From: Otavio Salvador <otavio.salvador@ossystems.com.br>
To: Gary Thomas <gary@mlbassoc.com>
Cc: "meta-freescale@yoctoproject.org" <meta-freescale@yoctoproject.org>
Subject: Re: i.MX6Q vs i.MX6UL tuning
Date: Tue, 11 Oct 2016 09:20:23 -0300 [thread overview]
Message-ID: <CAP9ODKoOE2Fn+DtdvnMSGkMYMUPXGozbUwv2GvEa9zkrbcXepQ@mail.gmail.com> (raw)
In-Reply-To: <80282b74-4a74-e3b7-aafa-bc9a53a7d38c@mlbassoc.com>
On Tue, Oct 11, 2016 at 4:08 AM, Gary Thomas <gary@mlbassoc.com> wrote:
> I'm working with machines that have i.MX6Q/DL and i.MX6UL and noticed
> that they have quite different tuning.
>
> i.MX6Q:
> TUNE_FEATURES = "arm armv7a vfp thumb neon callconvention-hard
> cortexa9"
> TARGET_FPU = "hard"
>
> i.MX6UL:
> TUNE_FEATURES = "arm armv7ve vfp thumb neon cortexa7"
> TARGET_FPU = "softfp"
>
> I've not adjusted any GCC tuning for these targets. Just wondering
> why the i.MX6Q is hardfp and the i.MX6UL is soft? Anyone know why
> this choice was made?
I don't foresee any problem in using hardfp for UL.
--
Otavio Salvador O.S. Systems
http://www.ossystems.com.br http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854 Mobile: +1 (347) 903-9750
next prev parent reply other threads:[~2016-10-11 12:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-11 7:08 i.MX6Q vs i.MX6UL tuning Gary Thomas
2016-10-11 12:20 ` Otavio Salvador [this message]
2016-10-11 13:36 ` Lauren Post
2016-10-11 13:54 ` Otavio Salvador
2016-10-12 1:24 ` Gary Thomas
2016-10-12 1:35 ` Gary Thomas
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