u-boot/arch/arm/cpu/arm926ejs/Makefile
Albert ARIBAUD 62e92077a8 arm: support Thumb-1 with CONFIG_SYS_THUMB_BUILD
When building a Thumb-1-only target with CONFIG_SYS_THUMB_BUILD,
some files fail to build, most of the time because they include
mcr instructions, which only exist for Thumb-2.

This patch introduces a Kconfig option CONFIG_THUMB2 and uses
it to select between Thumb-2 and ARM mode for the aforementioned
files.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2015-11-10 15:03:48 +01:00

33 lines
652 B
Makefile

#
# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier: GPL-2.0+
#
extra-y = start.o
obj-y = cpu.o cache.o
ifdef CONFIG_SPL_BUILD
ifdef CONFIG_SPL_NO_CPU_SUPPORT_CODE
extra-y :=
endif
endif
obj-$(CONFIG_ARMADA100) += armada100/
obj-$(if $(filter lpc32xx,$(SOC)),y) += lpc32xx/
obj-$(CONFIG_MX25) += mx25/
obj-$(CONFIG_MX27) += mx27/
obj-$(if $(filter mxs,$(SOC)),y) += mxs/
obj-$(if $(filter spear,$(SOC)),y) += spear/
# some files can only build in ARM or THUMB2, not THUMB1
ifdef CONFIG_SYS_THUMB_BUILD
ifndef CONFIG_HAS_THUMB2
CFLAGS_cpu.o := -marm
CFLAGS_cache.o := -marm
endif
endif