Hi, there,
I am playing with a PPC8265 based ZPC1900 board (from zpci.com). There is an expanded 8M FlashRAM SIMM on it. However flinfo in U-Boot 0.3 only shows the Bank # 1 AMD AM29F016D 2M flash memory. Bank # 2 is "missing or unknown FLASH type.
However that expanded flash RAM is bootable if I switch the boot selection jumper J14 on the board.
The ZPC1900 manual (http://www.zpci.com/Product_Documents/ZPC_1900/ZPCI_1900_manual_prelim_12.PD...) shows that 8MB SIMM Flash is addressable at 0xE0000000. However a 'md.b e0000000 16' command in U-boot cause bus error and reboot.
Does anybody know how to access the 8MB SIMM flash ? Actually what I need to do is to copy the on-board boot flash into that 8M SIMM flash as a backup.
Any advice is appreciated.
Regards,
Xiong Jiang