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* rename _end to __bss_end__Po-Yu Chuang2011-03-271-1/+1
| | | | | | | 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 <ratbert@faraday-tech.com>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-172-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* update board EB+CPUx9K2Jens Scharsig2010-10-192-5/+3
| | | | | | | * update to support arm reloaction * unnecessary environment variables removed Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>
* Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk2010-10-184-5/+5
| | | | | | | | | | | | 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>
* Make sure that argv[] argument pointers are not modified.Wolfgang Denk2010-07-042-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* m68k: Move cpu/$CPU to arch/m68k/cpu/$CPUPeter Tyser2010-04-131-1/+1
| | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* Rename lib_generic/ to lib/Peter Tyser2010-04-131-4/+4
| | | | | | | | 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>
* new board (eb_cpux9k2)Jens Scharsig2010-02-123-0/+438
| | | | | | | | | | * new board (eb_cpux9k2) * support for EB+CPUx9K2 board by BuS Elektronik GmbH & Co. KG * select via make eb_cpux9k2_config * this also demonstrates, how to use boards with AT91RM9200 cpu in at91 arch tree Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>
* update the EB+MCF-EV123 board supportJens Scharsig2009-07-264-201/+89
| | | | | | | | | | | | | | | This patch updates the support for EB+MCF-EV123 board and needs the [PATCH 1/2 V3] new video driver for bus vcxk framebuffers * remove the board framebuffer driver * use the common bus_vcxk framebuffer driver * adds bmp support * adds splashimage support * fix serveral cosmetical errors Signed-off-by: Jens Scharsig <esw@bus-elektronik.de> [agust@denx.de: fixed some style issues before applying] Signed-off-by: Anatolij Gustschin <agust@denx.de>
* General help message cleanupWolfgang Denk2009-06-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many of the help messages were not really helpful; for example, many commands that take no arguments would not print a correct synopsis line, but "No additional help available." which is not exactly wrong, but not helpful either. Commit ``Make "usage" messages more helpful.'' changed this partially. But it also became clear that lots of "Usage" and "Help" messages (fields "usage" and "help" in struct cmd_tbl_s respective) were actually redundant. This patch cleans this up - for example: Before: => help dtt dtt - Digital Thermometer and Thermostat Usage: dtt - Read temperature from digital thermometer and thermostat. After: => help dtt dtt - Read temperature from Digital Thermometer and Thermostat Usage: dtt Signed-off-by: Wolfgang Denk <wd@denx.de>
* Fix all linker script to handle all rodata sectionsTrent Piepho2009-03-201-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A recent gcc added a new unaligned rodata section called '.rodata.str1.1', which needs to be added the the linker script. Instead of just adding this one section, we use a wildcard ".rodata*" to get all rodata linker section gcc has now and might add in the future. However, '*(.rodata*)' by itself will result in sub-optimal section ordering. The sections will be sorted by object file, which causes extra padding between the unaligned rodata.str.1.1 of one object file and the aligned rodata of the next object file. This is easy to fix by using the SORT_BY_ALIGNMENT command. This patch has not be tested one most of the boards modified. Some boards have a linker script that looks something like this: *(.text) . = ALIGN(16); *(.rodata) *(.rodata.str1.4) *(.eh_frame) I change this to: *(.text) . = ALIGN(16); *(.eh_frame) *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) This means the start of rodata will no longer be 16 bytes aligned. However, the boundary between text and rodata/eh_frame is still aligned to 16 bytes, which is what I think the real purpose of the ALIGN call is. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
* Command usage cleanupPeter Tyser2009-01-281-1/+1
| | | | | | | | Remove command name from all command "usage" fields and update common/command.c to display "name - usage" instead of just "usage". Also remove newlines from command usage fields. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* Standardize command usage messages with cmd_usage()Peter Tyser2009-01-281-1/+1
| | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* ColdFire: Remove platforms mii.c fileTsiChung Liew2008-11-032-305/+1
| | | | | | | | | | | Will use mcfmii.c driver in drivers/net rather than keep creating new mii.c for each future platform. Remove EB+MCF-EV123, cobra5272, idmr, M5235EVB, M5271EVB, M5272C3, M5275EVB, M5282EVB, M5329EVB, M5373EVB, M54451EVB, M54455EVB, M547xEVB, and M548xEVB's mii.c Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-186-41/+41
