diff options
author | Robin Getz <robin.getz@analog.com> | 2009-07-06 10:53:19 -0400 |
---|---|---|
committer | Mike Frysinger <vapier@gentoo.org> | 2009-09-16 21:31:43 -0400 |
commit | 3f871feaf3390c6d6e578818f867917c2e4738a2 (patch) | |
tree | 3b7ebc72793903361bb4b108bd829b21ede3fc01 /arch/blackfin/include/asm | |
parent | 53e18df745b6f833df07ead62ded09ebae3b0303 (diff) |
Blackfin: add an early shadow console
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>
Diffstat (limited to 'arch/blackfin/include/asm')
-rw-r--r-- | arch/blackfin/include/asm/early_printk.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/early_printk.h b/arch/blackfin/include/asm/early_printk.h index 110f1c1f845c..f5b6b7d972e8 100644 --- a/arch/blackfin/include/asm/early_printk.h +++ b/arch/blackfin/include/asm/early_printk.h | |||
@@ -23,6 +23,8 @@ | |||
23 | 23 | ||
24 | #ifdef CONFIG_EARLY_PRINTK | 24 | #ifdef CONFIG_EARLY_PRINTK |
25 | extern int setup_early_printk(char *); | 25 | extern int setup_early_printk(char *); |
26 | extern void enable_shadow_console(void); | ||
26 | #else | 27 | #else |
27 | #define setup_early_printk(fmt) do { } while (0) | 28 | #define setup_early_printk(fmt) do { } while (0) |
29 | #define enable_shadow_console(fmt) do { } while (0) | ||
28 | #endif /* CONFIG_EARLY_PRINTK */ | 30 | #endif /* CONFIG_EARLY_PRINTK */ |