Hi all, I try to mount NFS filesystem onto my AT91RM9200DK board, But the eth0 device failed, from the boot message it looks that I didn't set the MAC addr: at91_ether: Your bootloader did not configure a MAC address. eth0: Link now 100-FullDuplex eth0: AT91 ethernet at 0xfefbc000 int=24 100-FullDuplex (00:00:00:00:00:00) ---------------------------------------------------------------------------- But I've set it in the U-Boot env: ---------------------------------------------------------------------------- U-Boot> printenv bootdelay=3 baudrate=115200 serverip=192.168.0.182 ipaddr=192.168.0.66 netmask=255.255.255.0 ethaddr=00:10:ec:00:87:73 bootargs=root=/dev/nfs rw nfsroot=${serverip}:${rootpath} ip=${ipaddr}:${serveri p}:${gatewayip}:${netmask}:${hostname}::off rootpath=/opt/eldk_arm/arm hostname=mqy gatewayip=192.168.0.182 bootfile=/tftpboot/uImage bootcmd=bootm 10080000 ok=ok stdin=serial stdout=serial stderr=serial
Environment size: 403/65532 bytes U-Boot> --------------------------------------------------------------------------- And this is full boot message ---------------------------------------------------------------------------- -
U-Boot 1.1.4 (May 29 2006 - 18:53:58)
DRAM: 32 MB Atmel: ATM_ID_BV322DT (32Mbit) Flash: 4 MB In: serial Out: serial Err: serial U-Boot 1.1.4 (May 29 2006 - 18:53:58)
DRAM: 32 MB Atmel: ATM_ID_BV322DT (32Mbit) Flash: 4 MB In: serial Out: serial Err: serial Hit any key to stop autoboot: 0 ## Booting image at 10080000 ... Image Name: Linux-2.6.16 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1103380 Bytes = 1.1 MB Load Address: 20008000 Entry Point: 20008000 Verifying Checksum ... OK OK
Starting kernel ...
Uncompressing Linux............................................................. ............. done, booting the kernel. Linux version 2.6.16 (root@second) (gcc version 4.0.0 (DENX ELDK 4.0 4.0.0)) #16 Thu Jun 8 03:40:10 AQTT 2006 CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T) Machine: Atmel AT91RM9200-DK Memory policy: ECC disabled, Data cache writeback Clocks: CPU 179 MHz, master 59 MHz, main 18.432 MHz CPU0: D VIVT write-back cache CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets Built 1 zonelists Kernel command line: root=/dev/nfs rw nfsroot=${serverip}:${rootpath} ip=${ipadd r}:${serverip}:${gatewayip}:${netmask}:${hostname}::off AT91: 128 gpio irqs in 4 banks PID hash table entries: 256 (order: 8, 4096 bytes) Console: colour dummy device 80x30 Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 32MB = 32MB total Memory: 30044KB available (1844K code, 402K data, 92K init) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok NET: Registered protocol family 16 usbcore: registered new driver usbfs usbcore: registered new driver hub NetWinder Floating Point Emulator V0.97 (double precision) Initializing Cryptographic API io scheduler noop registered io scheduler anticipatory registered (default) AT91 Real Time Clock driver. AT91 SPI driver loaded AT91 Watchdog Timer enabled (5 seconds, nowayout=1) at91_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a AT91_SERIAL at91_usart.1: ttyS1 at MMIO 0xfffc4000 (irq = 7) is a AT91_SERIAL RAMDISK driver initialized: 16 RAM disks of 32768K size 1024 blocksize at91_ether: Your bootloader did not configure a MAC address. eth0: Link now 100-FullDuplex eth0: AT91 ethernet at 0xfefbc000 int=24 100-FullDuplex (00:00:00:00:00:00) eth0: Davicom 9196 PHY (Copper) physmap flash device: 200000 at 10000000 phys_mapped_flash: Found 1 x16 devices at 0x0 in 16-bit bank Amd/Fujitsu Extended Query Table at 0x0041 phys_mapped_flash: CFI does not contain boot bank location. Assuming top. number of CFI chips: 1 cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness. RedBoot partition parsing not available at91_cf: irqs det #64, io #0 at91_ohci at91_ohci: AT91 OHCI at91_ohci at91_ohci: new USB bus registered, assigned bus number 1 at91_ohci at91_ohci: irq 23, io mem 0x00300000 usb usb1: Product: AT91 OHCI usb usb1: Manufacturer: Linux 2.6.16 ohci_hcd usb usb1: SerialNumber: at91 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected udc: at91_udc version 8 March 2005 mice: PS/2 mouse device common for all mice i2c /dev entries driver at91_i2c at91_i2c: AT91 i2c bus driver. NET: Registered protocol family 2 IP route cache hash table entries: 512 (order: -1, 2048 bytes) TCP established hash table entries: 2048 (order: 1, 8192 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP reno registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 IP-Config: Failed to open eth0 IP-Config: No network devices available. Root-NFS: No NFS server available, giving up. VFS: Unable to mount root fs via NFS, trying floppy. VFS: Cannot open root device "nfs" or unknown-block(2,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
Thanks a lot! KylongMu