From: Paul Walmsley <paul.walmsley@sifive.com>
To: corbet@lwn.net
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-serial@vger.kernel.org, schwab@suse.de, hch@lst.de
Subject: [PATCH] Documentation: admin-guide: add earlycon documentation for the sifive serial driver
Date: Tue, 8 Oct 2019 16:08:27 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.21.9999.1910081606370.11044@viisi.sifive.com> (raw)
Document earlycon usage for the SiFive serial port driver in the same
fashion as for the other serial port IP blocks, since the SiFive
serial port driver supports it.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Reported-by: Andreas Schwab <schwab@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
---
Documentation/admin-guide/kernel-parameters.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c7ac2f3ac99f..90becb00221b 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1106,6 +1106,12 @@
address must be provided, and the serial port must
already be setup and configured.
+ sifive,<addr>
+ Start an early, polled-mode console on a SiFive
+ serial port at the specified address. The port must
+ already be setup and configured. Options are not
+ yet supported.
+
earlyprintk= [X86,SH,ARM,M68k,S390]
earlyprintk=vga
earlyprintk=sclp
--
2.23.0
next reply other threads:[~2019-10-08 23:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-08 23:08 Paul Walmsley [this message]
2019-10-09 6:56 ` [PATCH] Documentation: admin-guide: add earlycon documentation for the sifive serial driver Geert Uytterhoeven
2019-10-09 10:06 ` Andreas Schwab
2019-10-09 10:55 ` Geert Uytterhoeven
2019-10-09 14:31 ` Paul Walmsley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.DEB.2.21.9999.1910081606370.11044@viisi.sifive.com \
--to=paul.walmsley@sifive.com \
--cc=corbet@lwn.net \
--cc=hch@lst.de \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=schwab@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).