PLLCTRL0
clks[pll] = mxs_clk_pll("pll", "ref_xtal", PLLCTRL0, 16, 480000000);
clks[usb_phy] = clk_register_gate(NULL, "usb_phy", "pll", 0, PLLCTRL0, 18, 0, &mxs_lock);
tdfx_outl(par, PLLCTRL0, reg->vidpll);