RCC_ETH12CKSELR
CFG_DIV(DIV_ETH1PTP, RCC_ETH12CKSELR, 4, 4, 0, NULL, DIV_NO_RDY),
CFG_DIV(DIV_ETH2PTP, RCC_ETH12CKSELR, 12, 4, 0, NULL, DIV_NO_RDY),
CFG_MUX(MUX_ETH1, RCC_ETH12CKSELR, 0, 2),
CFG_MUX(MUX_ETH2, RCC_ETH12CKSELR, 8, 2),