Enabling LTO for the imx28 platforms?

Enabling LTO for the imx28 platforms?

[Tom Rini]

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Hey,

Can you please test and then enable support for LTO on these platforms?
They're very close to their binary size limit and while I have been
pushing for people to look to reduce the size of new features when
added, and tripping the limit here, I'm now looking at
https://lore.kernel.org/r/20261027-spi-probe-speed-v3-1-33e056720925@iav.lv
being a fix that pushes them over-limit. Thanks!

-- 
Tom

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Re: Enabling LTO for the imx28 platforms?

[Łukasz Majewski]

Hi Tom,

> Hey,
> 
> Can you please test and then enable support for LTO on these
> platforms? They're very close to their binary size limit and while I
> have been pushing for people to look to reduce the size of new
> features when added, and tripping the limit here, I'm now looking at
> https://lore.kernel.org/r/20261027-spi-probe-speed-v3-1-33e056720925@iav.lv
> being a fix that pushes them over-limit. Thanks!
> 

I will look on that in the following days.

And indeed - for imx28 the binary (especially SPL) size is critical.
When exceeded, due to ROM code design, the boot is broken and board
gets bricked.

-- 
Best regards,

Lukasz Majewski

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