topic Re: Boot LS2085a RDB from SPI? in Layerscape

Boot LS2085a RDB from SPI?

tpearson — Wed, 08 Jun 2016 14:50:00 GMT

Is it possible to boot the LS2085a RDB from the on-board SPI NOR Flash? If so, what are the correct switch settings for a Revision D board?

We can handle generating the new SPI RCW, etc., but need the switch settings to enable loading the RCW from SPI.

Thanks!

Re: Boot LS2085a RDB from SPI?

alexander_yakov — Thu, 09 Jun 2016 14:42:15 GMT

The board is preproduction, and booting form SPI option is not tested yet. For this particular moment the only one boot option is tested and supported.

Board reference manual is currently "preliminary, confidential", so it is not correct to disclose its contents in this public community.

Re: Boot LS2085a RDB from SPI?

tpearson — Thu, 09 Jun 2016 16:23:34 GMT

There's a big difference between "possible to" and "not tested". If it is not possible to boot due to the board design, then we don't want to waste any further engineering effort on that avenue. If it is technically possible but not tested, then we'll come back to this after the manual becomes public.

Re: Boot LS2085a RDB from SPI?

alexander_yakov — Fri, 10 Jun 2016 14:53:25 GMT

Yes, your understanding is absolytely correct - for this moment the exact status is "not tested".

I do not see any indications about "not possible" due to board design or other limitations. The feature is listed, but currently "not tested".

Re: Boot LS2085a RDB from SPI?

tpearson — Fri, 10 Jun 2016 15:14:05 GMT

OK, we will continue with NOR boot and come back to SPI boot later in the year.

Thank you for the information!