sh: Initial SH-X3 SMP support.

This adds basic support for SH-X3 SMP (4 CPUs).

More IPI and cache debugging is necessary, mostly interfacing the
d-cache coherency and the I-cache broadcast invalidates. Only for
testing at present!

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

4 files changed, 375 insertions, 208 deletions

diff --git a/arch/sh/configs/shx3_defconfig b/arch/sh/configs/shx3_defconfig
index 219bad558b10..a794c082709b 100644
--- a/arch/sh/configs/shx3_defconfig
+++ b/arch/sh/configs/shx3_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.22-rc4
-# Wed Jun 20 14:09:27 2007
+# Linux kernel version: 2.6.23-rc7
+# Fri Sep 21 19:07:30 2007
 #
 CONFIG_SUPERH=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
@@ -13,32 +13,33 @@ CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_GENERIC_TIME=y
 CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_SYS_SUPPORTS_SMP=y
+CONFIG_SYS_SUPPORTS_NUMA=y
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_LOCKDEP_SUPPORT=y
 # CONFIG_ARCH_HAS_ILOG2_U32 is not set
 # CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_NO_VIRT_TO_BUS=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
-# Code maturity level options
+# General setup
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_LOCK_KERNEL=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
 CONFIG_LOCALVERSION=""
 CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
 CONFIG_SYSVIPC_SYSCTL=y
+# CONFIG_POSIX_MQUEUE is not set
 CONFIG_BSD_PROCESS_ACCT=y
 # CONFIG_BSD_PROCESS_ACCT_V3 is not set
-# CONFIG_UTS_NS is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_AUDIT is not set
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
@@ -63,34 +64,26 @@ CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
 CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
+# CONFIG_SLAB is not set
 # CONFIG_SLUB is not set
-# CONFIG_SLOB is not set
+CONFIG_SLOB=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
-
-#
-# Loadable module support
-#
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODULE_FORCE_UNLOAD is not set
 # CONFIG_MODVERSIONS is not set
 # CONFIG_MODULE_SRCVERSION_ALL is not set
 CONFIG_KMOD=y
-
-#
-# Block layer
-#
 CONFIG_BLOCK=y
 # CONFIG_LBD is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
 # CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
 
 #
 # IO Schedulers
@@ -113,7 +106,6 @@ CONFIG_CPU_SH4A=y
 CONFIG_CPU_SHX3=y
 # CONFIG_CPU_SUBTYPE_SH7619 is not set
 # CONFIG_CPU_SUBTYPE_SH7206 is not set
-# CONFIG_CPU_SUBTYPE_SH7300 is not set
 # CONFIG_CPU_SUBTYPE_SH7705 is not set
 # CONFIG_CPU_SUBTYPE_SH7706 is not set
 # CONFIG_CPU_SUBTYPE_SH7707 is not set
@@ -121,6 +113,7 @@ CONFIG_CPU_SHX3=y
 # CONFIG_CPU_SUBTYPE_SH7709 is not set
 # CONFIG_CPU_SUBTYPE_SH7710 is not set
 # CONFIG_CPU_SUBTYPE_SH7712 is not set
+# CONFIG_CPU_SUBTYPE_SH7720 is not set
 # CONFIG_CPU_SUBTYPE_SH7750 is not set
 # CONFIG_CPU_SUBTYPE_SH7091 is not set
 # CONFIG_CPU_SUBTYPE_SH7750R is not set
@@ -135,7 +128,6 @@ CONFIG_CPU_SHX3=y
 # CONFIG_CPU_SUBTYPE_SH7780 is not set
 # CONFIG_CPU_SUBTYPE_SH7785 is not set
 CONFIG_CPU_SUBTYPE_SHX3=y
-# CONFIG_CPU_SUBTYPE_SH73180 is not set
 # CONFIG_CPU_SUBTYPE_SH7343 is not set
 # CONFIG_CPU_SUBTYPE_SH7722 is not set
 
