[PATCH 0/2] powerpc: Remove support for ppc405/440 Xilinx platforms

Christophe Leroy christophe.leroy at c-s.fr
Wed Apr 8 09:09:18 CEST 2020



Le 08/04/2020 à 01:32, Benjamin Herrenschmidt a écrit :
> On Fri, 2020-04-03 at 15:59 +1100, Michael Ellerman wrote:
>> Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:
>>> On Tue, 2020-03-31 at 16:30 +1100, Michael Ellerman wrote:
>>>> I have no attachment to 40x, and I'd certainly be happy to have
>>>> less
>>>> code in the tree, we struggle to keep even the modern platforms
>>>> well
>>>> maintained.
>>>>
>>>> At the same time I don't want to render anyone's hardware
>>>> obsolete
>>>> unnecessarily. But if there's really no one using 40x then we
>>>> should
>>>> remove it, it could well be broken already.
>>>>
>>>> So I guess post a series to do the removal and we'll see if
>>>> anyone
>>>> speaks up.
>>>
>>> We shouldn't remove 40x completely. Just remove the Xilinx 405
>>> stuff.
>>
>> Congratulations on becoming the 40x maintainer!
> 
> Didn't I give you my last 40x system ? :-) IBM still put 40x cores
> inside POWER chips no ?
> 

According to Wikipedia (https://en.wikipedia.org/wiki/PowerPC_400), 405 
cores are used in modern equipments (how modern ?), however 403 has 
never reached the market.

Can we start removing 403 stuff ? That's not a lot, but still.

Does anybody knows anything about this ERRATUM 77 stuff ? Is that still 
an issue with all 405 cores or has this been fixed long time ago and can 
be removed ?

Christophe


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