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2009-01-24FPU POST: fix warnings when building with 2.18 binutilsYuri Tikhonov
When compile u-boot with the 2.18 binutils the following warning messages for each object file in post/lib_ppc/fpu/ is produced at the linking stage: post/libpost.a(acc1.o) uses hard float, u-boot uses soft-float ... This is because of the fact that, in general, the soft-float and hard-float ABIs are incompatible; the 2.18 binutils do checking of the Tag_GNU_Power_ABI_FP attribute of the files to be linked, and produce the worning like above if these are not compatible. The incompatibility of ABIs is concerned only the float values: e.g. the soft-float ABI assumes the float argument passing in the pair of rX registers, and the hard-float ABI assumes passing of the float argument in the fX register. When we don't pass the float arguments between the functions compiled with different floatness, then such an application will work correctly. This is the case for the FPU POST: u-boot (compiled with soft-float) doesn't pass to (and doesn't get from) the FPU POST functions any floats; there are no functions exported from the post/lib_ppc/fpu/ objects which would work with float parameters/returns too. So, we can reassure the linker not to worry about the difference in ABI attributes of linking files just by setting the 'soft-float' attribute for the objects in post/lib_ppc/fpu. And this patch does this. Also, to avoid passing both soft- and hard-float options in CFLAGS when compiling the files from post/lib_ppc/fpu (which is OK, but looks rather dirty) this patch removes the soft-float string from CFLAGS in post/lib_ppc/fpu/Makefile. Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
2008-10-18rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-08-06Fix merge problemsStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de>
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>
2008-04-22POST: move CONFIG_POST to MakefilesYuri Tikhonov
Introduce the new logical option CONFIG_HAS_POST which is set when the platform has CONFIG_POST set. Use CONFIG_HAS_POST in the post/ Makefiles to determine should the POST libs be compiled for the selected target platform, or not. To avoid breaking u-boot linking process, the empty post/libpost.a file is created for platforms which do not have POSTs. Signed-off-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-04-22POST: preparations for moving CONFIG_POST to MakefilesYuri Tikhonov
Remove CONFIG_POST ifdefs from the post/ source files. Signed-off-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-02-21Fix CPU POST test failureYuri Tikhonov
The CPU POST test code (run from cpu_post_exec_31()) doesn't follow the ABI carefully, at least the CR3, CR4, and CR5 fields of CR are clobbered by it. The gcc-4.2 with its more aggressive optimization exposes this fact. This patch just saves the CR value before running the test code, so allowing it to do anything it wants with CR. Signed-off-by: Dmitry Rakhchev <rda@emcraft.com> Acked-by: Yuri Tikhonov <yur@emcraft.com> --
2007-10-31ppc4xx: Enable CPU POST test for 4xx with dcache enabledStefan Roese
Now with caches enabled (i- and d-cache) on 44x, we need a chance to disable the cache for the CPU POST tests, since these tests consist of self modifying code. This is done via the new change_tlb() function. Signed-off-by: Stefan Roese <sr@denx.de>
2007-07-05Merged POST framework with the current TOT.Sergei Poselenov
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
2007-06-22Extend POST support for PPC440Igor Lisitsin
Added memory, CPU, UART, I2C and SPR POST tests for PPC440. Signed-off-by: Igor Lisitsin <igor@emcraft.com> --
2007-03-06Restructure POST directory to support of other CPUs, boards, etc.Wolfgang Denk