More foolproofing of the CPU configuration.

    
Limit the number of cpu type options in the cpu menu to just those
types that are actually available for the select platform.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -19,12 +19,14 @@ config MIPS_MTX1
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select SOC_AU1500
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_BOSPORUS
 	bool "AMD Alchemy Bosporus board"
 	select SOC_AU1500
 	select DMA_NONCOHERENT
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_PB1000
@@ -33,6 +35,7 @@ config MIPS_PB1000
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_PB1100
@@ -41,6 +44,7 @@ config MIPS_PB1100
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_PB1500
@@ -48,6 +52,7 @@ config MIPS_PB1500
 	select SOC_AU1500
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_PB1550
@@ -56,6 +61,7 @@ config MIPS_PB1550
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select MIPS_DISABLE_OBSOLETE_IDE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_PB1200
@@ -63,6 +69,7 @@ config MIPS_PB1200
 	select SOC_AU1200
 	select DMA_NONCOHERENT
 	select MIPS_DISABLE_OBSOLETE_IDE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_DB1000
@@ -70,12 +77,14 @@ config MIPS_DB1000
 	select SOC_AU1000
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_DB1100
 	bool "AMD Alchemy DB1100 board"
 	select SOC_AU1100
 	select DMA_NONCOHERENT
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_DB1500
@@ -84,6 +93,7 @@ config MIPS_DB1500
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select MIPS_DISABLE_OBSOLETE_IDE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -93,6 +103,7 @@ config MIPS_DB1550
 	select HW_HAS_PCI
 	select DMA_NONCOHERENT
 	select MIPS_DISABLE_OBSOLETE_IDE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_DB1200
@@ -100,12 +111,14 @@ config MIPS_DB1200
 	select SOC_AU1200
 	select DMA_COHERENT
 	select MIPS_DISABLE_OBSOLETE_IDE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_MIRAGE
 	bool "AMD Alchemy Mirage board"
 	select DMA_NONCOHERENT
 	select SOC_AU1500
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_COBALT
@@ -115,6 +128,7 @@ config MIPS_COBALT
 	select I8259
 	select IRQ_CPU
 	select MIPS_GT64111
+	select SYS_HAS_CPU_NEVADA
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -125,6 +139,8 @@ config MACH_DECSTATION
 	select DMA_NONCOHERENT
 	select EARLY_PRINTK
 	select IRQ_CPU
+	select SYS_HAS_CPU_R3000
+	select SYS_HAS_CPU_R4X00
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -149,6 +165,7 @@ config MIPS_EV64120
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select MIPS_GT64120
+	select SYS_HAS_CPU_R5000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -168,6 +185,8 @@ config MIPS_EV96100
 	select MIPS_GT96100
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_R5000
+	select SYS_HAS_CPU_RM7000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -182,6 +201,7 @@ config MIPS_IVR
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select ITE_BOARD_GEN
+	select SYS_HAS_CPU_NEVADA
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -197,6 +217,8 @@ config MIPS_ITE8172
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select ITE_BOARD_GEN
+	select SYS_HAS_CPU_R5432
+	select SYS_HAS_CPU_NEVADA
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -215,6 +237,7 @@ config MACH_JAZZ
 	select GENERIC_ISA_DMA
 	select I8259
 	select ISA
+	select SYS_HAS_CPU_R4X00
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	help
@@ -230,6 +253,7 @@ config LASAT
 	select MIPS_GT64120
 	select MIPS_NILE4
 	select R5000_CPU_SCACHE
+	select SYS_HAS_CPU_R5000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -246,6 +270,11 @@ config MIPS_ATLAS
 	select MIPS_MSC
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_HAS_CPU_MIPS64_R1
+	select SYS_HAS_CPU_NEVADA
+	select SYS_HAS_CPU_RM7000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -269,6 +298,11 @@ config MIPS_MALTA
 	select MIPS_GT64120
 	select MIPS_MSC
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_HAS_CPU_MIPS64_R1
+	select SYS_HAS_CPU_NEVADA
+	select SYS_HAS_CPU_RM7000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -283,6 +317,9 @@ config MIPS_SEAD
 	select IRQ_CPU
 	select DMA_NONCOHERENT
 	select MIPS_BOARDS_GEN
+	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_HAS_CPU_MIPS64_R1
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -295,6 +332,8 @@ config MIPS_SIM
 	bool 'Support for MIPS simulator (MIPSsim)'
 	select DMA_NONCOHERENT
 	select IRQ_CPU
+	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_HAS_CPU_MIPS32_R2
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -314,6 +353,7 @@ config MOMENCO_JAGUAR_ATX
 	select PCI_MARVELL
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_RM9000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -330,6 +370,7 @@ config MOMENCO_OCELOT
 	select MIPS_GT64120
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_RM7000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -348,6 +389,7 @@ config MOMENCO_OCELOT_3
 	select PCI_MARVELL
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_RM9000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -364,6 +406,7 @@ config MOMENCO_OCELOT_C
 	select PCI_MARVELL
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_RM7000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -380,6 +423,7 @@ config MOMENCO_OCELOT_G
 	select PCI_MARVELL
 	select RM7000_CPU_SCACHE
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_RM7000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -413,6 +457,7 @@ config DDB5074
 	select IRQ_CPU
 	select I8259
 	select ISA
+	select SYS_HAS_CPU_R5000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -429,6 +474,7 @@ config DDB5476
 	select IRQ_CPU
 	select I8259
 	select ISA
+	select SYS_HAS_CPU_R5432
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -447,6 +493,7 @@ config DDB5477
 	select HW_HAS_PCI
 	select I8259
 	select IRQ_CPU
+	select SYS_HAS_CPU_R5432
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -459,6 +506,7 @@ config DDB5477
 
