DMA_RB_CNTL
tmp = RREG32(DMA_RB_CNTL);
WREG32(DMA_RB_CNTL, tmp);
tmp = RREG32(DMA_RB_CNTL);
WREG32(DMA_RB_CNTL, tmp);
tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
rb_cntl = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, rb_cntl);
rb_cntl = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, rb_cntl);
WREG32(DMA_RB_CNTL + reg_offset, rb_cntl);
WREG32(DMA_RB_CNTL + reg_offset, rb_cntl | DMA_RB_ENABLE);
tmp = RREG32(DMA_RB_CNTL);
WREG32(DMA_RB_CNTL, tmp);
tmp = RREG32(DMA_RB_CNTL);
WREG32(DMA_RB_CNTL, tmp);
u32 rb_cntl = RREG32(DMA_RB_CNTL);
WREG32(DMA_RB_CNTL, rb_cntl);
WREG32(DMA_RB_CNTL, rb_cntl);
WREG32(DMA_RB_CNTL, rb_cntl | DMA_RB_ENABLE);
tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);