Stefan Nickl wrote: > 1st, whats the correlation between PVR and "Revision"?
A portion of the PVR can indicate the chip revision, but there are also other indicators. The manual and datasheet specific to the processor will define this. > while u-boot/doc/README.mpc85xxads reads: > > "MPC85xx Rev 1 Chip, in general you will use a Rev2 > chip from Nov.2003. If you still see this definition > while you have a Rev2(and newer) chip,undef this." That was an optimistic statement by the person from Motorola that originally wrote most of the u-boot update for the 85xx :-) > So what Rev do I have? Booby traps on the way? You definitely have a Rev. 1 part in your ADS board. There are no "booby traps", the Rev. 2 part cleans up some errata among other things. Your Motorola representative can give you the details. > 2nd, how to correctly setup the BDI flash access? > > bdi-8540>unlock 0xFF000000 > # Writing to workspace failed The initialization of the 85xx parts is quite challenging, especially for the debugger. > I've taken the sections from ads8560.cfg that > seem to map L2SRAM for that purpose and > use WORKSPACE 0xf0000000. Make sure you understand the reset/initialization process of the 8540, that the sections you have taken from the 8560 file are sufficient for your board configuration. The INIT section of the BDI2000 configuration file is quite generic, and I suspect it should work fine for the 8540 as well (I've never used the 8540, only the 8560). I've found initializing the sdram and using something within that space works the best. > every time to reset the board, otherwise it stays dead :( > Not necessary on manual reset and powerup. Extend the power up delay, make sure you wait for the reset to happen. Issuing a 'go' command with nothing to run (i.e. a bogus flash rom) could lead to some interesting processor states as well :-) Also, make sure you look at the stop8560.cfg when you do have code running from flash. You can't use the same configuration file like you can with other processors once the boot rom is running. Have fun! -- Dan ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/