안녕하세요.

CLabsys 社의 LN2440SBC(s3c2440)에 리눅스 포팅을 하고 있습니다.

u-boot : 1.3.4

kernel : 2.6.38

toolchain : Sourcery G++ Lite 2010q1-188

usb gadget을 이용하여 nfs로 루트 파일 시스템을 사용하고 있습니다.

그런데 로그인 메시지가 뜨지가 않네요. 도무지 왜 그런지 감을 잡을 수가 없네요.

커널이 잘 못 된건지 아니면 루트 파일 시스템이 문제인지...

u-boot의 설정은 다음과 같습니다.

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SMDK2440 # printenv

bootdelay=3

baudrate=115200

ethaddr=00:40:5c:26:0a:5b

netmask=255.255.255.0

serverip=192.168.1.1

ipaddr=192.168.1.2

gatewayip=192.168.1.1

bootcmd=dnw 32000000;bootm 32000000

bootargs=root=/dev/nfs rw nfsroot=192.168.1.1:/home/john/work/tftpboot/rootfs/rootfs_nfs ip=192.168.1.2:192.168.1.1:192.168.1.1:255.255.255.0::usb0:off console=ttySAC0,115200n81 mem=64M

stdin=serial

stdout=serial

stderr=serial

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커널 메시지는 아래와 같습니다.

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Starting kernel ...

Uncompressing Linux... done, booting the kernel.

Linux version 2.6.38-rc4 (john@john-vm) (gcc version 4.4.1 (Sourcery G++ Lite 2010q1-188) ) #40 Fri Oct 26 16:57:04 KST 2012

CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177

CPU: VIVT data cache, VIVT instruction cache

Machine: SMDK2440

Memory policy: ECC disabled, Data cache writeback

CPU S3C2440A (id 0x32440001)

S3C24XX Clocks, Copyright 2004 Simtec Electronics

S3C244X: core 405.000 MHz, memory 135.000 MHz, peripheral 67.500 MHz

CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256

Kernel command line: root=/dev/nfs rw nfsroot=192.168.1.1:/home/john/work/tftpboot/rootfs/rootfs_nfs ip=192.168.1.2:192.168.1.1:192.168.1.1:255.255.255.0::usb0:off console=ttySAC0,115200n81 mem=64M

PID hash table entries: 256 (order: -2, 1024 bytes)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory: 64MB = 64MB total

Memory: 60892k/60892k available, 4644k reserved, 0K highmem

Virtual kernel memory layout:

    vector  : 0xffff0000 - 0xffff1000   (   4 kB)

    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)

    DMA     : 0xffc00000 - 0xffe00000   (   2 MB)

    vmalloc : 0xc4800000 - 0xf6000000   ( 792 MB)

    lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)

    modules : 0xbf000000 - 0xc0000000   (  16 MB)

      .init : 0xc0008000 - 0xc002a000   ( 136 kB)

      .text : 0xc002a000 - 0xc03a0000   (3544 kB)

      .data : 0xc03a0000 - 0xc03c1940   ( 135 kB)

NR_IRQS:85

irq: clearing subpending status 00000002

Console: colour dummy device 80x30

console [ttySAC0] enabled

Calibrating delay loop... 201.93 BogoMIPS (lpj=504832)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

CPU: Testing write buffer coherency: ok

gpiochip_add: gpios 288..303 (GPIOK) failed to register

gpiochip_add: gpios 320..334 (GPIOL) failed to register

gpiochip_add: gpios 352..353 (GPIOM) failed to register

NET: Registered protocol family 16

S3C Power Management, Copyright 2004 Simtec Electronics

S3C2440: Initialising architecture

S3C2440: IRQ Support

S3C244X: Clock Support, DVS off

bio: create slab <bio-0> at 0

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

s3c-i2c s3c2440-i2c: slave address 0x10

s3c-i2c s3c2440-i2c: bus frequency set to 65 KHz

s3c-i2c s3c2440-i2c: i2c-0: S3C I2C adapter

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

NetWinder Floating Point Emulator V0.97 (extended precision)

JFFS2 version 2.2. (NAND) (SUMMARY)  ⓒ 2001-2006 Red Hat, Inc.

ROMFS MTD (C) 2007 Red Hat, Inc.

msgmni has been set to 118

io scheduler noop registered

io scheduler deadline registered

io scheduler cfq registered (default)

Console: switching to colour frame buffer device 30x40

fb0: s3c2410fb frame buffer device

Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled

s3c2440-uart.0: ttySAC0 at MMIO 0x50000000 (irq = 70) is a S3C2440

s3c2440-uart.1: ttySAC1 at MMIO 0x50004000 (irq = 73) is a S3C2440

s3c2440-uart.2: ttySAC2 at MMIO 0x50008000 (irq = 76) is a S3C2440

brd: module loaded

loop: module loaded

S3C24XX NAND Driver, (c) 2004 Simtec Electronics

s3c24xx-nand s3c2440-nand: Tacls=3, 22ns Twrph0=7 51ns, Twrph1=3 22ns

s3c24xx-nand s3c2440-nand: NAND hardware ECC

NAND device: Manufacturer ID: 0xec, Chip ID: 0x76 (Samsung NAND 64MiB 3,3V 8-bit)

Scanning device for bad blocks

Creating 4 MTD partitions on "NAND":

0x000000000000-0x000000080000 : "Bootloader"

0x000000080000-0x000000400000 : "Kernel"

0x000000400000-0x000003400000 : "Rootfs"

0x000003400000-0x000004000000 : "File System"

ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

s3c2410-ohci s3c2410-ohci: S3C24XX OHCI

s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1

s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 2 ports detected

usbcore: registered new interface driver libusual

s3c2440-usbgadget s3c2440-usbgadget: S3C2440: increasing FIFO to 128 bytes

g_ether gadget: using random self ethernet address

g_ether gadget: using random host ethernet address

usb0: MAC 2e:f5:68:f5:67:59

usb0: HOST MAC 0e:70:82:ff:d8:95

g_ether gadget: Ethernet Gadget, version: Memorial Day 2008

g_ether gadget: g_ether ready

mousedev: PS/2 mouse device common for all mice

S3C24XX RTC, (c) 2004,2006 Simtec Electronics

s3c-rtc s3c2410-rtc: rtc disabled, re-enabling

s3c-rtc s3c2410-rtc: rtc core: registered s3c as rtc0

S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics

s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled

TCP cubic registered

Initializing XFRM netlink socket

NET: Registered protocol family 17

NET: Registered protocol family 15

Registering the dns_resolver key type

s3c-rtc s3c2410-rtc: setting system clock to 2000-01-01 00:34:00 UTC (946686840)

g_ether gadget: full speed config #1: CDC Ethernet (ECM)

IP-Config: Complete:

     device=usb0, addr=192.168.1.2, mask=255.255.255.0, gw=192.168.1.1,

     host=192.168.1.2, domain=, nis-domain=(none),

     bootserver=192.168.1.1, rootserver=192.168.1.1, rootpath=

VFS: Mounted root (nfs filesystem) on device 0:12.

Freeing init memory: 136K <----------- 여기서 멈춰서 넘어가지가 않네요.

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비슷한 문제를 경험하신 분이나 아시는 분 계시면 조언 부탁드립니다.

그리고 s3c2440이나 s3c2443에서 사용할 수있는 루트 파일 시스템은 어디서 구할 수 있나요?

감사합니다.