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* kbuild, blackfin: Add CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEEDMasahiro Yamada2014-03-07-13/+0
| | | | | | | | | | | | | | | | | | | | | | Many (but not all) of Blackfin boards give -O2 option to compile under lib/ directory. That means lib/ should be speed-optimized, whereas other parts should be size-optimized. We want to keep the same behavior, but do not want to parse board/*/config.mk again and again. We've got no choice but to invent a new method. CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED, if it is enabled, gives -O2 flag only for building under lib/ directory. Dirty codes which I had marked as "FIX ME" in board/${BOARD}/config.mk have been deleted. Instead, CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED has been defined in include/configs/${BOARD}.h. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Sonic Zhang <sonic.zhang@analog.com>
* kbuild: use Linux Kernel build scriptsMasahiro Yamada2014-02-19-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* blackfin: convert makefiles to Kbuild styleMasahiro Yamada2013-11-01-21/+1
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Sonic Zhang <sonic.zhang@analog.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-34/+2
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* punt unused clean/distclean targetsMike Frysinger2011-10-15-6/+0
| | | | | | | | | | The top level Makefile does not do any recursion into subdirs when cleaning, so these clean/distclean targets in random arch/board dirs never get used. Punt them all. MAKEALL didn't report any errors related to this that I could see. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: boards: build zlib dir with -O2Mike Frysinger2011-06-03-0/+1
| | | | | | | Now that the zlib code has been relocated to a dedicated subdir, make sure we still build it with -O2 for boards that want speed over size. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: move CONFIG_BFIN_CPU back to board config.hMike Frysinger2011-04-08-2/+0
| | | | | | This is a revert of 821ad16fa9900c as Wolfgang doesn't like the new code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: unify bootmode based LDR_FLAGS setupMike Frysinger2011-04-08-3/+0
| | | | | | Unify this convention for all Blackfin boards. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: drop CONFIG_SYS_TEXT_BASE from boardsMike Frysinger2011-04-08-3/+0
| | | | | | | We don't want/use this value for Blackfin boards, so punt it and have the common code error out when people try to use it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-17-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk2010-10-18-1/+1
| | | | | | | | | | | | The change is currently needed to be able to remove the board configuration scripting from the top level Makefile and replace it by a simple, table driven script. Moving this configuration setting into the "CONFIG_*" name space is also desirable because it is needed if we ever should move forward to a Kconfig driven configuration system. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Blackfin: move CONFIG_BFIN_CPU to board config.mkMike Frysinger2010-10-02-0/+2
| | | | | | | | | The CONFIG_BFIN_CPU option is largely used in the build system, so move it out of the board config.h and into the board config.mk. It'd be nice to keep everything in the config.h, but the patch to extract that value early was rejected. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: unify gpio cfi implementationsMike Frysinger2010-10-02-71/+4
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert gpio flash logic to common gpio layerMike Frysinger2010-07-05-12/+9
| | | | | | Use the common gpio layer rather than bang on MMRs directly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: unify custom gpio commandsMike Frysinger2010-07-05-75/+1
| | | | | | | 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>
* Make sure that argv[] argument pointers are not modified.Wolfgang Denk2010-07-04-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Rename lib_generic/ to lib/Peter Tyser2010-04-13-2/+2
| | | | | | | | 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 <ptyser@xes-inc.com>
* Change directory-specific CFLAGS to use full pathPeter Tyser2010-04-13-1/+1
| | | | | | | | | | | | | | | | | | Previously, a specific file or directory could be compiled with custom CFLAGS by adding a Makefile variable such as: CFLAGS_dlmalloc.o = <custom flags for common/dlmalloc.c> or CFLAGS_lib = <custom flags for lib directory> This method breaks down once multiple files or directories share the same path. Eg FLAGS_fileA = <custom flags> would incorrectly result in both dir1/fileA.c and dir2/fileA.c being compiled with <custom flags>. This change allows finer grained control which we need once we move lib_$ARCH to arch/$ARCH/lib/ and lib_generic/ to lib/. Without this change all lib/ directories would share the same custom CFLAGS. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* Blackfin: kill off useless initdram() usageMike Frysinger2010-01-17-7/+0
| | | | | | | While the initdram() function makes sense on some arches, it doesn't for Blackfin systems as it's always implemented the same way. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix typos in gpio commentsMike Frysinger2009-08-23-3/+3
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: enable -O2 in lib_generic/ for ADI/Bluetechnix boardsMike Frysinger2009-06-15-0/+3
| | | | | | | Building the compression code in lib_generic/ with -O2 rather than -Os gives a nice speed boost without too much code size increase. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: unify u-boot linker scriptsMike Frysinger2009-06-14-131/+1
| | | | | | | | | | | 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>
* Blackfin: cm-bf527: new board portMike Frysinger2009-06-14-0/+440
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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