TH_1520_MBOX_INFO7
u32 off = TH_1520_MBOX_INFO7;
info7_data = th1520_mbox_chan_read(cp, TH_1520_MBOX_INFO7, false);
th1520_mbox_chan_write(cp, 0x0, TH_1520_MBOX_INFO7, false);