OpenCellular

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Ronald G. Minnich 79e36d9060 Improve how our printk calls do_div by using constants.

The do_div code has a nice optimization in it when it is called with
constants. The current highly generalized use of it defeats those
optimizations and causes trouble on ARM, resulting in a complex and
buggy code path.

Since we only need to print in bases 8, 10, and 16, do a minor
restructuring of the code so that we call do_div with constants.
If you need base 2, print in base 16 and do it in your head. :-)

This fixes an ongoing problem with ARM, will not harm X86, and will
help PPC should we ever want to support it again.
Plus, I don't have to ever try to understand the div64 assembly and where
it's going wrong :-)

Change-Id: I6a480011916eb0834e05c5bb10909d83330fe797
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2235
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

2013-01-31 23:18:16 +01:00

cbmem_console.c

CBMEM CONSOLE: Add CBMEM console driver implementation.

2012-03-29 20:14:25 +02:00

console.c

Fix console.c with serial support disabled

2013-01-11 20:03:30 +01:00

die.c

remove trailing whitespace

2011-11-01 19:07:45 +01:00

Kconfig

make early serial console support more generic