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* ppc4xx: Remove IOP480 supportStefan Roese2012-10-15-108/+0
| | | | | | | | | | Since the IOP480 (PPC401/3 variant from PLX) is only used on 2 boards that are not actively maintained, lets remove support for it completely. This way the ppc4xx code will get a bit cleaner. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu> Acked-by: Marek Vasut <marex@denx.de>
* unify version_stringAndreas Bießmann2011-07-28-8/+1
| | | | | | | | | | | | This patch removes the architecture specific implementation of version_string where possible. Some architectures use a special place and therefore we provide U_BOOT_VERSION_STRING definition and a common weak symbol version_string. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> CC: Mike Frysinger <vapier@gentoo.org> CC: Peter Pan <pppeterpppan@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* Revert "PowerPC: Add support for -msingle-pic-base"Wolfgang Denk2011-04-20-20/+2
| | | | | | | This reverts commit 39768f7715ed637ef02f49fc7de664cc1aaf14b3. Reson: it breaks a number of boards with embedded environment as the code size grows in some places.
* PowerPC: Add support for -msingle-pic-baseJoakim Tjernlund2011-04-11-2/+20
| | | | | | | | | | | | | -msingle-pic-base is a new gcc option for ppc and it reduces the size of my u-boot with 6-8 KB. While at it, add -fno-jump-tables too to save a few more bytes. -msingle-pic-base will be in gcc 4.6, however backported patches are available at http://bugs.gentoo.org/show_bug.cgi?id=347281 Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
* rename _end to __bss_end__Po-Yu Chuang2011-03-27-2/+2
| | | | | | | 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>
* xilinx-ppc4xx-generic: Use common u-boot.ldsRicardo Ribalda Delgado2010-12-17-1/+1
| | | | | | | Use common ppc4xx linker script for xilinx ppc440 and ppc405 related boards. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Stefan Roese <sr@denx.de>
* ppc4xx: Clarify comment about boot chip-select in start.SStefan Roese2010-12-17-12/+14
| | | | | | | Ths old comment was quite screwed up. Replace it with a new version that should be a bit more descriptive. Signed-off-by: Stefan Roese <sr@denx.de>
* ppc4xx: Flush complete dcache in relocate_code()Stefan Roese2010-11-28-6/+7
| | | | | | | | | When the cache is enabled in SDRAM we need to flush not only the global data area but also the bd_info struct in relocate_code. This patch now flushed the complete dcache (all dcache lines) via flush_dcache() instead of adding a flush_dcache_range() call for bd_info since this is faster. Signed-off-by: Stefan Roese <sr@denx.de>
* PowerPC: Don't destroy fixup table while doing fixupsJoakim Tjernlund2010-11-14-1/+1
| | | | | | | | | The fixup procedure just stored a constant value in the fixup table rather than just adjusting the table. Although that doesn't seem to do any harm, it prevents relocation more that once. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
* Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated valueWolfgang Denk2010-10-26-1/+2
| | | | | | | | | | | | | | | | | | CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not being able to use "sizeof(struct global_data)" in assembler files. Recent experience has shown that manual synchronization is not reliable enough. This patch renames CONFIG_SYS_GBL_DATA_SIZE into GENERATED_GBL_DATA_SIZE which gets automatically generated by the asm-offsets tool. In the result, all definitions of this value can be deleted from the board config files. We have to make sure that all files that reference such data include the new <asm-offsets.h> file. No other changes have been done yet, but it is obvious that similar changes / simplifications can be done for other, related macro definitions as well. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Kumar Gala <galak@kernel.crashing.org>
* Rename CONFIG_SYS_INIT_RAM_END into CONFIG_SYS_INIT_RAM_SIZEWolfgang Denk2010-10-26-11/+11
| | | | | | | | | | | | | | | | | | CONFIG_SYS_INIT_RAM_END was a misnomer as it suggests this might be some end address; to make the meaning more clear we rename it into CONFIG_SYS_INIT_RAM_SIZE No other code changes are performed in this patch, only minor editing of white space (due to the changed length) and the comments was done, where noticed. Note that the code for the PATI and cmi_mpc5xx board configurations looks seriously broken. Last known maintainers on Cc: Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Denis Peter <d.peter@mpl.ch> Cc: Martin Winistoerfer <martinwinistoerfer@gmx.ch> Acked-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: do not fixup NULL ptrsJoakim Tjernlund2010-10-18-1/+3
| | | | | | | | | | | | | | The fixup routine must not fixup NULL pointers. Problem can be seen by char *testfun(void) __attribute__((weak)); char *(*myfun)(void) = testfun; Then add printf("myfun:%p, &myfun:%p\n", myfun, &myfun); before relocation and after relocation. myfun should be NULL in both cases but it is not. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
* powerpc: Remove warm reset entry pointPeter Tyser2010-10-12-1/+5
| | | | | | No boards utilize the warm reset entry point, so remove it. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* APM821xx: Add CPU supportTirumala Marri2010-10-04-4/+7
| | | | | | | | | APM821XX is a new line of SoCs which are derivatives of PPC44X family of processors. This patch adds support of CPU, cache, tlb, 32k ocm, bootstraps, PLB and AHB bus. Signed-off-by: Tirumala R Marri <tmarri@apm.com> Signed-off-by: Stefan Roese <sr@denx.de>
* ppc4xx: Disable trace broadcast for 44x non debug modeVictor Gallardo2010-09-23-0/+3
| | | | | | | | | | | | | | | | By default the trace broadcast is enabled on 44x systems. To reduce power consumption when instruction tracing is not needed, disable trace broadcast. Check External Debug Mode (EDM) bit to detect if it should be disabled or not. Resetting system via a debugger will set the DBCR0[EDM] bit. Resetting via u-boot or OS will not. Signed-off-by: Victor Gallardo <vgallardo@apm.com> Signed-off-by: Stefan Roese <sr@denx.de>
* ppc4xx: Move ppc4xx headers to powerpc include directoryStefan Roese2010-09-23-1/+1
| | | | | | | | | This patch moves some ppc4xx related headers from the common include directory (include/) to the powerpc specific one (arch/powerpc/include/asm/). This way to common include directory is not so cluttered with files. Signed-off-by: Stefan Roese <sr@denx.de>
* ppc4xx: Invalidate d-cache when used as init-ramStefan Roese2010-09-03-0/+5
| | | | | | | | We need to invalidate the data cache after it has been used as init-ram. This problem was detected on the lwmon5 update. Signed-off-by: Stefan Roese <sr@denx.de>
* ppc4xx: Cleanup Boot/FLASH TLB reassignment for PPC440/460Stefan Roese2010-07-01-15/+6
| | | | | | | | | | | | | | | | | | Background Info: Some PPC440/460 boards have caches enabled in the Boot/FLASH TLB (via init.S) to speed up the boot process. In relocate_code (start.S) the cache inhibit attribute for this TLB is set to disable cache. This is needed for the CFI FLASH driver. This patch now cleans this code up: - CONFIG_SYS_TLB_FOR_BOOT_FLASH is defined to 0 (default TLB) if not defined in the top of this file. This way, we can remove an ugly #ifdef in this code. - Replace complex "#if defined(CONFIG_440EP) || defined(CONFIG_GR)..." statement with "#if defined(CONFIG_440)". - Remove unnecessary cache invalidate calls resulting in faster bootup. Signed-off-by: Stefan Roese <sr@denx.de>
* Move arch/ppc to arch/powerpcStefan Roese2010-04-21-0/+2170
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de> Acked-by: Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>