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Date: Sun, 26 Dec 2010 02:41:58 +0800
From: "Guan Xuetao" <guanxuetao@...c.pku.edu.cn>
To: <linux-arch@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Cc: 雪涛 管 <guanxuetao@...c.pku.edu.cn>
Subject: [PATCHv1 01/12] unicore32 core architecture: build infrastructure
From: Guan Xuetao <guanxuetao@...c.pku.edu.cn>
This patch implements build infrastructure.
Signed-off-by: Guan Xuetao <guanxuetao@...c.pku.edu.cn>
---
arch/unicore32/.gitignore | 70 +++++++++
arch/unicore32/Kconfig | 258 +++++++++++++++++++++++++++++++
arch/unicore32/Kconfig.debug | 86 ++++++++++
arch/unicore32/Makefile | 153 ++++++++++++++++++
arch/unicore32/configs/debug_defconfig | 211 +++++++++++++++++++++++++
arch/unicore32/configs/nb0916_defconfig | 203 ++++++++++++++++++++++++
arch/unicore32/include/asm/Kbuild | 4 +
arch/unicore32/include/asm/linkage.h | 22 +++
arch/unicore32/kernel/Makefile | 34 ++++
arch/unicore32/kernel/asm-offsets.c | 112 +++++++++++++
arch/unicore32/kernel/ksyms.c | 87 +++++++++++
arch/unicore32/kernel/module.c | 152 ++++++++++++++++++
arch/unicore32/kernel/vmlinux.lds.S | 120 ++++++++++++++
firmware/Makefile | 2 +-
14 files changed, 1513 insertions(+), 1 deletions(-)
diff --git a/arch/unicore32/.gitignore b/arch/unicore32/.gitignore
new file mode 100644
index 0000000..f0fc866
--- /dev/null
+++ b/arch/unicore32/.gitignore
@@ -0,0 +1,70 @@
+#
+# Generated include files
+#
+include/asm/atomic.h
+include/asm/auxvec.h
+include/asm/bitsperlong.h
+include/asm/bug.h
+include/asm/bugs.h
+include/asm/cputime.h
+include/asm/current.h
+include/asm/device.h
+include/asm/emergency-restart.h
+include/asm/errno.h
+include/asm/fb.h
+include/asm/fcntl.h
+include/asm/hardirq.h
+include/asm/hw_irq.h
+include/asm/ioctl.h
+include/asm/ioctls.h
+include/asm/ipcbuf.h
+include/asm/irq_regs.h
+include/asm/kdebug.h
+include/asm/kmap_types.h
+include/asm/local.h
+include/asm/mman.h
+include/asm/module.h
+include/asm/msgbuf.h
+include/asm/param.h
+include/asm/parport.h
+include/asm/percpu.h
+include/asm/poll.h
+include/asm/posix_types.h
+include/asm/resource.h
+include/asm/scatterlist.h
+include/asm/sections.h
+include/asm/sembuf.h
+include/asm/serial.h
+include/asm/shmbuf.h
+include/asm/shmparam.h
+include/asm/siginfo.h
+include/asm/signal.h
+include/asm/socket.h
+include/asm/sockios.h
+include/asm/statfs.h
+include/asm/termbits.h
+include/asm/termios.h
+include/asm/topology.h
+include/asm/types.h
+include/asm/ucontext.h
+include/asm/unaligned.h
+include/asm/user.h
+include/asm/vga.h
+include/asm/xor.h
+#
+# 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 0000000..da59420
--- /dev/null
+++ b/arch/unicore32/Kconfig
@@ -0,0 +1,258 @@
+config UNICORE32
+ bool
+ default y
+ select HAVE_MEMBLOCK
+ select HAVE_GENERIC_DMA_COHERENT
+ 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 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 NO_IOPORT
+ bool
+
+config GENERIC_HARDIRQS
+ bool
+ default y
+
+config STACKTRACE_SUPPORT
+ bool
+ default y
+
+config HAVE_LATENCYTOP_SUPPORT
+ bool
+ default y
+
+config LOCKDEP_SUPPORT
+ bool
+ default y
+
+config GENERIC_IRQ_PROBE
+ bool
+ default y
+
+config RWSEM_GENERIC_SPINLOCK
+ bool
+ default 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
+ bool
+ default y
+
+config GENERIC_CALIBRATE_DELAY
