On Tue, Nov 21, 2017 at 6:33 AM, Paul Sievers <[email protected]> wrote:
...
> I could get it to work, but I needed to do 2 things that I did not really 
> understand:
> 1. I used the ISA (Instruction Set Architecture) "armv7a". But there are 
> variants of this like "armv7athf". Do you know any documentation where I 
> could look up the "right" ISA-value for my processor (i.MX6UL)?

The armv7a is the instruction set. t stands for thumb and hf for
hardfloat. It seems as a good option for your SoC.

> 2. I used build/tmp/environment-setup-cortexa7hf-neon-poky-linux-gnueabi , 
> but there were other files named "environment-setup..." with different 
> contents. Did I use the right one?

You did. But it likely used the BSP tune as it is defined here:

http://git.yoctoproject.org/cgit/cgit.cgi/meta-freescale/tree/conf/machine/include/imx-base.inc#n48

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Otavio Salvador                             O.S. Systems
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