Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (28 commits)
  [MIPS] Rework cobalt_board_id
  [MIPS] Use RTC_CMOS for Cobalt
  [MIPS] Use platform_device for Cobalt UART
  [MIPS] Separate Alchemy processor based boards config
  [MIPS] Fix build error in atomic64_cmpxchg
  [MIPS] Run checksyscalls for N32 and O32 ABI
  [MIPS] tlbex: use __maybe_unused
  [MIPS] excite: use __maybe_unused
  [MIPS] Add extern cobalt_board_id
  [MIPS] Remove unused CONFIG_TOSHIBA_BOARDS
  [MIPS] Rename tb0229_defconfig to tb0219_defconfig
  [MIPS] Update tb0229_defconfig; add CONFIG_GPIO_TB0219.
  [MIPS] Add minimum defconfig for RBHMA4200
  [MIPS] SB1: Build fix.
  [MIPS] Drop __devinit tag from allocate_irqno() and free_irqno()
  [MIPS] clocksource: use CLOCKSOURCE_MASK() macro
  [MIPS] Remove LIMITED_DMA support
  [MIPS] Remove Momenco Jaguar ATX support
  [MIPS] Remove Momenco Ocelot G support
  [MIPS] FPU hazard handling
  ...

56 files changed, 636 insertions, 3847 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 16ecea3c081..0f09412e1b7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -15,121 +15,8 @@ choice
 	prompt "System type"
 	default SGI_IP22
 
-config MIPS_MTX1
-	bool "4G Systems MTX-1 board"
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select RESOURCES_64BIT if 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
-	bool "AMD Alchemy PB1000 board"
-	select SOC_AU1000
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
-	select SWAP_IO_SPACE
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config MIPS_PB1100
-	bool "AMD Alchemy PB1100 board"
-	select SOC_AU1100
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
-	select SWAP_IO_SPACE
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config MIPS_PB1500
-	bool "AMD Alchemy PB1500 board"
-	select SOC_AU1500
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config MIPS_PB1550
-	bool "AMD Alchemy PB1550 board"
-	select SOC_AU1550
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config MIPS_PB1200
-	bool "AMD Alchemy PB1200 board"
-	select SOC_AU1200
-	select DMA_NONCOHERENT
-	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config MIPS_DB1000
-	bool "AMD Alchemy DB1000 board"
-	select SOC_AU1000
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select RESOURCES_64BIT if 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
-	bool "AMD Alchemy DB1500 board"
-	select SOC_AU1500
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_BIG_ENDIAN
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config MIPS_DB1550
-	bool "AMD Alchemy DB1550 board"
-	select SOC_AU1550
-	select HW_HAS_PCI
-	select DMA_NONCOHERENT
-	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config MIPS_DB1200
-	bool "AMD Alchemy DB1200 board"
-	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 MACH_ALCHEMY
+	bool "Alchemy processor based machines"
 
 config BASLER_EXCITE
 	bool "Basler eXcite smart camera"
@@ -369,28 +256,6 @@ config MIPS_SIM
 	  This option enables support for MIPS Technologies MIPSsim software
 	  emulator.
 
-config MOMENCO_JAGUAR_ATX
-	bool "Momentum Jaguar board"
-	select BOOT_ELF32
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select IRQ_CPU
-	select IRQ_CPU_RM7K
-	select IRQ_MV64340
-	select LIMITED_DMA
-	select PCI_MARVELL
-	select RM7000_CPU_SCACHE
-	select SWAP_IO_SPACE
-	select SYS_HAS_CPU_RM9000
-	select SYS_HAS_EARLY_PRINTK
-	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_64BIT_KERNEL
-	select SYS_SUPPORTS_BIG_ENDIAN
-	select SYS_SUPPORTS_KGDB
-	help
-	  The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
-	  Momentum Computer <http://www.momenco.com/>.
-
 config MOMENCO_OCELOT
 	bool "Momentum Ocelot board"
 	select DMA_NONCOHERENT
@@ -446,29 +311,6 @@ config MOMENCO_OCELOT_C
 	  The Ocelot is a MIPS-based Single Board Computer (SBC) made by
 	  Momentum Computer <http://www.momenco.com/>.
 