 config MACH_VR41XX
 	bool "Support for NEC VR4100 series based machines"
+	select SYS_HAS_CPU_VR41XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 
@@ -470,6 +518,7 @@ config PMC_YOSEMITE
 	select IRQ_CPU_RM7K
 	select IRQ_CPU_RM9K
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_RM9000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -486,6 +535,7 @@ config QEMU
 	select I8259
 	select ISA
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	help
@@ -506,6 +556,8 @@ config SGI_IP22
 	select IP22_CPU_SCACHE
 	select IRQ_CPU
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_R4X00
+	select SYS_HAS_CPU_R5000
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -522,6 +574,7 @@ config SGI_IP27
 	select DMA_IP27
 	select HW_HAS_PCI
 	select PCI_DOMAINS
+	select SYS_HAS_CPU_R10000
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	help
@@ -541,6 +594,9 @@ config SGI_IP32
 	select HW_HAS_PCI
 	select R5000_CPU_SCACHE
 	select RM7000_CPU_SCACHE
+	select SYS_HAS_CPU_R5000
+	select SYS_HAS_CPU_R10000 if BROKEN
+	select SYS_HAS_CPU_RM7000
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	help
@@ -550,11 +606,12 @@ config SIBYTE_BIGSUR
 	bool "Support for Sibyte BigSur"
 	select BOOT_ELF32
 	select DMA_COHERENT
+	select PCI_DOMAINS
 	select SIBYTE_BCM1x80
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select PCI_DOMAINS
 
 config SIBYTE_SWARM
 	bool "Support for Sibyte BCM91250A-SWARM"
@@ -562,6 +619,7 @@ config SIBYTE_SWARM
 	select DMA_COHERENT
 	select SIBYTE_SB1250
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -573,6 +631,7 @@ config SIBYTE_SENTOSA
 	select DMA_COHERENT
 	select SIBYTE_SB1250
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -583,6 +642,7 @@ config SIBYTE_RHONE
 	select DMA_COHERENT
 	select SIBYTE_BCM1125H
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -593,6 +653,7 @@ config SIBYTE_CARMEL
 	select DMA_COHERENT
 	select SIBYTE_BCM1120
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -603,6 +664,7 @@ config SIBYTE_PTSWARM
 	select DMA_COHERENT
 	select SIBYTE_SB1250
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -614,6 +676,7 @@ config SIBYTE_LITTLESUR
 	select DMA_COHERENT
 	select SIBYTE_SB1250
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -625,6 +688,7 @@ config SIBYTE_CRHINE
 	select DMA_COHERENT
 	select SIBYTE_BCM1120
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -635,6 +699,7 @@ config SIBYTE_CRHONE
 	select DMA_COHERENT
 	select SIBYTE_BCM1125
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_SB1
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -652,6 +717,7 @@ config SNI_RM200_PCI
 	select HW_HAS_PCI
 	select I8259
 	select ISA
+	select SYS_HAS_CPU_R4X00
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
 	select SYS_SUPPORTS_BIG_ENDIAN if EXPERIMENTAL
@@ -669,6 +735,7 @@ config TOSHIBA_JMR3927
 	select HW_HAS_PCI
 	select MIPS_TX3927
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_TX39XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select TOSHIBA_BOARDS
@@ -681,6 +748,7 @@ config TOSHIBA_RBTX4927
 	select I8259
 	select ISA
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_TX49XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -699,6 +767,7 @@ config TOSHIBA_RBTX4938
 	select I8259
 	select ISA
 	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_TX49XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -878,6 +947,7 @@ config SOC_AU1200
 
 config SOC_AU1X00
 	bool
+	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_32BIT_KERNEL
 
 config PNX8550
@@ -886,9 +956,10 @@ config PNX8550
 
 config SOC_PNX8550
 	bool
-	select SYS_SUPPORTS_32BIT_KERNEL
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
+	select SYS_HAS_CPU_R4X00
+	select SYS_SUPPORTS_32BIT_KERNEL
 
 config SWAP_IO_SPACE
 	bool
@@ -980,6 +1051,7 @@ choice
 
 config CPU_MIPS32_R1
 	bool "MIPS32 Release 1"
+	depends on SYS_HAS_CPU_MIPS32_R1
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	help
@@ -995,6 +1067,7 @@ config CPU_MIPS32_R1
 
