PRCM_REG_USBHOST_BASE
#define PRCM_CLK_EN_USBHOST2 (PRCM_REG_USBHOST_BASE + 1)
#define PRCM_CLK_EN_USBHOST1 (PRCM_REG_USBHOST_BASE + 0)
#define PRCM_CLK_EN_USB (PRCM_REG_USBHOST_BASE + 0)