Commit Graph

9 Commits

Author SHA1 Message Date
Wolfgang Denk
25ddd1fb0a Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough.  This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool.  In the result, all definitions of this value can be
deleted from the board config files.  We have to make sure that all
files that reference such data include the new <asm-offsets.h> file.

No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-26 21:05:30 +02:00
Wolfgang Denk
553f09823c Rename CONFIG_SYS_INIT_RAM_END into CONFIG_SYS_INIT_RAM_SIZE
CONFIG_SYS_INIT_RAM_END was a misnomer as it suggests this might be
some end address; to make the meaning more clear we rename it into
CONFIG_SYS_INIT_RAM_SIZE

No other code changes are performed in this patch, only minor editing
of white space (due to the changed length) and the comments was done,
where noticed.

Note that the code for the PATI and cmi_mpc5xx board configurations
looks seriously broken.  Last known maintainers on Cc:

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Denis Peter <d.peter@mpl.ch>
Cc: Martin Winistoerfer <martinwinistoerfer@gmx.ch>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-26 21:03:25 +02:00
Joakim Tjernlund
d1e0b10acc powerpc: do not fixup NULL ptrs
The fixup routine must not fixup NULL pointers.
Problem can be seen by
 char *testfun(void) __attribute__((weak));
 char *(*myfun)(void) = testfun;

Then add
  printf("myfun:%p, &myfun:%p\n", myfun, &myfun);
before relocation and after relocation.
myfun should be NULL in both cases but it is not.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
2010-10-18 22:39:37 +02:00
Peter Tyser
d98b0523cf powerpc: Cleanup BOOTFLAG_* references
Now that warm booting is not supported, there isn't a need for the
BOOTFLAG_COLD and BOOTFLAG_WARM defines, so remove them.

Note that this change makes the board info bd_bootflags field useless.
It will always be set to 0, but we leave it around so that we don't
break the board info structure that some OSes are expecting to be passed
from U-Boot.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-10-18 22:38:56 +02:00
Peter Tyser
52ebd9c1e5 powerpc: Remove warm reset entry point
No boards utilize the warm reset entry point, so remove it.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-10-12 23:01:32 +02:00
Wolfgang Denk
54841ab50c Make sure that argv[] argument pointers are not modified.
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 <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-07-04 23:55:42 +02:00
Wolfgang Denk
953b7e6291 Remove AmigaOneG3SE board
The AmigaOneG3SE board has been orphaned or a very long time, and
broken for more than 12 releases resp. more than 3 years.  As nobody
seems to be interested any more in this stuff we may as well ged rid
of it, especially as it clutters many areas of the code so it is a
continuous pain for all kinds of ongoing work.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-06-23 23:24:20 +02:00
Wolfgang Denk
ee80fa7b6e Get rid of bogus CONFIG_SYS_BUS_HZ and CONFIG_SYS_CONFIG_BUS_CLK definitions
CONFIG_SYS_BUS_HZ has not really been used anywhere except to be
redined as CONFIG_SYS_BUS_CLK; in addition, the mpc7448hpc2 had the
bogus CONFIG_SYS_CONFIG_BUS_CLK setting which duplicated the
funtionality.  Change all this to use CONFIG_SYS_BUS_CLK consistently.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Frank Gottschling <fgottschling@eltec.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Cc: Eran Man <eran@nbase.co.il>
Cc: Stefan Roese <sr@denx.de>
Cc: Nye Liu <nyet@zumanetworks.com>
Cc: Roy Zang <tie-fei.zang@freescale.com>
2010-06-23 23:24:11 +02:00
Stefan Roese
a47a12becf Move arch/ppc to arch/powerpc
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 <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>
2010-04-21 23:42:38 +02:00