| /* | |
| * SPDX-License-Identifier: Apache-2.0 | |
| * | |
| * Copyright (c) 2021 Argentum Systems Ltd. | |
| */ | |
| &dmac { | |
| status = "okay"; | |
| }; | |
| &sercom1 { | |
| /* internally loop-back Tx and Rx on PAD0 */ | |
| rxpo = <0>; | |
| txpo = <0>; | |
| /* configure DMA channels for async operation */ | |
| dmas = <&dmac 0 0x03>, <&dmac 1 0x04>; | |
| dma-names = "rx", "tx"; | |
| }; | |
| &sercom3 { | |
| /* configure DMA channels for async operation */ | |
| dmas = <&dmac 10 0x07>, <&dmac 11 0x08>; | |
| dma-names = "rx", "tx"; | |
| }; | |
| &sercom4 { | |
| status = "disabled"; | |
| }; |