@@ -148,12 +140,15 @@ CONFIG_PAGE_OFFSET=0x80000000
 CONFIG_MEMORY_START=0x0c000000
 CONFIG_MEMORY_SIZE=0x04000000
 CONFIG_VSYSCALL=y
+# CONFIG_NUMA is not set
 CONFIG_ARCH_FLATMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_DEFAULT=y
-CONFIG_MAX_ACTIVE_REGIONS=1
+CONFIG_MAX_ACTIVE_REGIONS=6
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_MEMORY_PROBE=y
 CONFIG_PAGE_SIZE_4KB=y
 # CONFIG_PAGE_SIZE_8KB is not set
 # CONFIG_PAGE_SIZE_64KB is not set
@@ -163,12 +158,14 @@ CONFIG_HUGETLB_PAGE_SIZE_64K=y
 # CONFIG_HUGETLB_PAGE_SIZE_4MB is not set
 # CONFIG_HUGETLB_PAGE_SIZE_64MB is not set
 CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
+# CONFIG_FLATMEM_MANUAL is not set
 # CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM=y
+CONFIG_HAVE_MEMORY_PRESENT=y
 CONFIG_SPARSEMEM_STATIC=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTPLUG_SPARSE=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_RESOURCES_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=0
@@ -178,24 +175,25 @@ CONFIG_NR_QUICK=2
 # Cache configuration
 #
 # CONFIG_SH_DIRECT_MAPPED is not set
-# CONFIG_SH_WRITETHROUGH is not set
+# CONFIG_CACHE_WRITEBACK is not set
+# CONFIG_CACHE_WRITETHROUGH is not set
+CONFIG_CACHE_OFF=y
 
 #
 # Processor features
 #
 CONFIG_CPU_LITTLE_ENDIAN=y
 # CONFIG_CPU_BIG_ENDIAN is not set
-# CONFIG_SH_FPU is not set
-# CONFIG_SH_FPU_EMU is not set
-CONFIG_SH_DSP=y
+CONFIG_SH_FPU=y
 CONFIG_SH_STORE_QUEUES=y
 CONFIG_CPU_HAS_INTEVT=y
-CONFIG_CPU_HAS_INTC2_IRQ=y
 CONFIG_CPU_HAS_SR_RB=y
+CONFIG_CPU_HAS_FPU=y
 
 #
 # Board support
 #
+CONFIG_SH_X3PROTO=y
 
 #
 # Timer and clock configuration
@@ -204,13 +202,25 @@ CONFIG_SH_TMU=y
 CONFIG_SH_TIMER_IRQ=16
 CONFIG_SH_PCLK_FREQ=50000000
 CONFIG_TICK_ONESHOT=y
-CONFIG_NO_HZ=y
+# CONFIG_NO_HZ is not set
 CONFIG_HIGH_RES_TIMERS=y
 
 #
 # CPU Frequency scaling
 #
-# CONFIG_CPU_FREQ is not set
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_TABLE=y
+# CONFIG_CPU_FREQ_DEBUG is not set
+CONFIG_CPU_FREQ_STAT=y
+# CONFIG_CPU_FREQ_STAT_DETAILS is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=m
+CONFIG_CPU_FREQ_GOV_USERSPACE=m
+CONFIG_CPU_FREQ_GOV_ONDEMAND=m
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
+CONFIG_SH_CPU_FREQ=y
 
 #
 # DMA support
@@ -237,6 +247,7 @@ CONFIG_HZ_250=y
 CONFIG_HZ=250
 CONFIG_KEXEC=y
 # CONFIG_CRASH_DUMP is not set
+# CONFIG_SMP is not set
 # CONFIG_PREEMPT_NONE is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
 CONFIG_PREEMPT=y
@@ -249,7 +260,7 @@ CONFIG_ZERO_PAGE_OFFSET=0x00001000
 CONFIG_BOOT_LINK_OFFSET=0x00800000
 # CONFIG_UBC_WAKEUP is not set
 CONFIG_CMDLINE_BOOL=y
-CONFIG_CMDLINE="console=ttySC0,115200 ip=192.168.1.2:::255.255.255.0 root=/dev/nfs nfsroot=192.168.1.1:/exports/devel/rfs/mobiler noaliencache earlyprintk=bios ignore_loglevel"
+CONFIG_CMDLINE="console=ttySC0,115200 earlyprintk=bios ignore_loglevel"
 
