6.4.11. MTD SPI driver for ST M25Pxx (and similar) serial flash chips

Additionally to the Linux bindings in dts/Bindings/mtd/jedec,spi-nor.txt the barebox driver has the following optional properties:

• use-large-blocksUse large blocks rather than the 4K blocks some devices

  support. 4K erase blocks do not work with UBIFS which needs a minimum erase block size of 15360 bytes. Also bigger sectors are faster to erase.