+ bool
+ default y
+
+config ARCH_MAY_HAVE_PC_FDC
+ bool
+
+config NEED_DMA_MAP_STATE
+ def_bool y
+
+config REALMODE
+ bool
+
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ def_bool y
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+menu "System Type"
+
+config MMU
+ def_bool y
+
+config ARCH_FPGA
+ bool
+
+choice
+ prompt "PKUnity system type"
+ default ARCH_PUV3
+
+ config ARCH_PUV3
+ bool "PKUnity v3 (SuperK)"
+ select CPU_UCV2
+ select GENERIC_CLOCKEVENTS
+ select HAVE_CLK
+ select ARCH_REQUIRE_GPIOLIB
+ select ARCH_HAS_CPUFREQ
+
+endchoice
+
+# 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
+ bool
+ depends on !ARCH_FPGA
+ default y
+
+endif
+
+source "arch/unicore32/mm/Kconfig"
+
+comment "Floating poing support"
+
+config UNICORE_FPU_F64
+ bool "UniCore-FPU (F64) support"
+ depends on !ARCH_FPGA
+ default y
+
+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
+ bool "CPU heartbeat LEDs"
+ depends on GENERIC_GPIO
+ default y
+
+config ALIGNMENT_TRAP
+ bool
+ default 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
+ bool
+ default y if !ARCH_FPGA
+
+endmenu
+
+source "net/Kconfig"
+
+if ARCH_PUV3
+source "drivers/staging/puv3/Kconfig"
+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 0000000..e59ab3c
--- /dev/null
+++ b/arch/unicore32/Kconfig.debug
@@ -0,0 +1,86 @@
+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
+ bool "Early printk"
+ default 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_USER
+ bool "Verbose user fault messages"
+ help
+ When a user program crashes due to an exception, the kernel can
+ print a brief message explaining what the problem was. This is
+ sometimes helpful for debugging but serves no purpose on a
+ production system. Most people should say N here.
+
+ In addition, you need to pass user_debug=N on the kernel command
+ line to enable this feature. N consists of the sum of:
+
+ 1 - undefined instruction events
+ 2 - system calls
+ 4 - invalid data aborts
+ 8 - SIGSEGV faults
+ 16 - SIGBUS faults
+
+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 0000000..e82e7a3
--- /dev/null
+++ b/arch/unicore32/Makefile
@@ -0,0 +1,153 @@
+#
+# 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
+LOCALVERSION := -uc32
+
+CROSS_COMPILE := /usr/unicore/gnu-toolchain-unicore/uc4/bin/unicore32-linux-
+
+INSTALL_MOD_PATH := $(obj)/usr
+
+LDFLAGS_vmlinux :=-p --no-undefined -X
+
+OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
+GZFLAGS :=-9
+#KBUILD_CFLAGS +=-pipe
+# Explicitly specifiy 32-bit UniCore ISA:
+KBUILD_CFLAGS +=$(call cc-option,-municore,)
+
+# Never generate .eh_frame
+KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
+
+ifeq ($(CONFIG_FRAME_POINTER),y)
+KBUILD_CFLAGS +=-fno-omit-frame-pointer -mno-sched-prolog
+endif
+
+KBUILD_CPPFLAGS += -mlittle-endian
+AS += -EL
+LD += -EL
+
+comma = ,
+
+# Need -Uunicore32 for gcc < 3.x
+# delete -mstructure-size-boundary=32, and default being 8
+# delete -funsigned-char, and default being signed-char
+KBUILD_CFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uunicore32
+KBUILD_AFLAGS +=-msoft-float
+
+CHECKFLAGS += -D__unicore32__
+
+#Default value
+head-y := arch/unicore32/kernel/head.o arch/unicore32/kernel/init_task.o
+textofs-y := 0x00408000
+
+# The byte offset of the kernel image in RAM from the start of RAM.
