diff --git a/target/linux/rdc/config-2.6.28 b/target/linux/rdc/config-2.6.28
index 509b0ccd0..8d6494a4a 100644
--- a/target/linux/rdc/config-2.6.28
+++ b/target/linux/rdc/config-2.6.28
@@ -25,6 +25,10 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
 CONFIG_BASE_SMALL=0
 # CONFIG_BINFMT_AOUT is not set
 CONFIG_BITREVERSE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BOUNCE=y
 CONFIG_CLASSIC_RCU=y
 CONFIG_CLOCKSOURCE_WATCHDOG=y