linux-kernel - Re: [PATCH 2/2] Documentation: kernel-parameters: Add earlyprintk=bios on SH

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Message-ID: <56579ab79a783e70dc900209cf32582c6585a6ad.camel@physik.fu-berlin.de>
Date:   Tue, 24 Oct 2023 18:42:56 +0200
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Jonathan Corbet <corbet@....net>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Magnus Damm <magnus.damm@...il.com>
Cc:     linux-doc@...r.kernel.org, linux-sh@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] Documentation: kernel-parameters: Add
 earlyprintk=bios on SH

On Thu, 2023-10-19 at 11:46 +0200, Geert Uytterhoeven wrote:
> Document the use of the "earlyprintk=bios[,keep]" kernel parameter
> option on SuperH systems with a SuperH standard BIOS.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
>  Documentation/admin-guide/kernel-parameters.txt | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 657bb0b54e2fc6cf..8e7f6be051a0e1d3 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -1331,6 +1331,7 @@
>  			earlyprintk=dbgp[debugController#]
>  			earlyprintk=pciserial[,force],bus:device.function[,baudrate]
>  			earlyprintk=xdbc[xhciController#]
> +			earlyprintk=bios
>  
>  			earlyprintk is useful when the kernel crashes before
>  			the normal console is initialized. It is not enabled by
> @@ -1361,6 +1362,8 @@
>  
>  			The sclp output can only be used on s390.
>  
> +			The bios output can only be used on SuperH.
> +
>  			The optional "force" to "pciserial" enables use of a
>  			PCI device even when its classcode is not of the
>  			UART class.

Reviewed-by: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
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