arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi


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&usb {
	dr_mode = "otg";
	g-rx-fifo-size = <256>;
	g-np-tx-fifo-size = <32>;
	/*
	 * According to dwc2 the sum of all device EP
	 * fifo sizes shouldn't exceed 3776 bytes.
	 */
	g-tx-fifo-size = <256 256 512 512 512 768 768>;
};