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2014-05-15arm: move exception handling out of start.S filesAlbert ARIBAUD
Exception handling is basically identical for all ARM targets. Factorize it out of the various start.S files and into a single vectors.S file, and adjust linker scripts accordingly. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2014-05-15arm: remove unused _end_vect and _vectors_end symbolsAlbert ARIBAUD
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2014-05-15arm: pxa: move SP check from start.S to cpuinfo.cAlbert ARIBAUD
PXA start.S has a PXA (variant) specific check in start.S. Move it to cpuinfo.c. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Acked-by: Marek Vasut <marex@denx.de>
2014-02-26Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini
Conflicts: arch/arm/cpu/armv7/config.mk board/ti/am43xx/mux.c include/configs/am43xx_evm.h Signed-off-by: Tom Rini <trini@ti.com>
2014-02-26arm: remove unneeded symbol offsets and _TEXT_BASEAlbert ARIBAUD
Remove the last uses of symbol offsets in ARM U-Boot. Remove some needless uses of _TEXT_BASE. Remove all _TEXT_BASE definitions. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2014-02-25kbuild: rename OBJCFLAGS to OBJCOPYFLAGSMasahiro Yamada
Rename OBJCFLAGS to OBJCOPYFLAGS beforehand to use "cmd_objcopy" in scripts/Makefile.lib in an upcoming commit. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-01-24ARM: merge commonly-defined PLATFORM_RELFLAGSMasahiro Yamada
Before this commit, all arch/arm/cpu/${CPU}/config.mk except ARMv8 had the same option: $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) This commit moves it into arch/arm/config.mk. If the compiler does not support the option, it is ignored by $(call cc-option,...). So this commit gives no harm to ARMv8. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-01-13ARM: pxa: Fix OneNAND SPL buildsMarek Vasut
The OneNAND SPL used on PXA is slightly obscure. Due to the OneNAND limitation, where we have only the first 1KiB of the OneNAND available upon power-up as a memory-mapped area, from which the CPU starts executing, we place only the most essential code into this first 1KiB . This code copies the rest of the SPL into SRAM and jumps to it. This code is stored in section .text.0 . The rest of the SPL is stored in section .text.1 . When running the OBJCOPY on the SPL, it will preserve only .text section, but the .text.0 and .text.1 are stripped away from the result, thus making the SPL binary empty. The patch adds additional -j parameters to the OBJCOPY for PXA during the SPL build, which will preserve the .text.0 and .text.1 sections. Moreover, this patch also adds missing functions into the .text.0 section, since otherwise the PXA270 with 1KiB-window OneNAND won't be able to boot. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Tom Rini <trini@ti.com>
2014-01-10Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini
Bringing in the MMC tree means that CONFIG_BOUNCE_BUFFER needed to be added to include/configs/exynos5-dt.h now. Conflicts: include/configs/exynos5250-dt.h Signed-off-by: Tom Rini <trini@ti.com>
2013-12-18ARM: pxa: prevent PXA270 occasional reboot freezesSergei Ianovich
Erratum 71 of PXA270M Processor Family Specification Update (April 19, 2010) explains that watchdog reset time is just 8us insead of 10ms in EMTS. If SDRAM is not reset, it causes memory bus congestion and the device hangs. We put SDRAM in selfresh mode before watchdog reset, removing potential freezes. Signed-off-by: Sergei Ianovich <ynvich@gmail.com> CC: Marek Vasut <marex@denx.de>
2013-12-13ARM:PXA: Correct tick_to_time / us_to_tick to use lldivTom Rini
Cc: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Marek Vasut <marex@denx.de>
2013-10-31ARM: convert makefiles to Kbuild styleMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-10-14Coding Style cleanup: remove trailing white spaceWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de>
2013-09-23ARM: refactor compiler options in config.mkMasahiro Yamada
Every ARM cpu config.mk (arch/arm/cpu/{CPUDIR}/config.mk) defines: PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float So, this patch moves the common compiler options to arch/arm/config.mk. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-06-22pxa: use -mcpu=xscale compiler optionMike Dunn
Pass '-mcpu=xscale' to the compiler instead of march and mtune. This will cause gcc to define the __XSCALE__ macro. Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
2013-06-22pxa: turn icache off in cpu_init_crit()Mike Dunn
The comment in the low-level initialization function cpu_init_crit() says that the caches are being disabled, but (oddly) the icache is actually turned on. This is probably not a good idea prior to relocating code, so this patch turns it off. Tested on the pxa270. Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
2013-06-12arm: pxa: config option for PXA270 turbo modeSergey Yanovich
