1 preparation my board is s3c2410 SMDK2410 a>download kernel http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.11.7.tar.gz decompress and no patch is needed b>install the gcc compiler ftp://ftp.handhelds.org/projects/toolchain/arm-linux-gcc-3.4.1.tar.bz2
2 modify kernel source a>add your nand flash partition information modify the arch/arm/mach-s3c2410/devs.c file for example:/***********add here*************/#include <linux/mtd/partitions.h>#include <asm/arch/nand.h>#include <linux/mtd/nand.h> /***********end add*************/ ... /*****************************add here***************************/ static struct mtd_partition partition_info[] ={ { name: "loader", size: 0x00020000, offset: 0, }, { name: "param", size: 0x00010000, offset: 0x00020000, }, { name: "kernel", size: 0x001c0000, offset: 0x00030000, }, { name: "root", size: 0x00200000, offset: 0x00200000, mask_flags: MTD_WRITEABLE, }, { name: "user", size: 0x03af8000, offset: 0x00400000, } }; struct s3c2410_nand_set nandset ={ nr_partitions: 5 , partitions: partition_info , }; struct s3c2410_platform_nand superlpplatform={ tacls:0, twrph0:30, twrph1:0, sets: &nandset, nr_sets: 1, }; /********************************end add****************************/ struct platform_device s3c_device_nand = { .name = "s3c2410-nand", .id = 0xec, .num_resources = ARRAY_SIZE(s3c_nand_resource), .resource = s3c_nand_resource, .dev = { .platform_data = &superlpplatform //***********add here***** } };
b>add "&s3c_device_nand" to the __initdata in the arch/arm/mach-s3c2410/mach-smdk2410.c c>disable the ecc modify the drivers/mtd/nand/s3c2410.c for example: /**** chip->eccmode = NAND_ECC_SOFT; **/ chip->eccmode = NAND_ECC_NONE; 3 config the kernel a>modify the MakeFile for example: ##SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ / ## -e s/arm.*/arm/ -e s/sa110/arm/ / ## -e s/s390x/s390/ -e s/parisc64/parisc/ ) SUBARCH :=arm ##CROSS_COMPILE ?= CROSS_COMPILE ?=/toolchain/bin/arm-linux- ##according to your situation b>make menuconfig.... the following is my configuration # # Automatically generated make config: don't edit # Linux kernel version: 2.6.11.7 # Mon May 2 14:26:10 2005 # CONFIG_ARM=y CONFIG_MMU=y CONFIG_UID16=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_IOMAP=y # # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y # # General setup # CONFIG_LOCALVERSION="" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set CONFIG_LOG_BUF_SHIFT=14 # CONFIG_HOTPLUG is not set # CONFIG_IKCONFIG is not set # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 # CONFIG_TINY_SHMEM is not set # # Loadable module support # CONFIG_MODULES=y # CONFIG_MODULE_UNLOAD is not set CONFIG_OBSOLETE_MODPARM=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y # # System Type # # CONFIG_ARCH_CLPS7500 is not set # CONFIG_ARCH_CLPS711X is not set # CONFIG_ARCH_CO285 is not set # CONFIG_ARCH_EBSA110 is not set # CONFIG_ARCH_CAMELOT is not set # CONFIG_ARCH_FOOTBRIDGE is not set # CONFIG_ARCH_INTEGRATOR is not set # CONFIG_ARCH_IOP3XX is not set # CONFIG_ARCH_IXP4XX is not set # CONFIG_ARCH_IXP2000 is not set # CONFIG_ARCH_L7200 is not set # CONFIG_ARCH_PXA is not set # CONFIG_ARCH_RPC is not set # CONFIG_ARCH_SA1100 is not set CONFIG_ARCH_S3C2410=y # CONFIG_ARCH_SHARK is not set # CONFIG_ARCH_LH7A40X is not set # CONFIG_ARCH_OMAP is not set # CONFIG_ARCH_VERSATILE is not set # CONFIG_ARCH_IMX is not set # CONFIG_ARCH_H720X is not set # # S3C24XX Implementations # # CONFIG_ARCH_BAST is not set # CONFIG_ARCH_H1940 is not set CONFIG_ARCH_SMDK2410=y # CONFIG_MACH_VR1000 is not set # CONFIG_MACH_RX3715 is