HEVC_STREAM_FIFO_CTL
amvdec_write_dos_bits(core, HEVC_STREAM_FIFO_CTL, BIT(29));
amvdec_write_dos(core, HEVC_STREAM_FIFO_CTL,
amvdec_read_dos(core, HEVC_STREAM_FIFO_CTL) | BIT(29));