MCLK_CNTL__R300_DISABLE_MC_MCLKA
if ((tmp & MCLK_CNTL__R300_DISABLE_MC_MCLKA) &&
tmp &= ~MCLK_CNTL__R300_DISABLE_MC_MCLKA;
tmp &= ~(MCLK_CNTL__R300_DISABLE_MC_MCLKA |