+TEXT_OFFSET := $(textofs-y)
+
+export TEXT_OFFSET GZFLAGS
+
+core-y += arch/unicore32/kernel/ arch/unicore32/mm/
+core-$(CONFIG_UNICORE_FPU_F64) += arch/unicore32/uc-f64/
+
+drivers-$(CONFIG_ARCH_PUV3) += drivers/staging/puv3/
+
+libs-y += arch/unicore32/lib/
+libs-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libc.a)
+libs-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a)
+
+# Default target when executing plain make
+KBUILD_IMAGE := zImage
+
+all: $(KBUILD_IMAGE)
+
+boot := arch/unicore32/boot
+
+ASM_GENERIC_HEADERS := arch/unicore32/include/asm/atomic.h \
+ arch/unicore32/include/asm/auxvec.h \
+ arch/unicore32/include/asm/bitsperlong.h \
+ arch/unicore32/include/asm/bug.h \
+ arch/unicore32/include/asm/bugs.h \
+ arch/unicore32/include/asm/cputime.h \
+ arch/unicore32/include/asm/current.h \
+ arch/unicore32/include/asm/device.h \
+ arch/unicore32/include/asm/emergency-restart.h \
+ arch/unicore32/include/asm/errno.h \
+ arch/unicore32/include/asm/fb.h \
+ arch/unicore32/include/asm/fcntl.h \
+ arch/unicore32/include/asm/hardirq.h \
+ arch/unicore32/include/asm/hw_irq.h \
+ arch/unicore32/include/asm/ioctl.h \
+ arch/unicore32/include/asm/ioctls.h \
+ arch/unicore32/include/asm/ipcbuf.h \
+ arch/unicore32/include/asm/irq_regs.h \
+ arch/unicore32/include/asm/kdebug.h \
+ arch/unicore32/include/asm/kmap_types.h \
+ arch/unicore32/include/asm/local.h \
+ arch/unicore32/include/asm/mman.h \
+ arch/unicore32/include/asm/module.h \
+ arch/unicore32/include/asm/msgbuf.h \
+ arch/unicore32/include/asm/param.h \
+ arch/unicore32/include/asm/parport.h \
+ arch/unicore32/include/asm/percpu.h \
+ arch/unicore32/include/asm/poll.h \
+ arch/unicore32/include/asm/posix_types.h \
+ arch/unicore32/include/asm/resource.h \
+ arch/unicore32/include/asm/scatterlist.h \
+ arch/unicore32/include/asm/sections.h \
+ arch/unicore32/include/asm/sembuf.h \
+ arch/unicore32/include/asm/serial.h \
+ arch/unicore32/include/asm/shmbuf.h \
+ arch/unicore32/include/asm/shmparam.h \
+ arch/unicore32/include/asm/siginfo.h \
+ arch/unicore32/include/asm/signal.h \
+ arch/unicore32/include/asm/socket.h \
+ arch/unicore32/include/asm/sockios.h \
+ arch/unicore32/include/asm/statfs.h \
+ arch/unicore32/include/asm/termbits.h \
+ arch/unicore32/include/asm/termios.h \
+ arch/unicore32/include/asm/topology.h \
+ arch/unicore32/include/asm/types.h \
+ arch/unicore32/include/asm/ucontext.h \
+ arch/unicore32/include/asm/unaligned.h \
+ arch/unicore32/include/asm/user.h \
+ arch/unicore32/include/asm/vga.h \
+ arch/unicore32/include/asm/xor.h
+
+%.h:
+ $(Q)echo '#include <asm-generic/$(notdir $@)>' > $@
+
+archprepare: $(ASM_GENERIC_HEADERS)
+
+# Convert bzImage to zImage
+bzImage: zImage
+
+zImage Image uImage: vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
+
+zinstall install: vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
+
+CLEAN_DIRS += $(INSTALL_MOD_PATH)/lib
+CLEAN_FILES += $(ASM_GENERIC_HEADERS)
+
+# We use MRPROPER_FILES and CLEAN_FILES now
+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'
