diff --git a/target/linux/bcm47xx/legacy/config-default b/target/linux/bcm47xx/legacy/config-default
index 8a52e475c7..4cd487e74c 100644
--- a/target/linux/bcm47xx/legacy/config-default
+++ b/target/linux/bcm47xx/legacy/config-default
@@ -4,5 +4,4 @@ CONFIG_B44_PCICORE_AUTOSELECT=y
 CONFIG_B44_PCI_AUTOSELECT=y
 # CONFIG_BCM47XX_BCMA is not set
 # CONFIG_BCMA is not set
-# CONFIG_MTD_NAND is not set
 # CONFIG_SSB_DRIVER_GIGE is not set
diff --git a/target/linux/bcm47xx/mips74k/config-default b/target/linux/bcm47xx/mips74k/config-default
index 2c3c40377a..96aecf0aa6 100644
--- a/target/linux/bcm47xx/mips74k/config-default
+++ b/target/linux/bcm47xx/mips74k/config-default
@@ -3,18 +3,15 @@
 CONFIG_BGMAC=y
 CONFIG_BGMAC_BCMA=y
 CONFIG_BOUNCE=y
+CONFIG_CPU_HAS_DIEI=y
+CONFIG_CPU_HAS_RIXI=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_CPU_SUPPORTS_MSA=y
 # CONFIG_GPIO_WDT is not set
 CONFIG_HIGHMEM=y
+CONFIG_KMAP_LOCAL=y
+CONFIG_MIPS_SPRAM=y
 # CONFIG_SSB is not set
-# CONFIG_SSB_DRIVER_EXTIF is not set
-# CONFIG_SSB_DRIVER_GIGE is not set
-# CONFIG_SSB_DRIVER_MIPS is not set
-# CONFIG_SSB_EMBEDDED is not set
-# CONFIG_SSB_PCICORE_HOSTMODE is not set
-# CONFIG_SSB_SERIAL is not set
-# CONFIG_SSB_SFLASH is not set
+CONFIG_TARGET_ISA_REV=2