 #
 # Bus options
@@ -265,12 +276,106 @@ CONFIG_CMDLINE="console=ttySC0,115200 ip=192.168.1.2:::255.255.255.0 root=/dev/n
 # Executable file formats
 #
 CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
+CONFIG_BINFMT_MISC=y
 
 #
 # Networking
 #
-# CONFIG_NET is not set
+CONFIG_NET=y
+
+#
+# Networking options
+#
+# CONFIG_PACKET is not set
+# CONFIG_UNIX is not set
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+CONFIG_INET_TUNNEL=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+CONFIG_IPV6=m
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_IPV6_ROUTER_PREF is not set
+# CONFIG_IPV6_OPTIMISTIC_DAD is not set
+# CONFIG_INET6_AH is not set
+# CONFIG_INET6_ESP is not set
+# CONFIG_INET6_IPCOMP is not set
+# CONFIG_IPV6_MIP6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_BEET=m
+# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=m
+# CONFIG_IPV6_TUNNEL is not set
+# CONFIG_IPV6_MULTIPLE_TABLES is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
 
 #
 # Device Drivers
@@ -285,37 +390,21 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_DEBUG_DRIVER is not set
 # CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
+# CONFIG_CONNECTOR is not set
 # CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
 # CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-# CONFIG_PNPACPI is not set
-
-#
-# Block devices
-#
+CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_COW_COMMON is not set
 # CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 # CONFIG_CDROM_PKTCDVD is not set
-
-#
-# Misc devices
-#
-# CONFIG_BLINK is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_EEPROM_93CX6 is not set
 # CONFIG_IDE is not set
 
 #
@@ -323,6 +412,7 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
 #
 # CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
+CONFIG_SCSI_DMA=y
 # CONFIG_SCSI_TGT is not set
 # CONFIG_SCSI_NETLINK is not set
 CONFIG_SCSI_PROC_FS=y
@@ -351,73 +441,54 @@ CONFIG_SCSI_WAIT_SCAN=m
 #
 # CONFIG_SCSI_SPI_ATTRS is not set
 # CONFIG_SCSI_FC_ATTRS is not set
-# CONFIG_SCSI_SAS_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
 # CONFIG_SCSI_SAS_LIBSAS is not set
-
-#
-# SCSI low-level drivers
-#
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_ISCSI_TCP is not set
 # CONFIG_SCSI_DEBUG is not set
 CONFIG_ATA=y
 # CONFIG_ATA_NONSTANDARD is not set
 CONFIG_PATA_PLATFORM=y
-
-#
-# Multi-device support (RAID and LVM)
-#
 # CONFIG_MD is not set
-
-#
-# ISDN subsystem
-#
-
-#
-# Telephony Support
-#
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_STNIC is not set
+CONFIG_SMC91X=y
+# CONFIG_NETDEV_1000 is not set
+# CONFIG_NETDEV_10000 is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
 # CONFIG_PHONE is not set
 
 #
 # Input device support
 #
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-# CONFIG_INPUT_EVDEV is not set
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-# CONFIG_KEYBOARD_STOWAWAY is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
+# CONFIG_INPUT is not set
 
 #
 # Hardware I/O ports
 #
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-# CONFIG_SERIO_SERPORT is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_SERIO_RAW is not set
+# CONFIG_SERIO is not set
 # CONFIG_GAMEPORT is not set
 
