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* ARM: compiler options cleanup - improve tool chain supportWolfgang Denk2009-08-21-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For some time there have been repeated reports about build problems with some ARM (cross) tool chains. Especially issues about (in)compatibility with the tool chain provided runtime support library libgcc.a caused to add and support a private implementation of such runtime support code in U-Boot. A closer look at the code indicated that some of these issues are actually home-made. This patch attempts to clean up some of the most obvious problems and make building of U-Boot with different tool chains easier: - Even though all ARM systems basicy used the same compiler options to select a specific ABI from the tool chain, the code for this was distributed over all cpu/*/config.mk files. We move this one level up into lib_arm/config.mk instead. - So far, we only checked if "-mapcs-32" was supported by the tool chain; if yes, this was used, if not, "-mabi=apcs-gnu" was selected, no matter if the tool chain actually understood this option. There was no support for EABI conformant tool chains. This patch implements the following logic: 1) If the tool chain supports "-mabi=aapcs-linux -mno-thumb-interwork" we use these options (EABI conformant tool chain). 2) Otherwise, we check first if "-mapcs-32" is supported, and then check for "-mabi=apcs-gnu" If one test succeeds, we use the first found option. 3) In case 2), we also test if "-mno-thumb-interwork", and use this if the test succeeds. [For "-mabi=aapcs-linux" we set "-mno-thumb-interwork" mandatorily.] This way we use a similar logic for the compile options as the Linux kernel does. - Some EABI conformant tool chains cause external references to utility functions like raise(); such functions are provided in the new file lib_arm/eabi_compat.c Note that lib_arm/config.mk gets parsed several times, so we must make sure to add eabi_compat.o only once to the linker list. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Dirk Behme <dirk.behme@googlemail.com> Cc: Magnus Lilja <lilja.magnus@gmail.com> Cc: Tom Rix <Tom.Rix@windriver.com> Cc: Prafulla Wadaskar <prafulla@marvell.com> Acked-by: Sergey Kubushyn <ksi@koi8.net> Tested-by: Magnus Lilja <lilja.magnus@gmail.com> Tested-by: Andrzej Wolski <awolski@poczta.fm> Tested-by: Gaye Abdoulaye Walsimou <walsimou@walsimou.com> Tested-by: Tom Rix <Tom.Rix@windriver.com> Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* lh7a40x: move serial driver to drivers/serialJean-Christophe PLAGNIOL-VILLARD2009-06-12-185/+1
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* arm: remove cpu_initJean-Christophe PLAGNIOL-VILLARD2009-06-12-5/+0
| | | | | | move s3c44b0 to arch_cpu_init and as noone use cpu_init remove it Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* arm: unify interrupt initJean-Christophe PLAGNIOL-VILLARD2009-06-12-11/+0
| | | | | | | all arm init the IRQ stack the same way so unify it in lib_arm/interrupts.c and then call arch specific interrupt init Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* arm: unify linker scriptJean-Christophe PLAGNIOL-VILLARD2009-06-12-0/+56
| | | | | | | | | | | | all arm boards except a few use the same cpu linker script so move it to cpu/$(CPU) that could be overwrite in following order SOC BOARD via the corresponding config.mk Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* arm920/926/926: remove non needed headerJean-Christophe PLAGNIOL-VILLARD2009-06-12-2/+0
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* arm: timer and interrupt init reworkJean-Christophe PLAGNIOL-VILLARD2009-06-12-2/+2
| | | | | | | | | | | | | | actually the timer init use the interrupt_init as init callback which make the interrupt and timer implementation difficult to follow so now rename it as int timer_init(void) and use interrupt_init for interrupt btw also remane the corresponding file to the functionnality implemented as ixp arch implement two timer - one based on interrupt - so all the timer related code is moved to timer.c Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Fix e-mail address of Gary Jennejohn.Detlev Zundel2009-05-15-5/+5
