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authorTom Rini <trini@ti.com>2014-02-25 10:27:01 -0500
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2014-02-26 21:19:32 +0100
commit1551df35f296f0a8df32f4f2054254f46e8be252 (patch)
tree5c93d004be051b5b3cfae8c5cbdf297f8b07bb9b /common/Makefile
parentf503cc49a570b1e28a93b75bc912aedc93ba2cd0 (diff)
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arm: Switch to -mno-unaligned-access when supported by the compiler
When we tell the compiler to optimize for ARMv7 (and ARMv6 for that matter) it assumes a default of SCTRL.A being cleared and unaligned accesses being allowed and fast at the hardware level. We set this bit and must pass along -mno-unaligned-access so that the compiler will still breakdown accesses and not trigger a data abort. To better help understand the requirements of the project with respect to unaligned memory access, the Documentation/unaligned-memory-access.txt file has been added as doc/README.unaligned-memory-access.txt and is taken from the v3.14-rc1 tag of the kernel. Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Mans Rullgard <mans@mansr.com> Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'common/Makefile')
-rw-r--r--common/Makefile2
1 files changed, 0 insertions, 2 deletions
diff --git a/common/Makefile b/common/Makefile
index 3b2ff9b..70f813e 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -239,5 +239,3 @@ obj-y += memsize.o
obj-y += stdio.o
CFLAGS_env_embedded.o := -Wa,--no-warn -DENV_CRC=$(shell tools/envcrc 2>/dev/null)
-CFLAGS_hush.o := $(PLATFORM_NO_UNALIGNED)
-CFLAGS_fdt_support.o := $(PLATFORM_NO_UNALIGNED)