-config MOMENCO_OCELOT_G
-	bool "Momentum Ocelot-G board"
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select IRQ_CPU
-	select IRQ_CPU_RM7K
-	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 if BROKEN
-	select SYS_SUPPORTS_BIG_ENDIAN
-	help
-	  The Ocelot is a MIPS-based Single Board Computer (SBC) made by
-	  Momentum Computer <http://www.momenco.com/>.
-
-config MIPS_XXS1500
-	bool "MyCable XXS1500 board"
-	select DMA_NONCOHERENT
-	select SOC_AU1500
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-
 config PNX8550_JBS
 	bool "Philips PNX8550 based JBS board"
 	select PNX8550
@@ -775,7 +617,6 @@ config TOSHIBA_JMR3927
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_BIG_ENDIAN
-	select TOSHIBA_BOARDS
 	select GENERIC_HARDIRQS_NO__DO_IRQ
 
 config TOSHIBA_RBTX4927
@@ -791,7 +632,6 @@ config TOSHIBA_RBTX4927
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_KGDB
-	select TOSHIBA_BOARDS
 	select GENERIC_HARDIRQS_NO__DO_IRQ
 	help
 	  This Toshiba board is based on the TX4927 processor. Say Y here to
@@ -811,7 +651,6 @@ config TOSHIBA_RBTX4938
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_KGDB
-	select TOSHIBA_BOARDS
 	select GENERIC_HARDIRQS_NO__DO_IRQ
 	help
 	  This Toshiba board is based on the TX4938 processor. Say Y here to
@@ -819,11 +658,11 @@ config TOSHIBA_RBTX4938
 
 endchoice
 
+source "arch/mips/au1000/Kconfig"
 source "arch/mips/ddb5xxx/Kconfig"
 source "arch/mips/gt64120/ev64120/Kconfig"
 source "arch/mips/jazz/Kconfig"
 source "arch/mips/lasat/Kconfig"
-source "arch/mips/momentum/Kconfig"
 source "arch/mips/pmc-sierra/Kconfig"
 source "arch/mips/sgi-ip27/Kconfig"
 source "arch/mips/sibyte/Kconfig"
@@ -923,11 +762,6 @@ config GENERIC_ISA_DMA
 config I8259
 	bool
 
-config LIMITED_DMA
-	bool
-	select HIGHMEM
-	select SYS_SUPPORTS_HIGHMEM
-
 config MIPS_BONITO64
 	bool
 
@@ -1013,33 +847,6 @@ config MIPS_RM9122
 config PCI_MARVELL
 	bool
 
-config SOC_AU1000
-	bool
-	select SOC_AU1X00
-
-config SOC_AU1100
-	bool
-	select SOC_AU1X00
-
-config SOC_AU1500
-	bool
-	select SOC_AU1X00
-
-config SOC_AU1550
-	bool
-	select SOC_AU1X00
-
-config SOC_AU1200
-	bool
-	select SOC_AU1X00
-
-config SOC_AU1X00
-	bool
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_APM_EMULATION
-	select SYS_SUPPORTS_KGDB
-
 config SERIAL_RM9000
 	bool
 
@@ -1081,9 +888,9 @@ config WDT_RM9000
 choice
 	prompt "Galileo Chip Clock"
 	#default SYSCLK_83 if MIPS_EV64120
-	depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
+	depends on MIPS_EV64120 || MOMENCO_OCELOT
 	default SYSCLK_83 if MIPS_EV64120
-	default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
+	default SYSCLK_100 if MOMENCO_OCELOT
 
 config SYSCLK_75
 	bool "75" if MIPS_EV64120
@@ -1092,7 +899,7 @@ config SYSCLK_83
 	bool "83.3" if MIPS_EV64120
 
 config SYSCLK_100
-	bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
+	bool "100" if MIPS_EV64120 || MOMENCO_OCELOT
 
 endchoice
 
@@ -1131,9 +938,6 @@ config ARC64
 config BOOT_ELF64
 	bool
 
-config TOSHIBA_BOARDS
-	bool
-
 menu "CPU selection"
 