 #
@@ -442,19 +513,18 @@ CONFIG_SERIAL_CORE_CONSOLE=y
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
 
 #
-# IPMI
+# Watchdog Device Drivers
 #
-# CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
-CONFIG_HW_RANDOM=y
+# CONFIG_SOFT_WATCHDOG is not set
+# CONFIG_SH_WDT is not set
+# CONFIG_HW_RANDOM is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
 # CONFIG_TCG_TPM is not set
 # CONFIG_I2C is not set
 
@@ -463,11 +533,8 @@ CONFIG_HW_RANDOM=y
 #
 # CONFIG_SPI is not set
 # CONFIG_SPI_MASTER is not set
-
-#
-# Dallas's 1-wire bus
-#
 # CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
 
 #
@@ -479,6 +546,7 @@ CONFIG_HW_RANDOM=y
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
 # CONFIG_DAB is not set
 
 #
@@ -491,24 +559,18 @@ CONFIG_HW_RANDOM=y
 #
 # CONFIG_DISPLAY_SUPPORT is not set
 # CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=m
 # CONFIG_FB is not set
 
 #
 # Sound
 #
 # CONFIG_SOUND is not set
-
-#
-# HID Devices
-#
-# CONFIG_HID is not set
-
-#
-# USB support
-#
-# CONFIG_USB_ARCH_HAS_HCD is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_ARCH_HAS_HCD=y
 # CONFIG_USB_ARCH_HAS_OHCI is not set
 # CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB is not set
 
 #
 # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
@@ -517,68 +579,32 @@ CONFIG_HW_RANDOM=y
 #
 # USB Gadget Support
 #
-# CONFIG_USB_GADGET is not set
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+CONFIG_USB_GADGET_SELECTED=y
+# CONFIG_USB_GADGET_AMD5536UDC is not set
+# CONFIG_USB_GADGET_FSL_USB2 is not set
+# CONFIG_USB_GADGET_NET2280 is not set
+# CONFIG_USB_GADGET_PXA2XX is not set
+CONFIG_USB_GADGET_M66592=y
+CONFIG_USB_M66592=y
+# CONFIG_USB_GADGET_GOKU is not set
+# CONFIG_USB_GADGET_LH7A40X is not set
+# CONFIG_USB_GADGET_OMAP is not set
+# CONFIG_USB_GADGET_S3C2410 is not set
+# CONFIG_USB_GADGET_AT91 is not set
+# CONFIG_USB_GADGET_DUMMY_HCD is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+# CONFIG_USB_ZERO is not set
+# CONFIG_USB_ETH is not set
+# CONFIG_USB_GADGETFS is not set
+# CONFIG_USB_FILE_STORAGE is not set
+# CONFIG_USB_G_SERIAL is not set
+# CONFIG_USB_MIDI_GADGET is not set
 # CONFIG_MMC is not set
-
-#
-# LED devices
-#
 # CONFIG_NEW_LEDS is not set
-
-#
-# LED drivers
-#
-
-#
-# LED Triggers
-#
-
-#
-# InfiniBand support
-#
-
-#
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
-#
-
-#
-# Real Time Clock
-#
-CONFIG_RTC_LIB=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_HCTOSYS=y
-CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
-# CONFIG_RTC_DEBUG is not set
-
-#
-# RTC interfaces
-#
-CONFIG_RTC_INTF_SYSFS=y
-CONFIG_RTC_INTF_PROC=y
-CONFIG_RTC_INTF_DEV=y
-# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
-# CONFIG_RTC_DRV_TEST is not set
-
-#
-# I2C RTC drivers
-#
-
-#
-# SPI RTC drivers
-#
-
-#
-# Platform RTC drivers
-#
-# CONFIG_RTC_DRV_DS1553 is not set
-# CONFIG_RTC_DRV_DS1742 is not set
-# CONFIG_RTC_DRV_M48T86 is not set
-# CONFIG_RTC_DRV_V3020 is not set
-
-#
-# on-CPU RTC drivers
-#
-CONFIG_RTC_DRV_SH=y
+# CONFIG_RTC_CLASS is not set
 
