linux-kernel - Re: [PATCH v3 0/3] MIPS: ath79: add ag71xx support

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Date:   Sat, 4 May 2019 19:45:45 +0200
From:   Oleksij Rempel <linux@...pel-privat.de>
To:     Chuanhong Guo <gch981213@...il.com>,
        Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Paul Burton <paul.burton@...s.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        James Hogan <jhogan@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Jay Cliburn <jcliburn@...il.com>,
        Chris Snook <chris.snook@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Mark Rutland <mark.rutland@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        linux-mips@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, John Crispin <john@...ozen.org>,
        Felix Fietkau <nbd@....name>, netdev@...r.kernel.org
Subject: Re: [PATCH v3 0/3] MIPS: ath79: add ag71xx support

Hi,

Am 04.05.19 um 18:01 schrieb Chuanhong Guo:
> Hi!
>
> On Mon, Apr 22, 2019 at 2:41 PM Oleksij Rempel <o.rempel@...gutronix.de> wrote:
>> [...]
>> - most of deficetree bindings was removed. Not every thing made sense
>>   and most of it is SoC specific, so it is possible to detect it by
>>   compatible.
>
> I noticed that you've dropped all PLL and gmac-config stuff. These are
> board-specific properties and PLL registers should be changed
> accroding to negotiated ethernet speed. By dropping them, you rely on
> bootloader to configure everything corectly for you (which has been
> proven unreliable for many ath79 routers) and ethernet won't work if
> negotiated speed changed after u-boot's configuration.
Both of them should be properly implemented before mainlining. This is
the reason why they removed.

--
Regards,
Oleksij