R92C_BWOPMODE
rtwn_write_1(sc, R92C_BWOPMODE,
rtwn_read_1(sc, R92C_BWOPMODE) & ~R92C_BWOPMODE_20MHZ);
rtwn_write_1(sc, R92C_BWOPMODE,
rtwn_read_1(sc, R92C_BWOPMODE) | R92C_BWOPMODE_20MHZ);
urtwn_write_1(sc, R92C_BWOPMODE,
urtwn_read_1(sc, R92C_BWOPMODE) & ~R92C_BWOPMODE_20MHZ);
urtwn_write_1(sc, R92C_BWOPMODE,
urtwn_read_1(sc, R92C_BWOPMODE) | R92C_BWOPMODE_20MHZ);