Commit graph

17 commits

Author SHA1 Message Date
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
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 <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Michael Zaidman
800eb09641 POST cleanup.
- Revives POST for blackfin arch;
- Removes redundant code:
     arch/blackfin/lib/post.c
     arch/powerpc/cpu/ppc4xx/commproc.c
     arch/powerpc/cpu/mpc512x/common.c
- fixes up the post_word_{load|store} usage.

Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Acked-by: Detlev Zundel <dzu@denx.de>
Tested-by: Anatolij Gustschin <agust@denx.de>

List of the maintainers of the affected by patch boards:
Cc: Stephan Linz <linz@li-pro.net>
Cc: Denis Peter <d.peter@mpl.ch>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Niklaus Giger <niklaus.giger@netstal.com>
Cc: Larry Johnson <lrj@acm.org>
Cc: Feng Kan <fkan@amcc.com>
2010-09-21 21:39:31 +02:00
Mike Frysinger
c5530555f8 Blackfin: unify custom gpio commands
Now that we have a unified gpio layer, the misc partial gpio commands
can be unified and made complete (support all possible gpios).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-07-05 05:30:07 -04:00
Mike Frysinger
7393a09800 Blackfin: bf537-stamp: drop old spi_flash driver
The new common spi framework and spi flash subsystem provides all the same
functionality as the old Blackfin-specific driver, so punt the old one as
it has been sticking around long enough.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-07-05 04:18:18 -04:00
Mike Frysinger
cd84423a09 mtd: nand: new base driver for memory mapped nand devices
The BF537-STAMP Blackfin board had a driver for working with NAND devices
that are simply memory mapped.  Since there is nothing Blackfin specific
about this, generalize the driver a bit so that everyone can leverage it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2009-07-07 17:58:04 -05:00
Mike Frysinger
9ff67e5e4c Blackfin: unify u-boot linker scripts
All the Blackfin linker scripts were duplicated across the board dirs with
no difference save from the semi-often used ENV_IS_EMBEDDED option.  So
unify all of them in the lib_blackfin/ dir and for the few boards that
need to embedded the environment directly, add a LDS_BOARD_TEXT define for
them to customize via their board config file.  This is much simpler than
forcing them to duplicate the rest of the linker script.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-14 20:01:14 -04:00
Mike Frysinger
d248cfb2d9 Blackfin: bf537-stamp: split CF/IDE code out into dedicated cf-ide.c
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-02 06:42:00 -04:00
Mike Frysinger
4de1a5daab Blackfin: bf537-stamp: split post code out into dedicated post.c
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-24 20:36:31 -04:00
Mike Frysinger
bc683f58b1 Blackfin: bf537-stamp: move CONFIG_POST handling to COBJS-$(...)
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-23 15:14:52 -04:00
Mike Frysinger
1f4a3bb503 Blackfin: convert old boards to use COBJS-y Makefile style
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-28 13:27:28 -05:00
Mike Frysinger
e7e684b10d Blackfin: fix out-of-tree building with ldscripts
Many of the Blackfin board linker scripts are preprocessed, so make sure we
output the linker script into the build tree rather than the source tree.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-07 02:59:50 -05:00
Wolfgang Denk
c8a3b109f0 Cleanup out-or-tree building for some boards (.depend)
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-02 23:49:18 +02:00
Mike Frysinger
9171fc8172 Blackfin: unify cpu and boot modes
All of the duplicated code for Blackfin processors and boot modes have been
unified.  After all, the core is the same for all processors, just the
peripheral set differs (which gets handled in the drivers).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-30 15:50:19 -04:00
Mike Frysinger
9ce7e53abd Blackfin: BF537-stamp: cleanup spi flash driver
This punts the old spi flash driver for a new/generalized one until the
common one can be integrated.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-30 15:13:42 -04:00
Mike Frysinger
395bce4f59 net/Blackfin: move on-chip MAC driver into drivers/net/
The Blackfin on-chip MAC driver was being managed in the BF537-STAMP board
directory, but it is not board specific, so relocate it to the drivers dir
so that other Blackfin ports can utilize it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-25 22:35:26 +01:00
Mike Frysinger
1f2a997010 Blackfin: BF537-stamp: drop board-specific flash driver for CFI
The parallel flash on the BF537-STAMP is CFI compliant, so there is no need
for the board specific driver at all.  Just use the common CFI driver.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-15 22:17:21 -04:00
Aubrey Li
26bf7deca3 [Blackfin][PATCH] Add BF537 stamp board support 2007-03-19 01:24:52 +08:00