> How to change LS1020 boot from QSPI Nor-Flash?
To select QuadSPI as RCW source it is needed to configure cfg_rcw_src[0:8] (multiplexed on {IFC_AD[8:15], IFC_CLE}) as 0_0100_010x - refer to the QorIQ LS1021A Reference Manual, 4.4.5.1 Reset configuration word (RCW) source.
> And how to download RCW to the Nor-Flash?
There are two options:
1) boot the LS1021A-based board from SD card into U-Boot, then program the flash
The SD card image is available here:
https://lsdk.github.io/components.html
section LSDK IMAGES, select LSDK version 2004
2) using CodeWarrior TAP and CodeWarrior flash programmer connect to the LS1021A-based board and program composite firmware image.
For the composite image please refer to the LSDK Documentation:
https://docs.nxp.com/bundle/GUID-51EEFEDB-ABD5-40C0-BEBD-6527B3494D57/page/GUID-47B8F1F5-3A8F-45F4-A...
