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Commit 7f9f4430 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'cris-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris 

Pull arch/cris updates from Jesper Nilsson:
 "Some much needed love for the CRIS-port.

  There's a bunch of changes this time, giving the CRISv32 port a bit of
  modern makeover with device-tree, irq domain and gpiolib support, and
  more switchover to generic frameworks.

  Some small fixes and removal of the theoretical SMP support brings up
  the rear"

* tag 'cris-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris:
  cris: fix integer overflow in ELF_ET_DYN_BASE
  CRISv32: use GENERIC_SCHED_CLOCK
  CRISv32: use MMIO clocksource
  CRISv32: use generic clockevents
  CRIS: use generic headers via Kbuild
  CRIS: use generic cmpxchg.h
  CRIS: use generic atomic.h
  CRIS: use generic atomic bitops
  CRISv10: remove redundant macros from system.h
  CRIS: remove SMP code
  CRISv32: don't enable irqs in INIT_THREAD
  CRISv32: handle multiple signals
  CRISv32: prevent bogus restarts on sigreturn
  CRISv32: don't attempt syscall restart on irq exit
  Add binding documentation for CRIS
  CRIS: add Axis 88 board device tree
  CRISv32: add device tree support
  CRISv32: add irq domains support
  CRIS: enable GPIOLIB
parents 63905bba d939b52a

Documentation/devicetree/bindings/cris/axis.txt

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Axis Communications AB

ARTPEC series SoC Device Tree Bindings





CRISv32 based SoCs are ETRAX FS and ARTPEC-3:



    - compatible = "axis,crisv32";

Documentation/devicetree/bindings/cris/boards.txt

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Boards based on the CRIS SoCs:



Required root node properties:

    - compatible = should be one or more of the following:

	- "axis,dev88"	- for Axis devboard 88 with ETRAX FS



Optional:

Documentation/devicetree/bindings/cris/interrupts.txt

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* CRISv32 Interrupt Controller



Interrupt controller for the CRISv32 SoCs.



Main node required properties:



- compatible : should be:

	"axis,crisv32-intc"

- interrupt-controller : Identifies the node as an interrupt controller

- #interrupt-cells : Specifies the number of cells needed to encode an

  interrupt source. The type shall be a <u32> and the value shall be 1.

- reg: physical base address and size of the intc registers map.



Example:



	intc: interrupt-controller {

		compatible = "axis,crisv32-intc";

		reg = <0xb001c000 0x1000>;

		interrupt-controller;

		#interrupt-cells = <1>;

	};

arch/cris/Kconfig

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@@ -46,12 +46,18 @@ config CRIS 
	select ARCH_WANT_IPC_PARSE_VERSION

	select GENERIC_IRQ_SHOW

	select GENERIC_IOMAP

	select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32

	select GENERIC_CMOS_UPDATE

	select MODULES_USE_ELF_RELA

	select CLONE_BACKWARDS2

	select OLD_SIGSUSPEND

	select OLD_SIGACTION

	select ARCH_REQUIRE_GPIOLIB

	select IRQ_DOMAIN if ETRAX_ARCH_V32

	select OF if ETRAX_ARCH_V32

	select OF_EARLY_FLATTREE if ETRAX_ARCH_V32

	select CLKSRC_MMIO if ETRAX_ARCH_V32

	select GENERIC_CLOCKEVENTS if ETRAX_ARCH_V32

	select GENERIC_SCHED_CLOCK if ETRAX_ARCH_V32



config HZ

	int
@@ -61,6 +67,10 @@ config NR_CPUS 
	int

	default "1"



config BUILTIN_DTB

	string "DTB to build into the kernel image"

	depends on OF



source "init/Kconfig"



source "kernel/Kconfig.freezer"

arch/cris/Makefile

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@@ -40,6 +40,10 @@ else 
MACH :=

endif



ifneq ($(CONFIG_BUILTIN_DTB),"")

core-$(CONFIG_OF) += arch/cris/boot/dts/

endif



LD = $(CROSS_COMPILE)ld -mcrislinux



OBJCOPYFLAGS := -O binary -R .note -R .comment -S