IPW_CSR_CTL
tmp = CSR_READ_4(sc, IPW_CSR_CTL);
CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY)
tmp = CSR_READ_4(sc, IPW_CSR_CTL);
CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT);
tmp = CSR_READ_4(sc, IPW_CSR_CTL);
CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY);