2009/1/19 Jerry Van Baren gerald.vanbaren@ge.com:
Jean-Michel Hautbois wrote:
Hi everybody !
I am currently trying to flash u-boot into my MPC8272ADS board, but it is not working. When I am launching the "PROG" command, it tells: "Programming u-boot.bin , please wait .... # Programming flash memory failed at 0x00000000"
[snip]
Please find my config file attached. Thx & Best Regards JM
Hi JM,
Try disabling the workspace line: ;no;WORKSPACE 0x04700000 ;workspace in target RAM for fast download
The workspace significantly speeds up programming by copying a helper routine into RAM and then running that instead of bit-banging the writes through the JTAG port. The downside is that you have to have your RAM properly configured for it to work. Odds are pretty good this is biting you.
If disabling the workspace works, you are on your way. If and when you need (want) more programming speed, you will have to figure out what is misconfigured.
Personally, I only load the first u-boot (and an occasional oops-brick fix) via JTAG. I program all successive u-boots via u-boot itself, so I generally don't bother with the workspace.
HTH, gvb
OK, I tried another configuration file from the abatron site, and I am getting the same problem (see the file attached). Removing the workspace doesn't change anything.
What seems curious to me, is : ">prog 0xFF900000 u-boot.bin Programming u-boot.bin , please wait .... # Programming flash memory failed at 0xff900002"
I don't understand why asking for writing into 0xFF900000 it is trying to write into 0xFF980002... I tried different bus width too...
JM