uboot/u-boot-stm32mp-2020.01/arch/arm/dts/bcm283x-rpi-usb-otg.dtsi

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// SPDX-License-Identifier: GPL-2.0
&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>;
};