On Tue, Jul 3, 2018 at 9:01 PM, Logan Gunthorpe <logang@xxxxxxxxxxxx> wrote: > On 03/07/18 11:36 AM, Andy Shevchenko wrote: >>> This is now in linux-next as commit 46e4bf08f6388 and it breaks >>> booting imx6 (32-bit ARM): >>> Any ideas on how to fix this issue? >> >> Oops, first of all the header should be hi-lo instead of lo-hi. >> Does it fix it? >> >> Otherwise I didn't (briefly) see what can be the issue. > > I had to dig to find this: but Horia had said[1] that the HW was > specified to use lo-hi and I think we ended up changing to that for this > commit based on his feedback. This is also mentioned in the commit message. Apparently I missed that part of the discussion. > Besides that, it looks like we are hitting an undefined instruction. So > my best guess is that we are somehow now calling a proper 64bit read > when we should be calling two 32-bit reads. Which is a bit strange. For arm we have been using generic definitions. Only very few architectures use own defined macros. > > Fabio, can you send your configuration? > > Thanks, > > Logan > > [1] > http://lkml.kernel.org/r/VI1PR0401MB259145C2DFDB5E4084EA5DFC98D20@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > > -- With Best Regards, Andy Shevchenko
