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authorGuanXuetao <gxt@mprc.pku.edu.cn>2011-02-26 18:24:56 +0800
committerGuanXuetao <gxt@mprc.pku.edu.cn>2011-03-17 09:19:05 +0800
commit790edb61c0d87d1f1daafcaaa8f7c66b7b82bdad (patch)
treef3e3a4f1a182692dfa07e85010fca23eb951442b /arch/unicore32
parent7f509a9ef7af0d6ac852d49eb87ed2b9857821cc (diff)
unicore32 core architecture: build infrastructure
This patch implements build infrastructure. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/unicore32')
-rw-r--r--arch/unicore32/.gitignore21
-rw-r--r--arch/unicore32/Kconfig246
-rw-r--r--arch/unicore32/Kconfig.debug68
-rw-r--r--arch/unicore32/Makefile95
-rw-r--r--arch/unicore32/configs/debug_defconfig210
-rw-r--r--arch/unicore32/include/asm/Kbuild2
-rw-r--r--arch/unicore32/include/asm/linkage.h22
-rw-r--r--arch/unicore32/kernel/Makefile33
-rw-r--r--arch/unicore32/kernel/vmlinux.lds.S61
9 files changed, 758 insertions, 0 deletions
diff --git a/arch/unicore32/.gitignore b/arch/unicore32/.gitignore
new file mode 100644
index 00000000000..947e99c2a95
--- /dev/null
+++ b/arch/unicore32/.gitignore
@@ -0,0 +1,21 @@
+#
+# Generated include files
+#
+include/generated
+#
+# Generated ld script file
+#
+kernel/vmlinux.lds
+#
+# Generated images in boot
+#
+boot/Image
+boot/zImage
+boot/uImage
+#
+# Generated files in boot/compressed
+#
+boot/compressed/piggy.S
+boot/compressed/piggy.gzip
+boot/compressed/vmlinux
+boot/compressed/vmlinux.lds
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
new file mode 100644
index 00000000000..cc6a8321588
--- /dev/null
+++ b/arch/unicore32/Kconfig
@@ -0,0 +1,246 @@
+config UNICORE32
+ def_bool y
+ select HAVE_MEMBLOCK
+ select HAVE_GENERIC_DMA_COHERENT
+ select HAVE_GENERIC_HARDIRQS
+ select HAVE_DMA_ATTRS
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_BZIP2
+ select HAVE_KERNEL_LZO
+ select HAVE_KERNEL_LZMA
+ select GENERIC_FIND_FIRST_BIT
+ select GENERIC_IRQ_PROBE
+ select ARCH_WANT_FRAME_POINTERS
+ help
+ UniCore-32 is 32-bit Instruction Set Architecture,
+ including a series of low-power-consumption RISC chip
+ designs licensed by PKUnity Ltd.
+ Please see web page at <http://www.pkunity.com/>.
+
+config HAVE_PWM
+ bool
+
+config GENERIC_GPIO
+ def_bool y
+
+config GENERIC_CLOCKEVENTS
+ bool
+
+config GENERIC_CSUM
+ def_bool y
+
+config NO_IOPORT
+ bool
+
+config STACKTRACE_SUPPORT
+ def_bool y
+
+config HAVE_LATENCYTOP_SUPPORT
+ def_bool y
+
+config LOCKDEP_SUPPORT
+ def_bool y
+
+config RWSEM_GENERIC_SPINLOCK
+ def_bool y
+
+config RWSEM_XCHGADD_ALGORITHM
+ bool
+
+config ARCH_HAS_ILOG2_U32
+ bool
+
+config ARCH_HAS_ILOG2_U64
+ bool
+
+config ARCH_HAS_CPUFREQ
+ bool
+
+config GENERIC_HWEIGHT
+ def_bool y
+
+config GENERIC_CALIBRATE_DELAY
+ def_bool y
+
+config ARCH_MAY_HAVE_PC_FDC
+ bool
+
+config NEED_DMA_MAP_STATE
+ def_bool y
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+menu "System Type"
+
+config MMU
+ def_bool y
+
+config ARCH_FPGA
+ bool
+
+config ARCH_PUV3
+ def_bool y
+ select CPU_UCV2
+ select GENERIC_CLOCKEVENTS
+ select HAVE_CLK
+ select ARCH_REQUIRE_GPIOLIB
+ select ARCH_HAS_CPUFREQ
+
+# CONFIGs for ARCH_PUV3
+
+if ARCH_PUV3
+
+choice
+ prompt "Board Selection"
+ default PUV3_DB0913
+
+config PUV3_FPGA_DLX200
+ select ARCH_FPGA
+ bool "FPGA board"
+
+config PUV3_DB0913
