HI verybody, I have a TI 8168EVM, and i do as follows refering to the documents in DVRRDK, the serial port tools is MINICOM, after start boards, terminate the linux system, enter into the UBOOT environment to configure as follows: ( the purpose is that download the linux kernel through the TFTP , and mount the root file system with NFS )
（1）Flashing U-Boot from U-Boot （Using NAND Boot）：
mw.b 0x81000000 0xFF 0x32800;tftp 0x81000000 uboot_NAND_DM816X_EVM;nandecc hw 2;nand erase 0x0 0x240000;nand write.i 0x81000000 0x0 0x32800
（2）Flashing Linux Kernel from U-Boot （Using TFTP For flashing uImage to NAND）：
mw.b 0x81000000 0xFF 0x300000;tftp 0x81000000 uImage_DM816X_EVM;nand erase 0x00580000 0x440000;nand write.i 0x81000000 0x00580000 0x300000
（3）TFTP server is used for booting kernel, NFS is used as root filesystem：
setenv bootargs 'mem=116M console=ttyO2,115200n8 root=/dev/nfs rw nfsroot=192.168.0.153:/usr/DVRRDK_03.00.00.00/target/rfs_816x ip=192.168.0.152:192.168.0.153:192.168.0.1:255.255.255.0::eth1:off vram=20M notifyk.vpssm3_sva=0xBEE00000'
setenv bootcmd 'tftp 0x81000000 uImage_DM816X_EVM;bootm 0x81000000'
Board parameters are :
TI8168_EVM#print
baudrate=115200
verify=yes
loadaddr=0x81000000
script_addr=0x80900000
loadbootscript=fatload mmc 0 ${script_addr} boot.scr
bootscript= echo Running bootscript from MMC/SD to set the ENV...; source ${script_addr}
ethact=DaVinci EMAC
autoload=no
bootdelay=3
ethaddr=00:0c:29:23:01:89
logoreadaddr=0x81000000
hwver=0.3
bootfile=uImage-dm816x-evm.bin
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 2010.06 (Jul 29 2012 - 19:38:07)
filesize=270D80
fileaddr=81000000
gatewayip=192.168.0.1
netmask=255.255.255.0
ipaddr=192.168.0.152
serverip=192.168.0.153
bootargs=mem=116M console=ttyO2,115200n8 root=/dev/nfs rw nfsroot=192.168.0.153:/usr/DVRRDK_03.
00.00.00/target/rfs_816x ip=192.168.0.152:192.168.0.153:192.168.0.1:255.255.255.0::eth1:off vra
m=20M notifyk.vpssm3_sva=0xBEE00000
bootcmd=tftp 0x81000000 uImage_DM816X_EVM;bootm 0x81000000
Environment size: 839/8188 bytes
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
after saving the parameter, we restart the board, and it enters LINUX OS by it self, print the following information:
Net: Detected MACID:0:c:29:23:1:89
Ethernet PHY: GENERIC @ 0x01
DaVinci EMAC
Hit any key to stop autoboot: 0
Using DaVinci EMAC device
TFTP from server 192.168.0.153; our IP address is 192.168.0.152
Filename 'uImage_DM816X_EVM'.
Load address: 0x81000000
Loading: T #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#############################################
done
Bytes transferred = 2559360 (270d80 hex)
## Booting kernel from Legacy Image at 81000000 ...
Image Name: Linux-2.6.37+
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2559296 Bytes = 2.4 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.37+ (x0161644@bangvideoapps01) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-2
03) ) #1 Wed Aug 1 22:24:09 IST 2012
CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: ti8168evm
vram size = 20971520 at 0x0
reserved size = 20971520 at 0x0
FB: Reserving 20971520 bytes SDRAM for VRAM
Memory policy: ECC disabled, Data cache writeback
OMAP chip is TI8168 2.0
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 24344
Kernel command line: mem=116M console=ttyO2,115200n8 root=/dev/nfs rw nfsroot=192.168.0.153:/us
r/DVRRDK_03.00.00.00/target/rfs_816x ip=192.168.0.152:192.168.0.153:192.168.0.1:255.255.255.0::
eth1:off vram=20M notifyk.vpssm3_sva=0xBEE00000
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 96MB = 96MB total
Memory: 91752k/91752k available, 27032k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
DMA : 0xffc00000 - 0xffe00000 ( 2 MB)
vmalloc : 0x87800000 - 0xf8000000 (1800 MB)
lowmem : 0x80000000 - 0x87400000 ( 116 MB)
pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)
modules : 0x7f000000 - 0x7fe00000 ( 14 MB)
.init : 0x80008000 - 0x8003b000 ( 204 kB)
.text : 0x8003b000 - 0x804d7000 (4720 kB)
.data : 0x804d8000 - 0x80520f40 ( 292 kB)
SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:407
IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
Total of 128 interrupts on 1 active controller
GPMC revision 6.0
Trying to install interrupt handler for IRQ400
Trying to install interrupt handler for IRQ401
Trying to install interrupt handler for IRQ402
Trying to install interrupt handler for IRQ403
Trying to install interrupt handler for IRQ404
Trying to install interrupt handler for IRQ405
Trying to install interrupt handler for IRQ406
Trying to install type control for IRQ407
Trying to set irq flags for IRQ407
OMAP clockevent source: GPTIMER1 at 27000000 Hz
Console: colour dummy device 80x30
Calibrating delay loop... 986.31 BogoMIPS (lpj=4931584)
pid_max: default: 32768 minimum: 301
Security Framework initialized
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
omap_voltage_early_init: voltage driver support not added
regulator: core version 0.5
regulator: dummy:
NET: Registered protocol family 16
omap_voltage_domain_lookup: Voltage driver init not yet happened.Faulting!
