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authorRobin Getz <robin.getz@analog.com>2009-07-06 10:53:19 -0400
committerMike Frysinger <vapier@gentoo.org>2009-09-16 21:31:43 -0400
commit3f871feaf3390c6d6e578818f867917c2e4738a2 (patch)
tree3b7ebc72793903361bb4b108bd829b21ede3fc01 /arch/blackfin/kernel/setup.c
parent53e18df745b6f833df07ead62ded09ebae3b0303 (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/kernel/setup.c')
-rw-r--r--arch/blackfin/kernel/setup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 6dbf21930a9..3974764acd2 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -810,6 +810,8 @@ void __init setup_arch(char **cmdline_p)
810{ 810{
811 unsigned long sclk, cclk; 811 unsigned long sclk, cclk;
812 812
813 enable_shadow_console();
814
813 /* Check to make sure we are running on the right processor */ 815 /* Check to make sure we are running on the right processor */
814 if (unlikely(CPUID != bfin_cpuid())) 816 if (unlikely(CPUID != bfin_cpuid()))
815 printk(KERN_ERR "ERROR: Not running on ADSP-%s: unknown CPUID 0x%04x Rev 0.%d\n", 817 printk(KERN_ERR "ERROR: Not running on ADSP-%s: unknown CPUID 0x%04x Rev 0.%d\n",