diff --git a/meta-yocto/recipes-kernel/linux/linux-yocto_3.0.bbappend b/meta-yocto/recipes-kernel/linux/linux-yocto_3.0.bbappend
index e224d80824..52ff1a25ce 100644
--- a/meta-yocto/recipes-kernel/linux/linux-yocto_3.0.bbappend
+++ b/meta-yocto/recipes-kernel/linux/linux-yocto_3.0.bbappend
@@ -3,11 +3,11 @@ KMACHINE_routerstationpro = "yocto/standard/routerstationpro"
 KMACHINE_mpc8315e-rdb = "yocto/standard/fsl-mpc8315e-rdb"
 KMACHINE_beagleboard = "yocto/standard/beagleboard"
 
-SRCREV_machine_emenlow = "374340f311d7b035451f45e29bab5e1b8c058ce8"
-SRCREV_machine_atom-pc = "fdd23ed909594ba6c32c894ee6536cf823b0377f"
-SRCREV_machine_routerstationpro = "fd6d538850a28413e3c4867b905c56039773df3a"
-SRCREV_machine_mpc8315e-rdb = "5d3c0b06071abd663c7790df141060ae462660a9"
-SRCREV_machine_beagleboard = "32631d785b0b907e5c14435ef7531ed041ab8c64"
+SRCREV_machine_emenlow ?= "985f4b7b1df7e4dbfd73af8312f544a9fcd537e7"
+SRCREV_machine_atom-pc ?= "ead7d8334e4c075906d029789333f43e54f6257a"
+SRCREV_machine_routerstationpro ?= "81d3603cf9354533f8a747b9cf9be721cb70d4fb"
+SRCREV_machine_mpc8315e-rdb ?= "59503eebe7ad5951973be8bc66eeeb98cf98193a"
+SRCREV_machine_beagleboard ?= "73d4dce6a853bab7e943a5d7eee67e593f259ecf"
 
 COMPATIBLE_MACHINE_mpc8315e-rdb = "mpc8315e-rdb"
 # COMPATIBLE_MACHINE_routerstationpro = "routerstationpro"