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ramips: set -march=24kec for rt305x and rt3883 to enable use of DSP extension

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All known rt305x and rt3883 implementations support at
least the 24kec instruction set which includes the DSP
extension. For rt288x, the previous value mips32r2 is
kept.

The cpu target is now set per sub-archtecture, according
to cpu-feature-overrides.h of each SoC family.

[juhosg: define ARCH_PACKAGES variable for rt305x/rt3883
in order to differentiate the packages compiled with
the 24Kec option.]

Signed-off-by: Daniel Golle <dgolle@allnet.de>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 35853
This commit is contained in:
Gabor Juhos 2013-03-03 12:47:31 +00:00
parent 59ad675ef1
commit 8798c73860
4 changed files with 6 additions and 1 deletions
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2
target/linux/ramips/Makefile
View file

@ -10,7 +10,7 @@ ARCH:=mipsel
BOARD:=ramips
BOARDNAME:=Ralink RT288x/RT3xxx
SUBTARGETS:=rt288x rt305x rt3883
CFLAGS:=-Os -pipe -mips32r2 -mtune=mips32r2 -fno-caller-saves -mno-branch-likely
CFLAGS:=-Os -pipe -fno-caller-saves -mno-branch-likely
FEATURES:=squashfs
LINUX_VERSION:=3.7.9

1
target/linux/ramips/rt288x/target.mk
View file

@ -4,6 +4,7 @@
SUBTARGET:=rt288x
BOARDNAME:=RT288x based boards
CFLAGS+= -mips32r2 -mtune=mips32r2
define Target/Description
Build firmware images for Ralink RT288x based boards.

2
target/linux/ramips/rt305x/target.mk
View file

@ -4,6 +4,8 @@
SUBTARGET:=rt305x
BOARDNAME:=RT305x based boards
ARCH_PACKAGES:=ramips_24kec
CFLAGS+= -march=24kec
define Target/Description
Build firmware images for Ralink RT305x based boards.

2
target/linux/ramips/rt3883/target.mk
View file

@ -4,6 +4,8 @@
SUBTARGET:=rt3883
BOARDNAME:=RT3662/RT3883 based boards
ARCH_PACKAGES:=ramips_24kec
CFLAGS+= -march=24kec
define Target/Description
Build firmware images for Ralink RT3662/RT3883 based boards.