1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /**
3  * AMCC SoC PPC4xx Crypto Driver
4  *
5  * Copyright (c) 2008 Applied Micro Circuits Corporation.
6  * All rights reserved. James Hsiao <jhsiao@amcc.com>
7  *
8  * This filr defines the register set for Security Subsystem
9  */
10 
11 #ifndef __CRYPTO4XX_REG_DEF_H__
12 #define __CRYPTO4XX_REG_DEF_H__
13 
14 /* CRYPTO4XX Register offset */
15 #define CRYPTO4XX_DESCRIPTOR			0x00000000
16 #define CRYPTO4XX_CTRL_STAT			0x00000000
17 #define CRYPTO4XX_SOURCE			0x00000004
18 #define CRYPTO4XX_DEST				0x00000008
19 #define CRYPTO4XX_SA				0x0000000C
20 #define CRYPTO4XX_SA_LENGTH			0x00000010
21 #define CRYPTO4XX_LENGTH			0x00000014
22 
23 #define CRYPTO4XX_PE_DMA_CFG			0x00000040
24 #define CRYPTO4XX_PE_DMA_STAT			0x00000044
25 #define CRYPTO4XX_PDR_BASE			0x00000048
26 #define CRYPTO4XX_RDR_BASE			0x0000004c
27 #define CRYPTO4XX_RING_SIZE			0x00000050
28 #define CRYPTO4XX_RING_CTRL			0x00000054
29 #define CRYPTO4XX_INT_RING_STAT			0x00000058
30 #define CRYPTO4XX_EXT_RING_STAT			0x0000005c
31 #define CRYPTO4XX_IO_THRESHOLD			0x00000060
32 #define CRYPTO4XX_GATH_RING_BASE		0x00000064
33 #define CRYPTO4XX_SCAT_RING_BASE		0x00000068
34 #define CRYPTO4XX_PART_RING_SIZE		0x0000006c
35 #define CRYPTO4XX_PART_RING_CFG		        0x00000070
36 
37 #define CRYPTO4XX_PDR_BASE_UADDR		0x00000080
38 #define CRYPTO4XX_RDR_BASE_UADDR		0x00000084
39 #define CRYPTO4XX_PKT_SRC_UADDR			0x00000088
40 #define CRYPTO4XX_PKT_DEST_UADDR		0x0000008c
41 #define CRYPTO4XX_SA_UADDR			0x00000090
42 #define CRYPTO4XX_GATH_RING_BASE_UADDR		0x000000A0
43 #define CRYPTO4XX_SCAT_RING_BASE_UADDR		0x000000A4
44 
45 #define CRYPTO4XX_SEQ_RD			0x00000408
46 #define CRYPTO4XX_SEQ_MASK_RD			0x0000040C
47 
48 #define CRYPTO4XX_SA_CMD_0			0x00010600
49 #define CRYPTO4XX_SA_CMD_1			0x00010604
50 
51 #define CRYPTO4XX_STATE_PTR			0x000106dc
52 #define CRYPTO4XX_STATE_IV			0x00010700
53 #define CRYPTO4XX_STATE_HASH_BYTE_CNT_0		0x00010710
54 #define CRYPTO4XX_STATE_HASH_BYTE_CNT_1		0x00010714
55 
56 #define CRYPTO4XX_STATE_IDIGEST_0		0x00010718
57 #define CRYPTO4XX_STATE_IDIGEST_1		0x0001071c
58 
59 #define CRYPTO4XX_DATA_IN			0x00018000
60 #define CRYPTO4XX_DATA_OUT			0x0001c000
61 
62 #define CRYPTO4XX_INT_UNMASK_STAT		0x000500a0
63 #define CRYPTO4XX_INT_MASK_STAT			0x000500a4
64 #define CRYPTO4XX_INT_CLR			0x000500a4
65 #define CRYPTO4XX_INT_EN			0x000500a8
66 
67 #define CRYPTO4XX_INT_PKA			0x00000002
68 #define CRYPTO4XX_INT_PDR_DONE			0x00008000
69 #define CRYPTO4XX_INT_MA_WR_ERR			0x00020000
70 #define CRYPTO4XX_INT_MA_RD_ERR			0x00010000
