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>

9 files changed, 758 insertions, 0 deletions

diff --git a/arch/unicore32/.gitignore b/arch/unicore32/.gitignore
new file mode 100644
index 000000000000..947e99c2a957
--- /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 000000000000..cc6a83215881
--- /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 000000000000..3140151ede45
--- /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 000000000000..e08d6d370a8a
--- /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 000000000000..3647f68147da
--- /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 000000000000..b200fdaca44d
--- /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 000000000000..d1618bd35b67
--- /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 000000000000..ec23a2fb2f50
--- /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 000000000000..0b4eb89729e7
--- /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 */
+}