Re: [PATCH 1/1 v3] driver:mtd:spi-nor: Add Micron quad I/O support

From: Marek Vasut
Date: Tue Sep 30 2014 - 09:38:52 EST

On Tuesday, September 30, 2014 at 04:47:39 AM, Bean Huo éææ (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
> command.

You only do one WRITE ENHANCED VOLATILE CONFIGURATION command in the patch, so
this text doesn't add up.

Try something like this:
This patch adds code which enables Quad I/O mode on Micron SPI NOR

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.

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
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