71 #define CRYPTO4XX_INT_PE_ERR			0x00000200
72 #define CRYPTO4XX_INT_USER_DMA_ERR		0x00000040
73 #define CRYPTO4XX_INT_SLAVE_ERR			0x00000010
74 #define CRYPTO4XX_INT_MASTER_ERR		0x00000008
75 #define CRYPTO4XX_INT_ERROR			0x00030258
76 
77 #define CRYPTO4XX_INT_CFG			0x000500ac
78 #define CRYPTO4XX_INT_DESCR_RD			0x000500b0
79 #define CRYPTO4XX_INT_DESCR_CNT			0x000500b4
80 #define CRYPTO4XX_INT_TIMEOUT_CNT		0x000500b8
81 
82 #define CRYPTO4XX_DEVICE_CTRL			0x00060080
83 #define CRYPTO4XX_DEVICE_ID			0x00060084
84 #define CRYPTO4XX_DEVICE_INFO			0x00060088
85 #define CRYPTO4XX_DMA_USER_SRC			0x00060094
86 #define CRYPTO4XX_DMA_USER_DEST			0x00060098
87 #define CRYPTO4XX_DMA_USER_CMD			0x0006009C
88 
89 #define CRYPTO4XX_DMA_CFG	        	0x000600d4
90 #define CRYPTO4XX_BYTE_ORDER_CFG 		0x000600d8
91 #define CRYPTO4XX_ENDIAN_CFG			0x000600d8
92 
93 #define CRYPTO4XX_PRNG_STAT			0x00070000
94 #define CRYPTO4XX_PRNG_STAT_BUSY		0x1
95 #define CRYPTO4XX_PRNG_CTRL			0x00070004
96 #define CRYPTO4XX_PRNG_SEED_L			0x00070008
97 #define CRYPTO4XX_PRNG_SEED_H			0x0007000c
98 
99 #define CRYPTO4XX_PRNG_RES_0			0x00070020
100 #define CRYPTO4XX_PRNG_RES_1			0x00070024
101 #define CRYPTO4XX_PRNG_RES_2			0x00070028
102 #define CRYPTO4XX_PRNG_RES_3			0x0007002C
103 
104 #define CRYPTO4XX_PRNG_LFSR_L			0x00070030
105 #define CRYPTO4XX_PRNG_LFSR_H			0x00070034
106 
107 /**
108  * Initialize CRYPTO ENGINE registers, and memory bases.
109  */
110 #define PPC4XX_PDR_POLL				0x3ff
111 #define PPC4XX_OUTPUT_THRESHOLD			2
112 #define PPC4XX_INPUT_THRESHOLD			2
113 #define PPC4XX_PD_SIZE				6
114 #define PPC4XX_CTX_DONE_INT			0x2000
115 #define PPC4XX_PD_DONE_INT			0x8000
116 #define PPC4XX_TMO_ERR_INT			0x40000
117 #define PPC4XX_BYTE_ORDER			0x22222
118 #define PPC4XX_INTERRUPT_CLR			0x3ffff
119 #define PPC4XX_PRNG_CTRL_AUTO_EN		0x3
120 #define PPC4XX_DC_3DES_EN			1
121 #define PPC4XX_TRNG_EN				0x00020000
122 #define PPC4XX_INT_DESCR_CNT			7
123 #define PPC4XX_INT_TIMEOUT_CNT			0
124 #define PPC4XX_INT_TIMEOUT_CNT_REVB		0x3FF
125 #define PPC4XX_INT_CFG				1
126 /**
127  * all follow define are ad hoc
128  */
129 #define PPC4XX_RING_RETRY			100
130 #define PPC4XX_RING_POLL			100
131 #define PPC4XX_SDR_SIZE				PPC4XX_NUM_SD
132 #define PPC4XX_GDR_SIZE				PPC4XX_NUM_GD
133 
134 /**
135   * Generic Security Association (SA) with all possible fields. These will
136  * never likely used except for reference purpose. These structure format
137  * can be not changed as the hardware expects them to be layout as defined.
138  * Field can be removed or reduced but ordering can not be changed.
