Here's more data.
kernel command line: noinitrd console=ttymxc0,115200n8 root=/dev/nfs rw nfsroot=192.168.100.149:/opt/imx2/romfs ip=192.168.100.116:192.168.100.149:192.168.100.1
% ls -l romfs/dev
crw-rw-rw- 1 root root 5, 1 2009-03-15 16:37 console
crw-rw-rw- 1 root root 5, 2 2009-03-16 22:32 ptmx
drwxr-xr-x 2 root root 4096 2009-03-14 13:59 pts
brw-rw-rw- 1 root root 1, 0 2009-03-15 21:03 ram0
brw-rw-rw- 1 root root 1, 1 2009-03-15 21:03 ram1
crw-rw-rw- 1 root root 4, 0 2009-03-22 15:34 tty0
crw-rw-rw- 1 root root 4, 1 2009-03-22 15:34 tty1
crw-rw-rw- 1 root root 207, 16 2009-03-17 21:10 ttymxc0
crw-rw-rw- 1 root root 3, 0 2009-03-22 15:35 ttyp0
crw-rw-rw- 1 root root 3, 1 2009-03-22 15:35 ttyp1
My nfs server is setup correctly. I'm able to mount from a different device (just mounting, not using nfsroot).
My libs are all in the right place.
Here is the bootup:
ATAG_CORE1, 4096, 255, 4, 1413545986, Uncompressing Linux......................
Linux version 2.6.22.6 (cherice@Asentria) (gcc version 4.2.1) #24 PREEMPT Mon 9
CPU: ARM926EJ-S [41069264] revision 4 (ARMv5TEJ), cr=00053177
Machine: Freescale i.MX27ADS
Memory policy: ECC disabled, Data cache writeback
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
CPU0: D cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
Built 1 zonelists. Total pages: 32512
Kernel command line: noinitrd console=ttymxc0,115200n8 root=/dev/nfs rw nfsroo1
MXC IRQ initialized
PID hash table entries: 512 (order: 9, 2048 bytes)
MXC GPT timer initialized, rate = 13300000
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 128MB = 128MB total
Memory: 126836KB available (2720K code, 244K data, 112K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
AIPI VA base: 0xd4000000
CPU is i.MX27 Revision 2.0
Clock input source is 26000000
MXC GPIO hardware
Generic PHY: Registered new driver
SCSI subsystem initialized
CSPI: mxc_spi-0 probed
CSPI: mxc_spi-1 probed
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
MXC I2C driver
NET: Registered protocol family 2
Time: mxc_gpt clocksource has been installed.
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
usb: Host 1 host (serial) registered
usb: OTG host (isp1301) registered
usb: OTG gadget (isp1301) registered
JFFS2 version 2.2. (NAND) ?© 2001-2006 Red Hat, Inc.
yaffs Mar 21 2009 14:19:59 Installing.
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
MXC WatchDog Driver 2.0
MXC Watchdog # 0 Timer: initial timeout 60 sec
Serial: MXC Internal UART driver
mxcintuart.0: ttymxc0 at MMIO 0x1000a000 (irq = 20) is a Freescale MXC
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: module loaded
SMSC LAN83C185: Registered new driver
FEC ENET Version 0.2
fec: PHY @ 0x0, ID 0x7fffffff -- unknown PHY!
eth0: ethernet 00:08:ee:01:f7:d6
MXC MTD nor Driver 2.0
mxc_nor_flash.0: Found 1 x16 devices at 0x0 in 16-bit bank
Intel/Sharp Extended Query Table at 0x0035
cfi_cmdset_0001: Erase suspend on write enabled
Searching for RedBoot partition table in mxc_nor_flash.0 at offset 0x1f0000
No RedBoot partition table detected in mxc_nor_flash.0
Creating 2 MTD partitions on "mxc_nor_flash.0":
0x00000000-0x00040000 : "LoLo Bootloader"
0x00040000-0x00050000 : "Bootloader config"
MXC MTD nand Driver 2.0
NAND device: Manufacturer ID: 0x20, Chip ID: 0x76 (ST Micro NAND 64MiB 3,3V 8-)
Scanning device for bad blocks
Searching for RedBoot partition table in NAND 64MiB 3,3V 8-bit at offset 0x3ff0
No RedBoot partition table detected in NAND 64MiB 3,3V 8-bit
Creating 4 MTD partitions on "NAND 64MiB 3,3V 8-bit":
0x00000000-0x02000000 : "NAND RootFS"
0x00000000-0x04000000 : "<NULL>"
0x00000000-0x04000000 : "<NULL>"
0x00000000-0x04000000 : "<NULL>"
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mxc_rtc mxc_rtc.0: rtc core: registered mxc_rtc as rtc0
No external RTC clock
Real TIme clock Driver v1.0
mxc_rtc: probe of mxc_rtc.0 failed with error -2
i2c /dev entries driver
SSI module loaded successfully
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
ieee80211: 802.11 data/management/control stack, git-1.1.13
ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>
platform mxc_rtc.0: setting the system clock to 1970-01-01 00:02:27 (147)
IP-Config: Guessing netmask 255.255.255.0
IP-Config: Complete:
device=eth0, addr=192.168.100.116, mask=255.255.255.0, gw=192.168.100.1,
host=192.168.100.116, domain=, nis-domain=(none),
bootserver=192.168.100.149, rootserver=192.168.100.149, rootpath=
Looking up port of RPC 100003/2 on 192.168.100.149
Looking up port of RPC 100005/1 on 192.168.100.149
VFS: Mounted root (nfs filesystem).
Start of Init_post
Freeing init memory: 112K
Ready to open initial console
Ready to kick off userland init
Running <NULL>
Can't run command line prog
Trying /sbin/init
Trying /etc/init
Trying /bin/init
This is basically the same exact setup I use for another processor for a different project. All I've done is substitute in the 2.6.22 kernel and patch and build everything little-endian instead of big-endian.