CS4280_CLKCR1
BA0WRITE4(sc, CS4280_CLKCR1, 0);
BA0WRITE4(sc, CS4280_CLKCR1, CLKCR1_PLLP);
mem = BA0READ4(sc, CS4280_CLKCR1) | CLKCR1_SWCE;
BA0WRITE4(sc, CS4280_CLKCR1, mem);
mem = BA0READ4(sc, CS4280_CLKCR1);
BA0WRITE4(sc, CS4280_CLKCR1, mem | CLKCR1_SWCE);
BA0WRITE4(sc, CS4280_CLKCR1, mem);