linux-toradex.git/arch/blackfin/kernel/early_printk.c, branch v3.2.55

Blackfin: mass clean up of copyright/licensing info

2009-10-07T08:36:26+00:00

Bill Gatliff & David Brownell pointed out we were missing some
copyrights, and licensing terms in some of the files in
./arch/blackfin, so this fixes things, and cleans them up.

It also removes:
 - verbose GPL text(refer to the top level ./COPYING file)
 - file names (you are looking at the file)
 - bug url (it's in the ./MAINTAINERS file)
 - "or later" on GPL-2, when we did not have that right

It also allows some Blackfin-specific assembly files to be under a BSD
like license (for people to use them outside of Linux).

Signed-off-by: Robin Getz 
Signed-off-by: Mike Frysinger

Blackfin: catch hardware errors earlier during booting

2009-09-17T01:31:44+00:00

Allow hardware errors to be caught during early portions of booting, and
leave something in the shadow console that people can use to debug their
system with (to be printed out by the bootloader on next reset).

This enables the hardare error interrupts in head.S, allowing us to find
hardware errors when they happen (well, as much as you can with a hardware
error) and prints out the trace if it is enabled.  This will catch errors
(like booting the wrong image on a 533) which previously resulted in a
infinite loop/hang, as well as random hardware errors before before
setup_arch().

To disable this debug only feature - turn off EARLY_PRINTK.

Signed-off-by: Robin Getz 
Signed-off-by: Mike Frysinger

Blackfin: do not configure the UART early if on wrong processor

2009-06-13T11:20:10+00:00

Before we configure the early UART, check to make sure we are running on
the expected processor - otherwise, we cause problems by configuring pins
that don't exist (and causing an infinite loop of faults).

Signed-off-by: Robin Getz 
Signed-off-by: Mike Frysinger

Blackfin: convert early_printk EVT init to a loop

2009-06-12T10:12:01+00:00

The EVT registers are all contiguous in the memory map, so using a loop to
initialize them all rather than hardcoding the list results in much better
generated code (a hardware loop rather than a whole bunch of individual
loads).

Signed-off-by: Mike Frysinger

Blackfin arch: fix typo in early printk bit size processing

2009-01-07T15:14:39+00:00

Signed-off-by: Mike Frysinger 
Signed-off-by: Bryan Wu

Blackfin arch: emulate a TTY over the EMUDAT/JTAG interface

2008-10-10T09:37:52+00:00

Signed-off-by: Mike Frysinger 
Signed-off-by: Bryan Wu

[Blackfin] arch: Spelling fixes

2007-12-24T12:03:51+00:00

Signed-off-by: Joe Perches 
Signed-off-by: Mike Frysinger 
Signed-off-by: Bryan Wu

[Blackfin] arch: Clean up dump_bfin_mem

2007-12-23T14:57:01+00:00

Clean up dump_bfin_mem so that it will display
content from the kernel, as well as l1 instruction, when deferred
HW errors happen, print out the last frame info if it makes sense.

Signed-off-by: Robin Getz 
Signed-off-by: Bryan Wu

Blackfin arch: split apart dump_bfin_regs and merge/remove show_regs from process.c, which was largely duplicated

2007-11-21T08:46:49+00:00

Signed-off-by: Mike Frysinger 
Signed-off-by: Bryan Wu

Blackfin arch: Print out debug info, as early as possible

2007-10-09T09:31:46+00:00

Print out debug info, as early as possible - even before the
kernel initializes the interrupt vectors. Now we can print out debug
messages almost anytime during the boot process.

Signed-off-by: Robin Getz 
Signed-off-by: Bryan Wu