+ bool "DEBUG board (0913)"
+
+config PUV3_NB0916
+ bool "NetBook board (0916)"
+ select HAVE_PWM
+
+config PUV3_SMW0919
+ bool "Security Mini-Workstation board (0919)"
+
+endchoice
+
+config PUV3_PM
+ def_bool y if !ARCH_FPGA
+
+endif
+
+source "arch/unicore32/mm/Kconfig"
+
+comment "Floating poing support"
+
+config UNICORE_FPU_F64
+ def_bool y if !ARCH_FPGA
+
+endmenu
+
+menu "Bus support"
+
+config PCI
+ bool "PCI Support"
+ help
+ Find out whether you have a PCI motherboard. PCI is the name of a
+ bus system, i.e. the way the CPU talks to the other stuff inside
+ your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
+ VESA. If you have PCI, say Y, otherwise N.
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+endmenu
+
+menu "Kernel Features"
+
+source "kernel/time/Kconfig"
+
+source "kernel/Kconfig.preempt"
+
+source "kernel/Kconfig.hz"
+
+source "mm/Kconfig"
+
+config LEDS
+ def_bool y
+ depends on GENERIC_GPIO
+
+config ALIGNMENT_TRAP
+ def_bool y
+ help
+ Unicore processors can not fetch/store information which is not
+ naturally aligned on the bus, i.e., a 4 byte fetch must start at an
+ address divisible by 4. On 32-bit Unicore processors, these non-aligned
+ fetch/store instructions will be emulated in software if you say
+ here, which has a severe performance impact. This is necessary for
+ correct operation of some network protocols. With an IP-only
+ configuration it is safe to say N, otherwise say Y.
+
+endmenu
+
+menu "Boot options"
+
+config CMDLINE
+ string "Default kernel command string"
+ default ""
+
+config CMDLINE_FORCE
+ bool "Always use the default kernel command string"
+ depends on CMDLINE != ""
+ help
+ Always use the default kernel command string, even if the boot
+ loader passes other arguments to the kernel.
+ This is useful if you cannot or don't want to change the
+ command-line options your boot loader passes to the kernel.
+
+ If unsure, say N.
+
+endmenu
+
+menu "Userspace binary formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+menu "Power management options"
+
+source "kernel/power/Kconfig"
+
+if ARCH_HAS_CPUFREQ
+source "drivers/cpufreq/Kconfig"
+endif
+
+config ARCH_SUSPEND_POSSIBLE
+ def_bool y if !ARCH_FPGA
+
+config ARCH_HIBERNATION_POSSIBLE
+ def_bool y if !ARCH_FPGA
+
+endmenu
+
+source "net/Kconfig"
+
+if ARCH_PUV3
+
+config PUV3_GPIO
+ bool
+ depends on !ARCH_FPGA
+ select GENERIC_GPIO
+ select GPIO_SYSFS if EXPERIMENTAL
+ default y
+
+config PUV3_PWM
+ tristate
+ default BACKLIGHT_PWM
+ help
+ Enable support for NB0916 PWM controllers
+
+config PUV3_RTC
+ tristate "PKUnity v3 RTC Support"
+ depends on !ARCH_FPGA
+
+endif
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/unicore32/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
diff --git a/arch/unicore32/Kconfig.debug b/arch/unicore32/Kconfig.debug
new file mode 100644
index 00000000000..3140151ede4
--- /dev/null
+++ b/arch/unicore32/Kconfig.debug
@@ -0,0 +1,68 @@
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config STRICT_DEVMEM
+ bool "Filter access to /dev/mem"
+ depends on MMU
+ ---help---
+ If this option is disabled, you allow userspace (root) access to all
+ of memory, including kernel and userspace memory. Accidental
+ access to this is obviously disastrous, but specific access can
+ be used by people debugging the kernel.
