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2009-12-05Generic udelay() with watchdog supportIngo van Lil
According to the PPC reference implementation the udelay() function is responsible for resetting the watchdog timer as frequently as needed. Most other architectures do not meet that requirement, so long-running operations might result in a watchdog reset. This patch adds a generic udelay() function which takes care of resetting the watchdog before calling an architecture-specific __udelay(). Signed-off-by: Ingo van Lil <inguin@gmx.de>
2009-09-04arm: Remove -fno-strict-aliasingKumar Gala
-fno-strict-aliasing is hidding warnings. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-21ARM: compiler options cleanup - improve tool chain supportWolfgang Denk
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>
2009-06-12arm: remove cpu_initJean-Christophe PLAGNIOL-VILLARD
move s3c44b0 to arch_cpu_init and as noone use cpu_init remove it Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-06-12arm: unify linker scriptJean-Christophe PLAGNIOL-VILLARD
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>
2009-06-12arm: timer and interrupt init reworkJean-Christophe PLAGNIOL-VILLARD
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>
2009-04-05Merge branch 'master' of git://git.denx.de/u-boot-armWolfgang Denk
2009-04-05arm: unify reset commandJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-04-05Update CHANGELOG, coding style cleanup.Wolfgang Denk
2009-03-29s3c44b0: extract cache from cpu.cJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-29s3c44b0: move serial driver to drivers/serialJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-29s3c44b0: move rtc driver to drivers/rtcJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-29s3c44b0: move i2c driver to drivers/i2cJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-12-13Remove compiler warning: target CPU does not support interworkingSergei Poselenov
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>
2008-10-21Cleanup: fix "MHz" spellingWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-10-18rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-07rtc: allow rtc_set to return an error and use it in cmd_dateJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-05-21Big white-space cleanup.Wolfgang Denk
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>
2008-03-20LWMON5: POST RTC fixYuri Tikhonov
Modify the RTC API to provide one a status for the time reported by the rtc_get() function: 0 - a reliable time is guaranteed, < 0 - a reliable time isn't guaranteed (power fault, clock issues, and so on). The RTC chip drivers are responsible for providing this info if the corresponding chip supports such functionality. If not - always report that the time is reliable. The POST RTC test was modified to detect the RTC faults utilizing this new rtc_get() feature. Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
2008-02-14ARM: cleanup duplicated exception handlingcodeAndreas Engel
Move duplicated exception handling code into lib_arm. Signed-off-by: Andreas Engel <andreas.engel@ericsson.com>
2006-10-09Move "ar" flags to config.mk to allow for silent "make -s"Wolfgang Denk
Based on patch by Mike Frysinger, 20 Jun 2006
2006-09-01Add support for a saving build objects in a separate directory.Marian Balakowicz
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.
2006-03-31GCC-4.x fixes: clean up global data pointer initialization for all boards.Wolfgang Denk
2005-10-04Update ARM Integrator boards:Wolfgang Denk
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
2005-10-04Make sure only supported compiler options are usedWolfgang Denk
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
2005-04-04Patch by Steven Scholz, 4 Apr 2005:wdenk
- 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
2005-04-04Fix timer code for ARM systems: make sure that udelay() does notwdenk
reset timers so it's save to use udelay() in timeout code.
2005-04-03Patch by Steven Scholz, 25 Oct 2004:wdenk
Declare reset_cpu() in include/common.h instead locally
2005-04-02Prepare for SoC rework of ARM code:wdenk
- rename CONFIG_BOOTBINFUNC into CONFIG_INIT_CRITICAL - rename memsetup into lowlevel_init (function name and source files)
2004-10-17Code cleanup for GCC-3.3.x compilerswdenk
2004-03-14Code cleanup; make several boards compile & link.wdenk
2004-02-24* Patch by Andrea Scian, 17 Feb 2004:wdenk
Add support for S3C44B0 processor and DAVE B2 board * Patch by Steven Scholz, 20 Feb 2004: - Add support for MII commands on AT91RM9200 boards - some cleanup in AT91RM9200 ethernet code
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