Turn on current limit switch

ehci.cpp

 	USBPHY2_CTRL_CLR = USBPHY_CTRL_SFTRST | USBPHY_CTRL_CLKGATE;
 	USBPHY2_CTRL_SET = USBPHY_CTRL_ENUTMILEVEL2 | USBPHY_CTRL_ENUTMILEVEL3;
 	USBPHY2_PWD = 0;
-
+	#ifdef ARDUINO_TEENSY41
+	IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_40 = 5;
+	IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_40 = 0x0008; // slow speed, weak 150 ohm drive
+	GPIO8_GDIR |= 1<<26;
+	GPIO8_DR_SET = 1<<26;
+	#endif
 #endif
 	delay(10);