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ARM: fix arch/arm/Makefile for Tegra

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Since commit 79d75d7527 (ARM: move -march=* and -mtune= options to
arch/arm/Makefile), all the Tegra boards are broken because the SPL
is built for ARMv7.

Insert Tegra-specific code to arch/arm/Makefile to set compiler
flags for an earlier ARM architecture.

Note:
The v1 patch for commit 79d75d7527 *was* correct when it was
submitted.  Notice it was originally written for multi .config
configuration where Kconfig set CONFIG_CPU_V7/CONFIG_CPU_ARM720T for
Tegra U-Boot Main/SPL, respectively.  But, until it was merged into
the mainline, commit e02ee2548a (kconfig: switch to single .config
configuration) had been already applied there.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Stephen Warren <swarren@nvidia.com>
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Masahiro Yamada 2015-04-12 00:58:14 +09:00 committed by Tom Rini
parent 4adb46a314
commit bf71a29c8e
1 changed files with 5 additions and 0 deletions
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5
arch/arm/Makefile
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@ -2,6 +2,11 @@
# SPDX-License-Identifier: GPL-2.0+
#
ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_TEGRA),yy)
CONFIG_CPU_V7=
CONFIG_CPU_ARM720T=y
endif
# This selects which instruction set is used.
arch-$(CONFIG_CPU_ARM720T) =-march=armv4
arch-$(CONFIG_CPU_ARM920T) =-march=armv4