Here's my .config. I based it all of of the kirkwood_defaults and did not add anything but CIFS and kernel config support, Advanced jffs2 compression, some crypto modules and NTFS support. I'll probably get rid of NFS support once I've got everything to my liking. Remember, for some reason this kernel changes the name of the MTD from nand_mtd to orion_nand so adjust your bootargs accordingly.
I pulled the kernel sources from orion.git as described
here. Very important! Don't forget to follow the instructions to create the mkimage from uboot .
Unfortunately the forum isn't setup to allow attachments, so excuse the long block of code here. I'll remove all the comments and none set variables. It should be usable as a .config like that. There is still alLOT of room left to remove things from the kernel. The USB subsystem in particular is full of unneeded things. You can easily generate this yourself on your plug. Download the orion.git sources, make ARCH=arm mrproper;make ARCH=arm kirkwood_defconfig;make ARCH=arm menuconfig;make ARCH=arm uImage. You'll find the kernel image in arch/arm/boot/uImage and can do what you want with it fro there.
CONFIG_ARM=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_GENERIC_GPIO=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_MMU=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_VECTORS_BASE=0xffff0000
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
# General setup
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# RCU Subsystem
CONFIG_CLASSIC_RCU=y
CONFIG_IKCONFIG=y
CONFIG_LOG_BUF_SHIFT=19
CONFIG_NAMESPACES=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
CONFIG_COMPAT_BRK=y
CONFIG_SLUB=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=y
CONFIG_HAVE_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_KRETPROBES=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_BLOCK=y
# IO Schedulers
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
CONFIG_DEFAULT_IOSCHED="cfq"
# System Type
CONFIG_ARCH_KIRKWOOD=y
# Marvell Kirkwood Implementations
CONFIG_MACH_DB88F6281_BP=y
CONFIG_MACH_RD88F6192_NAS=y
CONFIG_MACH_RD88F6281=y
CONFIG_MACH_SHEEVAPLUG=y
CONFIG_MACH_TS219=y
CONFIG_PLAT_ORION=y
# Processor Type
CONFIG_CPU_32=y
CONFIG_CPU_FEROCEON=y
CONFIG_CPU_32v5=y
CONFIG_CPU_ABRT_EV5T=y
CONFIG_CPU_PABRT_NOIFAR=y
CONFIG_CPU_CACHE_VIVT=y
CONFIG_CPU_COPY_FEROCEON=y
CONFIG_CPU_TLB_FEROCEON=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y
# Processor Features
CONFIG_ARM_THUMB=y
CONFIG_OUTER_CACHE=y
CONFIG_CACHE_FEROCEON_L2=y
# Bus support
CONFIG_PCI=y
CONFIG_PCI_SYSCALL=y
CONFIG_PCI_LEGACY=y
# Kernel Features
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_VMSPLIT_3G=y
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_PREEMPT=y
CONFIG_HZ=100
CONFIG_AEABI=y
CONFIG_ARCH_FLATMEM_HAS_HOLES=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4096
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
CONFIG_ALIGNMENT_TRAP=y
# Boot options
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE=""
# CPU Power Management
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# Floating point emulation
# Userspace binary formats
CONFIG_BINFMT_ELF=y
CONFIG_HAVE_AOUT=y
# Power management options
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_NET=y
# Networking options
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_NET_DSA=y
CONFIG_NET_DSA_TAG_EDSA=y
CONFIG_NET_DSA_MV88E6XXX=y
CONFIG_NET_DSA_MV88E6123_61_65=y
# Network testing
CONFIG_NET_PKTGEN=m
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
CONFIG_WIRELESS_OLD_REGULATORY=y
CONFIG_WIRELESS_EXT=y
CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_LIB80211=y
CONFIG_MAC80211=y
# Rate control algorithm selection
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel"
# Device Drivers
# Generic Driver Options
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
# User Modules And Translation Layers
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# RAM/ROM/Flash chip drivers
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_GEN_PROBE=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
CONFIG_MTD_CFI_NOSWAP=y
CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_CFI_UTIL=y
# Mapping drivers for chip access
CONFIG_MTD_PHYSMAP=y
# Self-contained MTD device drivers
CONFIG_MTD_M25P80=y
CONFIG_M25PXX_USE_FAST_READ=y
# Disk-On-Chip Device Drivers
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_IDS=y
CONFIG_MTD_NAND_ORION=y
# LPDDR flash memory drivers
# UBI - Unsorted block images
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_HAVE_IDE=y
# SCSI device support
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# SCSI support type (disk, tape, CD-ROM)
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
CONFIG_SCSI_WAIT_SCAN=m
# SCSI Transports
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ATA=y
CONFIG_SATA_PMP=y
CONFIG_ATA_SFF=y
CONFIG_SATA_MV=y
# IEEE 1394 (FireWire) support
CONFIG_NETDEVICES=y
CONFIG_COMPAT_NET_DEV_OPS=y
CONFIG_PHYLIB=y
# MII PHY device drivers
CONFIG_MARVELL_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_NET_PCI=y
CONFIG_NETDEV_1000=y
CONFIG_MV643XX_ETH=y
# Wireless LAN
CONFIG_WLAN_80211=y
CONFIG_LIBERTAS=y
CONFIG_LIBERTAS_SDIO=y
# Enable WiMAX (Networking options) to see the WiMAX drivers
# USB Network Adapters
# Input device support
CONFIG_INPUT=y
# Userland interfaces
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_EVDEV=y
# Input Device Drivers
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_GPIO=y
# Hardware I/O ports
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y
# Character devices
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# Serial drivers
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=2
# Non-8250 serial port support
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_HELPER_AUTO=y
# I2C Hardware Bus support
# PC SMBus host controller drivers
# I2C system bus drivers (mostly embedded / system-on-chip)
CONFIG_I2C_MV64XXX=y
# Miscellaneous I2C Chip support
CONFIG_SPI=y
CONFIG_SPI_MASTER=y
# SPI Master Controller Drivers
CONFIG_SPI_ORION=y
CONFIG_SSB_POSSIBLE=y
# Sonics Silicon Backplane
# Multifunction device drivers
# Multimedia devices
# Multimedia core support
# Multimedia drivers
# Graphics support
# Display device support
# Console display driver support
CONFIG_DUMMY_CONSOLE=y
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# USB Input Devices
CONFIG_USB_HID=y
# Special HID drivers
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_EZKEY=y
CONFIG_HID_KYE=y
CONFIG_HID_GYRATION=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LOGITECH=y
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_NTRIG=y
CONFIG_HID_PANTHERLORD=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_TOPSEED=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# Miscellaneous USB options
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# USB Host Controller Drivers
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
# USB Device Class drivers
CONFIG_USB_PRINTER=m
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_FREECOM=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
# USB Imaging devices
# USB port drivers
# USB Miscellaneous drivers
# OTG and related infrastructure
CONFIG_MMC=y
# MMC/SD/SDIO Card Drivers
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_BOUNCE=y
CONFIG_SDIO_UART=y
CONFIG_MMC_MVSDIO=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# LED drivers
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_GPIO_PLATFORM=y
# LED Triggers
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# RTC interfaces
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# I2C RTC drivers
CONFIG_RTC_DRV_S35390A=y
# SPI RTC drivers
# Platform RTC drivers
# on-CPU RTC drivers
CONFIG_RTC_DRV_MV=y
CONFIG_DMADEVICES=y
# DMA Devices
CONFIG_MV_XOR=y
CONFIG_DMA_ENGINE=y
# File systems
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_JBD=y
CONFIG_FILE_LOCKING=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
# CD-ROM/DVD Filesystems
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
# DOS/FAT/NT Filesystems
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_NTFS_FS=y
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_MISC_FILESYSTEMS=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
CONFIG_JFFS2_ZLIB=y
CONFIG_JFFS2_RTIME=y
CONFIG_JFFS2_CMODE_PRIORITY=y
CONFIG_CRAMFS=y
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_CIFS=y
# Partition Types
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=y
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_UTF8=y
# Kernel hacking
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_STACKTRACE=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_RING_BUFFER=y
CONFIG_TRACING=y
CONFIG_TRACING_SUPPORT=y
# Tracers
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_ARM_UNWIND=y
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
# Security options
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_WORKQUEUE=y
# Authenticated Encryption with Associated Data
# Block modes
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=m
# Hash modes
# Digest
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_ARC4=y
# Compression
# Random Number Generation
CONFIG_CRYPTO_HW=y
CONFIG_BINARY_PRINTF=y
# Library routines
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_LIBCRC32C=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
