[ptxdist] OSELAS Toolchain for i.MX 6UltraLite MCIMX6G2

[ptxdist] OSELAS Toolchain for i.MX 6UltraLite MCIMX6G2

[Matthias Klein]

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Hello,

we are using the OSELAS Toolchain 2014.12.2 in the 
"arm-v7a-linux-gnueabihf" variant for the NXP i.MX6S7 and NXP i.MX6QP7.

Can we use this existing Toolchain and the PTXdist project also for the 
i.MX 6UltraLite MCIMX6G2?


In other words: do we need only a different device tree (and a kernel 
which supports the CPU/Board), or do we need a different Toolchain (and 
different PTXdist project)?



Best regards,
Matthias Klein

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Re: [ptxdist] OSELAS Toolchain for i.MX 6UltraLite MCIMX6G2

[Lucas Stach]

Hi Matthias,

Am Mittwoch, den 11.04.2018, 09:26 +0000 schrieb Matthias Klein:
> Hello,
> 
> we are using the OSELAS Toolchain 2014.12.2 in the "arm-v7a-linux-
> gnueabihf" variant for the NXP i.MX6S7 and NXP i.MX6QP7.
> 
> Can we use this existing Toolchain and the PTXdist project also for
> the i.MX 6UltraLite MCIMX6G2?
> 
> 
> In other words: do we need only a different device tree (and a kernel
> which supports the CPU/Board), or do we need a different Toolchain
> (and different PTXdist project)?

Yes, both CPUs are compatible. The only difference regarding the
toolchain/platform is that the Cortex-A7 on the MX6UL supports vfp-v4,
while the Cortex-A9 on the older i.MX6 variants only supports vfp-v3.

The generic arm-v7a toolchain will not use the newer vfp version by
default, but it's something to keep in mind. Just don't add vfp-v4 to
the platform toolchain options in the BSP and you should be fine.

Regards,
Lucas

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Re: [ptxdist] OSELAS Toolchain for i.MX 6UltraLite MCIMX6G2

[Matthias Klein]

Hello Lucas,

Thanks a lot for the info!


Best regards,
Matthias

------ Originalnachricht ------
Von: "Lucas Stach" <l.stach@pengutronix.de>
An: ptxdist@pengutronix.de; "Matthias Klein" 
<matthias.klein@optimeas.de>
Gesendet: 11.04.2018 11:42:44
Betreff: Re: [ptxdist] OSELAS Toolchain for i.MX 6UltraLite MCIMX6G2

>Hi Matthias,
>
>Am Mittwoch, den 11.04.2018, 09:26 +0000 schrieb Matthias Klein:
>>Hello,
>>
>>we are using the OSELAS Toolchain 2014.12.2 in the "arm-v7a-linux-
>>gnueabihf" variant for the NXP i.MX6S7 and NXP i.MX6QP7.
>>
>>Can we use this existing Toolchain and the PTXdist project also for
>>the i.MX 6UltraLite MCIMX6G2?
>>
>>
>>In other words: do we need only a different device tree (and a kernel
>>which supports the CPU/Board), or do we need a different Toolchain
>>(and different PTXdist project)?
>
>Yes, both CPUs are compatible. The only difference regarding the
>toolchain/platform is that the Cortex-A7 on the MX6UL supports vfp-v4,
>while the Cortex-A9 on the older i.MX6 variants only supports vfp-v3.
>
>The generic arm-v7a toolchain will not use the newer vfp version by
>default, but it's something to keep in mind. Just don't add vfp-v4 to
>the platform toolchain options in the BSP and you should be fine.
>
>Regards,
>Lucas


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