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zephyr/samples/subsys/usb/mass/boards/nrf52840dk_nrf52840.overlay

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samples: usb: mass: add support for littlefs file systems This allows mass storage exposure of a littlefs file system, specifically one on the SPI NOR flash of the nrf52840dk_nrf52840. In combination with littlefs-fuse this allows a host system to examine and change the local storage of a Zephyr application. Note that it is critical that all parameters of the file system match between what Zephyr is using and what littlefs-fuse is using. Inconsistencies can produce confusing results where each system sees different content. The README has been updated with a detailed example. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-04-19 11:58:08 +08:00
/*
* Copyright (c) 2019 Peter Bigot Consulting, LLC
*
* SPDX-License-Identifier: Apache-2.0
*/
/delete-node/ &storage_partition;
&mx25r64 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
samples: usb: mass: Switch to FIXED_PARTITION_ macros The commit switches flash area access from FLASH_AREA_ macros to FIXED_PARTITION_ macros and to usage of DTS node labels, to identify partitions, instead of label property. Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
2022-07-22 23:06:37 +08:00
storage_partition: partition@0 {
samples: usb: mass: add support for littlefs file systems This allows mass storage exposure of a littlefs file system, specifically one on the SPI NOR flash of the nrf52840dk_nrf52840. In combination with littlefs-fuse this allows a host system to examine and change the local storage of a Zephyr application. Note that it is critical that all parameters of the file system match between what Zephyr is using and what littlefs-fuse is using. Inconsistencies can produce confusing results where each system sees different content. The README has been updated with a detailed example. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-04-19 11:58:08 +08:00
label = "storage";
samples: mass: rework disk and fs configuration USB MSC sample has been expanded over time. Config overlays for RAM disk and flash disks were added. Board specific overlays followed. It was overlooked that they forced a specific configuration for the nrf52840dk_nrf52840 board, even if it was not explicitly desired (for example RAM-disk). This also caused strange behaviour during automatic MSC USB3CV tests (which explicit selects RAM-disk) so that nrf5340dk_nrf5340_cpuapp board passed test but nrf52840dk_nrf52840 failed. Rework disk and file system configuration, and initialization code, allow to use FAT file system on top of RAM disk. This sample can be built with none or one of two supported file systems, LittleFS or FATFS. Disk subsystem can be flash or RAM based. LittleFS only works with flash disk. There are four useful possibilities: - RAM disk without any file system for testing (default) - RAM disk with FAT file system - flash disk with FAT file system - flash disk with LittleFS Flash disk configurations is only available (as before) for nordic,qspi-nor compatible, but only need the device tree overlay per platform without a config overlay. This path also revises test cases. Remove invalid "flash" tag from depends_on key. Remove unnecessary gpio tag and exclude native platform. Resolves: #26275 Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
2020-11-24 21:06:37 +08:00
reg = <0x00000000 0x00020000>;
samples: usb: mass: add support for littlefs file systems This allows mass storage exposure of a littlefs file system, specifically one on the SPI NOR flash of the nrf52840dk_nrf52840. In combination with littlefs-fuse this allows a host system to examine and change the local storage of a Zephyr application. Note that it is critical that all parameters of the file system match between what Zephyr is using and what littlefs-fuse is using. Inconsistencies can produce confusing results where each system sees different content. The README has been updated with a detailed example. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-04-19 11:58:08 +08:00
};
};
};
samples: usb: mass: add disk description to overlays Add flash disk description to overlays. Specify custom flashdisk partition for fat fs api test to match the Kconfig values, because native posix storage partition is too small for FatFS filesystem. Co-authored-by: Johann Fischer <johann.fischer@nordicsemi.no> Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
2022-10-19 18:49:44 +08:00
/ {
msc_disk0 {
compatible = "zephyr,flash-disk";
partition = <&storage_partition>;
disk-name = "NAND";
cache-size = <4096>;
};
};