Unable to read or write from system SPI flash memory.

[Andrew Jeffery]

On Mon, 18 Feb 2019, at 15:04, AKASH G J wrote:
> I wrote a bootable version of OpenBMC Linux image in system SPI flash. 
> 
> I tried to boot it before power-off, it was successfully booted. Then I 
> tried to boot the same, that time it was unsuccessful.

But you just said you flashed an OpenBMC image to the system flash. 
That's never going to work. You need the host firmware on the host
flash to successfully boot the host, and OpenBMC is not the host
firmware.

Am I understanding you correctly?

> 
> Do I need to make any change in the Linux device tree for resolving this issue?
> 
> On Mon, Feb 18, 2019 at 8:15 AM Andrew Jeffery <andrew at aj.id.au> wrote:
> > 
> >  
> >  On Fri, 15 Feb 2019, at 16:03, AKASH G J wrote:
> >  > I just powered off the entire board. After that the data is not present in
> >  > the SPI1 flash. But before power-off it was there.
> >  
> >  How were you verifying the data was there before the poweroff?
> >  
> >  > 
> >  > We are using OpenBMC Linux version 4.18.7 and pflash v6.1
> >  
> >  Thanks for the versions. Should be handy as we dig deeper.
> >  
>