CCU_PLL_CTL_CLKF_MASK
nf = FIELD_GET(CCU_PLL_CTL_CLKF_MASK, val) + 1;
mask = CCU_PLL_CTL_CLKR_MASK | CCU_PLL_CTL_CLKF_MASK |
FIELD_PREP(CCU_PLL_CTL_CLKF_MASK, nf - 1) |
mask = CCU_PLL_CTL_CLKR_MASK | CCU_PLL_CTL_CLKF_MASK |
FIELD_PREP(CCU_PLL_CTL_CLKF_MASK, nf - 1) |
CCU_PLL_CTL_CLKF_MASK, 1, CCU_PLL_NF_MAX),
((CCU_PLL_CTL_CLKF_MASK >> (CCU_PLL_CTL_CLKF_FLD + 1)) + 1)