139  */
140 #define CRYPTO4XX_DMA_CFG_OFFSET		0x40
141 union ce_pe_dma_cfg {
142 	struct {
143 		u32 rsv:7;
144 		u32 dir_host:1;
145 		u32 rsv1:2;
146 		u32 bo_td_en:1;
147 		u32 dis_pdr_upd:1;
148 		u32 bo_sgpd_en:1;
149 		u32 bo_data_en:1;
150 		u32 bo_sa_en:1;
151 		u32 bo_pd_en:1;
152 		u32 rsv2:4;
153 		u32 dynamic_sa_en:1;
154 		u32 pdr_mode:2;
155 		u32 pe_mode:1;
156 		u32 rsv3:5;
157 		u32 reset_sg:1;
158 		u32 reset_pdr:1;
159 		u32 reset_pe:1;
160 	} bf;
161     u32 w;
162 } __attribute__((packed));
163 
164 #define CRYPTO4XX_PDR_BASE_OFFSET		0x48
165 #define CRYPTO4XX_RDR_BASE_OFFSET		0x4c
166 #define CRYPTO4XX_RING_SIZE_OFFSET		0x50
167 union ce_ring_size {
168 	struct {
169 		u32 ring_offset:16;
170 		u32 rsv:6;
171 		u32 ring_size:10;
172 	} bf;
173     u32 w;
174 } __attribute__((packed));
175 
176 #define CRYPTO4XX_RING_CONTROL_OFFSET		0x54
177 union ce_ring_control {
178 	struct {
179 		u32 continuous:1;
180 		u32 rsv:5;
181 		u32 ring_retry_divisor:10;
182 		u32 rsv1:4;
183 		u32 ring_poll_divisor:10;
184 	} bf;
185     u32 w;
186 } __attribute__((packed));
187 
188 #define CRYPTO4XX_IO_THRESHOLD_OFFSET		0x60
189 union ce_io_threshold {
190 	struct {
191 		u32 rsv:6;
192 		u32 output_threshold:10;
193 		u32 rsv1:6;
194 		u32 input_threshold:10;
195 	} bf;
196     u32 w;
197 } __attribute__((packed));
198 
199 #define CRYPTO4XX_GATHER_RING_BASE_OFFSET	0x64
200 #define CRYPTO4XX_SCATTER_RING_BASE_OFFSET	0x68
201 
202 union ce_part_ring_size  {
203 	struct {
204 		u32 sdr_size:16;
205 		u32 gdr_size:16;
206 	} bf;
207     u32 w;
208 } __attribute__((packed));
209 
210 #define MAX_BURST_SIZE_32			0
211 #define MAX_BURST_SIZE_64			1
212 #define MAX_BURST_SIZE_128			2
213 #define MAX_BURST_SIZE_256			3
214 
215 /* gather descriptor control length */
216 struct gd_ctl_len {
217 	u32 len:16;
218 	u32 rsv:14;
219 	u32 done:1;
220 	u32 ready:1;
221 } __attribute__((packed));
222 
223 struct ce_gd {
224 	u32 ptr;
225 	struct gd_ctl_len ctl_len;
226 } __attribute__((packed));
227 
228 struct sd_ctl {
229 	u32 ctl:30;
230 	u32 done:1;
231 	u32 rdy:1;
232 } __attribute__((packed));
233 
234 struct ce_sd {
235     u32 ptr;
236 	struct sd_ctl ctl;
237 } __attribute__((packed));
238 
239 #define PD_PAD_CTL_32	0x10
240 #define PD_PAD_CTL_64	0x20
241 #define PD_PAD_CTL_128	0x40
242 #define PD_PAD_CTL_256	0x80
243 union ce_pd_ctl {
244 	struct {
245 		u32 pd_pad_ctl:8;
246 		u32 status:8;
247 		u32 next_hdr:8;
248 		u32 rsv:2;
249 		u32 cached_sa:1;
250 		u32 hash_final:1;
251 		u32 init_arc4:1;
252 		u32 rsv1:1;
253 		u32 pe_done:1;
254 		u32 host_ready:1;
255 	} bf;
256 	u32 w;
257 } __attribute__((packed));
258 #define PD_CTL_HASH_FINAL	BIT(4)
259 #define PD_CTL_PE_DONE		BIT(1)
260 #define PD_CTL_HOST_READY	BIT(0)
261 
262 union ce_pd_ctl_len {
263 	struct {
264 		u32 bypass:8;
265 		u32 pe_done:1;
266 		u32 host_ready:1;
267 		u32 rsv:2;
268 		u32 pkt_len:20;
269 	} bf;
270 	u32 w;
271 } __attribute__((packed));
272 
273 struct ce_pd {
274 	union ce_pd_ctl   pd_ctl;
275 	u32 src;
276 	u32 dest;
277 	u32 sa;                 /* get from ctx->sa_dma_addr */
278 	u32 sa_len;             /* only if dynamic sa is used */
279 	union ce_pd_ctl_len pd_ctl_len;
280 
281 } __attribute__((packed));
282 #endif
283