Dear Allan Wang, In message <880531.39933...@web52905.mail.re2.yahoo.com> you wrote: > > Thank you for your help. My answer to your questions are between the lines. > Attached is the dts file I use.
No, there is no attachment. > Which exact version of U-Boot are you running on this board? > > => version > > U-Boot 1.1.6 (Oct 25 2009 - 13:26:41) Um... why don't you update? This is really historic stuff... > What is your exact boot command? > > I tftp the cuImage to address 0x200000 and bootm to boot. > > Which boot arguments do you pass to the kernel? > > bootargs=$(bootargs) console=ttyS0,$(baudrate) Please provide complete answers, and not only the snippets that seem important to you. For example, what is the "$(bootargs)" above? Maybe you provide a full boot log right from reset/power on, including the output of the "printenv" command on your system. > The u-boot sets it to 115.2k. the dts file is set to 115.2k. Here is the bo > ot parameter: > baudrate=115200 Arghhh.. Please provide the actual output fdrom your system, not just some parts you copy. > What does your device tree look like? > > I attached my dts file. No, it's missing. > > 2. It pakics when mounting the root file system(NFS): > > (gdb) bt > > #0 panic (fmt=0xc0290e94 "VFS: Unable to mount root fs on %s") > > So what is the "%s" argument here? Which sort of root file system are > you trying to mount - NFS, ramdisk, UBIFS, ... ? > > I try to use NFS for the root file system. Then you can also run a packet sniffer (like wireshark) to see if any NFS requests actually get sent to the targte, resp. where it stops). 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: w...@denx.de Romulan women are not like Vulcan females. We are not dedicated to pure logic and the sterility of non-emotion. -- Romulan Commander, "The Enterprise Incident", stardate 5027.3 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev