IPW_CSR_IO
CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK |
tmp = CSR_READ_4(sc, IPW_CSR_IO);
CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK |
(CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED));