R_PLL_CLKEN_CONTROL
value = readl(pll->base + R_PLL_CLKEN_CONTROL);
writel(value | (1 << pll->shift_enable), pll->base + R_PLL_CLKEN_CONTROL);
value = readl(pll->base + R_PLL_CLKEN_CONTROL);
writel(value & (~(1 << pll->shift_enable)), pll->base + R_PLL_CLKEN_CONTROL);