--- zzzz-none-000/linux-2.6.32.61/arch/mips/configs/db1500_defconfig	2013-06-10 09:43:48.000000000 +0000
+++ ar10-7272-687/linux-2.6.32.61/arch/mips/configs/db1500_defconfig	2011-01-21 15:59:20.000000000 +0000
@@ -116,6 +116,7 @@
 # CONFIG_MIPS_MT_SMTC is not set
 # CONFIG_MIPS_VPE_LOADER is not set
 CONFIG_64BIT_PHYS_ADDR=y
+CONFIG_CPU_HAS_LLSC=y
 CONFIG_CPU_HAS_SYNC=y
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y