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* rename environment.c in env_embedded.c to reflect is functionalityJean-Christophe PLAGNIOL-VILLARD2008-09-101-1/+1
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* EB+MCF-EV123 board: fix coding style (alingment)Wolfgang Denk2008-07-141-43/+43
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* EB+MCF-EV123 board: fix syntx errorWolfgang Denk2008-07-141-1/+1
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Code cleanup: fix old style assignment ambiguities like "=-" etc.Wolfgang Denk2008-07-142-2/+2
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Fix compile error caused by incorrect function return typeTsiChung Liew2008-07-111-1/+1
| | | | | | Rename int mii_init(void) to void mii_init(void) Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
* Change initdram() return type to phys_size_tBecky Bruce2008-06-121-1/+1
| | | | | | | | | | | | | | | | | | | This patch changes the return type of initdram() from long int to phys_size_t. This is required for a couple of reasons: long int limits the amount of dram to 2GB, and u-boot in general is moving over to phys_size_t to represent the size of physical memory. phys_size_t is defined as an unsigned long on almost all current platforms. This patch *only* changes the return type of the initdram function (in include/common.h, as well as in each board's implementation of initdram). It does not actually modify the code inside the function on any of the platforms; platforms which wish to support more than 2GB of DRAM will need to modify their initdram() function code. Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc MPC8641HPCN. Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
* Fix config files for out-of-tree buildingWolfgang Denk2008-05-141-1/+1
| | | | | | | | | | | | | | | Several board/<...>/config.mk files include dynamically built (by the Makefile) config files but used the wrong file name of $(TOPDIR)/board/$(BOARDDIR)/config.tmp instead if the correct $(OBJTREE)/board/$(BOARDDIR)/config.tmp The bug is nasty because the build result is correct for the (normal) in-tree builds, and because 'sinclude' is used no errors get raised even for out-of-tree build tests. But out-of-tree builds use an incomplete and thus usually incorrect configuration... Signed-off-by: Wolfgang Denk <wd@denx.de>
* Remove all the search paths from the .lds files.Jason Wessel2008-04-171-1/+0
| | | | | | | The cross compiler is responsible for providing the correct libraries and the logic to find the linking libraries. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
* Fix remaining CONFIG_COMMANDSJean-Christophe PLAGNIOL-VILLARD2008-02-141-1/+1
| | | | | | | update comments Fix coding style Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Fix linker scripts: add NOLOAD atribute to .bss/.sbss sectionsWolfgang Denk2008-01-121-1/+1
| | | | | | | | | | | | | | | | | | | With recent toolchain versions, some boards would not build because or errors like this one (here for ocotea board when building with ELDK 4.2 beta): ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab] For many boards, the .bss section is big enough that it wraps around at the end of the address space (0xFFFFFFFF), so the problem will not be visible unless you use a 64 bit tool chain for development. On some boards however, changes to the code size (due to different optimizations) we bail out with section overlaps like above. The fix is to add the NOLOAD attribute to the .bss and .sbss sections, telling the linker that .bss does not consume any space in the image. Signed-off-by: Wolfgang Denk <wd@denx.de>
* ColdFire: Update EB+MCF-EV123 platformTsiChungLiew2007-08-162-1/+305
| | | | Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com>
* Code cleanup.Wolfgang Denk2006-11-306-20/+20
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* Move "ar" flags to config.mk to allow for silent "make -s"Wolfgang Denk2006-10-091-1/+1
| | | | Based on patch by Mike Frysinger, 20 Jun 2006
* Add support for a saving build objects in a separate directory.Marian Balakowicz2006-09-012-8/+12
| | | | | | | | | | | | | | | | | | | | | Modifications are based on the linux kernel approach and support two use cases: 1) Add O= to the make command line 'make O=/tmp/build all' 2) Set environement variable BUILD_DIR to point to the desired location 'export BUILD_DIR=/tmp/build' 'make' The second approach can also be used with a MAKEALL script 'export BUILD_DIR=/tmp/build' './MAKEALL' Command line 'O=' setting overrides BUILD_DIR environent variable. When none of the above methods is used the local build is performed and the object files are placed in the source directory.
* Minor code cleanup.Wolfgang Denk2006-06-104-5/+5
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* Add MCF5282 support (without preloader)Heiko Schocher2006-04-2010-0/+1221
relocate ichache_State to ram u-boot can run from internal flash Add EB+MCF-EV123 board support. Add m68k Boards to MAKEALL Patch from Jens Scharsig, 08 Aug 2005
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