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https://github.com/brain-hackers/u-boot-brain
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f3717ac584
Override -march setting for tegra to -march=armv4t for files that are necessary for low level init on tegra. The recent change to use -march=armv7-a for armv7 caused a regression on tegra because tegra starts boot on a arm7tdmi processor before transferring control to the cortex-a9. While still executing on the arm7tdmi there are calls to getenv_ulong() and memset() that cause an illegal instruction exception if compiled for armv7. Signed-off-by: Allen Martin <amartin@nvidia.com> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
39 lines
1.3 KiB
Makefile
39 lines
1.3 KiB
Makefile
#
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# (C) Copyright 2010,2011
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# NVIDIA Corporation <www.nvidia.com>
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#
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# (C) Copyright 2002
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# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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# Tegra has an ARMv4T CPU which runs board_init_f(), so we must build these
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# files with compatible flags
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ifdef CONFIG_TEGRA2
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CFLAGS_arch/arm/lib/board.o += -march=armv4t
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CFLAGS_arch/arm/lib/memset.o += -march=armv4t
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CFLAGS_lib/string.o += -march=armv4t
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CFLAGS_common/cmd_nvedit.o += -march=armv4t
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endif
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USE_PRIVATE_LIBGCC = yes
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CONFIG_ARCH_DEVICE_TREE := tegra20
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