 #
 # DMA Engine support
@@ -594,6 +620,11 @@ CONFIG_RTC_DRV_SH=y
 #
 
 #
+# Userspace I/O
+#
+CONFIG_UIO=m
+
+#
 # File systems
 #
 CONFIG_EXT2_FS=y
@@ -612,6 +643,7 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_FS_POSIX_ACL is not set
 # CONFIG_XFS_FS is not set
 # CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
 CONFIG_INOTIFY=y
@@ -667,6 +699,17 @@ CONFIG_RAMFS=y
 # CONFIG_UFS_FS is not set
 
 #
+# Network File Systems
+#
+# CONFIG_NFS_FS is not set
+# CONFIG_NFSD is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
 # Partition Types
 #
 # CONFIG_PARTITION_ADVANCED is not set
@@ -678,6 +721,11 @@ CONFIG_MSDOS_PARTITION=y
 # CONFIG_NLS is not set
 
 #
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
+#
 # Profiling support
 #
 CONFIG_PROFILING=y
@@ -687,31 +735,28 @@ CONFIG_PROFILING=y
 # Kernel hacking
 #
 CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-CONFIG_PRINTK_TIME=y
+# CONFIG_PRINTK_TIME is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
 CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DEBUG_SHIRQ=y
 CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
-CONFIG_DEBUG_SLAB=y
-CONFIG_DEBUG_SLAB_LEAK=y
 CONFIG_DEBUG_PREEMPT=y
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
-CONFIG_DEBUG_SPINLOCK=y
-CONFIG_DEBUG_MUTEXES=y
-CONFIG_DEBUG_LOCK_ALLOC=y
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
 # CONFIG_PROVE_LOCKING is not set
-CONFIG_LOCKDEP=y
-CONFIG_DEBUG_LOCKDEP=y
+# CONFIG_LOCK_STAT is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-CONFIG_STACKTRACE=y
 # CONFIG_DEBUG_KOBJECT is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
@@ -735,10 +780,6 @@ CONFIG_DEBUG_STACK_USAGE=y
 #
 # CONFIG_KEYS is not set
 # CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
 # CONFIG_CRYPTO is not set
 
 #
@@ -749,6 +790,7 @@ CONFIG_BITREVERSE=y
 # CONFIG_CRC16 is not set
 # CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
 # CONFIG_LIBCRC32C is not set
 CONFIG_PLIST=y
 CONFIG_HAS_IOMEM=y
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index e6a1fb5f8484..24539873943a 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -10,6 +10,9 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7343)	+= setup-sh7343.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7722)        += setup-sh7722.o
 obj-$(CONFIG_CPU_SUBTYPE_SHX3)          += setup-shx3.o
 
+# SMP setup
+smp-$(CONFIG_CPU_SUBTYPE_SHX3)          := smp-shx3.o
+
 # Primary on-chip clocks (common)
 clock-$(CONFIG_CPU_SUBTYPE_SH7770)      := clock-sh7770.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7780)      := clock-sh7780.o
@@ -18,4 +21,5 @@ clock-$(CONFIG_CPU_SUBTYPE_SH7343)	:= clock-sh7343.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7722)      := clock-sh7722.o
 clock-$(CONFIG_CPU_SUBTYPE_SHX3)        := clock-shx3.o
 