| | | | Signed-off-by: Detlev Zundel <dzu@denx.de>
* arm: unify reset commandJean-Christophe PLAGNIOL-VILLARD2009-04-05-9/+0
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* arm: clean cache managementJean-Christophe PLAGNIOL-VILLARD2009-04-05-60/+10
| | | | | | unify arm cache management except for non standard cache as ARM7TDMI Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* arm: update co-processor 15 accessJean-Christophe PLAGNIOL-VILLARD2009-04-05-55/+13
| | | | | | import system.h from linux Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Remove compiler warning: target CPU does not support interworkingSergei Poselenov2008-12-13-0/+1
| | | | | | | This warning is issued by modern ARM-EABI GCC on non-thumb targets. Signed-off-by: Vladimir Panfilov <pvr@emcraft.com> Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-18-12/+12
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Big white-space cleanup.Wolfgang Denk2008-05-21-10/+10
| | | | | | | | | | | This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
* ARM: cleanup duplicated exception handlingcodeAndreas Engel2008-02-14-135/+0
| | | | | | Move duplicated exception handling code into lib_arm. Signed-off-by: Andreas Engel <andreas.engel@ericsson.com>
* Move "ar" flags to config.mk to allow for silent "make -s"Wolfgang Denk2006-10-09-1/+1
| | | | Based on patch by Mike Frysinger, 20 Jun 2006
* Add support for a saving build objects in a separate directory.Marian Balakowicz2006-09-01-7/+11
| | | | | | | | | | | | | | | | | | | | | 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.
* GCC-4.x fixes: clean up global data pointer initialization for all boards.Wolfgang Denk2006-03-31-3/+6
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* Update ARM Integrator boards:Wolfgang Denk2005-10-04-1/+0
| | | | | | | Correct addessing errors in platform files. Split off common core module data from Integrator header files to include/armcoremodule.h. Patch by Peter Pearse, 04 Oct 2005
* Make sure only supported compiler options are usedWolfgang Denk2005-10-04-2/+10
| | | | | | Import "cc-option" shell function from kernel and use it to get the correct ARM GCC options for individual CPUs Patch by Peter Pearse, 30 Jun 2005
* Patch by Steven Scholz, 4 Apr 2005:wdenk2005-04-04-1/+3
| | | | | | - remove all references to CONFIG_INIT_CRITICAL for ARM based boards - introduce two new configuration options instead: CONFIG_SKIP_LOWLEVEL_INIT and CONFIG_SKIP_RELOCATE_UBOOT
* Fix timer code for ARM systems: make sure that udelay() does notwdenk2005-04-04-6/+10
| | | | reset timers so it's save to use udelay() in timeout code.
* Patch by Steven Scholz, 25 Oct 2004:wdenk2005-04-03-3/+0
| | | | Declare reset_cpu() in include/common.h instead locally
* Prepare for SoC rework of ARM code:wdenk2005-04-02-2/+2
| | | | | - rename CONFIG_BOOTBINFUNC into CONFIG_INIT_CRITICAL - rename memsetup into lowlevel_init (function name and source files)
* * Patch by Jon Loeliger, 02 Sep 2004:wdenk2005-01-09-1/+1
| | | | | | | | | | | | | | Reset monitor size back to 256 so environment can be written to flash on MPC85xx ADS and CDS releases. * Patch by Paolo Broggini, 02 Sep 2004: Make BSS clearing on ARM systems more robust * Patch by Yue Hu and Joe, 01 Sep 2004: - add PCI support for ixp425; - add EEPRO100 suppor tfor ixdp425 board. * Fix problem with protected sector detection in driver/cfi_flash.c
* * Patch by Paul Ruhland, 10 Jun 2004:wdenk2004-06-10-10/+10
| | | | | | | | fix support for Logic SDK-LH7A404 board and clean up the LH7A404 register macros. * Patch by Matthew McClintock, 10 Jun 2004: Modify code to select correct serial clock on Sandpoint8245
* * Patch by Paul Ruhland, 17 May 2004:wdenk2004-06-09-0/+1271
- Add support for the Logic Zoom LH7A40x based SDK board(s), specifically the LPD7A400. * Patches by Robert Schwebel, 15 May 2004: - call MAC address reading code also for SMSC91C111; - make SMSC91C111 timeout configurable, remove duplicate code - fix get_timer() for PXA - update doc/README.JFFS2 - use "bootfile" env variable also for jffs2
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