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u-boot configuration changes using ls1021A QORIQ SDK

Question asked by Scotty Wimberley on Jul 26, 2017
Latest reply on Jul 27, 2017 by Pavel Chubakov

In the document QorIQ SDK v2.0-1703 Documentation: Section 3.3.1 Customize U-Boot : The document says u-boot <machine>.conf UBOOT_CONFIG variables are to be modified as needed and then u-boot source code is modified.


Our custom board will boot from QSPI FLASH. It will have a larger FLASH than the ls1021Atwr.

When analyzing the <machine>.conf file, there are a variety of "defaults" configured. I see that several u-boot versions are built, one of which is QSPI boot.


So, my questions are:

1) Are the required modifications to u-boot source/configs already taken care of by the SDK?

2) If not, which ones require mods for a given boot device? I read in other places that the boot source when building with yacto is determined in the local.conf file, but I don't see that said in the SDK document. ... So, this is confusing.


Would you mind clarifying what needs to be done to build a QSPI boot from Nor for a ls1021a?