+ echo ' install - Install uncompressed kernel'
+ echo ' zinstall - Install compressed kernel'
+ echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
+ echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
+ echo ' install to $$(INSTALL_PATH) and run lilo'
+endef
diff --git a/arch/unicore32/configs/debug_defconfig b/arch/unicore32/configs/debug_defconfig
new file mode 100644
index 0000000..97f0b2b
--- /dev/null
+++ b/arch/unicore32/configs/debug_defconfig
@@ -0,0 +1,211 @@
+### 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_USER=y
+CONFIG_DEBUG_LL=y
+
diff --git a/arch/unicore32/configs/nb0916_defconfig b/arch/unicore32/configs/nb0916_defconfig
new file mode 100644
index 0000000..203bf87
--- /dev/null
+++ b/arch/unicore32/configs/nb0916_defconfig
@@ -0,0 +1,203 @@
+### General setup
+CONFIG_EXPERIMENTAL=y
+CONFIG_LOCALVERSION="-nb0916"
+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=y
+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=""
+# CONFIG_CMDLINE_FORCE is not set
+
+### 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=m
+CONFIG_I2C_EEPROM_AT24=m
+CONFIG_LCD_BACKLIGHT=m
+
+CONFIG_PUV3_RTC=m
+CONFIG_PUV3_UMAL=m
+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=y
+CONFIG_RT2X00=m
+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=m
+CONFIG_VIDEO_DEV=m
+CONFIG_USB_VIDEO_CLASS=m
+
+# 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=y
+CONFIG_USB=y
+CONFIG_USB_DEVICEFS=y
+CONFIG_USB_PRINTER=m
+CONFIG_USB_STORAGE=m
+# Inventra Highspeed Dual Role Controller
+CONFIG_USB_MUSB_HDRC=m
+
+# 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_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=n
+CONFIG_DEBUG_USER=n
+
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
new file mode 100644
index 0000000..c43b56c
--- /dev/null
+++ b/arch/unicore32/include/asm/Kbuild
@@ -0,0 +1,4 @@
+include include/asm-generic/Kbuild.asm
+
+header-y += hwcap.h
+
diff --git a/arch/unicore32/include/asm/linkage.h b/arch/unicore32/include/asm/linkage.h
new file mode 100644
index 0000000..d1618bd
--- /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 0000000..7a1d12f
--- /dev/null
+++ b/arch/unicore32/kernel/Makefile
@@ -0,0 +1,34 @@
+#
+# Makefile for the linux kernel.
+#
+
+CPPFLAGS_vmlinux.lds := -DTEXT_OFFSET=$(TEXT_OFFSET)
+AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
+
+# Object file lists.
+
+obj-y := elf.o entry.o process.o ptrace.o setup.o signal.o \
+ sys_unicore.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-y for architecture PKUnity v3
+obj-$(CONFIG_ARCH_PUV3) += clock.o irq.o time.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
+obj-$(CONFIG_PUV3_SMW0919) += puv3-smw0919.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/asm-offsets.c b/arch/unicore32/kernel/asm-offsets.c
new file mode 100644
index 0000000..ffcbe75
--- /dev/null
+++ b/arch/unicore32/kernel/asm-offsets.c
@@ -0,0 +1,112 @@
+/*
+ * linux/arch/unicore32/kernel/asm-offsets.c
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed to extract
+ * and format the required data.
