build: remove mips16 feature flag from target makefiles

It can be implicitly derived from the MIPS32 revision support in the
kernel configuration

Signed-off-by: Felix Fietkau <nbd@nbd.name>

include/target.mk

@@ -258,6 +258,9 @@ ifeq ($(DUMP),1)
     ifneq ($(CONFIG_VIRTIO),)
       FEATURES += virtio
     endif
+    ifneq ($(CONFIG_CPU_MIPS32_R2),)
+      FEATURES += mips16
+    endif
     FEATURES += $(foreach v,6 7,$(if $(CONFIG_CPU_V$(v)),arm_v$(v)))
 
     # remove duplicates

target/linux/ar71xx/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=mips
 BOARD:=ar71xx
 BOARDNAME:=Atheros AR7xxx/AR9xxx
-FEATURES:=mips16 usbgadget
+FEATURES:=usbgadget
 CPU_TYPE:=24kc
 SUBTARGETS:=generic nand mikrotik
 

target/linux/brcm47xx/mips74k/target.mk

@@ -1,6 +1,5 @@
 BOARDNAME:=MIPS 74K
 CPU_TYPE:=74kc
-FEATURES+=mips16
 
 define Target/Description
 	Build firmware for Broadcom BCM47xx and BCM53xx devices with

target/linux/lantiq/falcon/target.mk

@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=falcon
 BOARDNAME:=Falcon
-FEATURES:=squashfs mips16 nand
+FEATURES:=squashfs nand
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+= kmod-leds-gpio \

target/linux/lantiq/xrx200/target.mk

@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=xrx200
 BOARDNAME:=XRX200
-FEATURES:=squashfs atm mips16 nand ubifs
+FEATURES:=squashfs atm nand ubifs
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+=kmod-leds-gpio \

target/linux/lantiq/xway/target.mk

@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=xway
 BOARDNAME:=XWAY
-FEATURES:=squashfs atm mips16 nand ubifs ramdisk
+FEATURES:=squashfs atm nand ubifs ramdisk
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug swconfig

target/linux/lantiq/xway_legacy/target.mk

@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=xway_legacy
 BOARDNAME:=XWAY Legacy
-FEATURES:=squashfs atm mips16 ramdisk small_flash
+FEATURES:=squashfs atm ramdisk small_flash
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug swconfig

target/linux/malta/be/target.mk

@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=be
 BOARDNAME:=Big Endian
-FEATURES:=ramdisk mips16
+FEATURES:=ramdisk
 
 define Target/Description
 	Build BE firmware images for MIPS Malta CoreLV board running in

target/linux/malta/le/target.mk

@@ -1,7 +1,7 @@
 ARCH:=mipsel
 SUBTARGET:=le
 BOARDNAME:=Little Endian
-FEATURES:=ramdisk mips16
+FEATURES:=ramdisk
 
 define Target/Description
 	Build LE firmware images for MIPS Malta CoreLV board running in

target/linux/ramips/Makefile

@@ -10,7 +10,7 @@ ARCH:=mipsel
 BOARD:=ramips
 BOARDNAME:=MediaTek Ralink MIPS
 SUBTARGETS:=rt305x mt7620 mt7621 mt7628 mt7688 rt3883 rt288x
-FEATURES:=squashfs gpio mips16
+FEATURES:=squashfs gpio
 MAINTAINER:=John Crispin <john@phrozen.org>
 
 KERNEL_PATCHVER:=4.4