Commit daf799cc authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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

Pull MIPS updates from Ralf Baechle:

 - More work on DT support for various platforms

 - Various fixes that were to late to make it straight into 3.9

 - Improved platform support, in particular the Netlogic XLR and
   BCM63xx, and the SEAD3 and Malta eval boards.

 - Support for several Ralink SOC families.

 - Complete support for the microMIPS ASE which basically reencodes the
   existing MIPS32/MIPS64 ISA to use non-constant size instructions.

 - Some fallout from LTO work which remove old cruft and will generally
   make the MIPS kernel easier to maintain and resistant to compiler
   optimization, even in absence of LTO.

 - KVM support.  While MIPS has announced hardware virtualization
   extensions this KVM extension uses trap and emulate mode for
   virtualization of MIPS32.  More KVM work to add support for VZ
   hardware virtualizaiton extensions and MIPS64 will probably already
   be merged for 3.11.

Most of this has been sitting in -next for a long time.  All defconfigs
have been build or run time tested except three for which fixes are being
sent by other maintainers.

Semantic conflict with kvm updates done as per Ralf

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (118 commits)
  MIPS: Add new GIC clockevent driver.
  MIPS: Formatting clean-ups for clocksources.
  MIPS: Refactor GIC clocksource code.
  MIPS: Move 'gic_frequency' to common location.
  MIPS: Move 'gic_present' to common location.
  MIPS: MIPS16e: Add unaligned access support.
  MIPS: MIPS16e: Support handling of delay slots.
  MIPS: MIPS16e: Add instruction formats.
  MIPS: microMIPS: Optimise 'strnlen' core library function.
  MIPS: microMIPS: Optimise 'strlen' core library function.
  MIPS: microMIPS: Optimise 'strncpy' core library function.
  MIPS: microMIPS: Optimise 'memset' core library function.
  MIPS: microMIPS: Add configuration option for microMIPS kernel.
  MIPS: microMIPS: Disable LL/SC and fix linker bug.
  MIPS: microMIPS: Add vdso support.
  MIPS: microMIPS: Add unaligned access support.
  MIPS: microMIPS: Support handling of delay slots.
  MIPS: microMIPS: Add support for exception handling.
  MIPS: microMIPS: Floating point support.
  MIPS: microMIPS: Fix macro naming in micro-assembler.
  ...
parents 6019958d b22d1b6a

Documentation/devicetree/bindings/mips/ralink.txt

0 → 100644
+17 −0
Original line number Diff line number Diff line 
Ralink MIPS SoC device tree bindings



1. SoCs



Each device tree must specify a compatible value for the Ralink SoC

it uses in the compatible property of the root node. The compatible

value must be one of the following values:



  ralink,rt2880-soc

  ralink,rt3050-soc

  ralink,rt3052-soc

  ralink,rt3350-soc

  ralink,rt3352-soc

  ralink,rt3883-soc

  ralink,rt5350-soc

  ralink,mt7620a-soc

  ralink,mt7620n-soc

Documentation/devicetree/bindings/vendor-prefixes.txt

+1 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ onnn ON Semiconductor Corp. 
picochip	Picochip Ltd

powervr	PowerVR (deprecated, use img)

qcom	Qualcomm, Inc.

ralink	Mediatek/Ralink Technology Corp.

ramtron	Ramtron International

realtek Realtek Semiconductor Corp.

renesas	Renesas Electronics Corporation

arch/mips/Kbuild

+4 −0
Original line number Diff line number Diff line
@@ -17,3 +17,7 @@ obj- := $(platform-) 
obj-y += kernel/

obj-y += mm/

obj-y += math-emu/



ifdef CONFIG_KVM

obj-y += kvm/

endif

arch/mips/Kconfig

+43 −9
Original line number Diff line number Diff line
@@ -304,7 +304,6 @@ config MIPS_MALTA 
	select HW_HAS_PCI

	select I8253

	select I8259

	select MIPS_BOARDS_GEN

	select MIPS_BONITO64

	select MIPS_CPU_SCACHE

	select PCI_GT64XXX_PCI0
@@ -335,12 +334,12 @@ config MIPS_SEAD3 
	select BOOT_RAW

	select CEVT_R4K

	select CSRC_R4K

	select CSRC_GIC

	select CPU_MIPSR2_IRQ_VI

	select CPU_MIPSR2_IRQ_EI

	select DMA_NONCOHERENT

	select IRQ_CPU

	select IRQ_GIC

	select MIPS_BOARDS_GEN

	select MIPS_CPU_SCACHE

	select MIPS_MSC

	select SYS_HAS_CPU_MIPS32_R1
@@ -352,6 +351,7 @@ config MIPS_SEAD3 
	select SYS_SUPPORTS_BIG_ENDIAN