+ *
+ * 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 <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/dma-mapping.h>
+#include <linux/kbuild.h>
+#include <linux/suspend.h>
+#include <linux/thread_info.h>
+#include <asm/memory.h>
+#include <asm/suspend.h>
+
+/*
+ * GCC 3.0, 3.1: general bad code generation.
+ * GCC 3.2.0: incorrect function argument offset calculation.
+ * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
+ * (http://gcc.gnu.org/PR8896) and incorrect structure
+ * initialisation in fs/jffs2/erase.c
+ */
+#if (__GNUC__ < 4)
+#error Your compiler should upgrade to uc4
+#error Known good compilers: 4.2.2
+#endif
+
+int main(void)
+{
+ DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
+ BLANK();
+ DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+ DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
+ DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
+ DEFINE(TI_TASK, offsetof(struct thread_info, task));
+ DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
+ DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
+ DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context));
+ DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp));
+#ifdef CONFIG_UNICORE_FPU_F64
+ DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate));
+#endif
+ BLANK();
+ DEFINE(S_R0, offsetof(struct pt_regs, UCreg_00));
+ DEFINE(S_R1, offsetof(struct pt_regs, UCreg_01));
+ DEFINE(S_R2, offsetof(struct pt_regs, UCreg_02));
+ DEFINE(S_R3, offsetof(struct pt_regs, UCreg_03));
+ DEFINE(S_R4, offsetof(struct pt_regs, UCreg_04));
+ DEFINE(S_R5, offsetof(struct pt_regs, UCreg_05));
+ DEFINE(S_R6, offsetof(struct pt_regs, UCreg_06));
+ DEFINE(S_R7, offsetof(struct pt_regs, UCreg_07));
+ DEFINE(S_R8, offsetof(struct pt_regs, UCreg_08));
+ DEFINE(S_R9, offsetof(struct pt_regs, UCreg_09));
+ DEFINE(S_R10, offsetof(struct pt_regs, UCreg_10));
+ DEFINE(S_R11, offsetof(struct pt_regs, UCreg_11));
+ DEFINE(S_R12, offsetof(struct pt_regs, UCreg_12));
+ DEFINE(S_R13, offsetof(struct pt_regs, UCreg_13));
+ DEFINE(S_R14, offsetof(struct pt_regs, UCreg_14));
+ DEFINE(S_R15, offsetof(struct pt_regs, UCreg_15));
+ DEFINE(S_R16, offsetof(struct pt_regs, UCreg_16));
+ DEFINE(S_R17, offsetof(struct pt_regs, UCreg_17));
+ DEFINE(S_R18, offsetof(struct pt_regs, UCreg_18));
+ DEFINE(S_R19, offsetof(struct pt_regs, UCreg_19));
+ DEFINE(S_R20, offsetof(struct pt_regs, UCreg_20));
+ DEFINE(S_R21, offsetof(struct pt_regs, UCreg_21));
+ DEFINE(S_R22, offsetof(struct pt_regs, UCreg_22));
+ DEFINE(S_R23, offsetof(struct pt_regs, UCreg_23));
+ DEFINE(S_R24, offsetof(struct pt_regs, UCreg_24));
+ DEFINE(S_R25, offsetof(struct pt_regs, UCreg_25));
+ DEFINE(S_R26, offsetof(struct pt_regs, UCreg_26));
+ DEFINE(S_FP, offsetof(struct pt_regs, UCreg_fp));
+ DEFINE(S_IP, offsetof(struct pt_regs, UCreg_ip));
+ DEFINE(S_SP, offsetof(struct pt_regs, UCreg_sp));
