In message Pine.LNX.4.52.0301310914020.1245@mag.devdep.sysgo.de you wrote:
On Thu, 30 Jan 2003, Donald White wrote:
BDI>erase 0xfe000000 <step> <count> ;what is step? BDI>prog 0 u-boot.srec SREC ;assuming u-boot is based at 0xfe000000
Assuming your flash parameters are set up correctly (CHIPTYPE, CHIPSIZE, BUSWIDTH), you can just do an "erase 0xfe000000". (I never used any parameters for the erase command, but I assume the manual you received with the BDI2000 firmware software has some notes on it. :-)
This will just erase the first flash sector starting at address 0xfe000000 - it depends on the flash sector size if this is sufficient for the U-Boot image or not. With most bottom boot sector types it will NOT be sufficient - you will need to know the sector sizes of the flash chip and erase as many as needed.
For example on the TQM8260 board the following sequence is needed:
MPC8260>era 0 Erasing flash at 0x00000000 Erasing flash passed MPC8260>era 0x10000 Erasing flash at 0x00010000 Erasing flash passed MPC8260>era 0x18000 Erasing flash at 0x00018000 Erasing flash passed MPC8260>era 0x20000 Erasing flash at 0x00020000 Erasing flash passed MPC8260>prog 0 /tftpboot/ppcboot.bin bin Programming /tftpboot/ppcboot.bin , please wait .... Programming flash passed
Note that I usually do NOT initialize the memory controller registers in the BDI config file, so flash is still addressed using the reset mapping through CS0, i. e. it starts either at 0x0000 or at 0xFFF00000.
Best regards,
Wolfgang Denk