drivers/crypto/amcc/crypto4xx_reg_def.h

   1 /**
   2  * AMCC SoC PPC4xx Crypto Driver
   3  *
   4  * Copyright (c) 2008 Applied Micro Circuits Corporation.
   5  * All rights reserved. James Hsiao <jhsiao@amcc.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * This filr defines the register set for Security Subsystem
  18  */
  19
  20 #ifndef __CRYPTO4XX_REG_DEF_H__
  21 #define __CRYPTO4XX_REG_DEF_H__
  22
  23 /* CRYPTO4XX Register offset */
  24 #define CRYPTO4XX_DESCRIPTOR                    0x00000000
  25 #define CRYPTO4XX_CTRL_STAT                     0x00000000
  26 #define CRYPTO4XX_SOURCE                        0x00000004
  27 #define CRYPTO4XX_DEST                          0x00000008
  28 #define CRYPTO4XX_SA                            0x0000000C
  29 #define CRYPTO4XX_SA_LENGTH                     0x00000010
  30 #define CRYPTO4XX_LENGTH                        0x00000014
  31
  32 #define CRYPTO4XX_PE_DMA_CFG                    0x00000040
  33 #define CRYPTO4XX_PE_DMA_STAT                   0x00000044
  34 #define CRYPTO4XX_PDR_BASE                      0x00000048
  35 #define CRYPTO4XX_RDR_BASE                      0x0000004c
  36 #define CRYPTO4XX_RING_SIZE                     0x00000050
  37 #define CRYPTO4XX_RING_CTRL                     0x00000054
  38 #define CRYPTO4XX_INT_RING_STAT                 0x00000058
  39 #define CRYPTO4XX_EXT_RING_STAT                 0x0000005c
  40 #define CRYPTO4XX_IO_THRESHOLD                  0x00000060
  41 #define CRYPTO4XX_GATH_RING_BASE                0x00000064
  42 #define CRYPTO4XX_SCAT_RING_BASE                0x00000068
  43 #define CRYPTO4XX_PART_RING_SIZE                0x0000006c
  44 #define CRYPTO4XX_PART_RING_CFG                 0x00000070
  45
  46 #define CRYPTO4XX_PDR_BASE_UADDR                0x00000080
  47 #define CRYPTO4XX_RDR_BASE_UADDR                0x00000084
  48 #define CRYPTO4XX_PKT_SRC_UADDR                 0x00000088
  49 #define CRYPTO4XX_PKT_DEST_UADDR                0x0000008c
  50 #define CRYPTO4XX_SA_UADDR                      0x00000090
  51 #define CRYPTO4XX_GATH_RING_BASE_UADDR          0x000000A0
  52 #define CRYPTO4XX_SCAT_RING_BASE_UADDR          0x000000A4
  53
  54 #define CRYPTO4XX_SEQ_RD                        0x00000408
  55 #define CRYPTO4XX_SEQ_MASK_RD                   0x0000040C
  56
  57 #define CRYPTO4XX_SA_CMD_0                      0x00010600
  58 #define CRYPTO4XX_SA_CMD_1                      0x00010604
  59
  60 #define CRYPTO4XX_STATE_PTR                     0x000106dc
  61 #define CRYPTO4XX_STATE_IV                      0x00010700
  62 #define CRYPTO4XX_STATE_HASH_BYTE_CNT_0         0x00010710
  63 #define CRYPTO4XX_STATE_HASH_BYTE_CNT_1         0x00010714
  64
  65 #define CRYPTO4XX_STATE_IDIGEST_0               0x00010718
  66 #define CRYPTO4XX_STATE_IDIGEST_1               0x0001071c
  67
  68 #define CRYPTO4XX_DATA_IN                       0x00018000
  69 #define CRYPTO4XX_DATA_OUT                      0x0001c000
  70
  71 #define CRYPTO4XX_INT_UNMASK_STAT               0x000500a0
  72 #define CRYPTO4XX_INT_MASK_STAT                 0x000500a4
  73 #define CRYPTO4XX_INT_CLR                       0x000500a4
  74 #define CRYPTO4XX_INT_EN                        0x000500a8
  75
  76 #define CRYPTO4XX_INT_PKA                       0x00000002
  77 #define CRYPTO4XX_INT_PDR_DONE                  0x00008000
  78 #define CRYPTO4XX_INT_MA_WR_ERR                 0x00020000
  79 #define CRYPTO4XX_INT_MA_RD_ERR                 0x00010000
