/* SPDX-License-Identifier: Apache-2.0 */ &dmac { status = "okay"; }; &sercom0 { status = "disabled"; }; dut: &sercom1 { /* Internally loop-back TX and RX on PAD0 */ rxpo = <0>; txpo = <0>; /* Configure DMA channels for async operation */ dmas = <&dmac 0 3>, <&dmac 1 4>; dma-names = "rx", "tx"; }; &sercom3 { /* configure DMA channels for async operation */ dmas = <&dmac 10 7>, <&dmac 11 8>; dma-names = "rx", "tx"; };