>> For Micron spi norflash,enables or disables quad I/O protocol ,which >> controled by EVCR(Enhanced Volatile Configuration Register) Quad I/O >> protocol bit 7.When EVCR bit 7 is reset to 0, the spi norflash will >> operate in quad I/O following the next WRITE ENHANCED VOLATILE >> CONFIGURATION command.
>You only do one WRITE ENHANCED VOLATILE CONFIGURATION command in the patch, so >this text doesn't add up. >Try something like this: >-->8-- >This patch adds code which enables Quad I/O mode on Micron SPI NOR flashes. >For Micron SPI NOR flash, enabling or disabling quad I/O protocol is controled >by EVCR (Enhanced Volatile Configuration Register), Quad I/O protocol bit 7. >When EVCR bit 7 is reset to 0, the SPI NOR flash will operate in quad I/O mode. >--8<-- >What do you think ? Perfect,I will modify my commit message and sumbit it again.thanks.