Регистры Allwinner H616
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T_D_Q_ASYMM_CTRL
10.1.4. Task Descriptor Queue Asymmetric Control

Криптосистема : список регистров

  Unused

Bits 31 : 21

  PKC_ALG_MODE

Bits 20 : 16
R/W
0x0

PKC algorithm mode

For modular computation:
00000: modular exponent(RSA)
00001: modular add
00010: modular minus
00011: modular multiplication
others: reserved

For ECC:
00000: point add
00001: point double
00010: point multiplication
00011: point verification
00100: encryption
00101: decryption
00110: sign
00111: sign verify
others: reserved

  Unused

Bits 15 : 8

  ASYM_ALG_OPER

Bits 7 : 0
R/W
0x0

Asymmetric algorithm operation width field
It indicates how much width this request apply, as words.

Команда U-Boot для чтения регистра

md 1904000 1
md 1904800 1

Bit fields structure 

typedef union  t_d_q_asymm_ctrl
{
  struct
  {
   unsigned asym_alg_oper : 8;
   unsigned unused0 : 8;
   unsigned pkc_alg_mode : 5;
   unsigned unused1 : 11;
  } b;
   unsigned long w;
} T_D_Q_ASYMM_CTRL
Allwinner H616 Manual