From: Paul Walmsley <paul.walmsley@sifive.com>
To: Andreas Schwab <schwab@suse.de>
Cc: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
linux-serial@vger.kernel.org, jslaby@suse.com,
linux-riscv@lists.infradead.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] serial/sifive: select SERIAL_EARLYCON
Date: Mon, 16 Sep 2019 04:57:14 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.21.9999.1909160456010.7214@viisi.sifive.com> (raw)
In-Reply-To: <mvmzhjcr2d4.fsf@suse.de>
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On Tue, 10 Sep 2019, Andreas Schwab wrote:
> On Sep 10 2019, Christoph Hellwig <hch@lst.de> wrote:
>
> > On Tue, Sep 10, 2019 at 08:57:37AM +0200, Andreas Schwab wrote:
> >> On Sep 10 2019, Christoph Hellwig <hch@lst.de> wrote:
> >>
> >> > The sifive serial driver implements earlycon support,
> >>
> >> It should probably be documented in admin-guide/kernel-parameters.txt.
> >
> > How so? Wіth OF and a stdout path you just set earlycon on the
> > command line without any arguments and it will be found.
>
> Doesn't work for me.
>
> [ 0.000000] Malformed early option 'earlycon'
Try:
earlycon=sifive,0x10010000
If it works, you should see this message on the kernel console very early
in the boot:
[ 0.000000] earlycon: sifive0 at MMIO 0x0000000010010000 (options '')
- Paul
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next prev parent reply other threads:[~2019-09-16 11:57 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-10 5:59 [PATCH] serial/sifive: select SERIAL_EARLYCON Christoph Hellwig
2019-09-10 6:57 ` Andreas Schwab
2019-09-10 7:05 ` Christoph Hellwig
2019-09-10 8:18 ` Andreas Schwab
2019-09-10 14:36 ` Christoph Hellwig
2019-09-10 14:42 ` Andreas Schwab
2019-09-13 20:40 ` Palmer Dabbelt
2019-09-16 6:42 ` Christoph Hellwig
2019-09-16 16:12 ` Palmer Dabbelt
2019-09-16 19:40 ` Andreas Schwab
2019-09-16 21:38 ` Palmer Dabbelt
2019-09-17 7:43 ` Andreas Schwab
2019-10-04 21:45 ` Atish Patra
2019-09-16 11:57 ` Paul Walmsley [this message]
2019-09-16 12:00 ` Andreas Schwab
2019-09-16 12:15 ` Christoph Hellwig
2019-09-16 12:18 ` Paul Walmsley
2019-09-16 12:22 ` Christoph Hellwig
2019-09-16 10:21 ` Paul Walmsley
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