  80 #define CRYPTO4XX_INT_PE_ERR                    0x00000200
  81 #define CRYPTO4XX_INT_USER_DMA_ERR              0x00000040
  82 #define CRYPTO4XX_INT_SLAVE_ERR                 0x00000010
  83 #define CRYPTO4XX_INT_MASTER_ERR                0x00000008
  84 #define CRYPTO4XX_INT_ERROR                     0x00030258
  85
  86 #define CRYPTO4XX_INT_CFG                       0x000500ac
  87 #define CRYPTO4XX_INT_DESCR_RD                  0x000500b0
  88 #define CRYPTO4XX_INT_DESCR_CNT                 0x000500b4
  89 #define CRYPTO4XX_INT_TIMEOUT_CNT               0x000500b8
  90
  91 #define CRYPTO4XX_DEVICE_CTRL                   0x00060080
  92 #define CRYPTO4XX_DEVICE_ID                     0x00060084
  93 #define CRYPTO4XX_DEVICE_INFO                   0x00060088
  94 #define CRYPTO4XX_DMA_USER_SRC                  0x00060094
  95 #define CRYPTO4XX_DMA_USER_DEST                 0x00060098
  96 #define CRYPTO4XX_DMA_USER_CMD                  0x0006009C
  97
  98 #define CRYPTO4XX_DMA_CFG                       0x000600d4
  99 #define CRYPTO4XX_BYTE_ORDER_CFG                0x000600d8
 100 #define CRYPTO4XX_ENDIAN_CFG                    0x000600d8
 101
 102 #define CRYPTO4XX_PRNG_STAT                     0x00070000
 103 #define CRYPTO4XX_PRNG_CTRL                     0x00070004
 104 #define CRYPTO4XX_PRNG_SEED_L                   0x00070008
 105 #define CRYPTO4XX_PRNG_SEED_H                   0x0007000c
 106
 107 #define CRYPTO4XX_PRNG_RES_0                    0x00070020
 108 #define CRYPTO4XX_PRNG_RES_1                    0x00070024
 109 #define CRYPTO4XX_PRNG_RES_2                    0x00070028
 110 #define CRYPTO4XX_PRNG_RES_3                    0x0007002C
 111
 112 #define CRYPTO4XX_PRNG_LFSR_L                   0x00070030
 113 #define CRYPTO4XX_PRNG_LFSR_H                   0x00070034
 114
 115 /**
 116  * Initialize CRYPTO ENGINE registers, and memory bases.
 117  */
 118 #define PPC4XX_PDR_POLL                         0x3ff
 119 #define PPC4XX_OUTPUT_THRESHOLD                 2
 120 #define PPC4XX_INPUT_THRESHOLD                  2
 121 #define PPC4XX_PD_SIZE                          6
 122 #define PPC4XX_CTX_DONE_INT                     0x2000
 123 #define PPC4XX_PD_DONE_INT                      0x8000
 124 #define PPC4XX_TMO_ERR_INT                      0x40000
 125 #define PPC4XX_BYTE_ORDER                       0x22222
 126 #define PPC4XX_INTERRUPT_CLR                    0x3ffff
 127 #define PPC4XX_PRNG_CTRL_AUTO_EN                0x3
 128 #define PPC4XX_DC_3DES_EN                       1
 129 #define PPC4XX_TRNG_EN                          0x00020000
 130 #define PPC4XX_INT_DESCR_CNT                    7
 131 #define PPC4XX_INT_TIMEOUT_CNT                  0
 132 #define PPC4XX_INT_TIMEOUT_CNT_REVB             0x3FF
 133 #define PPC4XX_INT_CFG                          1
 134 /**
 135  * all follow define are ad hoc
 136  */
 137 #define PPC4XX_RING_RETRY                       100
 138 #define PPC4XX_RING_POLL                        100
 139 #define PPC4XX_SDR_SIZE                         PPC4XX_NUM_SD
 140 #define PPC4XX_GDR_SIZE                         PPC4XX_NUM_GD
 141
 142 /**
 143   * Generic Security Association (SA) with all possible fields. These will
 144  * never likely used except for reference purpose. These structure format
 145  * can be not changed as the hardware expects them to be layout as defined.
 146  * Field can be removed or reduced but ordering can not be changed.
