Questions of uImage on sbc8260 board
The uImage is loaded onto RAM of sbc8260/ATM board. After starting the uImage, the msg shows:
=>bootm
## Booting image at 00100000 ...
Image Name: Linux-2.4.24-pre2 Created: 2004-12-03 0:48:37 UTC Image Type: PowerPC Linux Kernel Image (gzip
compressed)
Data Size: 632448 Bytes = 617.6 kB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
## Current stack ends at 0x03F75B60 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF00
bd address = 0x03F75FB4 memstart = 0x00000000 memsize = 0x04000000 flashstart = 0x40000000 flashsize = 0x00400000 flashoffset = 0x00025000 sramstart = 0x00000000 sramsize = 0x00000000 immr_base = 0xF0000000 bootflags = 0x00000001 vco = 264 MHz sccfreq = 66 MHz brgfreq = 66 MHz intfreq = 198 MHz cpmfreq = 132 MHz busfreq = 33 MHz ethaddr = 00:A0:1E:A8:7B:CB IP addr = 10.0.0.99 baudrate = 115200 bps
No initrd
## Transferring control to Linux (at address 00000000)
...
Memory BAT mapping: BAT2=64Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.24-pre2 (root at localhost.localdomain) (gcc version 3.2.2 20030217 (Yellow Dog Linux 3.0 3.2.2-2a_1)) #1 Thu Dec 2 19:38:30 EST 2004
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line:
Warning: real time clock seems stuck! <<-- ???
Calibrating delay loop... 131.89 BogoMIPS
Memory: 63220k available (1096k kernel code, 384k data, 56k init, 0k highmem)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.
CPM UART driver version 0.01
ttyS0 on SMC1 at 0x0000, BRG7
ttyS1 on SMC2 at 0x0040, BRG8
ttyS2 on SCC1 at 0x8000, BRG1
ttyS3 on SCC2 at 0x8100, BRG2
pty: 256 Unix98 ptys configured
eth0: FCC2 ENET Version 0.4, 00:A0:1E:A8:7B:CC RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
CFI: Found no TQM8260 Bank 0 device@location zero
<<--??
TQM8260: No supported flash chips found! <<-- ??
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Cannot open root device "" or 00:00 <<--?? Please append a correct "root=" boot option <<--??
Kernel panic: VFS: Unable to mount root fs on 00:00
<<--??
<0>Rebooting in 180 seconds..
Then, system hung.
The u-boot envs are:
=> printenv
bootcmd=version;echo;bootp;setenv bootargs
root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;bootm bootdelay=5
baudrate=9600
ethaddr=00:a0:1e:a8:7b:cb
loads_echo=1
do_echo=1
ipaddr=10.0.0.99
serverip=10.0.0.2
netmask=255.0.0.0
hostname=sbc8260
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 1.0.2 (Nov 27 2004 - 10:55:29)
Environment size: 392/262140 bytes
The uImage is build by using TQM8260_config.
Q1. Can the uImage build by using TQM8260_config can be used on sbc8260 board? If can not, which config I should use?
Q2. I marked several places above by "<<--??". Any one see those before? If you do, please let me know how to fix them.
Thanks,
dd
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Quoted 2 lines · In message <[email protected]> you wrote:
The uImage is loaded onto RAM of sbc8260/ATM board. After starting the uImage, the msg shows:
You're off topic here. This is the U-Boot mailing list. There are other lists for Linux.
Quoted 1 line
Warning: real time clock seems stuck! <<-- ???
Your real time clock does not tick.
Quoted 4 lines
CFI: Found no TQM8260 Bank 0 device at location zero <<--??
TQM8260: No supported flash chips found! <<-- ??
You're using a TQM8260 configuration on a non-TQM8260 board. This cannot work.
Quoted 4 lines
VFS: Cannot open root device "" or 00:00 <<--?? Please append a correct "root=" boot option <<--??
Kernel panic: VFS: Unable to mount root fs on 00:00<<--??
You passed an empty (or blank-filled?) command line, so how should the kernel know where to find the root filesystem?
Quoted 4 lines
=> printenv
bootcmd=version;echo;bootp;setenv bootargs
root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;bootm
This makes no sense at all. Commands are execurted in order. SO you first boot the linux kernel (bootp), and then try to set bootargs - but the "then" will never happen as U-Boot dows not continue to run after Linux took over.
OK, so we finally got some U-Boot stuff here, and you are not completely off topic ;-)
Quoted 3 lines
Q1. Can the uImage build by using
TQM8260_configcan be used on sbc8260 board? If can not, which config I should use?
Of course you can build an uImage using the TQM8260 configuration. But this uImage will only be useful for TQM8260 boards. You must not assume that it might run on any other hardware.
