ARM: fix arch/arm/Makefile for Tegra
Since commit 79d75d752717 (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 79d75d752717 *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 e02ee2548afe (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>
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 6463c19..bd4749c 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -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