USBCFG_PPE
__raw_writel(r | USBCFG_ECE | USBCFG_PPE, base + AU1200_USBCFG);
r &= ~USBCFG_PPE; /* yes: disable HS PHY PLL */
__raw_writel(r | USBCFG_UCE | USBCFG_PPE, base + AU1200_USBCFG);
r &= ~USBCFG_PPE; /* yes: disable HS PHY PLL */