 147  */
 148 #define CRYPTO4XX_DMA_CFG_OFFSET                0x40
 149 union ce_pe_dma_cfg {
 150         struct {
 151                 u32 rsv:7;
 152                 u32 dir_host:1;
 153                 u32 rsv1:2;
 154                 u32 bo_td_en:1;
 155                 u32 dis_pdr_upd:1;
 156                 u32 bo_sgpd_en:1;
 157                 u32 bo_data_en:1;
 158                 u32 bo_sa_en:1;
 159                 u32 bo_pd_en:1;
 160                 u32 rsv2:4;
 161                 u32 dynamic_sa_en:1;
 162                 u32 pdr_mode:2;
 163                 u32 pe_mode:1;
 164                 u32 rsv3:5;
 165                 u32 reset_sg:1;
 166                 u32 reset_pdr:1;
 167                 u32 reset_pe:1;
 168         } bf;
 169     u32 w;
 170 } __attribute__((packed));
 171
 172 #define CRYPTO4XX_PDR_BASE_OFFSET               0x48
 173 #define CRYPTO4XX_RDR_BASE_OFFSET               0x4c
 174 #define CRYPTO4XX_RING_SIZE_OFFSET              0x50
 175 union ce_ring_size {
 176         struct {
 177                 u32 ring_offset:16;
 178                 u32 rsv:6;
 179                 u32 ring_size:10;
 180         } bf;
 181     u32 w;
 182 } __attribute__((packed));
 183
 184 #define CRYPTO4XX_RING_CONTROL_OFFSET           0x54
 185 union ce_ring_control {
 186         struct {
 187                 u32 continuous:1;
 188                 u32 rsv:5;
 189                 u32 ring_retry_divisor:10;
 190                 u32 rsv1:4;
 191                 u32 ring_poll_divisor:10;
 192         } bf;
 193     u32 w;
 194 } __attribute__((packed));
 195
 196 #define CRYPTO4XX_IO_THRESHOLD_OFFSET           0x60
 197 union ce_io_threshold {
 198         struct {
 199                 u32 rsv:6;
 200                 u32 output_threshold:10;
 201                 u32 rsv1:6;
 202                 u32 input_threshold:10;
 203         } bf;
 204     u32 w;
 205 } __attribute__((packed));
 206
 207 #define CRYPTO4XX_GATHER_RING_BASE_OFFSET       0x64
 208 #define CRYPTO4XX_SCATTER_RING_BASE_OFFSET      0x68
 209
 210 union ce_part_ring_size  {
 211         struct {
 212                 u32 sdr_size:16;
 213                 u32 gdr_size:16;
 214         } bf;
 215     u32 w;
 216 } __attribute__((packed));
 217
 218 #define MAX_BURST_SIZE_32                       0
 219 #define MAX_BURST_SIZE_64                       1
 220 #define MAX_BURST_SIZE_128                      2
 221 #define MAX_BURST_SIZE_256                      3
 222
 223 /* gather descriptor control length */
 224 struct gd_ctl_len {
 225         u32 len:16;
 226         u32 rsv:14;
 227         u32 done:1;
 228         u32 ready:1;
 229 } __attribute__((packed));
 230
 231 struct ce_gd {
 232         u32 ptr;
 233         struct gd_ctl_len ctl_len;
 234 } __attribute__((packed));
 235
 236 struct sd_ctl {
 237         u32 ctl:30;
 238         u32 done:1;
 239         u32 rdy:1;
 240 } __attribute__((packed));
 241
 242 struct ce_sd {
 243     u32 ptr;
 244         struct sd_ctl ctl;
 245 } __attribute__((packed));
 246
 247 #define PD_PAD_CTL_32   0x10
 248 #define PD_PAD_CTL_64   0x20
 249 #define PD_PAD_CTL_128  0x40
 250 #define PD_PAD_CTL_256  0x80
 251 union ce_pd_ctl {
 252         struct {
 253                 u32 pd_pad_ctl:8;
 254                 u32 status:8;
 255                 u32 next_hdr:8;
 256                 u32 rsv:2;
 257                 u32 cached_sa:1;
 258                 u32 hash_final:1;
 259                 u32 init_arc4:1;
 260                 u32 rsv1:1;
 261                 u32 pe_done:1;
 262                 u32 host_ready:1;
 263         } bf;
 264         u32 w;
 265 } __attribute__((packed));
 266 #define PD_CTL_HASH_FINAL       BIT(4)
 267 #define PD_CTL_PE_DONE          BIT(1)
 268 #define PD_CTL_HOST_READY       BIT(0)
 269
 270 union ce_pd_ctl_len {
 271         struct {
 272                 u32 bypass:8;
 273                 u32 pe_done:1;
 274                 u32 host_ready:1;
 275                 u32 rsv:2;
 276                 u32 pkt_len:20;
 277         } bf;
 278         u32 w;
 279 } __attribute__((packed));
 280
 281 struct ce_pd {
 282         union ce_pd_ctl   pd_ctl;
 283         u32 src;
 284         u32 dest;
 285         u32 sa;                 /* get from ctx->sa_dma_addr */
 286         u32 sa_len;             /* only if dynamic sa is used */
 287         union ce_pd_ctl_len pd_ctl_len;
 288
 289 } __attribute__((packed));
 290 #endif