HB_PLL_EXT_BYPASS
reg |= HB_PLL_EXT_BYPASS;
writel(reg | HB_PLL_EXT_BYPASS, hbclk->reg);
reg &= ~HB_PLL_EXT_BYPASS;
writel(reg | HB_PLL_EXT_BYPASS, hbclk->reg);
writel(reg | HB_PLL_EXT_BYPASS, hbclk->reg);
if (reg & HB_PLL_EXT_BYPASS)