not set CONFIG_CPU_S3C2410=y # # S3C2410 Setup # # CONFIG_S3C2410_DMA is not set CONFIG_S3C2410_LOWLEVEL_UART_PORT=0 # # Processor Type # CONFIG_CPU_32=y CONFIG_CPU_ARM920T=y CONFIG_CPU_32v4=y CONFIG_CPU_ABRT_EV4T=y CONFIG_CPU_CACHE_V4WT=y CONFIG_CPU_CACHE_VIVT=y CONFIG_CPU_COPY_V4WB=y CONFIG_CPU_TLB_V4WBI=y # # Processor Features # CONFIG_ARM_THUMB=y # CONFIG_CPU_ICACHE_DISABLE is not set # CONFIG_CPU_DCACHE_DISABLE is not set # CONFIG_CPU_DCACHE_WRITETHROUGH is not set # # General setup # CONFIG_ZBOOT_ROM_TEXT=0 CONFIG_ZBOOT_ROM_BSS=0 # CONFIG_XIP_KERNEL is not set # # PCCARD (PCMCIA/CardBus) support # # CONFIG_PCCARD is not set # # PC-card bridges # # # At least one math emulation must be selected # CONFIG_FPE_NWFPE=y # CONFIG_FPE_NWFPE_XP is not set # CONFIG_FPE_FASTFPE is not set CONFIG_BINFMT_ELF=y CONFIG_BINFMT_AOUT=y CONFIG_BINFMT_MISC=y # # Generic Driver Options # CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_FW_LOADER is not set # CONFIG_DEBUG_DRIVER is not set # CONFIG_PM is not set # CONFIG_PREEMPT is not set # CONFIG_ARTHUR is not set CONFIG_CMDLINE="" CONFIG_ALIGNMENT_TRAP=y # # Parallel port support # # CONFIG_PARPORT is not set # # Memory Technology Devices (MTD) # CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set CONFIG_MTD_PARTITIONS=y # CONFIG_MTD_CONCAT is not set # CONFIG_MTD_REDBOOT_PARTS is not set # CONFIG_MTD_CMDLINE_PARTS is not set # CONFIG_MTD_AFS_PARTS is not set # # User Modules And Translation Layers # CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y # CONFIG_FTL is not set CONFIG_NFTL=y # CONFIG_NFTL_RW is not set # CONFIG_INFTL is not set # # RAM/ROM/Flash chip drivers # # CONFIG_MTD_CFI is not set # CONFIG_MTD_JEDECPROBE is not set CONFIG_MTD_MAP_BANK_WIDTH_1=y CONFIG_MTD_MAP_BANK_WIDTH_2=y CONFIG_MTD_MAP_BANK_WIDTH_4=y # CONFIG_MTD_MAP_BANK_WIDTH_8 is not set # CONFIG_MTD_MAP_BANK_WIDTH_16 is not set # CONFIG_MTD_MAP_BANK_WIDTH_32 is not set CONFIG_MTD_CFI_I1=y CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_I4 is not set # CONFIG_MTD_CFI_I8 is not set # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set # # Mapping drivers for chip access # # CONFIG_MTD_COMPLEX_MAPPINGS is not set # # Self-contained MTD device drivers # # CONFIG_MTD_SLRAM is not set # CONFIG_MTD_PHRAM is not set # CONFIG_MTD_MTDRAM is not set # CONFIG_MTD_BLKMTD is not set # CONFIG_MTD_BLOCK2MTD is not set # # Disk-On-Chip Device Drivers # # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOC2001PLUS is not set # # NAND Flash Device Drivers # CONFIG_MTD_NAND=y # CONFIG_MTD_NAND_VERIFY_WRITE is not set CONFIG_MTD_NAND_IDS=y CONFIG_MTD_NAND_S3C2410=y # CONFIG_MTD_NAND_S3C2410_DEBUG is not set # CONFIG_MTD_NAND_S3C2410_HWECC is not set # CONFIG_MTD_NAND_DISKONCHIP is not set # CONFIG_MTD_NAND_NANDSIM is not set # # Plug and Play support # # # Block devices # # CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_DEV_COW_COMMON is not set # CONFIG_BLK_DEV_LOOP is not set # CONFIG_BLK_DEV_RAM is not set CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_INITRAMFS_SOURCE="" # CONFIG_CDROM_PKTCDVD is not set # # IO Schedulers # CONFIG_IOSCHED_NOOP=y # CONFIG_IOSCHED_AS is not set # CONFIG_IOSCHED_DEADLINE is not set # CONFIG_IOSCHED_CFQ is not set # # Multi-device support (RAID and LVM) # # CONFIG_MD is not set # # Networking support # # CONFIG_NET is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set # # ATA/ATAPI/MFM/RLL support # # CONFIG_IDE is not set # # SCSI device support # # CONFIG_SCSI is not set # # Fusion MPT device support # # # IEEE 1394 (FireWire) support # # # I2O device support # # # ISDN subsystem # # # Input device support # CONFIG_INPUT=y # # 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 I/O drivers # # CONFIG_GAMEPORT is not set CONFIG_SOUND_GAMEPORT=y # CONFIG_SERIO is not set # # Input Device Drivers # # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set # # Character devices # CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y # CONFIG_SERIAL_NONSTANDARD is not set # # Serial drivers # # CONFIG_SERIAL_8250 is not set # # Non-8250 serial port support # CONFIG_SERIAL_S3C2410=y CONFIG_SERIAL_S3C2410_CONSOLE=y CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y # CONFIG_LEGACY_PTYS is not set # # IPMI # # CONFIG_IPMI_HANDLER is not set # # Watchdog Cards # # CONFIG_WATCHDOG is not set # CONFIG_NVRAM is not set # CONFIG_RTC is not set # CONFIG_S3C2410_RTC is not set # CONFIG_DTLK is not set # CONFIG_R3964 is not set # # Ftape, the floppy tape device driver # # CONFIG_DRM is not set # CONFIG_RAW_DRIVER is not set # # I2C support # # CONFIG_I2C is not set # # Multimedia devices # # CONFIG_VIDEO_DEV is not set # # Digital Video Broadcasting Devices # # # File systems # # CONFIG_EXT2_FS is not set # CONFIG_EXT3_FS is not set # CONFIG_JBD is not set # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # # XFS support # # CONFIG_XFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # # CD-ROM/DVD Filesystems # # CONFIG_ISO9660_FS is not set # CONFIG_UDF_FS is not set # # DOS/FAT/NT Filesystems # # CONFIG_MSDOS_FS is not set # CONFIG_VFAT_FS is not set # CONFIG_NTFS_FS is not set # # Pseudo filesystems # CONFIG_PROC_FS=y CONFIG_SYSFS=y CONFIG_DEVFS_FS=y CONFIG_DEVFS_MOUNT=y # CONFIG_DEVFS_DEBUG is not set # CONFIG_DEVPTS_FS_XATTR is not set # CONFIG_TMPFS is not set # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # # Miscellaneous filesystems # # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_HFSPLUS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set # CONFIG_JFFS_FS is not set CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 CONFIG_JFFS2_FS_NAND=y # CONFIG_JFFS2_FS_NOR_ECC is not set # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set CONFIG_JFFS2_ZLIB=y CONFIG_JFFS2_RTIME=y # CONFIG_JFFS2_RUBIN is not set CONFIG_CRAMFS=y # CONFIG_VXFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y # # Native Language Support # # CONFIG_NLS is not set # # Profiling support # # CONFIG_PROFILING is not set # # Graphics support # # CONFIG_FB is not set # # Console display driver support # # CONFIG_VGA_CONSOLE is not set CONFIG_DUMMY_CONSOLE=y # # Sound # # CONFIG_SOUND is not set # # Misc devices # # # USB support # # CONFIG_USB is not set CONFIG_USB_ARCH_HAS_HCD=y # CONFIG_USB_ARCH_HAS_OHCI is not set # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information # # # USB Gadget Support # # CONFIG_USB_GADGET is not set # # MMC/SD Card support # # CONFIG_MMC is not set # # Kernel hacking # CONFIG_DEBUG_KERNEL=y # CONFIG_MAGIC_SYSRQ is not set # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set # CONFIG_DEBUG_FS is not set CONFIG_FRAME_POINTER=y # CONFIG_DEBUG_USER is not set # CONFIG_DEBUG_WAITQ is not set # CONFIG_DEBUG_ERRORS is not set CONFIG_DEBUG_LL=y # CONFIG_DEBUG_ICEDCC is not set CONFIG_DEBUG_S3C2410_PORT=y CONFIG_DEBUG_S3C2410_UART=0 # # Security options # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set # # Cryptographic options # # CONFIG_CRYPTO is not set # # Hardware crypto devices # # # Library routines # # CONFIG_CRC_CCITT is not set CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y 4 compile kernel make 5 set linux command line for example: noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0,115200 mac=00:0e:3a:aa:bb:cc 6 result the result is as follows: Uncompressing Linux........................................ done, booting the kernel. Linux version 2.6.11.7 (root@localhost.localdomain) (gcc version 3.4.1) #7 Mon May 2 14:21:51 CST 2005 CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T) CPU0: D VIVT write-back cache CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets Machine: SMDK2410 ATAG_INITRD is deprecated; please update your bootloader. Memory policy: ECC disabled, Data cache writeback CPU S3C2410A (id 0x32410002) S3C2410: core 200.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz S3C2410 Clock control, (c) 2004 Simtec Electronics Built 1 zonelists Kernel command line: noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0,115200 mac=00:0e:3a:aa:bb:cc irq: clearing subpending status 00000002 PID hash table entries: 512 (order: 9, 8192 bytes) timer tcon=00000000, tcnt a2c1, tcfg 00000200,00000000, usec 00001eb8 Console: colour dummy device 80x30 Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 64MB = 64MB total Memory: 63520KB available (961K code, 238K data, 56K init) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) CPU: Testing write buffer coherency: ok Linux NoNET1.0 for Linux 2.6 S3C2410: Initialising architecture NetWinder Floating Point Emulator V0.97 (double precision) devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au) devfs: boot_options: 0x1 JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc. s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2410 s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2410 s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2410 io scheduler noop registered NFTL driver: nftlcore.c $Revision: 1.97 $, nftlmount.c $Revision: 1.40 $ S3C2410 NAND Driver, (c) 2004 Simtec Electronics s3c2410-nand: mapped registers at c4880000 s3c2410-nand: timing: Tacls 10ns, Twrph0 40ns, Twrph1 10ns NAND device: Manufacturer ID: 0xec, Chip ID: 0x76 (Samsung NAND 64MiB 3,3V 8-bit) NAND_ECC_NONE selected by board driver. This is not recommended !! Scanning device for bad blocks Creating 5 MTD partitions on "NAND 64MiB 3,3V 8-bit": 0x00000000-0x00020000 : "loader" 0x00020000-0x00030000 : "param" 0x00030000-0x001f0000 : "kernel" 0x00200000-0x00400000 : "root" 0x00400000-0x03ef8000 : "user" mice: PS/2 mouse device common for all mice Reading data from NAND FLASH without ECC is not recommended VFS: Mounted root (cramfs filesystem) readonly. Mounted devfs on /dev Freeing init memory: 56K mount /etc as ramfs re-create the /etc/mtab entries Reading data from NAND FLASH without ECC is not recommended /sbin/insmod: relocation error: /sbin/insmod: symbol query_module, version GLIBC_2.0 not defined in file libc.so.6 with link time reference mount: Mounting /dev/mtdblock/4 on /usr failed: No such device console=/dev/console init started: BusyBox v0.60.3 (2002.05.13-08:36+0000) multi-call binary Starting pid 23, console /dev/console: '/etc/init.d/rcS' mount: Mounting tmpfs on /dev/shm failed: No such file or directory exec: /usr/etc/rc.local: No such file or directory Waiting for enter to start '/bin/sh' (pid 26, terminal /dev/console) Please press Enter to activate this console. Starting pid 26, console /dev/console: '/bin/sh' BusyBox v0.60.3 (2002.05.13-08:36+0000) Built-in shell (ash) Enter 'help' for a list of built-in commands. # 7 conclusion the basic function is ok now , next the ecc should be corrected and many drivers should be added.(to be continued) from http://superlp.blogchina.com/superlp/1391393.html