brcm47xx: activate some compiler optimizations for 74K CPUs

With this patch the mips74k subtarget will be compiled with optimized
compiler options to generated smaller and faster code. This currently
breaks broadcom-wl, because the binary blob is only compiled with
mipsr1 support.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 41050

include/target.mk

@@ -214,6 +214,7 @@ ifeq ($(DUMP),1)
     CPU_CFLAGS_mips64 = -mips64 -mtune=mips64 -mabi=64
     CPU_CFLAGS_24kec = -mips32r2 -mtune=24kec
     CPU_CFLAGS_34kc = -mips32r2 -mtune=34kc
+    CPU_CFLAGS_74kc = -mips32r2 -mtune=74kc
     CPU_CFLAGS_dsp = -mdsp
     CPU_CFLAGS_dsp2 = -mdspr2
   endif

target/linux/brcm47xx/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=mipsel
 BOARD:=brcm47xx
 BOARDNAME:=Broadcom BCM47xx/53xx (MIPS)
-FEATURES:=squashfs usb pcmcia
+FEATURES:=squashfs usb
 SUBTARGETS:=generic mips74k legacy
 MAINTAINER:=Hauke Mehrtens <hauke@hauke-m.de>
 

target/linux/brcm47xx/generic/target.mk

@@ -1,4 +1,5 @@
 BOARDNAME:=Generic
+FEATURES+=pcmcia
 
 define Target/Description
 	Build generic firmware for all Broadcom BCM47xx and BCM53xx MIPS

target/linux/brcm47xx/legacy/target.mk

@@ -1,5 +1,6 @@
 FEATURES += low_mem
 BOARDNAME:=Legacy (802.11g)
+FEATURES+=pcmcia
 
 define Target/Description
 	Build generic firmware for legacy 802.11g Broadcom BCM47xx

target/linux/brcm47xx/mips74k/target.mk

@@ -1,4 +1,7 @@
 BOARDNAME:=MIPS 74K
+CPU_TYPE:=74kc
+CPU_SUBTYPE:=dsp2
+FEATURES+=mips16
 
 define Target/Description
 	Build firmware for Broadcom BCM47xx and BCM53xx devices with