Quoted 3 lines
Q2. I marked several places above by "<<--??". Any one see those before? If you do, please let me know how to fix them.
See above.
Best regards,
Wolfgang Denk
Signature · 8 lines
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Software entities are more complex for their size than perhaps any
other human construct because no two parts are alike. If they are, we
make the two similar parts into a subroutine -- open or closed. In
this respect, software systems differ profoundly from computers,
buildings, or automobiles, where repeated elements abound.
- Fred Brooks, Jr.Quoted 2 lines · duo dong
Warning: real time clock seems stuck! <<-- ???
This is normal for the sbc8260 and sbc8260ATM - there is no real-time clock chip on board. Don't worry about it.
Quoted 6 lines
CFI: Found no TQM8260 Bank 0 device at location zero <<--??
TQM8260: No supported flash chips found! <<-- ??
Your using a build for the wrong board. There is a working build for the SBC8260 which should work for the ATM version.
Quoted 5 lines
VFS: Cannot open root device "" or 00:00 <<--?? Please append a correct "root=" boot option <<--??
Kernel panic: VFS: Unable to mount root fs on 00:00<<--??
You need to specify a valid boot line to tell the kernel to use NFS for the root file system.
Quoted 6 lines
The uImage is build by using
TQM8260_config.Q1. Can the uImage build by using
TQM8260_configcan be used on sbc8260 board? If can not, which config I should use?
Use the sbc8260_config. You may need to edit the sbc8260.h file for you clock settings, etc.
Quoted 4 lines
Q2. I marked several places above by "<<--??". Any one see those before? If you do, please let me know how to fix them.
See comments above.
If you need more help then let me know. I don't have an SBC8260ATM to hand today, but I can get one.
Rich
Thanks for you and Wolfgong's help.
Now I can just skip the msg of real time clock.
I made some changes of config file and the linux
starts booting without FLASH error msgs.
1. NFS
Quoted 7 lines
Quoted 3 lines
VFS: Cannot open root device "" or 00:00 <<--?? Please append a correct "root=" boot option <<--??
Kernel panic: VFS: Unable to mount root fs on00:00
You need to specify a valid boot line to tell the
kernel to use NFS for
the root file system.
Do I have to use NFS to boot ? My server has problem and I'm using serial port only now. Is there another way to avoid using server? If I can, what steps I should follow?
2. I'm trying to use ramdisk because the server is off and get errors. The kernel is build with reamdisk and loaded into RAM.
The envs are as:
=> printenv
bootdelay=5
ethaddr=00:a0:1e:a8:7b:cb
loads_echo=1
do_echo=1
ipaddr=10.0.0.99
serverip=10.0.0.2
netmask=255.0.0.0
hostname=SBC8260
rootpath=/opt/ELDK/ppc_82xx
bootcmd=bootp
filesize=1E661A
bootargs=boot=/dev/ram rw
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 1.0.2 (Nov 27 2004 - 10:55:29)
baudrate=57600
3. => bootm
## Booting image at 00400000 ...
Image Name: Linux Multiboot-Image Created: 2004-12-07 18:20:37 UTC Image Type: PowerPC Linux Multi-File Image (gzip
compressed)
Data Size: 1992154 Bytes = 1.9 MB
Load Address: 00000000
Entry Point: 00000000
Contents:
Image 0: 591944 Bytes = 578.1 kB
Image 1: 1400198 Bytes = 1.3 MB Verifying Checksum ... OK
Uncompressing Multi-File Image ... OK
## Current stack ends at 0x03F75B60 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF10
bd address = 0x03F75FB4 memstart = 0x00000000 memsize = 0x04000000 flashstart = 0x40000000 flashsize = 0x00400000 flashoffset = 0x00025000 sramstart = 0x00000000 sramsize = 0x00000000 immr_base = 0xF0000000 bootflags = 0x00000001 vco = 264 MHz sccfreq = 66 MHz brgfreq = 66 MHz intfreq = 198 MHz cpmfreq = 132 MHz busfreq = 33 MHz ethaddr = 00:A0:1E:A8:7B:CB IP addr = 10.0.0.99 baudrate = 57600 bps
## initrd at 0x00490894 ... 0x005E6619 (len=1400198=0x155D86)
Loading Ramdisk to 03e1f000, end 03f74d86 ... OK
## Transferring control to Linux (at address 00000000)
...
