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

[John Paul Adrian Glaubitz]

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@xxxxxxxxx>
> ---
>  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@xxxxxxxxxxxxxxxxxxx>

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