 choice
@@ -1557,6 +1361,7 @@ config MIPS_MT_SMP
 	bool "Use 1 TC on each available VPE for SMP"
 	depends on SYS_SUPPORTS_MULTITHREADING
 	select CPU_MIPSR2_IRQ_VI
+	select CPU_MIPSR2_IRQ_EI
 	select CPU_MIPSR2_SRS
 	select MIPS_MT
 	select NR_CPUS_DEFAULT_2
@@ -1572,6 +1377,7 @@ config MIPS_MT_SMTC
 	#depends on CPU_MIPS64_R2		# once there is hardware ...
 	depends on SYS_SUPPORTS_MULTITHREADING
 	select CPU_MIPSR2_IRQ_VI
+	select CPU_MIPSR2_IRQ_EI
 	select CPU_MIPSR2_SRS
 	select MIPS_MT
 	select NR_CPUS_DEFAULT_8
@@ -1584,6 +1390,8 @@ config MIPS_MT_SMTC
 config MIPS_VPE_LOADER
 	bool "VPE loader support."
 	depends on SYS_SUPPORTS_MULTITHREADING
+	select CPU_MIPSR2_IRQ_VI
+	select CPU_MIPSR2_IRQ_EI
 	select MIPS_MT
 	help
 	  Includes a loader for loading an elf relocatable object
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 4892db88a86..f450066b624 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -343,15 +343,6 @@ cflags-$(CONFIG_MOMENCO_OCELOT)	+= -Iinclude/asm-mips/mach-ocelot
 load-$(CONFIG_MOMENCO_OCELOT)	+= 0xffffffff80100000
 
 #
-# Momentum Ocelot-G board
-#
-# The Ocelot-G setup.o must be linked early - it does the ioremap() for the
-# mips_io_port_base.
-#
-core-$(CONFIG_MOMENCO_OCELOT_G)	+= arch/mips/momentum/ocelot_g/
-load-$(CONFIG_MOMENCO_OCELOT_G)	+= 0xffffffff80100000
-
-#
 # Momentum Ocelot-C and -CS boards
 #
 # The Ocelot-C[S] setup.o must be linked early - it does the ioremap() for the
@@ -388,17 +379,6 @@ cflags-$(CONFIG_BASLER_EXCITE)	+= -Iinclude/asm-mips/mach-excite
 load-$(CONFIG_BASLER_EXCITE)	+= 0x80100000
 
