Модуль управления памятью ввода-вывода IOMMU: список регистров

  Unused

  PC_IVLD_ENABLE

Enable PTW Cache invalid operation
0: No-operation or operation completed
1: Enable is invalid
After invalidation operation completed, the bit can clear 0 automatically.
After or Before Invalidation starts, there is no absolute relationship
between same address switch operation and Invalidation operation.

Команда U-Boot для чтения регистра

Bit fields structure

typedef union  iommu_pc_ivld_enable_reg
{
  struct
  {
   unsigned pc_ivld_enable : 1;
   unsigned unused0 : 31;
  } b;
   unsigned long w;
} IOMMU_PC_IVLD_ENABLE_REG