Support for Winbond W25Q256JVFQ

[Michael Fuckner]

Hi,

I noticed W25Q256FV is supported by flashrom, but I'd like to reflash 
W25Q256JVFQ (used by Supermicro X11DAi-N). It also uses ID 4019, but 
does not support QPI.

My programmer is a custom board connected to a Raspi3 using SPI 
interface. Any idea how to get it running?

Regards,
  Michael!

[Nico Huber]

Hi Michael,

On 18.12.2017 20:18, Michael Fuckner wrote:
> Hi,
>
> I noticed W25Q256FV is supported by flashrom, but I'd like to reflash
> W25Q256JVFQ (used by Supermicro X11DAi-N). It also uses ID 4019, but
> does not support QPI.
>
> My programmer is a custom board connected to a Raspi3 using SPI
> interface. Any idea how to get it running?

if you look close at your log, you'll see that flashrom reads the ID
shifted by one bit. You probably just have to reduce the speed. See
flashrom's manual page about the linux_spi driver, it has a parameter
called `spispeed`.

Nico

[Michael Fuckner]

On 12/19/2017 01:31 AM, Nico Huber wrote:
> Hi Michael,
>
> On 18.12.2017 20:18, Michael Fuckner wrote:
> > Hi,
> >
> > I noticed W25Q256FV is supported by flashrom, but I'd like to reflash
> > W25Q256JVFQ (used by Supermicro X11DAi-N). It also uses ID 4019, but
> > does not support QPI.
> >
> > My programmer is a custom board connected to a Raspi3 using SPI
> > interface. Any idea how to get it running?
>
> if you look close at your log, you'll see that flashrom reads the ID
> shifted by one bit. You probably just have to reduce the speed. See
> flashrom's manual page about the linux_spi driver, it has a parameter
> called `spispeed`.

Hi,

maybe spispeed=512 is way too slow, but it worked! Both Boards are up 
and running again, THANK YOU!

Regards,
  Michael!