R92C_TCR
reg = rtwn_read_4(sc, R92C_TCR);
rtwn_write_4(sc, R92C_TCR, reg);
rtwn_write_4(sc, R92C_TCR, reg);
rtwn_write_4(sc, R92C_TCR, R92C_TCR_CFENDFORM | (1 << 12) | (1 << 13));
reg = urtwn_read_4(sc, R92C_TCR);
urtwn_write_4(sc, R92C_TCR, reg);
urtwn_write_4(sc, R92C_TCR, reg);