+ DEFINE(S_LR, offsetof(struct pt_regs, UCreg_lr));
+ DEFINE(S_PC, offsetof(struct pt_regs, UCreg_pc));
+ DEFINE(S_PSR, offsetof(struct pt_regs, UCreg_asr));
+ DEFINE(S_OLD_R0, offsetof(struct pt_regs, UCreg_ORIG_00));
+ DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
+ BLANK();
+ DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
+ DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
+ BLANK();
+ DEFINE(VM_EXEC, VM_EXEC);
+ BLANK();
+ DEFINE(PAGE_SZ, PAGE_SIZE);
+ BLANK();
+ DEFINE(SYS_ERROR0, 0x9f0000);
+ BLANK();
+ DEFINE(PBE_ADDRESS, offsetof(struct pbe, address));
+ DEFINE(PBE_ORIN_ADDRESS, offsetof(struct pbe, orig_address));
+ DEFINE(PBE_NEXT, offsetof(struct pbe, next));
+ DEFINE(SWSUSP_CPU, offsetof(struct swsusp_arch_regs, \
+ cpu_context));
+#ifdef CONFIG_UNICORE_FPU_F64
+ DEFINE(SWSUSP_FPSTATE, offsetof(struct swsusp_arch_regs, \
+ fpstate));
+#endif
+ BLANK();
+ DEFINE(DMA_BIDIRECTIONAL, DMA_BIDIRECTIONAL);
+ DEFINE(DMA_TO_DEVICE, DMA_TO_DEVICE);
+ DEFINE(DMA_FROM_DEVICE, DMA_FROM_DEVICE);
+ return 0;
+}
diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c
new file mode 100644
index 0000000..1574609
--- /dev/null
+++ b/arch/unicore32/kernel/ksyms.c
@@ -0,0 +1,87 @@
+/*
+ * linux/arch/unicore32/kernel/ksyms.c
+ *
+ * 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 <linux/module.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/cryptohash.h>
+#include <linux/delay.h>
+#include <linux/in6.h>
+#include <linux/syscalls.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#include <asm/checksum.h>
+#include <asm/system.h>
+
+
+EXPORT_SYMBOL(__backtrace);
+
+ /* platform dependent support */
+EXPORT_SYMBOL(__udelay);
+EXPORT_SYMBOL(__const_udelay);
+
+ /* networking */
+EXPORT_SYMBOL(csum_partial);
+EXPORT_SYMBOL(csum_partial_copy_from_user);
+EXPORT_SYMBOL(csum_partial_copy_nocheck);
+EXPORT_SYMBOL(__csum_ipv6_magic);
+
+ /* io */
+#ifndef __raw_readsb
+EXPORT_SYMBOL(__raw_readsb);
+#endif
+#ifndef __raw_readsw
+EXPORT_SYMBOL(__raw_readsw);
+#endif
+#ifndef __raw_readsl
+EXPORT_SYMBOL(__raw_readsl);
+#endif
+#ifndef __raw_writesb
+EXPORT_SYMBOL(__raw_writesb);
+#endif
+#ifndef __raw_writesw
+EXPORT_SYMBOL(__raw_writesw);
+#endif
+#ifndef __raw_writesl
+EXPORT_SYMBOL(__raw_writesl);
+#endif
+
+ /* string / mem functions */
+EXPORT_SYMBOL(strchr);
+EXPORT_SYMBOL(strrchr);
+EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(memmove);
+EXPORT_SYMBOL(memchr);
+
+ /* user mem (segment) */
+EXPORT_SYMBOL(__strnlen_user);
+EXPORT_SYMBOL(__strncpy_from_user);
+
+EXPORT_SYMBOL(copy_page);
+
+EXPORT_SYMBOL(__copy_from_user);
+EXPORT_SYMBOL(__copy_to_user);
+EXPORT_SYMBOL(__clear_user);
+
+EXPORT_SYMBOL(__get_user_1);
+EXPORT_SYMBOL(__get_user_2);
+EXPORT_SYMBOL(__get_user_4);
+
+EXPORT_SYMBOL(__put_user_1);
+EXPORT_SYMBOL(__put_user_2);
+EXPORT_SYMBOL(__put_user_4);
+EXPORT_SYMBOL(__put_user_8);
+
