Re: imx51 and CONFIG_NEON

On Wed, Sep 01, 2010, Amit Kucheria wrote:

Because it adds a sub-arch, revision-specific override into generic architecture code (vfpmodule.c)

To do this elegantly with a hope to get it to mainline, we'd need a way to disable the hwcap through some board-specific fixup code that can check the revision of the board at runtime.

Unfortunately, it seems after talking to Nicolas that mdesc->fixup() is called too early.

Nicolas suggested linking the i.MX5 code _after_ the VFP module :)

Sounds like a plan!

Another solution is that we could perhaps add code in the board init function to check the cpu revision and if NEON was enabled, then stop booting.

Would be a good workaround if the elegant version takes too long