u-boot.git/examples/api/libgenwrap.c, branch v2016.11-rc2

lib/tiny-printf.c: Add tiny printf function for space limited environments

2015-11-23T15:56:07+00:00

This patch adds a small printf() version that supports all basic formats.
Its intented to be used in U-Boot SPL versions on platforms with very
limited internal RAM sizes.

To enable it, just define CONFIG_USE_TINY_PRINTF in your defconfig. This
will result in the SPL using this tiny function and the main U-Boot
still using the full-blown printf() function.

This code was copied from:
http://www.sparetimelabs.com/printfrevisited
With mostly only coding style related changes so that its checkpatch
clean.

The size reduction is about 2.5KiB. Here a comparison for the db-mv784mp-gp
(Marvell AXP) SPL:

Without this patch:
  58963   18536    1928   79427   13643 ./spl/u-boot-spl

With this patch:
  56542   18536    1956   77034   12cea ./spl/u-boot-spl

Note:
To make it possible to compile tiny-printf.c instead of vsprintf.c when
CONFIG_USE_TINY_PRINTF is defined, the functions printf() and vprintf() are
moved from common/console.c into vsprintf.c in this patch.

Signed-off-by: Stefan Roese 
Cc: Simon Glass 
Cc: Hans de Goede 
Cc: Tom Rini 
Cc: Albert Aribaud

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini

examples: update do_reset prototype

2011-01-09T16:53:45+00:00

One more place that was missed during the do_reset() unification.

Signed-off-by: Mike Frysinger

Make *printf() return "int" instead of "void"

2010-07-04T21:51:49+00:00

Change the return type of the *printf() functions to the standard
"int"; no changes are needed but returning the already available
length count.

This will save a few additional strlen() calls later...

Signed-off-by: Wolfgang Denk

Rename lib_generic/ to lib/

2010-04-13T07:13:04+00:00

Now that the other architecture-specific lib directories have been
moved out of the top-level directory there's not much reason to have the
'_generic' suffix on the common lib directory.

Signed-off-by: Peter Tyser

Generic udelay() with watchdog support

2009-12-05T00:08:53+00:00

According to the PPC reference implementation the udelay() function is
responsible for resetting the watchdog timer as frequently as needed.
Most other architectures do not meet that requirement, so long-running
operations might result in a watchdog reset.

This patch adds a generic udelay() function which takes care of
resetting the watchdog before calling an architecture-specific
__udelay().

Signed-off-by: Ingo van Lil

Move api_examples to examples/api

2009-07-21T07:23:36+00:00

Also add a rule to remove demo.bin which was previously leftover
after a "make clean"

Signed-off-by: Peter Tyser