linux/drivers/crypto/mv_cesa.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __MV_CRYPTO_H__
   3#define __MV_CRYPTO_H__
   4
   5#define DIGEST_INITIAL_VAL_A    0xdd00
   6#define DIGEST_INITIAL_VAL_B    0xdd04
   7#define DIGEST_INITIAL_VAL_C    0xdd08
   8#define DIGEST_INITIAL_VAL_D    0xdd0c
   9#define DIGEST_INITIAL_VAL_E    0xdd10
  10#define DES_CMD_REG             0xdd58
  11
  12#define SEC_ACCEL_CMD           0xde00
  13#define SEC_CMD_EN_SEC_ACCL0    (1 << 0)
  14#define SEC_CMD_EN_SEC_ACCL1    (1 << 1)
  15#define SEC_CMD_DISABLE_SEC     (1 << 2)
  16
  17#define SEC_ACCEL_DESC_P0       0xde04
  18#define SEC_DESC_P0_PTR(x)      (x)
  19
  20#define SEC_ACCEL_DESC_P1       0xde14
  21#define SEC_DESC_P1_PTR(x)      (x)
  22
  23#define SEC_ACCEL_CFG           0xde08
  24#define SEC_CFG_STOP_DIG_ERR    (1 << 0)
  25#define SEC_CFG_CH0_W_IDMA      (1 << 7)
  26#define SEC_CFG_CH1_W_IDMA      (1 << 8)
  27#define SEC_CFG_ACT_CH0_IDMA    (1 << 9)
  28#define SEC_CFG_ACT_CH1_IDMA    (1 << 10)
  29
  30#define SEC_ACCEL_STATUS        0xde0c
  31#define SEC_ST_ACT_0            (1 << 0)
  32#define SEC_ST_ACT_1            (1 << 1)
  33
  34/*
  35 * FPGA_INT_STATUS looks like a FPGA leftover and is documented only in Errata
  36 * 4.12. It looks like that it was part of an IRQ-controller in FPGA and
  37 * someone forgot to remove  it while switching to the core and moving to
  38 * SEC_ACCEL_INT_STATUS.
  39 */
  40#define FPGA_INT_STATUS         0xdd68
  41#define SEC_ACCEL_INT_STATUS    0xde20
  42#define SEC_INT_AUTH_DONE       (1 << 0)
  43#define SEC_INT_DES_E_DONE      (1 << 1)
  44#define SEC_INT_AES_E_DONE      (1 << 2)
  45#define SEC_INT_AES_D_DONE      (1 << 3)
  46#define SEC_INT_ENC_DONE        (1 << 4)
  47#define SEC_INT_ACCEL0_DONE     (1 << 5)
  48#define SEC_INT_ACCEL1_DONE     (1 << 6)
  49#define SEC_INT_ACC0_IDMA_DONE  (1 << 7)
  50#define SEC_INT_ACC1_IDMA_DONE  (1 << 8)
  51
  52#define SEC_ACCEL_INT_MASK      0xde24
  53
  54#define AES_KEY_LEN     (8 * 4)
  55
  56struct sec_accel_config {
  57
  58        u32 config;
  59#define CFG_OP_MAC_ONLY         0
  60#define CFG_OP_CRYPT_ONLY       1
  61#define CFG_OP_MAC_CRYPT        2
  62#define CFG_OP_CRYPT_MAC        3
  63#define CFG_MACM_MD5            (4 << 4)
  64#define CFG_MACM_SHA1           (5 << 4)
  65#define CFG_MACM_HMAC_MD5       (6 << 4)
  66#define CFG_MACM_HMAC_SHA1      (7 << 4)
  67#define CFG_ENCM_DES            (1 << 8)
  68#define CFG_ENCM_3DES           (2 << 8)
  69#define CFG_ENCM_AES            (3 << 8)
  70#define CFG_DIR_ENC             (0 << 12)
  71#define CFG_DIR_DEC             (1 << 12)
  72#define CFG_ENC_MODE_ECB        (0 << 16)
  73#define CFG_ENC_MODE_CBC        (1 << 16)
  74#define CFG_3DES_EEE            (0 << 20)
  75#define CFG_3DES_EDE            (1 << 20)
  76#define CFG_AES_LEN_128         (0 << 24)
  77#define CFG_AES_LEN_192         (1 << 24)
  78#define CFG_AES_LEN_256         (2 << 24)
  79#define CFG_NOT_FRAG            (0 << 30)
  80#define CFG_FIRST_FRAG          (1 << 30)
  81#define CFG_LAST_FRAG           (2 << 30)
  82#define CFG_MID_FRAG            (3 << 30)
  83
  84        u32 enc_p;
  85#define ENC_P_SRC(x)            (x)
  86#define ENC_P_DST(x)            ((x) << 16)
  87
  88        u32 enc_len;
  89#define ENC_LEN(x)              (x)
  90
  91        u32 enc_key_p;
  92#define ENC_KEY_P(x)            (x)
  93
  94        u32 enc_iv;
  95#define ENC_IV_POINT(x)         ((x) << 0)
  96#define ENC_IV_BUF_POINT(x)     ((x) << 16)
  97
  98        u32 mac_src_p;
  99#define MAC_SRC_DATA_P(x)       (x)
 100#define MAC_SRC_TOTAL_LEN(x)    ((x) << 16)
 101
 102        u32 mac_digest;
 103#define MAC_DIGEST_P(x) (x)
 104#define MAC_FRAG_LEN(x) ((x) << 16)
 105        u32 mac_iv;
 106#define MAC_INNER_IV_P(x)       (x)
 107#define MAC_OUTER_IV_P(x)       ((x) << 16)
 108}__attribute__ ((packed));
 109        /*
 110         * /-----------\ 0
 111         * | ACCEL CFG |        4 * 8
 112         * |-----------| 0x20
 113         * | CRYPT KEY |        8 * 4
 114         * |-----------| 0x40
 115         * |  IV   IN  |        4 * 4
 116         * |-----------| 0x40 (inplace)
 117         * |  IV BUF   |        4 * 4
 118         * |-----------| 0x80
 119         * |  DATA IN  |        16 * x (max ->max_req_size)
 120         * |-----------| 0x80 (inplace operation)
 121         * |  DATA OUT |        16 * x (max ->max_req_size)
 122         * \-----------/ SRAM size
 123         */
 124
 125        /* Hashing memory map:
 126         * /-----------\ 0
 127         * | ACCEL CFG |        4 * 8
 128         * |-----------| 0x20
 129         * | Inner IV  |        5 * 4
 130         * |-----------| 0x34
 131         * | Outer IV  |        5 * 4
 132         * |-----------| 0x48
 133         * | Output BUF|        5 * 4
 134         * |-----------| 0x80
 135         * |  DATA IN  |        64 * x (max ->max_req_size)
 136         * \-----------/ SRAM size
 137         */
 138#define SRAM_CONFIG             0x00
 139#define SRAM_DATA_KEY_P         0x20
 140#define SRAM_DATA_IV            0x40
 141#define SRAM_DATA_IV_BUF        0x40
 142#define SRAM_DATA_IN_START      0x80
 143#define SRAM_DATA_OUT_START     0x80
 144
 145#define SRAM_HMAC_IV_IN         0x20
 146#define SRAM_HMAC_IV_OUT        0x34
 147#define SRAM_DIGEST_BUF         0x48
 148
 149#define SRAM_CFG_SPACE          0x80
 150
 151#endif
 152