PLL1031X_MDIV_SHIFT
mdiv = (pll_con0 >> PLL1031X_MDIV_SHIFT) & PLL1031X_MDIV_MASK;
fvco *= (mdiv << PLL1031X_MDIV_SHIFT) + kdiv;
fvco >>= PLL1031X_MDIV_SHIFT;
old_mdiv = (pll_con0 >> PLL1031X_MDIV_SHIFT) & PLL1031X_MDIV_MASK;
con0 &= ~((PLL1031X_MDIV_MASK << PLL1031X_MDIV_SHIFT) |
con0 |= (rate->mdiv << PLL1031X_MDIV_SHIFT) |