Blackfin: add an early shadow console

Browse source

Add a memory based shadow console to keep a copy of the printk buffer in a
location which can be found externally.  This allows bootloaders to locate
and utilize the log buffer in case of silent (early/resume/etc...) crashes.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

...

This commit is contained in:

Robin Getz 2009-07-06 14:53:19 +00:00 • committed by Mike Frysinger

parent 53e18df745

commit 3f871feaf3

4 changed files with 83 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/blackfin/include/asm/early_printk.h

View file

1

arch/blackfin/kernel/Makefile

View file

2

arch/blackfin/kernel/setup.c

View file

78

arch/blackfin/kernel/shadow_console.c

View file