PLL_CFG1
PHY_READ(sc, PLL_CFG1), PHY_READ(sc, PLL_CFG2), PHY_READ(sc, PLL_CFG3));
PHY_CLEAR(sc, PLL_CFG1, PLL_CFG1_CKIN_SEL);
PHY_WRITE(sc, PLL_CFG1, 0);
PHY_WRITE(sc, PLL_CFG1, inittab->pll_cfg1 & ~PLL_CFG1_CKIN_SEL);
PHY_SET(sc, PLL_CFG1, PLL_CFG1_PLLEN);
PHY_SET(sc, PLL_CFG1, PLL_CFG1_REG_OD1 | PLL_CFG1_REG_OD0);
PHY_SET(sc, PLL_CFG1, __SHIFTIN(b_out, PLL_CFG1_B_IN));