MPC850 and GDB help

2004-10-24 Thread Ryan Wilkins
Hello.. I'm very new to embedded systems but want to learn a bit more by using existing hardware. In this case, the existing hardware is a DirectvDSL ADSL modem based on the MPC850 processor. I've located the BDM port and built a MPCBDM version 2 interface to communicate with the MPC850. Th

MPC850 and GDB help

2004-10-24 Thread Frank
You probably want to post this to the u-boot users mailing lists. Compiling and linking u-boot to run out of ram is not a straight forward task. I've done it on more then one board, but it is not easy if you're a u-boot novice. Search the list for "running out of ram" or something like that and you

MPC850 and GDB help

2004-10-24 Thread Ryan Wilkins
Thanks for the idea. I'll check it out. What about running the Linux kernel from ram? Will I encounter the same difficulties? Thanks, Ryan Wilkins On Oct 24, 2004, at 3:33 PM, Frank wrote: > You probably want to post this to the u-boot users mailing > lists. Compiling and linking u-boot to r

MPC850 and GDB help

2004-10-24 Thread Frank
I think I may have confused you a little. When I said running u-boot from ram, I meant booting it from ram as if it had boot from flash. Normally, at some point, u-boot _will_ run from ram by copying itslef there and continung to run. But getting it to run from ram it's reset vector (first linked a

MPC850 and GDB help

2004-10-24 Thread Wolfgang Denk
In message <002D5C38-25FC-11D9-BA35-0050E4B0DC64 at elevated-networks.com> you wrote: > > What about running the Linux kernel from ram? Will I encounter the > same difficulties? No, this is what Linux is designed for. But this doesn't help you. Before Linux can run, you need a working boot

MPC850 and GDB help

2004-10-24 Thread Ryan Wilkins
Ahh yes.. I wanted to get u-boot loaded into RAM and running from there. The reason being, I'm having a bit of a hard time writing a flash chip definition file in the MPCBDM Flash.def format for the Intel DA28F320J5 flash chip. My thought was to boot u-boot from ram and then see if it had bet

MPC850 and GDB help

2004-10-24 Thread Ryan Wilkins
On Oct 24, 2004, at 7:39 PM, Wolfgang Denk wrote: > This is the wrong approach. First understand the problem, and fix it. > You will need exavctly this understanding to be able to port U-Boot. > > You MUST go step by step. You cannot leapfrog problems. Understood. I need to understand a lot of

[BUG] IBM440GX works too slow under nfsroot

2004-10-24 Thread Eugene Surovegin
On Fri, Oct 22, 2004 at 01:29:55AM -0700, Eugene Surovegin wrote: > FWIW, I haven't seen any problems when testing my new EMAC driver with > 100Mb hub, maybe it's only 10Mb related. > > Anyway, this is first time I'm hearing about half duplex problems, > Matt just mentioned them on IRC to me. >