/* * Copyright (c) 2021 STMicroelectronics * * SPDX-License-Identifier: Apache-2.0 */ /* Arduino Header pins: MOSI:D11, MISO:D12 */ &spi1 { dmas = <&dma2 5 3 0x28440 0x03 &dma2 2 3 0x28480 0x03>; dma-names = "tx", "rx"; slow@0 { compatible = "test-spi-loopback-slow"; reg = <0>; spi-max-frequency = <500000>; }; fast@0 { compatible = "test-spi-loopback-fast"; reg = <0>; spi-max-frequency = <16000000>; }; }; &dma2 { status = "okay"; };