omap_voltage_add_dev: VDD specified does not exist!
OMAP GPIO hardware version 0.1
OMAP GPIO hardware version 0.1
omap_mux_init: Add partition: #1: core, flags: 0
_omap_mux_get_by_name: Could not find signal i2c2_scl.i2c2_scl
_omap_mux_get_by_name: Could not find signal i2c2_sda.i2c2_sda
NOR: Can't request GPMC CS
registered ti816x_sr device
pm_dbg_init: only OMAP3 supported
registered ti81xx_vpss device
registered ti81xx_vidout device
registered ti81xx on-chip HDMI device
registered ti81xx_fb device
ti81xx_pcie: Invoking PCI BIOS...
ti81xx_pcie: Setting up Host Controller...
ti81xx_pcie: Register base mapped @0x87820000
ti81xx_pcie: Starting PCI scan...
PCI: bus0: Fast back to back transfers enabled
bio: create slab <bio-0> at 0
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
USBSS revision 4ea20809
registerd cppi-dma Intr @ IRQ 17
Cppi41 Init Done
omap_i2c omap_i2c.1: bus 1 rev4.0 at 100 kHz
omap_i2c omap_i2c.2: bus 2 rev4.0 at 100 kHz
Advanced Linux Sound Architecture Driver Version 1.0.23.
Switching to clocksource gp timer
musb-hdrc: version 6.0, host, debug=0
musb-hdrc musb-hdrc.0: dma type: dma-cppi41
MUSB controller-0 revision 4ea20800
musb-hdrc musb-hdrc.0: MUSB HDRC host driver
musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 1
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: MUSB HDRC host driver
usb usb1: Manufacturer: Linux 2.6.37+ musb-hcd
usb usb1: SerialNumber: musb-hdrc.0
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
musb-hdrc musb-hdrc.0: USB Host mode controller at 8781e000 using DMA, IRQ 18
musb-hdrc musb-hdrc.1: dma type: dma-cppi41
MUSB controller-1 revision 4ea20800
musb-hdrc musb-hdrc.1: MUSB HDRC host driver
musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 2
usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: MUSB HDRC host driver
usb usb2: Manufacturer: Linux 2.6.37+ musb-hcd
usb usb2: SerialNumber: musb-hdrc.1
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
musb-hdrc musb-hdrc.1: USB Host mode controller at 87826800 using DMA, IRQ 19
NET: Registered protocol family 2
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
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 (double precision)
PMU: registered new PMU device of type 0
omap-iommu omap-iommu.0: ducati registered
omap-iommu omap-iommu.1: sys registered
JFFS2 version 2.2. (NAND) �© 2001-2006 Red Hat, Inc.
