Fail with error if any of flashdisk partition assumptions are not met:
* uniform page size through the whole partition
* flashdisk starts at page boundary
* flashdisk ends at page boundary
Read-only flashdisks are not subject to above conditions because the
cache buffer is not used for read-only flashdisks.
The checks can be disabled via Kconfig option to save code space.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
Force cache-size to 0 and treat flashdisk as read-only when backing
partition has read-only flag set. This allows users to save RAM when the
application does not write to the flashdisk, e.g. when a predefined FAT
filesystem is used.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
Cache written data to avoid rewriting same flash page multiple times
when writing subsequent flash pages. The cache is used for reads to
account for reading not yet committed (i.e. dirty) page data. Speeding
up reads is not intention of this patch and therefore the read path
does not modify cache state.
Fixes: #30212
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
Use devicetree to obtain information for all zephyr flash disks.
Co-authored-by: Johann Fischer <johann.fischer@nordicsemi.no>
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This patch removes scenario which was testing deprecated
API behaviors. Needed as As flash_write_protection_set() was
deprecated and became no-operation.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Move disk driver interface to own header and
separate disk access interface and disk driver interface.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
The files disk_access_usdhc.c, disk_access_spi_sdhc.c,
disk_access_stm32_sdmmc.c, disk_access_ram.c and
disk_access_flash.c are actually drivers for block devices and SD/MMC
controllers. This patch moves this drivers to drivers/disk and
reworks the configuration so that the drivers are selected when
the corresponding node is enabled.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
