U3P_U2FREQ_FMCR0
tmp = readl(fmreg + U3P_U2FREQ_FMCR0);
writel(tmp, fmreg + U3P_U2FREQ_FMCR0);
mtk_phy_set_bits(fmreg + U3P_U2FREQ_FMCR0, P2F_RG_FREQDET_EN);
mtk_phy_clear_bits(fmreg + U3P_U2FREQ_FMCR0, P2F_RG_FREQDET_EN);