Memory BAT mapping: BAT2=64Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.24-pre2 (root at localhost.localdomain) (gcc version 3.2.2 20030217 (Yellow Dog Linux 3.0 3.2.2-
2a_1)) #1 Sun Dec 5 14:04:57 EST 2004
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: boot=/dev/ram rw Calibrating delay loop... 131.89 BogoMIPS
Memory: 61928k available (1028k kernel code, 376k data, 56k init, 0k highmem)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
CPM UART driver version 0.01
ttyS0 on SMC1 at 0x0000, BRG7
ttyS1 on SMC2 at 0x0040, BRG8
ttyS2 on SCC1 at 0x8000, BRG1
ttyS3 on SCC2 at 0x8100, BRG2
pty: 256 Unix98 ptys configured
eth0: FCC2 ENET Version 0.4, 00:A0:1E:A8:7B:CC RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Compressed image found at block 0
crc error<6>Freeing initrd memory: 1367k freed <<--??
VFS: Cannot open root device "" or 00:00 <<-- Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 00:00
<<--
<0>Rebooting in 180 seconds..
4. I did not rebuild the ramdisk image, just use the one from SELF. Do I need rebuild it?
Thanks again,
dd
--- Richard Danter <[email protected]>
Quoted 52 lines · wrote:
Quoted 2 lines · duo dong
Warning: real time clock seems stuck! <<-- ???
This is normal for the sbc8260 and sbc8260ATM -
there is no real-time
clock chip on board. Don't worry about it.Quoted 3 lines
CFI: Found no TQM8260 Bank 0 device at location
zero
Quoted 3 lines
<<--??
TQM8260: No supported flash chips found! <<-- ??
Your using a build for the wrong board. There is a working build for the
SBC8260 which should work for the ATM version.Quoted 4 lines
VFS: Cannot open root device "" or 00:00 <<--?? Please append a correct "root=" boot option <<--??
Kernel panic: VFS: Unable to mount root fs on00:00
Quoted 1 line
<<--??
You need to specify a valid boot line to tell the
kernel to use NFS for
the root file system.Quoted 4 lines
The uImage is build by using
TQM8260_config.Q1. Can the uImage build by using
TQM8260_configcan
Quoted 1 line
be used on sbc8260 board? If can not, which config
I
Quoted 1 line
should use?
Use the
sbc8260_config. You may need to edit thesbc8260.hfile for you
clock settings, etc.Quoted 2 lines
Q2. I marked several places above by "<<--??". Any
one
Quoted 1 line
see those before? If you do, please let me know
how to
Quoted 1 line
fix them.
Quoted 9 lines
See comments above.
If you need more help then let me know. I don't have an SBC8260ATM to
hand today, but I can get one.Rich
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Quoted 3 lines · In message <[email protected]> you wrote:
I made some changes of config file and the linux
starts booting without FLASH error msgs.
Please take this discussion off this list. It has nothing to do with U-Boot and is off topic here.
Best regards,
Wolfgang Denk
Signature · 4 lines
Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de The IQ of the group is the lowest IQ of a member of the group divided by the number of people in the group.
Quoted 7 lines · duo dong
1. NFS
Do I have to use NFS to boot ? My server has problem and I'm using serial port only now. Is there another way to avoid using server? If I can, what steps I should follow?
No, you do not _have_ to use NFS, but it is a lot easier than using a RAMDISK when your developing apps.
Quoted 4 lines
2. I'm trying to use ramdisk because the server is off and get errors. The kernel is build with reamdisk and loaded into RAM.
How exactly are you loading the kernel/ramdisk image?
Quoted 4 lines
3. => bootm
## Booting image at 00400000 ...
Image Name: Linux Multiboot-Image
<snip>
Quoted 2 lines
RAMDISK: Compressed image found at block 0 crc error<6>Freeing initrd memory: 1367k freed <<--??
I'm not sure what is causing this, was the image corrupted when you downloaded? Maybe someone else can help us here..?
Quoted 2 lines
VFS: Cannot open root device "" or 00:00 <<-- Please append a correct "root=" boot option
Your boot options should have root=/dev/ram0
Quoted 6 lines
Kernel panic: VFS: Unable to mount root fs on 00:00<<--
<0>Rebooting in 180 seconds..4. I did not rebuild the ramdisk image, just use the one from SELF. Do I need rebuild it?
I used one of the Denx ramdisks with no problems and didn't need to rebuild anything. I didn't build a unified kernel/ramdisk image though, I just loaded the kernel and then the example ramdisk unchanged. Try that.
Rich
Sorry all, didn't mean to reply to the whole list.
Rich
Quoted 68 lines · Richard Danter
Quoted 6 lines · duo dong
1. NFS
Do I have to use NFS to boot ? My server has problem and I'm using serial port only now. Is there another way to avoid using server? If I can, what steps I should follow?No, you do not _have_ to use NFS, but it is a lot easier than using a RAMDISK when your developing apps.
