R92C_TRXFF_BNDY
rtwn_write_1(sc, R92C_TRXFF_BNDY, R92C_TX_PAGE_BOUNDARY);
rtwn_write_2(sc, R92C_TRXFF_BNDY + 2, 0x27ff);
urtwn_write_1(sc, R92C_TRXFF_BNDY, R92C_TX_PAGE_BOUNDARY);
urtwn_write_2(sc, R92C_TRXFF_BNDY + 2, 0x27ff);
urtwn_write_1(sc, R92C_TRXFF_BNDY, R88E_TX_PAGE_BOUNDARY);
urtwn_write_2(sc, R92C_TRXFF_BNDY + 2, 0x23ff);