It was possible to have enable flash module while no flash driver
implementation was enabled. This cause coverity issues and unnecessary
initialization call.
This pat introduce FLASH_HAS_DRIVER_ENABLED Kconfig keyword which is
selected once any flash driver is enabled. flash_map switch its
dependency to this keyword.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Convert Atmel SAM0 flash driver to use device tree to get the flash
controller name and base address.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The SAM0 has a 64 byte page (the programing unit) with 4 pages to a
row (the erase unit). This driver implements a read/modify/write to
emulate the byte level writes used by NFFS.
Signed-off-by: Michael Hope <mlhx@google.com>
Andrzej Puzdrowski