LS1043A QSPI Boot

[j_wallace]

Hi Experts,

We are designing custom LS1043A based bord that will boot from QSPI NOR flash. When I build u-boot from DENX u-boot-fsl-qoriq for LS1043AQDS board it looks like there is no SPL build. So I would like to ask

1) How does the QSPI boot work? How code gets from QSPI NOR flash to SDRAM?

Furthermore, I saw that SPI MTD driver is also linked to u-boot when building for LS1043AQDS and this driver does not seem to support the QSPI flash of our custom board. So perhaps we will have to patch the driver to match our device.

2) Is MTD driver involved in the boot process for QSPI boot?

Thanks in advance.

[Pavel · Accepted solution]

Look at the following document:

https://community.nxp.com/docs/DOC-102040

This document shows that QSPI NOR Flash is used as memory-mapped flash.

Have a great day,
Pavel Chubakov

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[j_wallace]

Ok,

Thanks for your feedback.

Best regards.