Sorry, i have no ideas where your problem is related. At the start i was thinking this could be the memory related problem, but apperantly not... Maybe someone in this list will have similar experience.
Kind regards, Andrejs Cainikovs Batsayan Das wrote: > Hello, > > We are using arm926ejs based custom board. > We are able to get u-boot prompt using BDI2000. We are also able to get > Linux prompt using BDI. The serial console is working fine for both the > cases. > > Now we want to run Linux from u-boot prompt (using bootm ). We got the > u-boot prompt by running u-boot using BDI2K. Then we use kermit to > transfer uImage to suitable memory location and execute bootm command. > > When we execute "bootm 0x5000000" command it gives the "Starting kernel > ...". After that nothing is printed in the serial console. We have > verified "http://www.denx.de/wiki/view/DULG/LinuxPostMortemAnalysis"; that > "__log_buf" gives the exact booting sequences what we used to get when > running vmlinux.bin from BDI. > > ****LOG START****** > > TEST # loadb 0x5000000 > ## Ready for binary (kermit) download to 0x05000000 at 38400 bps... > ## Total Size = 0x0012db0f = 1235727 Bytes > ## Start Addr = 0x05000000 > TEST # bootm 0x5000000 > ## Booting kernel from Legacy Image at 05000000 ... > Image Name: TEST Kernel Image > Image Type: ARM Linux Kernel Image (gzip compressed) > Data Size: 1235663 Bytes = 1.2 MB > Load Address: 02000000 > Entry Point: 02000000 > Uncompressing Kernel Image ... OK > > Starting kernel ... > > *****LOG END***** > > > I use "console=ttyS0,38400n8" as boot option in Linux. The same console > option > gives the serial port data when we execute vmlinux.bin using BDI. > > The brief memory map is like this > The SDRAM starts at 0x00000000 (total 256 MB) > u-boot load address is 0x00100000 > uImage load address is 0x05000000 > Kernel Load Address/Entry Point : 0x02000000 ( I use mkimage tool to > generate uImage from vmlinux, the command I use is mkimage -A arm -O linux > -T kernel -C gzip -a 0x2000000 -e 0x2000000 -n "TEST Kernel Image" -d > vmlinux.bin.gz uImage") > > Pls help me where should I investigate to get Linux serial data. > > Thanks in advance. > > Regards, > Batsayan Das > Tata Consultancy Services > Mailto: [EMAIL PROTECTED] > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. IT Services > Business Solutions > Outsourcing > ____________________________________________ > =====-----=====-----===== > Notice: The information contained in this e-mail > message and/or attachments to it may contain > confidential or privileged information. If you are > not the intended recipient, any dissemination, use, > review, distribution, printing or copying of the > information contained in this e-mail message > and/or attachments to it are strictly prohibited. If > you have received this communication in error, > please notify us by reply e-mail or telephone and > immediately and permanently delete the message > and any attachments. Thank you > > > > _______________________________________________ > U-Boot mailing list > [email protected] > http://lists.denx.de/mailman/listinfo/u-boot > _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
