When using devicetrees the boardinfo (or model) can be obtained
from the devicetree. Add a function to get the boardinfo so that
we have a chance to add information from the devicetree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Normally errno contains a positive error value. A certain unnamed developer
mixed this up while implementing U-Boot-v2. Also, normally errno is never
set to zero by any library function.
This patch fixes this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This shrinks the resulting binary size by ~25%. Exceptions
are still handled in arm mode, so we have to explicitely
put .arm directives into the exception code. Thumb-2 mode
has been tested on i.MX51 Babbage board.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Memory allocation is very simple in u-boot-v2. So, it makes also sense to
add the "operating system" emulation layer into the main memory management
source file, to keep them at one place and simple.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Fixed a bug in sbrk(). When the new mem_brk value returned by
sbrk_no_zero() returns NULL to indicate 'out of memory', sbrk()
still memset()s innocent memory at address NULL.
For some architectures this memory might be empty, so this never
causes a problem. Anyway on Coldfire I still have my vector table
there. Nuking them isn't really a good idea :-)
Signed-off-by: Carsten Schlote <c.schlote@konzeptpark.de>
- Do not zero memory in mem_malloc_init because it takes
a long time with big memory. Instead zero it when we actually
need the memory.
- Add sbrk_no_zero() function to allocate memory without zeroing
it. This is usefull for scratch mem devices which occupy large
chunks of memory