Quoted 4 lines
2. I'm trying to use ramdisk because the server is off and get errors. The kernel is build with reamdisk and loaded into RAM.
How exactly are you loading the kernel/ramdisk image?
Quoted 4 lines
3. => bootm
## Booting image at 00400000 ...
Image Name: Linux Multiboot-Image<snip>
Quoted 2 lines
RAMDISK: Compressed image found at block 0 crc error<6>Freeing initrd memory: 1367k freed <<--??
I'm not sure what is causing this, was the image corrupted when you downloaded? Maybe someone else can help us here..?
Quoted 2 lines
VFS: Cannot open root device "" or 00:00 <<-- Please append a correct "root=" boot option
Your boot options should have root=/dev/ram0
Quoted 6 lines
Kernel panic: VFS: Unable to mount root fs on 00:00<<--
<0>Rebooting in 180 seconds..4. I did not rebuild the ramdisk image, just use the one from SELF. Do I need rebuild it?
I used one of the Denx ramdisks with no problems and didn't need to rebuild anything. I didn't build a unified kernel/ramdisk image though, I just loaded the kernel and then the example ramdisk unchanged. Try that.
Rich
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Quoted 2 lines
How exactly are you loading the kernel/ramdisk
image?
This time, I loaded the uImage to 100000 and pRamdis to 200000. The boot code transfers control to Linux as following:
## Transferring control to Linux (at address 00000000)
...
Memory BAT mapping: BAT2=64Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.24-pre2 (root at localhost.localdomain) (gcc version 3.2.2 20030217 (Yellow Dog Linux 3.0 3.2.2-2a_1)) #1 Sun Dec 5 14:04:57 EST 2004
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/ram0 rw
Warning: real time clock seems stuck! Calibrating delay loop... 131.89 BogoMIPS
Memory: 61928k available (1028k kernel code, 376k data, 56k init, 0k highmem)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
CPM UART driver version 0.01
ttyS0 on SMC1 at 0x0000, BRG7
ttyS1 on SMC2 at 0x0040, BRG8
ttyS2 on SCC1 at 0x8000, BRG1
ttyS3 on SCC2 at 0x8100, BRG2
pty: 256 Unix98 ptys configured
eth0: FCC2 ENET Version 0.4, 00:A0:1E:A8:7B:CC RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Compressed image found at block 0
Quoted 7 lines
Quoted 2 lines
RAMDISK: Compressed image found at block 0
crc error<6>Freeing initrd memory: 1367k freed<<--??
I'm not sure what is causing this, was the image corrupted when you
downloaded? Maybe someone else can help us here..?
The crc error is still there as:
RAMDISK: Compressed image found at block 0
crc error<6>Freeing initrd memory: 1367k freed
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 56k init
Then, system stuck.
Someoen can help on this?? please!!
Quoted 1 line
boot=/dev/ram rw.
Thanks, I made a mistake, it should be root=/dev/ram0 rw, not boot=/...
Sorry I response too late. I have another project on hand, so I can only work on this one couple hours a day.
dd
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Quoted 2 lines · In message <[email protected]> you wrote:
This time, I loaded the uImage to 100000 and pRamdis
...
I think I told you before: this is the U-Boot mailing list, and general Linux questions are OFF TOPIC here.
Best regards,
Wolfgang Denk
Signature · 4 lines
Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de "Never give in. Never give in. Never. Never. Never." - Winston Churchill
Le 3 D?cembre 2004 00:45, duo dong a ?crit :
Quoted 4 lines
VFS: Cannot open root device "" or 00:00 <<--?? Please append a correct "root=" boot option <<--??
Kernel panic: VFS: Unable to mount root fs on 00:00<<--??
That ain't good ;)
Quoted 11 lines
<0>Rebooting in 180 seconds..
The u-boot envs are:
=> printenv
bootcmd=version;echo;bootp;setenv bootargs
root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;bootm bootdelay=5
baudrate=9600
ethaddr=00:a0:1e:a8:7b:cb
loads_echo=1
do_echo=1
Quoted 8 lines
ipaddr=10.0.0.99
serverip=10.0.0.2
netmask=255.0.0.0
hostname=sbc8260
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 1.0.2 (Nov 27 2004 - 10:55:29)
you don't have any "bootargs" setup!! this might be it
Quoted 3 lines
Q2. I marked several places above by "<<--??". Any one see those before? If you do, please let me know how to fix them.
If I understand correctly your problem, it is quite simple actually. You need a variable "bootargs" to be passed to the kernel... you could do something like that:
setenv console=ttyS0,9600 ip=$(ipaddr) root=$(root)
type that and with your u-boot settings, it should work.
good luck
Rapha?l