lkml.org 
[lkml]   [2020]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v1] mtd: spi-nor: Add support for Winbond w25q64jv spi flash
Hi Tudor,

On Mon, Jun 29, 2020 at 8:50 AM <Tudor.Ambarus@microchip.com> wrote:
>
> I'm reading the following datasheet:
> https://www.winbond.com/resource-files/w25q64jv%20revj%2003272018%20plus.pdf
>
> w25q64jvm (0xef7017) comes with QE bit set to a 0 state, but can be
> set to 1, so Quad mode can be supported. Would you please set SPI_NOR_DUAL_READ
> and SPI_NOR_QUAD_READ flags and test and see if Quad works? If all good,
> please specify in the commit message with which controller you did the tests.
>

Good point !

Unfortunately I'm using the spi controller on an imx6 ("fsl,imx51-ecspi") which
does not support dual or quad mode. So I cannot possibly test this :)

How would you like to proceed? Should I keep this as a private patch, and
wait until someone comes along who can test this on more capable
controller h/w ?

Or should I re-spin the patch without the flags?

Cheers,
Sven

\
 
 \ /
  Last update: 2020-06-29 21:43    [W:0.126 / U:8.472 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site