   sst_dac_write(DACREG_ICS_PLLRMA, 0x0); /* f0 */   m_clk0_0 = sst_dac_read(DACREG_ICS_PLLDATA);   n_clk0_0 = sst_dac_read(DACREG_ICS_PLLDATA);   sst_dac_write(DACREG_ICS_PLLRMA, 0x0); /* f0 */   m_clk0_0 = sst_dac_read(DACREG_ICS_PLLDATA);   n_clk0_0 = sst_dac_read(DACREG_ICS_PLLDATA);   sst_dac_write(DACREG_ICS_PLLRMA, 0x