topic Re: LX2160A eMMC boot in Layerscape

LX2160A eMMC boot

tor_erik_ottins — Thu, 11 Jun 2020 20:05:48 GMT

I am trying to understand #eMMC boot for #LX2160A. The LSDK does not give any details (that I can find) for eMMC boot, just NOR and SD-card.

Does the LX2160A support loading RCW/PBI and BL2/3 from eMMC (I guess so since it is an option in cfg_rcw_src).

Does the LSDK support it?

Is Boot operation mode (as specified in JEDEC standard) supported, i.e. can I boot from one of the boot partitions?

ufedor — Fri, 12 Jun 2020 01:30:10 GMT

Booting LX2160A from eMMC is supported by LSDK - refer to the:

section LSDK IMAGES.

tor_erik_ottins — Sat, 13 Jun 2020 09:27:01 GMT

Thank you,

Is it correct that eMMC boot does not work on REV 1 of the LX2160ARDB, but it works on REV2?

Also I guess the LX2 service processor does not support booting from the eMMC boot partitions then (Boot operation/alternative boot operation mode).

ufedor — Sat, 13 Jun 2020 09:47:15 GMT

What do you mean by "REV 1 of the LX2160ARDB"?

Your statement about the service processor is correct.

tor_erik_ottins — Sat, 13 Jun 2020 16:18:12 GMT

By REV 1 I meant the original LX2160A-RDB as opposed to the LX2160A-RDB-B.

ufedor — Sun, 14 Jun 2020 03:50:50 GMT

The RDB boards only differ by the LX2160A silicon revision - "B" has Rev.2.0 installed.

There were no eMMC-related changes between the processor silicon revisions.