diff options
| author |   Robin Getz <robin.getz@analog.com> | 2007-06-21 16:34:08 +0800 |
|---|---|---|
| committer |   Bryan Wu <bryan.wu@analog.com> | 2007-06-21 16:34:08 +0800 |
| commit | 669b792c77bbc30e9f4d9c95dbc918dc348c49c2 (patch) | |
| tree | 2d8403e9e3cf998eda8465a322261d45e24cd26a /arch/blackfin/kernel/setup.c | |
| parent | Blackfin arch: Start untangling the CPLB handling code. (diff) | |
| download | linux-dev-669b792c77bbc30e9f4d9c95dbc918dc348c49c2.tar.xz linux-dev-669b792c77bbc30e9f4d9c95dbc918dc348c49c2.zip | |
Blackfin arch: Clean up trace buffer handling, No major functional changes.
Turns on trace earlier, so crashes at kernel start should print out a
trace, making things easier to debug.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 07c1cfdc958e..a86bf6545781 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -194,6 +194,17 @@ void __init setup_arch(char **cmdline_p) /* this give a chance to get printk() working before crash. */ #endif + printk(KERN_INFO "Hardware Trace "); + if (bfin_read_TBUFCTL() & 0x1 ) + printk("Active "); + else + printk("Off "); + if (bfin_read_TBUFCTL() & 0x2) + printk("and Enabled\n"); + else + printk("and Disabled\n"); + + #if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH) /* we need to initialize the Flashrom device here since we might * do things with flash early on in the boot @@ -397,9 +408,6 @@ void __init setup_arch(char **cmdline_p) _bfin_swrst = bfin_read_SWRST(); #endif - printk(KERN_INFO "Hardware Trace Enabled\n"); - bfin_write_TBUFCTL(0x03); - /* 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, |