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

…linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits)
  MIPS: Lasat: Fix botched changes to sysctl code.
  RTC: rtc-cmos.c: Fix warning on MIPS
  MIPS: Cleanup random differences beween lmo and Linus' kernel.
  MIPS: No longer hardwire CONFIG_EMBEDDED to y
  MIPS: Fix and enhance built-in kernel command line
  MIPS: eXcite: Remove platform.
  MIPS: Loongson: Cleanups of serial port support
  MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer
  MIPS: Excite: move iodev_remove to .devexit.text
  MIPS: Lasat: Convert to proc_fops / seq_file
  MIPS: Cleanup signal code initialization
  MIPS: Modularize COP2 handling
  MIPS: Move EARLY_PRINTK to Kconfig.debug
  MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function
  MIPS: Yeeloong 2F: Add LID open event as the wakeup event
  MIPS: Yeeloong 2F: Add basic EC operations
  MIPS: Move several variables from .bss to .init.data
  MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address
  MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5
  MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer
  ...

arch/mips/Kconfig

@@ -5,9 +5,12 @@ config MIPS
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select HAVE_ARCH_KGDB
-	# Horrible source of confusion.  Die, die, die ...
-	select EMBEDDED
-	select RTC_LIB if !LEMOTE_FULOONG2E
+	select HAVE_FUNCTION_TRACER
+	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
+	select HAVE_DYNAMIC_FTRACE
+	select HAVE_FTRACE_MCOUNT_RECORD
+	select HAVE_FUNCTION_GRAPH_TRACER
+	select RTC_LIB if !MACH_LOONGSON
 
 mainmenu "Linux/MIPS Kernel Configuration"
 
@@ -22,6 +25,7 @@ choice
 
 config MACH_ALCHEMY
 	bool "Alchemy processor based machines"
+	select SYS_SUPPORTS_ZBOOT
 
 config AR7
 	bool "Texas Instruments AR7"
@@ -36,30 +40,14 @@ config AR7
 	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_ZBOOT_UART16550
 	select GENERIC_GPIO
 	select GCD
 	select VLYNQ
 	help
 	  Support for the Texas Instruments AR7 System-on-a-Chip
 	  family: TNETD7100, 7200 and 7300.
 
-config BASLER_EXCITE
-	bool "Basler eXcite smart camera"
-	select CEVT_R4K
-	select CSRC_R4K
-	select DMA_COHERENT
-	select HW_HAS_PCI
-	select IRQ_CPU
-	select IRQ_CPU_RM7K
-	select IRQ_CPU_RM9K
-	select MIPS_RM9122
-	select SYS_HAS_CPU_RM9000
-	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_BIG_ENDIAN
-	help
-	  The eXcite is a smart camera platform manufactured by
-	  Basler Vision Technologies AG.
-
 config BCM47XX
 	bool "BCM47XX based boards"
 	select CEVT_R4K
@@ -192,6 +180,7 @@ config LASAT
 
 config MACH_LOONGSON
 	bool "Loongson family of machines"
+	select SYS_SUPPORTS_ZBOOT_UART16550
 	help
 	  This enables the support of Loongson family of machines.
 
@@ -233,6 +222,7 @@ config MIPS_MALTA
 	select SYS_SUPPORTS_MIPS_CMP
 	select SYS_SUPPORTS_MULTITHREADING
 	select SYS_SUPPORTS_SMARTMIPS
+	select SYS_SUPPORTS_ZBOOT
 	help
 	  This enables support for the MIPS Technologies Malta evaluation
 	  board.
@@ -334,6 +324,24 @@ config PMC_YOSEMITE
 	  Yosemite is an evaluation board for the RM9000x2 processor
 	  manufactured by PMC-Sierra.
 