+
+ If this option is switched on, the /dev/mem file only allows
+ userspace access to memory mapped peripherals.
+
+ If in doubt, say Y.
+
+config EARLY_PRINTK
+ def_bool DEBUG_OCD
+ help
+ Write kernel log output directly into the ocd or to a serial port.
+
+ 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 and doesn't cooperate
+ with klogd/syslogd or the X server. You should normally N here,
+ unless you want to debug such a crash.
+
+config DEBUG_STACK_USAGE
+ bool "Enable stack utilization instrumentation"
+ depends on DEBUG_KERNEL
+ help
+ Enables the display of the minimum amount of free stack which each
+ task has ever had available in the sysrq-T output.
+
+# These options are only for real kernel hackers who want to get their hands dirty.
+config DEBUG_LL
+ bool "Kernel low-level debugging functions"
+ depends on DEBUG_KERNEL
+ help
+ Say Y here to include definitions of printascii, printch, printhex
+ in the kernel. This is helpful if you are debugging code that
+ executes before the console is initialized.
+
+config DEBUG_OCD
+ bool "Kernel low-level debugging via On-Chip-Debugger"
+ depends on DEBUG_LL
+ default y
+ help
+ Say Y here if you want the debug print routines to direct their
+ output to the UniCore On-Chip-Debugger channel using CP #1.
+
+config DEBUG_OCD_BREAKPOINT
+ bool "Breakpoint support via On-Chip-Debugger"
+ depends on DEBUG_OCD
+
+config DEBUG_UART
+ int "Kernel low-level debugging messages via serial port"
+ depends on DEBUG_LL
+ range 0 1
+ default "0"
+ help
+ Choice for UART for kernel low-level using PKUnity UARTS,
+ should be between zero and one. The port must have been
+ initialised by the boot-loader before use.
+
+endmenu
diff --git a/arch/unicore32/Makefile b/arch/unicore32/Makefile
new file mode 100644
index 00000000000..e08d6d370a8
--- /dev/null
+++ b/arch/unicore32/Makefile
@@ -0,0 +1,95 @@
+#
+# arch/unicore32/Makefile
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies.
+#
+# 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) 2002~2010 by Guan Xue-tao
+#
+ifneq ($(SUBARCH),$(ARCH))
+ ifeq ($(CROSS_COMPILE),)
+ CROSS_COMPILE := $(call cc-cross-prefix, unicore32-linux-)
+ endif
+endif
+
+LDFLAGS_vmlinux := -p --no-undefined -X
+
+OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment -S
+
+# Never generate .eh_frame
+KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
+
+# Never use hard float in kernel
+KBUILD_CFLAGS += -msoft-float
+
+ifeq ($(CONFIG_FRAME_POINTER),y)
+KBUILD_CFLAGS += -mno-sched-prolog
+endif
+
+CHECKFLAGS += -D__unicore32__
+
+head-y := arch/unicore32/kernel/head.o
+head-y += arch/unicore32/kernel/init_task.o
+
+core-y += arch/unicore32/kernel/
+core-y += arch/unicore32/mm/
+
+libs-y += arch/unicore32/lib/
+
+ASM_GENERATED_DIR := $(srctree)/arch/unicore32/include/generated
+LINUXINCLUDE += -I$(ASM_GENERATED_DIR)
+
+ASM_GENERIC_HEADERS := atomic.h auxvec.h
+ASM_GENERIC_HEADERS += bitsperlong.h bug.h bugs.h
+ASM_GENERIC_HEADERS += cputime.h current.h
+ASM_GENERIC_HEADERS += device.h div64.h
