Le 23/03/2017 à 00:33, Cyrille Pitchen a écrit : > This patch extracts some chunks from spi_nor_scan() and moves them into > a new spi_nor_init() function. > > Indeed, spi_nor_init() regroups all the required SPI flash commands to be > sent to the SPI flash memory before performing any runtime operations > (Fast Read, Page Program, Sector Erase, ...). Hence spi_nor_init(): > 1) removes the flash protection if applicable for certain vendors. > 2) sets the Quad Enable bit, if needed, before using Quad SPI protocols. > 3) makes the memory enter its (stateful) 4-byte address mode, if needed, > for SPI flash memory > 128Mbits not supporting the 4-byte address > instruction set. > > spi_nor_scan() now ends by calling spi_nor_init() once the probe phase has > completed. Further patches could also use spi_nor_init() to implement the > mtd->_resume() handler for the spi-nor framework. > > Signed-off-by: Kamal Dasu <[email protected]> > Signed-off-by: Cyrille Pitchen <[email protected]>
Applied to github/spi-nor
