--- /dev/null
+if MACH_LOONGSON1
+
+choice
+ prompt "Machine Type"
+
+config LOONGSON1_LS1B
+ bool "Loongson LS1B board"
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_HAS_CPU_LOONGSON1B
+ select DMA_NONCOHERENT
+ select BOOT_ELF32
+ select IRQ_CPU
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_HIGHMEM
+ select SYS_HAS_EARLY_PRINTK
+
+endchoice
+
+endif # MACH_LOONGSON1