-obj-y   += $(clock-y)
+obj-y                   += $(clock-y)
+obj-$(CONFIG_SMP)       += $(smp-y)
diff --git a/arch/sh/kernel/cpu/sh4a/smp-shx3.c b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
new file mode 100644
index 000000000000..e5e06845fa43
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
@@ -0,0 +1,120 @@
+/*
+ * SH-X3 SMP
+ *
+ *  Copyright (C) 2007  Paul Mundt
+ *  Copyright (C) 2007  Magnus Damm
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/cpumask.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+
+void __init plat_smp_setup(void)
+{
+        unsigned int cpu = 0;
+        int i, num;
+
+        cpus_clear(cpu_possible_map);
+        cpu_set(cpu, cpu_possible_map);
+
+        __cpu_number_map[0] = 0;
+        __cpu_logical_map[0] = 0;
+
+        /*
+         * Do this stupidly for now.. we don't have an easy way to probe
+         * for the total number of cores.
+         */
+        for (i = 1, num = 0; i < NR_CPUS; i++) {
+                cpu_set(i, cpu_possible_map);
+                __cpu_number_map[i] = ++num;
+                __cpu_logical_map[num] = i;
+        }
+
+        printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
+}
+
+#define STBCR_REG(phys_id) (0xfe400004 | (phys_id << 12))
+#define RESET_REG(phys_id) (0xfe400008 | (phys_id << 12))
+
+#define STBCR_MSTP      0x00000001
+#define STBCR_RESET     0x00000002
+#define STBCR_LTSLP     0x80000000
+
+#define STBCR_AP_VAL    (STBCR_RESET | STBCR_LTSLP)
+
+void plat_start_cpu(unsigned int cpu, unsigned long entry_point)
+{
+        ctrl_outl(entry_point, RESET_REG(cpu));
+
+        if (!(ctrl_inl(STBCR_REG(cpu)) & STBCR_MSTP))
+                ctrl_outl(STBCR_MSTP, STBCR_REG(cpu));
+
+        while (!(ctrl_inl(STBCR_REG(cpu)) & STBCR_MSTP))
+                ;
+
+        /* Start up secondary processor by sending a reset */
+        ctrl_outl(STBCR_AP_VAL, STBCR_REG(cpu));
+}
+
+int plat_smp_processor_id(void)
+{
+        return ctrl_inl(0xff000048); /* CPIDR */
+}
+
+void plat_send_ipi(unsigned int cpu, unsigned int message)
+{
+        unsigned long addr = 0xfe410070 + (cpu * 4);
+
+        BUG_ON(cpu >= 4);
+        BUG_ON(message >= SMP_MSG_NR);
+
+        ctrl_outl(1 << (message << 2), addr); /* C0INTICI..CnINTICI */
+}
+
+struct ipi_data {
+        void (*handler)(void *);
+        void *arg;
+        unsigned int message;
+};
+
+static irqreturn_t ipi_interrupt_handler(int irq, void *arg)
+{
+        struct ipi_data *id = arg;
+        unsigned int cpu = hard_smp_processor_id();
+        unsigned int offs = 4 * cpu;
+        unsigned int x;
+
+        x = ctrl_inl(0xfe410070 + offs); /* C0INITICI..CnINTICI */
+        x &= (1 << (id->message << 2));
+        ctrl_outl(x, 0xfe410080 + offs); /* C0INTICICLR..CnINTICICLR */
+
+        id->handler(id->arg);
+
+        return IRQ_HANDLED;
+}
+
+static struct ipi_data ipi_handlers[SMP_MSG_NR];
+
+int plat_register_ipi_handler(unsigned int message,
+                              void (*handler)(void *), void *arg)
+{
+        struct ipi_data *id = &ipi_handlers[message];
+
+        BUG_ON(SMP_MSG_NR >= 8);
+        BUG_ON(message >= SMP_MSG_NR);
+
+        id->handler = handler;
+        id->arg = arg;
+        id->message = message;
+
+        return request_irq(104 + message, ipi_interrupt_handler, 0, "IPI", id);
+}
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 5aaf6248e0aa..a953989ada47 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -190,6 +190,7 @@ config CPU_SUBTYPE_SHX3
         select CPU_SHX3
         select ARCH_SPARSEMEM_ENABLE
         select SYS_SUPPORTS_NUMA
+        select SYS_SUPPORTS_SMP
 
 # SH4AL-DSP Processor Support