[U-Boot] [u-boot-release] [PATCH 2/2][v5] nxp/ls2080ardb: Add QSPI-boot support

[Priyanka Jain]

> -----Original Message-----
> From: York Sun [mailto:york.sun at nxp.com]
> Sent: Thursday, April 27, 2017 10:25 PM
> To: Priyanka Jain <priyanka.jain at nxp.com>; u-boot at lists.denx.de
> Cc: Suresh Gupta <suresh.gupta at nxp.com>
> Subject: Re: [u-boot-release] [PATCH 2/2][v5] nxp/ls2080ardb: Add QSPI-boot
> support
> 
> On 04/26/2017 09:56 PM, Priyanka Jain wrote:
> 
> <snip>
> 
> >>
> >> Priyanka,
> >>
> >> I understand you don't have access to CPLD. Do you still have access
> >> to IFC NOR flash? Can you boot from NOR flash, and issue a cpld
> >> command to reboot from QSPI?
> >>
> >> York
> > No, NOR and QSPI are muxed at RCW level. So, IFC is disabled for QSPI-boot.
> > We use QSPI emulator on board or code-warrior to write to on-board QSPI
> flash.
> >
> > Also, for LS2088ARDB, we only have single QSPI flash. So no alternate bank.
> >
> 
> What if the user brick the board by trashing QSPI flash? Is JTAG tool the only way
> to recover? Can QSPI be accessed by booting from other sources?
> 
> The single bank QSPI will be a disaster if we cannot recover a bricked board.
> 
> York
QSPI can be accessed also by attaching QSPI emulator device on boards.
This issue has been resolved in another similar platform LS2081ARDB which has dual QSPI flash.
Priyanka