Blackfin arch: fix bug: tell users if the kernel is recovering from a fault condition

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index f1b059e5a06c..fc22ec8c2f47 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -316,6 +316,15 @@ void __init setup_arch(char **cmdline_p)
 
         init_leds();
 
+        _bfin_swrst = bfin_read_SWRST();
+
+        if (_bfin_swrst & RESET_DOUBLE)
+                printk(KERN_INFO "Recovering from Double Fault event\n");
+        else if (_bfin_swrst & RESET_WDOG)
+                printk(KERN_INFO "Recovering from Watchdog event\n");
+        else if (_bfin_swrst & RESET_SOFTWARE)
+                printk(KERN_NOTICE "Reset caused by Software reset\n");
+
         printk(KERN_INFO "Blackfin support (C) 2004-2007 Analog Devices, Inc.\n");
         if (bfin_compiled_revid() == 0xffff)
                 printk(KERN_INFO "Compiled for ADSP-%s Rev any\n", CPU);
@@ -402,8 +411,6 @@ void __init setup_arch(char **cmdline_p)
         if (l1_length > L1_DATA_A_LENGTH)
                 panic("L1 data memory overflow\n");
 
-        _bfin_swrst = bfin_read_SWRST();
-
         /* Copy atomic sequences to their fixed location, and sanity check that
            these locations are the ones that we advertise to userspace.  */
         memcpy((void *)FIXED_CODE_START, &fixed_code_start,