+ASM_GENERIC_HEADERS += emergency-restart.h errno.h
+ASM_GENERIC_HEADERS += fb.h fcntl.h ftrace.h
+ASM_GENERIC_HEADERS += hardirq.h hw_irq.h
+ASM_GENERIC_HEADERS += ioctl.h ioctls.h ipcbuf.h irq_regs.h
+ASM_GENERIC_HEADERS += kdebug.h kmap_types.h
+ASM_GENERIC_HEADERS += local.h
+ASM_GENERIC_HEADERS += mman.h module.h msgbuf.h
+ASM_GENERIC_HEADERS += param.h parport.h percpu.h poll.h posix_types.h
+ASM_GENERIC_HEADERS += resource.h
+ASM_GENERIC_HEADERS += scatterlist.h sections.h segment.h sembuf.h serial.h
+ASM_GENERIC_HEADERS += setup.h shmbuf.h shmparam.h
+ASM_GENERIC_HEADERS += siginfo.h signal.h sizes.h
+ASM_GENERIC_HEADERS += socket.h sockios.h stat.h statfs.h swab.h syscalls.h
+ASM_GENERIC_HEADERS += termbits.h termios.h topology.h types.h
+ASM_GENERIC_HEADERS += ucontext.h unaligned.h user.h
+ASM_GENERIC_HEADERS += vga.h
+ASM_GENERIC_HEADERS += xor.h
+
+archprepare:
+ifneq ($(ASM_GENERATED_DIR), $(wildcard $(ASM_GENERATED_DIR)))
+ $(Q)mkdir -p $(ASM_GENERATED_DIR)/asm
+ $(Q)$(foreach a, $(ASM_GENERIC_HEADERS), \
+ echo '#include <asm-generic/$a>' \
+ > $(ASM_GENERATED_DIR)/asm/$a; )
+endif
+
+boot := arch/unicore32/boot
+
+# Default target when executing plain make
+KBUILD_IMAGE := zImage
+
+all: $(KBUILD_IMAGE)
+
+zImage Image uImage: vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+MRPROPER_DIRS += $(ASM_GENERATED_DIR)
+
+archclean:
+ $(Q)$(MAKE) $(clean)=$(boot)
+
+define archhelp
+ echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
+ echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
+ echo ' uImage - U-Boot wrapped zImage'
+endef
diff --git a/arch/unicore32/configs/debug_defconfig b/arch/unicore32/configs/debug_defconfig
new file mode 100644
index 00000000000..3647f68147d
--- /dev/null
+++ b/arch/unicore32/configs/debug_defconfig
@@ -0,0 +1,210 @@
+### General setup
+CONFIG_EXPERIMENTAL=y
+CONFIG_LOCALVERSION="-debug"
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_HOTPLUG=y
+# Initial RAM filesystem and RAM disk (initramfs/initrd) support
+#CONFIG_BLK_DEV_INITRD=y
+#CONFIG_INITRAMFS_SOURCE="arch/unicore/ramfs/ramfs_config"
+
+### Enable loadable module support
+CONFIG_MODULES=n
+CONFIG_MODULE_UNLOAD=y
+
+### System Type
+CONFIG_ARCH_PUV3=y
+# Board Selection
+CONFIG_PUV3_NB0916=y
+# Processor Features
+CONFIG_CPU_DCACHE_LINE_DISABLE=y
+CONFIG_CPU_TLB_SINGLE_ENTRY_DISABLE=n
+
+### Bus support
+CONFIG_PCI=y
+CONFIG_PCI_LEGACY=n
+
+### Boot options
+# for debug, adding: earlyprintk=ocd,keep initcall_debug
+# others support: test_suspend=mem root=/dev/sda
+# hibernate support: resume=/dev/sda3
+CONFIG_CMDLINE="earlyprintk=ocd,keep ignore_loglevel"
+# TODO: mem=512M video=unifb:1024x600-16@75
+# for nfs: root=/dev/nfs rw nfsroot=192.168.10.88:/home/udb/nfs/,rsize=1024,wsize=1024
+# ip=192.168.10.83:192.168.10.88:192.168.10.1:255.255.255.0::eth0:off
+CONFIG_CMDLINE_FORCE=y
+
+### Power management options
+CONFIG_PM=y
+CONFIG_HIBERNATION=y
+CONFIG_PM_STD_PARTITION="/dev/sda3"
+CONFIG_CPU_FREQ=n
+CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
+
