RT2860_H2M_MAILBOX_STATUS
RAL_WRITE(sc, RT2860_H2M_MAILBOX_STATUS, 0xffffffff);
tmp = RAL_READ(sc, RT2860_H2M_MAILBOX_STATUS);
RAL_WRITE(sc, RT2860_H2M_MAILBOX_STATUS, 0xffffffff);
run_write(sc, RT2860_H2M_MAILBOX_STATUS, 0xffffffff);