+ /* crypto hash */
+EXPORT_SYMBOL(sha_transform);
+
diff --git a/arch/unicore32/kernel/module.c b/arch/unicore32/kernel/module.c
new file mode 100644
index 0000000..3e5a38d
--- /dev/null
+++ b/arch/unicore32/kernel/module.c
@@ -0,0 +1,152 @@
+/*
+ * linux/arch/unicore32/kernel/module.c
+ *
+ * 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 <linux/module.h>
+#include <linux/moduleloader.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/gfp.h>
+
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+
+void *module_alloc(unsigned long size)
+{
+ struct vm_struct *area;
+
+ size = PAGE_ALIGN(size);
+ if (!size)
+ return NULL;
+
+ area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
+ if (!area)
+ return NULL;
+
+ return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC);
+}
+
+void module_free(struct module *module, void *region)
+{
+ vfree(region);
+}
+
+int module_frob_arch_sections(Elf_Ehdr *hdr,
+ Elf_Shdr *sechdrs,
+ char *secstrings,
+ struct module *mod)
+{
+ return 0;
+}
+
+int
+apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
+ unsigned int relindex, struct module *module)
+{
+ Elf32_Shdr *symsec = sechdrs + symindex;
+ Elf32_Shdr *relsec = sechdrs + relindex;
+ Elf32_Shdr *dstsec = sechdrs + relsec->sh_info;
+ Elf32_Rel *rel = (void *)relsec->sh_addr;
+ unsigned int i;
+
+ for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rel); i++, rel++) {
+ unsigned long loc;
+ Elf32_Sym *sym;
+ s32 offset;
+
+ offset = ELF32_R_SYM(rel->r_info);
+ if (offset < 0 || offset >
+ (symsec->sh_size / sizeof(Elf32_Sym))) {
+ printk(KERN_ERR "%s: bad relocation, "
+ "section %d reloc %d\n",
+ module->name, relindex, i);
+ return -ENOEXEC;
+ }
+
+ sym = ((Elf32_Sym *)symsec->sh_addr) + offset;
+
+ if (rel->r_offset < 0 || rel->r_offset >
+ dstsec->sh_size - sizeof(u32)) {
+ printk(KERN_ERR "%s: out of bounds relocation, "
+ "section %d reloc %d offset %d size %d\n",
+ module->name, relindex, i, rel->r_offset,
+ dstsec->sh_size);
+ return -ENOEXEC;
+ }
+
+ loc = dstsec->sh_addr + rel->r_offset;
+
+ switch (ELF32_R_TYPE(rel->r_info)) {
+ case R_UNICORE_NONE:
+ /* ignore */
+ break;
+
+ case R_UNICORE_ABS32:
+ *(u32 *)loc += sym->st_value;
+ break;
+
+ case R_UNICORE_PC24:
+ case R_UNICORE_CALL:
+ case R_UNICORE_JUMP24:
+ offset = (*(u32 *)loc & 0x00ffffff) << 2;
+ if (offset & 0x02000000)
+ offset -= 0x04000000;
+
+ offset += sym->st_value - loc;
+ if (offset & 3 ||
+ offset <= (s32)0xfe000000 ||
+ offset >= (s32)0x02000000) {
+ printk(KERN_ERR
+ "%s: relocation out of range, section "
+ "%d reloc %d sym '%s'\n", module->name,
+ relindex, i, strtab + sym->st_name);
+ return -ENOEXEC;
+ }
+
+ offset >>= 2;
+
+ *(u32 *)loc &= 0xff000000;
+ *(u32 *)loc |= offset & 0x00ffffff;
+ break;
+
+ default:
+ printk(KERN_ERR "%s: unknown relocation: %u\n",
+ module->name, ELF32_R_TYPE(rel->r_info));
+ return -ENOEXEC;
+ }
+ }
+ return 0;
+}
+
