USBPCR1_UHC_POWER
writel(readl(reg_usbpcr1) | USBPCR1_UHC_POWER, reg_usbpcr1);
writel(readl(reg_usbpcr1) & ~USBPCR1_UHC_POWER, reg_usbpcr1);
(readl(reg_usbpcr1) & USBPCR1_UHC_POWER);