0x0094
96 
97 /* AES output Data 0-3 Register */
98 #define RK_CRYPTO_AES_DOUT_0		0x0098
99 #define RK_CRYPTO_AES_DOUT_1		0x009c
100 #define RK_CRYPTO_AES_DOUT_2		0x00a0
101 #define RK_CRYPTO_AES_DOUT_3		0x00a4
102 
103 /* AES IV Data 0-3 Register */
104 #define RK_CRYPTO_AES_IV_0		0x00a8
105 #define RK_CRYPTO_AES_IV_1		0x00ac
106 #define RK_CRYPTO_AES_IV_2		0x00b0
107 #define RK_CRYPTO_AES_IV_3		0x00b4
108 
109 /* AES Key Data 0-3 Register */
110 #define RK_CRYPTO_AES_KEY_0		0x00b8
111 #define RK_CRYPTO_AES_KEY_1		0x00bc
112 #define RK_CRYPTO_AES_KEY_2		0x00c0
113 #define RK_CRYPTO_AES_KEY_3		0x00c4
114 #define RK_CRYPTO_AES_KEY_4		0x00c8
115 #define RK_CRYPTO_AES_KEY_5		0x00cc
116 #define RK_CRYPTO_AES_KEY_6		0x00d0
117 #define RK_CRYPTO_AES_KEY_7		0x00d4
118 
119 /* des/tdes */
120 #define RK_CRYPTO_TDES_CTRL		0x0100
121 #define RK_CRYPTO_TDES_BYTESWAP_KEY	BIT(8)
122 #define RK_CRYPTO_TDES_BYTESWAP_IV	BIT(7)
123 #define RK_CRYPTO_TDES_BYTESWAP_DO	BIT(6)
124 #define RK_CRYPTO_TDES_BYTESWAP_DI	BIT(5)
125 /* 0: ECB, 1: CBC */
126 #define RK_CRYPTO_TDES_CHAINMODE_CBC	BIT(4)
127 /* TDES Key Mode, 0 : EDE, 1 : EEE */
128 #define RK_CRYPTO_TDES_EEE		BIT(3)
129 /* 0: DES, 1:TDES */
130 #define RK_CRYPTO_TDES_SELECT		BIT(2)
131 /* 0: Slave, 1:Fifo */
132 #define RK_CRYPTO_TDES_FIFO_MODE	BIT(1)
133 /* Encryption = 0 , Decryption = 1 */
134 #define RK_CRYPTO_TDES_DEC		BIT(0)
135 
136 #define RK_CRYPTO_TDES_STS		0x0104
137 #define RK_CRYPTO_TDES_DONE		BIT(0)
138 
139 #define RK_CRYPTO_TDES_DIN_0		0x0108
140 #define RK_CRYPTO_TDES_DIN_1		0x010c
141 #define RK_CRYPTO_TDES_DOUT_0		0x0110
142 #define RK_CRYPTO_TDES_DOUT_1		0x0114
143 #define RK_CRYPTO_TDES_IV_0		0x0118
144 #define RK_CRYPTO_TDES_IV_1		0x011c
145 #define RK_CRYPTO_TDES_KEY1_0		0x0120
146 #define RK_CRYPTO_TDES_KEY1_1		0x0124
147 #define RK_CRYPTO_TDES_KEY2_0		0x0128
148 #define RK_CRYPTO_TDES_KEY2_1		0x012c
149 #define RK_CRYPTO_TDES_KEY3_0		0x0130
150 #define RK_CRYPTO_TDES_KEY3_1		0x0134
151 
152 #define CRYPTO_READ(dev, offset)		  \
153 		readl_relaxed(((dev)->reg + (offset)))
154 #define CRYPTO_WRITE(dev, offset, val)	  \
155 		writel_relaxed((val), ((dev)->reg + (offset)))
156 
157 struct rk_crypto_info {
158 	struct device			*dev;
159 	struct clk			*aclk;
160 	struct clk			*hclk;
161 	struct clk			*sclk;
162 	struct clk			*dmaclk;
163 	struct reset_control		*rst;
164 	void __iomem			*reg;
165 	int				irq;
166 	struct crypto_queue		queue;
167 	struct tasklet_struct		crypto_tasklet;
168 	struct ablkcipher_request	*ablk_req;
169 	/* device lock */
170 	spinlock_t			lock;
171 
172 	/* the public variable */
173 	struct scatterlist		*sg_src;
174 	struct scatterlist		*sg_dst;
175 	struct scatterlist		sg_tmp;
176 	struct scatterlist		*first;
177 	unsigned int			left_bytes;
178 	void				*addr_vir;
179 	int				aligned;
180 	int				align_size;
181 	size_t				nents;
182 	unsigned int			total;
183 	unsigned int			count;
184 	u32				mode;
185 	dma_addr_t			addr_in;
186 	dma_addr_t			addr_out;
187 	int (*start)(struct rk_crypto_info *dev);
188 	int (*update)(struct rk_crypto_info *dev);
189 	void (*complete)(struct rk_crypto_info *dev, int err);
190 	int (*enable_clk)(struct rk_crypto_info *dev);
191 	void (*disable_clk)(struct rk_crypto_info *dev);
192 	int (*load_data)(struct rk_crypto_info *dev,
193 			 struct scatterlist *sg_src,
194 			 struct scatterlist *sg_dst);
195 	void (*unload_data)(struct rk_crypto_info *dev);
196 };
197 
198 /* the private variable of cipher */
199 struct rk_cipher_ctx {
200 	struct rk_crypto_info		*dev;
201 	unsigned int			keylen;
202 };
203 
204 struct rk_crypto_tmp {
205 	struct rk_crypto_info *dev;
206 	struct crypto_alg alg;
207 };
208 
209 extern struct rk_crypto_tmp rk_ecb_aes_alg;
210 extern struct rk_crypto_tmp rk_cbc_aes_alg;
211 extern struct rk_crypto_tmp rk_ecb_des_alg;
212 extern struct rk_crypto_tmp rk_cbc_des_alg;
213 extern struct rk_crypto_tmp rk_ecb_des3_ede_alg;
214 extern struct rk_crypto_tmp rk_cbc_des3_ede_alg;
215 
216 #endif
217