+### Networking support
+CONFIG_NET=y
+# Networking options
+CONFIG_PACKET=m
+CONFIG_UNIX=m
+# TCP/IP networking
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IPV6=n
+# Wireless
+CONFIG_WIRELESS=y
+CONFIG_WIRELESS_EXT=y
+CONFIG_MAC80211=m
+
+### PKUnity SoC Features
+CONFIG_USB_WLAN_HED_AQ3=n
+CONFIG_USB_CMMB_INNOFIDEI=n
+CONFIG_I2C_BATTERY_BQ27200=n
+CONFIG_I2C_EEPROM_AT24=n
+CONFIG_LCD_BACKLIGHT=n
+
+CONFIG_PUV3_RTC=y
+CONFIG_PUV3_UMAL=y
+CONFIG_PUV3_UNIGFX=y
+CONFIG_PUV3_MUSB=n
+CONFIG_PUV3_AC97=n
+CONFIG_PUV3_NAND=n
+CONFIG_PUV3_MMC=n
+CONFIG_PUV3_UART=n
+
+### Device Drivers
+# Memory Technology Device (MTD) support
+CONFIG_MTD=m
+CONFIG_MTD_UBI=m
+CONFIG_MTD_PARTITIONS=y
+CONFIG_MTD_CHAR=m
+CONFIG_MTD_BLKDEVS=m
+# RAM/ROM/Flash chip drivers
+CONFIG_MTD_CFI=m
+CONFIG_MTD_JEDECPROBE=m
+CONFIG_MTD_CFI_AMDSTD=m
+# Mapping drivers for chip access
+CONFIG_MTD_PHYSMAP=m
+
+# Block devices
+CONFIG_BLK_DEV_LOOP=m
+
+# SCSI device support
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=m
+
+# Serial ATA (prod) and Parallel ATA (experimental) drivers
+CONFIG_ATA=y
+CONFIG_SATA_VIA=y
+
+# Network device support
+CONFIG_NETDEVICES=y
+CONFIG_NET_ETHERNET=y
+CONFIG_NETDEV_1000=y
+# Wireless LAN
+CONFIG_WLAN_80211=n
+CONFIG_RT2X00=n
+CONFIG_RT73USB=n
+
+# Input device support
+CONFIG_INPUT_EVDEV=m
+# Keyboards
+CONFIG_KEYBOARD_GPIO=m
+
+# Hardware Monitoring support
+#CONFIG_SENSORS_LM75=m
+# Generic Thermal sysfs driver
+#CONFIG_THERMAL=m
+#CONFIG_THERMAL_HWMON=y
+
+# Multimedia support
+CONFIG_MEDIA_SUPPORT=n
+CONFIG_VIDEO_DEV=n
+CONFIG_USB_VIDEO_CLASS=n
+
+# Graphics support
+# Console display driver support
+CONFIG_VGA_CONSOLE=n
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
+# Bootup logo
+CONFIG_LOGO=n
+
+# Sound card support
+CONFIG_SOUND=m
+# Advanced Linux Sound Architecture
+CONFIG_SND=m
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+
+# USB support
+CONFIG_USB_ARCH_HAS_HCD=n
+CONFIG_USB=n
+CONFIG_USB_DEVICEFS=n
+CONFIG_USB_PRINTER=n
+CONFIG_USB_STORAGE=n
+# Inventra Highspeed Dual Role Controller
+CONFIG_USB_MUSB_HDRC=n
+
+# LED Support
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+# LED Triggers
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+
+# Real Time Clock
+CONFIG_RTC_LIB=m
+CONFIG_RTC_CLASS=m
+
+### File systems
+CONFIG_EXT2_FS=m
+CONFIG_EXT3_FS=y
+CONFIG_EXT4_FS=y
+CONFIG_FUSE_FS=m
+# CD-ROM/DVD Filesystems
+CONFIG_ISO9660_FS=m
+CONFIG_JOLIET=y
+CONFIG_UDF_FS=m
+# DOS/FAT/NT Filesystems
+CONFIG_VFAT_FS=m
+# Pseudo filesystems
+CONFIG_PROC_FS=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# Miscellaneous filesystems
+CONFIG_MISC_FILESYSTEMS=y
+CONFIG_JFFS2_FS=m
+CONFIG_UBIFS_FS=m
+# Network File Systems
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_ROOT_NFS=y
+# Partition Types
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_MSDOS_PARTITION=y
+# Native language support
+CONFIG_NLS=y
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_936=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_UTF8=m
+