 #
-# Momentum Jaguar ATX
-#
-core-$(CONFIG_MOMENCO_JAGUAR_ATX)	+= arch/mips/momentum/jaguar_atx/
-cflags-$(CONFIG_MOMENCO_JAGUAR_ATX)	+= -Iinclude/asm-mips/mach-ja
-#ifdef CONFIG_JAGUAR_DMALOW
-#load-$(CONFIG_MOMENCO_JAGUAR_ATX)	+= 0xffffffff88000000
-#else
-load-$(CONFIG_MOMENCO_JAGUAR_ATX)	+= 0xffffffff80100000
-#endif
-
-#
 # NEC DDB
 #
 core-$(CONFIG_DDB5XXX_COMMON)	+= arch/mips/ddb5xxx/common/
@@ -729,3 +709,25 @@ archclean:
 CLEAN_FILES += vmlinux.32 \
 	       vmlinux.64 \
 	       vmlinux.ecoff
+
+quiet_cmd_syscalls_n32 = CALL-N32 $<
+      cmd_syscalls_n32 = $(CONFIG_SHELL) $< $(CC) $(c_flags) -mabi=n32
+
+quiet_cmd_syscalls_o32 = CALL-O32 $<
+      cmd_syscalls_o32 = $(CONFIG_SHELL) $< $(CC) $(c_flags) -mabi=32
+
+PHONY += missing-syscalls-n32 missing-syscalls-o32
+
+missing-syscalls-n32: scripts/checksyscalls.sh FORCE
+	$(call cmd,syscalls_n32)
+
+missing-syscalls-o32: scripts/checksyscalls.sh FORCE
+	$(call cmd,syscalls_o32)
+
+archprepare:
+ifdef CONFIG_MIPS32_N32
+	$(Q)$(MAKE) $(build)=arch/mips missing-syscalls-n32
+endif
+ifdef CONFIG_MIPS32_O32
+	$(Q)$(MAKE) $(build)=arch/mips missing-syscalls-o32
+endif
diff --git a/arch/mips/au1000/Kconfig b/arch/mips/au1000/Kconfig
new file mode 100644
index 00000000000..abea8809825
--- /dev/null
+++ b/arch/mips/au1000/Kconfig
@@ -0,0 +1,142 @@
+choice
+	prompt "Machine type"
+	depends on MACH_ALCHEMY
+	default MIPS_DB1000
+
+config MIPS_MTX1
+	bool "4G Systems MTX-1 board"
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select RESOURCES_64BIT if PCI
+	select SOC_AU1500
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_BOSPORUS
+	bool "Alchemy Bosporus board"
+	select SOC_AU1500
+	select DMA_NONCOHERENT
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_DB1000
+	bool "Alchemy DB1000 board"
+	select SOC_AU1000
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select RESOURCES_64BIT if PCI
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_DB1100
+	bool "Alchemy DB1100 board"
+	select SOC_AU1100
+	select DMA_NONCOHERENT
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_DB1200
+	bool "Alchemy DB1200 board"
+	select SOC_AU1200
+	select DMA_COHERENT
+	select MIPS_DISABLE_OBSOLETE_IDE
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_DB1500
+	bool "Alchemy DB1500 board"
+	select SOC_AU1500
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select MIPS_DISABLE_OBSOLETE_IDE
+	select RESOURCES_64BIT if PCI
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_DB1550
+	bool "Alchemy DB1550 board"
+	select SOC_AU1550
+	select HW_HAS_PCI
+	select DMA_NONCOHERENT
+	select MIPS_DISABLE_OBSOLETE_IDE
+	select RESOURCES_64BIT if PCI
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_MIRAGE
+	bool "Alchemy Mirage board"
+	select DMA_NONCOHERENT
+	select SOC_AU1500
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_PB1000
+	bool "Alchemy PB1000 board"
+	select SOC_AU1000
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select RESOURCES_64BIT if PCI
+	select SWAP_IO_SPACE
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_PB1100
+	bool "Alchemy PB1100 board"
+	select SOC_AU1100
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select RESOURCES_64BIT if PCI
+	select SWAP_IO_SPACE
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_PB1200
+	bool "Alchemy PB1200 board"
+	select SOC_AU1200
+	select DMA_NONCOHERENT
+	select MIPS_DISABLE_OBSOLETE_IDE
+	select RESOURCES_64BIT if PCI
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_PB1500
+	bool "Alchemy PB1500 board"
+	select SOC_AU1500
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select RESOURCES_64BIT if PCI
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_PB1550
+	bool "Alchemy PB1550 board"
+	select SOC_AU1550
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select MIPS_DISABLE_OBSOLETE_IDE
+	select RESOURCES_64BIT if PCI
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MIPS_XXS1500
+	bool "MyCable XXS1500 board"
+	select DMA_NONCOHERENT
+	select SOC_AU1500
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
+endchoice
+
+config SOC_AU1000
+	bool
+	select SOC_AU1X00
+
+config SOC_AU1100
+	bool
+	select SOC_AU1X00
+
+config SOC_AU1500
+	bool
+	select SOC_AU1X00
+
+config SOC_AU1550
+	bool
+	select SOC_AU1X00
+
+config SOC_AU1200
+	bool
+	select SOC_AU1X00
+
+config SOC_AU1X00
+	bool
+	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_APM_EMULATION
+	select SYS_SUPPORTS_KGDB
diff --git a/arch/mips/basler/excite/excite_device.c b/arch/mips/basler/excite/excite_device.c
index cc1ce77eab4..e00bc2d7f30 100644
--- a/arch/mips/basler/excite/excite_device.c
+++ b/arch/mips/basler/excite/excite_device.c
@@ -68,7 +68,7 @@ enum {
 
