read_cpu_clkdiv
div_val = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL0);
reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL2_RATIO_FULL1);
reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL0);
reg = read_cpu_clkdiv(CPU_DIVCLK_CTRL0);