	select SYS_SUPPORTS_LITTLE_ENDIAN

	select SYS_SUPPORTS_SMARTMIPS

	select SYS_SUPPORTS_MICROMIPS

	select USB_ARCH_HAS_EHCI

	select USB_EHCI_BIG_ENDIAN_DESC

	select USB_EHCI_BIG_ENDIAN_MMIO
@@ -910,6 +910,9 @@ config CEVT_GT641XX 
config CEVT_R4K

	bool



config CEVT_GIC

	bool



config CEVT_SB1250

	bool
@@ -982,9 +985,6 @@ config MIPS_MSC 
config MIPS_NILE4

	bool



config MIPS_DISABLE_OBSOLETE_IDE

	bool



config SYNC_R4K

	bool
@@ -1075,9 +1075,6 @@ config IRQ_GT641XX 
config IRQ_GIC

	bool



config MIPS_BOARDS_GEN

	bool



config PCI_GT64XXX_PCI0

	bool
@@ -1147,7 +1144,7 @@ config BOOT_ELF32 


config MIPS_L1_CACHE_SHIFT

	int

	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL

	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X

	default "6" if MIPS_CPU_SCACHE

	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON

	default "5"
@@ -1236,6 +1233,7 @@ config CPU_MIPS32_R2 
	select CPU_HAS_PREFETCH

	select CPU_SUPPORTS_32BIT_KERNEL

	select CPU_SUPPORTS_HIGHMEM

	select HAVE_KVM

	help

	  Choose this option to build a kernel for release 2 or later of the

	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
@@ -1736,6 +1734,20 @@ config 64BIT 


endchoice



config KVM_GUEST

	bool "KVM Guest Kernel"

	help

	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode



config KVM_HOST_FREQ

	int "KVM Host Processor Frequency (MHz)"

	depends on KVM_GUEST

	default 500

	help

	  Select this option if building a guest kernel for KVM to skip

	  RTC emulation when determining guest CPU Frequency.  Instead, the guest

	  processor frequency is automatically derived from the host frequency.



choice

	prompt "Kernel page size"

	default PAGE_SIZE_4KB
@@ -1811,6 +1823,15 @@ config FORCE_MAX_ZONEORDER 
	  The page size is not necessarily 4KB.  Keep this in mind

	  when choosing a value for this option.



config CEVT_GIC

	bool "Use GIC global counter for clock events"

	depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)

	help

	  Use the GIC global counter for the clock events. The R4K clock

	  event driver is always present, so if the platform ends up not

	  detecting a GIC, it will fall back to the R4K timer for the

	  generation of clock events.



config BOARD_SCACHE

	bool
@@ -2016,6 +2037,7 @@ config SB1_PASS_2_1_WORKAROUNDS 
	depends on CPU_SB1 && CPU_SB1_PASS_2

	default y





config 64BIT_PHYS_ADDR

	bool
@@ -2034,6 +2056,13 @@ config CPU_HAS_SMARTMIPS 
	  you don't know you probably don't have SmartMIPS and should say N

	  here.



config CPU_MICROMIPS

	depends on SYS_SUPPORTS_MICROMIPS

	bool "Build kernel using microMIPS ISA"

	help

	  When this option is enabled the kernel will be built using the

	  microMIPS ISA



config CPU_HAS_WB

	bool
@@ -2096,6 +2125,9 @@ config SYS_SUPPORTS_HIGHMEM 
config SYS_SUPPORTS_SMARTMIPS

	bool



config SYS_SUPPORTS_MICROMIPS

	bool



config ARCH_FLATMEM_ENABLE

	def_bool y

	depends on !NUMA && !CPU_LOONGSON2
@@ -2556,3 +2588,5 @@ source "security/Kconfig" 
source "crypto/Kconfig"



source "lib/Kconfig"



source "arch/mips/kvm/Kconfig"

arch/mips/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -114,6 +114,7 @@ cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*e 
cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))



cflags-$(CONFIG_CPU_HAS_SMARTMIPS)	+= $(call cc-option,-msmartmips)

cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips -mno-jals)



cflags-$(CONFIG_SB1XXX_CORELIS)	+= $(call cc-option,-mno-sched-prolog) \

				   -fno-omit-frame-pointer

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