/* * Copyright (c) 2022-2023 Nordic Semiconductor ASA * * SPDX-License-Identifier: Apache-2.0 */ /delete-node/ &mx25r64; &qspi { status = "disabled"; }; /* The mx25, on nrf52840dk/nrf52840, uses pins for spi0, spi1, spi2 and spi3 * to provide quad-spi feature. In individual specifications each of the spi * notes define own clock source (SCK), but spi2 shares the same clock source * as qspi configuration, which is pin (0,19). That is why spi2 is used here * to communicate with mx25, when qspi is not used, to avoid rerouting clock * pin. */ &spi2 { compatible = "nordic,nrf-spi"; status = "okay"; cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>; pinctrl-0 = <&spi2_default>; pinctrl-1 = <&spi2_sleep>; pinctrl-names = "default", "sleep"; mx25r64: mx25r6435f@0 { compatible = "jedec,spi-nor"; reg = <0>; spi-max-frequency = <8000000>; jedec-id = [c2 28 17]; size = <67108864>; wp-gpios = <&gpio0 22 GPIO_ACTIVE_LOW>; hold-gpios = <&gpio0 23 GPIO_ACTIVE_LOW>; }; };