R128_CLOCK_CNTL_INDEX
OUTREG8(R128_CLOCK_CNTL_INDEX, index & 0x3f);
OUTREG8(R128_CLOCK_CNTL_INDEX, ((index) & 0x3f) | R128_PLL_WR_EN);
uint32 clockCntlIndex = INREG(R128_CLOCK_CNTL_INDEX);
OUTREG(R128_CLOCK_CNTL_INDEX, clockCntlIndex);
OUTREGM(R128_CLOCK_CNTL_INDEX, R128_PLL_DIV_SEL, R128_PLL_DIV_SEL);