PXA270 CPU has turbo mode. The mode is 2.5 times faster than the default run mode. Activating the mode early significantly speeds up boot process. Signed-off-by: Sergey Yanovich <ynvich@gmail.com>
2013-05-30arm: factorize relocate_code routineAlbert ARIBAUD
Replace all relocate_code routines from ARM start.S files with a single instance in file arch/arm/lib/relocate.S. For PXA, this requires moving the dcache unlocking code from within relocate_code into c_runtime_cpu_setup. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Tested-by: Simon Glass <sjg@chromium.org>
2013-05-30arm: do not compile relocate_code() for SPL buildsAlbert ARIBAUD
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Tested-by: Simon Glass <sjg@chromium.org>
2013-05-05pxa: Add weak attribute to reset_cpu() functionŁukasz Dałek
This commit allows pxa2xx based boards to reimplement reset_cpu() function with board specific reset sequence. Signed-off-by: Lukasz Dalek <luk0104@gmail.com>
2013-04-13BUGFIX: arm: data abort in get_bad_stack_swiTetsuyuki Kobayashi
When swi instruction is executed, it is expected to get message "software interrupt" in console and dump registers and reboot, as do_software_interrupt() in arch/arm/lib/interrupts.c. But, actually it causes data abort accessing wrong address in get_bad_stack_swi macro in arch/arm/cpu/v7/start.S. This patch fixes this problem. The same mistake in arch/arm/cpu/{arm1136,arm1176,pxa}/start.S. Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
2013-04-12Merge branch 'u-boot/master' into 'u-boot-arm/master'Albert ARIBAUD
Conflicts: drivers/video/exynos_fb.c
2013-04-12arm: Remove unused relocate_code() parametersBenoît Thébaudeau
Commit e05e5de7fae5bec79617e113916dac6631251156 made the 2 1st parameters of ARM's relocate_code() useless since it moved the code handling them to crt0.S. So, drop these parameters. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2013-04-12arm: relocate_code(): Use __image_copy_end for end of relocationBenoît Thébaudeau
Use __image_copy_end instead of __bss_start for the end of the image to relocate. This is the same as commit 033ca72, but applied to all ARM start.S. This is a more appropriate symbol naming for an image copy & relocate feature, and this also saves a useless copy of data put between __image_copy_end and __bss_start in linker scripts (e.g. relocation information, or MMU initialization tables used only before jumping to the relocated image). Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2013-04-12arm: relocate_code(): Remove useless relocation offset computationBenoît Thébaudeau
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2013-04-12arm: relocate_code() is no longer noreturnBenoît Thébaudeau
Commit e05e5de7fae5bec79617e113916dac6631251156 made ARM's relocate_code() return to its caller, but it did not update its declaration accordingly. Fixing this function declaration fixes dropped C code following calls to relocate_code(). Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2013-04-12arm: start.S: Fix _TEXT_BASE for SPLBenoît Thébaudeau
_TEXT_BASE must be set to CONFIG_SPL_TEXT_BASE for generic SPL, and to CONFIG_SYS_TEXT_BASE for non-SPL builds. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Reviewed-by: Tom Rini <trini@ti.com>
2013-03-21lcd, pxafb: move the pxafb to drivers/videoJeroen Hofstee
Since the lcd code was compiled unconditionally for pxa also add CONFIG_PXA_LCD to the boards using this framebuffer. Since driver/video contains video and lcd drivers, add lcd to the name to make clear it belongs to common/lcd.c. cc: Anatolij Gustschin <agust@denx.de> cc: Cliff Brake <cliff.brake@gmail.com> cc: Marek Vasut <marek.vasut@gmail.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2013-03-21common/lcd.c: cleanup use of global variablesWolfgang Denk
lcd_color_fg and lcd_color_bg had to be declared in board specific code, but were not actually used there; in addition, we have getter / setter functions for these, which were not used either. Get rid of the global variables, and use the getter function where needed (so far no setter calls are needed). Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Alessandro Rubini <rubini@unipv.it> Cc: Anatolij Gustschin <agust@denx.de> Cc: Bo Shen <voice.shen@atmel.com> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Nikita Kiryanov <nikita@compulab.co.il> Cc: Simon Glass <sjg@chromium.org> Cc: Stelian Pop <stelian@popies.net> Cc: Tom Warren <twarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Jeroen Hofstee <jeroen@myspectrum.nl> [agust: also fixed cm_t35 board while rebasing] Signed-off-by: Anatolij Gustschin <agust@denx.de>
2013-03-15Replace __bss_end__ with __bss_endSimon Glass
Note this is a tree-wide change affecting multiple architectures. At present we use __bss_start, but mostly __bss_end__. This seems inconsistent and in a number of places __bss_end is used instead. Change to use __bss_end for the BSS end symbol throughout U-Boot. This makes it possible to use the asm-generic/sections.h file on all archs. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01arm: Move lastinc to arch_global_dataSimon Glass
Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01arm: Move tbl to arch_global_dataSimon Glass
Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-01-14pxa: Save lr register in relocate_code functionŁukasz Dałek
When u-boot is compiled for PXA25x processor, pxa/start.S is calling cpu_init_crit by BL instruction. BL is overwriting lr register so relocate_code is going into infinite loop. This patch preservs lr register in r12 before calling cpu_init_crit and after function returns restores it. Signed-off-by: Lukasz Dalek <luk0104@gmail.com> Acked-by: Marek Vasut <marex@denx.de>
2013-01-08arm: move C runtime setup code in crt0.SAlbert ARIBAUD
Move all the C runtime setup code from every start.S in arch/arm into arch/arm/lib/crt0.S. This covers the code sequence from setting up the initial stack to calling into board_init_r(). Also, rewrite the C runtime setup and make functions board_init_*() and relocate_code() behave according to normal C semantics (no jumping across the C stack any more, etc). Some SPL targets had to be touched because they use start.S explicitly or for some reason; the relevant maintainers and custodians are cc:ed. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2012-10-15pxa: Add code to examine cpu model and revisionLukasz Dalek
Add function which return CPU model and revision which can be used for cpu detection. Signed-off-by: Lukasz Dalek <luk0104@gmail.com>
2012-10-04arm: Fixed the offset for the no relocation.Zhong Hongbo
When the u-boot address of destination equal to __start, no relocation. relocation offset(r9) = 0. Signed-off-by: Zhong Hongbo <bocui107@gmail.com> Tested-by: Stefano Babic <sbabic@denx.de>
2012-07-20arm: Fix to mistake clean the memory spaceZhong Hongbo
In currently, when __bss_start is equal to __bss_end__, The bss loop will clear all the things in memory space. But just only when __bss_end__ greater than __bss_start__, we do the clear bss section operation. Signed-off-by: Zhong Hongbo <bocui107@gmail.com> Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
2012-03-30arm: Use common .lds file where possibleSimon Glass
Each cpu directory currently has its own .lds file. This is only needed in most cases because the start.o file is in a different subdir. Now that we can factor out this difference, we can move most cpus over to the common .lds file. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-26PXA: Fix missing get_tbclk() breaking vpac boardsMarek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
2012-03-19usb: replace wait_ms() with mdelay()Mike Frysinger
Common code has a mdelay() func, so use that instead of the usb-specific wait_ms() func. This also fixes the build errors: ohci-hcd.c: In function 'submit_common_msg': /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1519:9: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1816:10: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1827:10: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1844:10: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1563:11: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1583:9: sorry, unimplemented: called from here make[1]: *** [ohci-hcd.o] Error 1 Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Marek Vasut <marex@denx.de>
2011-12-11pxa: activate the first usb host port on pxa27x by defaultStefan Herbrechtsmeier
The pxa27x has 3 usb host ports. Activate all by default. Signed-off-by: Stefan Herbrechtsmeier <sherbrec@cit-ec.uni-bielefeld.de> CC: Marek Vasut <marek.vasut@gmail.com> CC: Remy Bohmer <linux@bohmer.net>
2011-12-11pxa: fix usb host register mismatchStefan Herbrechtsmeier
Signed-off-by: Stefan Herbrechtsmeier <sherbrec@cit-ec.uni-bielefeld.de> CC: Marek Vasut <marek.vasut@gmail.com> CC: Remy Bohmer <linux@bohmer.net>
2011-12-06PXA: Rename pxa_dram_init to pxa2xx_dram_initMarek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
2011-12-06PXA: Replace timer driverMarek Vasut
This new timer driver shall conform to new Timer API. Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
2011-12-06PXA: Add cpuinfo display for PXA2xxMarek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
2011-12-06PXA: Separate PXA2xx CPU initMarek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
2011-12-06PXA: Rename CONFIG_PXA2[57]X to CONFIG_CPU_PXA2[57]XMarek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
2011-12-06PXA: Re-add the Dcache locking as RAM for pxa250Marek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefan Herbrechtsmeier <sherbrec@cit-ec.uni-bielefeld.de> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-12-06PXA: Rework start.S to be closer to other ARMsMarek Vasut
The start.S on PXA was very obscure. This reworks it back to be close to arm1136 start.S and others. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> V2: Don't compile in relocation support if building SPL
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