Hello Wolfgang,
On Wed, 2003-08-27 at 13:39, Wolfgang Denk wrote:
Dear Seb,
in message 1061985583.3350.42.camel@xerxes.hypercube you wrote:
I've put a re-compiled u-boot on a tqm823 module. This wiped over the serial number and ethernet MAC address on the module. Re-setting the
YOU DID NOT READ THE DOCUMENTATION!!!
ethaddr is no problem as it is printed on the back of the module.
And so is (most of) the board type code, serial number, number of assigned MAC addresses.
I imagine I can do likewise for the serial number.
Not exactly. Some parts (like internal revision code) are NOT printed on the module.
And these are found in flash, start address 0x1ffc0, I think.
I followed the instructions from the ppcboot howto on the denx website:
----------------------- To install a new PPCBoot image on your TQM8xxL board using a BDI2000, proceed as follows:
BDI>reset BDI>- TARGET: processing user reset request BDI>- TARGET: reseting target passed BDI>- TARGET: processing target init list .... BDI>- TARGET: processing target init list passed BDI>md 0x1FFC0 0001ffc0 : 54514d38 36304c44 44424133 2d503530 TQM860LDDBA3-P50 0001ffd0 : 2e323033 20313032 32363132 32203030 .203 10226122 00 0001ffe0 : 44303933 30303238 38312034 00000000 D093002881 4.... 0001fff0 : 00000000 00000000 00000000 00000000 ................ 00020000 : ffffffff ffffffff ffffffff ffffffff ................ ... BDI>rm der 0x2006000f BDI>erase 00000000 Erasing flash at 0x00000000 Erasing flash passed BDI>erase 0x008000 Erasing flash at 0x00008000 Erasing flash passed BDI>erase 0x00c000 Erasing flash at 0x0000c000 Erasing flash passed BDI>erase 0x010000 Erasing flash at 0x00010000 Erasing flash passed BDI>erase 0x020000 Erasing flash at 0x00020000 Erasing flash passed BDI>prog 0 ppcboot.bin bin Programming ppcboot.bin , please wait .... Programming flash passed BDI>rm der 0x2002000f ----------------------------
However, the rm der 0x200xxxxx lines produced an error.
What do the rm der 0x2002000f and rm der 0x2006000f lines do?
rm modifies a general purpose/user defined register, but there is no register with the name DER or der in the tqm8xxL.cnf file; though if you look the init section of tqm8xxL.cnf:
[INIT] ; init core register WREG MSR 0x00001002 ;MSR : ME,RI WSPR 27 0x00001002 ;SRR1 : ME,RI WSPR 149 0x2002000F ;DER : set debug enable register ;;WSPR 149 0x2006000F ;DER : enable SYSIE for BDI flash progr.
DER seems to be the debug enable register. Seems like the plan is to set some sort of system interrupt enable before erasing the flash with u-(ppc)boot on, after when the system is put back into debug enable. However, it doesn't work on my BDI.
I would like to set u-boot/include/configs/TQM823L_myversion.h such that the Hardware ID gets set correctly. Can anyone tell me how?
Send me a message containing the MAC address (or serial number, or just the date when you bought the module) and I can look it up in our database.
Two modules, Mac addresses:
00:d0:93:00:7c:2b 00:d0:93:00:c0:a4
Thanks Wolfgang.
Seb