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

York Sun york.sun at nxp.com
Thu Apr 27 16:55:14 UTC 2017


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


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