diff --git a/plat/imx/common/include/imx_clock.h b/plat/imx/common/include/imx_clock.h
index 27858bb..8558638 100644
--- a/plat/imx/common/include/imx_clock.h
+++ b/plat/imx/common/include/imx_clock.h
@@ -995,5 +995,8 @@
 void imx_clock_set_wdog_clk_root_bits(uint32_t wdog_clk_root_en_bits);
 void imx_clock_enable_wdog(unsigned int wdog_id);
 void imx_clock_disable_wdog(unsigned int wdog_id);
+void imx_clock_enable_usb(unsigned int usb_id);
+void imx_clock_disable_usb(unsigned int usb_id);
+void imx_clock_set_usb_clk_root_bits(uint32_t usb_clk_root_en_bits);
 
 #endif /* __IMX_CLOCK_H__ */