+### Kernel hacking
+CONFIG_FRAME_WARN=8096
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_PROVE_LOCKING=n
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_FRAME_POINTER=y
+CONFIG_DEBUG_LL=y
+
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
new file mode 100644
index 00000000000..b200fdaca44
--- /dev/null
+++ b/arch/unicore32/include/asm/Kbuild
@@ -0,0 +1,2 @@
+include include/asm-generic/Kbuild.asm
+
diff --git a/arch/unicore32/include/asm/linkage.h b/arch/unicore32/include/asm/linkage.h
new file mode 100644
index 00000000000..d1618bd35b6
--- /dev/null
+++ b/arch/unicore32/include/asm/linkage.h
@@ -0,0 +1,22 @@
+/*
+ * linux/arch/unicore32/include/asm/linkage.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __UNICORE_LINKAGE_H__
+#define __UNICORE_LINKAGE_H__
+
+#define __ALIGN .align 0
+#define __ALIGN_STR ".align 0"
+
+#define ENDPROC(name) \
+ .type name, %function; \
+ END(name)
+
+#endif
diff --git a/arch/unicore32/kernel/Makefile b/arch/unicore32/kernel/Makefile
new file mode 100644
index 00000000000..ec23a2fb2f5
--- /dev/null
+++ b/arch/unicore32/kernel/Makefile
@@ -0,0 +1,33 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+obj-y := dma.o elf.o entry.o process.o ptrace.o
+obj-y += setup.o signal.o sys.o stacktrace.o traps.o
+
+obj-$(CONFIG_MODULES) += ksyms.o module.o
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+
+obj-$(CONFIG_CPU_FREQ) += cpu-ucv2.o
+obj-$(CONFIG_UNICORE_FPU_F64) += fpu-ucf64.o
+
+# obj-y for architecture PKUnity v3
+obj-$(CONFIG_ARCH_PUV3) += clock.o irq.o time.o
+
+obj-$(CONFIG_PUV3_GPIO) += gpio.o
+obj-$(CONFIG_PUV3_RTC) += rtc.o
+obj-$(CONFIG_PUV3_PWM) += pwm.o
+obj-$(CONFIG_PUV3_PM) += pm.o sleep.o
+obj-$(CONFIG_HIBERNATION) += hibernate.o hibernate_asm.o
+
+obj-$(CONFIG_PCI) += pci.o
+
+# obj-y for specific machines
+obj-$(CONFIG_ARCH_PUV3) += puv3-core.o
+obj-$(CONFIG_PUV3_NB0916) += puv3-nb0916.o
+
+head-y := head.o
+obj-$(CONFIG_DEBUG_LL) += debug.o
+
+extra-y := $(head-y) init_task.o vmlinux.lds
diff --git a/arch/unicore32/kernel/vmlinux.lds.S b/arch/unicore32/kernel/vmlinux.lds.S
new file mode 100644
index 00000000000..0b4eb89729e
--- /dev/null
+++ b/arch/unicore32/kernel/vmlinux.lds.S
@@ -0,0 +1,61 @@
+/*
+ * linux/arch/unicore32/kernel/vmlinux.lds.S
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/thread_info.h>
+#include <asm/memory.h>
+#include <asm/page.h>
+
+OUTPUT_ARCH(unicore32)
+ENTRY(stext)
+
+jiffies = jiffies_64;
+
+SECTIONS
+{
+ . = PAGE_OFFSET + KERNEL_IMAGE_START;
+
+ _text = .;
+ __init_begin = .;
+ HEAD_TEXT_SECTION
+ INIT_TEXT_SECTION(PAGE_SIZE)
+ INIT_DATA_SECTION(16)
+ PERCPU(PAGE_SIZE)
+ __init_end = .;
+
+ _stext = .;
+ .text : { /* Real text segment */
+ TEXT_TEXT
+ SCHED_TEXT
+ LOCK_TEXT
+
+ *(.fixup)
+ *(.gnu.warning)
+ }
+ _etext = .;
+
+ _sdata = .;
+ RO_DATA_SECTION(PAGE_SIZE)
+ RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
+ _edata = .;
+
+ EXCEPTION_TABLE(32)
+ NOTES
+
+ BSS_SECTION(0, 0, 0)
+ _end = .;
+
+ STABS_DEBUG
+ DWARF_DEBUG
+
+ DISCARDS /* Exit code and data */
+}