[PATCH 1/1 v3] driver:mtd:spi-nor: Add Micron quad I/O support
Marek Vasut
marex at denx.de
Tue Sep 30 06:38:40 PDT 2014
On Tuesday, September 30, 2014 at 04:47:39 AM, Bean Huo 霍斌斌 (beanhuo) wrote:
> 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 ?
Brian, am I bitching too much about pointless things ? Please stop me if you
think I do.
[...]
Best regards,
Marek Vasut
More information about the linux-mtd
mailing list