Merge branch 'for-upstream' of git://openrisc.net/jonas/linux

* 'for-upstream' of git://openrisc.net/jonas/linux: (24 commits)
  OpenRISC: Add MAINTAINERS entry
  OpenRISC: Miscellaneous
  OpenRISC: Library routines
  OpenRISC: Headers
  OpenRISC: Traps
  OpenRISC: Module support
  OpenRISC: GPIO
  OpenRISC: Scheduling/Process management
  OpenRISC: Idle/Power management
  OpenRISC: System calls
  OpenRISC: IRQ
  OpenRISC: Timekeeping
  OpenRISC: DMA
  OpenRISC: PTrace
  OpenRISC: Build infrastructure
  OpenRISC: Signal handling
  OpenRISC: Memory management
  OpenRISC: Device tree
  OpenRISC: Boot code
  iomap: make IOPORT/PCI mapping functions conditional
  ...

MAINTAINERS

@@ -4688,6 +4688,14 @@ F:	drivers/of
 F:	include/linux/of*.h
 K:	of_get_property
 
+OPENRISC ARCHITECTURE
+M:	Jonas Bonn <[email protected]>
+W:	http://openrisc.net
+L:	[email protected]
+S:	Maintained
+T:	git git://openrisc.net/~jonas/linux
+F:	arch/openrisc
+
 OPL4 DRIVER
 M:	Clemens Ladisch <[email protected]>
 L:	[email protected] (moderated for non-subscribers)

arch/avr32/include/asm/delay.h

@@ -1,26 +1 @@
-#ifndef __ASM_AVR32_DELAY_H
-#define __ASM_AVR32_DELAY_H
-
-/*
- * Copyright (C) 1993 Linus Torvalds
- *
- * Delay routines calling functions in arch/avr32/lib/delay.c
- */
-
-extern void __bad_udelay(void);
-extern void __bad_ndelay(void);
-
-extern void __udelay(unsigned long usecs);
-extern void __ndelay(unsigned long nsecs);
-extern void __const_udelay(unsigned long xloops);
-extern void __delay(unsigned long loops);
-
-#define udelay(n) (__builtin_constant_p(n) ? \
-	((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
-	__udelay(n))
-
-#define ndelay(n) (__builtin_constant_p(n) ? \
-	((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
-	__ndelay(n))
-
-#endif /* __ASM_AVR32_DELAY_H */
+#include <asm-generic/delay.h>

arch/m32r/include/asm/delay.h

@@ -1,26 +1 @@
-#ifndef _ASM_M32R_DELAY_H
-#define _ASM_M32R_DELAY_H
-
-/*
- * Copyright (C) 1993 Linus Torvalds
- *
- * Delay routines calling functions in arch/m32r/lib/delay.c
- */
-
-extern void __bad_udelay(void);
-extern void __bad_ndelay(void);
-
-extern void __udelay(unsigned long usecs);
-extern void __ndelay(unsigned long nsecs);
-extern void __const_udelay(unsigned long xloops);
-extern void __delay(unsigned long loops);
-
-#define udelay(n) (__builtin_constant_p(n) ? \
-	((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
-	__udelay(n))
-
-#define ndelay(n) (__builtin_constant_p(n) ? \
-	((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
-	__ndelay(n))
-
-#endif /* _ASM_M32R_DELAY_H */
+#include <asm-generic/delay.h>

