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From: "Andreas Färber" <afaerber-l3A5Bk7waGM@public.gmane.org>
To: Matthias Brugger <matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Kristian Evensen
	<kristian.evensen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	John Crispin <john-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org>
Subject: Re: Questions about bringing up MT7623 board
Date: Sat, 17 Feb 2018 20:10:36 +0100	[thread overview]
Message-ID: <186a59b8-6be1-cb48-8682-c795947bfde5@suse.de> (raw)
In-Reply-To: <a594ffaa-4098-4171-f824-1aa3f332c9fc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

Hi Matthias,

Am 12.02.2018 um 12:08 schrieb Matthias Brugger:
> On 02/11/2018 11:55 AM, Kristian Evensen wrote:
>> On Sun, Feb 11, 2018 at 11:41 AM, John Crispin <john@phrozen.org> wrote:
>>> Is Earlyprinkt enabled in the kernel .config ?
>>
>> No, turns out CONFIG_EARLY_PRINTK was not enabled. This is the first
>> time I am trying to add support for a board outisde the safe walls of
>> OpenWRT, so sorry for such a rookie mistake.
>>
> 
> More then a rookie mistake for me it's kind of an overlook which can cost you
> half a day. This kind of errors at least to me they happens on a semi-regular
> basis :)

Is there some problem with using earlycon on Mediatek? That should avoid
tinkering with earlyprintk Kconfig options.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/serial/8250/8250_mtk.c

The mtk8250 earlycon option is not documented for users:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/Documentation/admin-guide/kernel-parameters.txt

Regards,
Andreas

-- 
SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)

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      parent reply	other threads:[~2018-02-17 19:10 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-10 22:02 Questions about bringing up MT7623 board Kristian Evensen
     [not found] ` <CAKfDRXhhrndoKMidZYsw=E8BmS7AFsTJHbS4dcYbEoADhjD44Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 10:33   ` Kristian Evensen
     [not found]     ` <CAKfDRXg0jeHP9xZRGDNm5tfW1afZd-TPfwbwUzEPiWsy_bfuUQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 10:36       ` John Crispin
     [not found]         ` <fc2bf32a-eb81-6cd1-9085-b8786ddf0f9c-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org>
2018-02-11 10:40           ` Kristian Evensen
     [not found]             ` <CAKfDRXjpG4CNeHfKC1Kg=6mrqUTZ8A7bD1aivLkSQ2L0eK755Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 10:41               ` John Crispin
     [not found]                 ` <6ae4103b-45bf-c427-d0d9-87f6f4eb83b5-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org>
2018-02-11 10:55                   ` Kristian Evensen
     [not found]                     ` <CAKfDRXiJCMpA+qj4HmoSg0F_Yt4LnjQ=Dvy_tkxa=Dnh_pN13g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 11:11                       ` John Crispin
     [not found]                         ` <12343512-196f-c89f-e7dc-2e35cad49fc8-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org>
2018-02-11 11:13                           ` Kristian Evensen
     [not found]                             ` <CAKfDRXg66Un3c7U=WTSUYoduDkAD+jsL-tzxnYUSLHKrmFKiOg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 14:01                               ` Kristian Evensen
     [not found]                                 ` <CAKfDRXiQb3LMSdjfE=CkfJE5bj9H+GAVD2Kj4syNfQD-eUPmWg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 14:46                                   ` John Crispin
     [not found]                                     ` <CAKfDRXjVSsYke-d2Bww+SrqRepfgVXzHBbeyfahOhc9Tr5Zmbw@mail.gmail.com>
     [not found]                                       ` <CAKfDRXjVSsYke-d2Bww+SrqRepfgVXzHBbeyfahOhc9Tr5Zmbw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 17:45                                         ` John Crispin
     [not found]                                           ` <CAKfDRXiirPhTbaUTcxseS7UuAiFDR_oY-QdvwvYc6Ua2vwuLSw@mail.gmail.com>
     [not found]                                             ` <CAKfDRXiirPhTbaUTcxseS7UuAiFDR_oY-QdvwvYc6Ua2vwuLSw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-11 17:56                                               ` John Crispin
     [not found]                                                 ` <ba2e3623-dd21-9802-9ae6-12cd8baaac1e-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org>
2018-02-11 20:53                                                   ` Kristian Evensen
2018-02-12 11:08                       ` Matthias Brugger
     [not found]                         ` <a594ffaa-4098-4171-f824-1aa3f332c9fc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-02-12 12:02                           ` Kristian Evensen
     [not found]                             ` <CAKfDRXgNGRHu9JMs-9vb4n72w+PmR8buqDnz8ObEQNXtP1pM4w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-12 14:37                               ` Sean Wang
2018-02-12 14:49                                 ` Kristian Evensen
     [not found]                                   ` <CAKfDRXi57H5V+Qv-YO6+8OKdZLbTw7T_h64uZTMQZP6biO7Wpg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-04-29 20:18                                     ` Kristian Evensen
     [not found]                                       ` <CAKfDRXg419rBTeqZ+UqQJFRj5s6CVg0YXzjmhyFxrbJgMkM8fg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-04-30  1:42                                         ` Ryder Lee
2018-04-30 16:12                                           ` Kristian Evensen
2018-02-17 19:10                           ` Andreas Färber [this message]

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