TG3_CPMU_CLCK_ORIDE
tw32(TG3_CPMU_CLCK_ORIDE, CPMU_CLCK_ORIDE_MAC_ORIDE_EN);
val = tr32(TG3_CPMU_CLCK_ORIDE);
tw32(TG3_CPMU_CLCK_ORIDE, val & ~CPMU_CLCK_ORIDE_MAC_ORIDE_EN);