arch/openrisc/Kconfig

@@ -0,0 +1,207 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/config-language.txt.
+#
+
+config OPENRISC
+	def_bool y
+	select OF
+	select OF_EARLY_FLATTREE
+	select HAVE_MEMBLOCK
+	select ARCH_WANT_OPTIONAL_GPIOLIB
+        select HAVE_ARCH_TRACEHOOK
+	select HAVE_GENERIC_HARDIRQS
+	select GENERIC_IRQ_CHIP
+	select GENERIC_IRQ_PROBE
+	select GENERIC_IRQ_SHOW
+	select GENERIC_IOMAP
+
+config MMU
+	def_bool y
+
+config WISHBONE_BUS_BIG_ENDIAN
+	def_bool y
+
+config SYMBOL_PREFIX
+        string
+        default ""
+
+config HAVE_DMA_ATTRS
+	def_bool y
+
+config UID16
+	def_bool y
+
+config RWSEM_GENERIC_SPINLOCK
+	def_bool y
+
+config RWSEM_XCHGADD_ALGORITHM
+	def_bool n
+
+config GENERIC_HWEIGHT
+	def_bool y
+
+config GENERIC_IOMAP
+	def_bool y
+
+config NO_IOPORT
+	def_bool y
+
+config GENERIC_GPIO
+	def_bool y
+
+config GENERIC_CLOCKEVENTS
+	def_bool y
+
+config TRACE_IRQFLAGS_SUPPORT
+        def_bool y
+
+# For now, use generic checksum functions
+#These can be reimplemented in assembly later if so inclined
+config GENERIC_CSUM
+        def_bool y
+
+config GENERIC_FIND_NEXT_BIT
+	def_bool y
+
+source "init/Kconfig"
+
+
+menu "Processor type and features"
+
+choice
+	prompt "Subarchitecture"
+	default OR1K_1200
+
+config OR1K_1200
+	bool "OR1200"
+	help
+	  Generic OpenRISC 1200 architecture
+
+endchoice
+
+config OPENRISC_BUILTIN_DTB
+        string "Builtin DTB"
+        default ""
+
+menu "Class II Instructions"
+
+config OPENRISC_HAVE_INST_FF1
+	bool "Have instruction l.ff1"
+	default y
+	help
+	  Select this if your implementation has the Class II instruction l.ff1
+
+config OPENRISC_HAVE_INST_FL1
+	bool "Have instruction l.fl1"
+	default y
+	help
+	  Select this if your implementation has the Class II instruction l.fl1
+
+config OPENRISC_HAVE_INST_MUL
+	bool "Have instruction l.mul for hardware multiply"
+	default y
+	help
+	  Select this if your implementation has a hardware multiply instruction
+
+config OPENRISC_HAVE_INST_DIV
+	bool "Have instruction l.div for hardware divide"
+	default y
+	help
+	  Select this if your implementation has a hardware divide instruction
+endmenu
+
+
+source "kernel/time/Kconfig"
+source kernel/Kconfig.hz
+source kernel/Kconfig.preempt
+source "mm/Kconfig"
+
+config OPENRISC_NO_SPR_SR_DSX
+	bool "use SPR_SR_DSX software emulation" if OR1K_1200
+	default y
+	help
+	  SPR_SR_DSX bit is status register bit indicating whether
+	  the last exception has happened in delay slot.
+
+	  OpenRISC architecture makes it optional to have it implemented
+	  in hardware and the OR1200 does not have it.
+
+	  Say N here if you know that your OpenRISC processor has
+	  SPR_SR_DSX bit implemented. Say Y if you are unsure.
+
+config CMDLINE
+        string "Default kernel command string"
+        default ""
+        help
+          On some architectures there is currently no way for the boot loader
+          to pass arguments to the kernel. For these architectures, you should
+          supply some command-line options at build time by entering them
+          here.
+
+menu "Debugging options"
+
+config DEBUG_STACKOVERFLOW
+	bool "Check for kernel stack overflow"
+	default y
+	help
+	  Make extra checks for space avaliable on stack in some
+          critical functions. This will cause kernel to run a bit slower,
+	  but will catch most of kernel stack overruns and exit gracefuly.
+
+	  Say Y if you are unsure.
+
+config JUMP_UPON_UNHANDLED_EXCEPTION
+	bool "Try to die gracefully"
+	default y
+	help
+	  Now this puts kernel into infinite loop after first oops. Till
+	  your kernel crashes this doesn't have any influence.
+
+	  Say Y if you are unsure.
+
+config OPENRISC_EXCEPTION_DEBUG
+	bool "Print processor state at each exception"
+	default n
+	help
+	  This option will make your kernel unusable for all but kernel
+	  debugging.
+
+	  Say N if you are unsure.
+
+config OPENRISC_ESR_EXCEPTION_BUG_CHECK
+	bool "Check for possible ESR exception bug"
+	default n
+	help
+	  This option enables some checks that might expose some problems
+          in kernel.
+
+	  Say N if you are unsure.
+
+endmenu
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
+
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+endmenu

arch/openrisc/Makefile

@@ -0,0 +1,55 @@
+# BK Id: %F% %I% %G% %U% %#%
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies. Remember to do have actions
+# for "archclean" and "archdep" for cleaning up and making dependencies for
+# this architecture
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+# Modifications for the OpenRISC architecture:
+# Copyright (C) 2003 Matjaz Breskvar <[email protected]>
+# Copyright (C) 2010-2011 Jonas Bonn <[email protected]>
+#
+# Based on:
+# arch/i386/Makefile
+
+KBUILD_DEFCONFIG := or1ksim_defconfig
+
+LDFLAGS         :=
+OBJCOPYFLAGS    := -O binary -R .note -R .comment -S
+LDFLAGS_vmlinux :=
+LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+
+KBUILD_CFLAGS	+= -pipe -ffixed-r10
+
+ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
+	KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
+else
+	KBUILD_CFLAGS += $(call cc-option,-msoft-mul)
+endif
+
+ifeq ($(CONFIG_OPENRISC_HAVE_INST_DIV),y)
+	KBUILD_CFLAGS += $(call cc-option,-mhard-div)
+else
+	KBUILD_CFLAGS += $(call cc-option,-msoft-div)
+endif
+
+head-y 		:= arch/openrisc/kernel/head.o arch/openrisc/kernel/init_task.o
+
+core-y		+= arch/openrisc/lib/ \
+		   arch/openrisc/kernel/ \
+		   arch/openrisc/mm/
+libs-y		+= $(LIBGCC)
+
+ifneq '$(CONFIG_OPENRISC_BUILTIN_DTB)' '""'
+BUILTIN_DTB := y
+else
+BUILTIN_DTB := n
+endif
+core-$(BUILTIN_DTB) += arch/openrisc/boot/
+
+all: vmlinux