+int
+apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
+ unsigned int symindex, unsigned int relsec,
+ struct module *module)
+{
+ printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n",
+ module->name);
+ return -ENOEXEC;
+}
+
+int
+module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
+ struct module *module)
+{
+ return 0;
+}
+
+void
+module_arch_cleanup(struct module *mod)
+{
+}
diff --git a/arch/unicore32/kernel/vmlinux.lds.S b/arch/unicore32/kernel/vmlinux.lds.S
new file mode 100644
index 0000000..d8cd090
--- /dev/null
+++ b/arch/unicore32/kernel/vmlinux.lds.S
@@ -0,0 +1,120 @@
+/*
+ * 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 + TEXT_OFFSET;
+
+ .init : { /* Init code and data */
+ _stext = .;
+ _sinittext = .;
+ HEAD_TEXT
+ INIT_TEXT
+ _einittext = .;
+
+ INIT_SETUP(16)
+
+ INIT_CALLS
+ CON_INITCALL
+ SECURITY_INITCALL
+ INIT_RAM_FS
+
+ __init_begin = _stext;
+ INIT_DATA
+ }
+
+ PERCPU(PAGE_SIZE)
+
+ . = ALIGN(PAGE_SIZE);
+ __init_end = .;
+
+ /DISCARD/ : { /* Exit code and data */
+ *(.UNICORE.exidx.exit.text)
+ *(.UNICORE.extab.exit.text)
+ *(.UNICORE.exidx.cpuexit.text)
+ *(.UNICORE.extab.cpuexit.text)
+#ifndef CONFIG_HOTPLUG
+ *(.UNICORE.exidx.devexit.text)
+ *(.UNICORE.extab.devexit.text)
+#endif
+ }
+
+ .text : { /* Real text segment */
+ _text = .; /* Text and read-only data */
+ __exception_text_start = .;
+ *(.exception.text)
+ __exception_text_end = .;
+ TEXT_TEXT
+ SCHED_TEXT
+ LOCK_TEXT
+ *(.fixup)
+ *(.gnu.warning)
+ *(.rodata)
+ *(.rodata.*)
+ . = ALIGN(4);
+ *(.got) /* Global offset table */
+ }
+
+ RO_DATA(PAGE_SIZE)
+
+ _etext = .; /* End of text and rodata section */
+
+ . = ALIGN(THREAD_SIZE);
+ __data_loc = .;
+
+ .data : AT(__data_loc) {
+ _data = .; /* address in memory */
+ _sdata = .;
+
+ /*
+ * first, the init task union, aligned
+ * to an 8192 byte boundary.
+ */
+ INIT_TASK_DATA(THREAD_SIZE)
+
+ NOSAVE_DATA
+ CACHELINE_ALIGNED_DATA(32)
+
+ /*
+ * The exception fixup table (might need resorting at runtime)
+ */
+ . = ALIGN(32);
+ __start___ex_table = .;
+ *(__ex_table)
+ __stop___ex_table = .;
+
+ /*
+ * and the usual data section
+ */
+ DATA_DATA
+ CONSTRUCTORS
+
+ _edata = .;
+ }
+ _edata_loc = __data_loc + SIZEOF(.data);
+
+ BSS_SECTION(0, 0, 0)
+ _end = .;
+
+ STABS_DEBUG
+ .comment 0 : { *(.comment) }
+}
diff --git a/firmware/Makefile b/firmware/Makefile
index 74d47cd..6d36f8a 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -164,7 +164,7 @@ quiet_cmd_fwbin = MK_FW $@
firmware/%.gen.S,%,$@))))"; \
ASM_WORD=$(if $(CONFIG_64BIT),.quad,.long); \
ASM_ALIGN=$(if $(CONFIG_64BIT),3,2); \
- PROGBITS=$(if $(CONFIG_ARM),%,@)progbits; \
+ PROGBITS=$(if $(CONFIG_ARM) and $(CONFIG_UNICORE32),%,@)progbits; \
echo "/* Generated by firmware/Makefile */" > $@;\
echo " .section .rodata" >>$@;\
echo " .p2align $${ASM_ALIGN}" >>$@;\
--
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