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Date:   Mon, 23 Jan 2023 14:26:55 +0100 (CET)
From:   Angelo Dureghello <angelo@kernel-space.org>
To:     Vladimir Oltean <olteanv@gmail.com>
cc:     Andrew Lunn <andrew@lunn.ch>, netdev@vger.kernel.org
Subject: Re: mv88e6321, dual cpu port
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References: <5a746f99-8ded-5ef1-6b82-91cd662f986a@kernel-space.org> <Y7yIK4a8mfAUpQ2g@lunn.ch> <ed027411-c1ec-631a-7560-7344c738754e@kernel-space.org> <20230110222246.iy7m7f36iqrmiyqw@skbuf> <Y73ub0xgNmY5/4Qr@lunn.ch> <8d0fce6c-6138-4594-0d75-9a030d969f99@kernel-space.org>
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Hi Vladimir,

On Mon, 23 Jan 2023, Vladimir Oltean wrote:

> On Mon, Jan 23, 2023 at 09:52:15AM +0100, Angelo Dureghello wrote:
>> I am now stuck to 5.4.70 due to freescale stuff in it.
>> I tried shortly a downgrade of net/dsa part from 5.5,
>> but, even if i have no errors, i can't ping out, something
>> seems has gone wrong, i don't like too much this approach.
>>
>> But of course, i could upgrade to 5.10 that's available
>> from freescale, with some effort.
>> Then, i still should apply a patch on the driver to have dual
>> cpu running, if i understand properly, correct ?
>
> What is the Freescale chip stuck on 5.4 (5.10 with some effort) if I may
> ask? I got the impression that the vast majority of SoCs have good
> enough mainline support to boot a development kernel and work on that,
> the exception being some S32 platforms.
>

I think i tested mainline kernel, but the rpmsg part to
communicate with M4 core and scu firmware seems not there.
So i am stuck with freescale stuff now. Anyway, freescale
released their 5.10 branch, so eventually i'll move
to that.

Regards,
angelo