tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
157struct 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 */
199struct rk_cipher_ctx {
200 struct rk_crypto_info *dev;
201 unsigned int keylen;
202};
203
204struct rk_crypto_tmp {
205 struct rk_crypto_info *dev;
206 struct crypto_alg alg;
207};
208
209extern struct rk_crypto_tmp rk_ecb_aes_alg;
210extern struct rk_crypto_tmp rk_cbc_aes_alg;
211extern struct rk_crypto_tmp rk_ecb_des_alg;
212extern struct rk_crypto_tmp rk_cbc_des_alg;
213extern struct rk_crypto_tmp rk_ecb_des3_ede_alg;
214extern struct rk_crypto_tmp rk_cbc_des3_ede_alg;
215
216#endif