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authorFinn Thain <fthain@telegraphics.com.au>2014-04-12 23:48:56 +1000
committerGeert Uytterhoeven <geert@linux-m68k.org>2014-05-28 10:10:04 +0200
commit7913ad1ad83409e7f9ed5758bb4324bf64c95a73 (patch)
tree562d7acf6b0ab016a1c7ca3cbfe9cd4ed9f8f9ab /Documentation
parent97f3f68c21fb5edaf4503b9aef6beefddf316d76 (diff)
m68k: Multi-platform EARLY_PRINTK
Make the boot console available to more m68k platforms by leveraging the head.S debug console. The boot console is enabled by the "earlyprintk" command line argument which is how most other architectures do this. This is a change of behaviour for the Mac but does not negatively impact the common use-case which is not debugging. This is also a change of behaviour for other platforms because it means the serial port stays quiet when CONFIG_EARLY_PRINTK is not enabled. This is also an improvement for the common use-case. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Stephen N Chivers <schivers@csc.com.au> [Geert: CONSOLE_DEBUG should depend on CONFIG_FONT_SUPPORT] Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 30a8ad0dae53..7da289ee0589 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -892,7 +892,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
(mmio) or 32-bit (mmio32).
The options are the same as for ttyS, above.
- earlyprintk= [X86,SH,BLACKFIN,ARM]
+ earlyprintk= [X86,SH,BLACKFIN,ARM,M68k]
earlyprintk=vga
earlyprintk=efi
earlyprintk=xen