[PATCH 2/2] Documentation: kernel-parameters: Add earlyprintk=bios on SH
Geert Uytterhoeven <[email protected]>
| Newsgroups | gmane.linux.ports.sh.devel,gmane.linux.documentation,gmane.linux.kernel |
|---|---|
| Message-ID | <febc920964f2f0919d21775132e84c5cc270177e.1697708489.git.geert+renesas@glider.be> |
Document the use of the "earlyprintk=bios[,keep]" kernel parameter option on SuperH systems with a SuperH standard BIOS. Signed-off-by: Geert Uytterhoeven <[email protected]> --- 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. -- 2.34.1