diff --git a/include/target.mk b/include/target.mk
index 3fc2bd7508389e17d2699aa03e115ddd658c010d..696b46385701017d7ffb9824500c31e7967decd2 100644
--- a/include/target.mk
+++ b/include/target.mk
@@ -172,8 +172,6 @@ ifeq ($(DUMP),1)
     CPU_CFLAGS_74kc = -mips32r2 -mtune=74kc
     CPU_CFLAGS_1004kc = -mips32r2 -mtune=1004kc
     CPU_CFLAGS_octeon = -march=octeon -mabi=64
-    CPU_CFLAGS_dsp = -mdsp
-    CPU_CFLAGS_dsp2 = -mdspr2
   endif
   ifeq ($(ARCH),i386)
     CPU_TYPE ?= i486
diff --git a/target/linux/brcm47xx/mips74k/target.mk b/target/linux/brcm47xx/mips74k/target.mk
index ccefa21e0567ffdde477a90ce05a208218737782..eb006e9a16faab07640aac3789b43ed083f0a20b 100644
--- a/target/linux/brcm47xx/mips74k/target.mk
+++ b/target/linux/brcm47xx/mips74k/target.mk
@@ -1,6 +1,5 @@
 BOARDNAME:=MIPS 74K
 CPU_TYPE:=74kc
-CPU_SUBTYPE:=dsp2
 FEATURES+=mips16
 
 define Target/Description
diff --git a/target/linux/lantiq/xrx200/target.mk b/target/linux/lantiq/xrx200/target.mk
index 6b8738c8a823c0ccebe0b6c295e725a46c966d78..a52816c4529a3f20af9173e024ce7c0c5064a18d 100644
--- a/target/linux/lantiq/xrx200/target.mk
+++ b/target/linux/lantiq/xrx200/target.mk
@@ -3,7 +3,6 @@ SUBTARGET:=xrx200
 BOARDNAME:=XRX200
 FEATURES:=squashfs atm mips16 nand ubifs
 CPU_TYPE:=34kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES+=kmod-leds-gpio \
 	kmod-gpio-button-hotplug \
diff --git a/target/linux/lantiq/xway/target.mk b/target/linux/lantiq/xway/target.mk
index b9d4a0ff5b144d25203ba5fe1e17a6475c957a4d..1fe6bc4bda162f499884fafa1aace8affb2a6320 100644
--- a/target/linux/lantiq/xway/target.mk
+++ b/target/linux/lantiq/xway/target.mk
@@ -3,7 +3,6 @@ SUBTARGET:=xway
 BOARDNAME:=XWAY
 FEATURES:=squashfs atm mips16 nand ubifs ramdisk
 CPU_TYPE:=34kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug
 
diff --git a/target/linux/lantiq/xway_legacy/target.mk b/target/linux/lantiq/xway_legacy/target.mk
index 2d9cc56d38a438b3fd35b29024b371ae7bbfb86c..abff3853f1dd556e49379a76276d9d7f8a56eed3 100644
--- a/target/linux/lantiq/xway_legacy/target.mk
+++ b/target/linux/lantiq/xway_legacy/target.mk
@@ -3,7 +3,6 @@ SUBTARGET:=xway_legacy
 BOARDNAME:=XWAY Legacy
 FEATURES:=squashfs atm mips16 ramdisk small_flash
 CPU_TYPE:=34kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug
 
diff --git a/target/linux/ramips/mt7620/target.mk b/target/linux/ramips/mt7620/target.mk
index 08c775c97b73f65c5eef9f2897b3a76594d63b28..bbdf21c1f58791ab1f672ff8904ccae9f633df64 100644
--- a/target/linux/ramips/mt7620/target.mk
+++ b/target/linux/ramips/mt7620/target.mk
@@ -6,7 +6,6 @@ SUBTARGET:=mt7620
 BOARDNAME:=MT7620 based boards
 FEATURES+=usb
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-rt2800-pci kmod-rt2800-soc kmod-mt76
 
diff --git a/target/linux/ramips/mt7621/target.mk b/target/linux/ramips/mt7621/target.mk
index 7e175435b3eb51f589c55ef937092cc67e3d560d..16c6562d076c3185916eddaa80f42b908633a612 100644
--- a/target/linux/ramips/mt7621/target.mk
+++ b/target/linux/ramips/mt7621/target.mk
@@ -6,7 +6,6 @@ SUBTARGET:=mt7621
 BOARDNAME:=MT7621 based boards
 FEATURES+=usb rtc
 CPU_TYPE:=1004kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-mt76
 
diff --git a/target/linux/ramips/mt7628/target.mk b/target/linux/ramips/mt7628/target.mk
index 61d7f0707cf4a778e53050951e71cfad322ae2be..cb717eb9bcb8bae6b66c2b29d538254fdbab8357 100644
--- a/target/linux/ramips/mt7628/target.mk
+++ b/target/linux/ramips/mt7628/target.mk
@@ -6,7 +6,6 @@ SUBTARGET:=mt7628
 BOARDNAME:=MT7628 based boards
 FEATURES+=usb
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-mt76
 
diff --git a/target/linux/ramips/mt7688/target.mk b/target/linux/ramips/mt7688/target.mk
index a501a641368439a8d48199635f3445ee6d577228..84393c9ea3559671a8a51a15a8d45670c1dcf924 100644
--- a/target/linux/ramips/mt7688/target.mk
+++ b/target/linux/ramips/mt7688/target.mk
@@ -6,7 +6,6 @@ SUBTARGET:=mt7688
 BOARDNAME:=MT7688 based boards
 FEATURES+=usb
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-mt76
 
diff --git a/target/linux/ramips/rt305x/target.mk b/target/linux/ramips/rt305x/target.mk
index 633925999e2d62b66ff93a6236eb64acefd1fe56..f3c8a682c3c1290c662281a6756623a2339934ee 100644
--- a/target/linux/ramips/rt305x/target.mk
+++ b/target/linux/ramips/rt305x/target.mk
@@ -6,7 +6,6 @@ SUBTARGET:=rt305x
 BOARDNAME:=RT3x5x/RT5350 based boards
 FEATURES+=usb ramdisk
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-rt2800-soc
 
diff --git a/target/linux/ramips/rt3883/target.mk b/target/linux/ramips/rt3883/target.mk
index 7a2cec99a166d4961296882736d2538654d6fd99..6ae4e7820d77e80a7cf7f42c2337be32cb218a9e 100644
--- a/target/linux/ramips/rt3883/target.mk
+++ b/target/linux/ramips/rt3883/target.mk
@@ -6,7 +6,6 @@ SUBTARGET:=rt3883
 BOARDNAME:=RT3662/RT3883 based boards
 FEATURES+=usb pci
 CPU_TYPE:=74kc
-CPU_SUBTYPE:=dsp2
 
 DEFAULT_PACKAGES += kmod-rt2800-pci kmod-rt2800-soc