41 lines
758 B
Plaintext
41 lines
758 B
Plaintext
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/*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Copyright (c) 2021 Argentum Systems Ltd.
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*/
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&dmac {
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status = "okay";
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};
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&sercom0 {
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/* configure DMA channels for async operation */
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dmas = <&dmac 0 0x01>, <&dmac 1 0x02>;
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dma-names = "rx", "tx";
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};
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&pinctrl {
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sercom2_default: sercom2_default {
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group1 {
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pinmux = <PA8D_SERCOM2_PAD0>;
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};
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};
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};
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&sercom2 {
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status = "okay";
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compatible = "atmel,sam0-uart";
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current-speed = <115200>;
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/* internally loop-back Tx and Rx on PAD0 */
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rxpo = <0>;
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txpo = <0>;
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/* configure DMA channels for async operation */
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dmas = <&dmac 0 0x05>, <&dmac 1 0x06>;
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dma-names = "rx", "tx";
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/* PAD0 must be configured to allow working loop-back */
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pinctrl-0 = <&sercom2_default>;
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pinctrl-names = "default";
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};
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