 
 static struct resource
-	excite_ctr_resource __attribute__((unused)) = {
+	excite_ctr_resource __maybe_unused = {
 		.name		= "GPI counters",
 		.start		= 0,
 		.end		= 5,
@@ -77,7 +77,7 @@ static struct resource
 		.sibling	= NULL,
 		.child		= NULL
 	},
-	excite_gpislice_resource __attribute__((unused)) = {
+	excite_gpislice_resource __maybe_unused = {
 		.name		= "GPI slices",
 		.start		= 0,
 		.end		= 1,
@@ -86,7 +86,7 @@ static struct resource
 		.sibling	= NULL,
 		.child		= NULL
 	},
-	excite_mdio_channel_resource __attribute__((unused)) = {
+	excite_mdio_channel_resource __maybe_unused = {
 		.name		= "MDIO channels",
 		.start		= 0,
 		.end		= 1,
@@ -95,7 +95,7 @@ static struct resource
 		.sibling	= NULL,
 		.child		= NULL
 	},
-	excite_fifomem_resource __attribute__((unused)) = {
+	excite_fifomem_resource __maybe_unused = {
 		.name		= "FIFO memory",
 		.start		= 0,
 		.end		= 767,
@@ -104,7 +104,7 @@ static struct resource
 		.sibling	= NULL,
 		.child		= NULL
 	},
-	excite_scram_resource __attribute__((unused)) = {
+	excite_scram_resource __maybe_unused = {
 		.name		= "Scratch RAM",
 		.start		= EXCITE_PHYS_SCRAM,
 		.end		= EXCITE_PHYS_SCRAM + EXCITE_SIZE_SCRAM - 1,
@@ -113,7 +113,7 @@ static struct resource
 		.sibling	= NULL,
 		.child		= NULL
 	},
-	excite_fpga_resource __attribute__((unused)) = {
+	excite_fpga_resource __maybe_unused = {
 		.name		= "System FPGA",
 		.start		= EXCITE_PHYS_FPGA,
 		.end		= EXCITE_PHYS_FPGA + EXCITE_SIZE_FPGA - 1,
@@ -122,7 +122,7 @@ static struct resource
 		.sibling	= NULL,
 		.child		= NULL
 	},
-	excite_nand_resource __attribute__((unused)) = {
+	excite_nand_resource __maybe_unused = {
 		.name		= "NAND flash control",
 		.start		= EXCITE_PHYS_NAND,
 		.end		= EXCITE_PHYS_NAND + EXCITE_SIZE_NAND - 1,
@@ -131,7 +131,7 @@ static struct resource
 		.sibling	= NULL,
 		.child		= NULL
 	},
-	excite_titan_resource __attribute__((unused)) = {
+	excite_titan_resource __maybe_unused = {
 		.name		= "TITAN registers",
 		.start		= EXCITE_PHYS_TITAN,
 		.end		= EXCITE_PHYS_TITAN + EXCITE_SIZE_TITAN - 1,
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile
index 9565b2104dc..c292f80a8c7 100644
--- a/arch/mips/cobalt/Makefile
+++ b/arch/mips/cobalt/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the Cobalt micro systems family specific parts of the kernel
 #
 
-obj-y	 := irq.o reset.o setup.o buttons.o
+obj-y := buttons.o irq.o reset.o rtc.o serial.o setup.o
 
 obj-$(CONFIG_PCI)		+= pci.o
 obj-$(CONFIG_EARLY_PRINTK)	+= console.o
diff --git a/arch/mips/cobalt/rtc.c b/arch/mips/cobalt/rtc.c
new file mode 100644
index 00000000000..284daefc5c5
--- /dev/null
+++ b/arch/mips/cobalt/rtc.c
@@ -0,0 +1,63 @@
+/*
+ *  Registration of Cobalt RTC platform device.
+ *
+ *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+static struct resource cobalt_rtc_resource[] __initdata = {
+	{
+		.start	= 0x70,
+		.end	= 0x77,
+		.flags	= IORESOURCE_IO,
+	},
+	{
+		.start	= 8,
+		.end	= 8,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static __init int cobalt_rtc_add(void)
+{
+	struct platform_device *pdev;
+	int retval;
+
+	pdev = platform_device_alloc("rtc_cmos", -1);
+	if (!pdev)
+		return -ENOMEM;
+
+	retval = platform_device_add_resources(pdev, cobalt_rtc_resource,
+	                                       ARRAY_SIZE(cobalt_rtc_resource));
+	if (retval)