diff --git a/target/linux/brcm47xx/mips74k/config-default b/target/linux/brcm47xx/mips74k/config-default
index 2b4497d15c5..09ff5a90371 100644
--- a/target/linux/brcm47xx/mips74k/config-default
+++ b/target/linux/brcm47xx/mips74k/config-default
@@ -2,6 +2,10 @@
 # CONFIG_BCM47XX_SSB is not set
 CONFIG_BGMAC=y
 CONFIG_BOUNCE=y
+# CONFIG_CPU_MIPS32_R1 is not set
+# CONFIG_CPU_MIPSR1 is not set
+CONFIG_CPU_MIPS32_R2=y
+CONFIG_CPU_MIPSR2=y
 # CONFIG_FIXED_PHY is not set
 # CONFIG_GPIO_WDT is not set
 CONFIG_HIGHMEM=y