Hang up boot time on some BCM module

[Mori Hiroki]

Hi.

I make old BCM support patch. This can boot my all BCM module.
But I have still hung up problem.

BCM5351 is fine. But BCM4712,BCM5352,BCM5354 is hung up.

https://gist.github.com/yamori813/04a4749d0342ae3bbc6026b8e03cef26


I can't break at hung up.

First I found this problem is end of 2015 on ray's BCM code.

I seem hardware and software interrupt conflict on some module.

I seem last output is uart tx filo length at hung up.

I think arm's cns11xx have same problem.

If you have advice, please let me know.

Thanks

Hiroki Mori