+config POWERTV
+	bool "Cisco PowerTV"
+	select BOOT_ELF32
+	select CEVT_R4K
+	select CPU_MIPSR2_IRQ_VI
+	select CPU_MIPSR2_IRQ_EI
+	select CSRC_POWERTV
+	select DMA_NONCOHERENT
+	select HW_HAS_PCI
+	select SYS_HAS_EARLY_PRINTK
+	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_HIGHMEM
+	select USB_OHCI_LITTLE_ENDIAN
+	help
+	  This enables support for the Cisco PowerTV Platform.
+
 config SGI_IP22
 	bool "SGI IP22 (Indy/Indigo2)"
 	select ARC
@@ -674,11 +682,11 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
 endchoice
 
 source "arch/mips/alchemy/Kconfig"
-source "arch/mips/basler/excite/Kconfig"
 source "arch/mips/bcm63xx/Kconfig"
 source "arch/mips/jazz/Kconfig"
 source "arch/mips/lasat/Kconfig"
 source "arch/mips/pmc-sierra/Kconfig"
+source "arch/mips/powertv/Kconfig"
 source "arch/mips/sgi-ip27/Kconfig"
 source "arch/mips/sibyte/Kconfig"
 source "arch/mips/txx9/Kconfig"
@@ -778,6 +786,9 @@ config CSRC_BCM1480
 config CSRC_IOASIC
 	bool
 
+config CSRC_POWERTV
+	bool
+
 config CSRC_R4K_LIB
 	bool
 
@@ -806,20 +817,6 @@ config DMA_NONCOHERENT
 config DMA_NEED_PCI_MAP_STATE
 	bool
 
-config EARLY_PRINTK
-	bool "Early printk" if EMBEDDED && DEBUG_KERNEL
-	depends on SYS_HAS_EARLY_PRINTK
-	default y
-	help
-	  This option enables special console drivers which allow the kernel
-	  to print messages very early in the bootup process.
-
-	  This is useful for kernel debugging when your machine crashes very
-	  early before the console code is initialized. For normal operation,
-	  it is not recommended because it looks ugly on some machines and
-	  doesn't cooperate with an X server. You should normally say N here,
-	  unless you want to debug such a crash.
-
 config SYS_HAS_EARLY_PRINTK
 	bool
 
@@ -1069,6 +1066,21 @@ config CPU_LOONGSON2E
 	  The Loongson 2E processor implements the MIPS III instruction set
 	  with many extensions.
 
+	  It has an internal FPGA northbridge, which is compatiable to
+	  bonito64.
+
+config CPU_LOONGSON2F
+	bool "Loongson 2F"
+	depends on SYS_HAS_CPU_LOONGSON2F
+	select CPU_LOONGSON2
+	help
+	  The Loongson 2F processor implements the MIPS III instruction set
+	  with many extensions.
+
+	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
+	  have a similar programming interface with FPGA northbridge used in
+	  Loongson2E.
+
 config CPU_MIPS32_R1
 	bool "MIPS32 Release 1"
 	depends on SYS_HAS_CPU_MIPS32_R1
@@ -1294,6 +1306,16 @@ config CPU_CAVIUM_OCTEON
 
 endchoice
 
+config SYS_SUPPORTS_ZBOOT
+	bool
+	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_LZMA
+
+config SYS_SUPPORTS_ZBOOT_UART16550
+	bool
+	select SYS_SUPPORTS_ZBOOT
+
 config CPU_LOONGSON2
 	bool
 	select CPU_SUPPORTS_32BIT_KERNEL
@@ -1303,6 +1325,12 @@ config CPU_LOONGSON2
 config SYS_HAS_CPU_LOONGSON2E
 	bool
 
+config SYS_HAS_CPU_LOONGSON2F
+	bool
+	select CPU_SUPPORTS_CPUFREQ
+	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
+	select CPU_SUPPORTS_UNCACHED_ACCELERATED
+
 config SYS_HAS_CPU_MIPS32_R1
 	bool
 
@@ -1411,8 +1439,17 @@ config CPU_SUPPORTS_32BIT_KERNEL
 	bool
 config CPU_SUPPORTS_64BIT_KERNEL
 	bool
+config CPU_SUPPORTS_CPUFREQ
+	bool
+config CPU_SUPPORTS_ADDRWINCFG
+	bool
 config CPU_SUPPORTS_HUGEPAGES
 	bool
+config CPU_SUPPORTS_UNCACHED_ACCELERATED
+	bool
+config MIPS_PGD_C0_CONTEXT
+	bool
+	default y if 64BIT && CPU_MIPSR2
 
