linux-kernel - [PATCH] Documentation: admin-guide: add earlycon documentation for RISC-V

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.DEB.2.21.9999.1910091252160.11044@viisi.sifive.com>
Date:   Wed, 9 Oct 2019 12:53:50 -0700 (PDT)
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     Jonathan Corbet <corbet@....net>
cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Christoph Hellwig <hch@....de>, Andreas Schwab <schwab@...e.de>
Subject: [PATCH] Documentation: admin-guide: add earlycon documentation for
 RISC-V


Kernels booting on RISC-V can specify "earlycon" with no options on
the Linux command line, and the generic DT earlycon support will query
the "chosen/stdout-path" property (if present) to determine which
early console device to use.  Document this appropriately in the
admin-guide.

Signed-off-by: Paul Walmsley <paul.walmsley@...ive.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Christoph Hellwig <hch@....de>
Cc: Andreas Schwab <schwab@...e.de>
---
 Documentation/admin-guide/kernel-parameters.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c7ac2f3ac99f..011fee969ece 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -990,6 +990,10 @@
 			[X86] When used with no options the early console is
 			determined by the ACPI SPCR table.
 
+			[RISCV] When used with no options, the early
+			console is determined by the stdout-path
+			property in the device tree's chosen node.
+
 		cdns,<addr>[,options]
 			Start an early, polled-mode console on a Cadence
 			(xuartps) serial port at the specified address. Only
-- 
2.23.0