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authorDaniel Schwierzeck <daniel.schwierzeck@googlemail.com>2011-03-28 18:33:56 +0200
committerShinya Kuribayashi <skuribay@pobox.com>2011-04-02 22:07:12 +0900
commit04efda7afca03692dd7335d1205211c302d502a4 (patch)
tree4781068d2e6868fc1762a077a5d7c83ebfcb7958 /arch/mips
parent91809608a44f7d90be4c630f09c9de54cc3852d8 (diff)
downloadu-boot-linaro-stable-04efda7afca03692dd7335d1205211c302d502a4.tar.gz
MIPS: Optimize the setup of CPU optimization flags
The current MIPS CPU config.mk code always expects a MIPS 4kc core. This is not appropiate for other CPUs and SoCs. Replace the current MIPSFLAGS code by cc-option macro and use -march=mips32r2 as default optimization level for all MIPS32 CPUs. Note: Since commit f62fb99941c625605aa16a0097b396a5c16d2c88 all toolchains with binutils prior to v2.16 are not working anymore. As agreed with Shinya Kuribayashi the support for those toolchains will be dropped officially with this patch. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Wolfgang Denk <wd@denx.de> Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/cpu/mips32/config.mk15
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/mips/cpu/mips32/config.mk b/arch/mips/cpu/mips32/config.mk
index a173c5480..4d1b27379 100644
--- a/arch/mips/cpu/mips32/config.mk
+++ b/arch/mips/cpu/mips32/config.mk
@@ -20,13 +20,14 @@
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
-v=$(shell $(AS) --version | grep 'GNU assembler' | egrep -o '2\.[0-9\.]+' | cut -d. -f2)
-MIPSFLAGS:=$(shell \
-if [ "$v" -lt "14" ]; then \
- echo "-mcpu=4kc"; \
-else \
- echo "-march=4kc -mtune=4kc"; \
-fi)
+
+#
+# Default optimization level for MIPS32
+#
+# Note: Toolchains with binutils prior to v2.16
+# are no longer supported by U-Boot MIPS tree!
+#
+MIPSFLAGS = -march=mips32r2
ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
ENDIANNESS = -EL