 #
 # Set to y for ptrace access to watch registers.
@@ -2024,15 +2061,6 @@ config STACKTRACE_SUPPORT
 
 source "init/Kconfig"
 
-config PROBE_INITRD_HEADER
-	bool "Probe initrd header created by addinitrd"
-	depends on BLK_DEV_INITRD
-	help
-	  Probe initrd header at the last page of kernel image.
-	  Say Y here if you are using arch/mips/boot/addinitrd.c to
-	  add initrd or initramfs image to the kernel image.
-	  Otherwise, say N.
-
 source "kernel/Kconfig.freezer"
 
 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
@@ -2104,6 +2132,7 @@ config MMU
 
 config I8253
 	bool
+	select MIPS_EXTERNAL_TIMER
 
 config ZONE_DMA32
 	bool
@@ -2180,6 +2209,8 @@ source "kernel/power/Kconfig"
 
 endmenu
 
+source "arch/mips/kernel/cpufreq/Kconfig"
+
 source "net/Kconfig"
 
 source "drivers/Kconfig"

arch/mips/Kconfig.debug

@@ -6,15 +6,66 @@ config TRACE_IRQFLAGS_SUPPORT
 
 source "lib/Kconfig.debug"
 
+config EARLY_PRINTK
+	bool "Early printk" if EMBEDDED
+	depends on SYS_HAS_EARLY_PRINTK
+	default y
+	help
+	  This option enables special console drivers which allow the kernel
+	  to print messages very early in the bootup process.
+
+	  This is useful for kernel debugging when your machine crashes very
+	  early before the console code is initialized. For normal operation,
+	  it is not recommended because it looks ugly on some machines and
+	  doesn't cooperate with an X server. You should normally say N here,
+	  unless you want to debug such a crash.
+
+config CMDLINE_BOOL
+	bool "Built-in kernel command line"
+	default n
+	help
+	  For most systems, it is firmware or second stage bootloader that
+	  by default specifies the kernel command line options.  However,
+	  it might be necessary or advantageous to either override the
+	  default kernel command line or add a few extra options to it.
+	  For such cases, this option allows you to hardcode your own
+	  command line options directly into the kernel.  For that, you
+	  should choose 'Y' here, and fill in the extra boot arguments
+	  in CONFIG_CMDLINE.
+
+	  The built-in options will be concatenated to the default command
+	  line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default
+	  command line will be ignored and replaced by the built-in string.
+
+	  Most MIPS systems will normally expect 'N' here and rely upon
+	  the command line from the firmware or the second-stage bootloader.
+
 config CMDLINE
 	string "Default kernel command string"
+	depends on CMDLINE_BOOL
 	default ""
 	help
 	  On some platforms, there is currently no way for the boot loader to
-	  pass arguments to the kernel. For these platforms, you can supply
-	  some command-line options at build time by entering them here.  In
-	  other cases you can specify kernel args so that you don't have
-	  to set them up in board prom initialization routines.
+	  pass arguments to the kernel.  For these platforms, and for the cases
+	  when you want to add some extra options to the command line or ignore
+	  the default command line, you can supply some command-line options at
+	  build time by entering them here.  In other cases you can specify
+	  kernel args so that you don't have to set them up in board prom
+	  initialization routines.
+
+	  For more information, see the CMDLINE_BOOL and CMDLINE_OVERRIDE
+	  options.
+
+config CMDLINE_OVERRIDE
+	bool "Built-in command line overrides firware arguments"
+	default n
+	depends on CMDLINE_BOOL
+	help
+	  By setting this option to 'Y' you will have your kernel ignore
+	  command line arguments from firmware or second stage bootloader.
+	  Instead, the built-in command line will be used exclusively.
+
+	  Normally, you will choose 'N' here.
 
 config DEBUG_STACK_USAGE
 	bool "Enable stack utilization instrumentation"