 config CPU_MIPS32_R2
 	bool "MIPS32 Release 2"
+	depends on SYS_HAS_CPU_MIPS32_R2
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	help
@@ -1006,6 +1079,7 @@ config CPU_MIPS32_R2
 
 config CPU_MIPS64_R1
 	bool "MIPS64 Release 1"
+	depends on SYS_HAS_CPU_MIPS64_R1
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
@@ -1022,6 +1096,7 @@ config CPU_MIPS64_R1
 
 config CPU_MIPS64_R2
 	bool "MIPS64 Release 2"
+	depends on SYS_HAS_CPU_MIPS64_R2
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
@@ -1034,6 +1109,7 @@ config CPU_MIPS64_R2
 
 config CPU_R3000
 	bool "R3000"
+	depends on SYS_HAS_CPU_R3000
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_HIGHMEM
 	help
@@ -1046,10 +1122,12 @@ config CPU_R3000
 
 config CPU_TX39XX
 	bool "R39XX"
+	depends on SYS_HAS_CPU_TX39XX
 	select CPU_SUPPORTS_32BIT_KERNEL
 
 config CPU_VR41XX
 	bool "R41xx"
+	depends on SYS_HAS_CPU_VR41XX
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 	help
@@ -1060,6 +1138,7 @@ config CPU_VR41XX
 
 config CPU_R4300
 	bool "R4300"
+	depends on SYS_HAS_CPU_R4300
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 	help
@@ -1067,6 +1146,7 @@ config CPU_R4300
 
 config CPU_R4X00
 	bool "R4x00"
+	depends on SYS_HAS_CPU_R4X00
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 	help
@@ -1075,11 +1155,13 @@ config CPU_R4X00
 
 config CPU_TX49XX
 	bool "R49XX"
+	depends on SYS_HAS_CPU_TX49XX
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 
 config CPU_R5000
 	bool "R5000"
+	depends on SYS_HAS_CPU_R5000
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 	help
@@ -1087,12 +1169,14 @@ config CPU_R5000
 
 config CPU_R5432
 	bool "R5432"
+	depends on SYS_HAS_CPU_R5432
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 
 config CPU_R6000
 	bool "R6000"
 	depends on EXPERIMENTAL
+	depends on SYS_HAS_CPU_R6000
 	select CPU_SUPPORTS_32BIT_KERNEL
 	help
 	  MIPS Technologies R6000 and R6000A series processors.  Note these
@@ -1100,6 +1184,7 @@ config CPU_R6000
 
 config CPU_NEVADA
 	bool "RM52xx"
+	depends on SYS_HAS_CPU_NEVADA
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 	help
@@ -1108,6 +1193,7 @@ config CPU_NEVADA
 config CPU_R8000
 	bool "R8000"
 	depends on EXPERIMENTAL
+	depends on SYS_HAS_CPU_R8000
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_64BIT_KERNEL
 	help
@@ -1116,6 +1202,7 @@ config CPU_R8000
 
 config CPU_R10000
 	bool "R10000"
+	depends on SYS_HAS_CPU_R10000
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
@@ -1125,6 +1212,7 @@ config CPU_R10000
 
 config CPU_RM7000
 	bool "RM7000"
+	depends on SYS_HAS_CPU_RM7000
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
@@ -1132,6 +1220,7 @@ config CPU_RM7000
 
 config CPU_RM9000
 	bool "RM9000"
+	depends on SYS_HAS_CPU_RM9000
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
@@ -1139,12 +1228,70 @@ config CPU_RM9000
 
 config CPU_SB1
 	bool "SB1"
+	depends on SYS_HAS_CPU_SB1
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_64BIT_KERNEL
 	select CPU_SUPPORTS_HIGHMEM
 
 endchoice
 
+config SYS_HAS_CPU_MIPS32_R1
+	bool
+
+config SYS_HAS_CPU_MIPS32_R2
+	bool
+
+config SYS_HAS_CPU_MIPS64_R1
+	bool
+
+config SYS_HAS_CPU_MIPS64_R2
+	bool
+
+config SYS_HAS_CPU_R3000
+	bool
+
+config SYS_HAS_CPU_TX39XX
+	bool
+
+config SYS_HAS_CPU_VR41XX
+	bool
+
+config SYS_HAS_CPU_R4300
+	bool
+
+config SYS_HAS_CPU_R4X00
+	bool
+
+config SYS_HAS_CPU_TX49XX
+	bool
+
+config SYS_HAS_CPU_R5000
+	bool
+
+config SYS_HAS_CPU_R5432
+	bool
+
+config SYS_HAS_CPU_R6000
+	bool
+
+config SYS_HAS_CPU_NEVADA
+	bool
+
+config SYS_HAS_CPU_R8000
+	bool
+
+config SYS_HAS_CPU_R10000
+	bool
+
+config SYS_HAS_CPU_RM7000
+	bool
+
+config SYS_HAS_CPU_RM9000
+	bool
+
+config SYS_HAS_CPU_SB1
+	bool
+
 endmenu
 
 #