RADIO_2064_REG044
pll_pwrup = (u8) read_radio_reg(pi, RADIO_2064_REG044);
or_radio_reg(pi, RADIO_2064_REG044, 0x07);
mod_radio_reg(pi, RADIO_2064_REG044, 0x0c, 0x0c);
write_radio_reg(pi, RADIO_2064_REG044, pll_pwrup);