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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-11-03 02:34:59 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-11-03 02:34:59 +0100 |
| commit | 5be9911406ada8fe6187db7ce402f7ff4c21ebdf (patch) | |
| tree | d38a52646604280746a3801a7f78ab8d23e63603 /Documentation/admin-guide | |
| parent | Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm (diff) | |
| parent | locking/atomic: sh: Use generic_cmpxchg_local for arch_cmpxchg_local() (diff) | |
| download | linux-5be9911406ada8fe6187db7ce402f7ff4c21ebdf.tar.xz linux-5be9911406ada8fe6187db7ce402f7ff4c21ebdf.zip | |
Merge tag 'sh-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
Pull sh updates from John Paul Adrian Glaubitz:
"While the previously announced patch series for converting arch/sh to
device trees is not yet ready for inclusion to mainline and therefore
didn't make it for this pull request, there are still a small number
changes for v6.7 which include one platform (board plus CPU and driver
code) removal plus two fixes.
The removal sent in by Arnd Bergmann concerns the microdev board which
was an early SuperH prototype board that was never used in production.
With the board removed, we were able to drop the now unused code for
the SH4-202 CPU and well as the driver code for the superhyway bus and
a custom implementation for ioport_map() and ioport_unmap() which will
allow us to simplify ioport handling in the future.
Another patch set by Geert Uytterhoeven revives SuperH BIOS
earlyprintk support which got accidentally disabled in
e76fe57447e88916 ("sh: Remove old early serial console code V2"), the
second patch in the series updates the documentation.
Finally, a patch by Masami Hiramatsu fixes a regression reported by
the kernel test robot which uncovered that arch/sh is not implementing
arch_cmpxchg_local() and therefore needs use __generic_cmpxchg_local()
instead"
* tag 'sh-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
locking/atomic: sh: Use generic_cmpxchg_local for arch_cmpxchg_local()
Documentation: kernel-parameters: Add earlyprintk=bios on SH
sh: bios: Revive earlyprintk support
sh: machvec: Remove custom ioport_{un,}map()
sh: Remove superhyway bus support
sh: Remove unused SH4-202 support
sh: Remove stale microdev board
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 07625c60aa8a..01c7082ee999 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1335,6 +1335,7 @@ 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 @@ -1365,6 +1366,8 @@ 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. |