[U-Boot] Antwort: Re: QSPI "sf probe ...", "sf read ..." on Altera SoC FPGA

Hannes Schmelzer hannes at schmelzer.or.at
Fri Sep 29 08:50:14 UTC 2017


Clément Péron wrote:
Hi,

> Did you get some strange behaviors after a "warm reboot" from linux ?
> A week that i'm using a new u-boot but i catch some strange behavior
> after a reboot from linux.

there may some issue since linux can set the flash into another (4byte)
addressing mode which can cause trouble if u-boot try read with the
standard adressing mode (3byte).

i've seen on some hardware platforms that there is a reset signal wired to
the flash which resets this addressing mode setting on warm restart.

>
> Regards,
> Clement

cheers,
Hannes




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