u-boot.git/examples, branch v2010.09

MIPS: update the MIPS u-boot.lds

2010-09-04T02:52:17+00:00

From the document, if set all arguments in "OUTPUT_FORMAT" to
"tradbigmips", then even add "-EL" to gcc we still get EB format.

pb1x00 is only used in Little-endian, so its default endian should be
set to LE.

Signed-off-by: Xiangfu Liu 
Signed-off-by: Shinya Kuribayashi

smc91xx_eeprom: Correct chip detection check.

2010-07-12T07:14:29+00:00

The smc911x_detect function in /net/driver/net/smc911x.c
returns a 0 if everything was ok (a chip was found) and -1 else.
In the standalone example 'smc911x_eeprom' the return value
of smc911x_detect is interpreted in a different way
(0 for error, !0 as OK).
This leads to the error that the chip will not be detected.

Signed-off-by: Juergen Kilb 
Acked-by: Mike Frysinger 

Signed-off-by: Ben Warren

Make sure that argv[] argument pointers are not modified.

2010-07-04T21:55:42+00:00

The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands.  Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".

This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:

int main (int argc, char **argv)
{
	while (--argc > 0 && **++argv == '-') {
/* ====> */	while (*++*argv) {
			switch (**argv) {
			case 'd':
				debug++;
				break;
			...
			default:
				usage ();
			}
		}
	}
	...
}

The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell.  With the modification, the compiler will prevent this with
an
	error: increment of read-only location '*argv'

N.B.: The code above can be trivially rewritten like this:

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			...

Signed-off-by: Wolfgang Denk 
Acked-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

examples/standalone: Remove relocation compile flags for PowerPC

2010-06-29T20:29:13+00:00

Previously, standalone applications were compiled with gcc flags that
produced relocatable executables on the PowerPC architecture (eg with
the -mrelocatable and -fPIC flags).  There's no reason for these
applications to be fully relocatable at this time since no relocation
fixups are performed on standalone applications.

Additionally, removing the gcc relocation flags results in the entry
point of applications residing at the base of the image.  When
a standalone application was relocatable, the entry point was generally
located at an offset into the image which was confusing and prone to
errors.

This change moves the entry point of PowerPC standalone applications
from 0x40004 (usually) to 0x40000.

Signed-off-by: Peter Tyser 
Signed-off-by: Wolfgang Denk

nios: remove nios-32 arch

2010-05-28T14:56:04+00:00

The nios-32 arch is obsolete and broken. So it is removed.

Signed-off-by: Thomas Chou

nios2: fix r15 issue for gcc4

2010-05-28T14:56:03+00:00

The "-ffixed-r15" option doesn't work well for gcc4. Since we
don't use gp for small data with option "-G0", we can use gp
as global data pointer. This allows compiler to use r15. It
is necessary for gcc4 to work properly.

Signed-off-by: Thomas Chou 
Signed-off-by: Scott McNutt

Move arch/ppc to arch/powerpc

2010-04-21T21:42:38+00:00

As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese 
Acked-by: Wolfgang Denk 
Acked-by: Detlev Zundel 
Acked-by: Kim Phillips 
Cc: Peter Tyser 
Cc: Anatolij Gustschin

ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU

2010-04-13T07:13:16+00:00

Signed-off-by: Peter Tyser

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