Wolfgang, Thank you for your response. Boot parameter I'm using is the following. bootargs=root=/dev/ram rw ramdisk_size=8192 console=ttyS0,115200 console=tty0 ip=192.168.1.157:192.168.1.86:192.168.1.2:255.255.255.0:DevUSB::off
It is the same bootarg that I used when using U-Boot 1.0.0. I left the other environment variable as default. They are different than my old system but I do not see why they would make a difference. The linux kernel and the ramdisk image are programmed on the flash at ffc00000 and ffd00000 respectively. When I run the kernel as I usually do, it just locks up after uncompressing the images. I tried defining and undefining CONFIG_OF_LIBFDT and they both behave the same way.
Below is the serial port capture of U-Boot 1.3.3 running on our old target. Only U-Boot has been updated. Any help will be appreciated.
Thanks
Brian
=> printenv bootcmd=run net_nfs bootdelay=5 baudrate=115200 loads_echo=1 ethaddr=00:04:ac:e3:14:87 ipaddr=192.168.1.157 serverip=192.168.1.86 autoload=no preboot=echo;echo Type "run flash_nfs" to mount root filesystem over NFS;echo gatewayip=192.168.1.2 netmask=255.255.255.0 netdev=eth0 hostname=DevUSB nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} ramargs=setenv bootargs root=/dev/ram rw addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off panic=1 addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate} flash_nfs=run nfsargs addip addtty;bootm ${kernel_addr} flash_self=run ramargs addip addtty;bootm ${kernel_addr} ${ramdisk_addr} net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;bootm rootpath=/opt/eldk/ppc_4xx bootfile=uImage kernel_addr=ffc00000 ethact=ppc_4xx_eth0 bootargs=root=/dev/ram rw ramdisk_size=8192 console=ttyS0,115200 console=tty0 ip=192.168.1.157:192.168.1.86:192.168.1.2:255.255.255.0:DevUSB::off stdin=serial stdout=serial stderr=serial ver=U-Boot 1.3.3 (Jun 12 2008 - 13:01:38)
Environment size: 1091/8187 bytes => imi ffc00000
## Checking Image at ffc00000 ... Legacy image found Image Name: Linux-2.4.20 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 559824 Bytes = 546.7 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK => imi ffd00000
## Checking Image at ffd00000 ... Legacy image found Image Name: Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 1967920 Bytes = 1.9 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK => bootm ffc00000 ffd00000 ## Booting kernel from Legacy Image at ffc00000 ... Image Name: Linux-2.4.20 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 559824 Bytes = 546.7 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK ## Loading init Ramdisk from Legacy Image at ffd00000 ... Image Name: Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 1967920 Bytes = 1.9 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Loading Ramdisk to 07dab000, end 07f8b730 ... OK
At 11:45 PM 6/11/2008, Wolfgang Denk wrote:
Dear Brian,
in message 200806120104.m5C148Yk019956@mail.corelis.com you wrote:
I'm trying to get the latest U-Boot 1.3.3 and Linux (any version) working on our custom board based on Walnut demo board. I have used U-Boot 1.0.0 and Linux 2.4.20 on our other similar board and that worked out well. However, a lot seems to have changed since then.
Indeed, these versions are really old. Must have been already used by the Troglodytes or so.
- U-Boot 1.3.3 works. But it does not boot the old Linux image or
Linux 2.4.25 (latest 2.4?) compiled using ELDK 4.1
It should boot them just fine. What exacl;y are the commands you are using, what your environment settings / boot areguments, and what the error messages?
- U-Boot 1.0.0 boots Linux 2.4.25 (latest 2.4?) compiled using ELDK 4.1.
Then I found out that the kernel parameter passing has changed and I
No, not really. Only when you call for it.
should use powerpc architecture instead of ppc. But Linux 2.4.25 does not have powerpc architecture. So, I'm now trying 2.6 kernel. Using linux-2.6-latest.tar.bz2 from ftp://ftp.denx.de/pub/linux/. However,
Forget about FTP. Please use git instead. If you really want, you can use the snapshot feature of the web interface to download a tarball (but using real git is stongly preferred).
the powerpc architecture does not have walnut.c for configuring the board. I need to customize it since our custom board does not have FPGA.
Recent versions do have support for the walnut board. Please ignore the FTP server and download the current code from the git repository.
What's the best way to build linux kernel that works on U-Boot 1.3.3?
Again: U-Boot 1.3.3 will boot your old 2.4 kernel just fine.
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de "No matter where you go, there you are..." - Buckaroo Banzai
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