linux-kernel - Re: [RFC PULL] remove arch/h8300

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Message-ID: <53e24114-fe48-91aa-1b76-78b12dfcdf4e@roeck-us.net>
Date:   Tue, 5 Apr 2022 17:12:10 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        "moderated list:H8/300 ARCHITECTURE" 
        <uclinux-h8-devel@...ts.sourceforge.jp>,
        "open list:TENSILICA XTENSA PORT (xtensa)" 
        <linux-xtensa@...ux-xtensa.org>, Max Filippov <jcmvbkbc@...il.com>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Damien Le Moal <damien.lemoal@....com>,
        linux-riscv <linux-riscv@...ts.infradead.org>
Subject: Re: [RFC PULL] remove arch/h8300

On 4/5/22 15:01, Arnd Bergmann wrote:
> On Tue, Apr 5, 2022 at 11:26 PM Guenter Roeck <linux@...ck-us.net> wrote:
>> On Mon, Apr 04, 2022 at 03:07:06PM +0200, Arnd Bergmann wrote:
>>>
>>> Should we garbage-collect some of the other nommu platforms where
>>> we're here? Some of them are just as stale:
>>>
>>> 1. xtensa nommu has does not compile in mainline and as far as I can
>>> tell never did
>>>     (there was https://github.com/jcmvbkbc/linux-xtensa/tree/xtensa-5.6-esp32,
>>> which
>>>     worked at some point, but I don't think there was enough interest
>>> to get in merged)
>>
>> Hmm, I build and test nommu_kc705_defconfig in my test system.
> 
> What toolchain do you use for this? Max already pointed out my mistake
> regarding xtensa, which I thought does not build at all, but just needs
> a toolchain specific to the cpu.
> 

Home-built using buildroot. I have three different xtensa toolchains
(de212, dc232b, and dc233c). The toolchain for kc705_nommu needs the
de212 overlay; I think Max pointed to to the information needed
to build the compiler. Buildroot has the "XTENSA_OVERLAY_FILE"
option to specify the compiler overlay file for the target.

Guenter