R92C_HIMR
rtwn_write_4(sc, R92C_HIMR, 0);
rtwn_write_4(sc, R92C_HIMR, 0x00000000);
rtwn_write_4(sc, R92C_HIMR, R92C_INT_ENABLE);
rtwn_write_4(sc, R92C_HIMR, R92C_INT_ENABLE);
rtwn_write_4(sc, R92C_HIMR, 0);
rtwn_write_4(sc, R92C_HIMR, 0xffffffff);