On Sat Aug 3, 2024 at 6:40 PM AEST, Michael Tokarev wrote:
> Hi!
>
> It's been a long time since everyone's fighting with u-boot-sam460ex code 
> which is
> very bad, suffers from countless issues.
>
> For one, it does not compile for quite a long time with current compilers.
>
> For example, here are changes which I apply to this code when building things 
> on
> Debian: https://salsa.debian.org/qemu-team/qemu/-/tree/master/debian/patches/
> (see u-boot-sam460ex-* files in there).  I just created another patch,
> u-boot-sam460ex-build.patch, to address numerous new issues revealed by gcc-14
> and its new defaults in Debian.
>
> Please note that most of the last patch are actually just workarounds, not 
> real
> fixes, - real fixes needs much more than that.
>
> For example, there are a LOT of *conflicting* function declarations in .c 
> files
> where the functions are being used, instead of writing them in a common .h 
> file
> and including in both users and where it's defined.
>
> There are a lot of free conversions between pointer and integer. Some of the
> functions almost always used with a pointer but expects an integer, or vise
> versa.
>
> This code is awful.
>
> But.
>
> Can at least this minimal set of changes be comitted, to let this source to
> be compiled at least somehow?  For the benefit of everyone.
>
> The last patch (-build) also fixes a real bug:
>
>       char arr[8] = { 0 };
> -     i2c_write(0x68, 0x08, 1, &arr, 8);
> +     i2c_write(0x68, 0x08, 1, arr, 8);

Not sure about u-boot. Have you tried to get the patches upstreamed?

Thanks,
Nick

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