msgmni has been set to 179
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
omap_uart.0: ttyO0 at MMIO 0x48020000 (irq = 72) is a OMAP UART0
omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
console [ttyO2] enabled
brd: module loaded
loop: module loaded
ahci ahci.0: forcing PORTS_IMPL to 0x3
ahci ahci.0: AHCI 0001.0100 32 slots 2 ports 3 Gbps 0x3 impl platform mode
ahci ahci.0: flags: ncq sntf pm led clo only pmp pio slum part ccc
scsi0 : ahci_platform
scsi1 : ahci_platform
ata1: SATA max UDMA/133 mmio [mem 0x4a140000-0x4a150fff] port 0x100 irq 16
ata2: SATA max UDMA/133 mmio [mem 0x4a140000-0x4a150fff] port 0x180 irq 16
m25p80 spi1.0: found m25p05-nonjedec, expected w25x32
m25p80 spi1.0: m25p05-nonjedec (64 Kbytes)
Creating 4 MTD partitions on "spi_flash":
0x000000000000-0x000000040000 : "U-Boot"
mtd: partition "U-Boot" extends beyond the end of device "spi_flash" -- size truncated to 0x100
00
0x000000010000-0x000000012000 : "U-Boot Env"
mtd: partition "U-Boot Env" is out of reach -- disabled
0x000000000000-0x000000280000 : "Kernel"
mtd: partition "Kernel" extends beyond the end of device "spi_flash" -- size truncated to 0x100
00
0x000000010000-0x000000010000 : "File System"
mtd: partition "File System" is out of reach -- disabled
omap2-nand driver initializing
NAND device: Maf ID: 0x2c, Chip ID: 0xca (Micron, )
erasesize: 0x20000, writesize: 2048, oobsize: 64
Creating 6 MTD partitions on "omap2-nand.0":
0x000000000000-0x000000260000 : "U-Boot"
0x000000260000-0x000000280000 : "U-Boot Env"
0x000000280000-0x000000580000 : "U-Boot Logo"
0x000000580000-0x0000009c0000 : "Kernel"
0x0000009c0000-0x00000d1e0000 : "File System"
0x00000d1e0000-0x000010000000 : "Reserved"
davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
davinci_mdio davinci_mdio.0: detected phy mask fffffff9
davinci_mdio.0: probed
davinci_mdio davinci_mdio.0: phy[1]: device 0:01, driver unknown
davinci_mdio davinci_mdio.0: phy[2]: device 0:02, driver unknown
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver dm9601
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mice: PS/2 mouse device common for all mice
omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
i2c /dev entries driver
Linux video capture interface: v2.00
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v1.0.0)
OMAP Watchdog Timer Rev 0x00: initial timeout 60 sec
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
notify_init : notify drivercreated for remote proc id 2 at physical Address 0xbee00000
usbcore: registered new interface driver snd-usb-audio
Registered tvp5158 audio codec
asoc: tvp5158-hifi <-> davinci-mcasp.0 mapping ok
asoc: tlv320aic3x-hifi <-> davinci-mcasp.2 mapping ok
asoc: HDMI-DAI-CODEC <-> hdmi-dai mapping ok
ALSA device list:
#0: TI81XX EVM
TCP cubic registered
NET: Registered protocol family 17
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
omap_voltage_late_init: Voltage driver support not added
Power Management for TI81XX.
smartreflex-ti816x: ti816x_sr_probe done!
omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
net eth1: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:02, id=282f014)
IP-Config: Complete:
device=eth1, addr=192.168.0.152, mask=255.255.255.0, gw=192.168.0.1,
host=192.168.0.152, domain=, nis-domain=(none),
bootserver=192.168.0.153, rootserver=192.168.0.153, rootpath=
ata2: SATA link down (SStatus 0 SControl 300)
ata1: SATA link down (SStatus 0 SControl 300)
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; here are the available partitions:
1f00 64 mtdblock0 (driver?)
1f02 64 mtdblock2 (driver?)
1f04 2432 mtdblock4 (driver?)
1f05 128 mtdblock5 (driver?)
1f06 3072 mtdblock6 (driver?)
1f07 4352 mtdblock7 (driver?)
1f08 204928 mtdblock8 (driver?)
1f09 47232 mtdblock9 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
Backtrace:
[<80049b7c>] (dump_backtrace+0x0/0x10c) from [<8039a3f0>] (dump_stack+0x18/0x1c)
r7:85bf8000 r6:00000000 r5:8002e874 r4:80521750
[<8039a3d8>] (dump_stack+0x0/0x1c) from [<8039a454>] (panic+0x60/0x17c)
[<8039a3f4>] (panic+0x0/0x17c) from [<80009254>] (mount_block_root+0x1e0/0x220)
r3:00000000 r2:00000000 r1:85825f58 r0:804587ec
[<80009074>] (mount_block_root+0x0/0x220) from [<80009340>] (mount_root+0xac/0xcc)
[<80009294>] (mount_root+0x0/0xcc) from [<800094d0>] (prepare_namespace+0x170/0x1d4)
r4:80520fa4
[<80009360>] (prepare_namespace+0x0/0x1d4) from [<80008784>] (kernel_init+0x114/0x154)
r5:80008670 r4:80520f40
[<80008670>] (kernel_init+0x0/0x154) from [<80070ae8>] (do_exit+0x0/0x5e4)
r5:80008670 r4:00000000
Error occurred
how to solve?? Master for help!!
thanks
