u-boot.git/board/amcc, branch v2011.06

Fix incorrect use of getenv() before relocation

2011-05-12T17:48:42+00:00

A large number of boards incorrectly used getenv() in their board init
code running before relocation.  In some cases this caused U-Boot to
hang when certain environment variables grew too long.
Fix the code to use getenv_r().

Signed-off-by: Wolfgang Denk 
Cc: Stefan Roese 
Cc: The LEOX team 
Cc: Michael Schwingen 
Cc: Georg Schardt 
Cc: Werner Pfister 
Cc: Dirk Eibach 
Cc: Peter De Schrijver 
Cc: John Zhan 
Cc: Rishi Bhattacharya 
Cc: Peter Tyser

Handle most LDSCRIPT setting centrally

2011-04-29T22:59:47+00:00

Currently, some linker scripts are found by common code in config.mk.
Some are found using CONFIG_SYS_LDSCRIPT, but the code for that is
sometimes in arch config.mk and sometimes in board config.mk.  Some
are found using an arch-specific rule for looking in CPUDIR, etc.

Further, the powerpc config.mk rule relied on CONFIG_NAND_SPL
when it really wanted CONFIG_NAND_U_BOOT -- which covered up the fact
that not all NAND_U_BOOT builds actually wanted CPUDIR/u-boot-nand.lds.

Replace all of this -- except for a handful of boards that are actually
selecting a linker script in a unique way -- with centralized ldscript
finding.

If board code specifies LDSCRIPT, that will be used.
Otherwise, if CONFIG_SYS_LDSCRIPT is specified, that will be used.

If neither of these are specified, then the central config.mk will
check for the existence of the following, in order:

$(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT)
$(TOPDIR)/$(CPUDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT)
$(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
$(TOPDIR)/$(CPUDIR)/u-boot.lds

Some boards (sc3, cm5200, munices) provided their own u-boot.lds that
were dead code, because they were overridden by a CPUDIR u-boot.lds under
the old powerpc rules.  These boards' own u-boot.lds have bitrotted and
no longer work -- these lds files have been removed.

Signed-off-by: Scott Wood 
Tested-by: Graeme Russ

rename _end to __bss_end__

2011-03-27T17:18:37+00:00

Currently, _end is used for end of BSS section.  We want _end to mean
end of u-boot image, so we rename _end to __bss_end__ first.

Signed-off-by: Po-Yu Chuang

PPC4xx: Reduce NAND TLB window size on Canyonlands

2011-01-10T11:50:29+00:00

16MiB NAND TLB window is way too big. Reduce it to 1KiB.

Signed-off-by: Felix Radensky 
Signed-off-by: Stefan Roese

ppc4xx: Fix missing linker scripts for partial linking

2010-12-15T12:16:33+00:00

This patch fixes the acadia_nand and kilauea_nand linker scripts
which have been missing in commit ee8028b7 [ppc4xx: Cleanup for
partial linking and --gc-sections]

Signed-off-by: Stefan Roese 
Cc: Bernhard Weirich

ppc4xx: Cleanup for partial linking and --gc-sections

2010-11-27T22:35:09+00:00

This commit adapts 4xx boards for partial linking with --gc-sections.

Signed-off-by: Stefan Roese 
Signed-off-by: Wolfgang Denk 
Cc: Stefan Roese 
Cc: Tirumala Marri 
Cc: David Updegraff 
Cc: Matthias Fuchs 
Cc: Dirk Eibach 
Cc: Larry Johnson 
Cc: Peter De Schrijver 
Cc: Niklaus Giger 
Cc: Daniel Poirot 
Acked-by: Stefan Roese

ppc4xx: Fix build problems of IBM DDR2 NAND booting targets

2010-11-26T21:08:19+00:00

This change is needed to compile the PPC4xx NAND booting targets
equipped with the IBM DDR2 SDRAM controller.

Signed-off-by: Stefan Roese 
Cc: Wolfgang Denk 
Acked-by: Stefan Roese

Switch from archive libraries to partial linking

2010-11-17T20:02:18+00:00

Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier

Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value

2010-10-26T19:05:30+00:00

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  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 
Acked-by: Kumar Gala

ppc4xx: Enable NOR flash support in sequoia_ramboot target

2010-10-20T08:08:16+00:00

Until now, the Sequoia RAM-booting image disabled NOR flash support
as this image was mainly created for NAND-only boards. This patch
now enables NOR flash support for this RAM-booting version as well.

Signed-off-by: Stefan Roese