[U-Boot] powerpc 4xx support

[Tom Rini]

On Tue, Nov 14, 2017 at 06:21:17PM +0000, Ivan Mikhaylov1 wrote:

> hi everyone, I saw that powerpc 4xx cpus were removed from powerpc cpu tree with this commit 
> 98f705c9cefdfdba62c069821bbba10273a0a8ed
> powerpc: remove 4xx support
> 
> I can help to maintain this tree with further support and needs. As I understood reason of this 
> removal was change to Kconfig. Anything else should be done? In this case what process should be?
> 1. get cpu 4xx before removal
> 2. do the migration to kconfig
> 3. send patches via uboot mail list
> something like this?

So, we need active testing and maintenance.  To bring 4xx support back,
introduce patches that bring in core support and migrate the code to
using Kconfig only.  There must be no new entries to
scripts/config_whitelist.txt

-- 
Tom
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